2022/05/26 更新

写真a

ナカニシ カズキ
中西 和樹
NAKANISHI Kazuki
所属
未来材料・システム研究所 材料創製部門 教授
大学院担当
大学院工学研究科
職名
教授

学位 1

  1. 博士(工学) ( 1991年9月   京都大学 ) 

研究キーワード 1

  1. ゾル-ゲル法

研究分野 3

  1. ナノテク・材料 / 無機物質、無機材料化学

  2. ナノテク・材料 / 無機材料、物性

  3. ナノテク・材料 / 無機材料、物性

現在の研究課題とSDGs 1

  1. 低密度多孔物質による超断熱材料の開発

経歴 9

  1. 京都大学   高等研究員物質細胞統合研究拠点(iCeMS)   特定教授

    2019年8月 - 現在

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    国名:日本国

  2. 京都大学   物質―細胞統合システム拠点   特定教授

    2019年8月 - 現在

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    国名:日本国

    備考:クロスアポイントメント

  3. 名古屋大学   未来材料・システム研究所   教授

    2019年1月 - 現在

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    国名:日本国

  4. モンペリエ第二大学   シャルルゲルハール研究所   招聘教授

    2011年9月

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    国名:日本国

  5. 京都大学   大学院理学研究科   准教授

    2005年5月 - 2018年12月

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    国名:日本国

  6. 科学技術振興機構   さきがけ研究研究員

    2000年10月 - 2003年9月

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    国名:日本国

  7. ヨハネス・グーテンベルク大学   無機および分析化学部   特任教授

    2000年9月 - 2000年11月

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    国名:ドイツ連邦共和国

  8. 京都大学   大学院工学研究科   助教授

    1995年7月 - 2005年6月

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    国名:日本国

  9. 京都大学   工学部   助手

    1986年7月 - 1995年6月

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    国名:日本国

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学歴 2

  1. 京都大学   工学部   工業化学科

    1979年4月 - 1983年3月

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    国名: 日本国

  2. 京都大学   工学研究科   工業化学

    1983年4月 - 1985年3月

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    国名: 日本国

所属学協会 6

  1. 日本ゾルゲル学会   会長

    2019年8月 - 現在

  2. 国際ゾルゲル学会   フェロー

    2019年8月 - 現在

  3. 粉体粉末冶金協会   代議員

  4. 日本化学会   会員

  5. 高分子学会   会員

  6. アメリカセラミックス学会

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受賞 8

  1. D.R. Ulrich賞

    1997年8月   ゾルゲル科学と技術に関する顕著な業績

    中西 和樹

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    受賞区分:国際学会・会議・シンポジウム等の賞  受賞国:グレートブリテン・北アイルランド連合王国(英国)

  2. Gottardi賞

    1999年6月   国際ガラス会議(ICG)   ガラス分野における個人の顕著な業績

    中西 和樹

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    受賞区分:国際学会・会議・シンポジウム等の賞  受賞国:チェコ共和国

    毎年1名若手研究者に授賞

  3. 日本セラミックス協会 学術賞

    2006年5月   日本セラミックス協会   相分離を伴うゾル-ゲル法による機能性多孔材料の開発

    中西 和樹

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    受賞区分:国内学会・会議・シンポジウム等の賞  受賞国:日本国

  4. 平成22年度科学技術分野の文部科学大臣表彰 科学技術賞(研究部門)

    2010年4月   文部科学省   シリカモノリスの構造制御とHPLCの高 性能化に関する研究

    田中信男,水口博義,中西和樹

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    受賞国:日本国

  5. 大学発ベンチャー表彰2017 経済産業大臣賞

    2017年8月   科学技術振興機構(JST)   ティエムファクトリ、YKK APとの透明断熱材の開発

    山地正洋、東克起、中西和樹

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    受賞国:日本国

  6. ISGS Fellow

    2019年8月   International Sol-Gel Society  

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    受賞国:アメリカ合衆国

  7. Lifetime Achievement Award

    2021年9月   International Sol-Gel Society   Outstanding contributions to sol-gel science and technology

    Kazuki Nakanishi

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    受賞区分:国際学会・会議・シンポジウム等の賞  受賞国:アメリカ合衆国

    Outstanding contributions to sol-gel science and technology through broad and productive scholarship; by achievements in commercial and industrial applications of sol-gel science and technology; and/or by outstanding service to the sol-gel community that has been sustained over an entire career

  8. ISGS 永年貢献表彰

    2021年9月   国際ゾルーゲル学会  

    中西 和樹

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論文 324

  1. Porous polymer-derived ceramics: Flexible morphological and compositional controls through sol–gel chemistry 査読有り

    Hasegawa G., Kanamori K., Nakanishi K.

    Journal of the American Ceramic Society   105 巻 ( 1 ) 頁: 5 - 34   2022年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of the American Ceramic Society  

    Porous nonoxide ceramics have exhibited impressive progress in terms of synthesis and applications over the past few decades because of their unique characteristics distinguished from the oxide counterparts. From the synthetic aspect, the preceramic polymer route, where nonoxide ceramics such as carbides and nitrides are produced from molecular precursors, offers exceptional opportunities to elaborate and control the material shape as well as the micro- and nanostructures in concert with various techniques. This review presents monolithic ceramic materials based on various reduced phases bearing hierarchical porosity with a focus on those obtained from macroporous preceramic monoliths prepared via the one-pot sol–gel process accompanied by spinodal decomposition. Here, we highlight two classes of preceramic inorganic–organic hybrid gels: organometallic crosslinked polymers based on poly(silsesquioxane)s and nonorganometallic hybrid networks related to Ti without Ti–C bonds. The polymer-to-ceramic conversion processes are discussed with concern for the crystal transition behaviors and the variation of pore properties in different length scales upon heating. In addition, although out of the preceramic polymer category, some examples of inorganic–organic nanocomposite gels with a carbonizable polymer and/or urea for yielding porous metal carbides and nitrides in a monolithic form are introduced as well, which provides extended versatility toward a variety of transition metal systems.

    DOI: 10.1111/jace.18130

    Scopus

  2. Designing hierarchical porosity in tin oxide monoliths and their application as a solid acid catalyst 査読有り

    Suzuki Y., Hasegawa G., Kanamori K., Nakanishi K.

    New Journal of Chemistry   45 巻 ( 37 ) 頁: 17558 - 17565   2021年10月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:New Journal of Chemistry  

    Hierarchically porous tin oxide monoliths have been prepared for the first time from a low-cost tin(iv) chloride precursor through an epoxide-mediated sol-gel process in an aprotic solvent N,N-dimethylformamide. Phase separation is induced in the presence of poly(propylene glycol) in the course of polymerization triggered by an acid scavenger, propylene oxide, leading to macroporous tin-based oxyhydroxide monoliths. The resultant macropores are confirmed to be controlled in the size range of 0.9-2.9 μm. Both the post-gelation solvothermal treatment in 2-propanol and calcination in air gave rise to crystallinity and mesoporosity (2.4-103 nm in size with BET surface area up to 261 m2 g-1), and hierarchically porous tin oxide monoliths have been obtained for the first time. The monoliths are demonstrated as a catalyst for the esterification of valeric acid and methanol. This journal is

    DOI: 10.1039/d1nj03307g

    Scopus

  3. Sol-gel based structural designs of macropores and material shapes of metal-organic framework gels 査読有り

    Hara Y., Manabe K., Nakanishi K., Kanamori K.

    Materials Advances   2 巻 ( 13 ) 頁: 4235 - 4239   2021年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Materials Advances  

    We have developed a general synthetic strategy to control macroporous structures and material shapes of metal-organic framework (MOF) gels via a sol-gel based structural control process. A series of 1,3,5-benzene tricarboxylic acid (BTC) based MOF gels, Cr-BTC and Zr-BTC, have been chosen as a proof of concept.

    DOI: 10.1039/d0ma01009j

    Web of Science

    Scopus

  4. Utility of glomerular Gd-IgA1 staining for indistinguishable cases of IgA nephropathy or Alport syndrome 査読有り

    Ishiko S., Tanaka A., Takeda A., Hara M., Hamano N., Koizumi M., Ueno T., Hayashi H., Kondo A., Nagai S., Aoto Y., Sakakibara N., Nagano C., Horinouchi T., Yamamura T., Ninchoji T., Shima Y., Nakanishi K., Yoshikawa N., Iijima K., Nozu K.

    Clinical and Experimental Nephrology   25 巻 ( 7 ) 頁: 779 - 787   2021年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Clinical and Experimental Nephrology  

    Background: Pathological findings in Alport syndrome frequently show mesangial proliferation and sometimes incidental IgA deposition, in addition to unique glomerular basement membrane (GBM) changes including thin basement membrane and/or lamellation. However, similar GBM abnormalities are also often observed in IgA nephropathy. Both diseases are also known to show hematuria, proteinuria, and sometimes macrohematuria when associated with viral infection. Therefore, it can be difficult to make a differential diagnosis, even based on clinical and pathological findings. Some recent articles demonstrated that galactose-deficient IgA1 (Gd-IgA1)-specific monoclonal antibody (KM55) could potentially enable incidental IgA deposition to be distinguished from IgA nephropathy. Methods: We performed comprehensive gene screening and glomerular Gd-IgA1 and type IV collagen α5 chain immunostaining for five cases with both IgA deposition and GBM changes to confirm that Gd-IgA1 can help to distinguish these two diseases. Results: Four of the cases were genetically diagnosed with Alport syndrome (Cases 1–4) and one was IgA nephropathy with massive GBM changes, which had a negative gene test result (Case 5). In Cases 1–4, glomerular Gd-IgA1 deposition was not detected, although there was positivity for IgA in the mesangial area. In Case 5, glomerular Gd-IgA1 deposition was observed. Conclusion: Gd-IgA1 expression analysis could clearly differentiate these two disorders. This approach can be applied to identify these two diseases showing identical clinical and pathological findings.

    DOI: 10.1007/s10157-021-02054-3

    Scopus

  5. Global wellposedness for the energy-critical Zakharov system below the ground state 査読有り

    Candy T., Herr S., Nakanishi K.

    Advances in Mathematics   384 巻   2021年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Advances in Mathematics  

    The Cauchy problem for the Zakharov system in the energy-critical dimension d=4 is considered. We prove that global well-posedness holds in the full (non-radial) energy space for any initial data with energy and wave mass below the ground state threshold. The result is based on a Strichartz estimate for the Schrödinger equation with a potential. More precisely, a Strichartz estimate is proved to hold uniformly for any potential solving the free wave equation with mass below the ground state constraint. The key new ingredient is a bilinear (adjoint) Fourier restriction estimate for solutions of the inhomogeneous Schrödinger equation with forcing in dual endpoint Strichartz spaces.

    DOI: 10.1016/j.aim.2021.107746

    Scopus

  6. The Correlation between Fluid Distribution and Swelling or Subjective Symptoms of the Trunk in Lymphedema Patients: A Preliminary Observational Study 査読有り

    Hisano F., Niwa S., Nakanishi K., Mawaki A., Murota K., Fukuyama A., Takeno Y., Watanabe S., Fujimoto E., Oshima C.

    Lymphatic Research and Biology   19 巻 ( 3 ) 頁: 269 - 273   2021年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Lymphatic Research and Biology  

    Background: Manual lymph drainage (MLD) is one of the common treatments for breast cancer-related lymphedema (BCRL). Although the primary goal of MLD is to drain the excessive fluid accumulated in the affected upper limb and trunk to an area of the body that drains usually, the use of MLD is decided based on swelling and subjective symptoms, without assessing whether there is fluid accumulated in the affected region. The purpose of this study was to examine truncal fluid distribution in a sample of BCRL patients and investigate any correlation between such fluid distribution and swelling or subjective symptoms. Methods and Results: An observational study was conducted with 13 women who had unilateral, upper extremity BCRL. Fluid distribution was evaluated by using two magnetic resonance imaging (MRI) sequences: half-Fourier acquisition single-shot turbo spin echo and three-dimensional double-echo steady-state. The presence of swelling was determined by lymphedema therapists, and subjective symptoms were measured by using a visual analog scale. On MRI, no participants had any free water signals in the trunk. However, seven had swelling and all 13 had some kind of subjective symptoms on the affected side of their trunk. Conclusions: These results suggest that swelling and subjective symptoms do not correlate with the presence of truncal fluid. For such cases, a different approach than MLD may be needed to address truncal swelling and related subjective symptoms. Checking for the presence of fluid in the truncal region may help MLD be used more appropriately.

    DOI: 10.1089/lrb.2020.0075

    Scopus

  7. Preparation of hierarchically porous spinel CoMn<inf>2</inf>O<inf>4</inf> monoliths via sol–gel process accompanied by phase separation 査読有り

    Lu X., Kanamori K., Hasegawa G., Nakanishi K.

    Journal of the American Ceramic Society   104 巻 ( 6 ) 頁: 2449 - 2459   2021年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of the American Ceramic Society  

    Cobalt manganite-based hierarchically porous monoliths (HPMs) with three-dimensionally (3D) interconnected macropores and open nanopores have been prepared via the sol–gel process accompanied by phase separation. The controlled hydrolysis and polycondensation of the brominated metal alkoxides, which are generated from an incomplete reaction between epichlorohydrin and MBr2 (M = Co and Mn) in N,N-dimethylformamide (DMF), form a monolithic gel based on the two divalent metal cations. The dual-polymer strategy using polyvinylpyrrolidone (PVP) and poly(ethylene oxide) (PEO) effectively induces the spinodal decomposition, where PVP and PEO are preferentially distributed to the gel phase and fluid phase, respectively, resulting in a porous gel characterized by the co-continuous structure. The effects of DMF and PVP on the porous morphology derived from the phase separation have been systematically studied. Calcination of the as-dried gels allows for the crystallization into the spinel phase yielding hierarchically porous CoMn2O4 monoliths, which have been examined in detail by the structural and compositional analyses.

    DOI: 10.1111/jace.17662

    Scopus

  8. Highly porous melamine-formaldehyde monoliths with controlled hierarchical porosity toward application as a metal scavenger 査読有り

    Nakanishi Y., Hara Y., Miyamoto R., Nakanishi K., Kanamori K.

    Materials Advances   2 巻 ( 8 ) 頁: 2604 - 2608   2021年4月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Materials Advances  

    We report a new synthetic strategy for melamine-formaldehyde (MF) monoliths with controlled hierarchical porosity toward metal-ion scavengers. The obtained MF monoliths possessed micro-, meso- and macroporosity, which allowed efficient adsorption performance of precious metal ions in water. Applications such as recovery/removal of metal ions are expected.

    DOI: 10.1039/d1ma00034a

    Web of Science

    Scopus

  9. Tunable and Well-Defined Bimodal Porous Model Electrodes for Revealing Multiscale Structural Effects in the Nonaqueous Li-O<inf>2</inf>Electrode Process 査読有り

    Hara Y., Ono M., Matsuda S., Nakanishi K., Kanamori K., Sakaushi K.

    Journal of Physical Chemistry C   125 巻 ( 2 ) 頁: 1403 - 1413   2021年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Physical Chemistry C  

    Porous architecture is key in the nonaqueous lithium-oxygen (Li-O2) electrode process, which is attracting huge interest because of its application in reversible energy storage with high theoretical energy density. However, it is still challenging to understand the optimal porous structure to obtain high reversibility of the reaction. One main reason is because of instability and undefined porous structures of standard electrodes consisting of carbonaceous materials, and this issue hinders from unveiling the fundamental mechanism in the complicated electrode process. Here, we developed a new synthetic strategy to design monolithic electrodes of pure metallic nickel with controlled bimodal porous structures. The present work aims to investigate the fundamental effects of the bimodal macroporous structure in the Li-O2 electrode process under carbon-/binder-free stable model electrodes. As the result, we found that, depending on the multiscale structural configurations, the bimodal macroporous structure gave significant influences to key properties, such as the efficiency of redox-mediators, discharge overpotential, and cycling life. This work indicates that the rational design of stable and conductive porous materials is one of the promising approaches to investigate highly complicated electrochemical reactions in porous electrodes and suggest new guidelines for further development of hierarchically structured electrodes toward advanced electrochemical systems.

    DOI: 10.1021/acs.jpcc.0c10446

    Scopus

  10. Hierarchically porous monoliths based on low-valence transition metal (Cu, Co, Mn) oxides: gelation and phase separation 査読有り

    Lu Xuanming, Kanamori Kazuyoshi, Nakanishi Kazuki

    NATIONAL SCIENCE REVIEW   7 巻 ( 11 ) 頁: 1656 - 1666   2020年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:National Science Review  

    Hierarchically porous monoliths based on copper (Cu), cobalt (Co) and manganese (Mn) oxides with three-dimensionally (3D) interconnected macropores and open nanopores were prepared using metal bromides as precursors via a sol-gel process accompanied by phase separation. The difficulty of gelation for low-valence metal cation was overcome by introducing a highly electronegative Br atom near to the metal atom to control the rates of hydrolysis and polycondensation. The 3D interconnected macropores were obtained using appropriate polymers to induce phase separation. The domain sizes of macropores and skeletons can be controlled by reaction parameters such as concentration and/or average molecular weight of polymers, and the amount of hydrochloric acid. The crystalline metal oxide monoliths with their 3D interconnected macroporous structure preserved were obtained after heat treatment in air.

    DOI: 10.1093/nsr/nwaa103

    Web of Science

    Scopus

    PubMed

  11. Hierarchically porous monoliths prepared via sol–gel process accompanied by spinodal decomposition 査読有り

    Lu X., Hasegawa G., Kanamori K., Nakanishi K.

    Journal of Sol-Gel Science and Technology   95 巻 ( 3 ) 頁: 530 - 550   2020年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Sol-Gel Science and Technology  

    Hierarchically porous materials with large pores in the micrometer range and small pores in the nanometer range, where the large pores facilitate mass transport and the small pores supply numerous active sites, show superiority to materials with unimodal pores in the fields of separation and adsorption. Among all the methods used to prepare hierarchically porous monoliths (HPMs), the sol–gel process accompanied by spinodal decomposition (or phase separation) shows its advantages such as facile method, no template, precise structural control, good reproducibility, and availability for various kinds of materials. This review focuses on the specific process to prepare various types of HPMs including silica, metal oxides, metal phosphates, and metal–organic hybrids, via the sol–gel process accompanied by spinodal decomposition. The HPMs composed of organic polymer and their carbonized derivatives prepared by polymerization-induced phase separation are also covered in this review as an example of similar morphological formation in purely organic crosslinking reactions. This review directs the most attention to the preparation of monolithic gels (sol–gel process) and the control of macroporous structure (phase separation). [Figure not available: see fulltext.].

    DOI: 10.1007/s10971-020-05370-4

    Scopus

  12. Variation of meso- and macroporous morphologies in resorcinol-formaldehyde (RF) gels tailored via a sol-gel process combined with soft-templating and phase separation 査読有り

    Hasegawa George, Yano Takaya, Akamatsu Hirofumi, Hayashi Katsuro, Nakanishi Kazuki

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   95 巻 ( 3 ) 頁: 801 - 812   2020年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Sol-Gel Science and Technology  

    A wide-range control over multimodal pore systems in porous monoliths is a key technology for developing functional materials, as the favorable pore structures in different length scales are required to be tailored depending on their application fields. In the alkoxy-derived sol–gel systems of silica and organosilicates, the synthetic methodology of meso- and macroporous monoliths with tunable pore properties has been developed by combining the supramolecular self-assembly of a Pluronic surfactant and polymerization-induced phase-separation techniques. This strategy has been applied to the sol–gel process of phenolic resins, giving rise to the hierarchically porous polymer gels with ordered mesoporosity and the corresponding carbon monoliths after carbonization. However, the controllable size range has been limited so far. This study has explored the relationship between the starting composition and the bimodal pore properties in further detail aiming at a better control of pore properties in phenolic resins. The enlargement of mesopore size has been achieved, yet associated with broadening the mesopore size distribution and coarsening the macropore morphology, resulting in the particle aggregates. The systematical investigation also reveals that the addition of KCl can improve the micelle arrangement in macroframework and provide the narrower mesopore size distribution. [Figure not available: see fulltext.]

    DOI: 10.1007/s10971-020-05236-9

    Web of Science

    Scopus

  13. On-site formation of small Ag nanoparticles on superhydrophobic mesoporous silica for antibacterial application 査読有り

    Yang Z., Wu C., Kanamori K., Kamei T., Shimada T., Nakanishi K.

    New Journal of Chemistry   44 巻 ( 32 ) 頁: 13553 - 13556   2020年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:New Journal of Chemistry  

    A superhydrophobic mesoporous silica material loaded with on-site formed small Ag nanoparticles has been prepared via surface modification with octadecylsilane (C18H37SiH3) and subsequent reduction of silver acetate with residual hydrido groups on-site. The resultant material shows excellent antibacterial activity for Gram-negative E. coli and Gram-positive S. aureus. This journal is

    DOI: 10.1039/d0nj02502j

    Web of Science

    Scopus

  14. Superhydrophobic highly flexible doubly cross-linked aerogel/carbon nanotube composites as strain/pressure sensors 査読有り

    Zu G., Wang X., Kanamori K., Nakanishi K.

    Journal of Materials Chemistry B   8 巻 ( 22 ) 頁: 4883 - 4889   2020年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Materials Chemistry B  

    We report novel superhydrophobic highly flexible composites based on a doubly cross-linked (DCL) aerogel and carbon nanotubes (CNTs) for strain/pressure sensing. The DCL aerogel/CNT composite is prepared by radical polymerization of vinylmethyldimethoxysilane and vinyldimethylmethoxysilane, respectively, followed by hydrolytic co-polycondensation of the obtained polyvinylmethyldimethoxysilane and polyvinyldimethylmethoxysilane, combined with the incorporation of CNTs. Benefiting from the flexible methyl-rich DCL structure of the aerogel and conductive CNTs, the resultant DCL aerogel/CNT composite combines superhydrophobicity, high compressibility, high bendability, high elasticity, and strain- and pressure-sensitive conductivity. We demonstrate that the composite can be applied as a high-performance strain/pressure sensor for the detection of arterial pulse waves and joint bending with high sensitivity and high durability against humidity.

    DOI: 10.1039/c9tb02953b

    Scopus

    PubMed

  15. Superelastic Triple-Network Polyorganosiloxane-Based Aerogels as Transparent Thermal Superinsulators and Efficient Separators 査読有り

    Zu G., Kanamori K., Wang X., Nakanishi K., Shen J.

    Chemistry of Materials   32 巻 ( 4 ) 頁: 1595 - 1604   2020年2月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemistry of Materials  

    We report new polyorganosiloxane aerogels with superhydrophobicity, high elasticity, and high bendability based on polyvinyl-poly(dimethylsiloxane) (PVPDMS)/polymethylsilsesquioxane (PMSQ). They are synthesized by a radical polymerization/co-polycondensation strategy that involves radical polymerization of vinyldimethylmethoxysilane to obtain chainlike polyvinyldimethylmethoxysilane (PVDMMS) polymers followed by hydrolytic co-polycondensation of PVDMMS polymers and methyltrimethoxysilane combined with ambient pressure drying without any post-gelation modifications. The resultant PVPDMS/PMSQ aerogels exhibit a highly tunable triple-network structure consisting of flexible inter-cross-linked hydrocarbon polymers, poly(dimethylsiloxane), and PMSQ. The aerogels with a low content of PVPDMS exhibit small pore sizes (2-80 nm), good transparency, high surface areas, and thermal superinsulation (λ = 0.0148 W m-1 K-1), while those with a high content of PVPDMS exhibit large pore sizes (100 nm-3 μm) and excellent selective absorption for organic liquids. In addition, incorporation of graphene oxide (GO) in PVPDMS/PMSQ aerogels can afford highly flexible PVPDMS/PMSQ/GO composite aerogels, which show efficient separation of three-component water/oil/dye mixtures. These aerogels are promising in the practical applications of thermal insulation, absorption/adsorption, and separation.

    DOI: 10.1021/acs.chemmater.9b04877

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  16. Colorless Transparent Melamine-Formaldehyde Aerogels for Thermal Insulation 査読有り

    Nakanishi Y., Hara Y., Sakuma W., Saito T., Nakanishi K., Kanamori K.

    ACS Applied Nano Materials   3 巻 ( 1 ) 頁: 49 - 54   2020年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ACS Applied Nano Materials  

    Aerogels have many unique properties such as low density and low thermal conductivity, and, in particular, transparent silica aerogels are attractive for thermal insulating windows. Practical applications of silica aerogels, however, have been limited because of their low mechanical strength, and it is still challenging to synthesize transparent and mechanically strong aerogels. Here, we report colorless transparent melamine-formaldehyde (MF) aerogels prepared via a nonaqueous synthetic strategy. The obtained transparent MF aerogel with a density of 0.18 g cm-3 shows significantly higher mechanical strength and a lower thermal conductivity of ca. 13 mW m-1 K-1 compared to conventional silica aerogels with similar density.

    DOI: 10.1021/acsanm.9b02275

    Web of Science

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  17. Self-Assembly of Metal–Organic Frameworks into Monolithic Materials with Highly Controlled Trimodal Pore Structures 査読有り

    Hara Y., Kanamori K., Nakanishi K.

    Angewandte Chemie - International Edition   58 巻 ( 52 ) 頁: 19047 - 19053   2019年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Angewandte Chemie - International Edition  

    We present a two-step template-free approach toward monolithic materials with controlled trimodal porous structures with macro-, meso-, and micropores. Our method relies on two ordering processes in discrete length scales: 1) Spontaneous formation of macroporous structures in monolithic materials by the sol–gel process through the short-range ordered self-assembly of metal–organic frameworks (MOFs), and 2) reorganization of the framework structures in a mediator solution. The Zr-terephthalate-based MOF (UiO-66-NH2) was adopted as a proof of concept. The self-assembly-induced phase separation process offered interconnected macropores with diameters ranging from 0.9 to 1.8 μm. The subsequent reorganization process converted the microporous structure from low crystalline framework to crystalline UiO-66. The resultant mesopore size within the skeletons was controlled in the range from 9 to 21 nm. This approach provides a novel way of designing spaces from nano- to micrometer scale in network-forming materials.

    DOI: 10.1002/anie.201911499

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    PubMed

  18. Self‐Assembly of Metal–Organic Frameworks into Monolithic Materials with Highly Controlled Trimodal Pore Structures 査読有り

    Yosuke Hara, Kazuyoshi Kanamori, Kazuki Nakanishi

    Angewandte Chemie   131 巻 ( 52 ) 頁: 19223 - 19229   2019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  

    DOI: 10.1002/ange.201911499

  19. Resilient, fire-retardant and mechanically strong polyimide-polyvinylpolymethylsiloxane composite aerogel prepared via stepwise chemical liquid deposition 査読有り

    Zhang Z., Wang X., Zu G., Kanamori K., Nakanishi K., Shen J.

    Materials and Design   183 巻   2019年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Materials and Design  

    Resilient, fire-retardant and mechanically strong polyimide-polyvinylpolymethylsiloxane (PI-PVPMS) composite aerogels have been prepared via stepwise chemical liquid deposition (SCLD). The synthesis is based on the formation of PI-PVPMS crosslinked network structure with (3-aminopropyl)trimethoxysilane (APTMS) as a coupling agent to provide reactive sites on the backbone. We successfully realize the PI in-situ growth on the whole super-flexible PVPMS gel skeleton with this simple method. The effect of APTMS amount and deposition time on the properties of final samples is deeply investigated. The resultant PI-PVPMS composite aerogels show excellent mechanical and thermal properties. They can support at least 10,000 times of their own weight and can recover 20% from a 60% of compressive strain, with an elastic modulus of 32 MPa. For thermal performance, they can maintain their structural integrity after being subjected to the alcohol lamp outer flame of around 650 °C for 30 min. These results together with the simple synthesis process demonstrate the potential for construction materials using PI-PVPMS composite aerogels. Furthermore, the SCLD synthesis method could also be applied to prepare other composite aerogels, especially for those containing complex polymer.

    DOI: 10.1016/j.matdes.2019.108096

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  20. Superelastic Multifunctional Aminosilane-Crosslinked Graphene Aerogels for High Thermal Insulation, Three-Component Separation, and Strain/Pressure-Sensing Arrays 査読有り

    Zu G., Kanamori K., Nakanishi K., Lu X., Yu K., Huang J., Sugimura H.

    ACS Applied Materials and Interfaces   11 巻 ( 46 ) 頁: 43533 - 43542   2019年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ACS Applied Materials and Interfaces  

    Aerogels have attracted great interest for their unique properties, but their mechanical brittleness and poor functionality highly limit their practical applications. Herein, we report unprecedented superelastic multifunctional aminosilane-crosslinked reduced graphene oxide (AC-rGO) aerogels that are prepared via a facile and scalable strategy involving simultaneous crosslinking and reducing of graphene oxide nanosheets with different kinds of aminosilanes via C-N coupling and hydrolytic polycondensation reactions. It is found that 3-aminopropyl(diethoxy)methylsilane (APDEMS) is the better choice to enhance hydrophobicity, elasticity, and other properties of the resulting aerogels compared with (3-aminopropyl)triethoxysilane. One APDEMS molecule plays three roles as a crosslinker, a reductant, and a hydrophobizing agent. An outstanding combination of high surface area, ultralow density, superhydrophobicity, supercompressibility, superelasticity, low thermal conductivity, ultrahigh absorption capacity for organic liquids, efficient three-component separation, and strain/pressure sensing has been achieved in a single APDEMS-crosslinked rGO aerogel for the first time. In addition, a flexible, highly sensitive, and moisture-resistant AC-rGO aerogel-based strain/pressure-sensing array for the effective detection of strain (0-80%)/pressure (10 Pa to 10 kPa) distributions and object shapes has been demonstrated.

    DOI: 10.1021/acsami.9b16746

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  21. Thermogravimetric Evolved Gas Analysis and Microscopic Elemental Mapping of the Solid Electrolyte Interphase on Silicon Incorporated in Free-Standing Porous Carbon Electrodes 査読有り

    Hasegawa G., Kanamori K., Nakanishi K., Hayashi K.

    Langmuir   35 巻 ( 39 ) 頁: 12680 - 12688   2019年10月

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

    Free-standing electrodes, which are free from additives (binders and conductive agents) and even current collectors, are useful in terms of both application research and fundamental study. Here, we demonstrate the preparation of binder-free monolithic carbon electrodes embracing Si nanoparticles in their well-defined porous scaffolds via the one-pot sol-gel reaction followed by carbonization. The free-standing electrodes with a thickness of 150 μm work out as a high-areal-density anode for Li-ion batteries, delivering up to ca. 7 mA h cm-2. As the Si content increases, the capacity decay on cycling becomes pronounced, which is likely to associate with the fracturing and pulverization of Si nanoparticles even with the size smaller than 100 nm after long-term cycles. The thermogravimetry-mass spectrometry profile of the cycled electrode corroborates the successive electrolyte decomposition to grow solid electrolyte interphase (SEI) mainly composed of lithium alkylcarbonates, polymeric species, and LiF, rendering the electrode mass nearly double of its original state after 200 cycles. The elemental mapping analysis reveals that LiF is generated inhomogeneously in the monolithic electrodes unlike the other SEI components, resulting in the concentration gradient depending on the distance from a Li counter electrode.

