Graduate Faculty of Interdisciplinary Research Faculty of Engineering
Materials Science (Clean Energy Research Center)


Inukai Junji

Other affiliation / position

  1. Graduate Faculty of Interdisciplinary Research Faculty of Engineering Materials Science (Fuel Cell Nanomaterials Center) 教授


  1. Keio University Department of Chemistry, Faculty of Science and Technology Research Associate 1992/04/01-1994/07/31
  2. Tohoku University Department of Applied Chemistry, Faculty of Engineering Research Associate 1994/08/01-2002/03/31
  3. Japan Science and Technology Agency Sakigake Researcher 1999/10/01-2002/09/30
  4. University of Tohoku Department of Applied Chemistry, Graduate School of Engineering Lecture 2002/04/01-2003/08/31
  5. Tohoku University New Industry Creation Hatchery Center Associate Professor 2003/09/01-2006/01/31
  6. University of Illinois Department of Chemistry Visiting Researcher 2005/01/07-2006/01/05
  7. University of Yamanashi Clean Energy Research Center Research Associate Professor 2006/02/01-2008/03/31
  8. University of Yamanashi Clean Energy Research Center Research Professor 2008/04/01-2009/03/31
  9. University of Yamanashi Fuel Cell Nanomaterials Center Research Professor 2009/04/01-2017/03/31
  10. University of Yamanashi Clean Energy Research Center Professor 2017/04/01

Academic background

  1. University of Tokyo Graduate School of Science Department of Chemistry Master course 1989/03/31 Completed Japan
  2. University of Tokyo Graduate School of Science Department of Chemistry Doctor course 1992/03/31 Graduated Japan

Research Areas

  1. Physical Chemistry Surface Electrochemistry, Surface Chemistry, Electrochemistry, Fuel Cell, Catalysis

Research keywords

  1. Surface, Interface, Chemistry, Reaction, Instrumental Development

Subject of research

  1. Development of Analytical System for Fuel Cells 2006
  2. Reaction analysis inside Fuel Cells 2006
  3. Structural Analysis of Fuel Cell Materials 2006
  4. 放射光および中性子線を用いた物質及び反応系解析 2015

Proposed theme of joint or funded research

  1. Development of Analytical Instruments
  2. Structural and Reaction Analysis of Materials

Research Projects (Competitive Research Funds)

  1. 69th Meeting of the International Society of Electrochemistry出席 Others 2018/09/01-2018/09/11
  2. 放射光と中性子線の燃料電池用新規セパレータ開発への応用 Others 2018/04/01-2019/03/31
  3. Structures and Distributions of Materials inside Batteries and Fuel Cells Analyzed by New Analytical System Combining AFM and Non-Linear Raman Spectroscopy Science research expense 基盤研究(B) 日本学術振興会 科学研究費補助金 2016/04/01-2019/03/31
  4. 反応中燃料電池内部の反応分布3次元可視化 Others 2011/10/01-2014/03/31


  1. 水素機能材料の解析 折茂慎一、犬飼潤治 編集及び執筆(1.4および2.4) 共立出版 2017/12/25 978-4-320-04453-1 本書では各種の計測・計算に基づく水素機能材料の解析技術について,以下の構成でまとめている。第1章「水素機能材料に求められる特性」では,水素機能材料を水素用構造材料・水素透過材料・水素貯蔵材料・燃料電池材料の4つに分類して,それぞれに求められる特性を述べる。第2章「水素機能材料の特性を引き出す解析」では,前章で4つに分類した材料ごとに,その基本的な特性を解析するための技術を解説する。第3章「多面的な水素の解析」では,水素機能材料のより高度な解析のための計測・計算技術について詳述する。 水素機能材料の解析は現在急速に進展している重要な研究・技術分野であり,その最先端を本書で俯瞰していただける。


  1. Research paper (scientific journal) Joint Phase separation and ion conductivity in the bulk and at the surface of anion exchange membranes with different ion exchange capacities at different humidities Taro Kimura, Ryo Akiyama, Kenji Miyatake, Junji Inukai Journal of Power Sources Taro Kimura, Ryo Akiyama, Kenji Miyatake, Junji Inukai 375, 397-403 2018/01/31 0378-7753 10.1016/j.jpowsour.2017.06.081
  2. Research paper (scientific journal) Joint Atomically Flat Pt Skin and Striking Enrichment of Co in Underlying Alloy at Pt3Co(111) Single Crystal with Unprecedented Activity for the Oxygen Reduction Reaction S. Kobayashi, M. Aoki, M. Wakisaka, T. Kawamoto, R. Shirasaka, K. Suda, D. A. Tryk, J. Inukai, T. Kondo, H. Uchida ACS Omega 3/ 1, 154-158 2018/01/17 10.1021/acsomega.7b01793
  3. Research paper (scientific journal) Joint Weakened CO adsorption and enhanced structural integrity of a stabilized Pt skin/PtCo hydrogen oxidation catalyst analysed by in situ X-ray absorption spectroscopy G. Shi, H. Yano, D. A. Tryk, M. Matsumoto, H. Tanida, M. Arao, H. Imai, J. Inukai, A. Iiyama, H. Uchida Catalysis Science & Technology 7/ 24, 6124-6131 2017/12/21 2044-4753 10.1039/C7CY01700F
  4. Research paper (scientific journal) Joint Copolymers Composed of Perfluoroalkyl and Ammonium-functionalized Fluorenyl Groups as Chemically Stable Anion Exchange Membranes Mizuki Ozawa, Taro Kimura, Ryo Akiyama, Junpei Miyake, Junji Inukai, and Kenji Miyatake Bulletin of the Chemical Society of Japan 90/ 10, 1088-1094 2017/10/17 0009-2673 10.1246/bcsj.20170185
  5. Research paper (scientific journal) Joint Visualization of the Oxygen Partial Pressure on the Gas-Diffusion-Layer Surface under the Single-Serpentine Flow Channel and the Ribs in a Polymer Electrolyte Membrane Fuel Cell during the Power Generation Kazuhiro Takanohasih,Makoto Uchida,Akihiro Iiyama,Junji Inukai Journal of Surface Finishing Society of Japan 68/ 6, 338-343 2017/06/01

