2024/09/26 更新

写真a

ヤマウチ ユウスケ
山内 悠輔
YAMAUCHI Yusuke
所属
大学院工学研究科 物質プロセス工学専攻 物質創成工学 教授
大学院担当
大学院工学研究科
学部担当
工学部 マテリアル工学科
職名
教授

受賞 3

  1. Laureate Fellow

    2024年1月  

  2. 学術賞

    2023年12月   日本化学会   導電性ナノ多孔体の創製

  3. 学術賞

    2023年11月   日本セラミックス協会   金属有機構造体の熱分解による炭素系複合材料の創製

 

論文 302

  1. Advances in reticular materials for sustainable rare earth element recovery 査読有り

    Ke Liu, Yang Liu, You Wu, Jiale Liu, Qin Shuai, Lijin Huang, Zhaochu Hu, Yusuke Yamauchi

    Coordination Chemistry Reviews   522 巻   頁: 216199 - 216199   2025年1月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.ccr.2024.216199

  2. Fundamental understanding of Prussian blue and its analogues for superior capacitive deionization: A perspective from nanoarchitectonics 査読有り

    Changle Li, Yuecheng Xiong, Xiaojie Shen, Dan Luo, Wenjie Wu, Zhengtong Li, Mohamed H. Helal, Zeinhom M. El-Bahy, Yiyong Mai, Zhong Liu, Yusuke Yamauchi, Xingtao Xu

    Coordination Chemistry Reviews   520 巻   頁: 216100 - 216100   2024年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.ccr.2024.216100

  3. Insights into electrochemical paradigms for lithium extraction: Electrodialysis versus capacitive deionization 査読有り

    Dong Jiang, Ruibo Xu, Liang Bai, Wenjie Wu, Dan Luo, Zhengtong Li, Toru Asahi, Yiyong Mai, Zhong Liu, Yusuke Yamauchi, Xingtao Xu

    Coordination Chemistry Reviews   516 巻   頁: 215923 - 215923   2024年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.ccr.2024.215923

  4. Strategic Design of Porous Interfacial Evaporators: A Comprehensive Review Unveiling the Significant Role of Pore Engineering 査読有り

    Chenyang Dai, Zhengtong Li, Kaidan Zheng, Jia-Han Zhang, Rongrong Dai, Dan Luo, Huimin Gao, Hamdy Khamees Thabet, Zeinhom M. El-Bahy, Likun Pan, Yiyong Mai, Yusuke Yamauchi, Xingtao Xu

    Nano Energy     頁: 110244 - 110244   2024年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.nanoen.2024.110244

  5. Sulfonate-functionalized covalent organic frameworks for capacitive deionization 査読有り

    Dong Jiang, Xingtao Xu, Yoshio Bando, Saad M Alshehri, Miharu Eguchi, Toru Asahi, Yusuke Yamauchi

    Bulletin of the Chemical Society of Japan   97 巻 ( 9 )   2024年7月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Oxford University Press (OUP)  

    Abstract

    Capacitive deionization is an efficient and cost-effective technology for ion removal from brackish water. Here, we demonstrate a sulfonate-functionalized covalent organic framework as a novel faradaic cathode material for capacitive deionization applications. Due to its orderly arranged adsorption units in the covalent organic framework, the resulting covalent organic framework demonstrates a superior sodium cations removal capacity of 19.56 mg g−1 and a maximum desalination rate of 3.15 mg g−1 s−1 in a 500 ppm NaCl solution at 1.2 V.

    DOI: 10.1093/bulcsj/uoae074

    その他リンク: https://academic.oup.com/bcsj/article-pdf/97/9/uoae074/59068833/uoae074.pdf

  6. Tailored Design of Mesoporous Nanospheres with High Entropic Alloy Sites for Efficient Redox Electrocatalysis

    Ravi Nandan, Hiroki Nara, Ho Ngoc Nam, Quan Manh Phung, Quynh Phuong Ngo, Jongbeom Na, Joel Henzie, Yusuke Yamauchi

    Advanced Science     2024年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:p>High Entropy Alloys (HEAs) are a versatile material with unique properties, tailored for various applications. They enable pH‐sensitive electrocatalytic transformations like hydrogen evolution reaction (HER) and hydrogen oxidation reactions (HOR) in alkaline media. Mesoporous nanostructures with high surface area are preferred for these electrochemical reactions, but designing mesoporous HEA sis challenging. To overcome this challenge, a low‐temperature triblock copolymer‐assisted wet‐chemical approach is developed to produce mesoporous HEA nanospheres composed of PtPdRuMoNi systems with sufficient entropic mixing. Owing to active sites with inherent entropic effect, mesoporous features, and increased accessibility, optimized HEA nanospheres promote strong HER/HOR performance in alkaline medium. At 30 mV nominal overpotential, it exhibits a mass activity of ≈167 (HER) and 151 A g<jats:sub>Pt</jats:sub><jats:sup>−1</jats:sup> (HOR), far exceeding commercial Pt‐C electrocatalysts (34 and 48 A g<jats:sub>Pt</jats:sub><jats:sup>−1</jats:sup>) and many recently reported various alloys. The Mott‐Schottky analysis reveals HEA nanospheres inherit high charge carrier density, positive flat band potential, and smaller charge transfer barrier, resulting in better activity and faster kinetics. This micelle‐assisted synthetic enable the exploration of the compositional and configurational spaces of HEAs at relatively low temperature, while simultaneously facilitating the introduction of mesoporous nanostructures for a wide range of catalytic applications.</jats:p>

    DOI: 10.1002/advs.202402518

  7. A mesoporous gold biosensor to investigate immune checkpoint protein heterogeneity in single lung cancer cells 査読有り

    Emtiaz Ahmed, Mostafa Kamal Masud, Prathyusha Komatineni, Shuvashis Dey, Richard Lobb, Md Shahriar A. Hossain, Andreas Möller, Yusuke Yamauchi, Abu Ali Ibn Sina, Matt Trau

    Biosensors and Bioelectronics   249 巻   頁: 115984 - 115984   2024年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.bios.2023.115984

  8. Recent advances in Ru/Ir-based electrocatalysts for acidic oxygen evolution reaction 査読有り

    Guoliang Gao, Zixu Sun, Xueli Chen, Guang Zhu, Bowen Sun, Yusuke Yamauchi, Shude Liu

    Applied Catalysis B: Environmental   343 巻   頁: 123584 - 123584   2024年4月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.apcatb.2023.123584

  9. Recrystallization strategy of ZnBTC nanowires and derivates for supercapacitor application 査読有り

    Fei-Bao Zhang, Zu-Shun Fan, Brian Yuliarto, Sameh M. Osman, Minjun Kim, Yusuke Yamauchi

    Chemical Engineering Journal   486 巻   頁: 150112 - 150112   2024年4月

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    担当区分:最終著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2024.150112

  10. Mild selective photochemical oxidation of an organic sulfide using OxP-polyimide porous polymers as singlet oxygen generators 査読有り

    Jan Hynek, Daniel T. Payne, Lok Kumar Shrestha, Mandeep K. Chahal, Renzhi Ma, Jiang Dong, Katsuhiko Ariga, Yusuke Yamauchi, Jonathan P. Hill

    Science and Technology of Advanced Materials   25 巻 ( 1 )   2024年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Informa UK Limited  

    DOI: 10.1080/14686996.2024.2322458

  11. Heterometallic Electrocatalysts Derived from High-Nuclearity Metal Clusters for Efficient Overall Water Splitting 査読有り

    Fu-Chun Pan, Jun Jia, Feng Gong, Yonghui Liu, Shude Liu, Seong Chan Jun, Dunmin Lin, Yuzheng Guo, Yusuke Yamauchi, Yu Huo

    ACS Nano   18 巻 ( 8 ) 頁: 6202 - 6214   2024年2月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.3c09159

  12. Nanoporous Dna Field Effect Transistor with Potential for Random‐Access Memory Applications: A Selectivity Performance Evaluation 査読有り

    Volkan Kilinc, Ryoma Hayakawa, Yusuke Yamauchi, Yutaka Wakayama, Jonathan P. Hill

    Advanced Sensor Research     2024年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Methods to encode digital data items as strands of synthetic DNA followed by selective data retrieval have been demonstrated. However, these initially bio‐oriented processes remain slow and not optimized. DNA field‐effect transistor (DNA‐FET) is studied here as a possible random‐access memory (RAM) device for simple, selective and rapid ssDNA fragment retrieval used as data pool identifier. The DNA‐FET is based on a co‐planar Au‐gated fully organic transistor appended with short single‐stranded DNA (ssDNA) probes bearing a blocking molecule to prevent partial hybridization and achieve near perfect selectivity for short length ssDNA (up to 45 nt). Examination of transconductance of the novel active layer incorporating a DNA nanopore architecture reveals enhanced binding site accessibility. This, in turn, facilitates discriminatory hybridization, particularly in the physical retrieval of short‐length ssDNA from a competitive, concentrated ssDNA background pool consisting of nine different sequences, with at least one nucleotide difference. The DNA‐FET exhibits rapid operation (9 min) in the millivolt range, low detection limit (sub‐femtomolar), high selectivity and reusability. Considering the straightforward concept, near error‐free identification capacity and hypothetically outstanding scalability, the DNA‐FET described here has potential as a foundation for further exploration of advanced RAM technology in the DNA data storage process.

    DOI: 10.1002/adsr.202300176

  13. Metal-organic framework-based nanoarchitectonics: A promising material platform for electrochemical detection of organophosphorus pesticides 査読有り

    Peisen Huang, Wenjie Wu, Mohua Li, Zhengtong Li, Likun Pan, Tansir Ahamad, Saad M. Alshehri, Yoshio Bando, Yusuke Yamauchi, Xingtao Xu

    Coordination Chemistry Reviews   501 巻   頁: 215534 - 215534   2024年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.ccr.2023.215534

  14. Structural design of Janus lamellar membrane based on bismuth oxychloride for comprehensive solar energy utilization 査読有り

    Weiming Zhou, Hongqiang Huang, Chong Wang, Liwei Wang, Xiangfeng Lin, Yusuke Asakura, Yusuke Yamauchi, Sameh M. Osman, Zhanhui Yuan

    Chemical Engineering Journal   481 巻   頁: 148456 - 148456   2024年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.148456

  15. Pt Nanoparticle–Mn Single-Atom Pairs for Enhanced Oxygen Reduction 査読有り

    Xiaoqian Wei, Shaojia Song, Weiwei Cai, Yunqing Kang, Qie Fang, Ling Ling, Yingji Zhao, Zexing Wu, Xiaokai Song, Xingtao Xu, Sameh M. Osman, Weiyu Song, Toru Asahi, Yusuke Yamauchi, Chengzhou Zhu

    ACS Nano   18 巻 ( 5 ) 頁: 4308 - 4319   2024年1月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.3c09819

  16. Synthesis of millimeter-scale ZIF-8 single crystals and their reversible crystal structure changes 査読有り

    Azhar Alowasheeir, Nagy L. Torad, Toru Asahi, Saad M. Alshehri, Tansir Ahamad, Yoshio Bando, Miharu Eguchi, Yusuke Yamauchi, Yukana Terasawa, Minsu Han

    Science and Technology of Advanced Materials   25 巻 ( 1 )   2024年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Informa UK Limited  

    DOI: 10.1080/14686996.2023.2292485

  17. Excess heat production of the pair annihilation of ionic vacancies in a copper redox reaction using a double bipolar MHD electrode 査読有り

    Makoto Miura, Atsushi Sugiyama, Yoshinobu Oshikiri, Ryoichi Morimoto, Iwao Mogi, Miki Miura, Yusuke Yamauchi, Ryoichi Aogaki

    Scientific Reports   14 巻 ( 1 )   2024年1月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media LLC  

    Abstract

    Through a copper double bipolar magnetohydrodynamic (MHD) electrode (MHDE) producing twice the amounts of ionic vacancies than a conventional single MHDE, the molar excess heat of the pair annihilation of ionic vacancies, 702 kJ mol<sup>−1</sup> at 10 T on average was obtained in a copper redox reaction. It was about twice as large as that of a single MHDE, 387 kJ mol<sup>−1</sup> at the same magnetic field. This result strongly suggests that a multi-channel bipolar MHDE will produce much greater excess heat. To conserve the linear momentum and electric charge during electron transfer in an electrode reaction, ionic vacancies are created, storing the solvation energy in the polarized core of the order of 0.1 nm, and the pair annihilation of the vacancies with opposite charges liberates the energy as excess heat. The promoted excess heat by the double bipolar MHDE with a diffuser at 10 T was 710 ± 144 kJ mol<sup>−1</sup>, whereas as mentioned above, 702 ± 426 kJ mol<sup>−1</sup> was obtained by the same electrode without such a diffuser. From the theoretical excess heat of 1140 kJ mol<sup>−1</sup>, the collision efficiencies in pair annihilation were 0.623 ± 0.126 and 0.616 ± 0.374, respectively. From these results, the reproducibility of the thermal measurement was experimentally validated. At the same time, it was concluded that at magnetic fields beyond 10 T, the concentration of ionic vacancy and the collision efficiency take constant uppermost values.

    DOI: 10.1038/s41598-024-51834-w

    その他リンク: https://www.nature.com/articles/s41598-024-51834-w

  18. Surface Curvature Matters in Electrochemical Reactions 査読有り

    Cuiling Li, Yusuke Yamauchi

    ACS Central Science   10 巻 ( 1 ) 頁: 16 - 18   2024年1月

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    担当区分:最終著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acscentsci.3c01637

  19. Hierarchical Spatial Confinement Unlocking the Storage Limit of MoS<sub>2</sub> for Flexible High-Energy Supercapacitors 査読有り

    Ling Kang, Shude Liu, Qia Zhang, Jianxiong Zou, Jin Ai, Donghong Qiao, Wenda Zhong, Yuxiang Liu, Seong Chan Jun, Yusuke Yamauchi, Jian Zhang

    ACS Nano   18 巻 ( 3 ) 頁: 2149 - 2161   2024年1月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.3c09386

  20. Integrated Sensors for Soft Medical Robotics 査読有り

    Yulin Qiu, Aditya Ashok, Chi Cong Nguyen, Yusuke Yamauchi, Thanh Nho Do, Hoang‐Phuong Phan

    Small     2024年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Minimally invasive procedures assisted by soft robots for surgery, diagnostics, and drug delivery have unprecedented benefits over traditional solutions from both patient and surgeon perspectives. However, the translation of such technology into commercialization remains challenging. The lack of perception abilities is one of the obstructive factors paramount for a safe, accurate and efficient robot‐assisted intervention. Integrating different types of miniature sensors onto robotic end‐effectors is a promising trend to compensate for the perceptual deficiencies in soft robots. For example, haptic feedback with force sensors helps surgeons to control the interaction force at the tool‐tissue interface, impedance sensing of tissue electrical properties can be used for tumor detection. The last decade has witnessed significant progress in the development of multimodal sensors built on the advancement in engineering, material science and scalable micromachining technologies. This review article provides a snapshot on common types of integrated sensors for soft medical robots. It covers various sensing mechanisms, examples for practical and clinical applications, standard manufacturing processes, as well as insights on emerging engineering routes for the fabrication of novel and high‐performing sensing devices.

    DOI: 10.1002/smll.202308805

  21. Hierarchical bimetallic metal-organic frameworks with controllable assembling sub-units and interior architectures for enhanced ammonia detection 査読有り

    Silvia Chowdhury, Nagy L. Torad, Manjeet Godara, Ahmed A.M. El-Amir, Gilang Gumilar, Aditya Ashok, Mohammad Rezaul Karim, Ibrahim Abdullah Alnaser, Watcharop Chaikittisilp, Nirat Ray, Yusuke Yamauchi, Yusuf Valentino Kaneti

    Chemical Engineering Journal   480 巻   頁: 147990 - 147990   2024年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.147990

  22. Superconducting joints using reacted multifilament MgB2 wires: A technology toward cryogen-free MRI magnets 査読有り

    Dipak Patel, Akiyoshi Matsumoto, Hiroaki Kumakura, Yuka Hara, Toru Hara, Minoru Maeda, Hao Liang, Yusuke Yamauchi, Seyong Choi, Jung Ho Kim, Md Shahriar A. Hossain

    Journal of Magnesium and Alloys   12 巻 ( 1 ) 頁: 159 - 170   2024年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.jma.2023.11.014

  23. Engineering a hollow bowl-like porous carbon-confined Ru–MgO hetero-structured nanopair as a high-performance catalyst for ammonia borane hydrolysis 査読有り

    Jialei Yang, Zhenyu Yang, Jiafu Li, Hao Gang, Donghai Mei, Dongming Yin, Ruiping Deng, Yifeng Zhu, Xingyun Li, Ning Wang, Sameh M. Osman, Yusuke Yamauchi

    Materials Horizons     2024年

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    担当区分:最終著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    A sub-nano interfacial catalytic structure is orchestrated by tailor-designing a hollow bowl-like porous carbon-confined Ru–MgO hetero-structured nanopair as a high-performance catalyst for ammonia borane hydrolysis.

    DOI: 10.1039/d3mh01909h

  24. First-principles studies of enhanced oxygen reduction reactions on graphene- and nitrogen-doped graphene-coated platinum surfaces 査読有り

    Ho Ngoc Nam, Quan Manh Phung, Pongpol Choeichom, Yusuke Yamauchi, Nagahiro Saito

    Physical Chemistry Chemical Physics     2024年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    Graphene coating and N-doped graphene coating are not only good physical protective layers but also have efficient ORR catalytic activity on platinum surfaces, which is important for promoting high-performance fuel cell technology.

    DOI: 10.1039/d4cp00269e

  25. SiO<sub>2</sub> assisted Cu<sup>0</sup>–Cu<sup>+</sup>–NH<sub>2</sub> composite interfaces for efficient CO<sub>2</sub> electroreduction to C<sub>2+</sub> products 査読有り

    Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang

    Journal of Materials Chemistry A   12 巻 ( 2 ) 頁: 1218 - 1232   2024年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    SiO<sub>2</sub> assisted abundant Cu<sup>0</sup>–Cu<sup>+</sup>–NH<sub>2</sub> composite interfaces enhance the adsorption and activation of CO<sub>2</sub> and H<sub>2</sub>O, strengthen the adsorption of CO intermediates, and promote C–C coupling to produce C<sub>2+</sub> products.

    DOI: 10.1039/d3ta05652j

  26. Sunlight-driven and gram-scale vanillin production <i>via</i> Mn-defected γ-MnO<sub>2</sub> catalyst in aqueous environment 査読有り

    Qingping Ke, Yurong Zhang, Chao Wan, Jun Tang, Shenglai Li, Xu Guo, Minsu Han, Takashi Hamada, Sameh M. Osman, Yunqing Kang, Yusuke Yamauchi

    Chemical Science     2024年

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    担当区分:最終著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    We demonstrate Mn-defected γ-MnO<sub>2</sub> as photocatalyst for synthesis of vanillin in aqueous environment under room temperature. The ˙OH species on Mn-defected γ-MnO<sub>2</sub> act as reactive oxygen species for oxidation of vanillyl alcohol into vanillin.

    DOI: 10.1039/d3sc05654f

  27. Organic precursors for tailored synthesis of sulfur- and nitrogen-doped mesoporous carbons: a molecular design approach

    Takashi Hamada, Hiroki Nara, Minjun Kim, Hirokatsu Miyata, Yusuke Yamauchi

    Chemical Communications     2024年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/D4CC00101J

  28. Enhancing Electrocatalytic Performance via Thickness-Tuned Hollow N-Doped Mesoporous Carbon with Embedded Co Nanoparticles for Oxygen Reduction Reaction 査読有り

    Yingji Zhao, Liyang Zhu, Jing Tang, Lei Fu, Dong Jiang, Xiaoqian Wei, Hiroki Nara, Toru Asahi, Yusuke Yamauchi

    ACS Nano   18 巻 ( 1 ) 頁: 373 - 382   2023年12月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.3c07375

  29. Anisotropic Interface Successive Assembly for Bowl-Shaped Metal–Organic Framework Nanoreactors with Precisely Controllable Meso-/Microporous Nanodomains 査読有り

    Guiyuan Zhong, Guangrui Chen, Ji Han, Ruigang Sun, Bin Zhao, Haidong Xu, Sibo Wang, Yusuke Yamauchi, Buyuan Guan

    ACS Nano   17 巻 ( 24 ) 頁: 25061 - 25069   2023年12月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.3c07635

  30. Selective Etching of Metal–Organic Frameworks for Open Porous Structures: Mass-Efficient Catalysts with Enhanced Oxygen Reduction Reaction for Fuel Cells 査読有り

    Jingjing Li, Wei Xia, Xingtao Xu, Dong Jiang, Ze-Xing Cai, Jing Tang, Yanna Guo, Xianli Huang, Tao Wang, Jianping He, Buxing Han, Yusuke Yamauchi

    Journal of the American Chemical Society   145 巻 ( 50 ) 頁: 27262 - 27272   2023年12月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/jacs.3c05544

  31. A quasi-solid state polymer electrolyte for high-rate and long-life sodium-metal batteries 査読有り

    S.K. Vineeth, Chhail Bihari Soni, Sungjemmenla, C. Sanjaykumar, Yusuke Yamauchi, Minsu Han, Vipin Kumar

    Journal of Energy Storage   73 巻   頁: 108780 - 108780   2023年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.est.2023.108780

  32. Surface curvature effect on single-atom sites for the oxygen reduction reaction: A model of mesoporous MOF-derived carbon 査読有り

    Jingjing Li, Wei Xia, Yanna Guo, Ruijuan Qi, Xingtao Xu, Dong Jiang, Tao Wang, Yoshiyuki Sugahara, Jianping He, Yusuke Yamauchi

    Chemical Engineering Journal   477 巻   頁: 146841 - 146841   2023年12月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.146841

  33. Unleashing the power of capacitive deionization: Advancing ion removal with biomass-derived porous carbonaceous electrodes 査読有り

    Hai Deng, Ziquan Wang, Minjun Kim, Yusuke Yamauchi, Stephen J. Eichhorn, Maria-Magdalena Titirici, Libo Deng

    Nano Energy   117 巻   頁: 108914 - 108914   2023年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.nanoen.2023.108914

  34. Publisher Correction: Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites (Nature Communications, (2023), 14, 1, (4182), 10.1038/s41467-023-39157-2)

    Yunqing Kang, Ovidiu Cretu, Jun Kikkawa, Koji Kimoto, Hiroki Nara, Asep Sugih Nugraha, Hiroki Kawamoto, Miharu Eguchi, Ting Liao, Ziqi Sun, Toru Asahi, Yusuke Yamauchi

    Nature Communications   14 巻 ( 1 )   2023年12月

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    掲載種別:研究論文(学術雑誌)  

    Correction to: Nature Communications, published online 13 July 2023 The original version of the Supplementary Information associated with this Article included incorrect Supplementary Datasets. Dataset 1 reported an editorial policy checklist; Dataset 3 reported a general description of Supplementary Figures and Tables contained in the Supplementary Information PDF file; Dataset 4 contained editorial instructions to the authors for the preparation of the final version of the article. Datasets 1, 3, and 4 have been removed in the corrected version of the Article. In addition, the Reporting Summary and the Source Data file were originally published with the wrong titles of Dataset 2 and Dataset 5. The HTML version of the article has been corrected.

    DOI: 10.1038/s41467-023-40653-8

    Scopus

    PubMed

  35. Unlocking Catalytic Potential: Encasing CoP Nanoparticles within Mesoporous CoFeP Nanocubes for Enhanced Oxygen Evolution Reaction 査読有り

    Lei Fu, Jun Zhou, Zilin Zhou, Bing Xiao, Nithima Khaorapapong, Yunqing Kang, Kai Wu, Yusuke Yamauchi

    ACS Nano   17 巻 ( 22 ) 頁: 22744 - 22754   2023年11月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.3c07270

  36. Multi‐Scale Engineered 2D Carbon Polyhedron Array with Enhanced Electrocatalytic Performance 査読有り

    Xiaokai Song, Yujie Song, Xiaopeng Li, Xiaotong Wu, Zequn Wang, Xuhui Sun, Meng An, Xiaoqian Wei, Yingji Zhao, Jiamin Wei, Chenglu Bi, Jianhua Sun, Hiroki Nara, Jungmok You, Yusuke Yamauchi

    Small   20 巻 ( 11 )   2023年11月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Electrocatalyst engineering from the atomic to macroscopic level of electrocatalysts is one of the most powerful routes to boost the performance of electrochemical devices. However, multi‐scale structure engineering mainly focuses on the range of atomic‐to‐particle scale such as hierarchical porosity engineering, while catalyst engineering at the macroscopic level, such as the arrangement configuration of nanoparticles, is often overlooked. Here, a 2D carbon polyhedron array with a multi‐scale engineered structure via facile chemical etching, ice‐templating induced self‐assembly, and high‐temperature pyrolysis processes is reported. Controlled phytic acid etching of the carbon precursor introduces homogeneous atomic phosphorous and nitrogen doping, as well as a well‐defined mesoporous structure. Subsequent ice‐templated self‐assembly triggers the formation of a 2D particle array superstructure. The atomic‐level doping gives rise to high intrinsic activity, while the well‐engineered porous structure and particle arrangement addresses the mass transport limitations at the microscopic particle level and macroscopic electrode level. As a result, the as‐prepared electrocatalyst delivers outstanding performance toward oxygen reduction reaction in both acidic and alkaline media, which is better than recently reported state‐of‐the‐art metal‐free electrocatalysts. Molecular dynamics simulation together with extensive characterizations indicate that the performance enhancement originates from multi‐scale structural synergy.

    DOI: 10.1002/smll.202305459

  37. Controlled synthesis of hollow carbon ring incorporated g-C3N4 tubes for boosting photocatalytic H2O2 production 査読有り

    Hao Luo, Tianshang Shan, Jianwen Zhou, Liulian Huang, Lihui Chen, Rongjian Sa, Yusuke Yamauchi, Jungmok You, Yusuke Asakura, Zhanhui Yuan, He Xiao

    Applied Catalysis B: Environmental   337 巻   頁: 122933 - 122933   2023年11月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.apcatb.2023.122933

  38. Dynamics-driven tailoring of sub-nanometric Pt-Ni bimetals confined in hierarchical zeolite for catalytic hydrodeoxygenation 査読有り

    Yajie Tian, Longhui Guo, Congzhen Qiao, Zixu Sun, Yusuke Yamauchi, Shude Liu

    Applied Catalysis B: Environmental   336 巻   頁: 122945 - 122945   2023年11月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.apcatb.2023.122945

  39. Photocatalytic dye degradation by BaTiO3/zeolitic imidazolate framework composite 査読有り

    Jaykishon Swain, Anulipsa Priyadarshini, Sugato Hajra, Swati Panda, Jagannath Panda, Raghabendra Samantaray, Yusuke Yamauchi, Minsu Han, Hoe Joon Kim, Rojalin Sahu

    Journal of Alloys and Compounds   965 巻   頁: 171438 - 171438   2023年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.jallcom.2023.171438

  40. Superconducting joints of reacted monofilament MgB<sub>2</sub> wires sintered by hot uniaxial pressing system 査読有り

    Hao Liang, Andrzej Morawski, Dipak Patel, Tomasz Cetner, Md Motasim Billah, Matt Rindfleisch, Richard Taylor, Yusuke Yamauchi, Md Shahriar A Hossain

    Superconductor Science and Technology   36 巻 ( 12 ) 頁: 125011 - 125011   2023年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:IOP Publishing  

    Abstract

    Successful superconducting joints of reacted magnesium diboride (MgB<sub>2</sub>) monofilament wires are reported in this paper. The absence of a reliable method to develop superconducting joints between reacted MgB<sub>2</sub> wires presents a major obstacle to the wider adoption of MgB<sub>2</sub> as a material for magnet winding. A hot uniaxial pressing (HUP) system was exploited for sintering purposes since it can facilitate the formation of condensed in situ bulk on the wire filament. The wires were manufactured with an extra thick barrier material to protect the filament from damage during HUP sintering. The sintering temperature and pressure of the HUP system were varied to comprehend the best-performing joint. The performance of joints could be improved by depreciating the pores within the intermediate bulk of the joint. To prove this point, joints were cut to study their morphology. However, due to sintering in pressurised conditions, the reaction of the in situ intermediate bulk was not completed. The x-ray diffraction result detected a significant unreacted magnesium phase in the intermediate bulk. This work obtained joints of reacted MgB<sub>2</sub> wires which can be considered for industrial MgB<sub>2</sub> magnetic resonance imaging magnets fabrication.

    DOI: 10.1088/1361-6668/ad02c7

    その他リンク: https://iopscience.iop.org/article/10.1088/1361-6668/ad02c7/pdf

  41. Inorganic‐Organic Nanoarchitectonics: MXene/Covalent Organic Framework Heterostructure for Superior Microextraction 査読有り

    Jingyu Wu, Zhuo Wang, Shuaihua Zhang, Qian Yang, Zhi Li, Xiaohuan Zang, Xiaoxian Zhao, Ningzhao Shang, Nithima Khaorapapong, Xingtao Xu, Yusuke Yamauchi

    Small   20 巻 ( 10 )   2023年10月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    One of the difficulties limiting covalent organic frameworks (COFs) from becoming excellent adsorbents is their stacking/aggregation architectures owing to poor morphology/structure control during the synthesis process. Herein, an inorganic‐organic nanoarchitectonics strategy to synthesize the MXene/COF heterostructure (Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/TAPT‐TFP) is developed by the assembly of β‐ketoenamine‐linked COF on the Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene nanosheets. The as‐prepared Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/TAPT‐TFP retains the 2D architecture and high adsorption capacity of MXenes as well as large specific surface area and hierarchical porous structure of COFs. As a proof of concept, the potential of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/TAPT‐TFP for solid‐phase microextraction (SPME) of trace organochlorine pesticides (OCPs) is investigated. The Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/TAPT‐TFP based SPME method achieves low limits of detection (0.036–0.126 ng g<sup>−1</sup>), wide linearity ranges (0.12–20.0 ng g<sup>−1</sup>), and acceptable repeatabilities for preconcentrating trace OCPs from fruit and vegetable samples. This study offers insights into the potential of constructing COF or MXene‐based heterostructures for the microextraction of environmental pollutants.

    DOI: 10.1002/smll.202305730

  42. Tensile Strain-Mediated Spinel Ferrites Enable Superior Oxygen Evolution Activity 査読有り

    Yaotian Yan, Jinghuang Lin, Keke Huang, Xiaohang Zheng, Liang Qiao, Shude Liu, Jian Cao, Seong Chan Jun, Yusuke Yamauchi, Junlei Qi

    Journal of the American Chemical Society   145 巻 ( 44 ) 頁: 24218 - 24229   2023年10月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/jacs.3c08598

  43. Mesoporous Metastable CuTe<sub>2</sub> Semiconductor 査読有り

    Aditya Ashok, Arya Vasanth, Tomota Nagaura, Caitlin Setter, Jack Kay Clegg, Alexander Fink, Mostafa Kamal Masud, Md Shahriar Hossain, Takashi Hamada, Miharu Eguchi, Hoang-Phuong Phan, Yusuke Yamauchi

    Journal of the American Chemical Society   145 巻 ( 43 ) 頁: 23461 - 23469   2023年10月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/jacs.3c05846

  44. Water Activation in Solar‐Powered Vapor Generation 査読有り

    Dan Wei, Chengbing Wang, Jing Zhang, Heng Zhao, Yusuke Asakura, Miharu Eguchi, Xingtao Xu, Yusuke Yamauchi

    Advanced Materials   35 巻 ( 47 )   2023年10月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Solar‐powered vapor evaporation (SVG), based on the liquid‐gas phase conversion concept using solar energy, has been given close attention as a promising technology to address the global water shortage. At molecular level, water molecules escaping from liquid water should overcome the attraction of the molecules on the liquid surface layer to evaporate. For this reason, it is better to reduce the energy required for evaporation by breaking a smaller number of hydrogen bonds or forming weak hydrogen bonds to ensure efficient and convenient vapor production. Many novel evaporator materials and effective water activation strategies have been proposed to stimulate rapid steam production and surpass the theoretical thermal limit. However, an in‐depth understanding of the phase/enthalpy change process of water evaporation is unclear. In this review, a summary of theoretical analyses of vaporization enthalpy, general calculations, and characterization methods is provided. Various water activation mechanisms are also outlined to reduce evaporation enthalpy in evaporators. Moreover, unsolved issues associated with water activation are critically discussed to provide a direction for future research. Meanwhile, significant pioneering developments made in SVG are highlighted, hoping to provide a relatively entire chain for more scholars who are just stepping into this field.