    DOI: 10.1021/acs.langmuir.9b02085

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  22. Thermogravimetric evolved gas analysis and microscopic elemental mapping of the solid electrolyte interphase on silicon incorporated in free-standing porous carbon electrodes 査読有り

    George Hasegawa, Kazuyoshi Kanamori, Kazuki Nakanishi, Katsuro Hayashi

    Langmuir     2019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)  

  23. Ambient-dried highly flexible copolymer aerogels and their nanocomposites with polypyrrole for thermal insulation, separation, and pressure sensing 査読有り

    Zu G., Kanamori K., Maeno A., Kaji H., Nakanishi K., Shen J.

    Polymer Chemistry   10 巻 ( 36 ) 頁: 4980 - 4990   2019年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Polymer Chemistry  

    Aerogels exhibit unique properties, but their practical applications have been restricted by low mechanical strength and costly supercritical drying; it remains difficult to obtain highly flexible aerogels with good thermal insulation and absorption by ambient pressure drying (APD). Here, we report novel highly flexible aerogels based on the polyvinylpolymethylsiloxane (PVPMS)/polyvinyltrimethylsilane (PVTMS) co-network, which consists of inter-cross-linked hydrocarbon and siloxane polymers with dangling trimethylsilyl groups, and its nanocomposite with polypyrrole (PPy). The PVPMS/PVTMS copolymer aerogels are facilely synthesized by a consecutive radical co-polymerization and hydrolytic polycondensation strategy from two monomers vinylmethyldimethoxysilane and trimethylvinylsilane without additional cross-linkers, followed by APD without any post-gelation modification. The PPy nanocomposite aerogels are synthesized by an in situ oxidation polymerization of pyrrole in the copolymer aerogel networks, followed by APD. The resulting aerogels consist of meso-to macro-scaled pore structures with tunable skeleton and pore sizes with variable cross-linking density and bulk density. In addition, these aerogels show good hydrophobicity and high flexibility in both compression and bending. Moreover, different functionalities such as excellent thermal insulation, oil-water separation, and pressure sensing can be imparted, allowing them to exhibit potential applications in thermal insulation, separation, and sensing.

    DOI: 10.1039/c9py00751b

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  24. Superhydrophobic Ultraflexible Triple-Network Graphene/Polyorganosiloxane Aerogels for a High-Performance Multifunctional Temperature/Strain/Pressure Sensing Array 査読有り

    Zu G., Kanamori K., Nakanishi K., Huang J.

    Chemistry of Materials   31 巻 ( 16 ) 頁: 6276 - 6285   2019年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemistry of Materials  

    Recently, many efforts have been made to develop various smart sensors. However, achieving flexible multifunctional sensors combining excellent sensing of temperature, strain, and pressure with a single material is still challenging. Here, we report unprecedented superhydrophobic ultraflexible reduced graphene oxide (rGO)/polyorganosiloxane aerogels and high-performance multifunctional temperature/strain/pressure sensors based on these aerogels. GO nanosheets are first cross-linked and reduced with (3-aminopropyl)triethoxysilane (APTES) to obtain APTES-modified rGO aerogels, which are then further covalently cross-linked with polyvinylmethyldimethoxysilane polymers and vinylmethyldimethoxysilane via copolycondensation to afford rGO/polyorganosiloxane aerogels. The resulting aerogels exhibit a coralline-like triple-network nanostructure consisting of rGO nanosheets, polyvinyl-poly(methylsiloxane), and poly(vinylmethylsiloxane) that are cross-linked with each other. The aerogels combine superhydrophobicity, high compressibility, high bendability, superelasticity, excellent machinability, and temperature-, strain-, and pressure-sensitive conductivity, which is a combination not observed with traditional materials. In addition, an rGO/polyorganosiloxane aerogel-based flexible multifunctional sensing array combining sensing of temperature (20-100 °C), strain (in the wide range of 0.1-80%), and pressure (in the wide range of 10 Pa to 110 kPa) with high sensitivity and high durability against compression, bending, and humidity has been demonstrated for the first time.

    DOI: 10.1021/acs.chemmater.9b02437

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  25. Preparation of zinc oxide with a three-dimensionally interconnected macroporous structure via a sol-gel method accompanied by phase separation 査読有り

    Lu Xuanming, Kanamori Kazuyoshi, Nakanishi Kazuki

    NEW JOURNAL OF CHEMISTRY   43 巻 ( 29 ) 頁: 11720 - 11726   2019年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:New Journal of Chemistry  

    A facile method for the preparation of zinc oxide with three-dimensionally (3D) interconnected macropores has been developed. The Zn-based monolithic gel was obtained using citric acid (CA) as a structure supporter via an epoxide-mediated sol-gel method accompanied by phase separation. The size of the macropores could be controlled by the ratio of methanol to propylene oxide in the starting solution. The Zn-based gel was heat-treated in air with the purpose of removing the organic components and crystallizing the ZnO, finally resulting in pure ZnO (purity >90%, with negligible carbon content) with 3D interconnected macropores and an open nanoscale network. The influence of the starting solvent composition on the Zn-based gel morphologies has been examined and discussed based on the chemical compatibility of the Zn-CA complex with other components.

    DOI: 10.1039/c9nj02373a

    Web of Science

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  26. Macroporous Niobium Phosphate-Supported Magnesia Catalysts for Isomerization of Glucose-to-Fructose 査読有り

    Gao D.M., Shen Y.B., Zhao B., Liu Q., Nakanishi K., Chen J., Kanamori K., Wu H., He Z., Zeng M., Liu H.

    ACS Sustainable Chemistry and Engineering   7 巻 ( 9 ) 頁: 8512 - 8521   2019年5月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ACS Sustainable Chemistry and Engineering  

    The catalytic performance of hierarchically porous niobium phosphate (NbP) supported magnesia for the glucose isomerization to fructose, was investigated under atmospheric air atmosphere. Porous NbP showed improved support effects on MgO in comparison to other metal oxides tested for glucose isomerization. Also, the amount and distribution of basic sites were largely changed by supporting magnesia on NbP. Although the textural properties were reduced and solid acids formed on the MgO/NbP catalysts, glucose isomerization was promoted by increasing magnesium content. The maximum yield of fructose reached ∼24.6% over 40%MgO/NbP-500 with selectivity of 65.7% for 1.0 wt % glucose at 120 °C. The fructose productivity peaked as high as 13.6 g g catalyst-1 h -1 over 40%MgO/NbP-700 catalyst. The leaching of cations and anions resulted in a homogeneous system for glucose isomerization. Regeneration almost fully reactivated the catalyst to its initial activity. The MgO/NbP showed high stability under air atmosphere for 15 days, and high potential use for glucose isomerization.

    DOI: 10.1021/acssuschemeng.9b00292

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  27. Preparation of surface-coated macroporous silica (core-shell silica monolith) for HPLC separations: Graphical Abstract 査読有り

    Ito Risako, Morisato Kei, Kanamori Kazuyoshi, Nakanishi Kazuki

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   90 巻 ( 1 ) 頁: 105 - 112   2019年4月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Sol-Gel Science and Technology  

    Abstract: Utilizing the spontaneous wetting of oligomeric silica-phase via phase-separation onto a solid surface in a confined dimension, sub-micrometer thick mesoporous layers have been coated on the surface of nonporous skeletons of preformed macroporous silica gels. The size and volume of mesopores within the layers could be controlled by subsequent aging conditions similarly to those reported for fully porous monolithic silica. Comparison of HPLC efficiencies of these novel type monolithic gels, core-shell silica monoliths, with those of a conventional silica monolith revealed that the retention factor per unit surface area became larger for core-shell silica monoliths. The increase in dynamic accessibility of analyte molecules to the mesopores well explain the improved retention factors in core-shell silica monoliths. [Figure not available: see fulltext.]

    DOI: 10.1007/s10971-018-4889-2

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  28. Hybrid silicone aerogels toward unusual flexibility, functionality, and extended applications 査読有り

    Kanamori Kazuyoshi, Ueoka Ryota, Kakegawa Takayuki, Shimizu Taiyo, Nakanishi Kazuki

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   89 巻 ( 1 ) 頁: 166 - 175   2019年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Sol-Gel Science and Technology  

    Abstract: Here, we overview the developments in the past decade made on organic–inorganic hybrid aerogels and xerogels based on silicone (polyorganosiloxanes) through persistent works by the authors to increase the mechanical strength and flexibility and add functionality. Polymethylsilsesquioxane (PMSQ, CH3SiO3/2) has been found to show unusual strength and flexibility against compression, and their bending properties can also be improved by several strategies. Silicone-based networks with organic bridges between inorganic moieties are also beneficial for these improvements. In particular, organic bridges with a higher fraction and more extended length have been found to allow higher durability against large deformations. In addition, functional groups such as vinyl, chloromethyl, and amino can readily be introduced by starting from organoalkoxysilanes with these functional substituents (e.g., FG−Si(OR)3 or (RO)3Si−FG−Si(OR)3, where FG shows an organic substituent containing functional groups and R is typically methyl or ethyl), and other functional groups such as carboxyl can be introduced by post-gelation modifications on the pre-installed FG in the network. Possibilities in applications such as thermal insulators, photoluminescent media, and photocatalysts are also discussed. [Figure not available: see fulltext.].

    DOI: 10.1007/s10971-018-4804-x

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  29. Synthesis of hierarchically porous MgO monoliths with continuous structure via sol-gel process accompanied by phase separation 査読有り

    Lu Xuanming, Kanamori Kazuyoshi, Nakanishi Kazuki

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   89 巻 ( 1 ) 頁: 29 - 36   2019年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Sol-Gel Science and Technology  

    Hierarchically porous magnesium oxide, MgO, monoliths with a well-defined continuous macroporous structure have been synthesized via the sol–gel route accompanied by phase separation. Magnesium chloride hexahydrate was used as a precursor, and propylene oxide was used as an acid scavenger to raise the pH of a reaction solution homogenously. In order to obtain a crack-free monolith after heating in air, poly(vinylpyrrolidone), PVP, was employed as a scaffold of the skeleton as well as a phase separation controller to form the continuous macropores with higher homogeneity. Due to the moderate hydrogen-bonding interaction with magnesium hydroxide, PVP reinforces the gel network essentially composed of fine grained magnesium hydroxide. Even after the removal of all organic components by calcination, the porous gel samples maintained their monolithic form. On the other hand, an additional incorporation of 1,3,5-benzenetricarboxylic acid, H3BTC, was found to be effective in suppressing the oriented growth of the micrometer-sized crystalline phase. The polycrystalline MgO monoliths with specific surface area of 185, 64, and 48 m2 g−1 were prepared after heating at 400, 500, and 600 °C in air, respectively. [Figure not available: see fulltext.].

    DOI: 10.1007/s10971-018-4682-2

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  30. Uric acid enhances alteplase-mediated thrombolysis as an antioxidant. 査読有り

    Kikuchi K, Setoyama K, Tanaka E, Otsuka S, Terashi T, Nakanishi K, Takada S, Sakakima H, Ampawong S, Kawahara KI, Nagasato T, Hosokawa K, Harada Y, Yamamoto M, Kamikokuryo C, Kiyama R, Morioka M, Ito T, Maruyama I, Tancharoen S

    Scientific reports   8 巻 ( 1 ) 頁: 15844   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)  

    DOI: 10.1038/s41598-018-34220-1

    PubMed

  31. Sol-gel preparation of hierarchically porous magnesium aluminate (MgAl2O4) spinel monoliths for dye adsorption 査読有り

    Guo Xingzhong, Yin Pengan, Kanamori Kazuyoshi, Nakanishi Kazuki, Yang Hui

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   88 巻 ( 1 ) 頁: 114 - 128   2018年10月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Sol-Gel Science and Technology  

    Abstract: Hierarchically porous spinel-type binary metal oxide MgAl2O4 with cocontinuous skeletons and interconnected macropores has been synthesized by a facile sol–gel method accompanied by phase separation, in which poly (ethylene oxide) (PEO) works as phase separation inducer to form micrometer-scale phase-separated macrochannels at the same time of sol–gel transition. The obtained xerogels exhibit in the form of a monolith with well-defined macropores and cocontinuous dense skeletons by adjusting the amount of PEO. The xerogel and those heat-treated at or below 600 °C are amorphous, and heat-treatment at or above 700 °C allows the precipitation of complete crystalline MgAl2O4 spinel with a macropore size of 0.7–0.9 μm, a porosity of 60–70%, and a BET surface area of 40–80 m2 g−1, without spoiling the macrostructure of monoliths. Three anionic dyes and two cationic dyes are selected as targeted adsorbates to investigate the selective adsorption ability of a hierarchically porous MgAl2O4 spinel. The resultant MgAl2O4 spinel shows a high affinity and adsorption rate toward anionic dyes Congo Red, Methyl Orange, and Methyl Blue. The maximum adsorption capacity of MgAl2O4 spinel toward these three anionic dyes are 2721.6 mg g−1 for Congo Red, 2469.7 mg g−1 for Methyl Orange, and 6771.9 mg g−1 for Methyl Blue, respectively. [Figure not available: see fulltext.]

    DOI: 10.1007/s10971-018-4781-0

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  32. The gravitationally unstable gas disk of a starburst galaxy 12 billion years ago 査読有り

    Tadaki K., Iono D., Yun M.S., Aretxaga I., Hatsukade B., Hughes D.H., Ikarashi S., Izumi T., Kawabe R., Kohno K., Lee M., Matsuda Y., Nakanishi K., Saito T., Tamura Y., Ueda J., Umehata H., Wilson G.W., Michiyama T., Ando M., Kamieneski P.

    Nature   560 巻 ( 7720 ) 頁: 613 - 616   2018年8月

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

    Galaxies in the early Universe that are bright at submillimetre wavelengths (submillimetre-bright galaxies) are forming stars at a rate roughly 1,000 times higher than the Milky Way. A large fraction of the new stars form in the central kiloparsec of the galaxy1–3, a region that is comparable in size to the massive, quiescent galaxies found at the peak of cosmic star-formation history4 and the cores of present-day giant elliptical galaxies. The physical and kinematic properties inside these compact starburst cores are poorly understood because probing them at relevant spatial scales requires extremely high angular resolution. Here we report observations with a linear resolution of 550 parsecs of gas and dust in an unlensed, submillimetre-bright galaxy at a redshift of z = 4.3, when the Universe was less than two billion years old. We resolve the spatial and kinematic structure of the molecular gas inside the heavily dust-obscured core and show that the underlying gas disk is clumpy and rotationally supported (that is, its rotation velocity is larger than the velocity dispersion). Our analysis of the molecular gas mass per unit area suggests that the starburst disk is gravitationally unstable, which implies that the self-gravity of the gas is stronger than the differential rotation of the disk and the internal pressure due to stellar-radiation feedback. As a result of the gravitational instability in the disk, the molecular gas would be consumed by star formation on a timescale of 100 million years, which is comparable to gas depletion times in merging starburst galaxies5.

    DOI: 10.1038/s41586-018-0443-1

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  33. On-line Redox Derivatization Liquid Chromatography Using a Carbon Monolithic Column 査読有り

    Miyashita Ken, Tanaka Ryo, Hasegawa George, Nakanishi Kazuki, Morioka Kazuhiro, Zeng Hulie, Kato Shungo, Uchiyama Katsumi, Saitoh Kazunori, Shibukawa Masami, Nakajima Hizuru

    BUNSEKI KAGAKU   67 巻 ( 8 ) 頁: 469 - 478   2018年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  34. Superflexible Multifunctional Polyvinylpolydimethylsiloxane-Based Aerogels as Efficient Absorbents, Thermal Superinsulators, and Strain Sensors 査読有り

    Zu G., Kanamori K., Maeno A., Kaji H., Nakanishi K.

    Angewandte Chemie - International Edition   57 巻 ( 31 ) 頁: 9722 - 9727   2018年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Angewandte Chemie - International Edition  

    Aerogels are porous materials but show poor mechanical properties and limited functionality, which significantly restrict their practical applications. Preparation of highly bendable and processable aerogels with multifunctionality remains a challenge. Herein we report unprecedented superflexible aerogels based on polyvinylpolydimethylsiloxane (PVPDMS) networks, PVPDMS/polyvinylpolymethylsiloxane (PVPMS) copolymer networks, and PVPDMS/PVPMS/graphene nanocomposites by a facile radical polymerization/hydrolytic polycondensation strategy and ambient pressure drying or freeze drying. The aerogels have a doubly cross-linked organic–inorganic network structure consisting of flexible polydimethylsiloxanes and hydrocarbon chains with tunable cross-linking density, tunable pore size and bulk density. They have a high hydrophobicity and superflexibility and combine selective absorption, efficient separation of oil and water, thermal superinsulation, and strain sensing.

    DOI: 10.1002/anie.201804559

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  35. Superflexible Multifunctional Polyvinylpolydimethylsiloxane-Based Aerogels as Efficient Absorbents, Thermal Superinsulators, and Strain Sensors 査読有り

    Guoqing Zu, Kazuyoshi Kanamori, Ayaka Maeno, Hironori Kaji, Kazuki Nakanishi

    Angewandte Chemie   130 巻 ( 31 ) 頁: 9870 - 9875   2018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:Wiley  

    DOI: 10.1002/ange.201804559

  36. Comprehensive studies on phosphoric acid treatment of porous titania toward titanium phosphate and pyrophosphate monoliths with pore hierarchy and a nanostructured pore surface 査読有り

    Zhu Y., Hasegawa G., Kanamori K., Nakanishi K.

    Inorganic Chemistry Frontiers   5 巻 ( 6 ) 頁: 1397 - 1404   2018年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Inorganic Chemistry Frontiers  

    Simple post-treatments of the porous titania monolith in varied concentrations of phosphoric acid solution provide a series of monolithic titanium phosphates (TiPs) with a hierarchically porous structure together with an exquisite macropore surface. Depending on the reaction conditions, platy crystallites composed of either Ti2O3(H2PO4)2·2H2O, Ti(HPO4)2·H2O (α-TiP), or Ti2O(PO4)2·2H2O (π-TiP) are generated on the macropore skeleton via a dissolution and reprecipitation process, which forms distinct wrinkled surface morphologies. In addition, the treatments effectively suppress the shrinkage during drying, leading to lower bulk density. Post-calcination in air yields porous titanium pyrophosphates preserving the intricate porous architecture in some cases. Notably, the hierarchically porous TiP2O7 monoliths prepared from the α-TiP precursors have a good thermal robustness related to bulk density.

    DOI: 10.1039/c8qi00146d

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  37. Versatile Double-Cross-Linking Approach to Transparent, Machinable, Supercompressible, Highly Bendable Aerogel Thermal Superinsulators 査読有り

    Zu G., Kanamori K., Shimizu T., Zhu Y., Maeno A., Kaji H., Nakanishi K., Shen J.

    Chemistry of Materials   30 巻 ( 8 ) 頁: 2759 - 2770   2018年4月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemistry of Materials  

    A facile yet versatile approach to transparent, highly flexible, machinable, superinsulating organic-inorganic hybrid aerogels is presented. This method involves radical polymerization of a single alkenylalkoxysilane to obtain polyalkenylalkoxysilane, and subsequent hydrolytic polycondensation to afford a homogeneous, doubly cross-linked nanostructure consisting of polysiloxanes and hydrocarbon polymer units. Here we demonstrate that novel aerogels based on polyvinylpolysilsesquioxane (PVPSQ), polyallylpolysilsesquioxane (PAPSQ), polyvinylpolymethylsiloxane (PVPMS), and polyallylpolymethylsiloxane (PAPMS) are facilely prepared via this approach from vinyltrimethoxysilane (VTMS; or vinyltriethoxysilane, VTES), allyltrimethoxysilane (ATMS; or allyltriethoxysilane, ATES), vinylmethyldimethoxysilane (VMDMS), and allylmethyldimethoxysilane (AMDMS), respectively. These aerogels combine low density, uniform nanopores, high transparency, supercompressibility, high bendability, excellent machinability, and thermal superinsulation (λ = 14.5-16.4 mW m-1 K-1). More importantly, transparent, superflexible, superinsulating aerogels are obtained with PVPMS and PAPMS via highly scalable ambient pressure drying without any solvent-exchange and modifications for the first time. This work will open a new way to transparent, highly flexible porous materials, promising in the practical applications of thermal superinsulators, adsorbents, sensors, etc.

    DOI: 10.1021/acs.chemmater.8b00563

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  38. Transparent, Superflexible Doubly Cross-Linked Polyvinylpolymethylsiloxane Aerogel Superinsulators via Ambient Pressure Drying 査読有り

    Zu G., Shimizu T., Kanamori K., Zhu Y., Maeno A., Kaji H., Shen J., Nakanishi K.

    ACS Nano   12 巻 ( 1 ) 頁: 521 - 532   2018年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ACS Nano  

    Aerogels have many attractive properties but are usually costly and mechanically brittle, which always limit their practical applications. While many efforts have been made to reinforce the aerogels, most of the reinforcement efforts sacrifice the transparency or superinsulating properties. Here we report superflexible polyvinylpolymethylsiloxane, (CH2CH(Si(CH3)O2/2))n, aerogels that are facilely prepared from a single precursor vinylmethyldimethoxysilane or vinylmethyldiethoxysilane without organic cross-linkers. The method is based on consecutive processes involving radical polymerization and hydrolytic polycondensation, followed by ultralow-cost, highly scalable, ambient-pressure drying directly from alcohol as a drying medium without any modification or additional solvent exchange. The resulting aerogels and xerogels show a homogeneous, tunable, highly porous, doubly cross-linked nanostructure with the elastic polymethylsiloxane network cross-linked with flexible hydrocarbon chains. An outstanding combination of ultralow cost, high scalability, uniform pore size, high surface area, high transparency, high hydrophobicity, excellent machinability, superflexibility in compression, superflexibility in bending, and superinsulating properties has been achieved in a single aerogel or xerogel. This study represents a significant progress of porous materials and makes the practical applications of transparent flexible aerogel-based superinsulators realistic.

    DOI: 10.1021/acsnano.7b07117

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  39. Iron(iii) oxyhydroxide and oxide monoliths with controlled multiscale porosity: Synthesis and their adsorption performance 査読有り

    Hara Y., Kanamori K., Morisato K., Miyamoto R., Nakanishi K.

    Journal of Materials Chemistry A   6 巻 ( 19 ) 頁: 9041 - 9048   2018年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Materials Chemistry A  

    Iron(iii) oxyhydroxide and oxide monoliths with controlled multiscale porosity have been successfully fabricated via the sol-gel process accompanied by phase separation. The size of macropores was controlled by synthesis parameters such as starting compositions. The as-dried iron(iii) oxyhydroxide monoliths were amorphous and possessed surface areas over 340 m2 g-1, of which mesostructures could be further controlled by a heat-treatment at 250-350 °C without collapse of macrostructures and monolithic forms. When the as-dried gel was heated at 300 °C, the resultant gel transformed to crystalline α-Fe2O3 and exhibited a specific surface area of 124 m2 g-1. Heat-treatment at 350 °C resulted in the broadened size distribution of mesopores. The adsorption behavior of Congo red has revealed that the interconnected macroporous structure contributed to faster diffusion and better accessibility in a continuous flow-through set up, and the crack-free monolithic forms accounted for an advantageous use of the flow-through adsorbents.

    DOI: 10.1039/c8ta01691g

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  40. On-line redox derivatization liquid chromatography using a carbon monolithic column 査読有り

    Miyashita K., Tanaka R., Hasegawa G., Nakanishi K., Morioka K., Zeng H., Kato S., Uchiyama K., Saitoh K., Shibukawa M., Nakajima H.

    Bunseki Kagaku   67 巻 ( 8 ) 頁: 469 - 478   2018年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Bunseki Kagaku  

    A macroporous resorcinol-formaldehyde (RF) xerogel was synthesized via sol–gel reaction, accompanied by phase separation; a graphitized carbon monolith was then prepared by calcining the RF xerogel at a relatively low temperature (1200 °C) utilizing catalytic graphitization. The retention behaviors of metal-EDTA complexes on the carbon monolithic column were investigated. The carbon monolith exhibited catalytic activity for redox reactions, like porous graphitic carbon packing materials do; they oxidized Co(II)-EDTA to Co(III)-EDTA during elution. Their redox activity could be modified by treating with an eluent containing an oxidizing or reducing agent. A novel on-line redox derivatization HPLC system using a carbon monolithic column was developed for enhancing the separation selectivity. This on-line redox derivatization HPLC system consisted of two ODS columns as a separation column and one carbon monolithic column as redox derivatization unit placed between them. The Co(II)-EDTA migrated as its original oxidation state in the first ODS column, while it migrated as Co(III)-EDTA in the second ODS column, since Co(II)-EDTA was rapidly oxidized to Co(III)-EDTA in the carbon monolithic column. On the other hand, other metal-EDTA complexes migrated as their original oxidation states in these columns. Therefore, the Co-EDTA could be separated from the other metal-EDTA complexes. This on-line redox derivatization HPLC system was successfully used for determining the trace amount of cobalt in a reference copper alloy.

    DOI: 10.2116/bunsekikagaku.67.469

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  41. Synthesis of a hierarchically porous niobium phosphate monolith by a sol-gel method for fructose dehydration to 5-hydroxymethylfurfural 査読有り

    Gao D.M., Zhao B., Liu H., Morisato K., Kanamori K., He Z., Zeng M., Wu H., Chen J., Nakanishi K.

    Catalysis Science and Technology   8 巻 ( 14 ) 頁: 3675 - 3685   2018年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Catalysis Science and Technology  

    Hierarchically porous niobium phosphate (NbP) was synthesised via a sol-gel method accompanied by phase separation and employed as a catalyst for fructose dehydration. The niobium precursor was prepared by digesting ammonium niobate(v) oxalate in aqueous H2O2 with citric acid as a chelating agent to prevent the precipitation of niobium hydroxide. Poly(acrylamide) and poly(ethylene glycol) were used as phase separation inducers to produce co-continuous macropores and gel skeletons. The NbP sample calcined at 600 °C for 8 h had a high surface area (SBET ∼140 m2 g-1) and large acidity (0.84 mmol-NH3 g-1). The NbP monolith was amorphous after calcination at 600 °C and transformed into an α-NbOPO4 phase at 1000 °C. The NbP monolith calcined at 600 °C was an efficient acid catalyst for the dehydration of fructose to 5-hydroxymethylfurfural in water (70% yield) or in aqueous dimethyl sulfoxide (90% yield). The productivity of HMF reached 7.3 × 10-2 mol h-1 per kg-solution at an initial fructose concentration of 10.0 wt% in water with a catalyst loading of 2.0 wt%.

    DOI: 10.1039/c8cy00803e

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  42. The effect of exercise frequency on neuropathic pain and pain-related cellular reactions in the spinal cord and midbrain in a rat sciatic nerve injury model. 査読有り

    Sumizono M, Sakakima H, Otsuka S, Terashi T, Nakanishi K, Ueda K, Takada S, Kikuchi K

    Journal of pain research   11 巻   頁: 281 - 291   2018年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2147/JPR.S156326

    PubMed

  43. Synthesis and characterization of monolithic ZnAl2O4 spinel with well-defined hierarchical pore structures via a sol-gel route 査読有り

    Guo Xingzhong, Yin Pengan, Lei Wei, Yang Hui, Kanamori Kazuyoshi, Nakanishi Kazuki

    JOURNAL OF ALLOYS AND COMPOUNDS   727 巻   頁: 763 - 770   2017年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Alloys and Compounds  

    Hierarchically porous ZnAl2O4 spinel monolith derived from ionic precursors has been successfully prepared via the sol-gel route accompanied by phase separation in the presence of poly (ethylene oxide) (PEO) and propylene oxide (PO). Appropriate amounts of PEO as a phase-separation inducer and PO as a gelation mediator allow the formation of the xerogel with bicontinuous macrostructure and a monolithic shape. The macropore size of the resultant dried gel is mainly distributed in the range of 0.2–1 μm, and the whole porosity is about 65%. The dried gel is constructed by crystalline Zn–Al hydrotalcite, becoming amorphous after heat-treated at 300–500 °C in air, and is further transformed into single phase ZnAl2O4 spinel with plate-like shape at 600 °C. The macroporous structure is well maintained while the porosity increases to 75% and the surface area rises to 109 m2 g−1 after heat-treatment.

    DOI: 10.1016/j.jallcom.2017.08.172

    Web of Science

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  44. Aerogels from Chloromethyltrimethoxysilane and Their Functionalizations 査読有り

    Kimura T., Shimizu T., Kanamori K., Maeno A., Kaji H., Nakanishi K.

    Langmuir   33 巻 ( 48 ) 頁: 13841 - 13848   2017年12月

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

    Reactions of chloromethyltrimethoxysilane (CMTMS) and its derived colloidal network polychloromethylsilsesquioxane (PCMSQ) have been investigated to extend the material design strategy toward functionalized and mechanically reinforced aerogels. In a carefully designed sol-gel system, CMTMS has afforded transparent aerogels in the presence of cationic surfactant. The surface chloromethyl groups with polarity and reactivity are shown to be useful for supporting nanostructures, with photoluminescent carbon dots (C-dots) prepared from polyethylenimine and citric acid as an example. Furthermore, since nucleophilic substitution (SN2) reactions on the surface chloromethyl groups are found to control the equilibrium of formation/dissociation of siloxane bonds, a new gelation strategy triggered by SN2 reactions in sol-gel has been developed. In the presence of nucleophilic organic species such as polyamines, a hybrid network consisting of PCMSQ cross-linked with a polyamine nucleophile can be prepared to enhance mechanical properties of aerogel.

    DOI: 10.1021/acs.langmuir.7b03013

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  45. Polymer-assisted shapeable synthesis of porous frameworks consisting of silica nanoparticles with mechanical property tuning 査読有り

    Sato Kanako, Ishii Kanji, Oaki Yuya, Nakanishi Kazuki, Imai Hiroaki

    POLYMER JOURNAL   49 巻 ( 12 ) 頁: 825 - 830   2017年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Polymer Journal  

    We report the shapeable synthesis of porous silica frameworks using polyacrylamide (PAAm) gel as an organic template and hydrolyzed silicon alkoxide as a silica source. Macroscopically shaped porous frameworks - such as plates, tablets and sheets - comprised of 20- to 40-nm diameter silica particles are obtained via PAAm-silica precursor gels. The mechanical properties (i.e., hardness and Young's modulus) of the silica frameworks depend on the packing density and are controlled by changing the silica content in PAAm gels.

    DOI: 10.1038/pj.2017.62

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  46. Synthesis, Reduction, and Electrical Properties of Macroporous Monolithic Mayenite Electrides with High Porosity 査読有り

    Wang R., Yang H., Lu Y., Kanamori K., Nakanishi K., Guo X.

    ACS Omega   2 巻 ( 11 ) 頁: 8148 - 8155   2017年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ACS Omega  

    Room-temperature stable macroporous mayenite electride (C12A7:e-) has been successfully prepared via a sol-gel method accompanied by phase separation, followed by heat-treatment and reduction processes. The obtained xerogel monoliths possess controllable macrostructure and a porosity of more than 60%, depending on adjusting the amount of poly(ethylene oxide) as a phase separation inducer. Heat-treatment allows the formation of multicrystals Ca12Al14O32Cl2 and Ca12Al14O33 (C12A7), and the porosity increases to 78.67% after being heat-treated at 1100 °C. Further reduction promotes the transformation from Ca12Al14O32Cl2 or C12A7 to C12A7:e- as well as the conversion from an insulator to a semiconductive electride. The carrier concentration of the electride reaches 3.029 × 1018 cm-3 after being reduced at 1100 °C under Ar atmosphere, and the porosity still remains 66%. The macrostructure of the resultant mayenite electride before and after heat-treatment and reduction is perfectly preserved, indicating that the obtained macroporous monolithic mayenite electride could be utilized in the electronic components.

