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MITSUSHIMA Shigenori
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Yokohama National University Department of Material Engineering Master Course Completed
Yokohama National University Department of Material Chemistry Graduated
Doctor in Engineering - Yokohama National University
Duty Yokohama National UniversityFaculty of Engineering Division of Materials Science and Chemical Engineering Professor
Duty Yokohama National UniversityFaculty of Engineering Division of Materials Science and Chemical Engineering Associate Professor
Duty Yokohama National UniversityFaculty of Engineering Division of Materials Science and Chemical Engineering Associate Professor
Duty Yokohama National UniversityFaculty of Engineering Division of Materials Science and Chemical Engineering Research Assistant
Duty Yokohama National UniversitySchool of Engineering Research Assistant
Ecole Polytechnique de Montreal Invited Researcher
Hitachi Research Laboratory, Hitachi Ltd Researcher
Hitachi Research Laboratory, Hitachi Ltd
The Hydrogen Energy System Society of Japan
The Electrochemical Society
The Electrochemical Society of Japan
Nanotechnology/Materials / Inorganic materials
Nanotechnology/Materials / Inorganic compounds/materials chemistry
Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Chemical reaction and process system engineering
Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electronic devices and equipment
有機ハイドライド電解合成
The Other Research Programs
Project Year： 2013.4
アルカリ水電解用アノード
The Other Research Programs
Project Year： 2011.4
New Material for Molten Carbonate Fuel Cells
New Sunshine Program New Sunshine Project
Project Year：
Design of the Pseudo-3D Interface for Electrochemical Energy Conversion
JST Basic Research Programs (Core Research for Evolutional Science and Technology :CREST)
Project Year：
Material and Electrochemical Reaction for Mesothermal Fuel Cells
New Sunshine Program New Sunshine Project
Project Year：
電気応用2版改訂
森本 雅之 監修、蜷川 忠三、入倉 隆、中野 幸夫、近藤 圭一郎、光島 重徳 、市川 紀充（ Role： Joint author , 第6章 電気化学）
電気学会 （ ISBN:978-4-88686-327-0 ）
Total pages：236 Language：Japanese Book type：Textbook, survey, introduction
水素エネルギーの科学と技術 - カーボンニュートラル実現のキーテクノロジー -
市川 貴之, 五舛目 清剛, 斉間 等, 飯山 明裕, 石原 達己, 金指 正言, 亀川 厚則, 川波 肇, 久保田 純, 右近 展之, 古山 通久, 志村 祐康, 高井 健一, 鶴井 宣仁, 姫田 雄一郎, 范 勇, 福原 長寿, 光島 重徳, 宮岡 裕樹, 著森山 教洋（ Role： Joint author , 5.3 再エネ電力からの水素製造技術としての水電解 ）
コロナ社 （ ISBN:978-4-339-06676-0 ）
Total pages：260 Language：Japanese Book type：Textbook, survey, introduction
Processes for Production and Utilization of Organic Hydride and Ammonia
Shigenori Mitsushima, Kensaku Nagasawa（ Role： Sole author）
（ ISBN:978-4-7813-1600-0 ）
Total pages：344 Responsible for pages：27-35 Language：Japanese Book type：Scholarly book
Metal Oxide-Based Nanostructured Electrocatalysts for Fuel Cells, Electrolyzers, and Metal-air Batteries
Yoshiyuki Kuroda, Shigenori Mitsushima（ Role： Joint author , 4 - Oxygen evolution reaction (OER) at nanostructured metal oxide electrocatalysts in water electrolyzers）
Elsevier （ ISBN:978-0-12-818496-7 ）
Total pages：268 Responsible for pages：61-82 Language：English Book type：Scholarly book
水素エネルギーの事典
光島重徳 外（ Role： Contributor）
水素エネルギー協会 編 （ ISBN:978-4-254-14106-1 ）
Total pages：240 Language：Japanese Book type：Scholarly book
Fundamental study for the improvement of molten carbonate fuel cells
Shigenori Mitsushima
1998.12
Doctoral Thesis Single Work
溶融炭酸塩中における材料の劣化に関する研究
光島重徳
1989.3
Master Thesis Single Work
横浜国立大学工学研究科
溶融炭酸塩形燃料電池用のカソード材料の安定性向上を目的とし、代表的なカソード材料である酸化ニッケルの溶解度の溶融炭酸塩の組成や温度に対する依存性ならびに代替材料であるニッケルフェライトの溶解度を測定し、その溶解メカニズムを明らかにした。
Bubble Detachment Size and Rise Velocity Under pH and Potential Variation in Water Electrolysis
Kanemoto, R; Hirayama, K; Toyama, K; Araki, T; Mitsushima, S
JOURNAL OF THE ELECTROCHEMICAL SOCIETY 173 ( 6 ) 2026.3 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Joint Work
MITSUSHIMA Shigenori, KURODA Yoshiyuki, MISUMI Ryuta, IOROI Tsutomu, UCHIMOTO Yoshiharu
Nihon Enerugii Gakkai Kikanshi Enermix 105 ( 2 ) 173 - 181 2026.3 [Invited]