    DOI: 10.1002/adma.202212100

  45. <i>Green Biomaterials</i> : fundamental principles 査読有り

    Navid Rabiee, Mehmet R. Dokmeci, Ali Zarrabi, Pooyan Makvandi, Mohammad Reza Saeb, Hassan Karimi-Maleh, Shima Jafarzadeh, Ceren Karaman, Yusuke Yamauchi, Majid Ebrahimi Warkiani, Sidi A. Bencherif, Geeta Mehta, Miharu Eguchi, Ajeet Kaushik, Mohammad-Ali Shahbazi, Ana Cláudia Paiva-Santos, Jacek Ryl, Eder C. Lima, Michael R. Hamblin, Rajender S. Varma, YunSuk Huh, A. T. Ezhil Vilian, Piyush Kumar Gupta, Sandeep Kumar Lakhera, Kavindra Kumar Kesari, Yu-Ting Liu, Mohammadreza Tahriri, Ganji Seeta Rama Raju, Mohsen Adeli, Ali Mohammadi, Jianglin Wang, Mohd Zahid Ansari, Tejraj Aminabhavi, Houman Savoji, Gautam Sethi, Tomasz Bączek, Agata Kot-Wasik, Marcela Elisabeth Penoff, Abdorreza Mohammadi Nafchi, Justyna Kucinska-Lipka, Masoumeh Zargar, Mohsen Asadnia, Amir Reza Aref, Moein Safarkhani, Milad Ashrafizadeh, Reddicherla Umapathi, Amir Ghasemi, Milica Radisic

    Green Biomaterials   1 巻 ( 1 ) 頁: 1 - 4   2023年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Informa UK Limited  

    DOI: 10.1080/29934168.2023.2268943

  46. N, P-doped carbon nanorings for high-performance capacitive deionization 査読有り

    Jingyu Wu, Xiaoxu Xuan, Shuaihua Zhang, Zhi Li, Haolin Li, Bin Zhao, Haolin Ye, Zhichang Xiao, Xiaoxian Zhao, Xingtao Xu, Xinjuan Liu, Jungmok You, Yusuke Yamauchi

    Chemical Engineering Journal   473 巻   頁: 145421 - 145421   2023年10月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.145421

  47. A general protocol for precise syntheses of ordered mesoporous intermetallic nanoparticles 査読有り

    Hao Lv, Yanzhi Wang, Lizhi Sun, Yusuke Yamauchi, Ben Liu

    Nature Protocols   18 巻 ( 10 ) 頁: 3126 - 3154   2023年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media LLC  

    DOI: 10.1038/s41596-023-00872-1

    その他リンク: https://www.nature.com/articles/s41596-023-00872-1

  48. Retrospect and Prospect: Nanoarchitectonics of Platinum‐Group‐Metal‐Based Materials 査読有り

    Minsu Han, Kenya Kani, Jongbeom Na, Jeonghun Kim, Yoshio Bando, Tansir Ahamad, Saad M. Alshehri, Yusuke Yamauchi

    Advanced Functional Materials   33 巻 ( 44 )   2023年9月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Nanoarchitectonics, a concept encompassing nanoscale microstructures and atomic arrangements in materials, enables the precise modification of materials for desired applications by controlling their physical and chemical properties, as well as surface charge or energy. Particularly in metal materials, where surface reactions play a critical role, nanoarchitecture becomes the most influential factor affecting activity, selectivity, and stability. Focusing on platinum‐group metals (PGMs) due to their inherently high efficiency in energy and environmental applications, this article provides a comprehensive review of synthetic methods for the morphological control of metal nanomaterials. The morphological control is classified into atomic arrangements in 0D, 1D, and 2D nanocrystals, as well as nanoporous structures, and the mechanisms of major reactions are covered in detail. Each chapter is supplemented with a table featuring several examples, facilitating the reader's understanding of the structural controls of PGMs. Finally, the article outlines future challenges in achieving novel metal nanoarchitecture. The hope is that this review provides valuable insights into the synthesis of PGM‐based nanomaterials and serves as a guide for designing and synthesizing innovative metal nanostructures for diverse applications.

    DOI: 10.1002/adfm.202301831

  49. Achieving high ion flux and asymmetric transport in nanofluidic membranes reconstructed from layered double hydroxide nanosheets 査読有り

    Fang Xian, LuLu Jia, Yoshiyuki Sugahara, Yusuke Yamauchi, Takayoshi Sasaki, Renzhi Ma

    Chemical Engineering Journal   471 巻   頁: 144703 - 144703   2023年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.144703

  50. Ion-imprinted magnetic adsorbents for the selective capture of Cu(II) and their cascade application as heterogeneous recyclable catalysts for Ullmann and Glaser coupling reactions 査読有り

    Bin Zuo, Jiayu Zuo, Hanfei Chen, Qinyue Deng, Yusuke Yamauchi, Jeonghun Kim, Xingtao Xu

    Chemical Engineering Journal   471 巻   頁: 143893 - 143893   2023年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.143893

  51. Hierarchical magnetic nitrogen-doped porous carbon derived from a covalent organic framework (COF) for the highly efficient removal of sulfamerazine 査読有り

    Jiale Liu, Weikang Guo, Hui Tao, Yusuke Asakura, Qin Shuai, Jeonghun Kim, Lijin Huang, Yusuke Yamauchi

    Chemical Engineering Journal   471 巻   頁: 144544 - 144544   2023年9月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.144544

  52. Gorgeous turn-back: Rough surface treatment strategy induces Cu-C and N-C active moieties for bifunctional oxygen electrocatalysis 査読有り

    Shuai Wang, Zhongmei Che, Min Zou, Yue Wu, Min Cui, Yingshu Guo, Mingrui Zhang, Wei Hu, Zihan Zou, Guangqiang Lv, Zexing Wu, Jeonghun Kim, Yusuke Yamauchi

    Chemical Engineering Journal   471 巻   頁: 144262 - 144262   2023年9月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.144262

  53. Distinctive p-d orbital hybridization in RuSb nanobranches for simultaneously enhanced hydrogen evolution and hydrazine oxidation in alkaline seawater 査読有り

    Xiaofei Liu, Tianxing Wang, Yilin Chen, Jingtao Wang, Wenjie Xie, Rongqian Wu, Xingtao Xu, Lihui Pang, Xiaogang Zhang, Yi Lv, Guangzhao Wang, Yusuke Yamauchi, Tian (Leo) Jin

    Applied Catalysis B: Environmental   333 巻   頁: 122771 - 122771   2023年9月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.apcatb.2023.122771

  54. Construction of a 2D lamellar membrane for a combination of photocatalytic hydrogen evolution and photothermal water evaporation 査読有り

    Weiming Zhou, Hongqiang Huang, Yiting Wu, Jun Wang, Yusuke Yamauchi, Jeonghun Kim, Sameh M. Osman, Xingtao Xu, Liwei Wang, Chong Wang, Zhanhui Yuan

    Chemical Engineering Journal   471 巻   頁: 144395 - 144395   2023年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.144395

  55. Multifunctional composite membranes for interfacial solar steam and electricity generation 査読有り

    Yiting Wu, Jianqiushi Ma, Shuo Zang, Weiming Zhou, Zequn Wang, Minsu Han, Sameh M. Osman, Chong Wang, Yusuke Yamauchi, Jungmok You, Meng An, Liwei Wang, Zhanhui Yuan

    Chemical Engineering Journal   472 巻   頁: 144600 - 144600   2023年9月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.144600

  56. Emerging Pristine MOF‐Based Heterostructured Nanoarchitectures: Advances in Structure Evolution, Controlled Synthesis, and Future Perspectives 査読有り

    Qingqing He, Jie Bai, Huayu Wang, Shude Liu, Seong Chan Jun, Yusuke Yamauchi, Lingyun Chen

    Small   19 巻 ( 50 )   2023年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Metal–organic frameworks (MOFs) can be customized through modular assembly to achieve a wide range of potential applications, based on their desired functionality. However, most of the initially reported MOFs are limited to microporous systems and are not sufficiently stable, which restricts their popularization. Heterogeneity is introduced into a simple MOF framework to create MOF‐based heterostructures with fascinating properties and interesting functions. Heterogeneity can be introduced into the MOFs via postsynthetic/ligand exchange. Although the ligand exchange has shown potential, it is difficult to precisely control the degree of exchange or position. Among the various synthesis strategies, hierarchical assembly is particularly attractive for constructing MOF‐based heterostructures, as it can achieve precise regulation of MOF‐based heterostructured nanostructures. The hierarchical assembly significantly expands the compositional diversity of MOF‐based heterostructures, which has high elasticity for lattice matching during the epitaxial growth of MOFs. This review focuses on the synthetic evolution mechanism of hierarchical assemblies of MOF‐based nanoarchitectures. Subsequently, the precise control of pore structure, pore size, and morphology of MOF‐based nanoarchitectures by hierarchical assembly is emphasized. Finally, possible solutions to address the challenges associated with heterogeneous interfaces are presented, and potential opportunities for innovative applications are proposed.

    DOI: 10.1002/smll.202303884

  57. Materials Space‐Tectonics: Atomic‐level Compositional and Spatial Control Methodologies for Synthesis of Future Materials 査読有り

    Miharu Eguchi, Minsu Han, Yusuke Asakura, Jonathan P. Hill, Joel Henzie, Katsuhiko Ariga, Alan E. Rowan, Watcharop Chaikittisilp, Yusuke Yamauchi

    Angewandte Chemie International Edition   62 巻 ( 46 )   2023年8月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Reactions occurring at surfaces and interfaces necessitate the creation of well‐designed surface and interfacial structures. To achieve a combination of bulk material (i.e., framework) and void spaces, a meticulous process of “nano‐architecting” of the available space is necessary. Conventional porous materials such as mesoporous silica, zeolites, and metal–organic frameworks lack advanced cooperative functionalities owing to their largely monotonous pore geometries and limited conductivities. To overcome these limitations and develop functional structures with surface‐specific functions, the novel materials space‐tectonics methodology has been proposed for future materials synthesis. This review summarizes recent examples of materials synthesis based on designing building blocks (i.e., tectons) and their hybridization, along with practical guidelines for implementing materials syntheses and state‐of‐the‐art examples of practical applications. Lastly, the potential integration of materials space‐tectonics with emerging technologies, such as materials informatics, is discussed.

    DOI: 10.1002/anie.202307615

  58. Open‐Mouthed Hollow Carbons: Systematic Studies as Cobalt‐ and Nitrogen‐Doped Carbon Electrocatalysts for Oxygen Reduction Reaction 査読有り

    Yingji Zhao, Hiroki Nara, Dong Jiang, Toru Asahi, Sameh M. Osman, Jeonghun Kim, Jing Tang, Yusuke Yamauchi

    Small   19 巻 ( 48 )   2023年7月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Although hollow carbon structures have been extensively studied in recent years, their interior surfaces are not fully utilized due to the lack of fluent porous channels in the closed shell walls. This study presents a tailored design of open‐mouthed particles hollow cobalt/nitrogen‐doped carbon with mesoporous shells (OMH‐Co/NC), which exhibits sufficient accessibility and electroactivity on both the inner and outer surfaces. By leveraging the self‐conglobation effect of metal sulfate in methanol, a raspberry‐structured Zn/Co‐ZIF (R‐Zn/Co‐ZIF) precursor is obtained, which is further carbonized to fabricate the OMH‐Co/NC. In‐depth electrochemical investigations demonstrate that the introduction of open pores can enhance mass transfer and improve the utilization of the inner active sites. Benefiting from its unique structure, the resulting OMH‐Co/NC exhibits exceptional electrocatalytic oxygen reduction performance, achieving a half‐wave potential of 0.865 V and demonstrating excellent durability.

    DOI: 10.1002/smll.202304450

  59. Adjacent Copper Single Atoms Promote C–C Coupling in Electrochemical CO<sub>2</sub> Reduction for the Efficient Conversion of Ethanol 査読有り

    Wei Xia, Yijun Xie, Shuaiqiang Jia, Shitao Han, Ruijuan Qi, Tao Chen, Xueqing Xing, Ting Yao, Dawei Zhou, Xue Dong, Jianxin Zhai, Jingjing Li, Jianping He, Dong Jiang, Yusuke Yamauchi, Mingyuan He, Haihong Wu, Buxing Han

    Journal of the American Chemical Society   145 巻 ( 31 ) 頁: 17253 - 17264   2023年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/jacs.3c04612

  60. Construction of Three-Dimensional Dendritic Hierarchically Porous Metal–Organic Framework Nanoarchitectures via Noncentrosymmetric Pore–Induced Anisotropic Assembly 査読有り

    Tianyu Wu, Guangrui Chen, Ji Han, Ruigang Sun, Bin Zhao, Guiyuan Zhong, Yusuke Yamauchi, Buyuan Guan

    Journal of the American Chemical Society   145 巻 ( 30 ) 頁: 16498 - 16507   2023年7月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/jacs.3c03029

  61. A Self-Floating Robust Polyaniline-Wood Composite Fabricated by One-Step In-Situ Polymerization for High-Performance Solar Steam Generation 査読有り

    Taotao Meng, Zhengtong Li, Luzhen Wang, Kangjie Shi, Xiangting Bu, Saad M Alshehri, Yoshio Bando, Yusuke Yamauchi, Dagang Li, Xingtao Xu

    Bulletin of the Chemical Society of Japan   96 巻 ( 9 ) 頁: 907 - 912   2023年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Oxford University Press (OUP)  

    Abstract

    Owing to their cost-effectiveness and renewability, wood-based solar steam generators (WSSG) have gained prominence in the field of desalination and water purification. However, conventional bi-layered WSSG is limited by the high energy consumption of fabrication and low strength of the bonding interface, which makes them unsuitable for long-term applications. Here, a unique bi-layered structural composite with polyaniline (PANI) nanorods uniformly incorporated into a 3D mesoporous matrix of natural wood was fabricated via a one-step in-situ polymerization strategy. The PANI decorated wood (PANI-wood) shows ultrahigh sunlight absorptance (∼98.9%) over a broad wavelength range (200–2500 nm) due to the conjugation of coralloid PANI nanorods and wood. Moreover, numerous aligned wood microchannels enable constant and rapid water transport at the air-water interface under the pressure of capillary forces. The highly stable PANI-wood composite shows high potential as an ideal solar steam generator with a high evaporation rate of 1.62 kg m2 h−1, which is significantly higher than those of other previously reported wood-based bi-layered composites. Moreover, PANI-wood exhibits long-term floating and is chemically stable, making it a potential candidate for low-energy photothermal interfacial sewage purification.

    DOI: 10.1246/bcsj.20230145

  62. Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites 査読有り

    Yunqing Kang, Ovidiu Cretu, Jun Kikkawa, Koji Kimoto, Hiroki Nara, Asep Sugih Nugraha, Hiroki Kawamoto, Miharu Eguchi, Ting Liao, Ziqi Sun, Toru Asahi, Yusuke Yamauchi

    Nature Communications   14 巻 ( 1 )   2023年7月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media LLC  

    Abstract

    Multimetallic alloys (MMAs) with various compositions enrich the materials library with increasing diversity and have received much attention in catalysis applications. However, precisely shaping MMAs in mesoporous nanostructures and mapping the distributions of multiple elements remain big challenge due to the different reduction kinetics of various metal precursors and the complexity of crystal growth. Here we design a one-pot wet-chemical reduction approach to synthesize core–shell motif PtPdRhRuCu mesoporous nanospheres (PtPdRhRuCu MMNs) using a diblock copolymer as the soft template. The PtPdRhRuCu MMNs feature adjustable compositions and exposed porous structures rich in highly entropic alloy sites. The formation processes of the mesoporous structures and the reduction and growth kinetics of different metal precursors of PtPdRhRuCu MMNs are revealed. The PtPdRhRuCu MMNs exhibit robust electrocatalytic hydrogen evolution reaction (HER) activities and low overpotentials of 10, 13, and 28 mV at a current density of 10 mA cm<sup>−2</sup> in alkaline (1.0 M KOH), acidic (0.5 M H<sub>2</sub>SO<sub>4</sub>), and neutral (1.0 M phosphate buffer solution (PBS)) electrolytes, respectively. The accelerated kinetics of the HER in PtPdRhRuCu MMNs are derived from multiple compositions with synergistic interactions among various metal sites and mesoporous structures with excellent mass/electron transportation characteristics.

    DOI: 10.1038/s41467-023-39157-2

    その他リンク: https://www.nature.com/articles/s41467-023-39157-2

  63. Modulating Electronic Metal‐Support Interactions to Boost Visible‐Light‐Driven Hydrolysis of Ammonia Borane: Nickel‐Platinum Nanoparticles Supported on Phosphorus‐Doped Titania 査読有り

    Chao Wan, Gui Li, Jiapei Wang, Lixin Xu, Dang‐guo Cheng, Fengqiu Chen, Yusuke Asakura, Yunqing Kang, Yusuke Yamauchi

    Angewandte Chemie International Edition   62 巻 ( 40 )   2023年7月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Ammonia borane (AB) is a promising material for chemical H<sub>2</sub> storage owing to its high H<sub>2</sub> density (up to 19.6 wt %). However, the development of an efficient catalyst for driving H<sub>2</sub> evolution through AB hydrolysis remains challenging. Therefore, a visible‐light‐driven strategy for generating H<sub>2</sub> through AB hydrolysis was implemented in this study using Ni−Pt nanoparticles supported on phosphorus‐doped TiO<sub>2</sub> (Ni‐Pt/P‐TiO<sub>2</sub>) as photocatalysts. Through surface engineering, P‐TiO<sub>2</sub> was prepared by phytic‐acid‐assisted phosphorization and then employed as an ideal support for immobilizing Ni−Pt nanoparticles via a facile co‐reduction strategy. Under visible‐light irradiation at 283 K, Ni<sub>40</sub>Pt<sub>60</sub>/P‐TiO<sub>2</sub> exhibited improved recyclability and a high turnover frequency of 967.8 mol mol<sub>Pt</sub><sup>−1</sup> min<sup>−1</sup>. Characterization experiments and density functional theory calculations indicated that the enhanced performance of Ni<sub>40</sub>Pt<sub>60</sub>/P‐TiO<sub>2</sub> originated from a combination of the Ni−Pt alloying effect, the Mott–Schottky junction at the metal‐semiconductor interface, and strong metal‐support interactions. These findings not only underscore the benefits of utilizing multipronged effects to construct highly active AB‐hydrolyzing catalysts, but also pave a path toward designing high‐performance catalysts by surface engineering to modulate the electronic metal‐support interactions for other visible‐light‐induced reactions.

    DOI: 10.1002/anie.202305371

  64. Ni-single atom decorated mesoporous carbon electrocatalysts for hydrogen evolution reaction 査読有り

    Jin Woo Park, Godeung Park, Minjun Kim, Minsu Han, Jieun Jang, Yusuke Yamauchi, Brian Yuliarto, Peter Krüger, Jeonghun Kim, Nochang Park, Hyunsoo Lim

    Chemical Engineering Journal   468 巻   頁: 143733 - 143733   2023年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.143733

  65. Nanoarchitectonics of Metallene Materials for Electrocatalysis 査読有り

    Bo Jiang, Yanna Guo, Fengyu Sun, Shengyao Wang, Yunqing Kang, Xingtao Xu, Jingjing Zhao, Jungmok You, Miharu Eguchi, Yusuke Yamauchi, Hexing Li

    ACS Nano   17 巻 ( 14 ) 頁: 13017 - 13043   2023年6月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.3c01380

  66. Porous and Partially Dehydrogenated Fe<sup>2+</sup>‐Containing Iron Oxyhydroxide Nanosheets for Efficient Electrochemical Nitrogen Reduction Reaction (ENRR) 査読有り

    Lulu Jia, Hairong Xue, Fang Xian, Yoshiyuki Sugahara, Nobuyuki Sakai, Jingbo Nan, Yusuke Yamauchi, Takayoshi Sasaki, Renzhi Ma

    Small   19 巻 ( 42 )   2023年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    The design and development of efficient catalysts for electrochemical nitrogen reduction reaction (ENRR) under ambient conditions are critical for the alternative ammonia (NH<sub>3</sub>) synthesis from N<sub>2</sub> and H<sub>2</sub>O, wherein iron‐based electrocatalysts exhibit outstanding NH<sub>3</sub> formation rate and Faradaic efficiency (FE). Here, the synthesis of porous and positively charged iron oxyhydroxide nanosheets by using layered ferrous hydroxide as a starting precursor, which undergoes topochemical oxidation, partial dehydrogenated reaction, and final delamination, is reported. As the electrocatalyst of ENRR, the obtained nanosheets with a monolayer thickness and 10‐nm mesopores display exceptional NH<sub>3</sub> yield rate (28.5 µg h<sup>−1</sup> mg<sub>cat.</sub><sup>−1</sup>) and FE (13.2%) at a potential of −0.4 V versus RHE in a phosphate buffered saline (PBS) electrolyte. The values are much higher than those of the undelaminated bulk iron oxyhydroxide. The larger specific surface area and positive charge of the nanosheets are beneficial for providing more exposed reactive sites as well as retarding hydrogen evolution reaction. This study highlights the rational control on the electronic structure and morphology of porous iron oxyhydroxide nanosheets, expanding the scope of developing non‐precious iron‐based highly efficient ENRR electrocatalysts.

    DOI: 10.1002/smll.202303221

  67. Mesoporous Semiconductive Bi<sub>2</sub>Se<sub>3</sub> Films 査読有り

    Tomota Nagaura, Aditya Ashok, Azhar Alowasheeir, Arya Vasanth, Minsu Han, Yusuke Yamauchi

    Nano Letters   23 巻 ( 12 ) 頁: 5424 - 5429   2023年6月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acs.nanolett.3c00183

  68. Cyano-functionalized ionic porous polymer: A novel adsorbent for effectively enriching trace estrogens in water and milk 査読有り

    Zixuan Cai, Xin Zhou, Yushi Yang, Jie Li, Weihua Liu, Qianqian Wang, Lin Hao, Zhi Wang, Yusuke Yamauchi, Jungmok You, Shuaihua Zhang, Qiuhua Wu, Chun Wang

    Chemical Engineering Journal   466 巻   頁: 143315 - 143315   2023年6月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.143315

  69. Hybrid of pyrazine based π-conjugated organic molecule and MXene for hybrid capacitive deionization 査読有り

    Zeqiu Chen, Xingtao Xu, Kai Wang, Dong Jiang, Fanyue Meng, Ting Lu, Yusuke Yamauchi, Likun Pan

    Separation and Purification Technology   315 巻   頁: 123628 - 123628   2023年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.seppur.2023.123628

  70. Molecular insights into enhanced water evaporation from a hybrid nanostructured surface with hydrophilic and hydrophobic domains 査読有り

    Zequn Wang, Meng An, Dongsheng Chen, Yuejin Yuan, Xingtao Xu, Swellam W. Sharshir, Brian Yuliarto, Fengbo Zhu, Xuhui Sun, Shan Gao, Yusuke Yamauchi

    Chemical Engineering Journal   465 巻   頁: 142838 - 142838   2023年6月

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    担当区分:最終著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.142838

  71. Magnetic Covalent Organic Framework Composites for Wastewater Remediation 査読有り

    Juan Yang, Lijin Huang, Jungmok You, Yusuke Yamauchi

    Small   19 巻 ( 37 )   2023年5月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Covalent organic frameworks (COFs) with high specific surface area, tailored structure, easy functionalization, and excellent chemical stability have been extensively exploited as fantastic materials in various fields. However, in most cases, COFs prepared in powder form suffer from the disadvantages of tedious operation, strong tendency to agglomerate, and poor recyclability, greatly limiting their practical application in environmental remediation. To tackle these issues, the fabrication of magnetic COFs (MCOFs) has attracted tremendous attention. In this review, several reliable strategies for the fabrication of MCOFs are summarized. In addition, the recent application of MCOFs as outstanding adsorbents for the removal of contaminants including toxic metal ions, dyes, pharmaceuticals and personal care products, and other organic pollutants is discussed. Moreover, in‐depth discussions regarding the structural parameters affecting the practical potential of MCOFs are highlighted in detail. Finally, the current challenges and future prospects of MCOFs in this field are provided with the expectation to boost their practical application.

    DOI: 10.1002/smll.202301044

  72. Engineering Route for Stretchable, 3D Microarchitectures of Wide Bandgap Semiconductors for Biomedical Applications 査読有り

    Thanh‐An Truong, Tuan Khoa Nguyen, Xinghao Huang, Aditya Ashok, Sharda Yadav, Yoonseok Park, Mai Thanh Thai, Nhat‐Khuong Nguyen, Hedieh Fallahi, Shuhua Peng, Sima Dimitrijev, Yi‐Chin Toh, Yusuke Yamauchi, Chun Hui Wang, Nigel Hamilton Lovell, John A. Rogers, Thanh Nho Do, Nam‐Trung Nguyen, Hangbo Zhao, Hoang‐Phuong Phan

    Advanced Functional Materials   33 巻 ( 34 )   2023年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Wide bandgap (WBG) semiconductors have attracted significant research interest for the development of a broad range of flexible electronic applications, including wearable sensors, soft logical circuits, and long‐term implanted neuromodulators. Conventionally, these materials are grown on standard silicon substrates, and then transferred onto soft polymers using mechanical stamping processes. This technique can retain the excellent electrical properties of wide bandgap materials after transfer and enables flexibility; however, most devices are constrained by 2D configurations that exhibit limited mechanical stretchability and morphologies compared with 3D biological systems. Herein, a stamping‐free micromachining process is presented to realize, for the first time, 3D flexible and stretchable wide bandgap electronics. The approach applies photolithography on both sides of free‐standing nanomembranes, which enables the formation of flexible architectures directly on standard silicon wafers to tailor the optical transparency and mechanical properties of the material. Subsequent detachment of the flexible devices from the support substrate and controlled mechanical buckling transforms the 2D precursors of wide band gap semiconductors into complex 3D mesoscale structures. The ability to fabricate wide band gap materials with 3D architectures that offer device‐level stretchability combined with their multi‐modal sensing capability will greatly facilitate the establishment of advanced 3D bio‐electronics interfaces.

    DOI: 10.1002/adfm.202211781

  73. Nanoarchitectonics of Hollow Covalent Organic Frameworks: Synthesis and Applications 査読有り

    Lijin Huang, Juan Yang, Yusuke Asakura, Qin Shuai, Yusuke Yamauchi

    ACS Nano   17 巻 ( 10 ) 頁: 8918 - 8934   2023年5月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.3c01758

  74. Synthesis of a Hybrid Composed of Anisotropic Niobate Layers Modified with MoC Nanoparticles 査読有り

    Meilin Du, Yusuke Asakura, Takuma Kamibe, Yusuke Yamauchi, Yoshiyuki Sugahara

    Chemistry – A European Journal   29 巻 ( 33 )   2023年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    The hybrid composed of anisotropic niobate layers modified with MoC nanoparticles is synthesized by multistep reactions. The stepwise interlayer reactions for layered hexaniobate induce selective surface modification at the alternate interlayers, and the following ultrasonication leads to the formation of double‐layered nanosheets. The further liquid phase MoC deposition with the double‐layered nanosheets leads to the decoration of MoC nanoparticles on the surfaces of the double‐layered nanosheets. The new hybrid can be regarded as a stacking of the two layers with anisotropically modified nanoparticles. The relatively high temperature in the MoC synthesis causes partial leaching of the grafted phosphonate groups. The exposed surface of the niobate nanosheets due to the partial leaching may interact with MoC to succeed in the hybridization. The hybrid after heating exhibits photocatalytic activity, indicating that this hybridization method can be useful for hybrid synthesis of semiconductor nanosheets and co‐catalyst nanoparticles toward photocatalytic application.

    DOI: 10.1002/chem.202300218

  75. Carbon nanotube-decorated hierarchical porous nickel/carbon hybrid derived from nickel-based metal-organic framework for enhanced methyl blue adsorption 査読有り

    Ping Cheng, Xiaohan Wang, Josua Markus, Md Abdul Wahab, Silvia Chowdhury, Ruijing Xin, Saad M. Alshehri, Yoshio Bando, Yusuke Yamauchi, Yusuf Valentino Kaneti

    Journal of Colloid and Interface Science   638 巻   頁: 220 - 230   2023年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.jcis.2023.01.075

  76. Intermetallic Compound TiM (M=Co, Fe) with a Layered Structure Prepared by Deoxidizing Ilmenite‐type Oxides in Molten LiCl‐CaH<sub>2</sub> Mixtures 査読有り

    Yasukazu Kobayashi, Tomota Nagaura, Azhar Alowasheeir, Shohei Tada, Yusuke Yamauchi

    Chemistry – A European Journal   29 巻 ( 32 )   2023年4月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    CsCl‐type intermetallic compounds TiM (M=Co, Fe) were obtained by deoxidizing trigonal ilmenite‐type MTiO<sub>3</sub> with a reducing agent CaH<sub>2</sub> in molten LiCl at 600 °C. X‐ray diffraction, nitrogen adsorption, scanning electron microscopy, and transmission electron microscopy with energy‐dispersive X‐ray, and X‐ray photoelectron spectroscopy analyses revealed the formation of nanoscale layered structures, which enhanced specific surface areas (approximately 20 m<sup>2</sup>/g) in the intermetallic compounds. In the initial deoxidation stage, Li<sub>2</sub>TiO<sub>3</sub>‐like compounds were observed as an intermediate, suggesting the substitution of M in MTiO<sub>3</sub> by Li from the molten LiCl. Compound MTiO<sub>3</sub> has a layered structure perpendicular to the c axis of the trigonal structure, suggesting that the layered structures may originate from the crystal structure of the precursors. Formation of the Li<sub>2</sub>TiO<sub>3</sub>‐like intermediate may help maintain the original layered structure during deoxidation and the subsequent alloying at temperatures as low as 600 °C.

    DOI: 10.1002/chem.202300194

  77. Mesostructured Silica Nanoparticles with Organic Corrosion Inhibitors to Enhance the Longevity of Anticorrosion Effect 査読有り

    Minjun Kim, Piyali Bhanja, Nasim Amiralian, Chihiro Urata, Atsushi Hozumi, Md Shahriar A Hossain, Saad M Alshehri, Yoshio Bando, Tansir Ahamad, Yusuke Yamauchi

    Bulletin of the Chemical Society of Japan   96 巻 ( 4 ) 頁: 394 - 397   2023年4月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Oxford University Press (OUP)  

    Abstract

    In this study, a specific organosilane molecule (octadecyldimethyl(3-trimethoxysilylpropyl)ammonium) is used to form soft-templates that store organic corrosion inhibitors (tolytriazole), and chemically anchor to silica surface during a sol-gel process. As the anchored soft-templates in the resulting mesostructured silica are not removed, it successfully achieves an environmental-friendly synthetic method and a prolonged storage of tolyriazole. Coating of a copper substrate with the mesostructured silica embedding tolytriazole, therefore, endows a prolonged anticorrosion effect.

    DOI: 10.1246/bcsj.20230004

  78. Unlocking Enhanced Capacitive Deionization of NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>/Carbon Materials by the Yolk–Shell Design 査読有り

    Xiaohong Liu, Xingtao Xu, Xiaoxu Xuan, Wei Xia, Guilin Feng, Shuaihua Zhang, Zhen-Guo Wu, Benhe Zhong, Xiaodong Guo, Keyu Xie, Yusuke Yamauchi

    Journal of the American Chemical Society   145 巻 ( 16 ) 頁: 9242 - 9253   2023年4月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/jacs.3c01755

  79. Principles of Design and Synthesis of Metal Derivatives from MOFs 査読有り

    Thibault De Villenoisy, Xiaoran Zheng, Vienna Wong, Sajjad S. Mofarah, Hamidreza Arandiyan, Yusuke Yamauchi, Pramod Koshy, Charles C. Sorrell

    Advanced Materials   35 巻 ( 24 )   2023年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Materials derived from metal–organic frameworks (MOFs) have demonstrated exceptional structural variety and complexity and can be synthesized using low‐cost scalable methods. Although the inherent instability and low electrical conductivity of MOFs are largely responsible for their low uptake for catalysis and energy storage, a superior alternative is MOF‐derived metal‐based derivatives (MDs) as these can retain the complex nanostructures of MOFs while exhibiting stability and electrical conductivities of several orders of magnitude higher. The present work comprehensively reviews MDs in terms of synthesis and their nanostructural design, including oxides, sulfides, phosphides, nitrides, carbides, transition metals, and other minor species. The focal point of the approach is the identification and rationalization of the design parameters that lead to the generation of optimal compositions, structures, nanostructures, and resultant performance parameters. The aim of this approach is to provide an inclusive platform for the strategies to design and process these materials for specific applications. This work is complemented by detailed figures that both summarize the design and processing approaches that have been reported and indicate potential trajectories for development. The work is also supported by comprehensive and up‐to‐date tabular coverage of the reported studies.