    DOI: 10.1021/acsomega.7b01121

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  47. Very Compact Millimeter Sizes for Composite Star-forming/AGN Submillimeter Galaxies 査読有り

    Ikarashi S., Caputi K.I., Ohta K., Ivison R.J., Lagos C.D.P., Bisigello L., Hatsukade B., Aretxaga I., Dunlop J.S., Hughes D.H., Iono D., Izumi T., Kashikawa N., Koyama Y., Kawabe R., Kohno K., Motohara K., Nakanishi K., Tamura Y., Umehata H., Wilson G.W., Yabe K., Yun M.S.

    Astrophysical Journal Letters   849 巻 ( 2 )   2017年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astrophysical Journal Letters  

    We report the study of the far-infrared (IR) sizes of submillimeter galaxies (SMGs) in relation to their dustobscured star formation rate (SFR) and active galactic nuclei (AGN) presence, determined using mid-IR photometry. We determined the millimeter-wave (λobs = 1100 μm) sizes of 69 Atacama Large Millimeter/ submillimeter Array (ALMA)-identified SMGs, selected with ≥10 δ confidence on ALMA images (F1100 μm = 1.7-7.4 mJy). We found that all of the SMGs are located above an avoidance region in the sizeflux plane, as expected by the Eddington limit for star formation. In order to understand what drives the different millimeter-wave sizes in SMGs, we investigated the relation between millimeter-wave size and AGN fraction for 25 of our SMGs at z=1-3. We found that the SMGs for which the mid-IR emission is dominated by star formation or AGN have extended millimeter-sizes, with respective median Rc,e = 1.6-0.21+0.34 and 1.5 -0.24+0.93 kpc. Instead, the SMGs for which the mid-IR emission corresponds to star-forming/AGN composites have more compact millimeter-wave sizes, with median Rc,e1.0 -0.20+0.20kpc. The relation between millimeter-wave size and AGN fraction suggests that this size may be related to the evolutionary stage of the SMG. The very compact sizes for composite star-forming/AGN systems could be explained by supermassive black holes growing rapidly during the SMG coalescing, star-formation phase.

    DOI: 10.3847/2041-8213/aa9572

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  48. Aerogels from chloromethyltrimethoxysilane and their functionalizations 査読有り

    Tomoki KIMURA, Taiyo SHIMIZU, Kazuyoshi KANAMORI, Ayaka MAENO, Hironori KAJI, Kazuki NAKANISHI

    Langumuir     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)  

  49. Ultralow-Density, Transparent, Superamphiphobic Boehmite Nanofiber Aerogels and Their Alumina Derivatives (vol 27, pg 3, 2015) 査読有り

    Hayase Gen D, Nonomura Kazuya, Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki

    CHEMISTRY OF MATERIALS   29 巻 ( 12 ) 頁: 5413 - 5413   2017年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/acs.chemmater.7b02431

    Web of Science

  50. Fabrication of hydrophobic polymethylsilsesquioxane aerogels by a surfactant-free method using alkoxysilane with ionic group 査読有り

    Hayase G., Nagayama S., Nonomura K., Kanamori K., Maeno A., Kaji H., Nakanishi K.

    Journal of Asian Ceramic Societies   5 巻 ( 2 ) 頁: 104 - 108   2017年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Asian Ceramic Societies  

    Phase separation control is an important factor to prepare a porous monolith by an aqueous sol–gel reaction. Here, we report a surfactant-free synthesis method to obtain hydrophobic polymethylsilsesquioxane aerogels by copolymerizing a cationic-functionalized alkoxysilane N-trimethoxysilylpropyl-N,N,N-trimethylammonium chloride. The resultant materials have low-density, high visible-light transmittance, and high thermal insulating equivalent to those of prepared under the presence of surfactant.

    DOI: 10.1016/j.jascer.2017.02.003

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  51. Transparent Ethenylene-Bridged Polymethylsiloxane Aerogels: Mechanical Flexibility and Strength and Availability for Addition Reaction 査読有り

    Shimizu T., Kanamori K., Maeno A., Kaji H., Doherty C.M., Nakanishi K.

    Langmuir   33 巻 ( 18 ) 頁: 4543 - 4550   2017年5月

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

    Transparent, low-density ethenylene-bridged polymethylsiloxane [Ethe-BPMS, O2/2(CH3)Si-CHCH-Si(CH3)O2/2] aerogels from 1,2-bis(methyldiethoxysilyl)ethene have successfully been synthesized via a sol-gel process. A two-step sol-gel process composed of hydrolysis under acidic conditions and polycondensation under basic conditions in a liquid surfactant produces a homogeneous pore structure based on cross-linked nanosized colloidal particles. Visible-light transmittance of the aerogels varies with the concentration of the base catalyst and reaches as high as 87% (at a wavelength of 550 nm for a 10 mm thick sample). Gelation and aging temperature strongly affect the deformation behavior of the resultant aerogels against uniaxial compression, and the obtained aerogels prepared at 80 °C show high elasticity after being unloaded. This highly resilient behavior is primarily derived from the rigidity of ethenylene groups, which is confirmed by a comparison with other aerogels with similar molecular structures, ethylene-bridged polymethylsiloxane and polymethylsilsesquioxane. Applicability of the addition reaction using a Diels-Alder reaction of benzocyclobutene has also been investigated, revealing that a successful addition takes place on the ethenylene linkings, which is verified using Raman and solid-state NMR spectroscopies. Insights into the effect of molecular structure on mechanical properties and the availability of surface functionalization provided in this study are important for realizing transparent aerogels with the desired functionality.

    DOI: 10.1021/acs.langmuir.7b00434

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  52. Silicone-Based Organic–Inorganic Hybrid Aerogels and Xerogels 査読有り

    Shimizu T., Kanamori K., Nakanishi K.

    Chemistry - A European Journal   23 巻 ( 22 ) 頁: 5176 - 5187   2017年4月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemistry - A European Journal  

    Aerogels are attracting increasing attention due to their high thermal insulation ability as well as unique properties such as high porosity, surface area, and transparency. However, low mechanical strengths, originating from their unique porous structure, impede handling, formability, mass production, and extended applications. This minireview focuses on the strengthening of aerogels by several organic–inorganic hybridization strategies. In particular, successful strengthening methodologies, which employ organo-substituted alkoxysilanes as the single precursor for the sol–gel preparations, developed by the authors are highlighted. Moreover, improvements in compressive strength and elasticity lead to monolithic aerogel-like xerogels through ambient pressure drying. Correlations between structures in different length scales (e.g., molecular, network, and pore structure levels) and resultant mechanical properties are discussed for further understandings and better design toward mechanically improved aerogels/xerogels and their applications.

    DOI: 10.1002/chem.201603680

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  53. Transparent polyvinylsilsesquioxane aerogels: investigations on synthetic parameters and surface modification 査読有り

    Shimizu T., Kanamori K., Nakanishi K.

    Journal of Sol-Gel Science and Technology   82 巻 ( 1 ) 頁: 2 - 14   2017年4月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Sol-Gel Science and Technology  

    Abstract: Systematic investigations on the effect of synthetic conditions onto the properties of polyvinylsilsesquioxane (CH2=CHSiO3/2) aerogels have been conducted. As previously reported, transparent polyvinylsilsesquioxane aerogels can be obtained by utilizing a liquid surfactant as a solvent and a two-step sol–gel reaction involving hydrolysis catalyzed by a strong acid and subsequent polycondensation by a strong base. In this study, effects of base catalyst, gelation and aging conditions, amount of surfactant and concentration of acid catalyst have been investigated. With the optimized synthetic condition, the value of light transmittance reaches as high as 70% (at the wavelength of 550 nm for a 10-mm thick sample). Applicability of addition reactions utilizing thiol-ene reactions and hydrosilylation has also been surveyed. Thiol-ene reactions are relatively effective and can modify surface hydrophobicity and mechanical properties of polyvinylsilsesquioxane aerogels. In the case of hydrosilylation, a partial addition of a hydrosilane compound onto the polyvinylsilsesquioxane gel surface can be observed. Addition reactions, in particular thiol-ene reactions, are found to be profitable for implementing chemical functionality on the transparent aerogels. Graphical Abstract: [InlineMediaObject not available: see fulltext.]

    DOI: 10.1007/s10971-017-4339-6

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  54. Highly Flexible Hybrid Polymer Aerogels and Xerogels Based on Resorcinol-Formaldehyde with Enhanced Elastic Stiffness and Recoverability: Insights into the Origin of Their Mechanical Properties 査読有り

    Hasegawa G., Shimizu T., Kanamori K., Maeno A., Kaji H., Nakanishi K.

    Chemistry of Materials   29 巻 ( 5 ) 頁: 2122 - 2134   2017年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemistry of Materials  

    Flexible low-density materials, such as aerogels and polymer foams, have received increasing attention as energy absorbers and cushions that protect artificial products and human bodies. Microscopic geometry is a crucial factor determining their mechanical functions, i.e. strength and toughness (flexibility). However, it is a formidable challenge to combine these two properties because they are mutually elusive in general; stiff materials are brittle, while flexible ones are soft. Here, we demonstrate lightweight porous polymeric materials based on a common phenolic resin, resorcinol-formaldehyde (RF) gels, with salient combinatorial properties of high stiffness (up to 100 MPa) and good recoverable compressibility (against 80-90% strain), which can deliver remarkable energy absorption and dissipation performances repetitively. The detailed investigation reveals that the unique mechanical features originate from the synergetic effect of interdigitated hard and soft components in polymer matrices as well as exquisitely designed highly branched microstructures both generated through the spontaneous supramolecular self-assembly of the nonionic block copolymer (F127) and RF oligomer, which is essentially analogous to how natural organisms create biological structural materials, e.g. nacre and bone.

    DOI: 10.1021/acs.chemmater.6b04706

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  55. Highly efficient encapsulation of ingredients in poly(methyl methacrylate) capsules using a superoleophobic material 査読有り

    Takei T., Araki K., Terazono K., Ozuno Y., Hayase G., Kanamori K., Nakanishi K., Yoshida M.

    Polymers and Polymer Composites   25 巻 ( 2 ) 頁: 129 - 134   2017年2月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Polymers and Polymer Composites  

    Increasing the efficiency of encapsulation of ingredients into spherical capsules can decrease the manufacturing costs of the capsules. Ingredients can be encapsulated with high efficiency (>99%) into nondegradable hard resin capsules prepared by polymerization of spherical droplets of trimethylolpropane trimethacrylate (TRIM) monomer placed on a superoleophobic material. Poly(methyl methacrylate) (PMMA) resin is a more versatile capsule material than poly-TRIM resin. In this study, the efficiency of encapsulation in PMMA resin capsules prepared from methyl methacrylate (MMA) monomer was investigated. To reduce the volatility of the MMA monomer, pre-polymerized MMA was used for capsule preparation. Although non-volatile α-tocopherol and doxorubicin could be encapsulated in the capsules with high efficiency by heat polymerization at 60°C for 3 h, the efficiency for volatile tetradecane was much lower (approximately 60%) because it evaporated. Furthermore, even when using pre-polymerized MMA, more than 70% of the prepolymer evaporated during polymerization. To prevent the evaporation of tetradecane and the prepolymer, ultraviolet photopolymerization was adopted because it was faster and could be conducted at a lower temperature. The photopolymerization prevented the evaporation of the prepolymer and increased the efficiency of encapsulation of tetradecane (approximately 90% efficiency). This polymerization system is effective for encapsulation of ingredients in PMMA capsules with high efficiency.

    DOI: 10.1177/096739111702500202

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  56. Amine/Hydrido Bifunctional Nanoporous Silica with Small Metal Nanoparticles Made Onsite: Efficient Dehydrogenation Catalyst. 査読有り

    Zhu Y, Nakanishi T, Kanamori K, Nakanishi K, Ichii S, Iwaida K, Masui Y, Kamei T, Shimada T, Kumamoto A, Ikuhara YH, Jeon M, Hasegawa G, Tafu M, Yoon CW, Asefa T

    ACS applied materials & interfaces   9 巻 ( 1 ) 頁: 36 - 41   2017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:ACS Applied Materials and Interfaces  

    Multifunctional catalysts are of great interest in catalysis because their multiple types of catalytic or functional groups can cooperatively promote catalytic transformations better than their constituents do individually. Herein we report a new synthetic route involving the surface functionalization of nanoporous silica with a rationally designed and synthesized dihydrosilane (3-aminopropylmethylsilane) that leads to the introduction of catalytically active grafted organoamine as well as single metal atoms and ultrasmall Pd or Ag-doped Pd nanoparticles via on-site reduction of metal ions. The resulting nanomaterials serve as highly effective bifunctional dehydrogenative catalysts for generation of H2 from formic acid.

    DOI: 10.1021/acsami.6b12972

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  57. Grafted Polymethylhydrosiloxane on Hierarchically Porous Silica Monoliths: A New Path to Monolith-Supported Palladium Nanoparticles for Continuous Flow Catalysis Applications. 査読有り

    Pélisson CH, Nakanishi T, Zhu Y, Morisato K, Kamei T, Maeno A, Kaji H, Muroyama S, Tafu M, Kanamori K, Shimada T, Nakanishi K

    ACS applied materials & interfaces   9 巻 ( 1 ) 頁: 406 - 412   2017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:ACS Applied Materials and Interfaces  

    Polymethylhydrosiloxane has been grafted on the surface of a hierarchically porous silica monolith using a facile catalytic reaction between Si-H and silanol to anchor the polymer. This easy methodology leads to the functionalization of the surface of a silica monolith, where a large amount of free Si-H bonds remain available for reducing metal ions in solution. Palladium nanoparticles of 15 nm have been synthesized homogeneously inside the mesopores of the monolith without any stabilizers, using a flow of a solution containing Pd2+. This monolith was used as column-type fixed bed catalyst for continuous flow hydrogenation of styrene and selective hydrogenation of 3-hexyn-1-ol, in each case without a significant decrease of the catalytic activity after several hours or days. Conversion, selectivity, and stereoselectivity of the alkyne hydrogenation can be tuned by flow rates of hydrogen and the substrate solution, leading to high productivity (1.57 mol g(Pd)-1 h-1) of the corresponding cis-alkene.

    DOI: 10.1021/acsami.6b12653

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  58. Low-density, transparent aerogels and xerogels based on hexylene-bridged polysilsesquioxane with bendability 査読有り

    Aoki Y., Shimizu T., Kanamori K., Maeno A., Kaji H., Nakanishi K.

    Journal of Sol-Gel Science and Technology   81 巻 ( 1 ) 頁: 42 - 51   2017年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Sol-Gel Science and Technology  

    Abstract: Low-density, transparent aerogels based on a hexylene-bridged polysilsesquioxane ([O1.5Si–(CH2)6–SiO1.5]n) network have been prepared for the first time via a simple sol–gel process. An optimized base-catalyzed one-step hydrolysis–polycondensation process of a bridged alkoxysilane precursor 1,6-bis(trimethoxysilyl)hexane in a low-polarity solvent N,N-dimethylformamide allows for the formation of a pore structure of a length scale of several tens nanometers, resulting in low-density, transparent aerogels after supercritical drying. Because of the incorporated organic moiety that bridges the silicon atoms in the network, these aerogels show higher flexibility and strength against compression and bending as compared to silica aerogel counterparts. In addition, minimizing the residual silanol groups in the network by a surface modification with hexamethyldisilazane has further improved resilience after compression and bending flexibility and strength, due to the decreased chance of the irreversible formation of the siloxane bonds upon compression. The resulting trimethylsilylated hydrophobic gels have been subjected to ambient pressure drying to obtain xerogels, resulting in low-density (0.13 g cm−3, 90 % porosity), transparent (71 % transmittance) xerogels. These results are promising for the development of transparent thermal superinsulators applicable to window insulating systems that manage heat transfer in a more efficient way. Graphical Abstract: [Figure not available: see fulltext.]

    DOI: 10.1007/s10971-016-4077-1

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  59. Effects of nanostructured biosilica on rice plant mechanics 査読有り

    Sato Kanako, Ozaki Noriaki, Nakanishi Kazuki, Sugahara Yoshiyuki, Oaki Yuya, Salinas Christopher, Herrera Steven, Kisailus David, Imai Hiroaki

    RSC ADVANCES   7 巻 ( 22 ) 頁: 13065 - 13071   2017年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:RSC Advances  

    Nanostructured amorphous silica in rice plants (biosilica or plant opal) plays an important role in plant growth related to food production. However, the same silica has a structural supporting role as well that has not been uncovered. The current study focuses on the structural design of the two main types of biosilicas in rice plants for the improvement of their mechanical properties. One structural motif is plate-like silicas, which cover most of the surfaces of leaf blades. Another is fan-shaped silicas, which are aligned inside leaf blades, providing a stiff backbone. These biosilica structures consist of 10-100 nm diameter nanoparticles. The mechanical properties, such as hardness and Young's modulus, of the biosilicas are associated with their relative density. Thus, the rice plant mechanics is inferred to be designed by changing the packing of the nanoparticles. Silica plates consisting of loosely packed particles have relatively low density and high flexibility enabling coverage of leaf blade surfaces, while fan-shaped silicas, which consist of tightly packed nanoparticles, are rigid to support the leaf blades as a backbone.

    DOI: 10.1039/c6ra27317c

    Web of Science

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  60. Functionalization of hierarchically porous silica monoliths with polyethyleneimine (PEI) for CO<inf>2</inf> adsorption 査読有り

    Guo X., Ding L., Kanamori K., Nakanishi K., Yang H.

    Microporous and Mesoporous Materials   245 巻   頁: 51 - 57   2017年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Microporous and Mesoporous Materials  

    A novel CO2 sorbent was prepared by modifying polyethyleneimine (PEI) on hierarchically porous silica (HPS) monoliths with well-defined macro-mesopores through wet impregnation method. HPS monoliths before and after functionalization were characterized by scanning electron microscopy (SEM), differential thermal analysis/thermogravimetry (DTA/TG), fourier transform infrared spectroscopy (FT-IR) and nitrogen adsorption/desorption analysis (BET), and the CO2 adsorption-regeneration properties of as-synthesized sorbents were investigated by thermogravimetric analysis (TG). The effects of loaded PEI amount as well as adsorption temperature and CO2 partial pressure on the CO2 adsorption performance of the as-prepared sorbents were also studied. The results showed that the porous structure of HPS-PEI sorbents was preserved after functionalization, while the specific surface area and pore volume decreased with increasing amount of amines to some extent. The use of PEI had a remarkable improvement on the CO2 adsorption capacity. With the increasing amount of PEI loaded, the CO2 adsorption capacity improved significantly. The highest CO2 adsorption capacity of 2.44 mmol (g sorbent)−1 was obtained at 75 °C in the CO2 partial pressure of 100 kPa for the HPS loaded with 60 wt% PEI. Adsorption/desorption cycles indicated that the PEI-modified HPS sorbents had a good stability and regeneration.

    DOI: 10.1016/j.micromeso.2017.02.076

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  61. Nanostructured titanium phosphates prepared via hydrothermal reaction and their electrochemical Li- and Na-ion intercalation properties 査読有り

    Zhu Y., Hasegawa G., Kanamori K., Kiyomura T., Kurata H., Hayashi K., Nakanishi K.

    CrystEngComm   19 巻 ( 31 ) 頁: 4551 - 4560   2017年

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

    In this report, we demonstrate a facile and versatile methodology for synthesizing a series of titanium phosphates (TiPs) with various morphologies. The hydrothermal reactions of TiO2 in different concentrations of H3PO4 aq. yield 4 types of crystal structures with diverse shapes, such as nanoparticles, nanorods and nanosheets, which are assembled into a variety of flower-like morphologies. The dependence of the crystal phases and morphologies of TiPs on the synthesis conditions have been comprehensively investigated. This synthetic process can be further extended to other TiP derivatives incorporated with guest cations (e.g. NH4+ and Na+) simply by adding the corresponding phosphate salts to the starting composition, which leads to the morphological variation associated with the change of the crystal phase. The mechanism for the formation of the TiPs is discussed in terms of the stable Ti-based ion species relying on the pH value of the reaction solution. In addition, the correlation between the crystal structures and morphologies of TiPs and their electrochemical Li- and Na-ion storage behaviors are demonstrated as well, which discloses the different tendencies of morphological effects between the Li- and Na-ion systems.

    DOI: 10.1039/c7ce01123g

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  62. Transparent Ethylene-Bridged Polymethylsiloxane Aerogels and Xerogels with Improved Bending Flexibility. 査読有り

    Shimizu T, Kanamori K, Maeno A, Kaji H, Nakanishi K

    Langmuir : the ACS journal of surfaces and colloids   32 巻 ( 50 ) 頁: 13427 - 13434   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:Langmuir  

    Transparent, monolithic aerogels with nanosized colloidal skeletons have been obtained from a single precursor of 1,2-bis(methyldiethoxysilyl)ethane (BMDEE) by adopting a liquid surfactant and a two-step process involving strong-acid, followed by strong-base, sol-gel reactions. This precursor BMDEE forms the ethylene-bridged polymethylsiloxane (EBPMS, O2/2(CH3)Si-CH2CH2-Si(CH3)O2/2) network, in which each silicon has one methyl, two bridging oxygens, and one bridging ethylene, exhibiting an analogous structure to that of the previously reported polymethylsilsesquioxane (PMSQ, CH3SiO3/2) aerogels having one methyl and three bridging oxygen atoms. Obtained aerogels consist of fine colloidal skeletons and show high visible-light transparency and a flexible deformation behavior against compression without collapse. Similar to the PMSQ aerogels, a careful tuning of synthetic conditions can produce low-density (0.19 g cm-3) and highly transparent (76% at 550 nm, corresponding to 10 mm thick samples) xerogels via ambient pressure drying by solvent evaporation due to their high strength and resilience against compression. Moreover, EBPMS aerogels exhibit higher bending strength and bending strain at break against the three-point bending mode compared to PMSQ aerogels. This improved bendability is presumably derived from the introduced ethylene-bridging parts, suggesting the potential for realizing transparent and bendable aerogels in such polysiloxane materials with organic linking units.

    DOI: 10.1021/acs.langmuir.6b03249

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  63. Monolithic acidic catalysts for the dehydration of xylose into furfural 査読有り

    Zhu Y., Kanamori K., Brun N., Pélisson C., Moitra N., Fajula F., Hulea V., Galarneau A., Takeda K., Nakanishi K.

    Catalysis Communications   87 巻   頁: 112 - 115   2016年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Catalysis Communications  

    We report the application of hierarchically porous zirconium phosphate monoliths with high surface area as acidic heterogeneous catalysts for the dehydration of xylose into furfural. Analyses by NH3-temperature programmed desorption and 31P solid state NMR reveal the presence of both Lewis and Brønsted acid sites in the as-synthesized zirconium phosphate monolith and that calcined at 600 °C. High accessibility and availability of the acidic sites and easy separation of the monolith from the liquid medium result in good catalytic activity (initial reaction rate for furfural production as 8.7 mmol gcat− 1 h− 1) with easy handling of the catalyst.

    DOI: 10.1016/j.catcom.2016.09.014

    Scopus

  64. Transparent, Highly Insulating Polyethyl- and Polyvinylsilsesquioxane Aerogels: Mechanical Improvements by Vulcanization for Ambient Pressure Drying 査読有り

    Shimizu T., Kanamori K., Maeno A., Kaji H., Doherty C., Falcaro P., Nakanishi K.

    Chemistry of Materials   28 巻 ( 19 ) 頁: 6860 - 6868   2016年10月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemistry of Materials  

    Silica aerogels are unique porous materials possessing high visible-light transparency and low thermal conductivity. However, the practical applications are limited due to the native fragility of silica, and a lot of research focuses on the improvement of mechanical properties by organic-inorganic hybridization, and so forth. Here, the first synthesis of polyethylsilsesquioxane (PESQ; CH3CH2SiO1.5) and polyvinylsilsesquioxane (PVSQ; CH2 - CHSiO1.5) aerogels is reported. The resultant PESQ and PVSQ aerogels obtained through a two-step acid-base sol-gel reaction in a surfactant-based solution exhibit visible-light transmittance and flexibility against compression without collapsing. The microstructural variations of these aerogels are systematically investigated by positron annihilation lifetime spectroscopy (PALS) in order to clarify the differences in properties derived from substituent groups. Furthermore, a post cure on the PVSQ wet gel using a radical initiator induces polymerization of vinyl groups in the solid network, resulting in mechanically reinforced aerogels with higher compressive modulus and resilience. This chemical modification, similar to vulcanization in silicone rubber materials, helps to produce xerogels with comparable properties to those of aerogels via ambient pressure drying. Since the resultant xerogel obtained from the vulcanization of PVSQ shows sufficiently low thermal conductivity of 15.3 mW m-1 K-1, these novel polysilsesquioxane materials are promising for transparent aerogels/xerogels superinsulators.

    DOI: 10.1021/acs.chemmater.6b01936

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  65. The XVIII International Sol-Gel Conference: Sol-Gel 2015 was held in Kyoto, Japan, September 6-11, 2015 査読有り

    Nakanishi Kazuki

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   79 巻 ( 2 ) 頁: 241 - 241   2016年8月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10971-016-4124-y

    Web of Science

  66. Facile preparation of well-defined macroporous yttria-stabilized zirconia monoliths via sol-gel process accompanied by phase separation 査読有り

    Guo Xingzhong, Song Jie, Ren Jing, Yang Fanger, Kanamori Kazuyoshi, Nakanishi Kazuki

    JOURNAL OF POROUS MATERIALS   23 巻 ( 4 ) 頁: 867 - 875   2016年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10934-016-0143-x

    Web of Science

  67. Metal zirconium phosphate macroporous monoliths: Versatile synthesis, thermal expansion and mechanical properties 査読有り

    Zhu Yang, Kanamori Kazuyoshi, Moitra Nirmalya, Kadono Kohei, Ohi Shugo, Shimobayashi Norimasa, Nakanishi Kazuki

    MICROPOROUS AND MESOPOROUS MATERIALS   225 巻   頁: 122 - 127   2016年5月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.micromeso.2015.12.002

    Web of Science

  68. The chromatographic performance of flow-through particles: A computational fluid dynamics study 査読有り

    Smits Wim, Nakanishi Kazuki, Desmet Gert

    JOURNAL OF CHROMATOGRAPHY A   1429 巻   頁: 166 - 174   2016年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2015.12.019

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  69. Hierarchically porous titanium phosphate monoliths and their crystallization behavior in ethylene glycol 査読有り

    Zhu Yang, Yoneda Koji, Kanamori Kazuyoshi, Takeda Kazuyuki, Kiyomura Tsutomu, Kurata Hiroki, Nakanishi Kazuki

    NEW JOURNAL OF CHEMISTRY   40 巻 ( 5 ) 頁: 4153 - 4159   2016年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c5nj02820e

    Web of Science

  70. Mesoscopic superstructures of flexible porous coordination polymers synthesized <i>via</i> coordination replication. 査読有り

    Sumida K, Moitra N, Reboul J, Fukumoto S, Nakanishi K, Kanamori K, Furukawa S, Kitagawa S

    Chemical science   6 巻 ( 10 ) 頁: 5938 - 5946   2015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)  

    DOI: 10.1039/c5sc02034d

    PubMed

  71. Synthesis of hierarchically porous polymethylsilsesquioxane monoliths with controlled mesopores for HPLC separation 査読有り

    Yang Zhu, Yoshie Morimoto, Taiyo Shimizu, Kei Morisato, Kazuyuki Takeda, Kazuyoshi Kanamori, Kazuki Nakanishi

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   123 巻 ( 1441 ) 頁: 770 - 778   2015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:CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI  

    Sol-gel synthesis of macroporous polymethylsilsesquioxane (PMSQ) monoliths has been successful over the past decade, and applications to separation media have been investigated. However, the control of mesopores to tailor hierarchical porosity, which is promising for improvement of the separation efficiency, remains challenging. In particular, an independent control of meso- and macropores has not been achieved in PMSQ. Herein we present a method to synthesize PMSQ monoliths with well-defined macropores and controlled mesostructure (pore size ranging from 10 to 60 nm, total pore volume from 0.2 to 0.6 cm(3) g(-1)) via sol-gel accompanied by phase separation. Different Pluronic-type nonionic surfactants were used to control phase separation of the hydrophobic PMSQ network in aqueous media. Due to different packing density of the colloidal PMSQ constituents in the continuous skeletons in the micrometer-scale (termed as macropore skeletons) and their rearrangements through the hydrothermal post-treatment under basic conditions, mesopore characteristics have been successfully controlled independently of the preformed macropore structure. Separation columns for high-performance liquid chromatography (HPLC) have been fabricated using the PMSQ monoliths, and acceptable separation performances in both the reversed-phase and normal-phase modes have been demonstrated due to the presence of both hydrophilic silanol groups and hydrophobic methyl groups. (C) 2015 The Ceramic Society of Japan. All rights reserved.