Research presentations

  1. Oral presentation(general) 電流検出型原子間力顕微鏡を用いた燃料電池用電解質膜表面のイオン伝導パス可視化技術 表面技術協会第137回講演大会 2018/03/12
  2. Poster presentation 発電中の固体高分子形燃料電池触媒層界面で生じる振動現象の解析 表面技術協会第137回講演大会 2018/03/12
  3. Oral presentation(invited, special) Recent R & D of Electrocatalysts and Polymer Electrolytes to Realize Superlative, Stable, and Scalable Performance Fuel Cells International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth 2017/10/28
  4. Oral presentation(general) Surface Composition, Structure, and Oxygen Reduction Reaction Activity on PtCo(111) Alloy Single-Crystal Electrodes Prepared under H2 Atmosphere International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth 2017/10/28
  5. Poster presentation Operando Monitoring of the Oxygen Partial Pressures Inside the Gas Diffusion Layer of a Running Polymer Electrolyte Fuel Cell Using Optical Probes International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth 2017/10/28

Intellectual property rights

  1. Patent フローセル 特願2017-168476 2017/09/01
  2. Patent 温度計測用プローブ 特願2016-077567 2016/04/07
  3. Patent マイクロプローブを利用した内部計測装置 特願2015-031834 2015/02/20
  4. Patent ガス流路構造および燃料電池 特願2014-184706 2014/09/10
  5. Patent 燃料電池セルおよび燃料電池反応計測装置 5581547 2014/07/25


  1. 講演奨励賞(スチューデント部門) 発電中における固体高分子形燃料電池内ガス拡散層表面・内部の光学プローブを用いた酸素分圧測定 2017/05/20
  2. 学術奨励講演賞 Ptx-Coy合金単結晶電極表面構造解析による酸素還元活性向上因子の検討 2017/03/10
  3. PEFC16 Poster Award Systematic Studies on the Phase Separations at Bulks and Surfaces of the Anion Exchange Membranes with Different Polymer Structures 2016/10/05

Joint research with off-campus or faculty, etc. outside of the organization

  1. 2017/04/01-2019/03/31 高輝度光科学研究センター Representative
  2. 2017/02/01-2017/06/30 トヨタ自動車 Representative
  3. 2016/10/01-2018/03/31 理化学研究所 Representative
  4. 2016/07/24-2019/03/31 豊田工業大学 Representative 走査プローブ顕微鏡を用いた表面化学分布解析

Alloted class

  1. 表面・界面科学特論第一
  2. 表面・界面科学特論第二
  3. 環境科学特論

Other educational achievements

  1. 2017 留学生奨学金の面接及び合否判定会議

Instruction results

  1. Master's dissertations guidance 2017 1
  2. Doctoral dissertations guidance 2016 1
  3. Master's dissertations guidance 2016 2

Review of master's and doctoral thesis

  1. 2017 Chief examiner 1
  2. 2017 Second reader 8 1 5 1

Performance of external announcement guidance

  1. 2017 5 20 3 9 3 60

Social Contribution

  1. 平成29年度 燃料電池関連製品開発人材養成講座 2017/06/22-2017/06/22
  2. 山梨県における燃料電池産業の説明 2017/03/01-2017/03/03
  3. ビジネスチャンス直行便(山梨中央銀行) 2016/09/10-2016/09/20
  4. 鍍金の世界 インタビュー 2016/05/09-2017/02/16

Memberships of academic societies

  1. 日本中性子科学会
  2. 日仏工業技術会
  3. International Society of Electrochemistry
  4. Electrochemical Society
  5. 日本放射光学会

Committee outside the campus

  1. 表面技術協会 常務会 2017/04/01-2018/03/31
  2. 日本学術委員会 第190委員会 2016/04/01
  3. 表面技術協会 アカデミック実行委員会 2016/04/01-2019/03/31
  4. 表面技術協会 学術委員会 2016/04/01-2018/03/31
  5. 日本表面科学会 出版委員会 2015/04/01