Faculty Profiles - MATSUO Yutaka

Papers - MATSUO Yutaka

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Nitrogen-Containing Carbon-Encapsulated Platinum Electrocatalysts Supported by Single-Walled Carbon Nanotubes for Polymer Electrolyte Fuel Cells Reviewed International journal

Qiao Chen, Chu‐Yang Yu, Yong‐Chang Zhai, Takashi Watanabe, Masaya Kawasumi, Miftakhul Huda, Yutaka Matsuo

Small Methods 2025.4

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

白金（Pt）ベースの電気触媒は、固体高分子形燃料電池（PEFC）における酸素還元反応（ORR）の好ましい選択肢として広く認識されています。しかし、その安定性の低さは依然として重大な課題です。この問題を解決するために、強化直接注入熱分解合成（e-DIPS）法で製造された高結晶性・高純度の単層カーボンナノチューブ（SWCNT）を担体として利用し、窒素導入処理を施すことで窒素含有SWCNT（N-SWCNT）が製造されます。アモルファスカーボンシェルでカプセル化された白金電気触媒は、簡便で工業的に好ましい溶液プラズマ（SP）法を用いて窒素含有単層カーボンナノチューブ（Pt/N-SWCNT）上に合成されます。高解像度透過型電子顕微鏡観察により、Pt/N-SWCNT中のPtナノ粒子は窒素含有カーボンシェルでカプセル化されていることが示されました。単セルの膜電極接合体（MEA）のカソード触媒としてPt/N-SWCNT-MEAを用いた場合、加速耐久試験（ADT）16,000サイクル後でも最大出力密度はわずか20.8%しか低下しません。高電圧加速（1.0～1.5 V）後も、Pt/N-SWCNT-MEAの最大出力密度の低下は39.5%と、Pt/SWCNT-MEAの48.3%、市販のPt/Cの93.2%と比較して低い値を示しています。これらの結果は、窒素含有カーボンシェルとSWCNTを担体として用いることで、触媒の安定性と活性が向上し、PEFCの優れた性能につながっていることを示しています。

DOI： 10.1002/smtd.202500074

Web of Science

PubMed

Low-Temperature Synthesis of Weakly Confined Carbyne Inside Single-Walled Carbon Nanotubes Reviewed International coauthorship Open Access

Bo-Wen Zhang, Xi-Yang Qiu, Yicheng Ma, Qingmei Hu, Aina Fitó-Parera, Ikuma Kohata, Ya Feng, Yongjia Zheng, Chiyu Zhang, Yutaka Matsuo, YuHuang Wang, Shohei Chiashi, Keigo Otsuka, Rong Xiang, Dmitry I. Levshov, Sofie Cambré, Wim Wenseleers, Slava V. Rotkin, Shigeo Maruyama

ACS Nano Vol. 19 ( 13 ) page： 12996 - 13006 2025.3

Reaction Mechanism with Indano[60]fullerene Bromide for Evaporable Fullerene Derivatives Reviewed

Hirofumi Amada, Yong-Chang Zhai, Koki Yamanaka, Qing-Jun Shui, Kin-ichi Oyama, Kazuhira Miwa, Hao-Sheng Lin, Yutaka Matsuo

Chemical Communications Vol. 61 ( 8 ) page： 1665 - 1668 2025.1

Heptamethine Cyanine Dye-Doped Single-Walled Carbon Nanotube Electrodes for Improving Performance of HTL-Free Perovskite Solar Cells Invited Reviewed International coauthorship

Man-Ge Cai, Arina Watanabe, Zhenyu Xu, Yong-Chang Zhai, Achmad Syarif Hidayat, Naoki Ueoka, Miftakhul Huda, Kimitaka Higuchi, Esko I. Kauppinen, Kazumasa Funabiki, Yutaka Matsuo

Molecules Vol. 30 ( 1 ) page： 60 2025.1

Facile Doping of 2,2,2-Trifluoroethanol to Single-Walled Carbon Nanotubes Electrodes for Durable Perovskite Solar Cells Reviewed