    DOI: 10.2109/jcersj2.123.770

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  72. High-performance liquid chromatography separation of unsaturated organic compounds by a monolithic silica column embedded with silver nanoparticles. 査読有り

    Zhu Y, Morisato K, Hasegawa G, Moitra N, Kiyomura T, Kurata H, Kanamori K, Nakanishi K

    Journal of separation science   38 巻 ( 16 ) 頁: 2841 - 7   2015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)  

    DOI: 10.1002/jssc.201500444

    PubMed

  73. Correction to Effect of Calcination Conditions on Porous Reduced Titanium Oxides and Oxynitrides via a Preceramic Polymer Route. 査読有り

    Hasegawa G, Sato T, Kanamori K, Sun CJ, Ren Y, Kobayashi Y, Kageyama H, Abe T, Nakanishi K

    Inorganic chemistry   54 巻 ( 11 ) 頁: 5614   2015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)  

    DOI: 10.1021/acs.inorgchem.5b00810

    PubMed

  74. Preparation of macroporous zirconia monoliths from ionic precursors via an epoxide-mediated sol-gel process accompanied by phase separation. 査読有り

    Guo X, Song J, Lvlin Y, Nakanishi K, Kanamori K, Yang H

    Science and technology of advanced materials   16 巻 ( 2 ) 頁: 025003   2015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)  

    DOI: 10.1088/1468-6996/16/2/025003

    PubMed

  75. Effect of calcination conditions on porous reduced titanium oxides and oxynitrides via a preceramic polymer route. 査読有り

    Hasegawa G, Sato T, Kanamori K, Sun CJ, Ren Y, Kobayashi Y, Kageyama H, Abe T, Nakanishi K

    Inorganic chemistry   54 巻 ( 6 ) 頁: 2802 - 8   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)  

    DOI: 10.1021/ic502972v

    PubMed

  76. Mechanically stable, hierarchically porous Cu3(btc)2 (HKUST-1) monoliths via direct conversion of copper(II) hydroxide-based monoliths. 査読有り

    Moitra N, Fukumoto S, Reboul J, Sumida K, Zhu Y, Nakanishi K, Furukawa S, Kitagawa S, Kanamori K

    Chemical communications (Cambridge, England)   51 巻 ( 17 ) 頁: 3511 - 4   2015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)  

    DOI: 10.1039/c4cc09694k

    PubMed

  77. Efficiency of short, small-diameter columns for reversed-phase liquid chromatography under practical operating conditions 査読有り

    Ma Yan, Chassy Alexander W., Miyazaki Shota, Motokawa Masanori, Morisato Kei, Uzu Hideyuki, Ohira Masayoshi, Furuno Masahiro, Nakanishi Kazuki, Minakuchi Hiroyoshi, Mriziq Khaled, Farkas Tivadar, Fiehn Oliver, Tanaka Nobuo

    JOURNAL OF CHROMATOGRAPHY A   1383 巻   頁: 47 - 57   2015年2月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2015.01.014

    Web of Science

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  78. Direct preparation and conversion of copper hydroxide-based monolithic xerogels with hierarchical pores 査読有り

    Fukumoto Shotaro, Nakanishi Kazuki, Kanamori Kazuyoshi

    NEW JOURNAL OF CHEMISTRY   39 巻 ( 9 ) 頁: 6771 - 6777   2015年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c5nj00479a

    Web of Science

  79. Preparation of silver nanoparticles embedded hierarchically porous AlPO4 monoliths 査読有り

    Cai Xiaobo, Zhu Wenjun, Yang Hui, Xu Chenyang, Nakanishi Kazuki, Kanamori Kazuyoshi, Guo Xingzhong

    NEW JOURNAL OF CHEMISTRY   39 巻 ( 8 ) 頁: 6238 - 6243   2015年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c5nj00490j

    Web of Science

  80. Spontaneous preparation of hierarchically porous silica monoliths with uniform spherical mesopores confined in a well-defined macroporous framework 査読有り

    Guo Xingzhong, Wang Rui, Yu Huan, Zhu Yang, Nakanishi Kazuki, Kanamori Kazuyoshi, Yang Hui

    DALTON TRANSACTIONS   44 巻 ( 30 ) 頁: 13592 - 13601   2015年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c5dt01672j

    Web of Science

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  81. Sol-gel synthesis of nanocrystal-constructed hierarchically porous TiO2 based composites for lithium ion batteries 査読有り

    Zhu Wenjun, Yang Hui, Nakanishi Kazuki, Kanamori Kazuyoshi, Guo Xingzhong

    RSC ADVANCES   5 巻 ( 31 ) 頁: 24803 - 24813   2015年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c5ra03491d

    Web of Science

  82. Facile synthesis of monolithic mayenite with well-defined macropores via an epoxide-mediated sol-gel process accompanied by phase separation 査読有り

    Guo Xingzhong, Cai Xiaobo, Song Jie, Zhu Yang, Nakanishi Kazuki, Kanamori Kazuyoshi, Yang Hui

    NEW JOURNAL OF CHEMISTRY   38 巻 ( 12 ) 頁: 5832 - 5839   2014年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c4nj00898g

    Web of Science

    Scopus

  83. Facile preparation of silver nanoparticles homogeneously immobilized in hierarchically monolithic silica using ethylene glycol as reductant 査読有り

    Yu Huan, Zhu Yang, Yang Hui, Nakanishi Kazuki, Kanamori Kazuyoshi, Guo Xingzhong

    DALTON TRANSACTIONS   43 巻 ( 33 ) 頁: 12648 - 12656   2014年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/C4DT00655K

    Web of Science

    PubMed

  84. Surface functionalization of silica by Si-H activation of hydrosilanes. 査読有り

    Moitra N, Ichii S, Kamei T, Kanamori K, Zhu Y, Takeda K, Nakanishi K, Shimada T

    Journal of the American Chemical Society   136 巻 ( 33 ) 頁: 11570 - 3   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)  

    DOI: 10.1021/ja504115d

    PubMed

  85. Experimental and numerical validation of the effective medium theory for the B-term band broadening in 1st and 2nd generation monolithic silica columns. 査読有り

    Deridder S, Vanmessen A, Nakanishi K, Desmet G, Cabooter D

    Journal of chromatography. A   1351 巻   頁: 46 - 55   2014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)  

    DOI: 10.1016/j.chroma.2014.04.099

    PubMed

  86. Polymethylsilsesquioxane-cellulose nanofiber biocomposite aerogels with high thermal insulation, bendability, and superhydrophobicity. 査読有り

    Hayase G, Kanamori K, Abe K, Yano H, Maeno A, Kaji H, Nakanishi K

    ACS applied materials & interfaces   6 巻 ( 12 ) 頁: 9466 - 71   2014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)  

    DOI: 10.1021/am501822y

    PubMed

  87. Preparation of macroporous cordierite monoliths via the sol-gel process accompanied by phase separation 査読有り

    Guo Xingzhong, Nakanishi Kazuki, Kanamori Kazuyoshi, Zhu Yang, Yang Hui

    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY   34 巻 ( 3 ) 頁: 817 - 823   2014年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jeurceramsoc.2013.08.016

    Web of Science

  88. Detailed characterization of the kinetic performance of first and second generation silica monolithic columns for reversed-phase chromatography separations. 査読有り

    Cabooter D, Broeckhoven K, Sterken R, Vanmessen A, Vandendael I, Nakanishi K, Deridder S, Desmet G

    Journal of chromatography. A   1325 巻   頁: 72 - 82   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)  

    DOI: 10.1016/j.chroma.2013.11.047

    PubMed

  89. The thermal conductivity of polymethylsilsesquioxane aerogels and xerogels with varied pore sizes for practical application as thermal superinsulators 査読有り

    G. Hayase, K. Kugimiya, M. Ogawa, Y. Kodera, K. Kanamori, K. Nakanishi

    JOURNAL OF MATERIALS CHEMISTRY A   2 巻 ( 18 ) 頁: 6525 - 6531   2014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  

    High-performance thermal insulating materials are desired especially from the viewpoint of saving energy for a sustainable society. Aerogel is the long-awaited material for extended applications due to its excellent thermal insulating ability. These materials are, however, seriously fragile against even small mechanical stress due to their low density, and their poor mechanical properties inhibit their practical use as superinsulators. In this paper, we report relationships between the thermal conductivity, pore size and mechanical properties of organic-inorganic hybrid polymethylsilsesquioxane (PMSQ) aerogels with improved mechanical properties and controllable pore sizes from similar to 50 nm to 3 mu m. The dependency of thermal conductivity on gas pressure and pore properties can be well explained by the thermal conduction theory of porous materials. These PMSQ aerogels show improved mechanical properties due to their elastic networks, which enable easier handling compared to conventional aerogels and facile production by simple ambient pressure drying. An aerogel-like "xerogel" monolithic panel has been successfully prepared via ambient pressure drying, which shows a low thermal conductivity (0.015 W m(-1) K-1) comparable with those of the corresponding PMSQ aerogel and conventional silica aerogels. These results would open the gate for practical applications of these porous materials.

    DOI: 10.1039/c3ta15094a

    Web of Science

  90. Pore structure control of macroporous methylsilsesquioxane monoliths prepared by in situ two-step processing 査読有り

    Guo Xingzhong, Yu Huan, Yang Hui, Kanamori Kazuyoshi, Zhu Yang, Nakanishi Kazuki

    JOURNAL OF POROUS MATERIALS   20 巻 ( 6 ) 頁: 1477 - 1483   2013年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10934-013-9733-z

    Web of Science

  91. A superamphiphobic macroporous silicone monolith with marshmallow-like flexibility. 査読有り

    Hayase G, Kanamori K, Hasegawa G, Maeno A, Kaji H, Nakanishi K

    Angewandte Chemie (International ed. in English)   52 巻 ( 41 ) 頁: 10788 - 91   2013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)  

    DOI: 10.1002/anie.201304169

    PubMed

  92. Recyclable functionalization of silica with alcohols via dehydrogenative addition on hydrogen silsesquioxane. 査読有り

    Moitra N, Kamei T, Kanamori K, Nakanishi K, Takeda K, Shimada T

    Langmuir : the ACS journal of surfaces and colloids   29 巻 ( 39 ) 頁: 12243 - 53   2013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)  

    DOI: 10.1021/la402205j

    PubMed

  93. Preparation of mullite monoliths with well-defined macropores and mesostructured skeletons via the sol-gel process accompanied by phase separation 査読有り

    Guo Xingzhong, Li Wenyan, Nakanishi Kazuki, Kanamori Kazuyoshi, Zhu Yang, Yang Hui

    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY   33 巻 ( 10 ) 頁: 1967 - 1974   2013年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jeurceramsoc.2013.02.018

    Web of Science

  94. Sol-gel synthesis of macroporous TiO2 from ionic precursors via phase separation route 査読有り

    Li Wenyan, Guo Xingzhong, Zhu Yang, Hui Yang, Kanamori Kazuyoshi, Nakanishi Kazuki

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   67 巻 ( 3 ) 頁: 639 - 645   2013年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10971-013-3123-5

    Web of Science

  95. Gelation behavior and phase separation of macroporous methylsilsesquioxane monoliths prepared by in situ two-step processing

    Guo Xingzhong, Li Wenyan, Yang Hui, Kanamori Kazuyoshi, Zhu Yang, Nakanishi Kazuki

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   67 巻 ( 2 ) 頁: 406-413   2013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)  

    DOI: 10.1007/s10971-013-3094-6

    Web of Science

  96. Hierarchically porous nickel/carbon composite monoliths prepared by sol-gel method from an ionic precursor 査読有り

    Kido Yasuki, Nakanishi Kazuki, Okumura Nao, Kanamori Kazuyoshi

    MICROPOROUS AND MESOPOROUS MATERIALS   176 巻   頁: 64 - 70   2013年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.micromeso.2013.03.042

    Web of Science

  97. Preparation of a hierarchically porous AlPO<sub>4</sub> monolith via an epoxide-mediated sol-gel process accompanied by phase separation. 査読有り

    Li W, Zhu Y, Guo X, Nakanishi K, Kanamori K, Yang H

    Science and technology of advanced materials   14 巻 ( 4 ) 頁: 045007   2013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)  

    DOI: 10.1088/1468-6996/14/4/045007

    PubMed

  98. New Li2FeSiO4-carbon monoliths with controlled macropores: effects of pore properties on electrode performance. 査読有り

    Hasegawa G, Sannohe M, Ishihara Y, Kanamori K, Nakanishi K, Abe T

    Physical chemistry chemical physics : PCCP   15 巻 ( 22 ) 頁: 8736 - 43   2013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)  

    DOI: 10.1039/c3cp50352f

    PubMed

  99. Fabrication of large-sized silica monolith exceeding 1000 mL with high structural homogeneity 査読有り

    Miyamoto Riichi, Ando Yukiko, Kurusu Chie, Bai Hong-zhi, Nakanishi Kazuki, Ippommatsu Masamichi

    JOURNAL OF SEPARATION SCIENCE   36 巻 ( 12 ) 頁: 1890 - 1896   2013年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/jssc.201300123

    Web of Science

    PubMed

  100. Synthesis of Silver Nanoparticles Confined in Hierarchically Porous Monolithic Silica: A New Function in Aromatic Hydrocarbon Separations 査読有り

    Zhu Yang, Morisato Kei, Li Wenyan, Kanamori Kazuyoshi, Nakanishi Kazuki

    ACS APPLIED MATERIALS & INTERFACES   5 巻 ( 6 ) 頁: 2118 - 2125   2013年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/am303163s

    Web of Science

    PubMed

  101. Macroporous SiO2 Monoliths Prepared via Sol-Gel Process Accompanied by Phase Separation 査読有り

    Guo Xing-Zhong, Li Wen-Yan, Zhu Yang, Nakanishi Kazuki, Kanamori Kazuyoshi, Yang Hui

    ACTA PHYSICO-CHIMICA SINICA   29 巻 ( 3 ) 頁: 646 - 652   2013年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3866/PKU.WHXB201212252

    Web of Science

  102. Facile synthesis of marshmallow-like macroporous gels usable under harsh conditions for the separation of oil and water. 査読有り

    Hayase G, Kanamori K, Fukuchi M, Kaji H, Nakanishi K

    Angewandte Chemie (International ed. in English)   52 巻 ( 7 ) 頁: 1986 - 9   2013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)  

    DOI: 10.1002/anie.201207969

    PubMed

  103. Sol-gel synthesis of zinc ferrite-based xerogel monoliths with well-defined macropores 査読有り

    Kido Yasuki, Nakanishi Kazuki, Kanamori Kazuyoshi

    RSC ADVANCES   3 巻 ( 11 ) 頁: 3661 - 3666   2013年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c3ra22481c

    Web of Science

  104. Erratum: Hierarchically porous monoliths of oxygen-deficient anatase TiO<sub>2-x</sub> with electronic conductivity (RSC Advances (2013) DOI:10.1039/C3RA40545A) 査読有り

    A. Kitada, G. Hasegawa, Y. Kobayashi, K. Miyazaki, T. Abe, K. Kanamori, K. Nakanishi, H. Kageyama

    RSC Advances   3 巻 ( 48 ) 頁: 26475-   2013年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c3ra90142d

  105. Hierarchically Porous Monoliths of Oxygen-deficient Anatase TiO2-x with Electronic Conductivity (vol 3, pg 7205, 2013) 査読有り

    Atsushi Kitada, George Hasegawa, Yoji Kobayashi, Kohei Miyazaki, Takeshi Abe, Kazuyoshi Kanamori, Kazuki Nakanishi, Hiroshi Kageyama

    RSC ADVANCES   3 巻 ( 48 ) 頁: 26475 - 26475   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  

    DOI: 10.1039/c3ra90142d

    Web of Science

  106. Selective preparation of macroporous monoliths of conductive titanium oxides Ti(n)O(2n-1) (n = 2, 3, 4, 6). 査読有り

    Kitada A, Hasegawa G, Kobayashi Y, Kanamori K, Nakanishi K, Kageyama H

    Journal of the American Chemical Society   134 巻 ( 26 ) 頁: 10894 - 8   2012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)  

    DOI: 10.1021/ja302083n

    PubMed

  107. Synthesis of Monolithic Hierarchically Porous Iron-Based Xerogels from Iron(III) Salts via an Epoxide-Mediated Sol-Gel Process 査読有り

    Kido Yasuki, Nakanishi Kazuki, Miyasaka Akira, Kanamori Kazuyoshi

    CHEMISTRY OF MATERIALS   24 巻 ( 11 ) 頁: 2071 - 2077   2012年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/cm300495j

    Web of Science

  108. Development of flexible porous materials from organotrialkoxysilanes 査読有り

    Kazuyoshi Kanamori, Gen Hayase, Kazuki Nakanishi

    Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy   59 巻 ( 6 ) 頁: 320 - 325   2012年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Organosiloxane (RnSiO(4-n)/2) gels can be prepared from organoalkoxysilanes using the sol-gel process. In general,however, formation of uniform networks from these precursors is strongly inhibited due to cyclization reactions. In addition, phase separation of hydrophobic condensates from polar solvent leads to inhomogeneous gels in these systems. A careful control of the hydrolysis and polycondensation reactions is therefore required to obtain a monolithic gel with desired properties. We have been trying to control the sol-gel reactions as well as phase separation in these systems to obtain unique porous materials particularly from methyltrimethoxysilane(MTMS) and dimethyldimethoxysilane (DMDMS). Flexible aerogels and xerogels based on the methylsiloxane networks are discussed.

    DOI: 10.2497/jjspm.59.320

    Scopus

  109. Flower-like surface modification of titania materials by lithium hydroxide solution. 査読有り

    Hasegawa G, Kanamori K, Sugawara Y, Ikuhara Y, Nakanishi K

    Journal of colloid and interface science   374 巻 ( 1 ) 頁: 291 - 6   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)  

    DOI: 10.1016/j.jcis.2012.02.002

    PubMed

  110. New monolithic capillary columns with well-defined macropores based on poly(styrene-co-divinylbenzene). 査読有り

    Hasegawa G, Kanamori K, Ishizuka N, Nakanishi K

    ACS applied materials & interfaces   4 巻 ( 5 ) 頁: 2343 - 7   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)  

    DOI: 10.1021/am300552q

    PubMed

  111. 3官能性/2官能性ケイ素アルコキシド共重合による柔軟多孔性ゲルの作製

    早瀬 元, 金森 主祥, 中西 和樹

    日本セラミックス協会 年会・秋季シンポジウム 講演予稿集   2012 巻 ( 0 ) 頁: 280-280   2012年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    エアロゲルの力学的強度を改善するため、非反応性のメチル基により柔軟性や低い架橋密度を実現した有機-無機ハイブリッドエアロゲルがこれまでに研究されてきた。本研究においては3官能性ケイ素アルコキシドmethyltrimethoxysilane (MTMS) と2官能性アルコキシドdimethyldimethoxysilane (DMDMS) を前駆体、<I>n</I>-hexadecyltrimethylammonium chloride (CTAC) を相分離抑制のための界面活性剤として用い、酢酸と尿素を使った酸性/塩基性触媒による2段階ゾル-ゲル反応でエアロゲルを合成することに成功している。この出発組成を変化させることでエアロゲルの微細構造や結合を制御し、密度・力学特性の変化を調べた。

    DOI: 10.14853/pcersj.2012S.0.280.0

  112. 612 高効率イオン交換反応の実現に向けたバルク型マクロ多孔性層状腹水酸化物の作製(セラミック/ナノ材料の創製,セラミック/ナノ材料の創成と評価,オーガナイスドセッション8)

    徳留 靖明, 樽谷 直紀, 高橋 雅英, 中西 和樹

    学術講演会講演論文集   61 巻   頁: 159-160   2012年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  113. Hierarchically Porous Materials by Phase Separation: Monoliths 査読有り

    Nakanishi Kazuki

    HIERARCHICALLY STRUCTURED POROUS MATERIALS: FROM NANOSCIENCE TO CATALYSIS, SEPARATION, OPTICS, ENERGY, AND LIFE SCIENCE     頁: 241 - 267   2012年

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  114. Hierarchically Structured Porous Materials: Application to Separation Sciences 査読有り

    Nakanishi Kazuki

    HIERARCHICALLY STRUCTURED POROUS MATERIALS: FROM NANOSCIENCE TO CATALYSIS, SEPARATION, OPTICS, ENERGY, AND LIFE SCIENCE     頁: 517 - 529   2012年

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  115. Evolution of Mesopores in Monolithic Macroporous Ethylene-Bridged Polysilsesquioxane Gels Incorporated with Nonionic Surfactant 査読有り

    Mushiake Atsushi, Kanamori Kazuyoshi, Nakanishi Kazuki

    INTERNATIONAL JOURNAL OF POLYMER SCIENCE   2012 巻   2012年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1155/2012/460835

    Web of Science

  116. 2011 Donald R. Ulrich Awards 査読有り

    K. Nakanishi

    Journal of Sol-Gel Science and Technology     頁: 1 - 2   2012年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10971-012-2790-y

  117. マクロ多孔性導電性酸化物Ti<SUB><I>n</I></SUB>O<SUB>2<I>n</I>-1</SUB> (<I>n</I> = 2, 3, 4, 6)モノリス体の選択的作製 査読有り

    北田 敦, 長谷川 丈二, 小林 洋治, 金森 主祥, 中西 和樹, 陰山 洋

    日本セラミックス協会 年会・秋季シンポジウム 講演予稿集   2012 巻 ( 0 ) 頁: 526 - 526   2012年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:公益社団法人 日本セラミックス協会  

    細孔特性の精密な制御が可能な相分離法によって,細孔サイズが一様で,連続したマクロ孔をもつシリカやアルミナ,チタニアなどのマクロ多孔性酸化物モノリス体が得られているが、従来の報告は全て絶縁体であった.我々は相分離法により得られたTiO<SUB>2</SUB>のマクロ多孔性モノリス体に対して,金属ジルコニウムを用いた還元反応を行い,一連の酸素欠損型チタン酸化物Ti<SUB><I>n</I></SUB>O<SUB>2<I>n</I>-1</SUB> (<I>n</I> = 2, 3, 4, 6)のマクロ多孔性モノリス体をそれぞれ単相で作製した.得られた一連の還元体はTiO<SUB>2</SUB>前駆体の孔特性をほぼ完全に維持している.また従来の約半分のバルク密度(1.8 g cm<SUP>-3</SUP>),約3倍の空孔率(60%),そして同等の室温バルク抵抗率(2 × 10<SUP>-2</SUP> Ω cm)を有しており,様々な電極材料としての応用が考えられる.

    DOI: 10.14853/pcersj.2012S.0.526.0

  118. Hierarchically Porous Materials by Phase Separation: Monoliths

    Kazuki Nakanishi

    Hierarchically Structured Porous Materials: From Nanoscience to Catalysis, Separation, Optics, Energy, and Life Science     頁: 241 - 267   2011年11月

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    記述言語:英語   掲載種別:論文集(書籍)内論文   出版者・発行元:Wiley-VCH  

    DOI: 10.1002/9783527639588.ch8

    Scopus

  119. Hierarchically Structured Porous Materials: Application to Separation Sciences

    Kazuki Nakanishi

    Hierarchically Structured Porous Materials: From Nanoscience to Catalysis, Separation, Optics, Energy, and Life Science     頁: 517 - 529   2011年11月

     詳細を見る

    記述言語:英語   掲載種別:論文集(書籍)内論文   出版者・発行元:Wiley-VCH  

    DOI: 10.1002/9783527639588.ch17

    Scopus

  120. New hierarchically porous titania monoliths for chromatographic separation media. 査読有り

    Hasegawa G, Morisato K, Kanamori K, Nakanishi K

    Journal of separation science   34 巻 ( 21 ) 頁: 3004 - 10   2011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)  

    DOI: 10.1002/jssc.201100538

    PubMed

  121. Performance evaluation of long monolithic silica capillary columns in gradient liquid chromatography using peptide mixtures 査読有り

    Eghbali Hamed, Sandra Koen, Detobel Frederik, Lynen Frederic, Nakanishi Kazuki, Sandra Pat, Desmet Gert

    JOURNAL OF CHROMATOGRAPHY A   1218 巻 ( 21 ) 頁: 3360 - 3366   2011年5月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2010.10.045

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  122. Transition from transparent aerogels to hierarchically porous monoliths in polymethylsilsesquioxane sol-gel system. 査読有り

    Kanamori K, Kodera Y, Hayase G, Nakanishi K, Hanada T

    Journal of colloid and interface science   357 巻 ( 2 ) 頁: 336 - 44   2011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)  

    DOI: 10.1016/j.jcis.2011.02.027

    PubMed

  123. Monolithic silica rod columns for high-efficiency reversed-phase liquid chromatography 査読有り

    Miyazaki Shota, Takahashi Masakazu, Ohira Masayoshi, Terashima Hiroyuki, Morisato Kei, Nakanishi Kazuki, Ikegami Tohru, Miyabe Kanji, Tanaka Nobuo

    JOURNAL OF CHROMATOGRAPHY A   1218 巻 ( 15 ) 頁: 1988 - 1994   2011年4月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2010.11.032

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  124. Synthesis of hierarchical macro/mesoporous dicalcium phosphate monolith via epoxide-mediated sol-gel reaction from ionic precursors 査読有り

    Tokudome Yasuaki, Miyasaka Akira, Nakanishi Kazuki, Hanada Teiichi

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   57 巻 ( 3 ) 頁: 269 - 278   2011年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10971-010-2184-y

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  125. Microscopic Characterizations 査読有り

    Haruko Saito, Kazuyoshi Kanamori, Kazuki Nakanishi

    Monolithic Silicas in Separation Science: Concepts, Syntheses, Characterization, Modeling and Applications, First Edition     頁: 81 - 102   2011年1月

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    記述言語:英語   掲載種別:論文集(書籍)内論文   出版者・発行元:Wiley-VCH  

    DOI: 10.1002/9783527633241.ch5

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  126. Synthesis Concepts and Preparation of Silica Monoliths 査読有り

    Kazuki Nakanishi

    Monolithic Silicas in Separation Science: Concepts, Syntheses, Characterization, Modeling and Applications, First Edition     頁: 11 - 33   2011年1月

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    記述言語:英語   掲載種別:論文集(書籍)内論文   出版者・発行元:Wiley-VCH  

    DOI: 10.1002/9783527633241.ch2

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  127. (3-Mercaptopropyl)trimethoxysilane-derived Porous Gel Monolith via Thioacetal Reaction-Assisted Sol-Gel Route

    Ito S., Nishi M., Kanamori K., Nakanishi K., Kurahashi T., Matsubara S., Shimotsuma Y., Miura K., Hirao K.

    3RD INTERNATIONAL CONGRESS ON CERAMICS (ICC): NOVEL CHEMICAL PROCESSING SOL-GEL AND SOLUTION-BASED PROCESSING   18 巻 ( SYMPOSIUM 2A )   2011年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/1757-899X/18/3/032003

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  128. Controlled pore formation in organotrialkoxysilane-derived hybrids: from aerogels to hierarchically porous monoliths 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki

    CHEMICAL SOCIETY REVIEWS   40 巻 ( 2 ) 頁: 754 - 770   2011年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c0cs00068j

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  129. Pore Structure and Mechanical Properties of Poly(methylsilsesquioxane) Aerogels 査読有り

    Kanamori K., Hayase G., Nakanishi K., Hanada T.

    3RD INTERNATIONAL CONGRESS ON CERAMICS (ICC): NOVEL CHEMICAL PROCESSING SOL-GEL AND SOLUTION-BASED PROCESSING   18 巻   2011年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/1757-899X/18/3/032001

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  130. Hierarchically Porous Carbon Monoliths with High Surface Area from Bridged Poly(silsesquioxane) without Thermal Activation Process 査読有り

    G. Hasegawa, K. Kanamori, K. Nakanishi, T. Hanada

    3RD INTERNATIONAL CONGRESS ON CERAMICS (ICC): NOVEL CHEMICAL PROCESSING SOL-GEL AND SOLUTION-BASED PROCESSING   18 巻   2011年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:IOP PUBLISHING LTD  

    Hierarchically porous carbon monoliths with high specific surface areas have been fabricated by removing nano-sized silica phase from carbon/silica composites pyrolyzed from bridged poly(silsesquioxane). This activation method improves the homogeneity between inner and outer parts of the monoliths compared to the conventional thermal activation methods.

    DOI: 10.1088/1757-899X/18/3/032005

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    その他リンク: http://orcid.org/0000-0002-8069-4780

  131. Synthesis of new flexible aerogels from MTMS/DMDMS via ambient pressure drying 査読有り

    Gen Hayase, Kazuyoshi Kanamori, Kazuki Nakanishi, Teiichi Hanada

    IOP Conference Series: Materials Science and Engineering   18 巻   頁: 032013   2011年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)  

    DOI: 10.1088/1757-899X/18/3/032013

  132. Synthesis of new flexible aerogels from di- and trifunctional organosilanes

    Gen Hayase, Kazuyoshi Kanamori, Kazuki Nakanishi, Teiichi Hanada

    Materials Research Society Symposium Proceedings   1306 巻   頁: 68 - 73   2011年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)  

    Recent years, although silica aerogels are expected to be the promising material for energy savings, the lack of mechanical strength prevents from commercial applications such as to low-density thermal insulators. To improve mechanical properties, methyltrimethoxysilane (MTMS) and dimethyldimethoxysilane (DMDMS) are used in this study as the co-precursor of aerogels because the network becomes flexible due to the relatively low cross-linking density and to the unreacted methyl groups. Because of the strong hydrophobicity of MTMS/DMDMS-derived condensates, phase separation occurs in aqueous sol and must be suppressed to obtain uniform and monolithic gel. We employed surfactant n-hexadecyltrimethylammonium chloride (CTAC) in starting compositions to control phase separation during a 2-step acid/base sol-gel reaction. By changing the starting composition, various microstructures of pores are obtained. In the uniaxial compression test, the aerogel showed high flexibility and spring-back to the original shape after removing the stress. © 2011 Materials Research Society.

    DOI: 10.1557/opl.2011.216

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  133. Organosiloxane transparent aerogels and hierarchically porous monoliths

    Yasunori Kodera, Gen Hayase, Kazuyoshi Kanamori, Kazuki Nakanishi, Teiichi Hanada

    Materials Research Society Symposium Proceedings   1306 巻   頁: 54 - 59   2011年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)  

    A transition of porous structures in monolithic poly(methylsilsesquioxane) (PMSQ, CH 3SiO 1.5) gels from uniform mesopores to hierarchical pore structures consisting of macro- and mesopores, has been investigated using a sol-gel system containing surfactant Pluronic F127. A broad variation of porous morphology is controlled by changing the concentration of F127. Sufficient concentrations of F127 inhibit the occurrence of macroscopic phase separation of hydrophobic PMSQ condensates and lead to well-defined mesoporous transparent aerogels with high specific pore volume. Mesopores are developed through microscopic phase separation of PMSQ colloid-surfactant complexes in the solvent. Macroscopic phase separation regulates well-defined macropores in the micrometer range on decreasing concentrations of F127, in which microscopic phase separation concurrently takes place in the PMSQ-rich gelling phase after the onset of macroscopic phase separation. Monolithic PMSQ gels with hierarchical macro- and mesopore structures are consequently obtained. © 2011 Materials Research Society.

    DOI: 10.1557/opl.2011.96

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  134. Macroporous carbon monoliths with large surface area for electric double-layer capacitor

    George Hasegawa, Mami Aoki, Kazuyoshi Kanamori, Kazuki Nakanishi, Teiichi Hanada, Kiyoharu Tadanaga

    Materials Research Society Symposium Proceedings   1304 巻   頁: 38 - 43   2011年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)  

    Macro/meso/microporous carbon monoliths doped with sulfur have been prepared from sulfonated polydivinylbenzene networks followed by the activation with CO 2 resulted in the activated carbon monoliths with high surface area of 2400 m 2 g -1. The monolithic electrode of the activated carbon shows remarkably high specific capacitance (175 F g -1 at 5 mV s -1 and 206 F g -1 at 0.5 A g -1). © 2011 Materials Research Society.

    DOI: 10.1557/opl.2011.604

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  135. In situ SAXS observation on metal-salt-derived alumina sol-gel system accompanied by phase separation. 査読有り

    Tokudome Y, Nakanishi K, Kanamori K, Hanada T

    Journal of colloid and interface science   352 巻 ( 2 ) 頁: 303 - 8   2010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)  

    DOI: 10.1016/j.jcis.2010.08.041

    PubMed

  136. Hierarchically porous carbon monoliths with high surface area from bridged polysilsesquioxanes without thermal activation process. 査読有り

    Hasegawa G, Kanamori K, Nakanishi K, Hanada T

    Chemical communications (Cambridge, England)   46 巻 ( 42 ) 頁: 8037 - 9   2010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)  

    DOI: 10.1039/c0cc02974b

    PubMed

  137. Synthesis of high-silica and low-silica zeolite monoliths with trimodal pores 査読有り

    Tokudome Yasuaki, Nakanishi Kazuki, Kosaka Sho, Kariya Ayuta, Kaji Hironori, Hanada Teiichi

    MICROPOROUS AND MESOPOROUS MATERIALS   132 巻 ( 3 ) 頁: 538 - 542   2010年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.micromeso.2010.04.005

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  138. A new route to monolithic macroporous SiC/C composites from biphenylene-bridged polysilsesquioxane gels

    Hasegawa G.