    DOI: 10.1002/adma.202210166

  80. Plasmon-Triggered Ultrafast Operation of Color Centers in Hexagonal Boron Nitride Layers 査読有り

    Vasilios Karanikolas, Takuya Iwasaki, Joel Henzie, Naoki Ikeda, Yusuke Yamauchi, Yutaka Wakayama, Takashi Kuroda, Kenji Watanabe, Takashi Taniguchi

    ACS Omega   8 巻 ( 16 ) 頁: 14641 - 14647   2023年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsomega.3c00512

  81. Selective Detection of Toxic C1 Chemicals Using a Hydroxylamine-Based Chemiresistive Sensor Array 査読有り

    Mandeep K. Chahal, Masato Sumita, Jan Labuta, Daniel T. Payne, Jonathan P. Hill, Yusuke Yamauchi, Takashi Nakanishi, Takeshi Tanaka, Hiromichi Kataura, Kenji Koga, Hiroyuki Miyamura, Yoshihiro Kon, Dachao Hong, Shinsuke Ishihara

    ACS Sensors   8 巻 ( 4 ) 頁: 1585 - 1592   2023年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acssensors.2c02720

  82. Weak Bonds, Strong Effects: Enhancing the Separation Performance of UiO-66 toward Chlorobenzenes via Halogen Bonding 査読有り

    Roman Gulyaev, Oleg Semyonov, Georgy V. Mamontov, Alexey A. Ivanov, Daniil M. Ivanov, Minjun Kim, Václav Švorčík, Giuseppe Resnati, Ting Liao, Ziqi Sun, Yusuke Yamauchi, Pavel S. Postnikov, Olga Guselnikova

    ACS Materials Letters   5 巻 ( 5 ) 頁: 1340 - 1349   2023年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsmaterialslett.2c01169

  83. Unveiling the effect of structural water on Zn-ion storage of polyoxovanadate for high-rate and long-life aqueous zinc ion battery 査読有り

    Huan He, Fu-Chun Pan, Xue-Wei Liang, Qiang Hu, Shude Liu, Jisong Hu, Seong Chan Jun, Dunmin Lin, Yusuke Yamauchi, Yu Huo

    Chemical Engineering Journal   462 巻   頁: 142221 - 142221   2023年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.142221

  84. Monolithic Covalent Organic Frameworks with Hierarchical Architecture: Attractive Platform for Contaminant Remediation 査読有り

    Lijin Huang, Juan Yang, Yingji Zhao, Hirokatsu Miyata, Minsu Han, Qin Shuai, Yusuke Yamauchi

    Chemistry of Materials   35 巻 ( 7 ) 頁: 2661 - 2682   2023年3月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acs.chemmater.2c03282

  85. Metal‐Organic Framework Materials in Perovskite Solar Cells: Recent Advancements and Perspectives 査読有り

    Yuxuan Ye, Yongqi Yin, Yan Chen, Shuang Li, Lin Li, Yusuke Yamauchi

    Small   19 巻 ( 25 )   2023年3月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Organic–inorganic hybrid perovskite solar cells (PSCs) are among the most promising candidates for the next generation of photovoltaic devices because of the significant increase in their power conversion efficiency (PCE) from less than 10% to 25.7% in past decade. The metal‐organic framework (MOF) materials owing to their unique properties, such as large specific surface area, abundant binding sites, adjustable nanostructures, and synergistic effects, are used as additives or functional layers to enhance the device performance and long‐term stability of PSCs. This review focuses on the recent advancements in the applications of MOFs as/in different functional layers of PSCs. The photovoltaic performance, impact, and advantages of MOF materials integrated into the perovskite absorber, electron transport layer, hole transport layer, and interfacial layer are reviewed. In addition, the applicability of MOFs to mitigate leakage of Pb<sup>2+</sup> from halide perovskites and corresponding devices is discussed. This review concludes with the perspectives on further research directions for employing MOFs in PSCs.

    DOI: 10.1002/smll.202208119

    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/smll.202208119

  86. Noble-Metal–Metalloid Alloy Architectures: Mesoporous Amorphous Iridium–Tellurium Alloy for Electrochemical N<sub>2</sub> Reduction 査読有り

    Bo Jiang, Hairong Xue, Pei Wang, Haoran Du, Yunqing Kang, Jingjing Zhao, Shengyao Wang, Wei Zhou, Zhenfeng Bian, Hexing Li, Joel Henzie, Yusuke Yamauchi

    Journal of the American Chemical Society   145 巻 ( 11 ) 頁: 6079 - 6086   2023年3月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/jacs.2c10637

  87. A universal strategy for large-scale and controlled fabrication of conductive mesoporous polymer monolayers 査読有り

    Facai Wei, Bowen Chen, Jianwei Fu, Qingguo He, Chengbin Jing, Jiangong Cheng, Miharu Eguchi, Jongbeom Na, Yusuke Yamauchi, Shaohua Liu

    Chemical Engineering Journal   460 巻   頁: 141504 - 141504   2023年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2023.141504

  88. Sodium preintercalation-induced oxygen-deficient hydrated potassium manganese oxide for high-energy flexible Mg-ion supercapacitors 査読有り

    Shude Liu, Ling Kang, Jian Zhang, Seong Chan Jun, Yusuke Yamauchi

    NPG Asia Materials   15 巻 ( 1 )   2023年2月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media LLC  

    Abstract

    Layered potassium manganese oxides are promising candidates for use in aqueous supercapacitors owing to their wide potential windows, layered feature, and Faradaic redox reactions that occur on surfaces and in bulk regions. However, the practical application is hindered by rapid performance degradation due to their inherently low electrical conductivities and inferior structural stabilities. Here, we develop ultralong nanobelts comprising hydrated Na-intercalated oxygen-deficient potassium manganese oxide (H-Na-D-KMO), in which the Na<sup>+</sup> ions are preintercalated and synchronously induce the generation of oxygen vacancies, as high-energy-density and durable electrodes for Mg-ion supercapacitors. The experimental results indicated that preintercalation of Na<sup>+</sup> ions and formation of oxygen vacancies improved the electrical properties and ion diffusion, which accounted for the fast reaction kinetics and good cycling performance of H-Na-D-KMO. The optimized H-Na-D-KMO delivered a significantly enhanced specific capacitance and cycling performance compared to those of pure H-KMO. Asymmetric supercapacitors with H-Na-D-KMO as the cathode and as-prepared MoO<sub>2</sub>@carbon as the anode exhibited an ultrahigh energy density of 108.4 Wh kg<sup>–1</sup> at 11,000 Wh kg<sup>−1</sup>, which is superior to most supercapacitors reported in the literature. Moreover, the assembled device exhibited good cycling stability for over 5000 cycles with a fading rate of 0.002% per cycle and good mechanical flexibility, which opens an avenue for further advancements in high-energy supercapacitors.

    DOI: 10.1038/s41427-022-00450-z

    その他リンク: https://www.nature.com/articles/s41427-022-00450-z

  89. Monolayer Iron and Iron-Rich Hydroxide Nanosheets Exfoliated from High-Quality Green Rust for Enhanced Electrocatalytic Oxygen Evolution Reaction 査読有り

    Lulu Jia, Fang Xian, Yoshiyuki Sugahara, Nobuyuki Sakai, Emmanuel Picheau, Hairong Xue, Yusuke Yamauchi, Takayoshi Sasaki, Renzhi Ma

    Chemistry of Materials   35 巻 ( 4 ) 頁: 1769 - 1779   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acs.chemmater.2c03639

  90. Uncovering the Role of Chemical and Electronic Structures in Plasmonic Catalysis: The Case of Homolysis of Alkoxyamines 査読有り

    Darya Votkina, Pavel Petunin, Elena Miliutina, Andrii Trelin, Oleksiy Lyutakov, Vaclav Svorcik, Gérard Audran, Jeffrey Havot, Rashid Valiev, Lenara I. Valiulina, Jean-Patrick Joly, Yusuke Yamauchi, Junais Habeeb Mokkath, Joel Henzie, Olga Guselnikova, Sylvain R. A. Marque, Pavel Postnikov

    ACS Catalysis   13 巻 ( 5 ) 頁: 2822 - 2833   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acscatal.2c04685

  91. Au-Loaded Superparamagnetic Mesoporous Bimetallic CoFeB Nanovehicles for Sensitive Autoantibody Detection 査読有り

    Yunqing Kang, Mostafa Kamal Masud, Yanna Guo, Yingji Zhao, Zakia Sultana Nishat, Jingjing Zhao, Bo Jiang, Yoshiyuki Sugahara, Tanja Pejovic, Terry Morgan, Md Shahriar A. Hossain, Hexing Li, Carlos Salomon, Toru Asahi, Yusuke Yamauchi

    ACS Nano   17 巻 ( 4 ) 頁: 3346 - 3357   2023年2月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.2c07694

  92. Auto-programmed construction of an iron-incorporated cobalt-molybdenum complex towards enhanced electrocatalytic water oxidation 査読有り

    Yanna Guo, Yunqing Kang, Takuma Kamibe, Bo Jiang, Yusuke Yamauchi, Yoshiyuki Sugahara

    Chemical Engineering Journal   457 巻   頁: 140464 - 140464   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2022.140464

  93. Interfacial coupled engineering of plasmonic amorphous MoO3-x nanodots/g-C3N4 nanosheets for photocatalytic water splitting and photothermal conversion 査読有り

    Yumei Ren, Desheng Feng, Zhiming Yan, Zixu Sun, Zixuan Zhang, Dongwei Xu, Chong Qiao, Zhonghui Chen, Yu Jia, Seong Chan Jun, Shude Liu, Yusuke Yamauchi

    Chemical Engineering Journal   453 巻   頁: 139875 - 139875   2023年2月

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    担当区分:最終著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2022.139875

  94. Design of hyper-cross-linked polymers with tunable polarity for effective preconcentration of aflatoxins in grain 査読有り

    Qianqian Wang, Shuaihua Zhang, Zhi Li, Zhi Wang, Chun Wang, Saad M. Alshehri, Yoshio Bando, Yusuke Yamauchi, Qiuhua Wu

    Chemical Engineering Journal   453 巻   頁: 139544 - 139544   2023年2月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2022.139544

  95. Cobalt phthalocyanine-based conjugated polymer as efficient and exclusive electrocatalyst for CO2 reduction to ethanol 査読有り

    Dong Jiang, Ran Bu, Wei Xia, Yichen Hu, Mengchen Zhou, Enqing Gao, Toru Asahi, Yusuke Yamauchi, Jing Tang

    Materials Reports: Energy   3 巻 ( 1 ) 頁: 100176 - 100176   2023年2月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.matre.2023.100176

  96. β-FeOOH Nanospindles as Chloride-Capturing Electrodes for Electrochemical Faradic Deionization of Saline Water 査読有り

    Lu Zhang, Harry Lye Hin Chong, Pak Yan Moh, Munirah D Albaqami, Ammar Mohamed Tighezza, Chengjin Qin, Xinyi Ni, Jing Cao, Xingtao Xu, Yusuke Yamauchi

    Bulletin of the Chemical Society of Japan   96 巻 ( 3 ) 頁: 306 - 309   2023年1月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Oxford University Press (OUP)  

    Abstract

    Electrochemical faradic deionization (EDI), one of the most promising research branches of capacitive deionization (CDI), has demonstrated considerable potential for water desalination and ion removal (particularly at medium to low salinity). However, the associated relatively slow anion-capturing kinetics have limited the practical applications of EDI. Based on several studies, researchers have attributed this slow anion-capturing rate to the sluggish conversion-reaction-induced anion-capturing process (as most anion-capturing electrodes belong to the conversion type). Herein, we report a strategy for accelerating the anion-capturing process to enhance the desalination rate of EDI by utilizing an intercalation-type FeOOH electrode. The chloride-driven EDI system equipped with hollandite-type FeOOH nanospindles is found to present a high desalination rate (up to 4.44 mg g−1 min−1) and desalination capacity (51.77 mg g−1). The current study can inspire the future design of ultrafast EDI systems and bring the EDI technique closer to its practical application.

    DOI: 10.1246/bcsj.20220274

  97. Extraordinary Acceleration of an Electrophilic Reaction Driven by the Polar Surface of 2D Aluminosilicate Nanosheets 査読有り

    Nagy L. Torad, Yuta Tsuji, Azhar Alowasheeir, Masako Momotake, Kazuki Okazawa, Kazunari Yoshizawa, Michio Matsumoto, Masafumi Yamato, Yusuke Yamauchi, Miharu Eguchi

    Small   19 巻 ( 11 )   2023年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    To increase chemical reaction rates, general solutions include increasing the concentration/temperature and introducing catalysts. In this study, the rate constant of an electrophilic metal coordination reaction is accelerated 23‐fold on the surface of layered aluminosilicate (LAS), where the reaction substrate (ligand molecule) induces dielectric polarization owing to the polar and anionic surface. According to the Arrhenius plot, the frequency factor (A) is increased by almost three orders of magnitude on the surface. This leads to the conclusion that the collision efficiency between the ligands and metal ions is enhanced on the surface due to the dielectric polarization. This is surprising because one side of the ligand is obscured by the surface, so the collision efficiency is expected to be decreased. This unique method to accelerate the chemical reaction is expected to expand the range of utilization of LASs, which are chemically inert, abundant, and environmentally friendly. The concept is also applicable to other metal oxides which have polar surfaces, which will be useful for various chemical reactions in the future.

    DOI: 10.1002/smll.202205857

    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/smll.202205857

  98. Optimizing Heterointerface of Co<sub>2</sub>P–Co<sub><i>x</i></sub>O<sub><i>y</i></sub> Nanoparticles within a Porous Carbon Network for Deciphering Superior Water Splitting 査読有り

    Guo Huang, Miao Hu, Xingtao Xu, Asma A. Alothman, Mohammed Sheikh Saleh Mushab, Shaojian Ma, Pei Kang Shen, Jinliang Zhu, Yusuke Yamauchi

    Small Structures   4 巻 ( 6 )   2023年1月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    It is of great significance to design a bifunctional electrocatalyst for promoting hydrogen (HER) and oxygen (OER) evolution reactions simultaneously. Herein, inspired by the appropriate H atom binding energy on cobalt phosphides and excellent oxygen evolution kinetics on cobalt oxides, the regulative synthesis of a Co<sub>2</sub>P–Co<sub>x</sub>O<sub>y</sub> (Co<sub>x</sub>O<sub>y</sub> = CoO or Co<sub>3</sub>O<sub>4</sub>) heterogeneous nanoparticle‐anchored porous carbon network electrocatalyst via one‐pot heat treatment is reported. The as‐synthesized Co<sub>2</sub>P–Co<sub>3</sub>O<sub>4</sub>/C exhibits superior electrochemical activity with low overpotentials of 86 mV for HER and 246 mV for OER at 10 mA cm<sup>−2</sup> in an alkaline electrolyte. Moreover, compared to the commercial Pt/C || RuO<sub>2</sub>/C system, the Co<sub>2</sub>P–Co<sub>3</sub>O<sub>4</sub>/C || Co<sub>2</sub>P–Co<sub>3</sub>O<sub>4</sub>/C system presents outstanding activity toward overall water splitting (1.55 V@10 mA cm<sup>−2</sup>), which is well maintained over long‐term (120 h) electrocatalysis. Density functional theory calculations show that the rich interfaces between Co<sub>2</sub>P and Co<sub>3</sub>O<sub>4</sub> offer a synergistic effect, which enables Co<sub>2</sub>P–Co<sub>3</sub>O<sub>4</sub>/C as an excellent electrocatalyst toward both HER and OER.

    DOI: 10.1002/sstr.202200235

    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/sstr.202200235

  99. Efficient electrocatalysis for oxygen evolution: W-doped NiFe nanosheets with oxygen vacancies constructed by facile electrodeposition and corrosion 査読有り

    Huixi Li, Chenyang Zhang, Weijun Xiang, Mohammed A. Amin, Jongbeom Na, Shengping Wang, Jingxian Yu, Yusuke Yamauchi

    Chemical Engineering Journal   452 巻   頁: 139104 - 139104   2023年1月

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    担当区分:最終著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2022.139104

  100. Green synthesis of carbon quantum dots toward highly sensitive detection of formaldehyde vapors using QCM sensor 査読有り

    Mohamad M. Ayad, Mona E. Abdelghafar, Nagy L. Torad, Yusuke Yamauchi, Wael A. Amer

    Chemosphere   312 巻   頁: 137031 - 137031   2023年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.chemosphere.2022.137031

  101. MOF-Derived nanoarchitectured carbons in wood sponge enable solar-driven pumping for high-efficiency soil water extraction 査読有り

    Taotao Meng, Zhengtong Li, Zhangmin Wan, Jing Zhang, Luzhen Wang, Kangjie Shi, Xiangting Bu, Saad M. Alshehri, Yoshio Bando, Yusuke Yamauchi, Dagang Li, Xingtao Xu

    Chemical Engineering Journal   452 巻   頁: 139193 - 139193   2023年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2022.139193

  102. Significant enhancement in hydrogen evolution rate of 2D bismuth oxychloride lamellar membrane photocatalyst with cellulose nanofibers 査読有り

    Weiming Zhou, Zequn Wang, Hongqiang Huang, Yiting Wu, Asma A. Alothman, Mohamed Ouladsmane, Yusuke Yamauchi, Xingtao Xu, Meng An, Liwei Wang, Zhanhui Yuan

    Chemical Engineering Journal   456 巻   頁: 140933 - 140933   2023年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cej.2022.140933

  103. Metal–organic framework derivatives for promoted capacitive deionization of oxygenated saline water 査読有り

    Xingtao Xu, Miharu Eguchi, Yusuke Asakura, Likun Pan, Yusuke Yamauchi

    Energy &amp; Environmental Science   16 巻 ( 5 ) 頁: 1815 - 1820   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    Metal–organic framework (MOF) derivatives, such as pyrolytic carbons, pyrolytic metal-containing carbons, and MOF-based hybrids, have been designed to replace conventionally used carbon materials for promoting capacitive deionization performance.

    DOI: 10.1039/d2ee03530h

  104. Insights into alloy/oxide or hydroxide interfaces in Ni–Mo-based electrocatalysts for hydrogen evolution under alkaline conditions 査読有り

    Min Luo, Jietian Yang, Xingang Li, Miharu Eguchi, Yusuke Yamauchi, Zhong-Li Wang

    Chemical Science   14 巻 ( 13 ) 頁: 3400 - 3414   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    The activity of Ni–Mo catalysts for the hydrogen evolution reaction originates from the interfaces of alloy–oxide or alloy–hydroxide, in which the oxide or hydroxide promotes water dissociation and the alloy accelerates hydrogen combination.

    DOI: 10.1039/d2sc06298d

  105. Enlarging the porosity of metal–organic framework-derived carbons for supercapacitor applications by a template-free ethylene glycol etching method 査読有り

    Ruijing Xin, Minjun Kim, Ping Cheng, Aditya Ashok, Silvia Chowdhury, Teahoon Park, Azhar Alowasheeir, Md. Shahriar Hossain, Jing Tang, Jin Woo Yi, Yusuke Yamauchi, Yusuf Valentino Kaneti, Jongbeom Na

    Journal of Materials Chemistry A   11 巻 ( 24 ) 頁: 12759 - 12769   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    Enlargement of micropores in zeolitic imidazolate framework particles into mesopores is achieved via an ethylene glycol-assisted aqueous etching method. The etched carbon shows a higher specific capacitance than unetched one at high scan rates.

    DOI: 10.1039/d2ta06307g

  106. Design of trifunctional catalysts for promoting sequential condensation, deoxygenation, and aromatization of pyrolyzed mixed waste 査読有り

    Mohamed H. M. Ahmed, Nuno Batalha, Mohammad Rezaul Karim, Ibrahim Abdullah Alnaser, Yusuke Yamauchi, Yusuf Valentino Kaneti, Muxina Konarova

    Journal of Materials Chemistry A   11 巻 ( 26 ) 頁: 14404 - 14415   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    The trifunctional catalysts, Mg–Pt/meso-ZSM and Mg–Ni/meso-ZSM exhibit a higher increase in oil yield and enhanced selectivity toward alkenes and alkanes in oil than commercial ZSM-5 catalyst.

    DOI: 10.1039/d3ta01368e

  107. Core–shell 2D nanoarchitectures: engineering N, P-doped graphitic carbon/MXene heterostructures for superior capacitive deionization 査読有り

    Ying Zhang, Haolin Li, Qian Yang, Shuaihua Zhang, Bin Zhao, Jingyu Wu, Ningzhao Shang, Xiaoxian Zhao, Zhichang Xiao, Xiaohuan Zang, Jeonghun Kim, Xingtao Xu, Yusuke Yamauchi

    Journal of Materials Chemistry A   11 巻 ( 26 ) 頁: 14356 - 14365   2023年

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    N, P-doped graphitic carbon/MXene heterostructures were constructed for advanced capacitive deionization electrodes, yielding superior salt adsorption capacity, rapid removal rate, and excellent cycling stability.

    DOI: 10.1039/d3ta00696d

  108. Composite polymer electrolytes with ionic liquid grafted-Laponite for dendrite-free all-solid-state lithium metal batteries 査読有り

    Biyu Jin, Dongyun Wang, Yuan He, Jianjiang Mao, Yunqing Kang, Chao Wan, Wei Xia, Jeonghun Kim, Miharu Eguchi, Yusuke Yamauchi

    Chemical Science   14 巻 ( 29 ) 頁: 7956 - 7965   2023年

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    A composite polymer electrolyte with ionic liquid grafted-LAP exhibits high conductivity and mechanical strength, contributing to dendrite-free all-solid-state lithium metal batteries.

    DOI: 10.1039/d3sc01647a

  109. A phenazine-conjugated microporous polymer-based quartz crystal microbalance for sensitive detection of formaldehyde vapors at room temperature: an experiment and density functional theory study 査読有り

    Mohammed G. Kotp, Nagy L. Torad, Johann Lüder, Ahmed A. M. El-Amir, Watcharop Chaikittisilp, Yusuke Yamauchi, Ahmed F. M. EL-Mahdy

    Journal of Materials Chemistry A   11 巻 ( 2 ) 頁: 764 - 774   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    Conjugated microporous polymers (CMPs) are a prospective class of porous materials that are promising in a wide variety of applications due to their outstanding physical and chemical properties.

    DOI: 10.1039/d2ta07966f

  110. A 2D/2D heterojunction of ultrathin Pd nanosheet/MXene towards highly efficient methanol oxidation reaction: the significance of 2D material nanoarchitectonics 査読有り

    Huajie Huang, Di Xiao, Zihan Zhu, Chi Zhang, Lu Yang, Haiyan He, Jungmok You, Quanguo Jiang, Xingtao Xu, Yusuke Yamauchi

    Chemical Science   14 巻 ( 36 ) 頁: 9854 - 9862   2023年

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    The stereo-assembly of ultrathin Pd nanosheets in situ grown on the MXene surface was achieved via a convenient wet-chemical approach, which possess superior electrocatalytic performance for the methanol oxidation reaction.

    DOI: 10.1039/d3sc03735e

  111. N and S co-doped nanosheet-like porous carbon derived from sorghum biomass: mechanical nanoarchitecturing for upgraded potassium ion batteries 査読有り

    Minjun Kim, Liang Ma, Zhibin Li, Wenjie Mai, Nasim Amiralian, Alan E. Rowan, Yusuke Yamauchi, Aimiao Qin, Rana Arslan Afzal, Darren Martin, Ashok Kumar Nanjundan, Jinliang Li

    Journal of Materials Chemistry A   11 巻 ( 31 ) 頁: 16626 - 16635   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    Nanosheet-like sorghum biomass obtained by mild alkaline treatment and high-energy ball milling is heteroatom-doped with N and S during pyrolysis. The resulting N, S co-doped carbon shows a significantly improved K-ion storage as an anode material in potassium ion batteries.

    DOI: 10.1039/d3ta03215a

  112. “Functional upcycling” of polymer waste towards the design of new materials 査読有り

    Olga Guselnikova, Oleg Semyonov, Elizaveta Sviridova, Roman Gulyaev, Alina Gorbunova, Dmitry Kogolev, Andrii Trelin, Yusuke Yamauchi, Rabah Boukherroub, Pavel Postnikov

    Chemical Society Reviews   52 巻 ( 14 ) 頁: 4755 - 4832   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    Functional upcycling is post-polymerisation modification or surface functionalisation of plastic waste without considerable polymer chain destruction to produce a new upcycled material with added value.

    DOI: 10.1039/d2cs00689h

  113. Waste PET upcycling to conductive carbon-based composite through laser-assisted carbonization of UiO-66 査読有り

    Dmitry Kogolev, Oleg Semyonov, Nadezhda Metalnikova, Maxim Fatkullin, Raul D. Rodriguez, Petr Slepicka, Yusuke Yamauchi, Olga Guselnikova, Rabah Boukherroub, Pavel S. Postnikov

    Journal of Materials Chemistry A   11 巻 ( 3 ) 頁: 1108 - 1115   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    The upcycling of waste polymers into novel materials with high added value is a vital task for modern chemical engineering.

    DOI: 10.1039/d2ta08127j

  114. Tunable thiophene-based conjugated microporous polymers for the disposal of toxic hexavalent chromium 査読有り

    Mohammed G. Kotp, Nagy L. Torad, Hiroki Nara, Watcharop Chaikittisilp, Jungmok You, Yusuke Yamauchi, Ahmed F. M. EL-Mahdy, Shiao-Wei Kuo

    Journal of Materials Chemistry A   11 巻 ( 27 ) 頁: 15022 - 15032   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    We present a rational design of thiophene-based conjugated microporous polymers (CMPs) demonstrating their tunable adsorption reduction of toxic Cr(vi) ions with comparable performances.

    DOI: 10.1039/d3ta00175j

  115. Spontaneous generation of singlet oxygen on microemulsion-derived manganese oxides with rich oxygen vacancies for efficient aerobic oxidation 査読有り

    Jun Tang, Junbao Chen, Zhanyu Zhang, Qincheng Ma, Xiaolong Hu, Peng Li, Zhiqiang Liu, Peixin Cui, Chao Wan, Qingping Ke, Lei Fu, Jeonghun Kim, Takashi Hamada, Yunqing Kang, Yusuke Yamauchi

    Chemical Science   14 巻 ( 46 ) 頁: 13402 - 13409   2023年

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    We fabricated a range of N<sub>y</sub>-MnO<sub>x</sub> using compartmentalized microemulsion crystallization followed by post-calcination. These materials have the unique ability to generate sufficient <sup>1</sup>O<sub>2</sub> at room temperature without requiring an external field.

    DOI: 10.1039/d3sc04418a

  116. Soft–hard interface design in super-elastic conductive polymer hydrogel containing Prussian blue analogues to enable highly efficient electrochemical deionization 査読有り

    Yifan Ren, Fei Yu, Xin-Gui Li, Brian Yuliarto, Xingtao Xu, Yusuke Yamauchi, Jie Ma

    Materials Horizons   10 巻 ( 9 ) 頁: 3548 - 3558   2023年

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    Soft-hard interface has been developed by introducing conducting polymer hydrogels to improve the cycling electrochemical deionization performance of Prussian blue analogues.

    DOI: 10.1039/d2mh01149b

  117. Prussian blue and its analogues as functional template materials: control of derived structure compositions and morphologies 査読有り

    Behnoosh Bornamehr, Volker Presser, Aldo J. G. Zarbin, Yusuke Yamauchi, Samantha Husmann

    Journal of Materials Chemistry A   11 巻 ( 20 ) 頁: 10473 - 10492   2023年

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    This review covers the use of Prussian blue and its analogues as sacrificial templates and the adopted strategies to produce new materials with diverse compositions, structures and morphologies.

    DOI: 10.1039/d2ta09501g

  118. Persistent microporosity of a non-planar porphyrinoid based on multiple supramolecular interactions for nanomechanical sensor applications 査読有り

    Mandeep K. Chahal, Subrata Maji, Anuradha Liyanage, Yoshitaka Matsushita, Pelin Tozman, Daniel T. Payne, Wipakorn Jevasuwan, Naoki Fukata, Paul A. Karr, Jan Labuta, Lok Kumar Shrestha, Shinsuke Ishihara, Katsuhiko Ariga, Francis D’Souza, Genki Yoshikawa, Yusuke Yamauchi, Jonathan P. Hill

    Materials Chemistry Frontiers   7 巻 ( 2 ) 頁: 325 - 332   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    A novel fused porphyrinoid undergoes supramolecular assembly to form a persistently porous solution processable material for sensing of acetone vapour under high humidity using a membrane-type surface stress sensor.

    DOI: 10.1039/d2qm01039a

  119. Particle size optimization of metal–organic frameworks for superior capacitive deionization in oxygenated saline water 査読有り

    Zhiyuan Xing, Xiaoxu Xuan, Haiyan Hu, Mohua Li, Huimin Gao, Azhar Alowasheeir, Dong Jiang, Liyang Zhu, Zhengtong Li, Yunqing Kang, Jing Zhang, Xibin Yi, Yusuke Yamauchi, Xingtao Xu

    Chemical Communications   59 巻 ( 30 ) 頁: 4515 - 4518   2023年

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    The effect of metal–organic framework particle size on capacitive performance in oxygenated saline water was studied, suggesting that as particle size increases, the performance decreases.

    DOI: 10.1039/d2cc06460j

  120. Opportunities and challenges of hydrotalcite-related electrocatalysts for seawater splitting: a systematic perspective from materials synthesis, characterization and application 査読有り

    Rongrong Dai, Chenyang Dai, Shujin Hou, Qijun He, Baogui Liu, Minghua Huang, Heqing Jiang, MoHua Li, Likun Pan, Zheng Guo, Jeonghun Kim, Minsu Han, Yusuke Yamauchi, Xingtao Xu

    Journal of Materials Chemistry A   11 巻 ( 38 ) 頁: 20383 - 20407   2023年

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    Hydrotalcites and their related materials hold great potential to unlock seawater splitting effectively.

    DOI: 10.1039/d3ta02524a

  121. Size control and electronic manipulation of Ru catalyst over B, N co-doped carbon network for high-performance hydrogen evolution reaction 査読有り

    Shuai Xu, Mang Niu, Guowei Zhao, Shujun Ming, Xingyun Li, Qilong Zhu, Liang-Xin Ding, Minjun Kim, Asma A. Alothman, Mohammed Sheikh Saleh Mushab, Yusuke Yamauchi

    Nano Research   16 巻 ( 5 ) 頁: 6212 - 6219   2022年12月

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    担当区分:最終著者, 責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media LLC  

    DOI: 10.1007/s12274-022-5250-1

    その他リンク: https://link.springer.com/article/10.1007/s12274-022-5250-1/fulltext.html

  122. Flexible Nanoarchitectonics for Biosensing and Physiological Monitoring Applications 査読有り

    Aditya Ashok, Tuan‐Khoa Nguyen, Matthew Barton, Michael Leitch, Mostafa Kamal Masud, Hyeongyu Park, Thanh‐An Truong, Yusuf Valentino Kaneti, Hang Thu Ta, Xiaopeng Li, Kang Liang, Thanh Nho Do, Chun‐Hui Wang, Nam‐Trung Nguyen, Yusuke Yamauchi, Hoang‐Phuong Phan

    Small   19 巻 ( 9 )   2022年12月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Flexible and implantable electronics hold tremendous promises for advanced healthcare applications, especially for physiological neural recording and modulations. Key requirements in neural interfaces include miniature dimensions for spatial physiological mapping and low impedance for recognizing small biopotential signals. Herein, a bottom‐up mesoporous formation technique and a top‐down microlithography process are integrated to create flexible and low‐impedance mesoporous gold (Au) electrodes for biosensing and bioimplant applications. The mesoporous architectures developed on a thin and soft polymeric substrate provide excellent mechanical flexibility and stable electrical characteristics capable of sustaining multiple bending cycles. The large surface areas formed within the mesoporous network allow for high current density transfer in standard electrolytes, highly suitable for biological sensing applications as demonstrated in glucose sensors with an excellent detection limit of 1.95 µm and high sensitivity of 6.1 mA cm<sup>−2</sup> µM<sup>−1</sup>, which is approximately six times higher than that of benchmarking flat/non‐porous films. The low impedance of less than 1 kΩ at 1 kHz in the as‐synthesized mesoporous electrodes, along with their mechanical flexibility and durability, offer peripheral nerve recording functionalities that are successfully demonstrated in vivo. These features highlight the new possibilities of our novel flexible nanoarchitectonics for neuronal recording and modulation applications.