Naoki Ueoka, Achmad Syarif Hidayat, Hisayoshi Oshima, Yoshimasa Hijikata, Yutaka Matsuo

Photochem Vol. 4 ( 3 ) page： 319 - 333 2024.9

Hydrophobic Evaporable Fullerene Indanone Ketone with Low Sublimation Temperature and Amorphous Morphology for Inverted Perovskite Solar Cells Reviewed

Yong-Chang Zhai, Koki Yamanaka, Chu-Yang Yu, Jun-Zhuo Wang, Xue-Lin Zheng, Miftakhul Huda, Naoyuki Imai, Takeshi Igarashi, Shinobu Aoyagi, Yutaka Matsuo

Chemical Communications Vol. 60 ( 70 ) page： 9420 - 9423 2024.8

Synthesis of Indano[60]fullerene Thioketone and Its Application in Organic Solar Cells Invited Reviewed

Yong-Chang Zhai, Shimon Oiwa, Shinobu Aoyagi, Shohei Ohno, Tsubasa Mikie, Jun-Zhuo Wang, Hirofumi Amada, Koki Yamanaka, Kazuhira Miwa, Naoyuki Imai, Takeshi Igarashi, Itaru Osaka, Yutaka Matsuo

Beilstein Journal of Organic Chemistry Vol. 20 page： 1270 - 1277 2024.5

Color-Changing Paper: Cellulose Nanofiber Films Incorporating Mechanochromic Fluorenylidene-Acridane Reviewed International journal

Keisuke Ogumi, Takehiro Arakawa, Bungo Okudera, Yuki Takimoto, Kohki Nagata, Kentaro Mishiba, Eiji Abe, Tomonaga Ueno, Junko Hieda, Kenji Omote, Hao-Sheng Lin, Yutaka Matsuo

ACS Applied Engineering Materials Vol. 2 ( 2 ) page： 397 - 403 2024.1

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：American Chemical Society

Color-changing paper using a cellulose nanofiber (CNF) film with mechanical pressure-sensing capability was produced using mechanochromic fluorenylidene-acridane (FA), which exhibits color change upon mechanical pressure. This flexible film exhibits a visible color change from yellow to green in response to a mechanical force. Surface investigations, such as scanning electron microscopy and contact angle analysis, revealed that the repeatability of the color change was dependent on the CNF diameter. Furthermore, the FA-CNF film exhibited a linear response to mechanical pressure within the range of 25–300 MPa, as quantitatively measured by mechanochromism using a combination of nanoimprint testing and UV–vis spectroscopy. This measurement suggested that the flexibility of the film improved mechanochromic sensitivity. When compared with the conventional method using UV–vis spectroscopy, a simpler image processing method employing CYM color analysis was able to visualize the distribution of the mechanical pressure.

DOI： 10.1021/acsaenm.3c00702

Evaporable Fullerene Indanones with Controlled Amorphous Morphology as Electron Transporters for Inverted Perovskite Solar Cells Reviewed International coauthorship

Qing-Jun Shui, Shiqi Shan, Yong-Chang Zhai, Shinobu Aoyagi, Seiichiro Izawa, Miftakhul Huda, Chu-Yang Yu, Lijian Zuo, Hongzheng Chen, Hao-Sheng Lin, Yutaka Matsuo

Journal of the American Chemical Society Vol. 145 ( 50 ) page： 27307 - 27315 2023.12

Single-walled Carbon Nanotubes Supported Pt Electrocatalyst as Cathode Catalyst of a Single Fuel Cell with High Durability Against Start-up/Shut-down Potential Cycling Reviewed

Miftakhul Huda, Tomoya Kawahara, Jae-Hyeok Park, Masaya Kawasumi, Yutaka Matsuo

ACS Applied Energy Materials Vol. 6 ( 24 ) page： 12226 - 12236 2023.12

Highly durable graphene-encapsulated platinum-based electrocatalyst for oxygen reduction reactions synthesized by solution plasma process Reviewed