    Chemistry of Materials   22 巻 ( 8 ) 頁: 2541-2547   2010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)  

    DOI: 10.1021/cm9034616

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  139. Effects of Starting Compositions on the Properties of Methylsilsesquioxane Aerogels 査読有り

    Gen Hayase, Kazuyoshi Kanamori, Kazuki Nakanishi, Teiichi Hanada

    MRS Online Proceedings Library Archive   1247 巻   頁: 1247-C08-17   2010年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)  

  140. Sol-gel synthesis, porous structure, and mechanical property of polymethylsilsesquioxane aerogels 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   117 巻 ( 1372 ) 頁: 1333 - 1338   2009年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2109/jcersj2.117.1333

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  141. ワイドポアモノリスシリカカラムによるネイティブタンパク質の分離性能評価 査読有り

    森坂裕信, 桐野彩, 水口博義, 中西和樹, 植田充美

    Chromatography   30 巻 ( Supplement 2 ) 頁: 42 - 43   2009年10月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    J-GLOBAL

  142. Semi-micro-monolithic columns using macroporous silica rods with improved performance 査読有り

    Morisato Kei, Miyazaki Shota, Ohira Masayoshi, Furuno Masahiro, Nyudo Masahiko, Terashima Hiroyuki, Nakanishi Kazuki

    JOURNAL OF CHROMATOGRAPHY A   1216 巻 ( 44 ) 頁: 7384 - 7387   2009年10月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2009.05.028

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  143. Sol-gel synthesis of macro-mesoporous titania monoliths and their applications to chromatographic separation media for organophosphate compounds 査読有り

    Konishi Junko, Fujita Koji, Nakanishi Kazuki, Hirao Kazuyuki, Morisato Kei, Miyazaki Shota, Ohira Masayoshi

    JOURNAL OF CHROMATOGRAPHY A   1216 巻 ( 44 ) 頁: 7375 - 7383   2009年10月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2009.06.016

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  144. Structural characterization of hierarchically porous alumina aerogel and xerogel monoliths. 査読有り

    Tokudome Y, Nakanishi K, Kanamori K, Fujita K, Akamatsu H, Hanada T

    Journal of colloid and interface science   338 巻 ( 2 ) 頁: 506 - 13   2009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)  

    DOI: 10.1016/j.jcis.2009.06.042

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  145. Performance of wide-pore monolithic silica column in protein separation 査読有り

    Morisaka Hironobu, Kobayashi Kengo, Kirino Aya, Furuno Masahiro, Minakuchi Hiroyoshi, Nakanishi Kazuki, Ueda Mitsuyoshi

    JOURNAL OF SEPARATION SCIENCE   32 巻 ( 15-16 ) 頁: 2747 - 2751   2009年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/jssc.200800653

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  146. Rigid crosslinked polyacrylamide monoliths with well-defined macropores synthesized by living polymerization. 査読有り

    Hasegawa J, Kanamori K, Nakanishi K, Hanada T, Yamago S

    Macromolecular rapid communications   30 巻 ( 12 ) 頁: 986 - 90   2009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)  

    DOI: 10.1002/marc.200900066

    PubMed

  147. Effect of La addition on thermal microstructural evolution of macroporous alumina monolith prepared from ionic precursors 査読有り

    Tokudome Yasuaki, Nakanishi Kazuki, Hanada Teiichi

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   117 巻 ( 1363 ) 頁: 351 - 355   2009年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2109/jcersj2.117.351

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  148. Spinodal decomposition in siloxane sol-gel systems in macroporous media 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi

    SOFT MATTER   5 巻 ( 16 ) 頁: 3106 - 3113   2009年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/b903444g

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  149. Elastic Aerogels and Xerogels Synthesized From Methyltrimethoxysilane (MTMS) 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi

    POLYMER-BASED SMART MATERIALS - PROCESSES, PROPERTIES AND APPLICATION   1134 巻   頁: 173 - +   2009年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  150. Elastic Aerogels and Xerogels Synthesized From Methyltrimethoxysilane (MTMS) 査読有り

    Kazuyoshi Kanamori, Kazuki Nakanishi, Teiichi Hanada

    POLYMER-BASED SMART MATERIALS - PROCESSES, PROPERTIES AND APPLICATION   1134 巻   頁: 173 - +   2009年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:MATERIALS RESEARCH SOC  

    Transparent organic-inorganic hybrid aerogels and aerogel-like xerogels have been prepared from methyltrimethoxysilane (MTMS) respectively by supercritical drying (SCD) and ambient pressure drying (APD). The new aerogels and xerogels significantly deform without collapsing on uniaxial compression and almost fully relax when unloaded. This elastic behavior., termed as "spring-back", allows APD without noticeable shrinkage and cracking. The flexible network composed of lower cross-linking density (up to three bonds per every silicon atom) compared to silica gels (up to four bonds) and repulsion between hydrophobic methyl groups bonded to every silicon atom largely contributes to the pronounced deformability and relaxing, respectively. Lower surface silanol group density also plays a crucial role for the "spring-back" behavior.

    Web of Science

  151. Preparation of Macroporous Poly(divinylbenzene) Gels Via Living Radical Polymerization 査読有り

    Joji Hasegawa, Kazuyoshi Kanamori, Kazuki Nakanishi, Teiichi Hanada, Shigeru Yamago

    POLYMER-BASED SMART MATERIALS - PROCESSES, PROPERTIES AND APPLICATION   1134 巻   頁: 139 - +   2009年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:MATERIALS RESEARCH SOC  

    Macroporous cross-linked polymeric dried gels have been obtained by inducing phase separation in a homogeneous poly(divinylbenzene) (PDVB) network formed by organotellurium-mediated living radical polymerization (TERP). The living polymerization reaction of DVB with the coexistence of a non-reactive polymeric agent, poly(dimethylsiloxane) (PDMS), in solvent 1,3,5-trimethylbenzene (TMB) resulted in polymerization-induced phase separation (spinodal decomposition), and the transient structure of spinodal decomposition has been frozen by gelation. Well-defined macroporous monolithic dried gels with bicontinuous structure in the micrometer scale are obtained after removing PDMS and TMB by simple washing and drying. The properties of the macropores have been controlled by changing starting composition.

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  152. Preparation of Macroporous Poly(divinylbenzene) Gels Via Living Radical Polymerization

    Joji Hasegawa, Kazuyoshi Kanamori, Kazuki Nakanishi, Teiichi Hanada, Shigeru Yamago

    POLYMER-BASED SMART MATERIALS - PROCESSES, PROPERTIES AND APPLICATION   1134 巻   頁: 139 - +   2009年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:MATERIALS RESEARCH SOC  

    Macroporous cross-linked polymeric dried gels have been obtained by inducing phase separation in a homogeneous poly(divinylbenzene) (PDVB) network formed by organotellurium-mediated living radical polymerization (TERP). The living polymerization reaction of DVB with the coexistence of a non-reactive polymeric agent, poly(dimethylsiloxane) (PDMS), in solvent 1,3,5-trimethylbenzene (TMB) resulted in polymerization-induced phase separation (spinodal decomposition), and the transient structure of spinodal decomposition has been frozen by gelation. Well-defined macroporous monolithic dried gels with bicontinuous structure in the micrometer scale are obtained after removing PDMS and TMB by simple washing and drying. The properties of the macropores have been controlled by changing starting composition.

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  153. Examination of mesopore structure of hierarchically macro/mesoporous silica by thermoporometry

    Etsuji Fukui, Keiske Shinohara, Kazuki Nakanishi, Kazuyoshi Kanamori, Teiichi Hanada

    Materials Research Society Symposium Proceedings   1056 巻   頁: 28 - 33   2008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)  

    Thermoporometry was employed to monitor the mesopore evolution in wet, drying and heat-treatment stages of monolithic macro/mesoporous silica with SBA-15 like structure. Direct comparison of mesopores in wet state was only possible with the samples extracted with sulfuric acid. In good agreement with the preceding study, the sulfuric acid not only removed the surfactant but also modified the silica gel network into that with reduced amount of micropores and increased stability against the drying stress. Thermoporometry revealed that the structural evolution takes place completely in the wet condition, which accompanies a decrease in the thickness of non-freezable water. © 2008 Materials Research Society.

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  154. Phase separation in silica sol-gel system containing anionic surfactant

    Taisuke Matsui, Kazuki Nakanishi, Kazuyoshi Kanamori, Teiichi Hanada

    Materials Research Society Symposium Proceedings   1056 巻   頁: 418 - 423   2008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)  

    By inducing phase separation parallel to the sol-gel transition of alkoxy-derived silica systems, silica monoliths with well-defined co-continuous macropores were obtained from the systems containing anionic surfactants.We adopted three kinds of anionic surfactants which differ from each other in the length of alkyl chain (CH3(CH2)i7SO3Na, CH 3(CH2)i5SO3Na, CH3(CH 2)i3SO3Na).Mesopores were also found in the silica skeletons presumably by the supramolecular templating.Characterization of the dried or heat-treated samples was carried out by a scanning electron microscope (SEM) and nitrogen adsorption measurements.Experimental results showed that due to the moderate interaction between silica oligomers and surfactants, most of the surfactants are distributed to the solvent phase which determines the macropore volume.The median size and volume of the macropores could be controlled independently by the starting composition.In the absence of any additive to enhance templating by the surfactant, the samples exhibited only amorphous mesopores. © 2008 Materials Research Society.

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  155. Elastic organic-inorganic hybrid aerogels and xerogels 査読有り

    Kanamori Kazuyoshi, Aizawa Mamoru, Nakanishi Kazuki, Hanada Teiichi

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   48 巻 ( 1-2 ) 頁: 172 - 181   2008年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10971-008-1756-6

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  156. Scattering-based hole burning through volume speckles in a random medium with tunable diffusion constant 査読有り

    Murai Shunsuke, Fujita Koji, Hirao Takayuki, Nakanishi Kazuki, Hirao Kazuyuki, Tanaka Katsuhisa

    APPLIED PHYSICS LETTERS   93 巻 ( 15 )   2008年10月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1063/1.2955830

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  157. Preparation and properties of radiofrequency sputtered X-ray amorphous films in the system SiO2-ZrO2 査読有り

    Sawa Akira, Nakanishi Kazuki, Hanada Teiichi

    THIN SOLID FILMS   516 巻 ( 15 ) 頁: 4665 - 4672   2008年6月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.tsf.2007.08.012

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  158. Preparation of monolithic silica columns for high-performance liquid chromatography 査読有り

    Nunez Oscar, Nakanishi Kazuki, Tanaka Nobuo

    JOURNAL OF CHROMATOGRAPHY A   1191 巻 ( 1-2 ) 頁: 231 - 252   2008年5月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2008.02.029

    Web of Science

    PubMed

  159. Crystalline ZrO2 monoliths with well-defined macropores and mesostructured skeletons prepared by combining the alkoxy-derived sol-gel process accompanied by phase separation and the solvothermal process 査読有り

    Konishi Junko, Fujita Koji, Oiwa Satoshi, Nakanishi Kazuki, Hirao Kazuyuki

    CHEMISTRY OF MATERIALS   20 巻 ( 6 ) 頁: 2165 - 2173   2008年3月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/cm703351d

    Web of Science

  160. Multiscale templating of siloxane gels via polymerization-induced phase separation 査読有り

    Nakanishi Kazuki, Amatani Tomohiko, Yano Seiji, Kodaira Tetsuya

    CHEMISTRY OF MATERIALS   20 巻 ( 3 ) 頁: 1108 - 1115   2008年2月

     詳細を見る

    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/cm702486b

    Web of Science

  161. Cr3+-doped macroporous Al2O3 monoliths prepared by the metal-salt-derived sol-gel method 査読有り

    Fujita Koji, Tokudome Yasuaki, Nakanishi Kazuki, Miura Kiyotaka, Hirao Kazuyuki

    JOURNAL OF NON-CRYSTALLINE SOLIDS   354 巻 ( 2-9 ) 頁: 659 - 664   2008年1月

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jnoncrysol.2007.06.091

    Web of Science

  162. Cr3+-doped macroporous Al2O3 monoliths prepared by the metal-salt-derived sol-gel method 査読有り

    Koji Fujita, Yasuaki Tokudome, Kazuki Nakanishi, Kiyotaka Miura, Kazuyuki Hirao

    JOURNAL OF NON-CRYSTALLINE SOLIDS   354 巻 ( 2-9 ) 頁: 659 - 664   2008年1月

     詳細を見る

    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  

    Cr3+-doped alumina (Al2O3) monoliths with well-defined macropores have been synthesized from the aqueous and ethanolic solution of aluminum and chromium salts in the presence of propylene oxide (PO) and poly(ethylene oxide) (PEO) using the sol-gel method accompanied by phase separation. The addition of PEO to the starting solution induces the phase separation, whereas the introduction of PO controls the gelation. The bicontinuous macroporous structures are obtained by inducing the phase separation parallel to the gelation, and the pore size can be controlled by adjusting the composition of starting solutions. The dried gel and that heat-treated at 700 degrees C are amorphous. As the heat-treatment temperature is increased over 700 degrees C, nanocrystalline gamma-Al2O3 is precipitated at 800 degrees C, a mixture of theta- and (alpha-Al2O3 phases appears at 1100 degrees C, and a single of alpha-Al2O3 is obtained at 1200 degrees C, while keeping the bicontinuous macroporous structure. Cr3+-doped alpha-Al2O3 monoliths with well-defined macropores exhibit photoluminescence as observed for ruby, indicating that Cr3+ ions are homogenously dispersed into the skeletons of bicontinuous network and substitute uniformly for the Al3+ sites. (c) 2007 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.jnonerysol.2007.06.091

    Web of Science

    J-GLOBAL

  163. 22aYE-7 シリカゲル中液体^4Heの音響特性におけるゲル構造の効果(22aYE 多孔体・2次元電子,領域6(金属,超低温,超伝導・密度波))

    大森 光一, 田中 太基, 阿部 聡, 辻井 宏之, 鈴木 治彦, 松本 宏一, 中西 和樹, 金森 主祥

    日本物理学会講演概要集   63 巻 ( 0 )   2008年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.11316/jpsgaiyo.63.2.4.0_709_3

  164. Hierarchically porous oxides, hybrids and polymers via sol-gel accompanied by phase separation 査読有り

    Nakanishi Kazuki

    ORGANIC/INORGANIC HYBRID MATERIALS - 2007   1007 巻   頁: 51 - 62   2008年

     詳細を見る

    掲載種別:研究論文(学術雑誌)  

    Web of Science

  165. Phase separation in alkoxy-derived silica system containing polyacrylamide 査読有り

    Kawamoto Kousuke, Nakanishi Kazuki, Hanada Teiichi

    ORGANIC/INORGANIC HYBRID MATERIALS - 2007   1007 巻   頁: 63 - 68   2008年

     詳細を見る

    掲載種別:研究論文(学術雑誌)  

    Web of Science

  166. Phase separation in Al2O3 sol-gel system incorporated with high molecular weight poly(ethylene oxide) 査読有り

    Tokudome Yasuaki, Nakanishi Kazuki, Fujita Koji, Miura Kiyotaka, Hirao Kazuyuki

    ORGANIC/INORGANIC HYBRID MATERIALS - 2007   1007 巻   頁: 69 - 74   2008年

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  167. Hierarchically porous oxides, hybrids and polymers via sol-gel accompanied by phase separation 査読有り

    Kazuki Nakanishi

    ORGANIC/INORGANIC HYBRID MATERIALS - 2007   1007 巻   頁: 51 - 62   2008年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:MATERIALS RESEARCH SOCIETY  

    In various crosslinking systems containing metal oxides, organo-siloxane polymers and pure hydrocarbons, monolithic materials with hierarchical well-defined macropores and controlled mesopores have been synthesized. Synthetic progress in alkoxy-derived macroporous silica lead to the preparation of long-range ordered mesoporous skeletons in well-defined. macroporous framework. Alkylene-bridged silicon alkoxides can also be prepared into similarly hierarchical porous structures with broadened variations in framework morphology. Macro-mesoporous alkoxy-derived pure titania and zirconia have been prepared using hydrochloric acid - mediated processes. Compared with those prepared from colloidal dispersions, alkoxy-derived macroporous titania exhibited much higher mechanical strength. Titania monolith is a promising candidate as a separation medium to discriminate phosphorylated compounds in a liquid chromatography mode. Pure alumina macroporous monolith has been first synthesized from aluminum salt using propylene glycol as a proton scavenger to thrust the solution pH from acidic into neutral conditions. Alumina-based complex oxides such as garnets and spinels can also be prepared in pure phases. Polymerization and phase separation in organic crosslinker system was also controlled to obtain well-defined co-continuous macro-frameworks instead of those composed of aggregated particles. These examples demonstrate the versatility of using phase-separation in gelling systems to obtain well-defined macroporous structures.

    Web of Science

    Scopus

  168. Phase separation in alkoxy-derived silica system containing polyacrylamide 査読有り

    Kousuke Kawamoto, Kazuki Nakanishi, Teiichi Hanada

    ORGANIC/INORGANIC HYBRID MATERIALS - 2007   1007 巻   頁: 63 - 68   2008年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:MATERIALS RESEARCH SOCIETY  

    By inducing phase separation parallel to the sol-gel transition of alkoxy-derived silica systems, gels having both macroporous and mesoporous structures can be obtained. Using poly(acrylamide) (PAAm) as a phase-separation inducer, macro/mesoporous silica gels were synthesized. After solvent exchange by water, the size distribution of mesopores of wet gels was evaluated by thermoporometry using a differential scanning calorimetry (DSC). Alternatively, gels were evaporation-dried after solvent exchange by ethanol or water/ethanol, followed by heat-treatment to completely remove volatile and organic components. Characterization of the dried or heat-treated samples was carried out using a scanning electron microscope (SEM) and by nitrogen adsorption measurements. Experimental results showed that the interaction between PAAm and silica is not so strong as the case of polymers having poly(oxyethylene) chains. The contribution of the secondary phase separation within the crosslinking silica-rich phase was suggested to be responsible for the mesopore formation in the PAAm-silica system.

    Web of Science

  169. Phase separation in alkoxy-derived silica system containing polyacrylamide 査読有り

    Kousuke Kawamoto, Kazuki Nakanishi, Teiichi Hanada

    ORGANIC/INORGANIC HYBRID MATERIALS - 2007   1007 巻   頁: 63 - 68   2008年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:MATERIALS RESEARCH SOCIETY  

    By inducing phase separation parallel to the sol-gel transition of alkoxy-derived silica systems, gels having both macroporous and mesoporous structures can be obtained. Using poly(acrylamide) (PAAm) as a phase-separation inducer, macro/mesoporous silica gels were synthesized. After solvent exchange by water, the size distribution of mesopores of wet gels was evaluated by thermoporometry using a differential scanning calorimetry (DSC). Alternatively, gels were evaporation-dried after solvent exchange by ethanol or water/ethanol, followed by heat-treatment to completely remove volatile and organic components. Characterization of the dried or heat-treated samples was carried out using a scanning electron microscope (SEM) and by nitrogen adsorption measurements. Experimental results showed that the interaction between PAAm and silica is not so strong as the case of polymers having poly(oxyethylene) chains. The contribution of the secondary phase separation within the crosslinking silica-rich phase was suggested to be responsible for the mesopore formation in the PAAm-silica system.

    Web of Science

    Scopus

  170. Phase separation in Al<sub>2</sub>O<sub>3</sub> sol-gel system incorporated with high molecular weight poly(ethylene oxide) 査読有り

    Y. Tokudome, K. Nakanishi, K. Fujita, K. Miura, K. Hirao

    Materials Research Society Symposium Proceedings   1007 巻   頁: 69 - 74   2008年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  171. Phase separation in Al2O3 sol-gel system incorporated with high molecular weight poly(ethylene oxide) 査読有り

    Yasuaki Tokudome, Kazuki Nakanishi, Koji Fujita, Kiyotaka Miura, Kazuyuki Hirao

    ORGANIC/INORGANIC HYBRID MATERIALS - 2007   1007 巻   頁: 69 - 74   2008年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:MATERIALS RESEARCH SOCIETY  

    Pure alumina monoliths with well-defined macropores and mesostructured skeleton have been synthesized via a spontaneous route from the aqueous and ethanolic solution of aluminum salts in the presence of propylene oxide and high molecular weight poly(ethylene oxide)(PEO). The addition of propylene oxide to the starting solution controls the gelation, while the addition of PEO induces the phase separation. Appropriate choice of the starting composition, with which the phase separation and gelation concur, produces large-dimension (10mmx10mmx10mm), bicontinuous macroporous Al2O3 monoliths. The mean size of the continuously connected pores is controlled in the micrometer range, depending on the PEO concentration and polarity of the solution. On the other hand, micropores and mesopores, originated from the interstices among primary particles, exhibit median pore size of about 2.6 mn and the BET surface area as high as 396 m(2)/g after dried temperature at 40 degrees C.

    Web of Science

  172. Phase separation in Al2O3 sol-gel system incorporated with high molecular weight poly(ethylene oxide) 査読有り

    Yasuaki Tokudome, Kazuki Nakanishi, Koji Fujita, Kiyotaka Miura, Kazuyuki Hirao

    ORGANIC/INORGANIC HYBRID MATERIALS - 2007   1007 巻   頁: 69 - 74   2008年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:MATERIALS RESEARCH SOCIETY  

    Pure alumina monoliths with well-defined macropores and mesostructured skeleton have been synthesized via a spontaneous route from the aqueous and ethanolic solution of aluminum salts in the presence of propylene oxide and high molecular weight poly(ethylene oxide)(PEO). The addition of propylene oxide to the starting solution controls the gelation, while the addition of PEO induces the phase separation. Appropriate choice of the starting composition, with which the phase separation and gelation concur, produces large-dimension (10mmx10mmx10mm), bicontinuous macroporous Al2O3 monoliths. The mean size of the continuously connected pores is controlled in the micrometer range, depending on the PEO concentration and polarity of the solution. On the other hand, micropores and mesopores, originated from the interstices among primary particles, exhibit median pore size of about 2.6 mn and the BET surface area as high as 396 m(2)/g after dried temperature at 40 degrees C.

    Web of Science

    Scopus

  173. Hierarchically porous oxides, hybrids and polymers via sol-gel accompanied by phase separation 査読有り

    Kazuki Nakanishi

    ORGANIC/INORGANIC HYBRID MATERIALS - 2007   1007 巻   頁: 51 - 62   2008年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:MATERIALS RESEARCH SOCIETY  

    In various crosslinking systems containing metal oxides, organo-siloxane polymers and pure hydrocarbons, monolithic materials with hierarchical well-defined macropores and controlled mesopores have been synthesized. Synthetic progress in alkoxy-derived macroporous silica lead to the preparation of long-range ordered mesoporous skeletons in well-defined. macroporous framework. Alkylene-bridged silicon alkoxides can also be prepared into similarly hierarchical porous structures with broadened variations in framework morphology. Macro-mesoporous alkoxy-derived pure titania and zirconia have been prepared using hydrochloric acid - mediated processes. Compared with those prepared from colloidal dispersions, alkoxy-derived macroporous titania exhibited much higher mechanical strength. Titania monolith is a promising candidate as a separation medium to discriminate phosphorylated compounds in a liquid chromatography mode. Pure alumina macroporous monolith has been first synthesized from aluminum salt using propylene glycol as a proton scavenger to thrust the solution pH from acidic into neutral conditions. Alumina-based complex oxides such as garnets and spinels can also be prepared in pure phases. Polymerization and phase separation in organic crosslinker system was also controlled to obtain well-defined co-continuous macro-frameworks instead of those composed of aggregated particles. These examples demonstrate the versatility of using phase-separation in gelling systems to obtain well-defined macroporous structures.

    Web of Science

  174. Sol-gel synthesis of macroporous YAG from ionic precursors via phase separation route 査読有り

    Yasuaki Tokudome, Koji Fujita, Kazuki Nakanishi, Kazuyoshi Kanamori, Kiyotaka Miura, Kazuyuki Hirao, Teiichi Hanada

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   115 巻 ( 1348 ) 頁: 925 - 928   2007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:CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI  

    Yttrium aluminum garnet, Y3Al5O12, (YAG) monoliths with well-defined macropores have been prepared from ionic precursors using the sol-gel method accompanied by phase separation. The addition of propylene oxide to the starting solution controls the gelation, while the addition of poly(ethylene oxide) induces the phase separation. Polymerization-induced phase separation and gelation concur by an appropriate selection of the starting composition, which allows the production of bicontinuous macroporous nanocomposite gels in large dimensions (similar to 10 x 10 x 10 mm(3)). During heat treatment at 800 degrees C, the monolithic nanocomposite gels crystallize into YAG without the formation of any intermediate phases or the precipitation of impurity phases, indicating higher homogeneity of cation distribution in the dried gels. The macroporous YAG network was maintained even after heat treatment at 1000 degrees C for 10 h.

    DOI: 10.2109/jcersj2.115.925

    Web of Science

  175. Sur-face interaction of well-defined, concentrated poly,(2-hydroxyethyl methacrylate) brushes with proteins 査読有り

    Yoshikawa Chiaki, Goto Atsushi, Tsujii Yoshinobu, Ishizuka Norio, Nakanishi Kazuki, Fukuda Takeshi

    JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY   45 巻 ( 21 ) 頁: 4795 - 4803   2007年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/pola.22224

    Web of Science

  176. Real space observation of silica monoliths in the formation process. 査読有り

    Saito H, Kanamori K, Nakanishi K, Hirao K

    Journal of separation science   30 巻 ( 17 ) 頁: 2881 - 7   2007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)  

    DOI: 10.1002/jssc.200700360

    PubMed

  177. Sol-gel with phase separation. Hierarchically porous materials optimized for high-performance liquid chromatography separations 査読有り

    Nakanishi Kazuki, Tanaka Nobuo

    ACCOUNTS OF CHEMICAL RESEARCH   40 巻 ( 9 ) 頁: 863 - 873   2007年9月

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/ar600034p

    Web of Science

    PubMed

  178. Synthesis of monolithic Al2O3 with well-defined macropores and mesostructured skeletons via the sol-gel process accompanied by phase separation 査読有り

    Tokudome Yasuaki, Fujita Koji, Nakanishi Kazuki, Miura Kiyotaka, Hirao Kazuyuki

    CHEMISTRY OF MATERIALS   19 巻 ( 14 ) 頁: 3393 - 3398   2007年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/cm063051p

    Web of Science

  179. New transparent methylsilsesquioxane aerogels and xerogels with improved mechanical properties 査読有り

    Kanamori Kazuyoshi, Aizawa Mamoru, Nakanishi Kazuki, Hanada Teiichi

    ADVANCED MATERIALS   19 巻 ( 12 ) 頁: 1589 - +   2007年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/adma.200602457

    Web of Science

  180. Simple liquid chromatography using monolithic silica rod and capillary 査読有り

    Oi Naobumi, Morisato Kei, Minakuchi Hiroyoshi, Nakanishi Kazuki

    BUNSEKI KAGAKU   56 巻 ( 4 ) 頁: 227 - 229   2007年4月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  181. Temperature-tunable scattering strength based on the phase transition of liquid crystal infiltrated in well-defined macroporous random media 査読有り

    Murai Shunsuke, Fujita Koji, Hirao Takayuki, Nakanishi Kazuki, Hirao Kazuyuki

    OPTICAL MATERIALS   29 巻 ( 8 ) 頁: 949 - 954   2007年4月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.optmat.2005.11.032

    Web of Science

  182. Functional porous materials via sol-gel with phase separation 査読有り

    Nakanishi Kazuki

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   115 巻 ( 1339 ) 頁: 169 - 175   2007年3月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  183. High-throughput protein digestion by trypsin-immobilized monolithic silica with pipette-tip formula 査読有り

    Ota Shigenori, Miyazaki Shota, Matsuoka Hideo, Morisato Kei, Shintani Yukihiro, Nakanishi Kazuki

    JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS   70 巻 ( 1 ) 頁: 57 - 62   2007年2月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jbbm.2006.10.005

    Web of Science

    PubMed

  184. Size-exclusion effect and protein repellency of concentrated polymer brushes prepared by surface-initiated living radical polymerization 査読有り

    Yoshikawa Chiaki, Goto Atsushi, Ishizuka Norio, Nakanishi Kazuki, Kishida Akio, Tsujii Yoshinobit, Fukuda Takeshi

    MACROMOLECULAR SYMPOSIA   248 巻   頁: 189 - 198   2007年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/masy.200750220

    Web of Science

  185. Monolithic TiO2 with controlled multiscale porosity via a template-free sol-gel process accompanied by phase separation 査読有り

    Konishi Junko, Fujita Koji, Nakanishi Kazuki, Hirao Kazuyuki

    CHEMISTRY OF MATERIALS   18 巻 ( 25 ) 頁: 6069 - 6074   2006年12月

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/cm0617485

    Web of Science

  186. Performance of monolithic silica capillary columns with increased phase ratios and small-sized domains. 査読有り

    Hara T, Kobayashi H, Ikegami T, Nakanishi K, Tanaka N

    Analytical chemistry   78 巻 ( 22 ) 頁: 7632 - 42   2006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)  

    DOI: 10.1021/ac060770e

    PubMed

  187. Performance of octadecylsilylated monolithic silica capillary columns of 530 mu m inner diameter in HPLC 査読有り

    Motokawa Masanori, Ohira Masayoshi, Minakuchi Hiroyoshi, Nakanishi Kazuk, Tanaka Nobuo

    JOURNAL OF SEPARATION SCIENCE   29 巻 ( 16 ) 頁: 2471 - 2477   2006年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/jssc.200600335

    Web of Science

    PubMed

  188. Thick silica gel coatings on methylsilsesquioxane monoliths using anisotropic phase separation 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi

    JOURNAL OF SEPARATION SCIENCE   29 巻 ( 16 ) 頁: 2463 - 2470   2006年11月

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/jssc.200600163

    Web of Science

    PubMed

  189. Rigid macroporous poly(divinylbenzene) monoliths with a well-defined bicontinuous morphology prepared by living radical polymerization 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi

    ADVANCED MATERIALS   18 巻 ( 18 ) 頁: 2407 - +   2006年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/adma.200601026

    Web of Science

  190. Morphological control and strong light scattering in macroporous TiO2 monoliths prepared via a colloid-derived sol-gel route 査読有り

    Fujita Koji, Konishi Junko, Nakanishi Kazuki, Hirao Kazuyuki

    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS   7 巻 ( 6 ) 頁: 511 - 518   2006年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.stam.2006.04.014

    Web of Science

  191. High-performance liquid chromatographic enantioseparations on capillary columns containing crosslinked polysaccharide phenylcarbamate derivatives attached to monolithic silica 査読有り

    Chankvetadze Bezhan, Kubota Takateru, Ikai Tomoyuki, Yamamoto Chiyo, Kamigaito Masami, Tanaka Nobuo, Nakanishi Kazuki, Okamoto Yoshio

    JOURNAL OF SEPARATION SCIENCE   29 巻 ( 13 ) 頁: 1988 - 1995   2006年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/jssc.200500388

    Web of Science

    PubMed

  192. Fabrication of Sm2+-doped macroporous aluminosilicate glasses with high alumina content 査読有り

    Hirao Takayuki, Fujita Koji, Murai Shunsuke, Nakanishi Kazuki, Hirao Kazuyuki

    JOURNAL OF NON-CRYSTALLINE SOLIDS   352 巻 ( 23-25 ) 頁: 2553 - 2557   2006年7月

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jnoncrysol.2006.02.101

    Web of Science

  193. Formation of photonic structures in Sm2+-doped aluminosilicate glasses through phase separation 査読有り

    Fujita Koji, Murai Shunsuke, Nakanishi Kazuki, Hirao Kazuyuki

    JOURNAL OF NON-CRYSTALLINE SOLIDS   352 巻 ( 23-25 ) 頁: 2496 - 2500   2006年7月

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jnoncrysol.2006.03.024

    Web of Science

  194. Anisotropic siloxane-based monolith prepared in confined spaces 査読有り

    Suzumura Yoshitaka, Kanamori Kazuyoshi, Nakanishi Kazuki, Hirao Kazuyuki, Yamamichi Junta

    JOURNAL OF CHROMATOGRAPHY A   1119 巻 ( 1-2 ) 頁: 88 - 94   2006年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2006.02.059

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  195. Mutual consistency between simulated and measured pressure drops in silica monoliths based on geometrical parameters obtained by three-dimensional laser scanning confocal microscope observations 査読有り