    DOI: 10.1002/smll.202204946

    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/smll.202204946

  123. Selective Radical Oxidation of Cyclohexane to Adipic Acid at Electrochemical Interfaces 査読有り

    Hao Tian, Yujun Zhang, Ziyang Zhang, Tingting Lv, Lei Bian, Hong Wang, Jianxin Li, Yusuke Yamauchi, Zhong‐Li Wang

    ChemCatChem   15 巻 ( 2 )   2022年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Direct conversion of cyclohexane to adipic acid (AA) under mild conditions is an attractive technology in response to the increasing industrial demand of chemical intermediate AA. Exploring advanced free radical oxidation systems is the key to converting cyclohexane in a direct and mild manner. This study demonstrates that electrocatalytic water oxidation can quantitatively generate hydroxyl radicals (⋅OH) to selectively oxidize cyclohexane to AA by a vanadium oxide (VO<sub>x</sub>)‐platinum (Pt) composite catalyst coupled with persulfate (PS) redox mediator at the electrode/electrolyte interface under ambient temperature and pressure. The three active components of VO<sub>x</sub>, Pt, and PS can produce different concentrations of ⋅OH radicals alone or in combination, resulting in different AA selectivity and cyclohexane conversion, and the activity increased with the increase of free radical concentration before AA peroxidation. The optimized ternary oxidation system of VO<sub>x</sub>‐Pt‐PS achieved a cyclohexane conversion of 85 % with 95 % AA selectivity and the corresponding yield was 81 %, better than most traditional oxidation systems. Electrochemical interfaces‐driven radical oxidation provides opportunities to oxidatively convert many other inexpensive hydrocarbons to value‐added chemicals.

    DOI: 10.1002/cctc.202201220

    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/cctc.202201220

  124. Covalently Interlayer‐Confined Organic–Inorganic Heterostructures for Aqueous Potassium Ion Supercapacitors

    Jianping Chen, Bin Liu, Hang Cai, Shude Liu, Yusuke Yamauchi, Seong Chan Jun

    Small   19 巻 ( 4 )   2022年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    Abstract

    Artificial assembly of organic–inorganic heterostructures for electrochemical energy storage at the molecular level is promising, but remains a great challenge. Here, a covalently interlayer‐confined organic (polyaniline [PANI])–inorganic (MoS<sub>2</sub>) hybrid with a dual charge‐storage mechanism is developed for boosting the reaction kinetics of supercapacitors. Systematic characterizations reveal that PANI induces a partial phase transition from the 2H to 1T phases of MoS<sub>2</sub>, expands the interlayer spacing of MoS<sub>2</sub>, and increases the hydrophilicity. More in‐depth insights from the synchrotron radiation‐based X‐ray technique illustrate that the covalent grafting of PANI to MoS<sub>2</sub> induces the formation of MoN bonds and unsaturated Mo sites, leading to increased active sites. Theoretical analysis reveals that the covalent assembly facilitates cross‐layer electron transfer and decreases the diffusion barrier of K<sup>+</sup> ions, which favors reaction kinetics. The resultant hybrid material exhibits high specific capacitance and good rate capability. This design provides an effective strategy to develop organic–inorganic heterostructures for superior K‐ion storage. The K‐ion storage mechanism concerning the reversible insertion/extraction upon charge/discharge is revealed through ex situ X‐ray photoelectron spectroscopy.

    DOI: 10.1002/smll.202204275

    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/smll.202204275

  125. Ni-Fe nanoframes via a unique structural formation induced by sonochemical etching

    Azhar Alowasheeir, Hiroki Nara, Miharu Eguchi, Yusuke Yamauchi

    Chemical Communications   92 巻   2022年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    A uniform nanoframe structure derived from a Prussian blue analogue (PBA) with an internal cavity is successfully synthesized by sonochemical etching. The uniquely structured PBA nanoframes possess a three-dimensional open structure and high surface area, resulting in enhanced electrochemical properties for the oxygen evolution reaction as a model reaction.

    DOI: 10.1039/d2cc03253h

    Scopus

    PubMed

  126. Two-Dimensional Metal–Organic Framework Superstructures from Ice-Templated Self-Assembly

    Yujie Song, Xiaokai Song, Xiaoke Wang, Jingzheng Bai, Fang Cheng, Chao Lin, Xin Wang, Hui Zhang, Jianhua Sun, Tiejun Zhao, Hiroki Nara, Yoshiyuki Sugahara, Xiaopeng Li, Yusuke Yamauchi

    Journal of the American Chemical Society   144 巻 ( 38 ) 頁: 17457 - 17467   2022年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    Here, we report the synthesis of two-dimensional (2D) layered metal-organic framework (MOF) nanoparticle (NP) superstructures via an ice-templating strategy. MOF NP monolayers and bilayers can be obtained by regulating the concentration of colloidal MOF NPs without any external fields during self-assembly. Adjacent polyhedral MOF NPs are packed and aligned through crystalline facets, resulting in the formation of a quasi-ordered array superstructure. The morphology of the MOF layers is well preserved when subjected to pyrolysis, and the obtained carbon NPs have hollow interiors driven by the outward contraction of MOF precursors during pyrolysis. With the advantages of large surface areas, hierarchical porosity, high exposure of active sites, and fast electron transport of the 2D layered structure, the mono- and bilayered carbon NP superstructures show better oxygen reduction activity than isolated carbon particles in alkaline media. Our work demonstrates that ice-templating is a powerful strategy to fabricate superstructures of various MOFs and their derivatives.

    DOI: 10.1021/jacs.2c06109

    Scopus

    PubMed

  127. Strategic design of Fe and N co-doped hierarchically porous carbon as superior ORR catalyst: from the perspective of nanoarchitectonics 査読有り

    Minjun Kim, Konstantin L. Firestein, Joseph F. S. Fernando, Xingtao Xu, Hyunsoo Lim, Dmitri Golberg, Jongbeom Na, Jihyun Kim, Hiroki Nara, Jing Tang, Yusuke Yamauchi

    CHEMICAL SCIENCE   13 巻 ( 36 ) 頁: 10836 - 10845   2022年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

    In this study, we present microporous carbon (MPC), hollow microporous carbon (HMC) and hierarchically porous carbon (HPC) to demonstrate the importance of strategical designing of nanoarchitectures in achieving advanced catalyst (or electrode) materials, especially in the context of oxygen reduction reaction (ORR). Based on the electrochemical impedance spectroscopy and ORR studies, we identify a marked structural effect depending on the porosity. Specifically, mesopores are found to have the most profound influence by significantly improving electrochemical wettability and accessibility. We also identify that macropore contributes to the rate capability of the porous carbons. The results of the rotating ring disk electrode (RRDE) method also demonstrate the advantages of strategically designed double-shelled nanoarchitecture of HPC to increase the overall electron transfer number (n) closer to four by offering a higher chance of the double two-electron pathways. Next, selective doping of highly active Fe-N-x sites on HPC is obtained by increasing the nitrogen content in HPC. As a result, the optimized Fe and N co-doped HPC demonstrate high ORR catalytic activity comparable to the commercial 20 wt% Pt/C in alkaline electrolyte. Our findings, therefore, strongly advocate the importance of a strategic design of advanced catalyst (or electrode) materials, especially in light of both structural and doping effects, from the perspective of nanoarchitectonics.

    DOI: 10.1039/d2sc02726g

    Web of Science

    Scopus

  128. Soft Template-Based Synthesis of Mesoporous Phosphorus- and Boron-Codoped NiFe-Based Alloys for Efficient Oxygen Evolution Reaction 査読有り

    Yunqing Kang, Yanna Guo, Jingjing Zhao, Bo Jiang, Jingru Guo, Yi Tang, Hexing Li, Victor Malgras, Mohammed A. Amin, Hiroki Nara, Yoshiyuki Sugahara, Yusuke Yamauchi, Toru Asahi

    SMALL   18 巻 ( 33 )   2022年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:WILEY-V C H VERLAG GMBH  

    Controlling the morphology, composition, and crystalline phase of mesoporous nonnoble metal catalysts is essential for improving their performance. Herein, well-defined P- and B-codoped NiFe alloy mesoporous nanospheres (NiFeB-P MNs) with an adjustable Ni/Fe ratio and large mesopores (11 nm) are synthesized via soft-template-based chemical reduction and a subsequent phosphine-vapor-based phosphidation process. Earth-abundant NiFe-based materials are considered promising electrocatalysts for the oxygen evolution reaction (OER) because of their low cost and high intrinsic catalytic activity. The resulting NiFeB-P MNs exhibit a low OER overpotential of 252 mV at 10 mA cm(-2), which is significantly smaller than that of B-doped NiFe MNs (274 mV) and commercial RuO2 (269 mV) in alkaline electrolytes. Thus, this work highlights the practicality of designing mesoporous nonnoble metal structures and the importance of incorporating P in metallic-B-based alloys to modify their electronic structure for enhancing their intrinsic activity.

    DOI: 10.1002/smll.202203411

    Web of Science

    Scopus

    PubMed

  129. Microwave one-pot synthesis of CNT-supported amorphous Ni–P alloy nanoparticles with enhanced hydrogenation performance 査読有り

    Yunqing Kang, Haoran Du, Bo Jiang, Hui Li, Yanna Guo, Mohammed A. Amin, Yoshiyuki Sugahara, Toru Asahi, Hexing Li, Yusuke Yamauchi

    Journal of Materials Chemistry A   10 巻 ( 12 ) 頁: 6560 - 6568   2022年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

    A CNTs supported amorphous Ni–P alloy NPs catalyst is synthesized by a simple one-pot microwave heating method. The resulting outstanding hydrogenation performance is due to the high-dispersion of Ni–P NPs and the enhanced metal–support interaction.

    DOI: 10.1039/d1ta10742a

  130. Realizing Superior Redox Kinetics of Hollow Bimetallic Sulfide Nanoarchitectures by Defect‐Induced Manipulation toward Flexible Solid‐State Supercapacitors

    Shude Liu, Ling Kang, Jisong Hu, Euigeol Jung, Joel Henzie, Azhar Alowasheeir, Jian Zhang, Ling Miao, Yusuke Yamauchi, Seong Chan Jun

    Small   18 巻 ( 5 ) 頁: 2104507 - 2104507   2022年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    DOI: 10.1002/smll.202104507

    その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/smll.202104507

  131. Embedding Metal–Organic Frameworks for the Design of Flexible Hybrid Supercapacitors by Electrospinning: Synthesis of Highly Graphitized Carbon Nanofibers Containing Metal Oxide Nanoparticles

    Yanjiang Li, Guang Zhu, Xingtao Xu, Lei Chen, Ting Lu, Jonathan P Hill, Likun Pan, Yusuke Yamauchi

    Small Structures     2022年

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    記述言語:英語  

    DOI: 10.1002/sstr.202200015

  132. Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu2Se as a Potential High-Rate Anode for Sodium-Ion Battery

    Nagaura T., Li J., Fernando J.F.S., Ashok A., Alowasheeir A., Nanjundan A.K., Lee S., Golberg D.V., Na J., Yamauchi Y.

    Small   18 巻 ( 34 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202106629

  133. Engineering Stress in Thin Films: An Innovative Pathway Toward 3D Micro and Nanosystems

    Truong T.-A., Nguyen T.-K., Zhao H., Nguyen N.-K., Dinh T., Park Y., Nguyen T., Yamauchi Y., Nguyen N.-T., Phan H.-P.

    Small   18 巻 ( 4 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202105748

  134. Nanoarchitectonics for Abused-Drug Biosensors

    Moradi R., Khalili N.P., Septiani N.L.W., Liu C.-H., Doustkhah E., Yamauchi Y., Rotkin S.V.

    Small   18 巻 ( 10 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202104847

  135. Macroscopic MOF Architectures: Effective Strategies for Practical Application in Water Treatment

    Yao Y., Wang C., Na J., Hossain M.S.A., Yan X., Zhang H., Amin M.A., Qi J., Yamauchi Y., Li J.

    Small   18 巻 ( 8 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202104387

  136. Progress in Solid Polymer Electrolytes for Lithium-Ion Batteries and Beyond

    An Y., Han X., Liu Y., Azhar A., Na J., Nanjundan A.K., Wang S., Yu J., Yamauchi Y.

    Small   18 巻 ( 3 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202103617

  137. Nanoarchitectonics of Metal–Organic Frameworks for Capacitive Deionization via Controlled Pyrolyzed Approaches

    Wang H., Chen B., Liu D.-J., Xu X., Osmieri L., Yamauchi Y.

    Small   18 巻 ( 2 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202102477

  138. Material Nanoarchitectonics of Functional Polymers and Inorganic Nanomaterials for Smart Supercapacitors

    Na J., Zheng D., Kim J., Gao M., Azhar A., Lin J., Yamauchi Y.

    Small   18 巻 ( 7 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202102397

  139. Photovoltaic-powered supercapacitors for driving overall water splitting: A dual-modulated 3D architecture

    Sun Z., Sun L., Koh S.W., Ge J., Fei J., Yao M., Hong W., Liu S., Yamauchi Y., Li H.

    Carbon Energy   4 巻 ( 6 ) 頁: 1262 - 1273   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/cey2.213

  140. Heterocyclic Conjugated Polymer Nanoarchitectonics with Synergistic Redox-Active Sites for High-Performance Aluminium Organic Batteries

    Peng X., Xie Y., Baktash A., Tang J., Lin T., Huang X., Hu Y., Jia Z., Searles D.J., Yamauchi Y., Wang L., Luo B.

    Angewandte Chemie - International Edition   61 巻 ( 25 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/anie.202203646

  141. A General Concurrent Template Strategy for Ordered Mesoporous Intermetallic Nanoparticles with Controllable Catalytic Performance

    Lv H., Qin H., Ariga K., Yamauchi Y., Liu B.

    Angewandte Chemie - International Edition   61 巻 ( 17 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/anie.202116179

  142. Plasma-Induced Nanocrystalline Domain Engineering and Surface Passivation in Mesoporous Chalcogenide Semiconductor Thin Films

    Ashok A., Vasanth A., Nagaura T., Eguchi M., Motta N., Phan H.-P., Nguyen N.-T., Shapter J.G., Na J., Yamauchi Y.

    Angewandte Chemie - International Edition   61 巻 ( 14 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/anie.202114729

  143. Atomic-Level Platinum Filling into Ni-Vacancies of Dual-Deficient NiO for Boosting Electrocatalytic Hydrogen Evolution

    Yan Y., Lin J., Xu T., Liu B., Huang K., Qiao L., Liu S., Cao J., Jun S.C., Yamauchi Y., Qi J.

    Advanced Energy Materials   12 巻 ( 24 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/aenm.202200434

  144. MXene Nanoarchitectonics: Defect-Engineered 2D MXenes towards Enhanced Electrochemical Water Splitting

    Tang Y., Yang C., Xu X., Kang Y., Henzie J., Que W., Yamauchi Y.

    Advanced Energy Materials   12 巻 ( 12 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/aenm.202103867

  145. Current Progress and Scalable Approach toward the Synthesis of 2D Metal–Organic Frameworks

    Chen J.E., Yang Z.-J., Koh H.U., Shen J., Cai Y., Yamauchi Y., Yeh L.-H., Tung V., Wu K.C.W.

    Advanced Materials Interfaces   9 巻 ( 13 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/admi.202102560

  146. Fullerphene Nanosheets: A Bottom-Up 2D Material for Single-Carbon-Atom-Level Molecular Discrimination

    Song J., Murata T., Tsai K.-C., Jia X., Sciortino F., Ma R., Yamauchi Y., Hill J.P., Shrestha L.K., Ariga K.

    Advanced Materials Interfaces   9 巻 ( 11 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/admi.202102241

  147. Noble-Metal-Based Hollow Mesoporous Nanoparticles: Synthesis Strategies and Applications

    Sun L., Lv H., Feng J., Guselnikova O., Wang Y., Yamauchi Y., Liu B.

    Advanced Materials   34 巻 ( 31 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/adma.202201954

  148. Material Evolution with Nanotechnology, Nanoarchitectonics, and Materials Informatics: What will be the Next Paradigm Shift in Nanoporous Materials?

    Chaikittisilp W., Yamauchi Y., Ariga K.

    Advanced Materials   34 巻 ( 7 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/adma.202107212

  149. Understanding Synthesis–Structure–Performance Correlations of Nanoarchitectured Activated Carbons for Electrochemical Applications and Carbon Capture

    Zhang S., Zheng M., Tang Y., Zang R., Zhang X., Huang X., Chen Y., Yamauchi Y., Kaskel S., Pang H.

    Advanced Functional Materials   32 巻 ( 40 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/adfm.202204714

  150. Constructing Fast Transmembrane Pathways in a Layered Double Hydroxide Nanosheets/Nanoparticles Composite Film for an Inorganic Anion-Exchange Membrane

    Xian F., Jia L., Sugahara Y., Xue H., Yamauchi Y., Sasaki T., Ma R.

    ACS Applied Materials and Interfaces   14 巻 ( 45 ) 頁: 51212 - 51221   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acsami.2c15764

  151. Porous Nanoarchitectures of Nonprecious Metal Borides: From Controlled Synthesis to Heterogeneous Catalyst Applications

    Kang Y., Tang Y., Zhu L., Jiang B., Xu X., Guselnikova O., Li H., Asahi T., Yamauchi Y.

    ACS Catalysis   12 巻 ( 23 ) 頁: 14773 - 14793   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acscatal.2c03480

  152. Molecular-Scale Manipulation of Layer Sequence in Heteroassembled Nanosheet Films toward Oxygen Evolution Electrocatalysts

    He Y., Jia L., Lu X., Wang C., Liu X., Chen G., Wu D., Wen Z., Zhang N., Yamauchi Y., Sasaki T., Ma R.

    ACS Nano   16 巻 ( 3 ) 頁: 4028 - 4040   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acsnano.1c09615

  153. Integrated, Transparent Silicon Carbide Electronics and Sensors for Radio Frequency Biomedical Therapy

    Nguyen T.-K., Yadav S., Truong T.-A., Han M., Barton M., Leitch M., Guzman P., Dinh T., Ashok A., Vu H., Dau V., Haasmann D., Chen L., Park Y., Do T.N., Yamauchi Y., Rogers J.A., Nguyen N.-T., Phan H.-P.

    ACS Nano   16 巻 ( 7 ) 頁: 10890 - 10903   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acsnano.2c03188

  154. General Synthesis of MOF Nanotubes via Hydrogen-Bonded Organic Frameworks toward Efficient Hydrogen Evolution Electrocatalysts

    Cai Z.-X., Xia Y., Ito Y., Ohtani M., Sakamoto H., Ito A., Bai Y., Wang Z.-L., Yamauchi Y., Fujita T.

    ACS Nano   16 巻 ( 12 ) 頁: 20851 - 20864   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acsnano.2c08245

  155. Palm Sugar-Induced Formation of Hexagonal Tungsten Oxide with Nanorod-Assembled Three-Dimensional Hierarchical Frameworks for Nitrogen Dioxide Sensing

    Septiani N.L.W., Shukri G., Saputro A.G., Nugraha, Karim M.R., Al-Mubaddel F., Hardiansyah A., Yamauchi Y., Kaneti Y.V., Yuliarto B.

    ACS Sustainable Chemistry and Engineering   10 巻 ( 46 ) 頁: 15035 - 15045   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acssuschemeng.2c03315

  156. Metal-Organic Framework-Derived Graphene Mesh: A Robust Scaffold for Highly Exposed Fe-N4Active Sites toward an Excellent Oxygen Reduction Catalyst in Acid Media

    Li J., Xia W., Tang J., Gao Y., Jiang C., Jia Y., Chen T., Hou Z., Qi R., Jiang D., Asahi T., Xu X., Wang T., He J., Yamauchi Y.

    Journal of the American Chemical Society   144 巻 ( 21 ) 頁: 9280 - 9291   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/jacs.2c00719

  157. MOF-derived nanoporous carbons with diverse tunable nanoarchitectures

    Kim M., Xin R., Earnshaw J., Tang J., Hill J.P., Ashok A., Nanjundan A.K., Kim J., Young C., Sugahara Y., Na J., Yamauchi Y.

    Nature Protocols   17 巻 ( 12 ) 頁: 2990 - 3027   2022年

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    記述言語:英語   出版者・発行元:Springer Nature  

    DOI: 10.1038/s41596-022-00718-2

  158. Ultrathin nanosheet-assembled nickel-based metal–organic framework microflowers for supercapacitor applications

    Wang C.-H., Zhang D.-W., Liu S., Yamauchi Y., Zhang F.-B., Kaneti Y.V.

    Chemical Communications   58 巻 ( 7 ) 頁: 1009 - 1012   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d1cc04880e

  159. Efficient lithium-ion storage using a heterostructured porous carbon framework and its in situ transmission electron microscopy study 査読有り

    Minjun Kim, Joseph F. S. Fernando, Jie Wang, Ashok Kumar Nanjundan, Jongbeom Na, Md. Shahriar A. Hossain, Hiroki Nara, Darren Martin, Yoshiyuki Sugahara, Dmitri Golberg, Yusuke Yamauchi

    Chemical Communications   58 巻 ( 6 ) 頁: 863 - 866   2022年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry ({RSC})  

    A heterostructured porous carbon framework (PCF) composed of reduced graphene oxide (rGO) nanosheets and metal organic framework (MOF)-derived microporous carbon is prepared to investigate its potential use in a lithium-ion battery. As an anode material, the PCF exhibits efficient lithium-ion storage performance with a high reversible specific capacity (771 mA h g(-1) at 50 mA g(-1)), an excellent rate capability (448 mA h g(-1) at 1000 mA g(-1)), and a long lifespan (75% retention after 400 cycles). The in situ transmission electron microscopy (TEM) study demonstrates that its unique three-dimensional (3D) heterostructure can largely tolerate the volume expansion. We envisage that this work may offer a deeper understanding of the importance of tailored design of anode materials for future lithium-ion batteries.

    DOI: 10.1039/D1CC05298E

    Web of Science

    Scopus

    PubMed

  160. Heterointerface optimization in a covalent organic framework-on-MXene for high-performance capacitive deionization of oxygenated saline water

    Zhang S., Xu X., Liu X., Yang Q., Shang N., Zhao X., Zang X., Wang C., Wang Z., Shapter J.G., Yamauchi Y.

    Materials Horizons   9 巻 ( 6 ) 頁: 1708 - 1716   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d1mh01882e

  161. MoS2 nanosheets with expanded interlayer spacing for ultra-stable aqueous Mg-ion hybrid supercapacitor

    Pan G., Li J., Han L., Peng W., Xu X., Lu T., Amin M.A., Yamauchi Y., Xu M., Pan L.

    Inorganic Chemistry Frontiers   9 巻 ( 8 ) 頁: 1666 - 1673   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d1qi01613j

  162. Mesoporous PdBi nanocages for enhanced electrocatalytic performances by all-direction accessibility and steric site activation

    Du D., Geng Q., Ma L., Ren S., Li J.-X., Dong W., Hua Q., Fan L., Shao R., Wang X., Li C., Yamauchi Y.

    Chemical Science   13 巻 ( 13 ) 頁: 3819 - 3825   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d1sc06314f

  163. Performance enhancement strategies for surface plasmon resonance sensors in direct glucose detection using pristine and modified UiO-66: effects of morphology, immobilization technique, and signal amplification

    Gumilar G., Henzie J., Yuliarto B., Patah A., Nugraha N., Iqbal M., Amin M.A., Hossain M.S.A., Yamauchi Y., Kaneti Y.V.

    Journal of Materials Chemistry A   10 巻 ( 12 ) 頁: 6662 - 6678   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d1ta08741j

  164. Highly adhesive and disposable inorganic barrier films: Made from 2D silicate nanosheets and water

    Eguchi M., Konarova M., L. Torad N., Chang T.-A., Kang D.-Y., Shapter J., Yamauchi Y.

    Journal of Materials Chemistry A   10 巻 ( 4 ) 頁: 1956 - 1964   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d1ta08837h

  165. Phase engineering of dual active 2D Bi2O3-based nanocatalysts for alkaline hydrogen evolution reaction electrocatalysis

    Wu Z., Mei J., Liu Q., Wang S., Li W., Xing S., Bai J., Yang J., Luo W., Guselnikova O., O'Mullane A.P., Gu Y., Yamauchi Y., Liao T., Sun Z.

    Journal of Materials Chemistry A   10 巻 ( 2 ) 頁: 808 - 817   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d1ta09019d

  166. 2D boron nanosheet architectonics: Opening new territories by smart functionalization

    Han C., Han R., Zhang X., Xu Z., Li W., Yamauchi Y., Huang Z.

    Journal of Materials Chemistry A   10 巻 ( 6 ) 頁: 2736 - 2750   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d1ta09562e

  167. Inorganic material-based Janus nanosheets: asymmetrically functionalized 2D-inorganic nanomaterials

    Suzuki R., Yamauchi Y., Sugahara Y.

    Dalton Transactions   51 巻 ( 35 ) 頁: 13145 - 13156   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d2dt01557a

  168. Electrochemical preparation of nano/micron structure transition metal-based catalysts for the oxygen evolution reaction

    Li H., Han X., Zhao W., Azhar A., Jeong S., Jeong D., Na J., Wang S., Yu J., Yamauchi Y.

    Materials Horizons   9 巻 ( 7 ) 頁: 1788 - 1824   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d2mh00075j

  169. Zwitterionic iodonium species afford halogen bond-based porous organic frameworks

    Soldatova N.S., Postnikov P.S., Ivanov D.M., Semyonov O.V., Kukurina O.S., Guselnikova O., Yamauchi Y., Wirth T., Zhdankin V.V., Yusubov M.S., Gomila R.M., Frontera A., Resnati G., Kukushkin V.Y.

    Chemical Science     2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d2sc00892k

  170. Modular assembly of MOF-derived carbon nanofibers into macroarchitectures for water treatment

    Zhang Z., Wang C., Yao Y., Zhang H., Na J., Zhou Y., Zhu Z., Qi J., Eguchi M., Yamauchi Y., Li J.

    Chemical Science   13 巻 ( 32 ) 頁: 9159 - 9164   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d2sc02619h

  171. Metal-organic frameworks and their derivatives for metal-ion (Li, Na, K and Zn) hybrid capacitors

    Zhan F., Wang H., He Q., Xu W., Chen J., Ren X., Wang H., Liu S., Han M., Yamauchi Y., Chen L.

    Chemical Science   13 巻 ( 41 ) 頁: 11981 - 12015   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d2sc04012c

  172. Tuning iron spin states in single-atom nanozymes enables efficient peroxidase mimicking

    Wei X., Song S., Song W., Wen Y., Xu W., Chen Y., Wu Z., Qin Y., Jiao L., Wu Y., Sha M., Huang J., Cai X., Zheng L., Hu L., Gu W., Eguchi M., Asahi T., Yamauchi Y., Zhu C.

    Chemical Science   13 巻 ( 45 ) 頁: 13574 - 13581   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d2sc05679h

  173. Ru ions enhancing the interface bonding between the Pt nanoparticle catalyst and perovskite support for super anti-sintering performance

    Zhang S., Zhou W., Mao J., An K., Li N., Qin T., Chen L., Liu X., Mei B., Jiang Z., Wang Z.-L., Yamauchi Y., Liu Y.

    Journal of Materials Chemistry A   10 巻 ( 15 ) 頁: 8227 - 8237   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d2ta00392a

  174. Multifunctional materials for photo-electrochemical water splitting

    Rajaitha P.M., Hajra S., Mistewicz K., Panda S., Sahu M., Dubal D., Yamauchi Y., Kim H.J.

    Journal of Materials Chemistry A   10 巻 ( 30 ) 頁: 15906 - 15931   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d2ta01869a

  175. Co, Fe and N co-doped 1D assembly of hollow carbon nanoboxes for high-performance supercapacitors

    Kim M., Wang C., Earnshaw J., Park T., Amirilian N., Ashok A., Na J., Han M., Rowan A.E., Li J., Yi J.W., Yamauchi Y.

    Journal of Materials Chemistry A   10 巻 ( 45 ) 頁: 24056 - 24063   2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/d2ta06950d

  176. Nanomaterials for sustainable remediation of chemical contaminants in water and soil

    Mukhopadhyay R., Sarkar B., Khan E., Alessi D.S., Biswas J.K., Manjaiah K.M., Eguchi M., Wu K.C.W., Yamauchi Y., Ok Y.S.

    Critical Reviews in Environmental Science and Technology   52 巻 ( 15 ) 頁: 2611 - 2660   2022年

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    記述言語:英語   出版者・発行元:Taylor and Francis Ltd.  

    DOI: 10.1080/10643389.2021.1886891

  177. Boosting capacitive performance of manganese oxide nanorods by decorating with three-dimensional crushed graphene

    Reaz A.H., Saha S., Roy C.K., Wahab M.A., Will G., Amin M.A., Yamauchi Y., Liu S., Kaneti Y.V., Hossain M.S., Firoz S.H.

    Nano Convergence   9 巻 ( 1 )   2022年

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    記述言語:英語   出版者・発行元:Korea Nano Technology Research Society  

    DOI: 10.1186/s40580-022-00300-2

  178. Mechanisms Responsible for Adsorption of Molybdate ions on Alumina for the Production of Medical Radioisotopes

    Fujita Y., Niizeki T., Fukumitsu N., Ariga K., Yamauchi Y., Malgras V., Kaneti Y.V., Liu C.-H., Hatano K., Suematsu H., Suzuki T., Tsuchiya K.

    Bulletin of the Chemical Society of Japan   95 巻 ( 1 ) 頁: 129 - 137   2022年

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    記述言語:英語   出版者・発行元:Chemical Society of Japan  

    DOI: 10.1246/bcsj.20210249

  179. κ-Carrageenan Gel Modified Mesoporous Gold Chronocoulometric Sensor for Ultrasensitive Detection of MicroRNA

    Salahuddin B., Masud M.K., Aziz S., Liu C.-H., Amiralian N., Ashok A., Hossain S.M.A., Park H., Wahab M.A., Amin M.A., Chari M.A., Rowan A.E., Yamauchi Y., Hossain M.S.A., Kaneti Y.V.

    Bulletin of the Chemical Society of Japan   95 巻 ( 1 ) 頁: 198 - 207   2022年

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    記述言語:英語   出版者・発行元:Chemical Society of Japan  

    DOI: 10.1246/bcsj.20210286

  180. Daylight-Driven Rechargeable TiO2 Nanocatalysts Suppress Wheat Blast Caused by Magnaporthe oryzae Triticum

    Mahmud N.U., Gupta D.R., Paul S.K., Chakraborty M., Shabab Mehebub Md., Surovy M.Z., Fajle Rabby S.M., Al Mahbub Rahat A., Roy P.C., Sohrawardy H., Amin M.A., Masud M.K., Ide Y., Yamauchi Y., Shahriar Hossain Md., Islam T.

    Bulletin of the Chemical Society of Japan   95 巻 ( 8 ) 頁: 1263 - 1271   2022年

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    記述言語:英語   出版者・発行元:Chemical Society of Japan  

    DOI: 10.1246/bcsj.20220010

  181. Photo-enhanced rechargeable high-energy-density metal batteries for solar energy conversion and storage

    Xue H., Gong H., Yamauchi Y., Sasaki T., Ma R.

    Nano Research Energy   1 巻 ( 1 )   2022年

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    記述言語:英語   出版者・発行元:Tsinghua University Press  

    DOI: 10.26599/NRE.2022.9120007

  182. Porphyrin-based framework materials for energy conversion

    Gu J., Peng Y., Zhou T., Ma J., Pang H., Yamauchi Y.

    Nano Research Energy   1 巻 ( 1 )   2022年

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    記述言語:英語   出版者・発行元:Tsinghua University Press  

    DOI: 10.26599/NRE.2022.9120009

  183. Porous Metal Nanocrystal Catalysts: Can Crystalline Porosity Enable Catalytic Selectivity?

    Min X., Lv H., Yamauchi Y., Liu B.

    CCS Chemistry   4 巻 ( 6 ) 頁: 1829 - 1842   2022年

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    記述言語:英語   出版者・発行元:Chinese Chemical Society  

    DOI: 10.31635/ccschem.022.202201892

  184. Theory of Chiral Electrodeposition by Chiral Micro- and Nano-Vortices under a Vertical Magnetic Field -1: 2D Nucleation by Micro-Vortices

    Morimoto R., Miura M., Sugiyama A., Yamauchi Y., Miura M., Oshikiri Y., Mogi I., Takagi S., Aogaki R.