Jae-Hyeok Park, Kyusung Kim, Xiaoyang Wang, Miftakhul Huda, Yasuyuki Sawada, Yutaka Matsuo, Nagahiro Saito, Masaya Kawasumi

Journal of Power Sources Vol. 580 page： 233419 - 233419 2023.10

Evaporable Indano[60]fullerene Ketone for the Electron Transport Layer of Inverted Perovskite Solar Cells Reviewed

Yutaka Matsuo, Soma Ishikawa, Hirofumi Amada, Kento Yokoyama, Qing-jun Shui, Miftakhul Huda, Naoki Ueoka, Hao-Sheng Lin

Chemistry Letters Vol. 52 ( 8 ) page： 685 - 687 2023.8

Cationic Nitrogen-doped Graphene Coated Silver as Low-work Function Electrode for Inverted Perovskite Solar Cells Reviewed

Kento Yokoyama, Hao-Sheng Lin, Qing-Jun Shui, Xiaoyang Wang, Nagahiro Saito, Yutaka Matsuo

Applied Physics Express Vol. 16 ( 8 ) page： 081001 2023.8

Spiro-OMeTAD Versus PTAA for Single-walled Carbon Nanotubes Electrode in Perovskite Solar Cells Reviewed International coauthorship

Bo-Wen Zhang, Hao-Sheng Lin, Yang Qiu, Qing-Jun Shui, Yong-Ji Zheng, Mohamad Almesfer, Esko I. Kauppinen, Yutaka Matsuo, Shigeo Maruyama

Carbon Vol. 205 page： 321 - 327 2023.3

Sequential click modification of a lithium-ion endohedral fullerene connecting small molecules through a dieneazide linker Reviewed

Fujiki Shogo, Takada Takumi, Nagasawa Shota, Okada Hiroshi, Sasano Yusuke, Kwon Eunsang, Matsuo Yutaka, Iwabuchi Yoshiharu

CHEMICAL COMMUNICATIONS Vol. 59 ( 9 ) page： 1237 - 1240 2023.1

A mechanistic study on enhanced PEDOT:PSS for organic solar cells using semiconducting single-walled carbon nanotubes in different diameters Reviewed

Lin Hao-Sheng, Miyata Daisuke, Yagisawa Mizuki, Huda Miftakhul, Hashimoto Satoru, Hashimoto Takeshi, Matsuo Yutaka

APPLIED PHYSICS EXPRESS Vol. 15 ( 12 ) page： 121001 2022.12

Inkjet Printing of Mechanochromic Fluorenylidene-Acridane Reviewed

Keisuke Ogumi, Kohki Nagata, Yuki Takimoto, Kentaro Mishiba, Yutaka Matsuo

SCIENTIFIC REPORTS Vol. 12 page： 16997 2022.10

Synthesis of neutral Li-endohedral PCBM: an n-dopant for fullerene derivatives Reviewed International coauthorship

Ueno Hiroshi, Kitabatake Daiki, Lin Hao-Sheng, Ma Yue, Jeon Il, Izawa Seiichiro, Hiramoto Masahiro, Misaizu Fuminori, Maruyama Shigeo, Matsuo Yutaka

CHEMICAL COMMUNICATIONS Vol. 58 ( 73 ) page： 10190 - 10193 2022.9

Synthesis of n-type [60]Fullerene Derivatives with Sterically Bulky tert-Butyl Groups for Vacuum Deposition Processes Reviewed International coauthorship

Shibuya Hiromasa, Choi Yeong Suk, Choi Taejin, Yun Sungyoung, Moon Juhee, Matsuo Yutaka

CHEMISTRY-AN ASIAN JOURNAL Vol. 17 page： e202200609 2022.9

Quantitative and high-resolution mechanical pressure sensing functions of mechanochromic fluorenylidene-acridane Reviewed

Ogumi Keisuke, Nagata Kohki, Takimoto Yuki, Mishiba Kentaro, Matsuo Yutaka

JOURNAL OF MATERIALS CHEMISTRY C Vol. 10 ( 31 ) page： 11181 - 11186 2022.8

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