    Saito Haruko, Nakanishi Kazuki, Hirao Kazuyuki, Jinnai Hiroshi

    JOURNAL OF CHROMATOGRAPHY A   1119 巻 ( 1-2 ) 頁: 95 - 104   2006年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2006.03.087

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  196. Sol-gel process of oxides accompanied by phase separation 査読有り

    Nakanishi Kazuki

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   79 巻 ( 5 ) 頁: 673 - 691   2006年5月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1246/bcsj.79.673

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  197. High-performance liquid chromatographic enantioseparations on capillary columns containing monolithic silica modified with amylose tris(3,5-dimethylphenylcarbamate) 査読有り

    Chankvetadze B, Yamamoto C, Kamigaito M, Tanaka N, Nakanishi K, Okamoto Y

    JOURNAL OF CHROMATOGRAPHY A   1110 巻 ( 1-2 ) 頁: 46 - 52   2006年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2006.01.076

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  198. Phase-separation-induced Titania monoliths with well-derined macropores and mesostructured framework from colloid-derived sol-gel systems 査読有り

    Konishi J, Fujita K, Nakanishi K, Hirao K

    CHEMISTRY OF MATERIALS   18 巻 ( 4 ) 頁: 864 - 866   2006年2月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/cm052155h

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  199. Direct observation of the spatial distribution of samarium ions in alumina-silica macroporous monoliths by laser scanning confocal microscopy 査読有り

    Murai S, Fujita K, Nakanishi K, Hirao K

    JOURNAL OF ALLOYS AND COMPOUNDS   408 巻   頁: 831 - 834   2006年2月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jallcom.2005.01.085

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  200. Basic study of the gelation of dimethacrylate-type crosslinking agents 査読有り

    Aoki H, Hosoya K, Norisuye T, Tanaka N, Tokuda D, Ishizuka N, Nakanishi K

    JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY   44 巻 ( 2 ) 頁: 949 - 958   2006年1月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/pola.21205

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  201. Size exclusion chromatography of standard polystyrenes with a wide range of molecular weight up to 7.45 x 10(6) on monolithic silica capillary columns 査読有り

    Ute Koichi, Yoshida Saori, Kitayama Tatsuki, Bamba Takeshi, Harada Kazuo, Fukusaki Eiichiro, Kobayashi Akio, Ishizuka Norio, Minakuchi Hiroyoshi, Nakanishi Kazuki

    POLYMER JOURNAL   38 巻 ( 11 ) 頁: 1194 - 1197   2006年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1295/polymj.PJ2006079

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  202. Porous methylsiloxane gel thick film for millimeter-wave antenna substrate prepared by gap filling method 査読有り

    Tanaka Takeharu, Kawakami Nobuyuki, Hirano Takayuki, Fukumoto Yoshito, Suzuki Tetsuo, Kanamori Kazuyoshi, Nakanishi Kazuki

    MATERIAL AND DEVICES FOR SMART SYSTEMS II   888 巻   頁: 251 - +   2006年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  203. An application of silica-based monolithic membrane emulsification technique for easy and efficient preparation of uniformly sized polymer particles 査読有り

    Hosoya K, Bendo M, Tanaka N, Watabe Y, Ikegami T, Minakuchi H, Nakanishi K

    MACROMOLECULAR MATERIALS AND ENGINEERING   290 巻 ( 8 ) 頁: 753 - 758   2005年8月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/mame.200500006

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  204. Experimental validation of the tetrahedral skeleton model pressure drop correlation for silica monoliths and the influence of column heterogeneity 査読有り

    Vervoort N, Saito H, Nakanishi K, Desmet G

    ANALYTICAL CHEMISTRY   77 巻 ( 13 ) 頁: 3986 - 3992   2005年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/ac0502798

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  205. Silica monolithic membrane as separation medium - Summable property of different membranes for high-performance liquid chromatographic separation 査読有り

    Hosoya K, Ogata T, Watabe Y, Kubo T, Ikegami T, Tanaka N, Minakuchi H, Nakanishi K

    JOURNAL OF CHROMATOGRAPHY A   1073 巻 ( 1-2 ) 頁: 123 - 126   2005年5月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2004.09.042

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  206. Monolithic periodic mesoporous silica with well-defined macropores 査読有り

    Amatani T, Nakanishi K, Hirao K, Kodaira T

    CHEMISTRY OF MATERIALS   17 巻 ( 8 ) 頁: 2114 - 2119   2005年4月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/cm048091c

    Web of Science

  207. High-performance frontal analysis of the binding of thyroxine enantiomers to human serum albumin 査読有り

    Kimura T, Nakanishi K, Nakagawa T, Shibukawa A, Matsuzaki K

    PHARMACEUTICAL RESEARCH   22 巻 ( 4 ) 頁: 667 - 675   2005年4月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s11095-005-2485-y

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  208. Recent advances in the design of monolithic silica columns: From small to big dimensions. 査読有り

    Cabrera K, Kraus A, Minakuchi H, Nakanishi K

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   229 巻   頁: U144 - U144   2005年3月

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    掲載種別:研究論文(学術雑誌)  

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  209. Insight on structural change in sol-gel-derived silica gel with aging under basic conditions for mesopore control 査読有り

    Takahashi R, Nakanishi K, Soga N

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   33 巻 ( 2 ) 頁: 159 - 167   2005年2月

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    掲載種別:研究論文(学術雑誌)  

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  210. Titania-coated monolithic silica as separation medium for high performance liquid chromatography of phosphorus-containing compounds 査読有り

    Miyazaki S, Miah MY, Morisato K, Shintani Y, Kuroha T, Nakanishi K

    JOURNAL OF SEPARATION SCIENCE   28 巻 ( 1 ) 頁: 39 - 44   2005年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/jssc.200401932

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  211. Formation of photonic structures inSM(2+)-doped aluminosilicate glasses through phase separation 査読有り

    Fujita K, Murai S, Nakanishi K, Hirao K

    Micromachining Technology for Micro-Optics and Nano-Optics III   5720 巻   頁: 261 - 268   2005年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1117/12.590712

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  212. Topical application of ionic polymers affects skin permeability barrier homeostasis 査読有り

    Denda M, Nakanishi K, Kumazawa N

    SKIN PHARMACOLOGY AND PHYSIOLOGY   18 巻 ( 1 ) 頁: 36 - 41   2005年

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1159/000081684

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  213. Fabrication of macroporous TiO2 monoliths for photonic applications 査読有り

    Konishi J, Fujita K, Nakanishi K, Hirao K

    Micromachining Technology for Micro-Optics and Nano-Optics III   5720 巻   頁: 233 - 240   2005年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1117/12.591059

    Web of Science

  214. Monolithic O/I-hybrids with hierarchically ordered meso- and macropores 査読有り

    Nakanishi K, Kobayashi Y, Amatani T, Hirao K, Kodaira T

    ORGANIC/INORGANIC HYBRID MATERIALS-2004   847 巻   頁: 147 - 157   2005年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  215. Hierarchical macro-mesoporous silica monolith 査読有り

    Amatani T, Nakanishi K, Hirao K, Kodaira T

    Organic/Inorganic Hybrid Materials-2004   847 巻   頁: 121 - 126   2005年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  216. Organic-inorganic hybrid poly(silsesquioxane) monoliths with controlled macro- and mesopores 査読有り

    Nakanishi K, Kanamori K

    JOURNAL OF MATERIALS CHEMISTRY   15 巻 ( 35-36 ) 頁: 3776 - 3786   2005年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/b508415f

    Web of Science

  217. Three dimensional structure and liquid transport behavior of siloxane gels with co-continuous macropores 査読有り

    Saito H, Nakanishi K, Hirao K, Jinnai H, Morisato K, Minakuchi H

    ORGANIC/INORGANIC HYBRID MATERIALS-2004   847 巻   頁: 203 - 208   2005年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  218. Strong light scattering in macroporous TiO2 monoliths induced by phase separation 査読有り

    Fujita K, Konishi J, Nakanishi K, Hirao K

    APPLIED PHYSICS LETTERS   85 巻 ( 23 ) 頁: 5595 - 5597   2004年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1063/1.1823596

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  219. Morphology control of phase-separation-induced alumina-silica macroporous gels for rare-earth-doped scattering media 査読有り

    Murai S, Fujita K, Nakanishi K, Hirao K

    JOURNAL OF PHYSICAL CHEMISTRY B   108 巻 ( 43 ) 頁: 16670 - 16676   2004年10月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/jp0481658

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  220. Fabrication of dye-infiltrated macroporous silica for laser amplification 査読有り

    Murai S, Fujita K, Nakanishi K, Hirao K

    JOURNAL OF NON-CRYSTALLINE SOLIDS   345 巻   頁: 438 - 442   2004年10月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jnoncrysol.2004.08.059

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  221. Spontaneous formation of hierarchical macro-mesoporous ethane-silica monolith 査読有り

    Nakanishi K, Kobayashi Y, Amatani T, Hirao K, Kodaira T

    CHEMISTRY OF MATERIALS   16 巻 ( 19 ) 頁: 3652 - 3658   2004年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/cm049320y

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  222. Formation of interconnected macropores in Sm2+-doped silicate glasses through phase separation: Fabrication of photosensitive and dielectrically disordered materials

    Fujita K, Murai S, Ohashi Y, Nakanishi K, Hirao K

    CHEMISTRY LETTERS   33 巻 ( 9 ) 頁: 1120-1121   2004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)  

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  223. Formation of interconnected macropores in Sm<sup>2+</sup>-doped silicate glasses through phase separation: Fabrication of photosensitive and dielectrically disordered materials

    Fujita K.

    Chemistry Letters   33 巻 ( 9 ) 頁: 1120-1121   2004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)  

    DOI: 10.1246/cl.2004.1120

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  224. Tailoring photonic strength in monolithic macroporous silica for random media 査読有り

    Murai S, Fujita K, Nakanishi K, Hirao K

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS   43 巻 ( 8A ) 頁: 5359 - 5364   2004年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1143/JJAP.43.5359

    Web of Science

  225. Development of a monolithic silica extraction tip for the analysis of proteins 査読有り

    Miyazaki S, Morisato K, Ishizuka N, Minakuchi H, Shintani Y, Furuno M, Nakanishi K

    JOURNAL OF CHROMATOGRAPHY A   1043 巻 ( 1 ) 頁: 19 - 25   2004年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.chroma.2004.03.025

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  226. High-performance liquid chromatographic enantioseparations on capillary columns containing monolithic 査読有り

    Chankvetadze B, Yamamoto C, Tanaka N, Nakanishi K, Okamoto Y

    JOURNAL OF SEPARATION SCIENCE   27 巻 ( 10-11 ) 頁: 905 - 911   2004年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/jssc.200401819

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  227. Simple 2D-HPLC using a monolithic silica column for peptide separation 査読有り

    Kimura H, Tanigawa T, Morisaka H, Ikegami T, Hosoya K, Ishizuka N, Minakuchi H, Nakanishi K, Ueda M, Cabrera K, Tanaka N

    JOURNAL OF SEPARATION SCIENCE   27 巻 ( 10-11 ) 頁: 897 - 904   2004年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1002/jssc.200401842

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  228. Structural formation of hybrid siloxane-based polymer monolith in confined spaces. 査読有り

    Kanamori K, Yonezawa H, Nakanishi K, Hirao K, Jinnai H

    Journal of separation science   27 巻 ( 10-11 ) 頁: 874 - 86   2004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)  

    DOI: 10.1002/jssc.200401816

    PubMed

  229. Simple and comprehensive two-dimensional reversed-phase HPLC using monolithic silica columns 査読有り

    Tanaka N, Kimura H, Tokuda D, Hosoya K, Ikegami T, Ishizuka N, Minakuchi H, Nakanishi K, Shintani Y, Furuno M, Cabrera K

    ANALYTICAL CHEMISTRY   76 巻 ( 5 ) 頁: 1273 - 1281   2004年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/ac034925j

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  230. Controlled hierarchical pore structures in ethylene-bridged polysilsesquioxane gels 査読有り

    Kobayashi Y, Nakanishi K, Hirao K

    CONTINUOUS NANOPHASE AND NANOSTRUCTURED MATERIALS   788 巻   頁: 353 - 358   2004年

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    掲載種別:研究論文(学術雑誌)  

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  231. Macroporous silica and alkylene-bridged polysilsesquioxane gels with templated nanopores 査読有り

    Nakanishi K

    CONTINUOUS NANOPHASE AND NANOSTRUCTURED MATERIALS   788 巻   頁: 337 - 346   2004年

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    掲載種別:研究論文(学術雑誌)  

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  232. Macroporous morphology induced by phase separation in sol-gel systems derived from titania colloid 査読有り

    Konishi J, Fujita K, Nakanishi K, Hirao K

    CONTINUOUS NANOPHASE AND NANOSTRUCTURED MATERIALS   788 巻   頁: 391 - 396   2004年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  233. Monolithic silica-based capillary reversed-phase liquid chromatography/electrospray mass spectrometry for plant metabolomics 査読有り

    Tolstikov VV, Lommen A, Nakanishi K, Tanaka N, Fiehn O

    ANALYTICAL CHEMISTRY   75 巻 ( 23 ) 頁: 6737 - 6740   2003年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/ac034716z

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  234. Monolithic silica columns with chemically bonded beta-cyclodextrin as a stationary phase for enantiomer separations of chiral pharmaceuticals 査読有り

    Lubda D, Cabrera K, Nakanishi K, Lindner W

    ANALYTICAL AND BIOANALYTICAL CHEMISTRY   377 巻 ( 5 ) 頁: 892 - 901   2003年11月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s00216-003-2181-x

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  235. Bonelike apatite formation on ethylene-vinyl alcohol copolymer modified with silane coupling agent and calcium silicate solutions 査読有り

    Oyane A, Kawashita M, Nakanishi K, Kokubo T, Minoda M, Miyamoto T, Nakamura T

    BIOMATERIALS   24 巻 ( 10 ) 頁: 1729 - 1735   2003年5月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/S0142-9612(02)00581-1

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  236. Monolithic silica column for in-tube solid-phase microextraction coupled to high-performance liquid chromatography 査読有り

    Shintani Y, Zhou X, Furuno M, Minakuchi H, Nakanishi K

    JOURNAL OF CHROMATOGRAPHY A   985 巻 ( 1-2 ) 頁: 351 - 357   2003年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  237. Monolithic silica column for in-tube solid-phase microextraction coupled to high-performance liquid chromatography. 査読有り

    Shintani Y, Zhou X, Furuno M, Minakuchi H, Nakanishi K

    Journal of chromatography. A   985 巻 ( 1-2 ) 頁: 351 - 7   2003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)  

    DOI: 10.1016/s0021-9673(02)01447-4

    PubMed

  238. Phase separation in sol-gel system containing mixture of 3-and 4-functional alkoxysilanes 査読有り

    Itagaki A, Nakanishi K, Hirao K

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   26 巻 ( 1-3 ) 頁: 153 - 156   2003年1月

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    掲載種別:研究論文(学術雑誌)  

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  239. Supramolecular templating of mesopores in phase-separating silica sol-gels incorporated with cationic surfactant 査読有り

    Nakanishi K, Sato Y, Ruyat Y, Hirao K

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   26 巻 ( 1-3 ) 頁: 567 - 570   2003年1月

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    掲載種別:研究論文(学術雑誌)  

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  240. Monolithic silica columns for high-efficiency chromatographic separations 査読有り

    Tanaka N, Kobayashi H, Ishizuka N, Minakuchi H, Nakanishi K, Hosoya K, Ikegami T

    JOURNAL OF CHROMATOGRAPHY A   965 巻 ( 1-2 ) 頁: 35 - 49   2002年8月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  241. Monolithic silica columns for high-efficiency chromatographic separations. 査読有り

    Tanak N, Kobayashi H, Ishizuka N, Minakuchi H, Nakanishi K, Hosoya K, Ikegami T

    Journal of chromatography. A   965 巻 ( 1-2 ) 頁: 35 - 49   2002年8月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/s0021-9673(01)01582-5

    PubMed

  242. Monolithic silica columns with various skeleton sizes and through-pore sizes for capillary liquid chromatography 査読有り

    Motokawa M, Kobayashi H, Ishizuka N, Minakuchi H, Nakanishi K, Jinnai H, Hosoya K, Ikegami T, Tanaka N

    JOURNAL OF CHROMATOGRAPHY A   961 巻 ( 1 ) 頁: 53 - 63   2002年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  243. Monolithic silica columns with various skeleton sizes and through-pore sizes for capillary liquid chromatography. 査読有り

    Motokawa M, Kobayashi H, Ishizuka N, Minakuchi H, Nakanishi K, Jinnai H, Hosoya K, Ikegami T, Tanaka N

    Journal of chromatography. A   961 巻 ( 1 ) 頁: 53 - 63   2002年6月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/s0021-9673(02)00133-4

    PubMed

  244. Monolithic silica columns for high-efficiency separations by high-performance liquid chromatography 査読有り

    Ishizuka N, Kobayashi H, Minakuchi H, Nakanishi K, Hirao K, Hosoya K, Ikegami T, Tanaka N

    JOURNAL OF CHROMATOGRAPHY A   960 巻 ( 1-2 ) 頁: 85 - 96   2002年6月

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  245. Monolithic silica columns for high-efficiency separations by high-performance liquid chromatography. 査読有り

    Ishizuka N, Kobayashi H, Minakuchi H, Nakanishi K, Hirao K, Hosoya K, Ikegami T, Tanaka N

    Journal of chromatography. A   960 巻 ( 1-2 ) 頁: 85 - 96   2002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)  

    DOI: 10.1016/s0021-9673(01)01580-1

    PubMed

  246. Monolithic HPLC silica columns 査読有り

    Lubda D, Cabrera K, Nakanishi K, Minakuchi H

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   23 巻 ( 2 ) 頁: 185 - 187   2002年2月

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  247. Phase separation in alkylene-bridged polysilsesquioxane sol-gel systems 査読有り

    Nakanishi K, Yamato T, Hirao K

    ORGANIC/INORGANIC HYBRID MATERIALS-2002   726 巻   頁: 291 - 296   2002年

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    掲載種別:研究論文(学術雑誌)  

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  248. Phase separation in sol-gel process of alkoxide-derived silica-zirconia in the presence of polyethylene oxide 査読有り

    Takahashi R, Sato S, Sodesawa T, Suzuki K, Tafu M, Nakanishi K, Soga N

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   84 巻 ( 9 ) 頁: 1968 - 1976   2001年9月

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  249. Chromatographic characterization of macroporous monolithic silica prepared via sol-gel process 査読有り

    Ishizuka N, Minakuchi H, Nakanishi K, Hirao K, Tanaka N

    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS   187 巻   頁: 273 - 279   2001年8月

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    掲載種別:研究論文(学術雑誌)  

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  250. Monolithic LC columns 査読有り

    Tanaka N, Kobayashi H, Nakanishi K, Minakuchi H, Ishizuka N

    ANALYTICAL CHEMISTRY   73 巻 ( 15 ) 頁: 420A - 429A   2001年8月

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  251. About the total performance of monolithic HPLC-columns. 査読有り

    Cabrera K, Minakuchi H, Lubda D, Nakanishi K

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   221 巻   頁: U100 - U100   2001年4月

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  252. Three-dimensional structure of a sintered macroporous silica gel 査読有り

    Jinnai H, Nakanishi K, Nishikawa Y, Yamanaka J, Hashimoto T

    LANGMUIR   17 巻 ( 3 ) 頁: 619 - 625   2001年2月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1021/la000949z

    Web of Science

  253. Macroporous morphology of titania films prepared by sol-gel dip-coating method from a system containing poly(ethylene glycol) and poly(vinylpyrrolidone) 査読有り

    Kajihara K, Nakanishi K

    JOURNAL OF MATERIALS RESEARCH   16 巻 ( 1 ) 頁: 58 - 66   2001年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  254. Macroporous silicate films by dip-coating 査読有り

    Kumon S, Nakanishi K, Hirao K

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   19 巻 ( 1-3 ) 頁: 553 - 557   2000年12月

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  255. Membrane emulsification using sol-gel derived macroporous silica glass 査読有り

    Fuchigami T, Toki M, Nakanishi K

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   19 巻 ( 1-3 ) 頁: 337 - 341   2000年12月

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    掲載種別:研究論文(学術雑誌)  

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  256. Porous gels made by phase separation: Recent progress and future directions 査読有り

    Nakanishi K

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   19 巻 ( 1-3 ) 頁: 65 - 70   2000年12月

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    掲載種別:研究論文(学術雑誌)  

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  257. Preparation of silicalite-1 within macroporous silica glass 査読有り

    Shikata H, Nakanishi K, Hirao K

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   19 巻 ( 1-3 ) 頁: 769 - 773   2000年12月

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    掲載種別:研究論文(学術雑誌)  

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  258. Preparation and chromatographic application of macroporous silicate in a capillary 査読有り

    Ishizuka N, Nakanishi K, Hirao K, Tanaka N

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   19 巻 ( 1-3 ) 頁: 371 - 375   2000年12月

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  259. Performance of a monolithic silica column in a capillary under pressure-driven and electrodriven conditions 査読有り

    Ishizuka N, Minakuchi H, Nakanishi K, Soga N, Nagayama H, Hosoya K, Tanaka N

    ANALYTICAL CHEMISTRY   72 巻 ( 6 ) 頁: 1275 - 1280   2000年3月

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    掲載種別:研究論文(学術雑誌)  

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  260. Formation of hierarchical pore structure in silica gel 査読有り

    Nakanishi K, Takahashi R, Nagakane T, Kitayama K, Koheiya N, Shikata H, Soga N

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   17 巻 ( 3 ) 頁: 191 - 210   2000年3月

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    掲載種別:研究論文(学術雑誌)  

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  261. A new monolithic-type HPLC column for fast separations

    Cabrera K, Lubda D, Eggenweiler HM, Minakuchi H, Nakanishi K

    HRC-JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY   23 巻 ( 1 ) 頁: 93-99   2000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)  

    Web of Science

  262. Monolithic silica columns for HPLC, micro-HPLC, and CEC 査読有り

    Tanaka N, Nagayama H, Kobayashi H, Ikegami T, Hosoya K, Ishizuka N, Minakuchi H, Nakanishi K, Cabrera K, Lubda D

    HRC-JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY   23 巻 ( 1 ) 頁: 111 - 116   2000年1月

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    掲載種別:研究論文(学術雑誌)  

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  263. Tailoring mesopores in monolithic macroporous silica for HPLC 査読有り

    Nakanishi K, Shikata H, Ishizuka N, Koheiya N, Soga N

    HRC-JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY   23 巻 ( 1 ) 頁: 106 - 110   2000年1月

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  264. Aggregation behavior of alkoxide-derived silica in sol-gel process in presence of poly(ethylene oxide) 査読有り

    Takahashi R, Nakanishi K, Soga N

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   17 巻 ( 1 ) 頁: 7 - 18   2000年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  265. Effect of nonionic surfactant on phase separation behavior in methylsiloxane sol-gel systems 査読有り

    Nakanishi K, Miyawaki S, Soga N

    KOBUNSHI RONBUNSHU   57 巻 ( 6 ) 頁: 396 - 401   2000年

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    掲載種別:研究論文(学術雑誌)  

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  266. Apatite formation on ethylene-vinyl alcohol copolymer modified with silane coupling agent and calcium silicate 査読有り

    Oyane A, Minoda M, Miyamoto T, Nakanishi K, Kawashita M, Kokubo T, Nakamura T

    BIOCERAMICS   192-1 巻   頁: 713 - 716   2000年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  267. Apatite formation on ethylene-vinyl alcohol copolymer modified with silanol groups 査読有り

    Oyane A, Minoda M, Miyamoto T, Takahashi R, Nakanishi K, Kim HM, Kokubo T, Nakamura T

    JOURNAL OF BIOMEDICAL MATERIALS RESEARCH   47 巻 ( 3 ) 頁: 367 - 373   1999年12月

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    掲載種別:研究論文(学術雑誌)  

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  268. Sol-gel modification of silicone to induce apatite-forming ability 査読有り

    Oyane A, Nakanishi K, Kim HM, Miyaji F, Kokubo T, Soga N, Nakamura T

    BIOMATERIALS   20 巻 ( 1 ) 頁: 79 - 84   1999年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  269. Performance of an octadecylsilylated continuous porous silica column in polypeptide separations 査読有り

    Minakuchi H, Ishizuka N, Nakanishi K, Soga N, Tanaka N

    JOURNAL OF CHROMATOGRAPHY A   828 巻 ( 1-2 ) 頁: 83 - 90   1998年12月

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    掲載種別:研究論文(学術雑誌)  

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  270. Structural study of mesoporous titania and titanium stearic acid complex prepared from titanium alkoxide 査読有り

    Takahashi R, Takenaka S, Sato S, Sodesawa T, Ogura K, Nakanishi K

    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   94 巻 ( 20 ) 頁: 3161 - 3168   1998年10月

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    掲載種別:研究論文(学術雑誌)  

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  271. Preparation of macroporous titania films by a sol-gel dip-coating method from the system containing poly(ethylene glycol) 査読有り

    Kajihara K, Nakanishi K, Tanaka K, Hirao K, Soga N

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   81 巻 ( 10 ) 頁: 2670 - 2676   1998年10月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  272. Chromatographic properties of miniaturized silica rod columns 査読有り

    Ishizuka N, Minakuchi H, Nakanishi K, Soga N, Hosoya K, Tanaka N

    HRC-JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY   21 巻 ( 8 ) 頁: 477 - 479   1998年8月

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    掲載種別:研究論文(学術雑誌)  

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  273. Morphology control of macroporous silica-zirconia gel based on phase separation 査読有り

    Takahashi R, Nakanishi K, Soga N

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   106 巻 ( 8 ) 頁: 772 - 777   1998年8月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.2109/jcersj.106.772

    Web of Science

  274. Apatite formation on silica gel in simulated body fluid: effects of structural modification with solvent-exchange 査読有り

    Cho SB, Miyaji F, Kokubo T, Nakanishi K, Soga N, Nakamura T

    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE   9 巻 ( 5 ) 頁: 279 - 284   1998年5月

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    掲載種別:研究論文(学術雑誌)  

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  275. Designing double pore structure in alkoxy-derived silica incorporated with nonionic surfactant 査読有り

    Nakanishi K, Nagakane T, Soga N

    JOURNAL OF POROUS MATERIALS   5 巻 ( 2 ) 頁: 103 - 110   1998年5月

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    掲載種別:研究論文(学術雑誌)  

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  276. Designing monolithic double-pore silica for high-speed liquid chromatography 査読有り

    Ishizuka N, Minakuchi H, Nakanishi K, Soga N, Tanaka N

    JOURNAL OF CHROMATOGRAPHY A   797 巻 ( 1-2 ) 頁: 133 - 137   1998年2月

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    掲載種別:研究論文(学術雑誌)  

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  277. Effect of domain size on the performance of octadecylsilylated continuous porous silica columns in reversed-phase liquid chromatography 査読有り

    Minakuchi H, Nakanishi K, Soga N, Ishizuka N, Tanaka N

    JOURNAL OF CHROMATOGRAPHY A   797 巻 ( 1-2 ) 頁: 121 - 131   1998年2月

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    掲載種別:研究論文(学術雑誌)  

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  278. SilicaROD (TM) - A new challenge in fast high-performance liquid chromatography separations 査読有り

    Cabrera K, Wieland G, Lubda D, Nakanishi K, Soga N, Minakuchi H, Unger KK

    TRAC-TRENDS IN ANALYTICAL CHEMISTRY   17 巻 ( 1 ) 頁: 50 - 53   1998年1月

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    掲載種別:研究論文(学術雑誌)  

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  279. Monolithic HPLC column via sol-gel route 査読有り

    Nakanishi K, Minakuchi H, Ishizuka N, Soga N

    SOL-GEL SYNTHESIS AND PROCESSING   95 巻   頁: 139 - 150   1998年

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    掲載種別:研究論文(学術雑誌)  

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  280. Structure design of double-pore silica and its application to HPLC 査読有り

    Nakanishi K, Minakuchi H, Soga N, Tanaka N

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   13 巻 ( 1-3 ) 頁: 163 - 169   1998年

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    掲載種別:研究論文(学術雑誌)  

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  281. Pore Structure Control of Silica Gels Based on Phase Separation 査読有り

    Nakanishi Kazuki

    JOURNAL OF POROUS MATERIALS   4 巻 ( 2 ) 頁: 67 - 112   1997年6月

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    掲載種別:研究論文(学術雑誌)  

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  282. Phase separation in silica sol-gel system containing poly(ethylene oxide) .2. Effects of molecular weight and temperature 査読有り

    Nakanishi K, Soga N

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   70 巻 ( 3 ) 頁: 587 - 592   1997年3月

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    掲載種別:研究論文(学術雑誌)  

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  283. Effect of skeleton size on the performance of octadecylsilylated continuous porous silica columns in reversed-phase liquid chromatography 査読有り

    Minakuchi H, Nakanishi K, Soga N, Ishizuka N, Tanaka N

    JOURNAL OF CHROMATOGRAPHY A   762 巻 ( 1-2 ) 頁: 135 - 146   1997年2月

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    掲載種別:研究論文(学術雑誌)  

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  284. Double pore silica gel monolith applied to liquid chromatography 査読有り

    Nakanishi K, Minakuchi H, Soga N, Tanaka N

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   8 巻 ( 1-3 ) 頁: 547 - 552   1997年

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    掲載種別:研究論文(学術雑誌)  

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  285. Phase separation process of polymer-incorporated silica-zirconia sol-gel system 査読有り

    Takahashi R, Nakanishi K, Soga N

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   8 巻 ( 1-3 ) 頁: 71 - 76   1997年

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    掲載種別:研究論文(学術雑誌)  

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  286. Apatite-forming ability of silicate ion dissolved from silica gels 査読有り

    Cho SB, Miyaji F, Kokubo T, Nakanishi K, Soga N, Nakamura T

    JOURNAL OF BIOMEDICAL MATERIALS RESEARCH   32 巻 ( 3 ) 頁: 375 - 381   1996年11月

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    掲載種別:研究論文(学術雑誌)  

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  287. Octadecylsilylated porous silica rods as separation media for reversed-phase liquid chromatography 査読有り

    Minakuchi H, Nakanishi K, Soga N, Ishizuka N, Tanaka N

    ANALYTICAL CHEMISTRY   68 巻 ( 19 ) 頁: 3498 - 3501   1996年10月

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    掲載種別:研究論文(学術雑誌)  

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  288. Apatite formation on various silica gels in a simulated body fluid containing excessive calcium ion 査読有り

    Cho SB, Miyaji F, Kokubo T, Nakanishi K, Soga N, Nakamura T

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   104 巻 ( 5 ) 頁: 399 - 404   1996年5月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.2109/jcersj.104.399

    Web of Science

  289. Apatite formation on silica gel in simulated body fluid: Its dependence on structures of silica gels prepared in different media 査読有り

    Cho SB, Nakanishi K, Kokubo T, Soga N, Ohtsuki C, Nakamura T

    JOURNAL OF BIOMEDICAL MATERIALS RESEARCH   33 巻 ( 3 ) 頁: 145 - 151   1996年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  290. EFFECTS OF AGING AND SOLVENT EXCHANGE ON PORE STRUCTURE OF SILICA-GELS WITH INTERCONNECTED MACROPORES 査読有り

    TAKAHASHI R, NAKANISHI K, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   189 巻 ( 1-2 ) 頁: 66 - 76   1995年8月

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    掲載種別:研究論文(学術雑誌)  

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  291. DEPENDENCE OF APATITE FORMATION ON SILICA-GEL ON ITS STRUCTURE - EFFECT OF HEAT-TREATMENT 査読有り

    CHO SB, NAKANISHI K, KOKUBO T, SOGA N, OHTSUKI C, NAKAMURA T, KITSUGI T, YAMAMURO T

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   78 巻 ( 7 ) 頁: 1769 - 1774   1995年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  292. Formation of porous gel morphology by phase separation in gelling alkoxy-derived silica. Phenomenological study

    Kaji H.