    Magnetochemistry   8 巻 ( 7 )   2022年

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    記述言語:英語   出版者・発行元:MDPI  

    DOI: 10.3390/magnetochemistry8070071

  185. Two-Dimensional Layered Heterostructures of Nanoporous Carbons Using Reduced Graphene Oxide and Metal–Organic Frameworks

    Nitish Kumar, Neetu Bansal, Yusuke Yamauchi, and Rahul R. Salunkhe

    Chemistry of Materials   34 巻 ( 11 ) 頁: 4946 - 4954   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acs.chemmater.2c00160

  186. Super anti-sintering Pt nanoparticle catalysts on perovskite support by Ru ions enhancing the interface bonding

    Tian Qin, Siran Zhang, Wei Zhou, Jianing Mao, Kang An, Ningyan Li, Liwei Chen, Xi Liu, Bingbao Mei, Zheng Jiang, Zhong-Li Wang, Yusuke Yamauchi, Yuan Liu

    Journal of Materials Chemistry A     2022年

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    記述言語:英語   出版者・発行元:Royal Society of Chemistry  

    DOI: 10.1039/D2TA00392A

  187. New Trends in Nanoarchitectured SERS Substrates: Nanospaces, 2D Materials, and Organic Heterostructures

    Guselnikova O., Lim H., Kim H.-J., Kim S.H., Gorbunova A., Eguchi M., Postnikov P., Nakanishi T., Asahi T., Na J., Yamauchi Y.

    Small   18 巻 ( 25 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202107182

  188. Surface Filtration in Mesoporous Au Films Decorated by Ag Nanoparticles for Solving SERS Sensing Small Molecules in Living Cells

    Guselnikova O., Nugraha A.S., Na J., Postnikov P., Kim H.-J., Plotnikov E., Yamauchi Y.

    ACS Applied Materials and Interfaces   14 巻 ( 36 ) 頁: 41629 - 41639   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acsami.2c12804

  189. Tailoring the Structure of Chitosan-Based Porous Carbon Nanofiber Architectures toward Efficient Capacitive Charge Storage and Capacitive Deionization

    Szabó L., Xu X., Uto K., Henzie J., Yamauchi Y., Ichinose I., Ebara M.

    ACS Applied Materials and Interfaces   14 巻 ( 3 ) 頁: 4004 - 4021   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acsami.1c20199

  190. MgB2 Superconducting Joint Architecture with the Functionality to Screen External Magnetic Fields for MRI Magnet Applications

    Patel D., Matsumoto A., Kumakura H., Maeda M., Kim S.-H., Liang H., Yamauchi Y., Choi S., Kim J.H., Hossain M.S.A.

    ACS Applied Materials and Interfaces   14 巻 ( 2 ) 頁: 3418 - 3426   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acsami.1c19581

  191. Long-Lasting Self-Healing Surface Dewettability through the Rapid Regeneration of Surface Morphologies

    Nakamura S., Yamauchi Y., Hozumi A.

    Langmuir   38 巻 ( 24 ) 頁: 7611 - 7617   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acs.langmuir.2c00956

  192. Borophene: Two-dimensional Boron Monolayer: Synthesis, Properties, and Potential Applications

    Kaneti Y.V., Benu D.P., Xu X., Yuliarto B., Yamauchi Y., Golberg D.

    Chemical Reviews   122 巻 ( 1 ) 頁: 1000 - 1051   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acs.chemrev.1c00233

  193. Symmetry-Breaking Plasmonic Mesoporous Gold Nanoparticles with Large Pores

    Nugraha A.S., Guselnikova O., Henzie J., Na J., Hossain M.S.A., Dag Ö., Rowan A.E., Yamauchi Y.

    Chemistry of Materials   34 巻 ( 16 ) 頁: 7256 - 7270   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acs.chemmater.2c01125

  194. Nanoarchitectured Conjugated Microporous Polymers: State of the Art Synthetic Strategies and Opportunities for Adsorption Science

    Wan N., Chang Q., Hou F., Zhang S., Zang X., Zhao X., Wang C., Wang Z., Yamauchi Y.

    Chemistry of Materials   34 巻 ( 17 ) 頁: 7598 - 7619   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/acs.chemmater.2c00999

  195. Metal-Organic Frameworks: A Robust Platform for Creating Nanoarchitectured Carbon Materials

    Wang C., Yao Y., Li J., Yamauchi Y.

    Accounts of Materials Research   3 巻 ( 4 ) 頁: 426 - 438   2022年

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    記述言語:英語   出版者・発行元:American Chemical Society  

    DOI: 10.1021/accountsmr.1c00258

  196. Nanoarchitectured superparamagnetic iron oxide-doped mesoporous carbon nanozymes for glucose sensing

    Wahab M.A., Hossain S.M.A., Masud M.K., Park H., Ashok A., Mustapić M., Kim M., Patel D., Shahbazi M., Hossain M.S.A., Yamauchi Y., Kaneti Y.V.

    Sensors and Actuators B: Chemical   366 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.snb.2022.131980

  197. Multifunctional wearable thermal management textile fabricated by one-step sputtering

    Wang C., Zhang W., Xu X., Su J., Shi J., Amin M.A., Zhang J., Yamauchi Y.

    Nano Today   45 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.nantod.2022.101526

  198. Ion transport channels in redox flow deionization enable ultra-high desalination performance

    Lin P., Yang T., Li Z., Xia W., Xuan X., Sun X., Alshehri S.M., Ahamad T., Yamauchi Y., Xu X., Bando Y.

    Nano Energy   102 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier Ltd  

    DOI: 10.1016/j.nanoen.2022.107652

  199. Significant effect of synthesis methodologies of metal-organic frameworks upon the additively manufactured dual-mode triboelectric nanogenerator towards self-powered applications

    Hajra S., Sahu M., Sahu R., Padhan A.M., Alagarsamy P., Kim H.-G., Lee H., Oh S., Yamauchi Y., Kim H.J.

    Nano Energy   98 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier Ltd  

    DOI: 10.1016/j.nanoen.2022.107253

  200. MOF-on-MOF nanoarchitectures for selectively functionalized nitrogen-doped carbon-graphitic carbon/carbon nanotubes heterostructure with high capacitive deionization performance

    Zhang Y., Wu J., Zhang S., Shang N., Zhao X., Alshehri S.M., Ahamad T., Yamauchi Y., Xu X., Bando Y.

    Nano Energy   97 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier Ltd  

    DOI: 10.1016/j.nanoen.2022.107146

  201. Materials informatics-guided superior electrocatalyst: A case of pyrolysis-free single-atom coordinated with N-graphene nanomesh

    Xia W., Hou Z., Tang J., Li J., Chaikittisilp W., Kim Y., Muraoka K., Zhang H., He J., Han B., Yamauchi Y.

    Nano Energy   94 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier Ltd  

    DOI: 10.1016/j.nanoen.2021.106868

  202. Tailoring ZSM-5 zeolite porosity and acidity for efficient conversion of municipal solid waste to fuel

    Ahmed M.H., Batalha N., Xu J., Yamauchi Y., Konarova M.

    Microporous and Mesoporous Materials   330 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.micromeso.2021.111579

  203. N-doped hollow carbon nanoplates with mesoporous thin shells towards high-performance supercapacitors

    Lu X., Wang J., Li T., Ding B., Liu S., Henzie J., Amin M.A., Yuliarto B., Sugahara Y., Yamauchi Y.

    Journal of Power Sources   542 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.jpowsour.2022.231776

  204. Biomass-derived carbon doping to enhance the current carrying capacity and flux pinning of an isotopic Mg11B2 superconductor

    Shahbazi M., Hao Y., Patel D., Liang H., Yamauchi Y., Hossain M.S.A.

    Journal of Magnesium and Alloys   10 巻 ( 7 ) 頁: 1868 - 1877   2022年

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    記述言語:英語   出版者・発行元:National Engg. Reaserch Center for Magnesium Alloys  

    DOI: 10.1016/j.jma.2022.01.010

  205. Nanoarchitectonics of low-dimensional metal-organic frameworks toward photo/electrochemical CO2 reduction reactions

    Xuan X., Wang M., Zhang M., Kaneti Y.V., Xu X., Sun X., Yamauchi Y.

    Journal of CO2 Utilization   57 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier Ltd  

    DOI: 10.1016/j.jcou.2022.101883

  206. CeO2−x quantum dots decorated nitrogen-doped hollow porous carbon for supercapacitors

    Kar T., Casales-Díaz M., Ramos-Hernández J.J., Sotelo-Mazón O., Henao J., Valdez Rodríguez S., Godavarthi S., Liu S., Yamauchi Y., Kesarla M.K.

    Journal of Colloid and Interface Science   622 巻   頁: 147 - 155   2022年

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    記述言語:英語   出版者・発行元:Academic Press Inc.  

    DOI: 10.1016/j.jcis.2022.04.114

  207. Prussian blue analogue derived cobalt–nickel phosphide/carbon nanotube composite as electrocatalyst for efficient and stable hydrogen evolution reaction in wide-pH environment

    Ding Z., Yu H., Liu X., He N., Chen X., Li H., Wang M., Yamauchi Y., Xu X., Amin M.A., Lu T., Pan L.

    Journal of Colloid and Interface Science   616 巻   頁: 210 - 220   2022年

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    記述言語:英語   出版者・発行元:Academic Press Inc.  

    DOI: 10.1016/j.jcis.2022.02.039

  208. Flexible organohydrogel ionic skin with Ultra-Low temperature freezing resistance and Ultra-Durable moisture retention

    Peng W., Han L., Gao Y., Gong Z., Lu T., Xu X., Xu M., Yamauchi Y., Pan L.

    Journal of Colloid and Interface Science   608 巻   頁: 396 - 404   2022年

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    記述言語:英語   出版者・発行元:Academic Press Inc.  

    DOI: 10.1016/j.jcis.2021.09.125

  209. Polyaniline coated MOF-derived Mn2O3 nanorods for efficient hybrid capacitive deionization

    Li Y., Yin Y., Xie F., Zhao G., Han L., Zhang L., Lu T., Amin M.A., Yamauchi Y., Xu X., Zhu G., Pan L.

    Environmental Research   212 巻   2022年

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    記述言語:英語   出版者・発行元:Academic Press Inc.  

    DOI: 10.1016/j.envres.2022.113331

  210. Cu-based MOF-derived architecture with Cu/Cu2O nanospheres anchored on porous carbon nanosheets for efficient capacitive deionization

    Zhu G., Chen L., Lu T., Zhang L., Hossain M.S.A., Amin M.A., Yamauchi Y., Li Y., Xu X., Pan L.

    Environmental Research   210 巻   2022年

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    記述言語:英語   出版者・発行元:Academic Press Inc.  

    DOI: 10.1016/j.envres.2022.112909

  211. Metal–organic framework-derived heteroatom-doped nanoarchitectures for electrochemical energy storage: Recent advances and future perspectives

    Zhan F., Liu S., He Q., Zhao X., Wang H., Han M., Yamauchi Y., Chen L.

    Energy Storage Materials   52 巻   頁: 685 - 735   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.ensm.2022.08.035

  212. Template- and etching-free fabrication of two-dimensional hollow bimetallic metal-organic framework hexagonal nanoplates for ammonia sensing

    Chowdhury S., Torad N.L., Ashok A., Gumilar G., Chaikittisilp W., Xin R., Cheng P., Ul Hoque M.I., Wahab M.A., Karim M.R., Yuliarto B., Hossain M.S., Yamauchi Y., Kaneti Y.V.

    Chemical Engineering Journal   450 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2022.138065

  213. 1D-2D hybridization: Nanoarchitectonics for grain boundary-rich platinum nanowires coupled with MXene nanosheets as efficient methanol oxidation electrocatalysts

    Meng W., He H., Yang L., Jiang Q., Yuliarto B., Yamauchi Y., Xu X., Huang H.

    Chemical Engineering Journal   450 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2022.137932

  214. Covalent functionalization of Ti3C2T MXene flakes with Gd-DTPA complex for stable and biocompatible MRI contrast agent

    Neubertova V., Guselnikova O., Yamauchi Y., Olshtrem A., Rimpelova S., Čižmár E., Orendáč M., Duchon J., Volfova L., Lancok J., Herynek V., Fitl P., Ulbrich P., Jelinek L., Schneider P., Kosek J., Postnikov P., Kolska Z., Svorcik V., Chertopalov S., Lyutakov O.

    Chemical Engineering Journal   446 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2022.136939

  215. Metal-ion inserted vanadium oxide nanoribbons as high-performance cathodes for aqueous zinc-ion batteries

    Pang Z., Ding B., Wang J., Wang Y., Xu L., Zhou L., Jiang X., Yan X., Hill J.P., Yu L., Yamauchi Y.

    Chemical Engineering Journal   446 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2022.136861

  216. Ultra-stable sodium ion storage of biomass porous carbon derived from sugarcane

    Kim M., Fernando J.F.S., Li Z., Alowasheeir A., Ashok A., Xin R., Martin D., Kumar Nanjundan A., Golberg D.V., Yamauchi Y., Amiralian N., Li J.

    Chemical Engineering Journal   445 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2022.136344

  217. Nanoarchitecturing bimetallic manganese cobaltite spinels for sonocatalytic degradation of oxytetracycline

    Hassandoost R., Kotb A., Movafagh Z., Esmat M., Guegan R., Endo S., Jevasuwan W., Fukata N., Sugahara Y., Khataee A., Yamauchi Y., Ide Y., Doustkhah E.

    Chemical Engineering Journal   431 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2021.133851

  218. Eliminating tetracycline antibiotics matrix via photoactivated sulfate radical-based advanced oxidation process over the immobilized MIL-88A: Batch and continuous experiments

    Wang J.-S., Yi X.-H., Xu X., Ji H., Alanazi A.M., Wang C.-C., Zhao C., Kaneti Y.V., Wang P., Liu W., Yamauchi Y.

    Chemical Engineering Journal   431 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2021.133213

  219. Nanoarchitectonics from 2D to 3D: MXenes-derived nitrogen-doped 3D nanofibrous architecture for extraordinarily-fast capacitive deionization

    Ding Z., Xu X., Li J., Li Y., Wang K., Lu T., Hossain M.S.A., Amin M.A., Zhang S., Pan L., Yamauchi Y.

    Chemical Engineering Journal   430 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2021.133161

  220. Defect engineering induced heterostructure of Zn-birnessite@spinel ZnMn2O4 nanocrystal for flexible asymmetric supercapacitor

    Lyu L., Kim C.W., Seong K.-D., Kang J., Liu S., Yamauchi Y., Piao Y.

    Chemical Engineering Journal   430 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2021.133115

  221. Transforming red mud into an efficient Acid-Base catalyst by hybridization with mesoporous ZSM-5 for Co-pyrolysis of biomass and plastics

    HM Ahmed M., Batalha N., ALOthman Z.A., Yamauchi Y., Valentino Kaneti Y., Konarova M.

    Chemical Engineering Journal   430 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2021.132965

  222. Super-theoretical capacity mechanism of hollow nano-corn cob-like cobalt oxide

    Xiang Y., Xu Y., Yang Z., Na J., Alowasheeir A., Albaqami M.D., Ahmed Awadh Bahajjaj A., Wang S., Yu J., Yamauchi Y.

    Chemical Engineering Journal   430 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2021.132700

  223. Gram-Scale production of Cu3P-Cu2O Janus nanoparticles into nitrogen and phosphorous doped porous carbon framework as bifunctional electrocatalysts for overall water splitting

    Zhu J., Jiang E., Wang X., Pan Z., Xu X., Ma S., Kang Shen P., Pan L., Eguchi M., Nanjundan A.K., Shapter J., Yamauchi Y.

    Chemical Engineering Journal   427 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.cej.2021.130946

  224. Nanoarchitectonics of MXene/semiconductor heterojunctions toward artificial photosynthesis via photocatalytic CO2 reduction

    Liu X., Chen T., Xue Y., Fan J., Shen S., Hossain M.S.A., Amin M.A., Pan L., Xu X., Yamauchi Y.

    Coordination Chemistry Reviews   459 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier B.V.  

    DOI: 10.1016/j.ccr.2022.214440

  225. Lignocellulosic plant cell wall variation influences the structure and properties of hard carbon derived from sorghum biomass

    Afzal R.A., Pennells J., Yamauchi Y., Annamalai P.K., Nanjundan A.K., Martin D.J.

    Carbon Trends   7 巻   2022年

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    記述言語:英語   出版者・発行元:Elsevier Ltd  

    DOI: 10.1016/j.cartre.2022.100168

  226. Nitrogen and Sulfur Co-Doped Hierarchically Porous Carbon Nanotubes for Fast Potassium Ion Storage

    Jin X., Wang X., Liu Y., Kim M., Cao M., Xie H., Liu S., Wang X., Huang W., Nanjundan A.K., Yuliarto B., Li X., Yamauchi Y.

    Small   18 巻 ( 42 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202203545

  227. Superstructures of Zeolitic Imidazolate Frameworks to Single- and Multiatom Sites for Electrochemical Energy Conversion

    Patil R., Liu S., Yadav A., Khaorapapong N., Yamauchi Y., Dutta S.

    Small   18 巻 ( 52 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202203147

  228. Hydrogel Nanoarchitectonics: An Evolving Paradigm for Ultrasensitive Biosensing

    Nishat Z.S., Hossain T., Islam M.N., Phan H.-P., Wahab M.A., Moni M.A., Salomon C., Amin M.A., Sina A.A.I., Hossain M.S.A., Kaneti Y.V., Yamauchi Y., Masud M.K.

    Small   18 巻 ( 26 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202107571

  229. Tailoring the Surface and Interface Structures of Copper-Based Catalysts for Electrochemical Reduction of CO2 to Ethylene and Ethanol

    Zhang Z., Bian L., Tian H., Liu Y., Bando Y., Yamauchi Y., Wang Z.-L.

    Small   18 巻 ( 18 )   2022年

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    記述言語:英語   出版者・発行元:John Wiley and Sons Inc  

    DOI: 10.1002/smll.202107450

  230. Hollow carbon architectures with mesoporous shells via self-sacrificial templating strategy using metal-organic frameworks 査読有り

    Tao Li, Bing Ding, Victor Malgras, Jongbeom Na, Zongyi Qin, Xiangjun Lu, Yoshio Bando, Hiroki Nara, Zeid A. Alothman, Jie Wang, Yusuke Yamauchi

    CHEMICAL ENGINEERING JOURNAL   420 巻   2021年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ELSEVIER SCIENCE SA  

    The rational design and fabrication of ordered mesoporous materials with highly exposed surface area are of great significance to address the fundamental challenges in electrochemistry-related applications by providing more active sites and fast ion/gas diffusion channel. In this work, a self-template method is reported to prepare hollow-structured mesoporous carbon (HOMC) nanoplates by depositing resol-F127 micelles onto the surface of metal-organic-framework (MOF) nanoplates, followed by hydrothermal reaction and carbonization. The parameters influencing the morphology and microstructure of the HOMC materials, i.e., the MOF-to-resol-F127 ratio and the concentration of resol-F127 micelles, are systematically investigated. Fe-doped HOMC (Fe/ HOMC) is obtained after carbonization, as a result from adding FeCl3 during the hydrothermal reaction. Benefiting from morphological aspects, such as the nanoplate shape, the hollow structure, and mesoporous walls, the Fe/HOMC exhibits higher electrocatalytic activity and efficiency than the commercial Pt/C during oxygen reduction reaction (ORR). In addition, when compared to traditional Pt/C benchmark, the Fe/HOMC shows a superior durability and tolerance to methanol poisoning while operating for ORR. The assembled Zn-air battery possesses high power densities with excellent cycling stability. The strategy proposed here can provide a new avenue for the design of ordered mesoporous materials with hollow structure for a wide variety of applications.

    DOI: 10.1016/j.cej.2020.127635

    Web of Science

    Scopus

  231. Enantioselective SERS sensing of pseudoephedrine in blood plasma biomatrix by hierarchical mesoporous Au films coated with a homochiral MOF

    Olga Guselnikova, Hyunsoo Lim, Jongbeom Na, Miharu Eguchi, Hyun-Jong Kim, Roman Elashnikov, Pavel Postnikov, Vaclav Svorcik, Oleg Semyonov, Elena Miliutina, Oleksiy Lyutakov, Yusuke Yamauchi

    Biosensors and Bioelectronics   180 巻   2021年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier Ltd  

    Here, we present a new family of hierarchical porous hybrid materials as an innovative tool for ultrasensitive and selective sensing of enantiomeric drugs in complex biosamples via chiral surface-enhanced Raman spectroscopy (SERS). Hierarchical porous hybrid films were prepared by the combination of mesoporous plasmonic Au films and microporous homochiral metal-organic frameworks (HMOFs). The proposed hierarchical porous substrates enable extremely low limit of detection values (10−12 M) for pseudoephedrine in undiluted blood plasma due to dual enhancement mechanisms (physical enhancement by the mesoporous Au nanostructures and chemical enhancement by HMOF), chemical recognition by HMOF, and a discriminant function for bio-samples containing large biomolecules, such as blood components. We demonstrate the effect of each component (mesoporous Au and microporous AlaZnCl (HMOF)) on the analytical performance for sensing. The growth of AlaZnCl leads to an increase in the SERS signal (by around 17 times), while the use of mesoporous Au leads to an increase in the signal (by up to 40%). In the presence of a complex biomatrix (blood serum or plasma), the hybrid hierarchical porous substrate provides control over the transport of the molecules inside the pores and prevents blood protein infiltration, provoking competition with existing plasmonic materials at the limit of detection and enantioselectivity in the presence of a multicomponent biomatrix.

    DOI: 10.1016/j.bios.2021.113109

    Scopus

    PubMed

  232. Soft template-mediated coupling construction of sandwiched mesoporous PPy/Ag nanoplates for rapid and selective NH3sensing

    Facai Wei, Yonghui Zhong, Hao Luo, Yong Wu, Jianwei Fu, Qingguo He, Jiangong Cheng, Jongbeom Na, Yusuke Yamauchi, Shaohua Liu

    Journal of Materials Chemistry A   9 巻 ( 13 ) 頁: 8308 - 8316   2021年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    We have developed a simple soft template-mediated coupling construction approach to achieve an unexplored sandwiched mesoporous polypyrrole nanocoating/single-crystal Ag nanoplate hybrid by a one-step inorganic/organic redox reaction at the liquid interface, and the hybrid possesses an adjustable meso-structure and architecture, strong near-infrared absorption and Raman enhancement effect, and outstanding chemical sensing performance.

    DOI: 10.1039/d1ta01110c

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  233. Single Atom-Based Nanoarchitectured Electrodes for High-Performance Lithium-Sulfur Batteries 査読有り

    Jie Wang, Bing Ding, Xiangjun Lu, Hiroki Nara, Yoshiyuki Sugahara, Yusuke Yamauchi

    ADVANCED MATERIALS INTERFACES   8 巻 ( 8 )   2021年4月

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    記述言語:英語   出版者・発行元:WILEY  

    Lithium-sulfur (Li-S) batteries have attracted particular interest as promising next-generation energy storage devices because of their high theoretical energy density and low cost. The real performance of Li-S batteries is, however, far from achieving the expected values, even when using a porous, highly conductive host of sulfurs to improve their electric conductivity and accommodate their volume changes. The performance restrictions are mainly attributable to the slow reaction kinetics of converting lithium polysulfides species to lithium sulfide and elemental sulfur during the charging and discharging processes, respectively. Recent studies show that single-atom catalysts (SACs) with superior catalytic activity offer an effective strategy for solving this tough issue. The recent advances in utilizing SACs for Li-S batteries, which involve catalyst preparation, battery performance, and mechanistic insights, are summarized here. Modification of the cathodes and separators with SACs helps to absorb polysulfide and promote their conversion kinetics, thus suppressing the notorious "shuttle effect." In addition, the introduction of SACs into Li-S batteries promotes the efficiency of Li stripping/plating and prevents the growth of Li dendrites. Overall, the boost effects of SAC on Li-S batteries performance are noticeable and deserving of more research attention to develop better Li-S batteries.

    DOI: 10.1002/admi.202002159

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  234. Core-Shell MOF@COF Motif Hybridization: Selectively Functionalized Precursors for Titanium Dioxide Nanoparticle-Embedded Nitrogen-Rich Carbon Architectures with Superior Capacitive Deionization Performance

    Xiaohong Liu, Shuaihua Zhang, Guilin Feng, Zhen-Guo Wu, Dong Wang, Munirah D. Albaqami, Benhe Zhong, Yanxiao Chen, Xiaodong Guo, Xingtao Xu, Yusuke Yamauchi

    Chemistry of Materials   33 巻 ( 5 ) 頁: 1657 - 1666   2021年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society  

    Metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs) are promising precursors for preparing high-performance carbonaceous materials for capacitive deionization (CDI). However, the simple pyrolysis of single MOFs or COFs usually leads to carbonaceous materials with disadvantages in salt adsorption capacity (SAC) and cycling stability, which are unfavorable to the further development of CDI. To address this issue, herein, we report the directed core-shell motif hybridization of COFs on MOFs to obtain selectively functionalized carbonaceous precursors, NH2-MIL-125(Ti)@TP-DQ COF, which then produce titanium dioxide nanoparticle-embedded nitrogen-rich carbon architectures, called TiO2@COF, via pyrolysis. It is evidently expected that the resulting TiO2@COF possesses several advantageous features: (1) the inner core, which contains titanium dioxide nanoparticles, provides abundant faradic active sites for ion accommodation contributing additionally to the high SAC
    (2) the outer capacitive shell, which is fibrous nitrogen-rich carbon, not only protects the inner core from the harsh environment of the solution and stabilizes the cycling performance but also affords plentiful nitrogen dopants for enhanced pseudocapacitive capacity and abundant pores for ion adsorption and electrolyte permeation
    and (3) the outer COF-derived fibers interconnect with each other, giving rise to increasing electrical conductivity. As a result, TiO2@COF delivers a high SAC of 33.66 mg g-1 and favorable cycling stability over 40 cycles, significantly exceeding those of CDI electrodes derived from single MOFs or COFs. This work is expected to enrich the construction of selectively functionalized carbonaceous particles from MOFs and COFs and may also endow multiple promising applications of core-shell motif hybrids.

    DOI: 10.1021/acs.chemmater.0c04129

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  235. Auto-programmed synthesis of metallic aerogels: Core-shell Cu@Fe@Ni aerogels for efficient oxygen evolution reaction

    Bo Jiang, Zhe Wan, Yunqing Kang, Yanna Guo, Joel Henzie, Jongbeom Na, Hexing Li, Shengyao Wang, Yoshio Bando, Yoshio Sakka, Yusuke Yamauchi

    Nano Energy   81 巻   2021年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier Ltd  

    Porous metallic aerogels are a new class of cutting-edge materials useful in catalysis because they combine high conductivity with low density and high surface area. However, the exploration of transition metal-based aerogels with core-shell architectures remains a fundamental challenge. Here, we report a one-step auto-programmed synthesis method to generate a core-shell Cu@Fe@Ni metallic aerogel. Electroactivating (EA) the core-shell Cu@Fe@Ni causes the Fe inner shell to migrate into the Ni outer shell and forms a highly-active catalytic hydroxide on the surface of the aerogel. The resulting EA-Cu@Fe@Ni catalysts exhibited a low OER overpotential of 240 mV at 10 mA cm-2, which is much smaller than bimetallic CuNi (320 mV), CuFe (390 mV), and RuO2 (271 mV). In-situ Raman measurements confirm that the catalyst's outer layer is composed of NiOOH doped with Fe during the electrochemical activation process, resulting in the high OER performance. This work describes the first example of a trimetallic core-shell aerogel synthesized in one step and enables another strategy for designing highly active metals/metal oxide electrocatalysts via surface reconstruction.

    DOI: 10.1016/j.nanoen.2020.105644

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  236. Electrochemical Activity of Nitrogen-Containing Groups in Organic Electrode Materials and Related Improvement Strategies 査読有り

    Qianchuan Yu, Zhihuan Xue, Meichen Li, Peimeng Qiu, Changgang Li, Shengping Wang, Jingxian Yu, Hiroki Nara, Jongbeom Na, Yusuke Yamauchi

    ADVANCED ENERGY MATERIALS   11 巻 ( 7 )   2021年2月

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    記述言語:英語   出版者・発行元:WILEY-V C H VERLAG GMBH  

    In recent years, due to their structural diversity, adjustability, versatility, and excellent electrochemical properties, organic compounds with nitrogen-containing groups (OCNs) have become some of the most promising organic electrode materials. The nitrogen-containing groups acting as electrochemical active sites include carbon-nitrogen groups, nitrogen-nitrogen groups, nitrogen-oxygen groups in OCNs, and nitrogen-containing groups in covalent organic frameworks. The molecular structure regulation of OCNs with nitrogen-containing groups acting as electrochemical active centers can suppress dissolution in electrolytes, increase electronic conductivity, and improve the kinetics of redox reactions. The kinetics behavior and electrochemical characteristics of OCN electrode materials in alkali metal rechargeable batteries with organic electrolytes are reviewed, and the related relationships between the structure and electrochemical properties of OCNs are the core of this review. Herein, the electrochemical reaction mechanisms and the strategies to improve the electrochemical activity of nitrogen-containing groups in OCNs are clarified, and the conjugate molecular structure of OCNs is shown to be an important direction for improvement. These results will have implications for research on electrode materials and provide more choices for rechargeable batteries. Moreover, this work will guide the study of more efficient OCNs that can be used as electrode materials.

    DOI: 10.1002/aenm.202002523

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  237. Metal-incorporated mesoporous oxides: Synthesis and applications

    Bishnu Prasad Bastakoti, Debasish Kuila, Carlos Salomon, Muxina Konarova, Miharu Eguchi, Jongbeom Na, Yusuke Yamauchi

    Journal of Hazardous Materials   401 巻   2021年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier B.V.  

    Mesoporous oxides are outstanding metal nanoparticle catalyst supports owing to their well-defined porous structures. Such mesoporous architectures not only prevent the aggregation of metal nanoparticles but also enhance their catalytic performance. Metal/metal oxide heterojunctions exhibit unique chemical and physical properties because of the surface reconstruction around the junction and electron transfer/interaction across the interface. This article reviews the methods used for synthesizing metal-supported hybrid nanostructures and their applications as catalysts for environmental remediation and sensors for detecting hazardous materials.

    DOI: 10.1016/j.jhazmat.2020.123348

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  238. Fabrication and characterization of prussian blue-derived iron carbide-iron oxide hybrid on reduced graphene oxide nanosheets

    Alowasheeir Azhar, Jacob Earnshaw, Mohamed Barakat Zakaria, Ping Cheng, Yusuf Valentino Kaneti, Md. Shahriar A. Hossain, Saad M. Alshehri, Tansir Ahamad, Yusuke Yamauchi, Jongbeom Na

    KONA Powder and Particle Journal   38 巻   頁: 260 - 268   2021年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Hosokawa Powder Technology Foundation  

    This work demonstrates the fabrication of a nanoporous iron carbide-iron oxide/reduced graphene oxide (IC-IO/ rGO) hybrid via a controlled one-step thermal treatment of Prussian blue (PB)/GO hybrid at 450 °C under N2 flow. The PB/GO hybrid is initially prepared through the in-situ deposition of PB nanoparticles on the GO sheets through electrostatic interactions. The morphological analysis of the hybrid reveals the uniform coverage of the rGO sheets by IC-IO nanoparticles and the even distribution of carbon (C), oxygen (O), and iron (Fe) on the rGO nanosheets. As a result of the hybrid composition and controlled morphology, the surface area of the obtained IC-IO/rGO hybrid (~40 m2 /g) is significantly enhanced compared to those of the calcined GO sheets and PB nanoparticles (without GO).

    DOI: 10.14356/kona.2021015

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  239. Tunable Concave Surface Features of Mesoporous Palladium Nanocrystals Prepared from Supramolecular Micellar Templates 査読有り

    Muhammad Iqbal, Yena Kim, Adhitya Gandaryus Saputro, Ganes Shukri, Brian Yuliarto, Hyunsoo Lim, Hiroki Nara, Asma A. Alothman, Jongbeom Na, Yoshio Bando, Yusuke Yamauchi

    ACS APPLIED MATERIALS & INTERFACES   12 巻 ( 46 ) 頁: 51357 - 51365   2020年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:AMER CHEMICAL SOC  

    Concave metallic nanocrystals with a high density of low-coordinated atoms on the surface are essential for the realization of unique catalytic properties. Herein, mesoporous palladium nanocrystals (MPNs) that possess various degrees of curvature are successfully synthesized following an approach that relies on a facile polymeric micelle assembly approach. The asprepared MPNs exhibit larger surface areas compared to conventional Pd nanocrystals and their nonporous counterparts. The MPNs display enhanced electrocatalytic activity for ethanol oxidation when compared to state-of-the-art commercial palladium black and conventional palladium nanocubes used as catalysts. Interestingly, as the degree of curvature increases, the surface-area-normalized activity also increases, demonstrating that the curvature of MPNs and the presence of high-index facets are crucial considerations for the design of electrocatalysts.