    Journal of Non-Crystalline Solids   185 巻 ( 1-2 ) 頁: 18-30   1995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)  

    DOI: 10.1016/0022-3093(94)00670-9

    Scopus

  293. FORMATION OF POROUS GEL MORPHOLOGY BY PHASE-SEPARATION IN GELLING ALKOXY-DERIVED SILICA - PHENOMENOLOGICAL STUDY

    KAJI H, NAKANISHI K, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   185 巻 ( 1-2 ) 頁: 18-30   1995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)  

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  294. Formation of porous gel morphology by phase separation in gelling alkoxy-derived silica. Affinity between silica polymers and solvent.

    Kaji H.

    Journal of Non-Crystalline Solids   181 巻 ( 1-2 ) 頁: 16-26   1995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)  

    DOI: 10.1016/0022-3093(94)00417-L

    Scopus

  295. FORMATION OF POROUS GEL MORPHOLOGY BY PHASE-SEPARATION IN GELLING ALKOXY-DERIVED SILICA - AFFINITY BETWEEN SILICA POLYMERS AND SOLVENT

    KAJI H, NAKANISHI K, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   181 巻 ( 1-2 ) 頁: 16-26   1995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)  

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  296. Small-angle X-Ray scattering study of nanopore evolution of macroporous silica gel by solvent exchange 査読有り

    Takahashi R, Nakanishi K, Soga N

    FARADAY DISCUSSIONS   101 巻   頁: 249 - 263   1995年

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    掲載種別:研究論文(学術雑誌)  

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  297. PHASE-SEPARATION IN SILICA SOL-GEL SYSTEM CONTAINING POLY(ETHYLENE OXIDE) .1. PHASE RELATION AND GEL MORPHOLOGY 査読有り

    NAKANISHI K, KOMURA H, TAKAHASHI R, SOGA N

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   67 巻 ( 5 ) 頁: 1327 - 1335   1994年5月

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    掲載種別:研究論文(学術雑誌)  

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  298. In Situ Observation of Phase Separation Processes in Gelling Alkoxy-Derived Silica System by Light Scattering Method 査読有り

    Kaji Hironori, Nakanishi Kazuki, Soga Naohiro, Inoue Tadashi, Nemoto Norio

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   3 巻 ( 3 ) 頁: 169 - 188   1994年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  299. Phase Separation Kinetics in Silica Sol-Gel System Containing Polyethylene Oxide. I. Initial Stage 査読有り

    Nakanishi Kazuki, Yamasaki Yuki, Kaji Hironori, Soga Naohiro, Inoue Tadashi, Nemoto Norio

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   2 巻 ( 1-3 ) 頁: 227 - 231   1994年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

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  300. THE ROLE OF HYDRATED SILICA, TITANIA, AND ALUMINA IN INDUCING APATITE ON IMPLANTS 査読有り

    LI PJ, OHTSUKI C, KOKUBO T, NAKANISHI K, SOGA N, DEGROOT K

    JOURNAL OF BIOMEDICAL MATERIALS RESEARCH   28 巻 ( 1 ) 頁: 7 - 15   1994年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  301. Dependence of bone-like apatite formation on structure of silica gel 査読有り

    Kokubo T, Cho SB, Nakanishi K, Soga N, Ohtsuki C, Kitsugi T, Yamamuro T, Nakamura T

    BIOCERAMICS, VOL 7     頁: 49 - 54   1994年

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  302. INDUCTION AND MORPHOLOGY OF HYDROXYAPATITE, PRECIPITATED FROM METASTABLE SIMULATED BODY-FLUIDS ON SOL-GEL PREPARED SILICA 査読有り

    LI PJ, NAKANISHI K, KOKUBO T, DEGROOT K

    BIOMATERIALS   14 巻 ( 13 ) 頁: 963 - 968   1993年10月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  303. PROCESS OF FORMATION OF BONE-LIKE APATITE LAYER ON SILICA-GEL 査読有り

    LI P, OHTSUKI C, KOKUBO T, NAKANISHI K, SOGA N, NAKAMURA T, YAMAMURO T

    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE   4 巻 ( 2 ) 頁: 127 - 131   1993年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  304. Polymerization-Induced Phase Separation in Silica Sol-Gel Systems Containing Formamide 査読有り

    Kaji Hironori, Nakanishi Kazuki, Soga Naohiro

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   1 巻 ( 1 ) 頁: 35 - 46   1993年1月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  305. MACROPORE STRUCTURE DESIGN OF SOL-GEL DERIVED SILICA BY SPINODAL DECOMPOSITION 査読有り

    NAKANISHI K, KAJI H, SOGA N

    POROUS MATERIALS   31 巻   頁: 51 - 60   1993年

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  306. EFFECTS OF IONS IN AQUEOUS-MEDIA ON HYDROXYAPATITE INDUCTION BY SILICA-GEL AND ITS RELEVANCE TO BIOACTIVITY OF BIOACTIVE GLASSES AND GLASS-CERAMICS 査読有り

    LI P, OHTSUKI C, KOKUBO T, NAKANISHI K, SOGA N, NAKAMURA T, YAMAMURO T

    JOURNAL OF APPLIED BIOMATERIALS   4 巻 ( 3 ) 頁: 221 - 229   1993年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  307. DUAL-POROSITY SILICA-GELS BY POLYMER-INCORPORATED SOL-GEL PROCESS 査読有り

    NAKANISHI K, TAKAHASHI R, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   147 巻   頁: 291 - 295   1992年10月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  308. APATITE FORMATION INDUCED BY SILICA-GEL IN A SIMULATED BODY-FLUID 査読有り

    LI PJ, OHTSUKI C, KOKUBO T, NAKANISHI K, SOGA N, NAKAMURA T, YAMAMURO T

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   75 巻 ( 8 ) 頁: 2094 - 2097   1992年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  309. MODIFICATION OF NANOMETER RANGE PORES IN SILICA-GELS WITH INTERCONNECTED MACROPORES BY SOLVENT EXCHANGE 査読有り

    KAJI H, NAKANISHI K, SOGA N, HORII F

    JOURNAL OF NON-CRYSTALLINE SOLIDS   145 巻 ( 1-3 ) 頁: 80 - 84   1992年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  310. PHASE-SEPARATION IN SILICA SOL-GEL SYSTEM CONTAINING POLYACRYLIC-ACID .3. EFFECT OF CATALYTIC CONDITION 査読有り

    NAKANISHI K, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   142 巻 ( 1-2 ) 頁: 36 - 44   1992年4月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  311. SMALL-ANGLE X-RAY-SCATTERING STUDY OF GELLING SILICA ORGANIC POLYMER-SOLUTION - SYSTEMS CONTAINING POLY(SODIUM STYRENE-SULFONATE) 査読有り

    NAKANISHI K, SOGA N, MATSUOKA H, ISE N

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   75 巻 ( 4 ) 頁: 971 - 975   1992年4月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  312. PHASE-SEPARATION IN SILICA SOL-GEL SYSTEM CONTAINING POLYACRYLIC-ACID .4. EFFECT OF CHEMICAL ADDITIVES 査読有り

    NAKANISHI K, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   142 巻 ( 1-2 ) 頁: 45 - 54   1992年4月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  313. PHASE-SEPARATION IN SILICA SOL-GEL SYSTEM CONTAINING POLYACRYLIC-ACID .1. GEL FORMATION BEHAVIOR AND EFFECT OF SOLVENT COMPOSITION 査読有り

    NAKANISHI K, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   139 巻 ( 1 ) 頁: 1 - 13   1992年1月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  314. PHASE-SEPARATION IN SILICA SOL-GEL SYSTEM CONTAINING POLYACRYLIC-ACID .2. EFFECTS OF MOLECULAR-WEIGHT AND TEMPERATURE 査読有り

    NAKANISHI K, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   139 巻 ( 1 ) 頁: 14 - 24   1992年1月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  315. MACROPORE MORPHOLOGY CONTROL OF SILICA-GEL BY SPINODAL DECOMPOSITION 査読有り

    NAKANISHI K, SOGA N

    CHEMICAL PROCESSING OF ADVANCED MATERIALS     頁: 29 - 41   1992年

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  316. PHASE-SEPARATION IN GELLING SILICA ORGANIC POLYMER-SOLUTION - SYSTEMS CONTAINING POLY(SODIUM STYRENESULFONATE) 査読有り

    NAKANISHI K, SOGA N

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   74 巻 ( 10 ) 頁: 2518 - 2530   1991年10月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  317. PORE SURFACE CHARACTERISTICS OF MACROPOROUS SILICA-GELS PREPARED FROM POLYMER-CONTAINING SOLUTION 査読有り

    NAKANISHI K, SAGAWA Y, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   134 巻 ( 1-2 ) 頁: 39 - 46   1991年9月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  318. SMALL-ANGLE X-RAY-SCATTERING STUDY ON SOL-GEL TRANSITION OF MIXTURES OF COLLOIDAL SILICA AND ORGANIC POLYMER 査読有り

    MATSUOKA H, CHEN S, ISHII H, ISE N, NAKANISHI K, SOGA N

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   64 巻 ( 4 ) 頁: 1283 - 1288   1991年

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  319. EFFECT OF STRESS ON WATER CORROSION OF BORATE GLASS 査読有り

    SOGA N, ZHANG ZY, NAKANISHI K, HIRAO K

    JOURNAL OF NON-CRYSTALLINE SOLIDS   112 巻 ( 1-3 ) 頁: 377 - 380   1989年10月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  320. CRYSTALLIZATION OF SILICA-GELS CONTAINING SODIUM POLY-4-STYRENE SULFONATE 査読有り

    NAKANISHI K, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   108 巻 ( 2 ) 頁: 157 - 162   1989年3月

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  321. THE EFFECT OF TWO-DIMENSIONAL COMPRESSIVE STRESS ON THE DISSOLUTION RATE OF GLASS IN WATER 査読有り

    ZHANG Z, NAKANISHI K, HIRAO K, SOGA N

    NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU RONBUNSHI-JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   97 巻 ( 3 ) 頁: 365 - 369   1989年

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    掲載種別:研究論文(学術雑誌)  

    Web of Science

  322. ADSORPTION OF ALCOHOL VAPORS ON ALKOXIDE-DERIVED SILICA-GELS 査読有り

    NAKANISHI K, SOGA N

    JOURNAL OF NON-CRYSTALLINE SOLIDS   100 巻 ( 1-3 ) 頁: 399-403   1988年3月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  323. SORPTION OF ALCOHOL VAPORS IN A DISUBSTITUTED POLYACETYLENE 査読有り

    NAKANISHI K, ODANI H, KURATA M, MASUDA T, HIGASHIMURA T

    POLYMER JOURNAL   19 巻 ( 2 ) 頁: 293 - 296   1987年

     詳細を見る

    掲載種別:研究論文(学術雑誌)  

    Web of Science

  324. PERMEATION OF GASES IN POLY[1-(TRIMETHYLSILYL)-1-PROPYNE] 査読有り

    SHIMOMURA H, NAKANISHI K, ODANI H, KURATA M, MASUDA T, HIGASHIMURA T

    KOBUNSHI RONBUNSHU   43 巻 ( 11 ) 頁: 747 - 753   1986年

     詳細を見る

    掲載種別:研究論文(学術雑誌)  

    Web of Science

▼全件表示

書籍等出版物 4

  1. Macroporous morphology control by phase separation

    Nakanishi K.( 担当: 共著)

    Handbook of Sol-Gel Science and Technology: Processing, Characterization and Applications  2018年7月  ( ISBN:9783319320991

     詳細を見る

    記述言語:日本語 著書種別:学術書

    Polymerization-induced phase separation has been utilized to control the macroporous morphology of sol-gel derived materials in a variety of compositions including oxides and phosphates. Monolithic gels with well-defined co-continuous macropores and solid skeletons can be prepared from precursors such as metal alkoxides, organically modified organosilanes, and salts of various metals. The volume and size of macropores can be precisely controlled with sharp distributions by the starting compositions and reaction conditions. Additional tailoring of the micro-mesopores within micrometer-sized gel skeletons is possible either by supramolecular templating or appropriate post-gelation treatments represented by a solvothermal aging. The hierarchically porous monoliths thus obtained can be applied to various liquid-solid contact devices such as separation media for liquid chromatography.

    DOI: 10.1007/978-3-319-32101-1_25

    Scopus

  2. Porosity measurement

    Nakanishi K.( 担当: 共著)

    Handbook of Sol-Gel Science and Technology: Processing, Characterization and Applications  2018年7月  ( ISBN:9783319320991

     詳細を見る

    記述言語:日本語 著書種別:学術書

    Methods of determining porosity of solid materials are described. Since the spectrum of pore size spreads from sub-nanometers to millimeters, appropriate methods should be adopted to adequately determine the volume and size of the pores contained in the solid materials. Representative methods including liquid intrusion and gas adsorption are concisely explained assuming the samples are obtained via sol-gel routes. Recent direct method of determining the three-dimensional configurations of pores and solid parts will also be introduced.

    DOI: 10.1007/978-3-319-32101-1_38

    Scopus

  3. Monolithic porous silica for high-speed HPLC

    Nakanishi K.( 担当: 共著)

    Handbook of Sol-Gel Science and Technology: Processing, Characterization and Applications  2018年7月  ( ISBN:9783319320991

     詳細を見る

    記述言語:日本語 著書種別:学術書

    As one of the successful applications of hierarchically porous monolithic silica, HPLC column without particle-packed structure is briefly introduced. With a progress of manufacturing technology over 20 years of development, highly efficient column structure can be fabricated in various column thickness; besides the traditional analytical column dimension of 4.6 mmID, semi-micro (1-2 mmID) and capillary (<0.5 mmID) formats are now available. Especially in the capillary format, elongated columns can separate very complex biochemical mixtures coupled with mass spectrometric detectors.

    DOI: 10.1007/978-3-319-32101-1_54

    Scopus

  4. Hierarchically Structured Porous Materials. From Nanoscience to Catalysis, Optics, and Energy

    K. Nakanishi( 担当: 共著)

    Wiley-VCH  2011年11月 

     詳細を見る

    記述言語:英語 著書種別:学術書

MISC 199

  1. Sol-gel preparation of hierarchically porous magnesium aluminate (MgAl2O4) spinel monoliths for dye adsorption

    Guo Xingzhong, Yin Pengan, Kanamori Kazuyoshi, Nakanishi Kazuki, Yang Hui  

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY88 巻 ( 1 ) 頁: 114-128   2018年10月

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    記述言語:英語   掲載種別:速報,短報,研究ノート等(学術雑誌)  

    DOI: 10.1007/s10971-018-4781-0

    Web of Science

  2. On-line Redox Derivatization Liquid Chromatography Using a Carbon Monolithic Column

    Miyashita Ken, Tanaka Ryo, Hasegawa George, Nakanishi Kazuki, Morioka Kazuhiro, Zeng Hulie, Kato Shungo, Uchiyama Katsumi, Saitoh Kazunori, Shibukawa Masami, Nakajima Hizuru  

    BUNSEKI KAGAKU67 巻 ( 8 ) 頁: 469-478   2018年8月

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    記述言語:英語  

    Web of Science

  3. Superflexible Multifunctional Polyvinylpolydimethylsiloxane-Based Aerogels as Efficient Absorbents, Thermal Superinsulators, and Strain Sensors

    Zu Guoqing, Kanamori Kazuyoshi, Maeno Ayaka, Kaji Hironori, Nakanishi Kazuki  

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION57 巻 ( 31 ) 頁: 9722-9727   2018年7月

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    記述言語:英語  

    DOI: 10.1002/anie.201804559

    Web of Science

  4. Synthesis of a hierarchically porous niobium phosphate monolith by a sol-gel method for fructose dehydration to 5-hydroxymethylfurfural

    Gao Da-Ming, Zhao Bohan, Liu Haichao, Morisato Kei, Kanamori Kazuyoshi, He Zhiyong, Zeng Maomao, Wu Huaping, Chen Jie, Nakanishi Kazuki  

    CATALYSIS SCIENCE & TECHNOLOGY8 巻 ( 14 ) 頁: 3675-3685   2018年7月

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    記述言語:英語  

    DOI: 10.1039/c8cy00803e

    Web of Science

  5. Comprehensive studies on phosphoric acid treatment of porous titania toward titanium phosphate and pyrophosphate monoliths with pore hierarchy and a nanostructured pore surface

    Zhu Yang, Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki  

    INORGANIC CHEMISTRY FRONTIERS5 巻 ( 6 ) 頁: 1397-1404   2018年6月

     詳細を見る

    記述言語:英語  

    DOI: 10.1039/c8qi00146d

    Web of Science

  6. Iron(III) oxyhydroxide and oxide monoliths with controlled multiscale porosity: synthesis and their adsorption performance

    Hara Yosuke, Kanamori Kazuyoshi, Morisato Kei, Miyamoto Riichi, Nakanishi Kazuki  

    JOURNAL OF MATERIALS CHEMISTRY A6 巻 ( 19 ) 頁: 9041-9048   2018年5月

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    記述言語:英語  

    DOI: 10.1039/c8ta01691g

    Web of Science

  7. Versatile Double-Cross-Linking Approach to Transparent, Machinable, Supercompressible, Highly Bendable Aerogel Thermal Superinsulators

    Zu Guoqing, Kanamori Kazuyoshi, Shimizu Taiyo, Zhu Yang, Maeno Ayaka, Kaji Hironori, Nakanishi Kazuki, Shen Jun  

    CHEMISTRY OF MATERIALS30 巻 ( 8 ) 頁: 2759-2770   2018年4月

     詳細を見る

  8. 先生のための『発展』ケイ酸とケイ酸塩の化学―シロキサン結合をもつ分子・粒子・ゲル―

    中西和樹  

    化学と教育66 巻 ( 1 ) 頁: 26‐29   2018年1月

     詳細を見る

    記述言語:日本語  

    J-GLOBAL

  9. Transparent, Superflexible Doubly Cross-Linked Polyvinylpolymethylsiloxane Aerogel Superinsulators via Ambient Pressure Drying 査読有り

    Zu Guoqing, Shimizu Taiyo, Kanamori Kazuyoshi, Zhu Yang, Maeno Ayaka, Kaji Hironori, Shen Jun, Nakanishi Kazuki  

    ACS NANO12 巻 ( 1 ) 頁: 521-532   2018年1月

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    記述言語:英語  

    DOI: 10.1021/acsnano.7b07117

    Web of Science

  10. Synthesis and characterization of monolithic ZnAl2O4 spinel with well-defined hierarchical pore structures via a sol-gel route 査読有り

    Guo Xingzhong, Yin Pengan, Lei Wei, Yang Hui, Kanamori Kazuyoshi, Nakanishi Kazuki  

    JOURNAL OF ALLOYS AND COMPOUNDS727 巻   頁: 763-770   2017年12月

     詳細を見る

  11. Polymer-assisted shapeable synthesis of porous frameworks consisting of silica nanoparticles with mechanical property tuning 査読有り

    Sato Kanako, Ishii Kanji, Oaki Yuya, Nakanishi Kazuki, Imai Hiroaki  

    POLYMER JOURNAL49 巻 ( 12 ) 頁: 825-830   2017年12月

     詳細を見る

    記述言語:英語  

    DOI: 10.1038/pj.2017.62

    Web of Science

  12. Synthesis, Reduction, and Electrical Properties of Macroporous Monolithic Mayenite Electrides with High Porosity 査読有り

    Wang Rui, Yang Hui, Lu Yunhao, Kanamori Kazuyoshi, Nakanishi Kazuki, Guo Xingzhong  

    ACS OMEGA2 巻 ( 11 ) 頁: 8148-8155   2017年11月

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    記述言語:英語  

    DOI: 10.1021/acsomega.7b01121

    Web of Science

  13. Ultralow-Density, Transparent, Superamphiphobic Boehmite Nanofiber Aerogels and Their Alumina Derivatives (vol 27, pg 3, 2015) 査読有り

    Hayase Gen D, Nonomura Kazuya, Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki  

    CHEMISTRY OF MATERIALS29 巻 ( 12 ) 頁: 5413-5413   2017年6月

     詳細を見る

  14. Fabrication of hydrophobic polymethylsilsesquioxane aerogels by a surfactant-free method using alkoxysilane with ionic group 査読有り

    Hayase Gen, Nagayama Shuya, Nonomura Kazuya, Kanamori Kazuyoshi, Maeno Ayaka, Kaji Hironori, Nakanishi Kazuki  

    JOURNAL OF ASIAN CERAMIC SOCIETIES5 巻 ( 2 ) 頁: 104-108   2017年6月

     詳細を見る

    記述言語:英語  

    DOI: 10.1016/j.jascer.2017.02.003

    Web of Science

  15. Functionalization of hierarchically porous silica monoliths with polyethyleneimine (PEI) for CO2 adsorption 査読有り

    Guo Xingzhong, Ding Li, Kanamori Kazuyoshi, Nakanishi Kazuki, Yang Hui  

    MICROPOROUS AND MESOPOROUS MATERIALS245 巻   頁: 51-57   2017年6月

     詳細を見る

  16. Transparent Ethenylene-Bridged Polymethylsiloxane Aerogels: Mechanical Flexibility and Strength and Availability for Addition Reaction 査読有り

    Shimizu Taiyo, Kanamori Kazuyoshi, Maeno Ayaka, Kaji Hironori, Doherty Cara M., Nakanishi Kazuki  

    LANGMUIR33 巻 ( 18 ) 頁: 4543-4550   2017年5月

     詳細を見る

    記述言語:英語  

    DOI: 10.1021/acs.langmuir.7b00434

    Web of Science

  17. Silicone-Based Organic-Inorganic Hybrid Aerogels and Xerogels 査読有り

    Shimizu Taiyo, Kanamori Kazuyoshi, Nakanishi Kazuki  

    CHEMISTRY-A EUROPEAN JOURNAL23 巻 ( 22 ) 頁: 5176-5187   2017年4月

     詳細を見る

    記述言語:英語  

    DOI: 10.1002/chem.201603680

    Web of Science

  18. Transparent polyvinylsilsesquioxane aerogels: investigations on synthetic parameters and surface modification 査読有り

    Shimizu Taiyo, Kanamori Kazuyoshi, Nakanishi Kazuki  

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY82 巻 ( 1 ) 頁: 2-14   2017年4月

     詳細を見る

    記述言語:英語  

    DOI: 10.1007/s10971-017-4339-6

    Web of Science

  19. Highly Flexible Hybrid Polymer Aerogels and Xerogels Based on Resorcinol-Formaldehyde with Enhanced Elastic Stiffness and Recoverability: Insights into the Origin of Their Mechanical Properties 査読有り

    Hasegawa George, Shimizu Taiyo, Kanamori Kazuyoshi, Maeno Ayaka, Kaji Hironori, Nakanishi Kazuki  

    CHEMISTRY OF MATERIALS29 巻 ( 5 ) 頁: 2122-2134   2017年3月

     詳細を見る

  20. Grafted Polymethylhydrosiloxane on Hierarchically Porous Silica Monoliths: A New Path to Monolith-Supported Palladium Nanoparticles for Continuous Flow Catalysis Applications 査読有り

    Pelisson Carl-Hugo, Nakanishi Takahiro, Zhu Yang, Morisato Kei, Kamei Toshiyuki, Maeno Ayaka, Kaji Hironori, Muroyama Shunki, Tafu Masamoto, Kanamori Kazuyoshi, Shimada Toyoshi, Nakanishi Kazuki  

    ACS APPLIED MATERIALS & INTERFACES9 巻 ( 1 ) 頁: 406-412   2017年1月

     詳細を見る

    記述言語:英語  

    DOI: 10.1021/acsami.6b12653

    Web of Science

  21. Low-density, transparent aerogels and xerogels based on hexylene-bridged polysilsesquioxane with bendability 査読有り

    Aoki Yosuke, Shimizu Taiyo, Kanamori Kazuyoshi, Maeno Ayaka, Kaji Hironori, Nakanishi Kazuki  

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY81 巻 ( 1 ) 頁: 42-51   2017年1月

     詳細を見る

    記述言語:英語  

    DOI: 10.1007/s10971-016-4077-1

    Web of Science

  22. Edaravone, a Synthetic Free Radical Scavenger, Enhances Alteplase-Mediated Thrombiolysis 査読有り

    Kikuchi Kiyoshi, Setoyama Kentaro, Kawahara Ko-ichi, Nagasato Tomoka, Terashi Takuto, Ueda Koki, Nakanishi Kazuki, Otsuka Shotaro, Miura Naoki, Sameshima Hisayo, Hosokawa Kazuya, Harada Yoichiro, Shrestha Binita, Yamamoto Mika, Morimoto-Yamashita Yoko, Kikuchi Haruna, Kiyama Ryoji, Kamikokuryo Chinatsu, Tancharoen Salunya, Sakakima Harutoshi, Morioka Motohiro, Tanaka Eiichiro, Ito Takashi, Maruyama Ikuro  

    OXIDATIVE MEDICINE AND CELLULAR LONGEVITY2017 巻   2017年

     詳細を見る

    記述言語:英語  

    DOI: 10.1155/2017/6873281

    Web of Science

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    MICROPOROUS AND MESOPOROUS MATERIALS225 巻   頁: 122-127   2016年5月

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  41. High-performance liquid chromatography separation of unsaturated organic compounds by a monolithic silica column embedded with silver nanoparticles 査読有り

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  46. Efficiency of short, small-diameter columns for reversed-phase liquid chromatography under practical operating conditions

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  47. Ultralow-Density, Transparent, Superamphiphobic Boehmite Nanofiber Aerogels and Their Alumina Derivatives 査読有り

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  48. Hierarchically Porous Li4Ti5O12 Anode Materials for Li- and Na-Ion Batteries: Effects of Nanoarchitectural Design and Temperature Dependence of the Rate Capability 査読有り

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  53. Synthesis of robust hierarchically porous zirconium phosphate monolith for efficient ion adsorption 査読有り

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  56. Preparation of silver nanoparticles embedded hierarchically porous AlPO4 monoliths 査読有り

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    NEW JOURNAL OF CHEMISTRY39 巻 ( 8 ) 頁: 6238-6243   2015年

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  57. Direct preparation and conversion of copper hydroxide-based monolithic xerogels with hierarchical pores 査読有り

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    DOI: 10.1039/c5nj00479a

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  58. Facile preparation of silver nanoparticles homogeneously immobilized in hierarchically monolithic silica using ethylene glycol as reductant 査読有り

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  59. Surface Functionalization of Silica by Si-H Activation of Hydrosilanes 査読有り

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  60. Experimental and numerical validation of the effective medium theory for the B-term band broadening in 1st and 2nd generation monolithic silica columns 査読有り

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  61. Polymethylsilsesquioxane-Cellulose Nanofiber Biocomposite Aerogels with High Thermal Insulation, Bendability, and Superhydrophobicity 査読有り

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  62. Fabrication of nitrogen-doped TiO2 monolith with well-defined macroporous and bicrystalline framework and its photocatalytic performance under visible light 査読有り

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  63. Preparation of macroporous cordierite monoliths via the sol-gel process accompanied by phase separation 査読有り

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  64. Preparation and characterization of macroporous TiO2-SrTiO3 heterostructured monolithic photocatalyst 査読有り

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  65. Detailed characterization of the kinetic performance of first and second generation silica monolithic columns for reversed-phase chromatography separations 査読有り

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  66. Reduction on reactive pore surfaces as a versatile approach to synthesize monolith-supported metal alloy nanoparticles and their catalytic applications 査読有り

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  67. Layered double hydroxide composite monoliths with three-dimensional hierarchical channels: structural control and adsorption behavior 査読有り

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  68. Porous chromium-based ceramic monoliths: oxides (Cr2O3), nitrides (CrN), and carbides (Cr3C2) 査読有り

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  69. A new hierarchically porous Pd@HSQ monolithic catalyst for Mizoroki-Heck cross-coupling reactions 査読有り

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    NEW JOURNAL OF CHEMISTRY38 巻 ( 3 ) 頁: 1144-1149   2014年

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  70. Synthesis and electrochemical performance of hierarchically porous N-doped TiO2 for Li-ion batteries 査読有り

    Hasegawa George, Sato Tatsuya, Kanamori Kazuyoshi, Nakanishi Kazuki, Abe Takeshi  

    NEW JOURNAL OF CHEMISTRY38 巻 ( 4 ) 頁: 1380-1384   2014年

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  71. Pore structure control of macroporous methylsilsesquioxane monoliths prepared by in situ two-step processing 査読有り

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    DOI: 10.1007/s10934-013-9733-z

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  72. A Superamphiphobic Macroporous Silicone Monolith with Marshmallow-like Flexibility 査読有り

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    DOI: 10.1002/anie.201304169

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  73. Recyclable Functionalization of Silica with Alcohols via Dehydrogenative Addition on Hydrogen Silsesquioxane 査読有り

    Moitra Nirmalya, Kamei Toshiyuki, Kanamori Kazuyoshi, Nakanishi Kazuki, Takeda Kazuyuki, Shimada Toyoshi  

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    DOI: 10.1021/la402205j

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  74. Hierarchically Porous Monoliths Based on N-Doped Reduced Titanium Oxides and Their Electric and Electrochemical Properties 査読有り

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    CHEMISTRY OF MATERIALS25 巻 ( 17 ) 頁: 3504-3512   2013年9月

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    DOI: 10.1021/cm401933a

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  75. Sol-gel synthesis of macroporous TiO2 from ionic precursors via phase separation route 査読有り

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    DOI: 10.1007/s10971-013-3123-5

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  76. Preparation of mullite monoliths with well-defined macropores and mesostructured skeletons via the sol-gel process accompanied by phase separation 査読有り

    Guo Xingzhong, Li Wenyan, Nakanishi Kazuki, Kanamori Kazuyoshi, Zhu Yang, Yang Hui  

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  77. Preparation of a hierarchically porous AlPO4 monolith via an epoxide-mediated sol-gel process accompanied by phase separation 査読有り

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    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS14 巻 ( 4 )   2013年8月

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  78. Hierarchically porous nickel/carbon composite monoliths prepared by sol-gel method from an ionic precursor 査読有り

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    MICROPOROUS AND MESOPOROUS MATERIALS176 巻   頁: 64-70   2013年8月

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  79. Synthesis of Hierarchically Porous Hydrogen Silsesquioxane Monoliths and Embedding of Metal Nanoparticles by On-Site Reduction 査読有り

    Moitra Nirmalya, Kanamori Kazuyoshi, Shimada Toyoshi, Takeda Kazuyuki, Ikuhara Yumi H., Gao Xiang, Nakanishi Kazuki  

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  80. Fabrication of large-sized silica monolith exceeding 1000 mL with high structural homogeneity 査読有り

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    JOURNAL OF SEPARATION SCIENCE36 巻 ( 12 ) 頁: 1890-1896   2013年6月

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  81. Synthesis of Silver Nanoparticles Confined in Hierarchically Porous Monolithic Silica: A New Function in Aromatic Hydrocarbon Separations 査読有り