    DOI: 10.1021/acsami.0c13136

    Web of Science

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  240. Core-shell motif construction: Highly graphitic nitrogen-doped porous carbon electrocatalysts using MOF-derived carbon@COF heterostructures as sacrificial templates

    Shuaihua Zhang, Wei Xia, Qian Yang, Yusuf Valentino Kaneti, Xingtao Xu, Saad M. Alshehri, Tansir Ahamad, Md. Shahriar A. Hossain, Jongbeom Na, Jing Tang, Yusuke Yamauchi

    Chemical Engineering Journal   396 巻   2020年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier B.V.  

    The design and construction of superior electrocatalysts based on covalent organic frameworks (COFs) for oxygen reduction reaction (ORR) have attracted increasing interest. However, COFs typically exhibit low electrocatalytic activity as a result of their poor electrical conductivity. In this study, a highly graphitic nitrogen-doped porous carbon electrocatalyst (GC@COF-NC) is fabricated by utilizing metal-organic framework (MOF)-derived GC@COF core-shell heterostructure as a sacrificial template. Featured with high conductivity, hierarchical porosity (micropores and mesopores), and abundant N doping, the resulting GC@COF-NC heterostructure manifests a high activity for ORR in an alkaline solution with exceptional onset and half-wave potentials, direct four-electron pathway, and good long-term stability. This synthetic strategy is expected to open a new avenue toward the construction of other COF-derived heteroatom-doped graphitic carbon heterostructures with promising potential for electrocatalytic applications.

    DOI: 10.1016/j.cej.2020.125154

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  241. Multiscale structural optimization: Highly efficient hollow iron-doped metal sulfide heterostructures as bifunctional electrocatalysts for water splitting

    Yanna Guo, Xin Zhou, Jing Tang, Shunsuke Tanaka, Yusuf Valentino Kaneti, Jongbeom Na, Bo Jiang, Yusuke Yamauchi, Yoshio Bando, Yoshiyuki Sugahara

    Nano Energy   75 巻   2020年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier Ltd  

    Hollow iron-doped Co–Mo sulfide (H–Fe–CoMoS) heterostructures with a highly efficient water-splitting catalytic ability were achieved by applying a multiscale optimization strategy. Morphological and compositional optimization on a macroscale achieved by assembling a bimetallic Co–Mo sulfide (CoMoS) heterostructure in a hollow-structured composite (H–CoMoS) gave the electrocatalyst an ability to conduct enhanced bifunctional activities for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Intrinsic electronic structure optimization on a microscale achieved by introducing a small amount of iron (Fe) into H–CoMoS (H–Fe–CoMoS) further improved its catalytic activity and stability. Electrochemical measurements revealed that this multiscale structural optimization promoted enhanced electrical conductivity and increased the number of electrochemical active sites on the H–Fe–CoMoS, leading to its remarkable electrocatalytic performance as a bifunctional catalyst for both HER and OER in alkaline media. The H–Fe–CoMoS showed overpotentials of 282 mV and 137 mV to achieve a current density of 10 mA cm−2 for OER and HER, respectively, which are comparable to the performance of the benchmark OER catalyst RuO2 and HER catalyst Pt/C.

    DOI: 10.1016/j.nanoen.2020.104913

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  242. High-performance capacitive deionization by lignocellulose-derived eco-friendly porous carbon materials

    Ting Lu, Xingtao Xu, Shuaihua Zhang, Likun Pan, Yong Wang, Saad M. Alshehri, Tansir Ahamad, Minjun Kim, Jongbeom Na, Md. Shahriar Hossain, Joseph G. Shapter, Yusuke Yamauchi

    Bulletin of the Chemical Society of Japan   93 巻 ( 8 ) 頁: 1014 - 1019   2020年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemical Society of Japan  

    The synthesis of high-performance porous carbon materials via carbonization of environment-friendly biomass fits perfectly with the concepts of sustainability and green chemistry. Herein, we report lignocellulose-derived porous carbon materials and their high capacitive deionization (CDI) performance, achieving a high salt adsorption capacity of 12.5 mg g11 and good cycling stability. The preparation of porous carbon materials via direct carbonization of lignocellulose provides a number of advantages, including cost-effectiveness, high production yields, and environment-friendliness, which are ideal for industrial application of CDI. This work not only suggests novel insights to design and prepare high-performance carbon materials but also highlights the significance of green chemistry using nature-provided biomass materials to synthesize porous carbon materials.

    DOI: 10.1246/bcsj.20200055

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  243. Tailored Nanoarchitecturing of Microporous ZIF-8 to Hierarchically Porous Double-Shell Carbons and Their Intrinsic Electrochemical Property

    Minjun Kim, Teahoon Park, Chaohai Wang, Jing Tang, Hyunsoo Lim, Md Shahriar A. Hossain, Muxina Konarova, Jin Woo Yi, Jongbeom Na, Jeonghun Kim, Yusuke Yamauchi

    ACS Applied Materials and Interfaces   12 巻 ( 30 ) 頁: 34065 - 34073   2020年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society  

    Mesostructured polydopamine (PDA) coating has been successfully achieved on the surface of zeolitic imidazolate framework-8 (ZIF-8) particles by incorporating Pluronic F127 (with a pore-expanding agent, 1,3,5-trimethylbenzene) as a pore-directing agent during dopamine polymerization. Upon pyrolysis at high temperatures, mesostructured PDA-coated ZIF-8 particles become hierarchically porous double-shell carbons (HPDCs) with a wide pore size distribution ranging from micro- A nd meso-to macropores. The formation of a hollow inner shell progresses initially with the shrinkage of ZIF-8 at the periphery where the interface interactions with mesostructured PDA exist, and then the subsequent disintegration of the ZIF-8 core at higher temperatures occurs. Our HPDCs prepared in this study feature physical and electrochemical advantages of hierarchically porous carbons such as high electrochemically accessible surface area, short diffusion distance, and high mass-transfer rate, thus demonstrating significantly improved ion diffusion and surface-enhanced high specific capacitance at high charge-discharge rates. HPDC5.0 therefore exhibits the capacitance retention of up to 76.7% from 1 to 10 A g-1 and maximum specific capacitance of 344.7 F g-1 at 1 mV s-1. It also possesses superior electrochemical stability with about 108% capacitance retention even after 10,000 consecutive cycles of galvanostatic charge-discharge at 10 A g-1.

    DOI: 10.1021/acsami.0c07467

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  244. Mesoporous trimetallic PtPdAu alloy films toward enhanced electrocatalytic activity in methanol oxidation: Unexpected chemical compositions discovered by Bayesian optimization

    Asep Sugih Nugraha, Guillaume Lambard, Jongbeom Na, Md Shahriar A. Hossain, Toru Asahi, Watcharop Chaikittisilp, Yusuke Yamauchi

    Journal of Materials Chemistry A   8 巻 ( 27 ) 頁: 13532 - 13540   2020年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    There is growing interest in developing mesoporous metallic alloys for electrochemical applications such as catalysts in fuel cells and batteries. As is well known, the chemical compositions of alloys can significantly affect their electrochemical properties. Although tuning the chemical compositions of mesoporous metallic alloys for enhancing the electrochemical activity has been reported, they have mostly been limited to binary components partly because experimental exploration over possible multi-compositional spaces is a time-consuming process. Here, we describe, for the first time, the application of the active learning scheme using Bayesian optimization for the exploratory search of the chemical compositions of mesoporous trimetallic PtPdAu alloys with optimum catalytic activity in the electrocatalytic oxidation of methanol. Unexpectedly, it was found that the PtPdAu alloys yielding the highest catalytic activity contain only a small percentage of Au. These compositions were discovered by performing only 47 experiments, less than 1% of all possible compositions in our experimental design. Our current approach is highly efficient and would be applicable to any system to accelerate the discovery of novel materials.

    DOI: 10.1039/d0ta04096g

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  245. Layer-by-Layer Motif Heteroarchitecturing of N,S-Codoped Reduced Graphene Oxide-Wrapped Ni/NiS Nanoparticles for the Electrochemical Oxidation of Water

    Mohamed Barakat Zakaria, Yanna Guo, Jongbeom Na, Rafat Tahawy, Toyohiro Chikyow, Waleed A. El-Said, Deia A. El-Hady, Wael Alshitari, Yusuke Yamauchi, Jianjian Lin

    ChemSusChem   13 巻 ( 12 ) 頁: 3269 - 3276   2020年6月

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    掲載種別:研究論文(学術雑誌)  

    A new heterostructured material is synthesized with lamellar arrangements in nanoscale precision through an innovative synthetic approach. The self-assembled Ni-based cyano-bridged coordination polymer flakes (Ni-CP) and graphene oxide (GO) nanosheets with a layered morphology (Ni-CP/GO) are used as precursors for the synthesis of multicomponent hybrid materials. Annealing of Ni-CP/GO in nitrogen at 450 °C allows the formation of Ni3C/rGO nanocomposites. Grinding Ni-CP/GO and thiourea and annealing under the same conditions produces N,S-codoped reduced GO-wrapped NiS2 flakes (NiS2/NS-rGO). Interestingly, further heating up to 550 °C allows the phase transformation of NiS2 into NiS accompanied by the formation of a face-centered cubic (FCC-Ni) metal phase between NS-rGO layers (FCC-Ni-NiS/NS-rGO). Among all the materials, the resulting FCC-Ni-NiS/NS-rGO exhibits good electrocatalytic activity and stability toward the oxygen evolution reaction (OER) owing to the synergistic effect of multiphases, the well-designed alternating layered structures on the nanoscale with abundant active sites.

    DOI: 10.1002/cssc.202000159

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  246. Controlled synthesis of mesoporous Pt, Pt-Pd and Pt-Pd-Rh nanoparticles in aqueous nonionic surfactant solution

    Tomota Nagaura, Teahoon Park, Hyunsoo Lim, Jianjian Lin, Muhammad Iqbal, Saad M. Alshehri, Tansir Ahamad, Yusuf Valentino Kaneti, Jin Woo Yi, Yena Kim, Jongbeom Na, Yusuke Yamauchi

    Bulletin of the Chemical Society of Japan   93 巻 ( 9 ) 頁: 455 - 460   2020年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemical Society of Japan  

    To date, a wide variety of mesoporous metals has been synthesized using self-assembly of polymeric micelles for catalytic and sensing applications. However, systematic study of trimetallic mesoporous alloys has rarely been performed due to their complex nature. Herein, we demonstrate the synthesis of mesoporous PdPtRh particles by a chemical reduction process with the assistance of a block copolymer, Pluronicμ F127. Furthermore, we have also systematically characterized these alloys and evaluated their catalytic performance for methanol oxidation reaction (MOR), in comparison to mesoporous Pt and PdPt particles. Among all the prepared catalysts, the mesoporous PdPtRh sample shows the highest electrocatalytic performance for MOR with high conversion efficiency and tolerance for intermediate generation as well as excellent stability.

    DOI: 10.1246/bcsj.20200128

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  247. Unprecedented capacitive deionization performance of interconnected iron-nitrogen-doped carbon tubes in oxygenated saline water

    Xingtao Xu, Jing Tang, Yusuf Valentino Kaneti, Haibo Tan, Tao Chen, Likun Pan, Tao Yang, Yoshio Bando, Yusuke Yamauchi

    Materials Horizons   7 巻 ( 5 ) 頁: 1404 - 1412   2020年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    The exploration of new carbon materials to overcome the rapid performance decay of common carbon materials in oxygenated saline water (i.e., natural saline water) is the biggest challenge for the industrial application of the capacitive deionization (CDI) technology. In this work, we first report the layer-by-layer motif synthesis of 3D interconnected metal-organic framework (MOF) tubes and the derived nitrogen-iron-doped carbon tubes (3D-FeNC tubes) by using continuous polymeric fibers as templates. The elaborately designed 3D-FeNC tubes exhibit multiple advantages, including fast ionic diffusion (originating from the 1D hollow structure of the tubes), efficient electronic pathways and abundant active sites (arising from the 3D interconnected carbon frameworks), which are beneficial for enhancing the oxygen reduction ability. As a consequence, the as-prepared 3D-FeNC tubes exhibit an unprecedented CDI performance in oxygenated saline water with an exceptional salt adsorption capacity of 40.70 mg g-1 and ultrahigh capacity retention of 93.82% even after 200 cycles, highlighting the significance of morphological control and the benefits of hollow structured materials.

    DOI: 10.1039/c9mh01829h

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  248. Mesoporous Iron-doped MoS2/CoMo2S4 Heterostructures through Organic–Metal Cooperative Interactions on Spherical Micelles for Electrochemical Water Splitting 査読有り

    Yanna Guo, Jing Tang, Joel Henzie, Bo Jiang, Wei Xia, Tao Chen, Yoshio Bando, Yong-Mook Kang, Md. Shahriar A. Hossain, Yoshiyuki Sugahara, Yusuke Yamauchi

    ACS Nano   14 巻 ( 4 ) 頁: 4141 - 4152   2020年4月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society (ACS)  

    DOI: 10.1021/acsnano.9b08904

  249. Mesoscopic Architectures Made of Electrically Charged Binary Colloidal Nanosheets in Aqueous System 査読有り

    Teruyuki Nakato, Atsushi Takahashi, Shinya Terada, Shogo Yamaguchi, Emiko Mouri, Morio Shintate, Shinya Yamamoto, Yusuke Yamauchi, Nobuyoshi Miyamoto

    Langmuir   35 巻 ( 45 ) 頁: 14543 - 14552   2019年11月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society ({ACS})  

    DOI: 10.1021/acs.langmuir.9b02474

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  250. Defect-Rich Graphene Nanomesh Produced by Thermal Exfoliation of Metal–Organic Frameworks for the Oxygen Reduction Reaction

    Wei Xia, Jing Tang, Jingjing Li, Shuaihua Zhang, Kevin C.-W. Wu, Jianping He, Yusuke Yamauchi

    Angewandte Chemie - International Edition   58 巻 ( 38 ) 頁: 13354 - 13359   2019年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley-VCH Verlag  

    Although graphene nanomesh is an attractive 2D carbon material, general synthetic routes to produce functional graphene nanomesh in large-scale are complex and tedious. Herein, we elaborately design a simple two-step dimensional reduction strategy for exploring nitrogen-doped graphene nanomesh by thermal exfoliation of crystal- and shape-modified metal-organic frameworks (MOFs). MOF nanoleaves with 2D rather than 3D crystal structure are used as the precursor, which are further thermally unraveled into nitrogen-doped graphene nanomesh by using metal chlorides as the exfoliators and etching agent. The nitrogen-doped graphene nanomesh has a unique ultrathin two-dimensional morphology, high porosity, rich and accessible nitrogen-doped active sites, and defective graphene edges, contributing to an unprecedented catalytic activity for the oxygen reduction reaction (ORR) in acid electrolytes. This approach is suitable for scalable production.

    DOI: 10.1002/anie.201906870

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  251. Mesoporous palladium–boron alloy nanospheres

    Hao Lv, Lizhi Sun, Dongdong Xu, Joel Henzie, Yusuke Yamauchi, Ben Liu

    Journal of Materials Chemistry A   7 巻 ( 43 ) 頁: 24877 - 24883   2019年

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry ({RSC})  

    DOI: 10.1039/C9TA09822D

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  252. Hollow Porous Heterometallic Phosphide Nanocubes for Enhanced Electrochemical Water Splitting

    Yanna Guo, Jing Tang, Zhongli Wang, Yoshiyuki Sugahara, Yusuke Yamauchi

    Small   14 巻 ( 44 )   2018年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley-VCH Verlag  

    Highly efficient earth-abundant electrocatalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are of great importance for renewable energy conversion systems. Herein, hollow porous heterometallic phosphide nanocubes are developed as a highly active and robust catalyst for electrochemical water splitting via one-step phosphidation of a NiCoFe Prussian blue analogue. Through modulation of the composition of metals in the precursors, the optimal NiCoFeP exhibiting increased electrical conductivity and abundant electrochemically active sites, leading to high electrocatalytic activities and outstanding kinetics for both HER and OER, is successfully obtained. NiCoFeP shows low overpotentials of 273 mV for OER and 131 mV for HER at a current density of 10 mA cm−2 and quite low Tafel slopes of 35 mV dec−1 for OER and 56 mV dec−1 for HER.

    DOI: 10.1002/smll.201802442

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  253. Mesoporous Metallic Iridium Nanosheets

    Bo Jiang, Yanna Guo, Jeonghun Kim, Andrew E. Whitten, Kathleen Wood, Kenya Kani, Alan E. Rowan, Joel Henzie, Yusuke Yamauchi

    Journal of the American Chemical Society   140 巻 ( 39 ) 頁: 12434 - 12441   2018年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society  

    Two-dimensional (2D) metals are an emerging class of nanostructures that have attracted enormous research interest due to their unusual electronic and thermal transport properties. Adding mesopores in the plane of ultrathin 2D metals is the next big step in manipulating these structures because increasing their surface area improves the utilization of the material and the availability of active sites. Here, we report a novel synthetic strategy to prepare an unprecedented type of 2D mesoporous metallic iridium (Ir) nanosheet. Mesoporous Ir nanosheets can be synthesized with close-packed assemblies of diblock copolymer (poly-(ethylene oxide)-b-polystyrene, PEO-b-PS) micelles aligned in the 2D plane of the nanosheets. This novel synthetic route opens a new dimension of control in the synthesis of 2D metals, enabling new kinds of mesoporous architectures with abundant catalytically active sites. Because of their unique structural features, the mesoporous metallic Ir nanosheets exhibit a high electrocatalytic activity toward the oxygen evolution reaction (OER) in acidic solution as compared to commercially available catalysts.

    DOI: 10.1021/jacs.8b05206

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  254. Graphene-Wrapped Nanoporous Nickel-Cobalt Oxide Flakes for Electrochemical Supercapacitors

    Alowasheeir Azhar, Mohamed B. Zakaria, Jianjian Lin, Toyohiro Chikyow, Darren J. Martin, Yousef Gamaan Alghamdi, Abdulmohsen Ali Alshehri, Yoshio Bando, Md Shahriar A. Hossain, Kevin C.W. Wu, Nanjundan Ashok Kumar, Yusuke Yamauchi

    ChemistrySelect   3 巻 ( 29 ) 頁: 8505 - 8510   2018年8月

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    掲載種別:研究論文(学術雑誌)  

    A novel approach for hybridizing nanoporous NiCo oxide flakes with graphene sheets is reported. Positively charged cyano-bridged CoNi coordination polymer flakes (CoNi-CP) are mixed with graphene (G) suspension with negatively charged surface. Due to effective electrostatic interaction, both the materials are hybridized to form CoNi-CP/G composite. The as-prepared CoNi-CP/G composite is thermally treated in air, to remove the organic components without affecting the integrity of the parent G sheets. Through the thermal treatment, the CoNi-CP flakes wrapped into G sheets are converted to NiCo oxide, resulting in a new composite consisting of NiCo oxide flakes and G sheets. The NiCo-oxide/G composite shows the high specific capacitance (∼ 199 F g-1) at 5 mV/s, and features the good capacitance retention of ∼68% at 100 mV(∼ 135 F g−1).

    DOI: 10.1002/slct.201801174

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  255. Synthesis of Hollow Co–Fe Prussian Blue Analogue Cubes by using Silica Spheres as a Sacrificial Template

    Alowasheeir Azhar, Mohamed B. Zakaria, El Zeiny M. Ebeid, Toyohiro Chikyow, Yoshio Bando, Abdulmohsen Ali Alshehri, Yousef Gamaan Alghamdi, Ze Xing Cai, Nanjundan Ashok Kumar, Jianjian Lin, Hansu Kim, Yusuke Yamauchi

    ChemistryOpen   7 巻 ( 8 ) 頁: 599 - 603   2018年8月

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    掲載種別:研究論文(学術雑誌)  

    Herein, we report a novel method for the formation of hollow Prussian blue analogue (CoFe–PBA) nanocubes, using spherical silica particles as sacrificial templates. In the first step, silica cores are coated by a CoFe–PBA shell and then removed by etching with hydrofluoric acid (HF). The cubic shape of CoFe–PBA is well-retained even after the removal of the silica cores, resulting in the formation of hollow CoFe–PBA cubes. The specific capacity of the hollow CoFe–PBA nanocubes electrodes is about two times higher than that of solid CoFe–PBA nanocubes as storage materials for sodium ions. Such an improvement in the electrochemical properties can be attributed to their hollow internal nanostructure. The hollow architecture can offer a larger interfacial area between the electrolyte and the electrode, leading to an improvement in the electrochemical activity. This strategy can be applied to develop PBAs with hollow interiors for a wide range of applications.

    DOI: 10.1002/open.201800120

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  256. Assembly of Hollow Carbon Nanospheres on Graphene Nanosheets and Creation of Iron–Nitrogen-Doped Porous Carbon for Oxygen Reduction 査読有り

    Haibo Tan, Jing Tang, Joel Henzie, Yunqi Li, Xingtao Xu, Tao Chen, Zhongli Wang, Jiayu Wang, Yusuke Ide, Yoshio Bando, Yusuke Yamauchi

    ACS Nano   12 巻 ( 6 ) 頁: 5674 - 5683   2018年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society ({ACS})  

    DOI: 10.1021/acsnano.8b01502

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  257. Elaborately assembled core-shell structured metal sulfides as a bifunctional catalyst for highly efficient electrochemical overall water splitting

    Yanna Guo, Jing Tang, Zhongli Wang, Yong-Mook Kang, Yoshio Bando, Yusuke Yamauchi

    Nano Energy   47 巻   頁: 494 - 502   2018年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier Ltd  

    Low efficiency, short lifetimes, and limited kinds of catalysts are still three fundamental shortcomings that have plagued electrochemical water splitting. Herein, we rationally synthesized a cost-effective Co3S4@MoS2 hetero-structured catalyst that has proven to be a highly active and stable bifunctional catalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in an alkaline environment. The heterostructure was obtained via a first hydrothermal approach to obtain hollow Co3S4 nanoboxes based on the ionic exchange reaction between Fe(CN)6 3− of Co-Fe Prussian blue analogue (PBA) and S2− at 120 °C, and the subsequent in situ growth of MoS2 nanosheets on the surface of Co3S4 nanoboxes at an elevated temperature of 200 °C. The synergistic effects between the active and stable HER catalyst of MoS2 and the efficient OER catalyst of Co3S4, as well as the morphological superiority of hollow and core-shell structures, endow Co3S4@MoS2 with remarkable electrocatalytic performance and robust durability toward overall water splitting. As a result, the designed non-noble electrocatalyst of Co3S4@MoS2 exhibits a low overpotential of 280 mV for OER and 136 mV for HER at a current density of 10 mA cm−2 in an alkaline solution. Meanwhile, a low cell voltage of 1.58 V is achieved by using the heterostructure as both anode and cathode catalysts. This work paves the way to the design and construction of other prominent electrocatalysts for overall water splitting.

    DOI: 10.1016/j.nanoen.2018.03.012

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  258. Chemical Synthesis of Multilayered Nanostructured Perovskite Thin Films with Dielectric Features for Electric Capacitors

    Mohamed Barakat Zakaria, Takahiro Nagata, Asahiko Matsuda, Yudai Yasuhara, Atsushi Ogura, Md Shahriar A. Hossain, Motasim Billah, Yusuke Yamauchi, Toyohiro Chikyow

    ACS Applied Nano Materials   1 巻 ( 2 ) 頁: 915 - 921   2018年2月

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    掲載種別:研究論文(学術雑誌)  

    We report a simple sol-gel method for the preparation of multilayered hybrid thin films composed of nanostructured SrTiO3 (STO) and BaTiO3 (BTO) layers. A nanoporous thin film of STO is prepared by the spin-coating method on Si/SiO2/Ti/Pt substrate. When the BTO is processed, the BTO is crystallized between STO crystal pores. A significant strain field is induced on the interface between the STO and BTO surfaces. The concave shape of the nanopores could enable the realization of a highly strained interfacial heterostructure composed of STO/BTO. Compared to nanostructured STO, BTO, and bilayer STO/BTO films, multilayered STO/BTO films show the highest dielectric constant and a high Curie temperature (Tc) at around 280 °C, which is suitable for electric capacitor applications.

    DOI: 10.1021/acsanm.7b00310

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  259. Mesoporous Bimetallic RhCu Alloy Nanospheres Using a Sophisticated Soft-Templating Strategy 査読有り

    Bo Jiang, Kenya Kani, Muhammad Iqbal, Hideki Abe, Tatsuo Kimura, Md. Shahriar A. Hossain, Oruganti Anjaneyulu, Joel Henzie, Yusuke Yamauchi

    Chemistry of Materials   30 巻 ( 2 ) 頁: 428 - 435   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society  

    Mesoporous metals are useful for heterogeneous catalysis because their ultrapermeable architecture promotes mass transport to abundant active sites. Our group recently developed a method to manipulate the interior space of nanocrystals by synthesizing mesoporous Rh nanospheres that serve as high performance catalysts for methanol oxidation and nitric oxide (NO) remediation (Jiang, B.
    et al. Nat. Commun. 2017, 8, 15581). Here, we extend this concept and propose a sophisticated soft-templating strategy to synthesize three-dimensional mesoporous bimetallic RhCu nanospheres. The nanospheres are alloys of Rh and Cu, and their compositions can be continuously tuned by varying the amount of metal precursors. The mesoporous RhCu nanospheres were examined for catalytic remediation of NO and show good catalytic performance considering the reduced economic cost of the alloyed material. This method offers a general approach for the precise design of high surface area Rh-based metal catalysts.

    DOI: 10.1021/acs.chemmater.7b04307

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  260. Preparation of ultraviolet curing type silicone rubbers containing mesoporous silica fillers 査読有り

    Abdullah, N., Hossain, Md.S.A., Fatehmulla, A., Farooq, W.A., Islam, Md.T., Miyamoto, N., B, o, Y., Kamachi, Y., Malgras, V., Yamauchi, Y., Suzuki, N.

    Journal of Nanoscience and Nanotechnology   18 巻 ( 1 )   2018年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1166/jnn.2018.14553

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  261. Localization of platinum nanoparticles on inner walls of mesoporous hollow carbon spheres for improvement of electrochemical stability

    Huayu Qian, Jing Tang, Md. Shahriar A. Hossain, Yoshio Bando, Xin Wang, Yusuke Yamauchi

    Nanoscale   9 巻 ( 42 ) 頁: 16264 - 16272   2017年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    Mesoporous hollow carbon spheres with Pt nanoparticles (NPs) loaded on their inner walls (Pt@HC-meso) have been designed and prepared through a dual-templating method. The core-shell structured Pt/SiO2@micelle-polydopamine (PDA) precursor is obtained by first depositing Pt NPs on silica spheres and then coating them with the carbon precursor of PDA and diblock copolymer micelles as soft templates. The subsequent carbonization and KOH etching convert the micelle-PDA shells into mesoporous carbon and remove the silica cores, respectively. Thus, the Pt NPs are subjected to calcination and left on the inner walls. The fabricated Pt@HC-meso achieved high electrocatalytic performance and outstanding stability in catalyzing methanol oxidation. We infer that the mesoporous carbon shells not only provide accessible diffusion pathways for the reactants, but also protect the inner Pt NPs from collision with Pt NPs in other hollow carbon spheres. Each hollow carbon sphere with Pt NPs inside can be regarded as an independent nanoreactor. Moreover, observations of the morphology have proved that the calcined Pt NPs avoid a second aggregation during the electrocatalytic process and maintain long-term stability.

    DOI: 10.1039/c7nr07267h

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  262. Assembly of hollow mesoporous nanoarchitectures composed of ultrafine Mo2C nanoparticles on N-doped carbon nanosheets for efficient electrocatalytic reduction of oxygen 査読有り

    Yanna Guo, Jing Tang, Joel Henzie, Bo Jiang, Huayu Qian, Zhongli Wang, Haibo Tan, Yoshio Bando, Yusuke Yamauchi

    MATERIALS HORIZONS   4 巻 ( 6 ) 頁: 1171 - 1177   2017年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

    A simple method is developed to assemble Mo2C nanocrystals on the surfaces of hollow, highly conductive mesoporous nanoparticles. Diblock copolymer (PS-b-PEO) micelles are used as templates to assist in the fast complexation of molybdate (MoO42-) and poly-dopamine (PDA) precursors to make hollow precursor MoO42-/PDA/PS-b-PEO particles. Then these particles are carbonized to generate mesoporous N-doped carbon nanosheets riddled with ultrafine molybdenum carbide (Mo2C) nanoparticles (MMo2C/NCS). An N-doped carbon matrix serves as an electron conductor and helps to prevent the aggregation of the Mo2C nanoparticles. The Mo2C nanoparticles in turn enhance the catalytic performance for the oxygen reduction reaction (ORR). The unique mesoporous 2D nanosheet and its derived 3D hollow structure expose numerous active catalytic sites while enabling free diffusion of the electrolyte and mass transfer. Based on these properties, MMo2C/NCS show enhanced catalytic activity for the ORR.

    DOI: 10.1039/c7mh00586e

    Web of Science

  263. One-Pot Synthesis of Zeolitic Imidazolate Framework 67-Derived Hollow Co3S4@MoS2 Heterostructures as Efficient Bifunctional Catalysts

    Yanna Guo, Jing Tang, Huayu Qian, Zhongli Wang, Yusuke Yamauchi

    Chemistry of Materials   29 巻 ( 13 ) 頁: 5566 - 5573   2017年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:American Chemical Society  

    Herein, we present a facile metal-organic framework-engaged strategy to synthesize hollow Co3S4@MoS2 heterostructures as efficient bifunctional catalysts for both H2 and O2 generation. The well-known cobalt-based metal-organic zeolitic imidazolate frameworks (ZIF-67) are used not only as the morphological template but also as the cobalt precursor. During the two-step temperature-raising hydrothermal process, ZIF-67 polyhedrons are first transformed to hollow cobalt sulfide polyhedrons by sulfidation, and then molybdenum disulfide nanosheets further grow and deposit on the surface of hollow cobalt sulfide polyhedrons at the increased temperature. The crystalline hollow Co3S4@MoS2 heterostructures are finally obtained after subsequent thermal annealing under a N2 atmosphere. Due to the synergistic effects between the hydrogen evolution reaction active catalyst of MoS2 and the oxygen evolution reaction active catalyst of Co3S4, the obtained hollow Co3S4@MoS2 heterostructures exhibit outstanding bifunctional catalytic performances toward both hydrogen and oxygen evolution reactions in acidic and alkaline media.

    DOI: 10.1021/acs.chemmater.7b00867

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  264. Simple Fabrication of Titanium Dioxide/N-Doped Carbon Hybrid Material as Non-Precious Metal Electrocatalyst for the Oxygen Reduction Reaction 査読有り

    Shangbin Jin, Cuiling Li, Lok Kumar Shrestha, Yusuke Yamauchi, Katsuhiko Ariga, Jonathan P. Hill

    ACS APPLIED MATERIALS & INTERFACES   9 巻 ( 22 ) 頁: 18782 - 18789   2017年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:AMER CHEMICAL SOC  

    We report a new approach for the fabrication of hybrid titanium dioxide/carbon materials derived from a porous titanium coordination polymer composed of a catechol-substituted porphyrin And Ti4+. Titanium dioxide nanocrystals were formed distributed in a nitrogen-doped carboniferous matrix after the thermolysis of the coordination polymer. The identity of the titanium dioxide phase, i.e., anatase or rutile, could be controlled by varying the thermolysis temperature. Electrochemical performances of the composites were explored with results demonstrating that the hybrid materials ate promising cathodic materials for the oxygen reduction reaction.

    DOI: 10.1021/acsami.7b03305

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  265. Lignocellulosic biomass-derived, graphene sheet-like porous activated carbon for electrochemical supercapacitor and catechin sensing 査読有り

    Veeramani, V., Sivakumar, M., Chen, S.-M., Madhu, R., Alamri, H.R., Alothman, Z.A., Hossain, M.S.A., Chen, C.-K., Yamauchi, Y., Miyamoto, N., Wu, K.C.-W.