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    ACS APPLIED MATERIALS & INTERFACES5 巻 ( 6 ) 頁: 2118-2125   2013年3月

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  82. Macroporous SiO2 Monoliths Prepared via Sol-Gel Process Accompanied by Phase Separation 査読有り

    Guo Xing-Zhong, Li Wen-Yan, Zhu Yang, Nakanishi Kazuki, Kanamori Kazuyoshi, Yang Hui  

    ACTA PHYSICO-CHIMICA SINICA29 巻 ( 3 ) 頁: 646-652   2013年3月

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  83. Hierarchically Porous Monoliths of Oxygen-deficient Anatase TiO2-x with Electronic Conductivity (vol 3, pg 7205, 2013) 査読有り

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    RSC ADVANCES3 巻 ( 48 ) 頁: 26475-26475   2013年

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  84. Facile Synthesis of Marshmallow-like Macroporous Gels Usable under Harsh Conditions for the Separation of Oil and Water 査読有り

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    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION52 巻 ( 7 ) 頁: 1986-1989   2013年

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  85. Sol-gel synthesis of zinc ferrite-based xerogel monoliths with well-defined macropores 査読有り

    Kido Yasuki, Nakanishi Kazuki, Kanamori Kazuyoshi  

    RSC ADVANCES3 巻 ( 11 ) 頁: 3661-3666   2013年

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    DOI: 10.1039/c3ra22481c

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  86. New Li2FeSiO4-carbon monoliths with controlled macropores: effects of pore properties on electrode performance 査読有り

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    PHYSICAL CHEMISTRY CHEMICAL PHYSICS15 巻 ( 22 ) 頁: 8736-8743   2013年

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    DOI: 10.1039/c3cp50352f

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  87. Hierarchically porous monoliths of oxygen-deficient anatase TiO2-x with electronic conductivity 査読有り

    Kitada Atsushi, Hasegawa George, Kobayashi Yoji, Miyazaki Kohei, Abe Takeshi, Kanamori Kazuyoshi, Nakanishi Kazuki, Kageyama Hiroshi  

    RSC ADVANCES3 巻 ( 20 ) 頁: 7205-7208   2013年

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    DOI: 10.1039/c3ra40545a

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  88. Layered double hydroxide (LDH)-based monolith with interconnected hierarchical channels: enhanced sorption affinity for anionic species 査読有り

    Tokudome Yasuaki, Tarutani Naoki, Nakanishi Kazuki, Takahashi Masahide  

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    DOI: 10.1039/c3ta11110e

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  89. New Insights into the Relationship between Micropore Properties, Ionic Sizes, and Electric Double-Layer Capacitance in Monolithic Carbon Electrodes 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki, Abe Takeshi  

    JOURNAL OF PHYSICAL CHEMISTRY C116 巻 ( 50 ) 頁: 26197-26203   2012年12月

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    DOI: 10.1021/jp309010p

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  90. Structure and properties of polymethylsilsesquioxane aerogels synthesized with surfactant n-hexadecyltrimethylammonium chloride 査読有り

    Hayase Gen, Kanamori Kazuyoshi, Nakanishi Kazuki  

    MICROPOROUS AND MESOPOROUS MATERIALS158 巻   頁: 247-252   2012年8月

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  91. Selective Preparation of Macroporous Monoliths of Conductive Titanium Oxides TinO2n-1 (n=2, 3, 4, 6) 査読有り

    Kitada Atsushi, Hasegawa George, Kobayashi Yoji, Kanamori Kazuyoshi, Nakanishi Kazuki, Kageyama Hiroshi  

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY134 巻 ( 26 ) 頁: 10894-10898   2012年7月

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    DOI: 10.1021/ja302083n

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  92. Synthesis of Monolithic Hierarchically Porous Iron-Based Xerogels from Iron(III) Salts via an Epoxide-Mediated Sol-Gel Process 査読有り

    Kido Yasuki, Nakanishi Kazuki, Miyasaka Akira, Kanamori Kazuyoshi  

    CHEMISTRY OF MATERIALS24 巻 ( 11 ) 頁: 2071-2077   2012年6月

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    DOI: 10.1021/cm300495j

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  93. Facile preparation of macroporous graphitized carbon monoliths from iron-containing resorcinol-formaldehyde gels 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki  

    MATERIALS LETTERS76 巻   頁: 1-4   2012年6月

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    DOI: 10.1016/j.matlet.2012.02.069

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  94. Pore properties of hierarchically porous carbon monoliths with high surface area obtained from bridged polysilsesquioxanes 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki  

    MICROPOROUS AND MESOPOROUS MATERIALS155 巻   頁: 265-273   2012年6月

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  95. Flower-like surface modification of titania materials by lithium hydroxide solution 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Sugawara Yoshihiro, Ikuhara Yuichi, Nakanishi Kazuki  

    JOURNAL OF COLLOID AND INTERFACE SCIENCE374 巻   頁: 291-296   2012年5月

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    DOI: 10.1016/j.jcis.2012.02.002

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  96. New Monolithic Capillary Columns with Well-Defined Macropores Based on Poly(styrene-co-divinylbenzene) 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Ishizuka Norio, Nakanishi Kazuki  

    ACS APPLIED MATERIALS & INTERFACES4 巻 ( 5 ) 頁: 2343-2347   2012年5月

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    DOI: 10.1021/am300552q

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  97. Hierarchically Porous Materials by Phase Separation: Monoliths

    Nakanishi Kazuki  

    HIERARCHICALLY STRUCTURED POROUS MATERIALS: FROM NANOSCIENCE TO CATALYSIS, SEPARATION, OPTICS, ENERGY, AND LIFE SCIENCE   頁: 241-267   2012年

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  98. Hierarchically Structured Porous Materials: Application to Separation Sciences 査読有り

    Nakanishi Kazuki  

    HIERARCHICALLY STRUCTURED POROUS MATERIALS: FROM NANOSCIENCE TO CATALYSIS, SEPARATION, OPTICS, ENERGY, AND LIFE SCIENCE   頁: 517-529   2012年

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  99. Evolution of Mesopores in Monolithic Macroporous Ethylene-Bridged Polysilsesquioxane Gels Incorporated with Nonionic Surfactant 査読有り

    Mushiake Atsushi, Kanamori Kazuyoshi, Nakanishi Kazuki  

    INTERNATIONAL JOURNAL OF POLYMER SCIENCE   2012年

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    DOI: 10.1155/2012/460835

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  100. Role of block copolymer surfactant on the pore formation in methylsilsesquioxane aerogel systems 査読有り

    Kurahashi Masayuki, Kanamori Kazuyoshi, Takeda Kazuyuki, Kaji Hironori, Nakanishi Kazuki  

    RSC ADVANCES2 巻 ( 18 ) 頁: 7166-7173   2012年

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    DOI: 10.1039/c2ra20799k

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  101. Facile Preparation of Monolithic LiFePO4/Carbon Composites with Well-Defined Macropores for a Lithium-Ion Battery 査読有り

    Hasegawa George, Ishihara Yuya, Kanamori Kazuyoshi, Miyazaki Kohei, Yamada Yuki, Nakanishi Kazuki, Abe Takeshi  

    CHEMISTRY OF MATERIALS23 巻 ( 23 ) 頁: 5208-5216   2011年12月

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    DOI: 10.1021/cm2021438

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  102. New hierarchically porous titania monoliths for chromatographic separation media 査読有り

    Hasegawa George, Morisato Kei, Kanamori Kazuyoshi, Nakanishi Kazuki  

    JOURNAL OF SEPARATION SCIENCE34 巻 ( 21 ) 頁: 3004-3010   2011年11月

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    DOI: 10.1002/jssc.201100538

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  103. Preparation of Hierarchically Porous Nanocrystalline CaTiO3, SrTiO3 and BaTiO3 Perovskite Monoliths 査読有り

    Ruzimuradov Olim, Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki  

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY94 巻 ( 10 ) 頁: 3335-3339   2011年10月

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  104. Fabrication of highly crosslinked methacrylate-based polymer monoliths with well-defined macropores via living radical polymerization 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki, Yamago Shigeru  

    POLYMER52 巻 ( 21 ) 頁: 4644-4647   2011年9月

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  105. Facile preparation of monolithic magnesium titanates with hierarchical porosity 査読有り

    Ruzimuradov Olim N., Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki  

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN119 巻 ( 1390 ) 頁: 440-444   2011年6月

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    DOI: 10.2109/jcersj2.119.440

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  106. Performance evaluation of long monolithic silica capillary columns in gradient liquid chromatography using peptide mixtures 査読有り

    Eghbali Hamed, Sandra Koen, Detobel Frederik, Lynen Frederic, Nakanishi Kazuki, Sandra Pat, Desmet Gert  

    JOURNAL OF CHROMATOGRAPHY A1218 巻 ( 21 ) 頁: 3360-3366   2011年5月

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    DOI: 10.1016/j.chroma.2010.10.045

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  107. Transition from transparent aerogels to hierarchically porous monoliths in polymethylsilsesquioxane sol-gel system 査読有り

    Kanamori Kazuyoshi, Kodera Yasunori, Hayase Gen, Nakanishi Kazuki, Hanada Teiichi  

    JOURNAL OF COLLOID AND INTERFACE SCIENCE357 巻 ( 2 ) 頁: 336-344   2011年5月

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    DOI: 10.1016/j.jcis.2011.02.027

    Web of Science

  108. Monolithic silica rod columns for high-efficiency reversed-phase liquid chromatography 査読有り

    Miyazaki Shota, Takahashi Masakazu, Ohira Masayoshi, Terashima Hiroyuki, Morisato Kei, Nakanishi Kazuki, Ikegami Tohru, Miyabe Kanji, Tanaka Nobuo  

    JOURNAL OF CHROMATOGRAPHY A1218 巻 ( 15 ) 頁: 1988-1994   2011年4月

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    DOI: 10.1016/j.chroma.2010.11.032

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  109. Synthesis of hierarchical macro/mesoporous dicalcium phosphate monolith via epoxide-mediated sol-gel reaction from ionic precursors 査読有り

    Tokudome Yasuaki, Miyasaka Akira, Nakanishi Kazuki, Hanada Teiichi  

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY57 巻 ( 3 ) 頁: 269-278   2011年3月

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    DOI: 10.1007/s10971-010-2184-y

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  110. New flexible aerogels and xerogels derived from methyltrimethoxysilane/dimethyldimethoxysilane co-precursors 査読有り

    Hayase Gen, Kanamori Kazuyoshi, Nakanishi Kazuki  

    JOURNAL OF MATERIALS CHEMISTRY21 巻 ( 43 ) 頁: 17077-17079   2011年

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    DOI: 10.1039/c1jm13664j

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  111. Controlled pore formation in organotrialkoxysilane-derived hybrids: from aerogels to hierarchically porous monoliths 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki  

    CHEMICAL SOCIETY REVIEWS40 巻 ( 2 ) 頁: 754-770   2011年

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    DOI: 10.1039/c0cs00068j

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  112. Monolithic electrode for electric double-layer capacitors based on macro/meso/microporous S-Containing activated carbon with high surface area 査読有り

    Hasegawa George, Aoki Mami, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi, Tadanaga Kiyoharu  

    JOURNAL OF MATERIALS CHEMISTRY21 巻 ( 7 ) 頁: 2060-2063   2011年

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    DOI: 10.1039/c0jm03793a

    Web of Science

  113. In situ SAXS observation on metal-salt-derived alumina sol-gel system accompanied by phase separation 査読有り

    Tokudome Yasuaki, Nakanishi Kazuki, Kanamori Kazuyoshi, Hanada Teiichi  

    JOURNAL OF COLLOID AND INTERFACE SCIENCE352 巻 ( 2 ) 頁: 303-308   2010年12月

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    DOI: 10.1016/j.jcis.2010.08.041

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  114. Facile Preparation of Hierarchically Porous TiO2 Monoliths 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi  

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY93 巻 ( 10 ) 頁: 3110-3115   2010年10月

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  115. Synthesis of high-silica and low-silica zeolite monoliths with trimodal pores 査読有り

    Tokudome Yasuaki, Nakanishi Kazuki, Kosaka Sho, Kariya Ayuta, Kaji Hironori, Hanada Teiichi  

    MICROPOROUS AND MESOPOROUS MATERIALS132 巻 ( 3 ) 頁: 538-542   2010年8月

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  116. Sol-gel preparation of Ni/TiO2 catalysts with bimodal pore structures 査読有り

    Numata Masayuki, Takahashi Ryoji, Yamada Ikuya, Nakanishi Kazuki, Sato Satoshi  

    APPLIED CATALYSIS A-GENERAL383 巻 ( 1-2 ) 頁: 66-72   2010年7月

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    DOI: 10.1016/j.apcata.2010.05.025

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  117. Fabrication of activated carbons with well-defined macropores derived from sulfonated poly(divinylbenzene) networks 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi  

    CARBON48 巻 ( 6 ) 頁: 1757-1766   2010年5月

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    DOI: 10.1016/j.carbon.2010.01.019

    Web of Science

  118. Facile preparation of transparent monolithic titania gels utilizing a chelating ligand and mineral salts 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi  

    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY53 巻 ( 1 ) 頁: 59-66   2010年1月

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    記述言語:英語  

    DOI: 10.1007/s10971-009-2056-5

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  119. Hierarchically porous carbon monoliths with high surface area from bridged polysilsesquioxanes without thermal activation process 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi  

    CHEMICAL COMMUNICATIONS46 巻 ( 42 ) 頁: 8037-8039   2010年

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    DOI: 10.1039/c0cc02974b

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  120. Macro- and microporous carbon monoliths with high surface areas pyrolyzed from poly(divinylbenzene) networks 査読有り

    Hasegawa Joji, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi  

    COMPTES RENDUS CHIMIE13 巻 ( 1-2 ) 頁: 207-211   2010年

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    記述言語:英語  

    DOI: 10.1016/j.crci.2009.04.003

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  121. Sol-gel synthesis, porous structure, and mechanical property of polymethylsilsesquioxane aerogels 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi  

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN117 巻 ( 1372 ) 頁: 1333-1338   2009年12月

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    記述言語:英語  

    DOI: 10.2109/jcersj2.117.1333

    Web of Science

  122. Semi-micro-monolithic columns using macroporous silica rods with improved performance

    Morisato Kei, Miyazaki Shota, Ohira Masayoshi, Furuno Masahiro, Nyudo Masahiko, Terashima Hiroyuki, Nakanishi Kazuki  

    JOURNAL OF CHROMATOGRAPHY A1216 巻 ( 44 ) 頁: 7384-7387   2009年10月

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    記述言語:英語  

    DOI: 10.1016/j.chroma.2009.05.028

    Web of Science

  123. Sol-gel synthesis of macro-mesoporous titania monoliths and their applications to chromatographic separation media for organophosphate compounds 査読有り

    Konishi Junko, Fujita Koji, Nakanishi Kazuki, Hirao Kazuyuki, Morisato Kei, Miyazaki Shota, Ohira Masayoshi  

    JOURNAL OF CHROMATOGRAPHY A1216 巻 ( 44 ) 頁: 7375-7383   2009年10月

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    記述言語:英語  

    DOI: 10.1016/j.chroma.2009.06.016

    Web of Science

  124. Structural characterization of hierarchically porous alumina aerogel and xerogel monoliths 査読有り

    Tokudome Yasuaki, Nakanishi Kazuki, Kanamori Kazuyoshi, Fujita Koji, Akamatsu Hirofumi, Hanada Teiichi  

    JOURNAL OF COLLOID AND INTERFACE SCIENCE338 巻 ( 2 ) 頁: 506-513   2009年10月

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    記述言語:英語  

    DOI: 10.1016/j.jcis.2009.06.042

    Web of Science

  125. Performance of wide-pore monolithic silica column in protein separation 査読有り

    Morisaka Hironobu, Kobayashi Kengo, Kirino Aya, Furuno Masahiro, Minakuchi Hiroyoshi, Nakanishi Kazuki, Ueda Mitsuyoshi  

    JOURNAL OF SEPARATION SCIENCE32 巻 ( 15-16 ) 頁: 2747-2751   2009年8月

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    記述言語:英語  

    DOI: 10.1002/jssc.200800653

    Web of Science

  126. Rigid Crosslinked Polyacrylamide Monoliths with Well-Defined Macropores Synthesized by Living Polymerization 査読有り

    Hasegawa Joji, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi, Yamago Shigeru  

    MACROMOLECULAR RAPID COMMUNICATIONS30 巻 ( 12 ) 頁: 986-990   2009年6月

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    記述言語:英語  

    DOI: 10.1002/marc.200900066

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  127. Effect of La addition on thermal microstructural evolution of macroporous alumina monolith prepared from ionic precursors 査読有り

    Tokudome Yasuaki, Nakanishi Kazuki, Hanada Teiichi  

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN117 巻 ( 1363 ) 頁: 351-355   2009年3月

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    記述言語:英語  

    DOI: 10.2109/jcersj2.117.351

    Web of Science

  128. Pore Formation in Poly(divinylbenzene) Networks Derived from Organotellurium-Mediated Living Radical Polymerization 査読有り

    Hasegawa Joji, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi, Yamago Shigeru  

    MACROMOLECULES42 巻 ( 4 ) 頁: 1270-1277   2009年2月

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    記述言語:英語  

    DOI: 10.1021/ma802343a

    Web of Science

  129. Elastic Aerogels and Xerogels Synthesized From Methyltrimethoxysilane (MTMS) 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi  

    POLYMER-BASED SMART MATERIALS - PROCESSES, PROPERTIES AND APPLICATION1134 巻   頁: 173-+   2009年

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    Web of Science

  130. Preparation of Macroporous Poly(divinylbenzene) Gels Via Living Radical Polymerization 査読有り

    Hasegawa Joji, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi, Yamago Shigeru  

    POLYMER-BASED SMART MATERIALS - PROCESSES, PROPERTIES AND APPLICATION1134 巻   頁: 139-+   2009年

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    Web of Science

  131. Fabrication of macroporous silicon carbide ceramics by intramolecular carbothermal reduction of phenyl-bridged polysilsesquioxane 査読有り

    Hasegawa George, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi  

    JOURNAL OF MATERIALS CHEMISTRY19 巻 ( 41 ) 頁: 7716-7720   2009年

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    記述言語:英語  

    DOI: 10.1039/b913992c

    Web of Science

  132. Spinodal decomposition in siloxane sol-gel systems in macroporous media 査読有り

    Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi  

    SOFT MATTER5 巻 ( 16 ) 頁: 3106-3113   2009年

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    記述言語:英語  

    DOI: 10.1039/b903444g

    Web of Science

  133. Elastic organic-inorganic hybrid aerogels and xerogels

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  149. New transparent methylsilsesquioxane aerogels and xerogels with improved mechanical properties

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  155. Size-exclusion effect and protein repellency of concentrated polymer brushes prepared by surface-initiated living radical polymerization

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  156. Monolithic TiO2 with controlled multiscale porosity via a template-free sol-gel process accompanied by phase separation

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  157. Performance of monolithic silica capillary columns with increased phase ratios and small-sized domains

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  158. Thick silica gel coatings on methylsilsesquioxane monoliths using anisotropic phase separation

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    JOURNAL OF SEPARATION SCIENCE29 巻 ( 16 ) 頁: 2463-2470   2006年11月

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  159. Rigid macroporous poly(divinylbenzene) monoliths with a well-defined bicontinuous morphology prepared by living radical polymerization

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  161. High-performance liquid chromatographic enantioseparations on capillary columns containing crosslinked polysaccharide phenylcarbamate derivatives attached to monolithic silica

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  162. Fabrication of Sm2+-doped macroporous aluminosilicate glasses with high alumina content

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  164. Mutual consistency between simulated and measured pressure drops in silica monoliths based on geometrical parameters obtained by three-dimensional laser scanning confocal microscope observations

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  166. Thermodynamics of aggregation of two proteins 査読有り

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  167. Sol-gel process of oxides accompanied by phase separation

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  168. Porous methylsiloxane gel thick film for millimeter-wave antenna substrate prepared by gap filling method

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  169. Size exclusion chromatography of standard polystyrenes with a wide range of molecular weight up to 7.45 x 10(6) on monolithic silica capillary columns

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  170. High-performance frontal analysis of the binding of thyroxine enantiomers to human serum albumin

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  171. Insight on structural change in sol-gel-derived silica gel with aging under basic conditions for mesopore control

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  172. Topical application of ionic polymers affects skin permeability barrier homeostasis

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  173. High-performance liquid chromatographic enantioseparations on capillary columns containing monolithic

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  174. Monolithic silica columns with chemically bonded beta-cyclodextrin as a stationary phase for enantiomer separations of chiral pharmaceuticals

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  175. Monolithic LC columns

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  176. About the total performance of monolithic HPLC-columns.

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  177. Porous gels made by phase separation: Recent progress and future directions

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  178. Membrane emulsification using sol-gel derived macroporous silica glass

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  179. Preparation and chromatographic application of macroporous silicate in a capillary

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  180. Formation of hierarchical pore structure in silica gel

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  181. Aggregation behavior of alkoxide-derived silica in sol-gel process in presence of poly(ethylene oxide)

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  182. Tailoring mesopores in monolithic macroporous silica for HPLC

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  183. Performance of an octadecylsilylated continuous porous silica column in polypeptide separations

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  184. Chromatographic properties of miniaturized silica rod columns

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  185. Morphology control of macroporous silica-zirconia gel based on phase separation

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  186. Designing monolithic double-pore silica for high-speed liquid chromatography

    Ishizuka N, Minakuchi H, Nakanishi K, Soga N, Tanaka N  

    JOURNAL OF CHROMATOGRAPHY A797 巻 ( 1-2 ) 頁: 133-137   1998年2月

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  187. Effect of domain size on the performance of octadecylsilylated continuous porous silica columns in reversed-phase liquid chromatography

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  188. Pore Structure Control of Silica Gels Based on Phase Separation

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  189. Double pore silica gel monolith applied to liquid chromatography

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  190. Octadecylsilylated porous silica rods as separation media for reversed-phase liquid chromatography

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  191. EFFECTS OF AGING AND SOLVENT EXCHANGE ON PORE STRUCTURE OF SILICA-GELS WITH INTERCONNECTED MACROPORES

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  192. Small-angle X-Ray scattering study of nanopore evolution of macroporous silica gel by solvent exchange

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  193. Phase Separation Kinetics in Silica Sol-Gel System Containing Polyethylene Oxide. I. Initial Stage

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  194. In Situ Observation of Phase Separation Processes in Gelling Alkoxy-Derived Silica System by Light Scattering Method 査読有り

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  195. Polymerization-Induced Phase Separation in Silica Sol-Gel Systems Containing Formamide 査読有り

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  196. MACROPORE STRUCTURE DESIGN OF SOL-GEL DERIVED SILICA BY SPINODAL DECOMPOSITION

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    Web of Science

  197. DUAL-POROSITY SILICA-GELS BY POLYMER-INCORPORATED SOL-GEL PROCESS

    NAKANISHI K, TAKAHASHI R, SOGA N  

    JOURNAL OF NON-CRYSTALLINE SOLIDS147 巻   頁: 291-295   1992年10月

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    記述言語:英語  

    Web of Science

  198. PHASE-SEPARATION IN SILICA SOL-GEL SYSTEM CONTAINING POLYACRYLIC-ACID .3. EFFECT OF CATALYTIC CONDITION

    NAKANISHI K, SOGA N  

    JOURNAL OF NON-CRYSTALLINE SOLIDS142 巻 ( 1-2 ) 頁: 36-44   1992年4月

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    記述言語:英語  

    Web of Science

  199. CRYSTALLIZATION OF SILICA-GELS CONTAINING SODIUM POLY-4-STYRENE SULFONATE

    NAKANISHI K, SOGA N  

    JOURNAL OF NON-CRYSTALLINE SOLIDS108 巻 ( 2 ) 頁: 157-162   1989年3月

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    記述言語:英語  

    Web of Science

▼全件表示

講演・口頭発表等 1

  1. 高速LC‐MS/MS分析におけるモノリス型ショートカラムの有用性 国際会議

    宮崎将太, 宮下賢, 青山千顕, 森里恵, 森里恵, 中西和樹, 佐藤睦

    質量分析総合討論会講演要旨集  2017年5月1日 

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    記述言語:日本語   会議種別:口頭発表(一般)  

科研費 27

  1. 低密度高気孔率物質のクロススケール構造制御による強靭化と機能開拓

    研究課題/研究課題番号:22H00342  2022年4月 - 2025年3月

    科学研究費助成事業  基盤研究(A)

    中西 和樹

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    担当区分:研究代表者 

    配分額:42900000円 ( 直接経費:33000000円 、 間接経費:9900000円 )

  2. 精密配位子交換制御によるMOF表面修飾マクロ多孔性モノリスの作製と物性開拓

    研究課題/研究課題番号:18H02056  2018年4月 - 2021年3月

    科学研究費助成事業  基盤研究(B)

    中西 和樹, 金森 主祥

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    担当区分:研究代表者 

    配分額:17290000円 ( 直接経費:13300000円 、 間接経費:3990000円 )

    相分離を伴うゾル-ゲル過程によって作製される整った連続マクロ孔構造をもつモノリス状金属(酸化)水酸化物多孔体を基材とし,細孔表面における配位子交換反応を利用して,Metal Organic Framework (MOF) 結晶を析出させるほか、金属イオンと配位子の集合挙動を制御して、MOFと同等の近距離構造をもつ階層的多孔体の作製およびその結晶化に成功した.階層的多孔構造をもつMOF組成モノリスおよび破砕粒子充填カラムを用いて、粉末あるいは薄膜状の形態に限定されてきたMOFによるガス吸着・貯蔵,分配平衡による分離・精製プロセスを高効率化する見通しを得た.
    MOFのもつ整ったマイクロ孔を有効利用するために、液体の浸透が可能なマクロ孔をもつ階層的多孔材料とする合成の方法論を見出し、構造制御手法を確立するとともに、複数の金属および配位子の組合せについて、同様な材料合成が可能であることを実証した。MOFを機能発現のために幾多の挑戦が続けられてきた階層構造化への道筋が得られたことは、今後の同材料の応用を拡大してゆく上で重要な意味をもつ。階層的多孔材料は粒径を制御した粒子状に成型することにより、薬物徐放など医学分野への応用も期待され、MOFそのものの物性設計自由度の高さと相まって、社会実装可能な応用につながるものと期待される。

  3. ヒドリドシリカモノリス担体中での金属・合金ナノ粒子のその場作製と触媒反応への応用

    研究課題/研究課題番号:26288106  2014年4月 - 2017年3月

    中西 和樹

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    担当区分:研究代表者 

    配分額:17290000円 ( 直接経費:13300000円 、 間接経費:3990000円 )

    トリアルコキシシランの加水分解・重縮合を、Si-H結合を維持したまま進行させて相分離を伴うゾル-ゲル反応を行うことにより、液体の流通が可能なマクロ孔と、高比表面積を与えるメソ孔を併せもつ階層的多孔構造ヒドリドシリカモノリスを作製した。溶媒組成を最適化した貴金属溶液をヒドリドシリカ担体のメソ孔壁にあるSi-Hと反応させて、金属/合金ナノ粒子を形成しこれらを反応触媒とする流通型のリアクターを構成して性能を評価した。また、整った細孔をもつシリカ担体上に、Si-H基をもつ高分子試薬をホウ素触媒によって脱水素反応させ、残ったSi-H基により金属/合金ナノ粒子を作製して、同様の触媒反応効率評価を行った。

  4. 液相法によるリン酸鉄リチウム-炭素系共連続複合体の作製

    研究課題/研究課題番号:25620185  2013年4月 - 2015年3月

    中西 和樹

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    担当区分:研究代表者 

    配分額:4030000円 ( 直接経費:3100000円 、 間接経費:930000円 )

    塩化鉄(III)六水和物、正リン酸、塩化リチウムを出発物質とするリン酸鉄リチウム組成のマクロ多孔性ゲルを相分離を伴うゾル-ゲル法により作製した。数種の金属と鉄を、オキソ酸成分の一部をケイ酸に、それぞれ置き換えた組成で多孔体を作製したところ、電極容量等の物性の変化は小さかった。そこで、同上手法によるチタニア多孔体にヘテロ原子をドープした材料の合成を行い、非水系ゾル-ゲル法によって得られた窒素ドープマクロ多孔性チタニアのリチウムイオン電池負極としての特性を評価したところ、窒素ドープと共に電極容量が増加することが分かった。また、チタニア多孔体のアンモニア処理による窒素ドープ法も開拓した。

  5. 新規ハイブリッドゲルによる透光性断熱材料の開発

    研究課題/研究課題番号:20350094  2008年 - 2010年

    中西 和樹

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    担当区分:研究代表者 

    配分額:19240000円 ( 直接経費:14800000円 、 間接経費:4440000円 )

    メチルシルセスキオキサン組成の有機一無機ハイブリッド湿潤ゲルを、界面活性剤および尿素を用いた一段階合成法によって作製し、超臨界および常圧乾燥によって、高い可視光透過率に加えて優れた断熱性を示す低密度固体を得た。界面活性剤の濃度と出発組成を緻密に制御して、連続マクロ孔と高気孔率メソ孔・高比表面積を併せもつ多孔体の作製に成功し、これらのゲルの熱伝導率の気体圧力依存性と微細構造との関係を明らかにした。

  6. 階層的多孔構造によるナノ反応担体の開発

    研究課題/研究課題番号:15206072  2003年 - 2005年

    中西 和樹

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    担当区分:研究代表者 

    配分額:49140000円 ( 直接経費:37800000円 、 間接経費:11340000円 )

    相分離を伴うシリカのゾル-ゲル反応により、マイクロメートル領域に鋭い細孔径分布を持つ多孔性ゲルを作製した。気孔率の異なるマクロ多孔性ゲルに色素修飾されたアルコキシドを用いてフルオレセインを導入し、共焦点顕微鏡を用いた深さの異なる数十枚以上の2次元画像から再構成された3次元座標情報を得た。この座標情報を元に、試料内の骨格とマクロ孔の空間分布を統計的に処理し、細孔径分布、気孔率など、従来間接的な方法で測定されてきた諸物性を、実空間の構造から直接決定する方法を確立した。次に、骨格構造の界面曲率解析を行い、平均曲率、ガウス曲率、およびそれらの面積規格化平均値を算出することにより、マクロ多孔構造を形成している界面の幾何学的特徴を定量化することができた。他方、骨格およびマクロ孔の連続性に着目して、それらのつながりを抽出する細線化の手法を駆使し、マクロ多孔性ゲルの骨格およびマクロ孔の、網目構造中の分岐数の分布を明らかにした。さらに、この空間配置情報を参考にして、テトラポッド型の基本構造の無限繰り返しからなる、共連続マクロ多孔性ゲルのモデル構造を構築し、マクロ孔を流れる流体の輸送挙動をシミュレーションによって予測すると共に、実際の圧力損失データと比較した。圧力損失の気孔率依存性は、実際の多孔材料において、いずれのモデル構造よりも強くなった。実際の多孔材料の骨格の形態を考慮することにより、モデル構造をさらに改良する方法を提案した。マクロ多孔性担体の分離・反応場としての応用において、流体輸送特性と細孔構造との詳細な対応は、ナノ領域の反応とマクロ領域の物質輸送のバランスを決める重要な情報となる。

  7. 共連続多孔質ゲルのマイクロチップ化

    研究課題/研究課題番号:14655241  2002年 - 2003年

    萌芽研究

    中西 和樹

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    担当区分:研究代表者 

    配分額:3200000円