    RSC Advances   7 巻 ( 72 )   2017年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c7ra07810b

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  266. High performance capacitive deionization electrodes based on ultrathin nitrogen-doped carbon/graphene nano-sandwiches

    Miao Wang, Xingtao Xu, Jing Tang, Shujin Hou, Md. Shahriar A. Hossain, Likun Pan, Yusuke Yamauchi

    Chemical Communications   53 巻 ( 78 ) 頁: 10784 - 10787   2017年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    Here, ultrathin nitrogen-doped carbon/graphene nano-sandwiches were synthesized by carbonization of graphene oxide-based nanosheets, which were fully covered with ultrasmall ZIF-8 nanocrystals. The novel sandwich structure possesses large accessible surface area, excellent electrical conductivity, and high nitrogen content, thus showing superior desalination performance.

    DOI: 10.1039/c7cc05673g

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  267. A mesoporous tin phosphate-graphene oxide hybrid toward the oxygen reduction reaction

    Malay Pramanik, Cuiling Li, Yusuf Valentino Kaneti, Yusuke Yamauchi

    Chemical Communications   53 巻 ( 42 ) 頁: 5721 - 5724   2017年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    We report a one-pot synthetic strategy for the production of an efficient oxygen reduction reaction (ORR) electrocatalyst by the hybridization of hexagonally ordered mesoporous/crystalline tin phosphate (mesoSnPi) nanoflakes with thin layers of graphene oxide (GO). In the electrocatalytic measurements, the obtained nanocomposite (SnPi@GO) exhibited a superior electrocatalytic performance for ORR over mesoporous tin phosphate (mesoSnPi), bulk tin phosphate (bulkSnPi), bulk tin oxide (bulkSnO), various transition metal phosphate nanomaterials and most state-of-the-art manganese oxides.

    DOI: 10.1039/c7cc01311f

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  268. Synthesis of Cobalt Sulfide/Sulfur Doped Carbon Nanocomposites with Efficient Catalytic Activity in the Oxygen Evolution Reaction

    Huayu Qian, Jing Tang, Zhongli Wang, Jeonghun Kim, Jung Ho Kim, Saad M. Alshehri, Ekrem Yanmaz, Xin Wang, Yusuke Yamauchi

    Chemistry - A European Journal   22 巻 ( 50 ) 頁: 18259 - 18264   2016年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley-VCH Verlag  

    Cobalt sulfide/sulfur doped carbon composites (Co9S8/S-C) were synthesized by calcining a rationally designed sulfur-containing cobalt coordination complex in an inert atmosphere. From the detailed transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) analyses, the electrocatalytically active Co9S8 nanoparticles were clearly obtained and combined with the thin sulfur doped carbon layers. Electrochemical data showed that Co9S8/S-C had a good activity and long-term stability in catalyzing oxygen evolution reaction in alkaline electrolyte, even better than the traditional RuO2 electrocatalyst. The excellent electrocatalytic activity of Co9S8/S-C was mainly attributed to the synergistic effect between the Co9S8 catalyst which contributed to the oxygen evolution reaction and the sulfur doped carbon layer which facilitated the adsorption of reactants, prevented the Co9S8 particles from aggregating and served as the electrically conductive binder between each component.

    DOI: 10.1002/chem.201604162

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  269. Mesoporous Trimetallic PtPdRu Spheres as Superior Electrocatalysts 査読有り

    Bo Jiang, Hamed Ataee-Esfahani, Cuiling Li, Saad M. Alshehri, Tansir Ahamad, Joel Henzie, Yusuke Yamauchi

    CHEMISTRY-A EUROPEAN JOURNAL   22 巻 ( 21 ) 頁: 7174 - 7178   2016年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:WILEY-V C H VERLAG GMBH  

    Mesoporous Trimetallic PtPdRu Spheres with well-defined spherical morphology and uniformly sized pores were synthesized in an aqueous solution using ascorbic acid as the reducing agent and triblock copolymer F127 as the pore directing agent. These mesoporous PtPdRu spheres exhibited enhanced electrocatalytic activity compared to commercial Pt black, resulting in a similar to 4.9 times improvement in mass activity for the methanol oxidation reaction. The excellent electrocatalytic activity and stability are due to the unique mesoporous architecture and electronic landscape between different elements.

    DOI: 10.1002/chem.201600774

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  270. Thermo-responsive hydrogels containing mesoporous silica toward controlled and sustainable releases 査読有り

    Yuichiro Kamachi, Bishnu Prasad Bastakoti, Saad M. Alshehri, Nobuyoshi Miyamoto, Teruyuki Nakato, Yusuke Yamauchi

    MATERIALS LETTERS   168 巻   頁: 176 - 179   2016年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ELSEVIER SCIENCE BV  

    Here we prepare thermo-responsive hydrogel containing mesoporous silica (KIT -6) with high surface area. Our hybrid hydrogel is prepared by gelation of NIPAM monomer with mesoporous silica particles in presence of cross linker. Owing to the doped mesoporous silica, a large amount of guest molecules are adsorbed easily. With increase of temperature, the hybrid hydrogel shrinks to retard the release of guest molecules. (C) 2015 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.matlet.2015.12.132

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  271. Perspective: Recent developments in hybrid hydrogels containing inorganic nanomaterials 査読有り

    Malgras, V., Kamachi, Y., Nakato, T., Yamauchi, Y., Miyamoto, N.

    Nanoscience and Nanotechnology Letters   8 巻 ( 4 )   2016年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1166/nnl.2016.2140

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  272. Morphosynthesis of nanoporous pseudo Pd@Pt bimetallic particles with controlled electrocatalytic activity 査読有り

    Bo Jiang, Cuiling Li, Joel Henzie, Toshiaki Takei, Yoshio Bando, Yusuke Yamauchi

    JOURNAL OF MATERIALS CHEMISTRY A   4 巻 ( 17 ) 頁: 6465 - 6471   2016年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

    Nanoporous pseudo Pd@Pt bimetallic particles were prepared using a facile one-step synthetic approach. The morphologies of the resultant particles are changed from spheres to cubes by increasing the molar ratio of the Pd/Pt precursor solution. Compared to commercially available Pt black and Pt/C-20%, the nanoporous pseudo Pd@Pt bimetallic particles were up to 7 times and 2.1 times more active for the methanol oxidation reaction on the basis of equivalent Pt, respectively. This excellent electrocatalytic activity is caused by a combination of the high surface area of the nanoporous architecture in addition to the bimetallic synergetic effect. Through this work, we demonstrate a general approach for the creation of nanoporous bimetallic Pt-based particles with controlled shape, composition and size for enhanced catalytic activity.

    DOI: 10.1039/c6ta00037a

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  273. Strategic synthesis of mesoporous Pt-on-Pd bimetallic spheres templated from a polymeric micelle assembly

    Yunqi Li, Cuiling Li, Bishnu Prasad Bastakoti, Jing Tang, Bo Jiang, Jeonghun Kim, Mohammed Shahabuddin, Yoshio Bando, Jung Ho Kim, Yusuke Yamauchi

    Journal of Materials Chemistry A   4 巻 ( 23 ) 頁: 9169 - 9176   2016年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    Core-shell-corona type triblock copolymer poly(styrene-b-2-vinylpyridine-b-ethylene oxide) (PS-b-P2VP-b-PEO) micelles have been selected here to direct the synthesis of mesoporous Pt-on-Pd spheres, consisting of a Pd concentrated core and a Pt shell, as established by elemental mapping. It is important to note that the size of the PS core determines the resultant size of the mesopores. A self-evaporation method has been developed to prepare swollen micelles, so as to further enlarge the pore size (∼40 nm). Compared with commercially available catalysts (e.g., Pt black or Pt, 20 wt% on carbon black), good oxygen reduction reaction performance on the mesoporous Pt-on-Pd spheres is observed, due to the exposure of the most active Pt (111) planes and the synergistic effects from Pt and Pd in the pseudo core-shell structure.

    DOI: 10.1039/c6ta02526a

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  274. Three-dimensional hyperbranched PdCu nanostructures with high electrocatalytic activity

    Bo Jiang, Cuiling Li, Victor Malgras, Yoshio Bando, Yusuke Yamauchi

    Chemical Communications   52 巻 ( 6 ) 頁: 1186 - 1189   2016年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    In this study, three-dimensional (3D) PdCu alloyed nanostructures, consisting of one-dimensional (1D) branches, were successfully synthesized through a facile wet-chemical method without using any seeds or organic solvent. The success of this approach relies on the use of hydrochloric acid (HCl) to control the reduction rate, and on the presence of bromide ions (Br-) to selectively adsorb on certain facets of the PdCu nucleus. The as-prepared 3D PdCu nanostructures exhibit a greatly enhanced catalytic activity toward formic acid oxidation, owing to a suitable electronic landscape resulting from the alloy structure and the unique morphology.

    DOI: 10.1039/c5cc08581k

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  275. A Facile Preparation of Mesoporous Carbon Composites with Well-Dispersed Pd Nanoparticles and Their Utilization as Supports for Pt Catalysts

    Jing Tang, Tao Wang, Victor Malgras, Jung Ho Kim, Yusuke Yamauchi, Jianping He

    Electrochimica Acta   183 巻   頁: 112 - 118   2015年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier Ltd  

    Palladium-introduced ordered mesoporous carbon (Pd-C) composite materials were prepared through a facile co-assembly process by employing nonionic block copolymers (Pluronic F127) as a structure-directing agent, low-molecular weight phenolic resin (resol) as a carbon precursor and tetraethyl orthosilicate and palladium chloride as additives. The addition of Pd nanoparticles (less than 9 wt.%) were well-dispersed throughout the Pd-C frameworks without destroying the ordered tubular mesochannels. Layered graphitic sheets were readily formed due to the catalytic graphitization of amorphous carbon by Pd nanoparticles, leading to an increased crystallinity and electronic conductivity of carbon support (Pd-C). The Pt/Pd-C catalysts were prepared by loading Pt nanoparticles onto the Pd-C supports. Abundant Pt nanoparticles with an average size of 3 nm were well-deposited onto the Pd-C framework by the means of the distributed anchor sites of Pd nanoparticles, finally increasing the utilization of Pt catalyst. Herein, the Pt catalyst supported on Pd-C composite materials exhibited much higher electrochemical active surface areas compared to Pt catalysts supported on pure ordered mesoporous carbon because of its increased electronic conductivity, active anchor sites and electrocatalytic active Pd nanoparticles.

    DOI: 10.1016/j.electacta.2015.04.154

    Scopus

  276. Synthesis of ternary PtPdCu spheres with three-dimensional nanoporous architectures toward superior electrocatalysts

    Bo Jiang, Cuiling Li, Victor Malgras, Yusuke Yamauchi

    Journal of Materials Chemistry A   3 巻 ( 35 ) 頁: 18053 - 18058   2015年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry  

    We report a simple method for the preparation of ternary PtPdCu spheres with a three-dimensional (3D) nanoporous structure in a solution phase. The structure, composition, and electronic states of the obtained material are characterized and studied by various physical techniques. By varying the amount of Cu precursor involved in the reaction, the composition of the spheres can be adjusted without affecting the morphology. Due to the nanoporous structure and the multimetallic synergetic effect, our ternary nanoporous PtPdCu spheres exhibited 1.7, 2.8, and 4.9 times higher activity than that of binary nanoporous PtPd spheres, dendritic Pt, and commercial Pt black catalysts, respectively.

    DOI: 10.1039/c5ta02951a

    Scopus

  277. Polymeric Micelle Assembly with Inorganic Nanosheets for Construction of Mesoporous Architectures with Crystallized Walls 査読有り

    Bishnu Prasad Bastakoti, Yunqi Li, Masataka Imura, Nobuyoshi Miyamoto, Teruyuki Nakato, Takayoshi Sasaki, Yusuke Yamauchi

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   54 巻 ( 14 ) 頁: 4222 - 4225   2015年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:WILEY-V C H VERLAG GMBH  

    Here we propose a novel way to construct mesoporous architectures through evaporation-induced assembly of polymeric micelles with crystalline nanosheets. As a model study, we used niobate nanosheets exfoliated by the direct reaction of K4Nb6O17 center dot 3H(2)O crystals with an aqueous solution of propylamine. The electrostatic interaction between negatively charged nanosheets and positively charged polymeric micelles enable us to form composite micelles with the nanosheets. Removal of the micelles by calcination results in robust mesoporous oxides with the original crystalline structure.

    DOI: 10.1002/anie.201410942

    Web of Science

    Scopus

  278. Surfactant-Directed Synthesis of Mesoporous Pd Films with Perpendicular Mesochannels as Efficient Electrocatalysts 査読有り

    Li, C., Jiang, B., Miyamoto, N., Kim, J.H., Malgras, V., Yamauchi, Y.

    Journal of the American Chemical Society   137 巻 ( 36 )   2015年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/jacs.5b06278

    Scopus

  279. Polymeric micelle assembly for the direct synthesis of functionalized mesoporous silica with fully accessible Pt nanoparticles toward an improved CO oxidation reaction 査読有り

    Bishnu Prasad Bastakoti, Yunqi Li, Nobuyoshi Miyamoto, Noelia M. Sanchez-Ballester, Hideki Abe, Jinhua Ye, Pavulun Srinivasu, Yusuke Yamauchi

    CHEMICAL COMMUNICATIONS   50 巻 ( 65 ) 頁: 9101 - 9104   2014年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

    Pt-decorated mesoporous silica is directly prepared using a polymeric micelles assembly approach using an asymmetric triblock copolymer, poly(styrene-b-2-vinylpyridine-b-ethylene oxide) as the structure directing agent. Strongly immobilized, fully accessible, and uniformly dispersed Pt nanoparticles on mesoporous silica wall exhibit superior catalytic activity toward CO oxidation.

    DOI: 10.1039/c4cc02556c

    Web of Science

  280. Gigantic Swelling of Inorganic Layered Materials: A Bridge to Molecularly Thin Two-Dimensional Nanosheets 査読有り

    Fengxia Geng, Renzhi Ma, Yasuo Ebina, Yusuke Yamauchi, Nobuyoshi Miyamoto, Takayoshi Sasaki

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   136 巻 ( 14 ) 頁: 5491 - 5500   2014年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:AMER CHEMICAL SOC  

    Platy microcrystals of a typical layered material, protonated titanate, have been shown to undergo an enormous degree of swelling in aqueous solutions of various amines, including tertiary amines, quaternary ammonium hydroxides, and primary amines. Introducing these solutions expanded the crystal gallery height by up to similar to 100-fold. Through systematic analysis, we determined that ammonium ion intercalation is predominantly affected by the acid base equilibrium and that the degree of swelling or inflow of H2O is controlled by the osmotic pressure balance between the gallery and the solution environment, both of which are relatively independent of electrolyte identity but substantially dependent on molarity. In solutions of tertiary amines and quaternary ammonium hydroxides, the uptake of ammonium ions increases nearly linearly with increasing external concentration before reaching a saturation plateau, i.e., similar to 40% relative to the cation-exchange capacity of the crystals used. The only exception is tetrabutylammonium ions, which yield a lower saturation value, similar to 30%, owing to steric effects. The swelling behaviors in some primary amine solutions differ as a result of the effect of attractive forces between amine solute molecules on the solution osmotic pressure. Although the swelling is essentially colligative in nature, the stability of the resultant swollen structure is heavily dependent on the chemical nature of the guest ions. Intercalated ions of higher polarity and smaller size help stabilize the swollen structure, whereas ions of lower polarity and larger size lead readily to exfoliation. The insight gained from this study sheds new light on both the incorporation of guest molecules into a gallery of layered structures in general and the exfoliation of materials into elementary single-layer nanosheets.

    DOI: 10.1021/ja501587y

    Web of Science

  281. Synthesis of mesoporous platinum-copper films by electrochemical micelle assembly and their electrochemical applications

    Cuiling Li, Yusuke Yamauchi

    Chemistry - A European Journal   20 巻 ( 3 ) 頁: 729 - 733   2014年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    We have electrochemically synthesized mesoporous platinum-copper films with various compositions in an aqueous surfactant solution. By tuning the composition ratios of the platinum and copper sources in the precursor solutions, mesoporous bimetallic films with copper contents that dramatically change from 0 to 70 mol % can be successfully prepared. The obtained bimetallic films possess uniformly sized mesopores over the entire area. These mesoporous platinum-copper films are electrochemically active and show composition- dependent catalytic activity and stability for the methanol oxidation reaction. The bimetallic mesoporous films are a promising new class of electrocatalyst for the future. Copyright © 2014 WILEY-VCH Verlag GmbH &amp
    Co. KGaA, Weinheim.

    DOI: 10.1002/chem.201302579

    Scopus

  282. Effective use of mesoporous silica filler: Comparative study on thermal stability and transparency of silicone rubbers loaded with various kinds of silica particles 査読有り

    Suzuki, N., Kamachi, Y., Takai, K., Kiba, S., Sakka, Y., Miyamoto, N., Yamauchi, Y.

    European Journal of Inorganic Chemistry   ( 17 )   2014年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/ejic.201301615

    Scopus

  283. Mesoporous silica particles as topologically crosslinking fillers for poly(N-isopropylacrylamide) hydrogels 査読有り

    Miyamoto, N., Shimasaki, K., Yamamoto, K., Shintate, M., Kamachi, Y., Bastakoti, B.P., Suzuki, N., Motokawa, R., Yamauchi, Y.

    Chemistry - A European Journal   20 巻 ( 46 )   2014年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/chem.201403762

    Scopus

  284. Facile solution synthesis of Ag@Pt core-shell nanoparticles with dendritic Pt shells

    Cuiling Li, Yusuke Yamauchi

    Physical Chemistry Chemical Physics   15 巻 ( 10 ) 頁: 3490 - 3496   2013年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Ag@Pt nanoparticles with various dendritic Pt shells were successfully synthesized by using nonionic surfactants at room temperature. Our recent study demonstrated that the addition of nonionic surfactant plays an important key role in the synthesis of dendritic Pt nanostructures (J. Am. Chem. Soc., 2010, 132, 13636). Here we extend this synthetic concept to prepare various Ag@Pt nanoarchitectures. The different nanostructured Pt shells on the Ag core were confirmed by ultraviolet-visible absorption spectroscopy and transmission electron microscopy. As a preliminary electrochemical application, the obtained Ag@Pt nanostructures were applied in the methanol oxidation reaction (MOR) in 0.5 M H2SO4 solution containing 0.5 M methanol. The Ag@Pt nanoparticles with thin dendritic Pt shells show superior CO-tolerance performance with a If/Ib value reaching 3.71. Our Ag@Pt nanostructures with good CO tolerant activity will be prominent catalysts for MOR. © 2013 the Owner Societies.

    DOI: 10.1039/c3cp44313b

    Scopus

  285. Unusually stable similar to 100-fold reversible and instantaneous swelling of inorganic layered materials 査読有り

    Fengxia Geng, Renzhi Ma, Akira Nakamura, Kosho Akatsuka, Yasuo Ebina, Yusuke Yamauchi, Nobuyoshi Miyamoto, Yoshitaka Tateyama, Takayoshi Sasaki

    NATURE COMMUNICATIONS   4 巻   頁: 1632-1 - 1632-7   2013年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:NATURE PUBLISHING GROUP  

    Cells can swell or shrink in certain solutions; however, no equivalent activity has been observed in inorganic materials. Although lamellar materials exhibit increased volume with increase in the lamellar period, the interlamellar expansion is usually limited to a few nanometres, with a simultaneous partial or complete exfoliation into individual atomic layers. Here we demonstrate a large monolithic crystalline swelling of layered materials. The gallery spacing can be instantly increased similar to 100-fold in one direction to similar to 90 nm, with the neighbouring layers separated primarily by H2O. The layers remain strongly held without peeling or translational shifts, maintaining a nearly perfect three-dimensional lattice structure of &gt;3,000 layers. First-principle calculations yield a long-range directional structuring of the H2O molecules that may help to stabilize the highly swollen structure. The crystals can also instantaneously shrink back to their original sizes. These findings provide a benchmark for understanding the exfoliating layered materials.

    DOI: 10.1038/ncomms2641

    Web of Science

  286. Liquid crystalline inorganic nanosheets for facile synthesis of polymer hydrogels with anisotropies in structure, optical property, swelling/deswelling, and ion transport/fixation 査読有り

    Nobuyoshi Miyamoto, Morio Shintate, Shogo Ikeda, Yasutomo Hoshida, Yusuke Yamauchi, Ryuhei Motokawa, Masahiko Annaka

    CHEMICAL COMMUNICATIONS   49 巻 ( 11 ) 頁: 1082 - 1084   2013年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

    Macroscopically anisotropic hydrogels were synthesized by hybridization of poly(N-isopropylacrylamide) with liquid crystalline inorganic nanosheets; their anisotropies in the structure and properties are demonstrated.

    DOI: 10.1039/c2cc36654a

    Web of Science

    Scopus

    その他リンク: http://orcid.org/0000-0001-5010-0112

  287. Mesoporous metallic cells: Design of uniformly sized hollow mesoporous Pt-Ru particles with tunable shell thicknesses 査読有り

    Ataee-Esfahani, H., Liu, J., Hu, M., Miyamoto, N., Tominaka, S., Wu, K.C.W., Yamauchi, Y.

    Small   9 巻 ( 7 )   2013年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/smll.201202539

    Scopus

  288. A new family of carbon materials: synthesis of MOF-derived nanoporous carbons and their promising applications 査読有り

    Watcharop Chaikittisilp, Katsuhiko Ariga, Yusuke Yamauchi

    JOURNAL OF MATERIALS CHEMISTRY A   1 巻 ( 1 ) 頁: 14 - 19   2013年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

    Nanoporous carbons possessing high surface area and narrow pore size distribution are among the most important classes of porous materials that are practically utilized in industries. Recently, several metal-organic frameworks (MOFs) or porous coordination polymers (PCPs) have been demonstrated as promising precursors to create functional nanoporous carbons. In this highlight article, we briefly review the recent progress in preparation of these novel MOF-derived nanoporous carbons. Some promising applications in energy and environment-related areas and future outlook are also discussed.

    DOI: 10.1039/c2ta00278g

    Web of Science

  289. Synthesis of Mesoporous Pt Films with Tunable Pore Sizes from Aqueous Surfactant Solutions 査読有り

    Hongjing Wang, Liang Wang, Takaaki Sato, Yasuhiro Sakamoto, Satoshi Tominaka, Keiichi Miyasaka, Nobuyoshi Miyamoto, Yoshihiro Nemoto, Osamu Terasaki, Yusuke Yamauchi

    CHEMISTRY OF MATERIALS   24 巻 ( 9 ) 頁: 1591 - 1598   2012年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:AMER CHEMICAL SOC  

    Platinum (Pt) is widely used as battery electrodes, catalysts for chemicals, and catalysts for exhaust gas decomposition in industries. Increasing need and very limited supply of rare Pt is a serious problem in the world. Here, we propose new synthetic way for reducing the use of Pt in a catalytic system by increasing the surface area and modifying the Pt surface structure. Several types of mesoporous Pt films with different pore sizes ranging from 5 to 30 nm are prepared by electrochemical plating in aqueous surfactant solutions. The mesopore walls are composed of connected Pt nanoparticles with around 3 nm in diameter. The Pt atomic crystallinity is coherently extending across over several Pt nanoparticles, showing a large number of atomic steps, which can accelerate methanol oxidation reaction. As a result of a high surface area and unique Pt surface, our mesoporous Pt film exhibits high potentiality as a superior electrocatalyst.

    DOI: 10.1021/cm300054b

    Web of Science

    Scopus

  290. Synthesis of mesoporous titania nanoparticles with anatase frameworks and investigation of their photocatalytic performance 査読有り

    Zakaria, M.B., Suzuki, N., Shimasaki, K., Miyamoto, N., Huang, Y.-T., Yamauchi, Y.

    Journal of Nanoscience and Nanotechnology   12 巻 ( 6 )   2012年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1166/jnn.2012.6205

    Scopus

  291. Unusual reinforcement of silicone rubber compounds containing mesoporous silica particles as inorganic fillers 査読有り

    Norihiro Suzuki, Shosuke Kiba, Yuichiro Kamachi, Nobuyoshi Miyamoto, Yusuke Yamauchi

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS   14 巻 ( 10 ) 頁: 3400 - 3407   2012年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

    We fabricate mesoporous silica/silicone composites in a simple way and systematically examine their thermal stability, swelling characteristic, mechanical strength, and transparency. Simple calculations show that more than 90 vol% of mesopores are filled with silicone rubbers. Compared to non-porous silica/silicone composites, mesoporous silica/silicone composites showed a lower coefficient of linear thermal expansion (CTE). In addition, dramatic improvements of the tensile strength and Young's modulus are obtained with mesoporous silica/silicone composites. Furthermore, mesoporous silica/silicone composites show higher transparency than non-porous silica/silicone composites.

    DOI: 10.1039/c2cp23864k

    Web of Science

  292. Hybridization of Photoactive Titania Nanoparticles with Mesoporous Silica Nanoparticles and Investigation of Their Photocatalytic Activity 査読有り

    Norihiro Suzuki, Xiangfen Jiang, Logudurai Radhakrishnan, Kimiko Takai, Kotaro Shimasaki, Yu-Tzu Huang, Nobuyoshi Miyamoto, Yusuke Yamauchi

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   84 巻 ( 7 ) 頁: 812 - 817   2011年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:CHEMICAL SOC JAPAN  

    Here we demonstrate that photoactive titania (titanium dioxide) nanoparticles are successfully hybridized with an optimized amount of mesoporous silica (silicon dioxide) nanoparticles to realize drastic improvement of photocatalitic activity of the titania nanoparticles. Various types of mesoporous silica/titania composites are prepared by changing the amounts of doped mesoporous silica. Low-angle XRD patterns and N-2 adsorption-desorption isotherms reveal that the original mesostructures and pore sizes of mesoporous silica nanoparticles are well maintained even after hybridization with the titania nanoparticles. From SEM and TEM observation, it is confirmed that both the nanoparticles are homogeneously dispersed in the composite matrix. The obtained mesoporous silica/titania composites show excellent photocatalytic activity in the decomposition of methylene blue (MB), in comparison with titania nanoparticles without mesoporous silica. By hybridization with mesoporous silica, the photogenerated radicals from titania surfaces can efficiently react with many MB molecules captured inside the mesopores.

    DOI: 10.1246/bcsj.20110027

    Web of Science

  293. Synthesis of mesoporous Nb2O5 with crystalline walls and investigation of their photocatalytic activity 査読有り

    Norihiro Suzuki, Taimur Athar, Yu-Tzu Huang, Kotaro Shimasaki, Nobuyoshi Miyamoto, Yusuke Yamauchi

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   119 巻 ( 1390 ) 頁: 405 - 411   2011年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI  

    We synthesize various kinds of mesoporous Nb2O5 samples by changing surfactants (P123 and Brij 56), followed by calcination (from 400 to 500 and 600 degrees C). The effect of these parameters helps to produce a well-defined mesoporous framework with crystallinity. The mesoporous Nb2O5 samples are well characterized by using small-angle X-ray scattering (SAXS) measurements, N-2 adsorption-desorption isotherms, and wide-angle XRD measurements. In a P123 system, the frameworks are well crystallized to the TT-phase (pseudo-hexagonal) by calcination at 500 degrees C with retention of the mesoporous structures. In the Brij 56 system, after calcination at 500 degrees C, the framework is well retained in an amorphous state. It is proved that the thick walls prepared with P123 are easily crystallized in comparison to thin walls prepared with Brij 56. Furthermore, we investigate the photocatalytic activity by using several types of mesoporous Nb2O5 prepared with P123. All these mesoporous Nb2O5 samples show photocatalytic activity with their decomposition reaction of methylene blue (MB) molecules. It is concluded that the reaction rates depend on their crystallinities in the frameworks, surface areas, and average mesopore sizes. (C)2011 The Ceramic Society of Japan. All rights reserved.

    DOI: 10.2109/jcersj2.119.405

    Web of Science

  294. Aerosol-assisted synthesis of nanoporous silica/titania nanoparticles composites and investigation of their photocatalytic properties 査読有り

    Shimasaki, K., Suzuki, N., Miyamoto, N., Yamauchi, Y.

    Journal of Nanoscience and Nanotechnology   11 巻 ( 4 )   2011年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1166/jnn.2011.3722

    Scopus

  295. Exfoliated nanosheets of layered perovskite KCa<inf>2</inf>Nb <inf>3</inf>O<inf>10</inf> as an inorganic liquid crystal 査読有り

    Miyamoto, N., Yamamoto, S., Shimasaki, K., Harada, K., Yamauchi, Y.

    Chemistry - An Asian Journal   6 巻 ( 11 )   2011年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/asia.201100279

    Scopus

  296. Mesoporous silica as smart inorganic filler: preparation of robust silicone rubber with low thermal expansion property 査読有り

    Norihiro Suzuki, Shosuke Kiba, Yuichiro Kamachi, Nobuyoshi Miyamoto, Yusuke Yamauchi

    JOURNAL OF MATERIALS CHEMISTRY   21 巻 ( 14 ) 頁: 5338 - 5344   2011年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

    Here we demonstrate the importance of mesoporous silica as a smart inorganic filler. Silicone rubber with low thermal expansion is realized by doping mesoporous silica particles. For the preparation of mesoporous silica/silicone composites, an unpolymerized silicone component is diluted by a volatile organic solvent and then is penetrated into the mesopores by a capillary force. After penetration, the organic solvent is evaporated completely. Based on theoretical calculations, the estimated degree of mesopore filling is more than 90%. Mesoporous silica/silicone composites show much lower Coefficient of Linear Thermal Expansion (CTE) and higher hardness values than do silicone composites with nonporous silica particles.

    DOI: 10.1039/c0jm03767b

    Web of Science

  297. Highly photoactive porous anatase films obtained by deformation of 3D mesostructures 査読有り

    Kimura, T., Yamauchi, Y., Miyamoto, N.

    Chemistry - A European Journal   17 巻 ( 14 )   2011年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/chem.201002939

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  298. Condensation- and crystallinity-controlled synthesis of titanium oxide films with assessed mesopores 査読有り

    Kimura, T., Yamauchi, Y., Miyamoto, N.

    Chemistry - A European Journal   16 巻 ( 40 )   2010年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/chem.201001251

    Scopus

  299. Liquid crystal phases in the aqueous colloids of size-controlled fluorinated layered clay mineral nanosheets 査読有り

    Nobuyoshi Miyamoto, Hirokazu Iijima, Hirokazu Ohkubo, Yusuke Yamauchi

    CHEMICAL COMMUNICATIONS   46 巻 ( 23 ) 頁: 4166 - 4168   2010年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ROYAL SOC CHEMISTRY  

    Size-controlled nanosheet colloids of fluorohectorite and fluortetrasilicic mica were prepared in high yield and their transitions to fluid liquid crystal (LC) phases with highly ordered lamellar structures were identified over a wide concentration range, which is a rare case for clay mineral systems.

    DOI: 10.1039/b927335b

    Web of Science

  300. Evolution of standing mesochannels on porous anodic alumina substrates with designed conical holes

    Yusuke Yamauchi, Tomota Nagaura, Ayako Ishikawa, Toyohiro Chikyow, Satoru Inoue

    Journal of the American Chemical Society   130 巻 ( 31 ) 頁: 10165 - 10170   2008年8月

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    掲載種別:研究論文(学術雑誌)  

    We report the formation of standing mesochannels simply by spin-coating a precursor solution onto a PAA (porous anodic alumina) substrate with designed conical holes, utilizing exactly the same precursors and reaction conditions that form two-dimensional (2D) hexagonal mesoporous SBA-15-type films. When the aspect ratios of the conical holes are lower, the sponge-like mesopores are generated within the conical holes. Such a formation of sponge-like mesostructures truly acts as a trigger for the evolution of perpendicularly oriented and tilted mesochannels. On the other hand, when the PAA substrates with high-aspect cones are used, the mesochannels are stacked like a doughnut within the conical holes, which leads to parallel orientations of the mesochannels in the continuous film region. © 2008 American Chemical Society.

    DOI: 10.1021/ja7107036

    Scopus

  301. Cycle and rate properties of mesoporous tin anode for lithium ion secondary batteries 査読有り

    Hiroki Nara, Yoshiki Fukuhara, Azusa Takai, Masaki Komatsu, Hitomi Mukaibo, Yusuke Yamauchi, Toshiyuki Momma, Kazuyuki Kuroda, Tetsuya Osaka

    CHEMISTRY LETTERS   37 巻 ( 2 ) 頁: 142 - 143   2008年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:CHEMICAL SOC JAPAN  

    A mesoporous Sn anode was electrodeposited in the presence of lyotropic liquid crystals made of nonionic surfactants. The introduction of mesoporous structure was effective for the accommodation of volume change of Sn during charge and discharge cycling of Li ions. The discharge capacity of the mesoporous Sn anode at 1 C rate was as high as 425 mA h g(-1) at the 100th cycle, and that was as high as 320 mA It g(-1) at the 100th cycle even though at 5 degrees C rate.

    DOI: 10.1246/cl.2008.142

    Web of Science

    Scopus

    その他リンク: http://orcid.org/0000-0002-1356-9429

  302. Three-dimensional GaN nano-structure fabrication by focused ion beam chemical vapor deposition

    T. Nagata, P. Ahmet, Y. Yamauchi, Y. Sakuma, T. Sekiguchi, T. Chikyow

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   242 巻 ( 1-2 ) 頁: 250 - 252   2006年1月

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    掲載種別:研究論文(国際会議プロシーディングス)  

    We have demonstrated a position controlled GaN nano-structure fabrication by ion beam mediated growth methods. For this fabrication, we used two different methods. One is the "droplet epitaxy" which is a micro-crystal growth from Ga droplet followed by nitridation. By this method, the GaN micro-crystals in about 800 nm were found to be grown and cathode luminescence in broad wavelength (400-600 nm) were observed. Another one is the focused ion beam assisted chemical vapor deposition. Ga precursor gas and atomic N radicals impinged onto the surface simultaneously during the irradiation. By this method, the GaN nano-crystals of 200 nm × 100 nm block with 50 nm height was fabricated and strong near-band edge emission at 3.37 eV from GaN were observed. From the obtained results, ion beam assisted chemical vapor deposition proved to be a promising method to make GaN nano-crystal arrays. © 2005 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nimb.2005.08.130

    Scopus

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MISC 7

  1. Nanoengineering Metal–Organic Framework-Based Materials for Use in Electrochemical CO2 Reduction Reactions

    Yingji Zhao, Lingling Zheng, Dong Jiang, Wei Xia, Xingtao Xu, Yusuke Yamauchi, Jianping Ge, Jing Tang  

    Small17 巻 ( 16 )   2021年4月

     詳細を見る

    記述言語:英語   掲載種別:書評論文,書評,文献紹介等   出版者・発行元:John Wiley and Sons Inc  

    Electrocatalytic reduction of carbon dioxide to valuable chemicals is a sustainable technology that can achieve a carbon-neutral energy cycle in the environment. Electrochemical CO2 reduction reaction (CO2RR) processes using metal–organic frameworks (MOFs), featuring atomically dispersed active sites, large surface area, high porosity, controllable morphology, and remarkable tunability, have attracted considerable research attention. Well-defined MOFs can be constructed to improve conductivity, introduce active centers, and form carbon-based single-atom catalysts (SACs) with enhanced active sites that are accessible for the development of CO2 conversion. In this review, the progress on pristine MOFs, MOF hybrids, and MOF-derived carbon-based SACs is summarized for the electrocatalytic reduction of CO2. Finally, the limitations and potential improvement directions with respect to the advancement of MOF-related materials for the field of research are discussed. These summaries are expected to provide inspiration on reasonable design to develop stable and high-efficiency MOFs-based electrocatalysts for CO2RR.

    DOI: 10.1002/smll.202006590

    Scopus

    PubMed

  2. Graphene Nanoarchitectonics: Recent Advances in Graphene-Based Electrocatalysts for Hydrogen Evolution Reaction

    Huajie Huang, Minmin Yan, Cuizhen Yang, Haiyan He, Quanguo Jiang, Lu Yang, Zhiyong Lu, Ziqi Sun, Xingtao Xu, Yoshio Bando, Yusuke Yamauchi  

    Advanced Materials31 巻 ( 48 )   2019年11月

     詳細を見る

    記述言語:英語   掲載種別:書評論文,書評,文献紹介等   出版者・発行元:Wiley-VCH Verlag  

    Under the double pressures of both the energy crisis and environmental pollution, the exploitation and utilization of hydrogen, a clean and renewable power resource, has become an important trend in the development of sustainable energy-production and energy-consumption systems. In this regard, the electrocatalytic hydrogen evolution reaction (HER) provides an efficient and clean pathway for the mass production of hydrogen fuel and has motivated the design and construction of highly active HER electrocatalysts of an acceptable cost. In particular, graphene-based electrocatalysts commonly exhibit an enhanced HER performance owing to their distinctive structural merits, including a large surface area, high electrical conductivity, and good chemical stability. Considering the rapidly growing research enthusiasm for this topic over the last several years, herein, a panoramic review of recent advances in graphene-based electrocatalysts is presented, covering various advanced synthetic strategies, microstructural characterizations, and the applications of such materials in HER electrocatalysis. Lastly, future perspectives on the challenges and opportunities awaiting this emerging field are proposed and discussed.

    DOI: 10.1002/adma.201903415

    Scopus

    PubMed

  3. Nanoarchitectonics for Transition-Metal-Sulfide-Based Electrocatalysts for Water Splitting

    Yanna Guo, Teahoon Park, Jin Woo Yi, Joel Henzie, Jeonghun Kim, Zhongli Wang, Bo Jiang, Yoshio Bando, Yoshiyuki Sugahara, Jing Tang, Yusuke Yamauchi  

    Advanced Materials31 巻 ( 17 )   2019年4月

     詳細を見る

    記述言語:英語   掲載種別:書評論文,書評,文献紹介等   出版者・発行元:Wiley-VCH Verlag  

    Heterogenous electrocatalysts based on transition metal sulfides (TMS) are being actively explored in renewable energy research because nanostructured forms support high intrinsic activities for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Herein, it is described how researchers are working to improve the performance of TMS-based materials by manipulating their internal and external nanoarchitectures. A general introduction to the water-splitting reaction is initially provided to explain the most important parameters in accessing the catalytic performance of nanomaterials catalysts. Later, the general synthetic methods used to prepare TMS-based materials are explained in order to delve into the various strategies being used to achieve higher electrocatalytic performance in the HER. Complementary strategies can be used to increase the OER performance of TMS, resulting in bifunctional water-splitting electrocatalysts for both the HER and the OER. Finally, the current challenges and future opportunities of TMS materials in the context of water splitting are summarized. The aim herein is to provide insights gathered in the process of studying TMS, and describe valuable guidelines for engineering other kinds of nanomaterial catalysts for energy conversion and storage technologies.

    DOI: 10.1002/adma.201807134

    Scopus

    PubMed

  4. Hollow Functional Materials Derived from Metal–Organic Frameworks: Synthetic Strategies, Conversion Mechanisms, and Electrochemical Applications

    Ze-Xing Cai, Zhong-Li Wang, Jeonghun Kim, Yusuke Yamauchi  

    Advanced Materials31 巻 ( 11 )   2019年3月

     詳細を見る

    記述言語:英語   掲載種別:書評論文,書評,文献紹介等   出版者・発行元:Wiley-VCH Verlag  

    Hollow materials derived from metal–organic frameworks (MOFs), by virtue of their controllable configuration, composition, porosity, and specific surface area, have shown fascinating physicochemical properties and widespread applications, especially in electrochemical energy storage and conversion. Here, the recent advances in the controllable synthesis are discussed, mainly focusing on the conversion mechanisms from MOFs to hollow-structured materials. The synthetic strategies of MOF-derived hollow-structured materials are broadly sorted into two categories: the controllable synthesis of hollow MOFs and subsequent pyrolysis into functional materials, and the controllable conversion of solid MOFs with predesigned composition and morphology into hollow structures. Based on the formation processes of hollow MOFs and the conversion processes of solid MOFs, the synthetic strategies are further conceptually grouped into six categories: template-mediated assembly, stepped dissolution–regrowth, selective chemical etching, interfacial ion exchange, heterogeneous contraction, and self-catalytic pyrolysis. By analyzing and discussing 14 types of reaction processes in detail, a systematic mechanism of conversion from MOFs to hollow-structured materials is exhibited. Afterward, the applications of these hollow structures as electrode materials for lithium-ion batteries, hybrid supercapacitors, and electrocatalysis are presented. Finally, an outlook on the emergent challenges and future developments in terms of their controllable fabrications and electrochemical applications is further discussed.

    DOI: 10.1002/adma.201804903

    Scopus

    PubMed

  5. Rational design and construction of nanoporous iron- and nitrogen-doped carbon electrocatalysts for oxygen reduction reaction

    Haibo Tan, Jing Tang, Jeonghun Kim, Yusuf Valentino Kaneti, Yong-Mook Kang, Yoshiyuki Sugahara, Yusuke Yamauchi  

    Journal of Materials Chemistry A7 巻 ( 4 ) 頁: 1380 - 1393   2019年

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    記述言語:英語   掲載種別:書評論文,書評,文献紹介等   出版者・発行元:Royal Society of Chemistry  

    Polymer electrolyte membrane fuel cells (PEMFCs) are one of the most sustainable energy conversion systems because of their high energy conversion efficiency and low/zero emissions. Unfortunately, the utilization of highly active but costly platinum (Pt)-based electrocatalysts is necessary to accelerate the sluggish kinetics of cathodic oxygen reduction in PEMFCs for practical applications. Under such circumstance, enormous efforts have been devoted to the exploration of inexpensive and earth-abundant non-noble metal-based electrocatalysts to replace or reduce the usage of Pt-based electrocatalysts in the past decades. Heteroatom-doped carbon materials are among some of the most promising non-noble metal-based electrocatalysts, especially transition metal- and nitrogen-doped carbon materials. According to previous findings, iron- and nitrogen-doped carbon (Fe-N/C) materials derived using various methodologies showed outstanding electrocatalytic activity and impressive durability. Therefore, tremendous progress has been achieved in the synthesis of Fe-N/C and the identification of active sites for oxygen reduction reaction (ORR). Creating ORR active sites, such as Fe-N x , N/C, and Fe 3 C@C moieties, increasing the density of active sites and improving the utilization efficiency of ORR active sites are considered as the most effective steps for enhancing the ORR performance of Fe-N/C electrocatalysts. The creation of nanoporous structure of Fe-N/C electrocatalysts plays critical roles in increasing the number of ORR active sites and exposing abundant accessible ORR active sites to electrolytes. In addition, the interconnected nanopores facilitate the mass transfer of reactants and products inside the carbon matrix during the ORR reactions. Therefore, this review pays specific attention to the design and synthetic strategies of Fe-N/C materials with porous structures and their merits toward ORR. Finally, based on the construction of nanoporous structures, the challenges and perspectives with respect to future development of highly active nanoporous Fe-N/C electrocatalysts are discussed.

    DOI: 10.1039/c8ta08870e

    Scopus

  6. Carbon materials: MOF morphologies in control

    Jing Tang, Yusuke Yamauchi  

    Nature Chemistry8 巻 ( 7 ) 頁: 638 - 639   2016年6月

     詳細を見る

    記述言語:英語   掲載種別:書評論文,書評,文献紹介等   出版者・発行元:Nature Publishing Group  

    DOI: 10.1038/nchem.2548

    Scopus

    PubMed

  7. Nanostructured nonprecious metal catalysts for electrochemical reduction of carbon dioxide

    Zhong-Li Wang, Cuiling Li, Yusuke Yamauchi  

    Nano Today11 巻 ( 3 ) 頁: 373 - 391   2016年6月

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    記述言語:英語   掲載種別:書評論文,書評,文献紹介等   出版者・発行元:Elsevier B.V.  

    Electrochemical reduction of carbon dioxide powered by renewable electricity represents a promising solution for energy and environmental sustainability. To enable this technology, active and selective catalysts must be developed. Noble metals exhibit excellent activity but are hampered by their low abundance and high cost. Thus, searching for efficient nonprecious metal catalysts for practical applications is vital. In this review, the recent progress on nanostructured nonprecious metal catalysts for electrochemical reduction of carbon dioxide is summarized. These catalysts are classified into five categories: metals, partially oxidized metals, metal oxides and sulfides, doped carbons, and organic frameworks. The areas of focus are material synthesis, structure and components, catalytic performance, and reaction mechanisms. Several important factors that affect activity, such as particle size, interface strain, grain boundary, crystal facet, oxidation state, heteroatom configuration, and organic hybrid, are discussed. Finally, some perspectives are provided for future developments and directions of the synthesis and functionalization of nonprecious metal catalysts, with emphasis on the potential advantages of nanoporous materials for carbon dioxide reduction.

    DOI: 10.1016/j.nantod.2016.05.007

    Scopus

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講演・口頭発表等 6

  1. 物質空間テクトニクス:PCP/MOFの高次構造制御と機能開拓

    日本化学会 第104春季年会(2024)  2024年3月20日 

     詳細を見る

    開催年月日: 2024年3月

  2. 導電性ナノ多孔体の創製

    日本化学会 第104春季年会(2024)  2024年3月18日 

     詳細を見る

    開催年月日: 2024年3月

  3. 金属有機構造体の熱分解による炭素系複合材料の創製

    公益社団法人日本セラミックス協会 2024年年会  2024年3月15日 

     詳細を見る

    開催年月日: 2024年3月

  4. 「超」ナノ空間触媒の創製

    第33 回キャラクタリゼーション講習会 「触媒および表面の解析に役立つキャラクタリゼーションの基礎と実際」  2023年12月20日 

     詳細を見る

    開催年月日: 2023年12月

  5. 多孔体のパラダイムシフト:導電性ナノ多孔体の創製

    省エネルギーに貢献する粒子設計・粉体プロセスの薬工連携研究会  2023年10月6日 

     詳細を見る

    開催年月日: 2023年10月

  6. 第二世代多孔体の開発:物質と空間のテクトニクス

    キャノン財団 第14回(2023年)研究助成贈呈式  2023年4月21日 

     詳細を見る

    開催年月日: 2023年4月

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科研費 21

  1. メソポーラスプラズモニック薄膜の合成と応用

    研究課題/研究課題番号:22F20370  2022年4月 - 2024年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, GUSELNIKOVA OLGA

  2. MOFを出発物質として用いた固体スーパーキャパシタ用新規電極材料の創製

    研究課題/研究課題番号:21F20072  2021年9月 - 2023年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, LIU SHUDE

      詳細を見る

    We have been engaged in MOF-derived electrode materials as energy storage materials for solid-state flexible devices, aiming to promote the application in the field of intelligence and the development of sustainable energy. We have mainly focused on the effects of crystal structure, material morphology, and chemical defects (vacancies and doping) on electrode reaction kinetics, electron and charge transport at the electrode-electrolyte interface, and electrical properties.

  3. 新規ナノ多孔性金属電極を用いた携帯型電気化学癌診断プラットフォームの構築

    研究課題/研究課題番号:21F20039  2021年9月 - 2023年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, MASUD MOSTAFA KAMAL

      詳細を見る

    The goal of this project was to develop an inexpensive, portable and automated system for rapid disease diagnosis by using novel metal nanoarchitectures.
    These projects are:
    a. Hydrogel integrated mesoporous gold chronocoulometric sensor for ultrasensitive detection of miRNA.
    - We fabricated mesoporous gold and integrated it with the hydrogel chemistry to harness the best intrinsic activity from the system to apply for microRNA sensing. The developed sensor provided a much easy, reusable, and highly sensitive microRNA sensor.
    b. Nanoarchitectured superparamagnetic iron oxide-doped mesoporous carbon nanozymes for biosensing.
    - We developed a superparamagnetic nano-enzyme that showed high potentiality for magnetic isolation and purification as well as nano-enzyme activity.

  4. MOFおよびその誘導体を用いた容量性脱イオン法による淡水化処理

    研究課題/研究課題番号:20F20338  2020年11月 - 2023年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, XU XINGTAO

      詳細を見る

    In the past years, we have employed 2D substrates to construct metal-organic framework (MOF)-based nanoarchitectured materials on them and have achieved excellent CDI performances.
    <BR>
    Various 2D substrates such as MXene, ZIF-L, graphene, etc. were utilized, and we expanded this concept to other polymer systems beyond MOFs, covalent organic frameworks (COFs), and polymer-based materials such as conductive polymers.
    <BR>
    Besides, we also realized the interweaving of PANIs among MOF-based particles and prepared PANI-MOF nanoarchitectures. This material showed great potential for CDI applications.

  5. メソポーラス薄膜を用いた生体物質センシング

    研究課題/研究課題番号:19H02803  2019年4月 - 2022年3月

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    山内 悠輔

      詳細を見る

    従来から界面活性剤をはじめとする両親媒性分子を用いて,世界で初めて高品質なナノポーラス金属(金属ナノ多孔体)を実現させた.本物質系は,骨格が金属のみから形成している電気伝導性の高い多孔体であり,従来の無機酸化物系とは異なる電気化学系への応用が期待される.本研究では,これらの概念をさらに拡張し,グルコースセンサへの展開を推進した.また,単なるグルコースセンサの開発を目指すだけではなく,金属ナノ多孔体の特徴を最大限に活かし,物性-ナノ構造の相関性を理解することで,新しい学理の構築も目的にした.全体の流れとしては,基盤技術の開発を主に行い,次に構造の最適化,更にはデバイス化と進めた.

  6. 金属酸化物,及びリン酸塩を骨格に有する新規メソ多孔体の合成と応用

    研究課題/研究課題番号:19F19070  2019年4月 - 2021年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, BHANJA PIYALI

      詳細を見る

    We synthesized a new microporous organic-inorganic hybrid nickel phosphonate (NiPPA) material under hydrothermal reaction condition without the use of structure directing agent. The microporous NiPPA material was converted to N, P-codoped nickel oxide (NP/NiO) and N, O-codoped nickel phosphide (NO/NiP) following pyrolysis under air and nitrogen atmospheres, respectively. These high surface area materials were subsequently explored as electrocatalysts towards oxygen evolution reaction (OER) in alkaline media. Among the three catalysts, NP/NiO exhibited the highest electrocatalytic activity for OER with an overpotential of 332 mV to reach a current density of 10 mA cm-2 and a low Tafel slope of 65.6 mV dec-1 in 1.0 M KOH solution. Furthermore, the as-prepared NP/NiO catalyst displayed an outstanding stability over a period of 15 h, suggesting the high durability of this catalyst for OER.

  7. 高エネルギー密度化に向けたナノ構造体有する新規電極材料の合成

    研究課題/研究課題番号:18F18764  2018年7月 - 2021年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, DING BING

      詳細を見る

    The rational design and fabrication of ordered mesoporous materials with highly exposed surface area are of great significance to address the fundamental challenges in electrochemistry-related applications by providing more active sites and fast ion/gas diffusion channel. In FY 2020, a self-template method was applied to prepare novel nanoarchitectured carbon nanoplates by depositing resol-F127 micelles onto the surface of metal-organic-framework (MOF) nanosheets, followed by hydrothermal reaction and carbonization. The parameters influencing the morphology and microstructure of the resulting materials, i.e., the MOF-to-resol-F127 ratio and the concentration of resol-F127 micelles, were systematically investigated.

  8. 高度エネルギーデバイスに向けたメソ細孔有する層状ナノ物質の創製

    研究課題/研究課題番号:18F18038  2018年7月 - 2020年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, WANG JIE

      詳細を見る

    In the last year of this JSPS, we focused on sandwich-structured ordered mesoporous polydopamine/MXene hybrids. Organic polymers have attracted significant interest as electrodes for energy storage devices because of their advantages, including molecular flexibility, cost-effectiveness, and environmentally friendly nature. Nevertheless, the real implementation of polymer-based electrodes is restricted by their poor stability, low capacity, and slow electron-transfer/ion diffusion kinetics. Herein, a sandwich-structured composite of ordered mesoporous polydopamine (OMPDA)/Ti3C2Tx was fabricated by in situ polymerization of dopamine on the surface of Ti3C2Tx via employing the PS-b-PEO block polymer as a soft template. The OMPDA layers with vertically oriented, accessible nanopores (around 20 nm) provided a continuous pore channel for ion diffusion, while the Ti3C2Tx layers guaranteed a fast electron-transfer path. As one of the potential applications, the OMPDA/Ti3C2Tx composite anode exhibited high reversible capacity, good rate performance, and excellent cyclability for lithium-ion batteries. The in situ transmission electron microscopy analysis revealed that the OMPDA in the composite only showed a small volume expansion and almost preserved the initial morphology during lithiation.
    This finding will provide valuable knowledge to tackle the challenges of the restacking of 2D materials, help to identify the most promising architecture and further improve the electrochemical performance of 2D materials.

  9. 様々な組成・構造を有するMOF関連物質の合成

    研究課題/研究課題番号:17F17792  2017年11月 - 2020年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, CAI ZEXING

      詳細を見る

    Up to date we have developed several effective strategies to design and synthesize various porous nanostructures from MOFs. In this last stage of our JSPS project, we demonstrated some interesting chemical and physical properties of the obtained nanostructures.
    Hierarchical tubular-structured CoS2-MoS2/C as efficient electrocatalysts were fabricated through a unique metal-organic framework (MOF) mediated self-sacrificial templating. Core-shell structured MoO3@ZIF-67 nanorods were used both as a precursor and a sacrificial template to form the one-dimensional tubular heterostructure where vertically aligned two-dimensional CoS2-MoS2 nanosheets were formed on the MOF-derived carbon tube. Trace amounts of noble metals (Pd, Rh, and Ru) were successfully introduced to enhance the electrocatalytic property of the CoS2-MoS2/C nanocomposites.
    Overall, this MOF-mediated strategy can be extended to the rational design and synthesis of other hollow heterogeneous catalysts for scalable hydrogen generation.

  10. 金属結晶中におけるConcave型ナノ細孔の新規固体界面の探求

    研究課題/研究課題番号:17K19044  2017年6月 - 2019年3月

    日本学術振興会  科学研究費助成事業  挑戦的研究(萌芽)

    山内 悠輔

      詳細を見る

    本研究課題においては,新たな白金メソ多孔体(メソポーラス白金)類を創製し,それらの電極触媒としての機能を詳細に調査する.特に,細孔表面に存在する配位不飽和金属原子は,触媒反応を大幅に促進させることができる活性なサイトとして働くことが期待できる.得られたサンプルの詳細な電子顕微鏡観察の結果から,高い結晶性を有する細孔壁を構築することにより,通常の金属ナノ粒子では形成が難しいとされている (熱的安定性の低い)高次結晶面やステップ,キンクなどが,細孔空間の露出表面には多く存在することが明らかになった.

  11. キラルセンシングのためのキラル識別金属ナノ空間の構築

    研究課題/研究課題番号:17H05393  2017年4月 - 2019年3月

    日本学術振興会  科学研究費助成事業  新学術領域研究(研究領域提案型)

    山内 悠輔

      詳細を見る

    本研究では,メソポーラス金属にキラル選択性のある細孔表面を作り出し,キラルセンシングへの応用を目的としている.キラル認識は,電極表面のキラル認識部と認識対象となるキラル分子との親和力に鏡像体間で差が生じることから,認識に伴う出力信号の差をサイクリックボルタンメトリ(電気化学的な手法)により測定することで確認できる.具体的に実験では,メソポーラス金属の作製の際に,ブロックコポリマーを水溶液中でミセル化し,目的とする金属の金属塩類を溶解させた後,キラル分子をその溶液中に共存させ,金属の析出にそのキラル分子の転写を金属表面で行う.すなわち,それらの分子構造の転写された形(完全ではないものの)が金属骨格中に残る.このキラル分子転写した金属表面は,様々な生体物質のキラリティを判断することができることを確認した.
    <BR>
    さらに,異なる細孔径や壁厚など,用いる界面活性剤の種類・分子量や金属イオンの種類・量を調整することにより,様々なメソポーラス金属の合成に成功した.特に,合金化することで,グルコースやDOPAなどの生体関連物質の酸化反応を大幅に促進させることができた.
    <BR>
    また,リソグラフィー技術により,基板上に導電部位をパターンし,その上でのメソポーラス金属膜の成膜にも成功している.このようにパターンニングすることで,通常の薄膜よりも,ゲスト種がアクセスしやすい構造になっており,またデバイスの一部(検出部)として搭載することを考えた場合にも,非常に魅力的な構造と言える.また,高分子の薄膜を一層均一に塗布することで,食塩などの阻害物質の影響を抑えることにも成功し,実デバイスの設計を考えた上では重要な知見である.

  12. 様々な金属を用いたメソポーラスMetal Phosphonate物質の新合成

    研究課題/研究課題番号:17F17047  2017年4月 - 2018年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, PRAMANIK MALAY

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    In some cases, the obtained materials showed less-ordered/dis-ordered porous structure with the amorphous pore walls and less surface area, due to the lack of intermolecular interaction between aliphatic chains of phosphonic acid precursors. In this year, we designed new phosphonic acid sources with aromatic rings, and could increase effective interaction to realize highly mesostructural ordering and crystalized walls. Especially, we considered the interaction between surfactants, phosphonic acids, and metal precursors. We used cetyltrimethylammonium bromide (CTAB), oligomeric surfactants (C16EO10, C16EO20), and triblock copolymers (EO80PO30EO80, EO106PO70EO106, and EO20PO70EO20) as structure-directing agents. To remove the templates, as-prepared mesostructured samples were washed with solvents. After that, we carefully characterized the obtained mesoporous samples and we could find out the optimal synthetic conditions.

  13. MOFを出発原料として用いたキャパシタ用多孔質電極の合成

    研究課題/研究課題番号:16F16722  2016年10月 - 2019年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, KANETI YUSUF VALENTINO

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    This year's aim is to develop a general method for producing mesoporous oxide nanosheets using MOFs as sacrificial templates. We demonstrated the general preparation of mesoporous 2D metal-doped Co3O4 nanosheets using MOFs as templates/precursors, including Cu-BTC, Co-BTC, MOF-808 (Zr-BTC) and Fe-BTC. The resulting 2D metal-doped Co3O4 nanosheets exhibited relatively large specific surface areas of up to 120 m2 g-1 with narrow pore size distribution in the mesoporous range. More importantly, the pore size distribution could be controlled by adjusting the calcination temperature of the precursor nanosheets. When employed as electrocatalysts for OER, the Fe-doped Co3O4 nanosheets derived from Fe-BTC exhibited high performance.

  14. ハロゲン化鉛ペロブスカイトメソ多孔体の合成

    研究課題/研究課題番号:16F16050  2016年4月 - 2018年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, MALGRAS VICTOR

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    Mainly we carried the research on mesoporous template/perovskite composite using thin film technology. More precisely, we synthesized film with hierarchical pore structures (8 and 3 nm diameters), which greatly enhances the precursor solution penetration through the template. The composite has a high concentration of small crystals (3 nm) which dominates the optical properties. Strong quantum confinement is observed as well as increased photoluminescence quantum efficiency. These preliminary results are encouraging for future works related to integration of such composite in light emitting devices.

  15. エネルギー変換のための新規カーボン電極触媒の開発

    研究課題/研究課題番号:15F15766  2015年11月 - 2018年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, WANG ZHONGLI

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    We successfully applied redox units of polyaniline (PAni) to in-situ cooperatively assemble highly active Ru nanoclusters in a hierarchically-ordered carbon electrode. There is a selective ion-bonding effect in the redox units of PAni that the oxidized quinonoid imine (QI) can strongly bond Ru complex ions whereas the reduced benzenoid amine (BA) cannot. By optimizing the ratio of QI to BA, Ru complexes were spatially confined in the outer layer of the PAni framework. Carbonization of Ru-PAni hybrid induced nucleation in the outer surface of the carbon support, generating nearly monodisperse Ru nanoclusters. The catalyst had only 2 wt% loading of Ru, but exhibited an ultrahigh mass activity for the hydrogen evolution reaction that is 7 times better than commercial Pt/C catalyst.

  16. 多孔質Pt薄膜を用いた超高効率不斉触媒電極の作製

    研究課題/研究課題番号:26870593  2014年4月 - 2017年3月

    日本学術振興会  科学研究費助成事業  若手研究(B)

    松永 真理子, 山内 悠輔, 梶 晃平, 青山 裕之, 遠藤 真智士, 松澤 拓也

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    実像と鏡像の関係にある分子(鏡像異性体)は生体内で異なる活性を示すため,高感度に識別することが重要である.本研究では,広い濃度範囲で鏡像異性体を識別する電極の作製を目指し,高指数面を多量に有する白金電極と電気化学検出の利用を検討した.作製条件を精査し作製した多孔質白金電極により鏡像異性体の種類や濃度を一方の鏡像異性体の溶液だけでなく鏡像異性体混合溶液からも検出できることを見出した.また,電気化学的手法を用いてキラル選択性の発現機構を解析した.

  17. 電析法によるナノポーラス金属の合成とその応用

    研究課題/研究課題番号:26708028  2014年4月 - 2017年3月

    日本学術振興会  科学研究費助成事業  若手研究(A)

    山内 悠輔

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    様々な界面活性剤を用いて,低濃度界面活性剤溶液を作製し,金属イオン種を溶液中に溶存させた.金属イオンの還元後,ミセルの大きさに応じた細孔が形成した.また,Co,Pd,Auなどを加えたPt系合金などへの展開も同時に行った.ナノポーラス金属は,従来の報告には例を見ない非常に高い秩序性を有しており,特異なメソ構造に起因した今までにない新たな物性の発現が十分に期待できる.例えば,細孔壁には多くのキンクやステップがあり,これら電極触媒反応の活性サイトとして機能することができた.従来の市販のPt触媒と比較した実験も展開し,これらのサイトの有効性を実証している.

  18. ナノ構造制御された金属電極材料のテーラード・デザイン

    研究課題/研究課題番号:13F03505  2013年4月 - 2016年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, LI CUILING, LI Cuiling

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    Introduction of mesoporous structures to the sensitive materials of self-powered nanosystems can be expected to be as a new direction in the fabrication of self-powered nanodevices with superior performance and low cost. Based on the experiences in the fabrication of porous materials and the sensing applications, I put great efforts on developing novel porous materials by using new concepts.I reported the first success on the fabrication of mesoporous Au films by using a 'polymeric micelle' approach, and a highly enhanced sensing performance was realized by using the mesoporous Au film. Mesooporous Au films with tunable pore size in the range of 10 to 60 nm were firstly obtained by using the reliable soft-templating approach. When light is incident on the mesoporous Au films, the electrons oscillate collectively, a so-called plasmon, and this greatly enhances the electromagnetic field . According to Babinet's principle in optics, the inverse structure, a mesoporous film, should lead to similar local electromagnetic field enhancements. In this work we found mesospace stimulated optical effects of the mesoporous Au films, which shed new light on the tailoring the optical functionality. From Apr. 2015 to the end of my JSPS period, I have published several papers in top journals, including Nature Commnunications, The Journal of American Chemical Society, and Nano Research. All of the publications are highlighted by both peer researchers and the academic media.

  19. 新しいブロックコポリマーを用いた機能性中空ナノ粒子の合成とその応用

    研究課題/研究課題番号:13F03204  2013年4月 - 2015年3月

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    山内 悠輔, BASTAKOTI Bishnu

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    両親媒性の特徴を有し,分子量の比較的大きなブロックコポリマーを用いて,溶液中で安定な球状ミセルを形成させた.これらのミセルは,通常の低分子ミセルとは異なり,超希薄溶液中であっても,ミセル形状が安定に保持できることがわかった.このような特徴を活かし,無機種の化学反応をミセル上で進行させることで,様々な金属酸化物,金属の組成からなる中空粒子,またナノ多孔体の合成を行った.中空粒子は,内部に空間を有しており,そこに様々な物質,分子を導入することが可能であり,環境触媒,医療材料への展開が大いに期待できる.

  20. 分子テンプレートを用いたメソポーラス金属の合成

    研究課題/研究課題番号:22750193  2010年 - 2011年

    日本学術振興会  科学研究費助成事業  若手研究(B)

    山内 悠輔

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    界面活性剤の自己組織化プロセスと電気化学的な手法を融合させ,様々な組成・形態・構造のメソポーラス金属を作製する.特に,電池の電極やセンシング材料などへの応用を第一段階のターゲットにし,メソポーラス金属のテーラーメイドなデザインを行い,応用例を提案する.

  21. 新規メソポーラス金属の精密設計とその実践的応用

    研究課題/研究課題番号:19850031  2007年 - 2008年

    日本学術振興会  科学研究費助成事業  若手研究(スタートアップ)

    山内 悠輔

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    研究成果の概要 : 現在, 電子機器の小型化・普及に伴い, そのエネルギー源である電池等の小型化が求められている。そこで, 高い表面積を有し, 規則的な細孔が配列したメソポーラス金属を微細な凹凸部へ均一に埋め込み, メソポーラス金属を反応場に利用する小型センサー・小型リアクタ等, MEMSを基本とする新たな電子デバイスの作製を行う。具体的には、各種デバイスへの直接組み込みを実現すべく, 様々なデバイス内への合成する手法を開拓すると伴に, デバイスの作動に適した組成のメソポーラス金属材料の開発を試みる。

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