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (other science council materials etc.) Publisher：The Japan Institute of Energy Joint Work
Liao, KW; Pattanathummasid, C; Thakur, N; Kumar, M; Cao, WJ; Watanabe, T; Matsumoto, M; Tsuji, Y; M … Show more authors
Liao, KW; Pattanathummasid, C; Thakur, N; Kumar, M; Cao, WJ; Watanabe, T; Matsumoto, M; Tsuji, Y; Matsunaga, T; Matsumoto, M; Imai, H; Uruga, T; Ohara, K; Mitsushima, S; Uchimoto, Y Hide authors
ACS APPLIED MATERIALS & INTERFACES 18 ( 7 ) 11298 - 11312 2026.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
Wago, H; Mitsushima, S; Kuroda, Y
JOURNAL OF MATERIALS CHEMISTRY A 14 ( 1 ) 1 - 13 2026.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Royal Society of Chemistry Joint Work
GU Kyounghee, MIWA Takuto, ABDEL HALEEM Ashraf, KURODA Yoshiyuki, MITSUSHIMA Shigenori
Electrochemistry advpub ( 0 ) 2026 [Reviewed]
Authorship：Lead author, Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：公益社団法人 電気化学会 Joint Work
MISUMI Ryuta, KURODA Yoshiyuki, ARAKI Takuto, MITSUSHIMA
JAPANESE JOURNAL OF MULTIPHASE FLOW 39 ( 1 ) 18 - 25 2025.3
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：THE JAPANESE SOCIETY FOR MULTIPHASE FLOW Joint Work
Measurement Methods on Electrodes and Electrocatalysts for Water Electrolysis
Mitsushima, S; Ioroi, T; Kuroda, Y; Nagasawa, K; Uchiyama, T; Orikasa, Y; Inoue, H; Higuchi, E; And … Show more authors
Mitsushima, S; Ioroi, T; Kuroda, Y; Nagasawa, K; Uchiyama, T; Orikasa, Y; Inoue, H; Higuchi, E; Ando, K; Nakajima, T; Misumi, R; Uchimoto, Y Hide authors
ELECTROCHEMISTRY 93 ( 4 ) 046001 - 046001 2025
DOI Web of Science CiNii Research
Language：English Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：公益社団法人 電気化学会 Joint Work
<p>Toward decarbonized society with sustainable growth, the use of renewable energy as a primary power source is highly demanded. Water electrolysis is promising to produce hydrogen from renewable energy for energy storage and transportation. In developments of new technologies related to alkaline water electrolysis (AWE) and proton exchange membrane water electrolysis (PEMWE), common measurement techniques are required to compare experimental results fairly among different institutes. In this paper, we introduce common measurement techniques, such as electrochemical half cell and full cell for AWE and PEMWE, evaluation techniques for catalytic activities and durability of catalysts under steady and non-steady operation, advanced synchrotron radiation analysis of catalysts, <i>operando</i> XAFS analysis, and optical observation of gas bubbles in detail, that are recently developed in the project research commissioned by the New Energy and Industrial Technology Development Organization (NEDO).</p>
Electrolyzer Technologies in Toluene Direct Electro-hydrogenation for Methylcyclohexane Synthesis
NAGASAWA Kensaku, MITSUSHIMA Shigenori
Journal of the Japan Petroleum Institute 67 ( 3 ) 97 - 104 2024.5
DOI Web of Science CiNii Research
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：The Japan Petroleum Institute Joint Work
<p>This review presents an overview of the development of an electrolyzer for the direct electrohydrogenation of toluene, a one-step electrochemical process for directly synthesizing methylcyclohexane from toluene and water utilizing solid polymer electrolyte (SPE) membranes. Reducing the cell voltage and enhancing the current efficiency are important to improve the performance of a toluene direct electrohydrogenation electrolyzer. To improve these characteristics, the electrolyzer components consisting of the flow field, the diffusion layer, the anode mesh size, and the collector and cathode catalyst layer were modified and optimized. Investigation of the flow field structure found that the porous carbon flow field exhibited the highest performance, with remarkable improvement in current efficiency. Decrease in current efficiency indicates hydrogen gas generation at the cathode. However, loading of the Pt catalyst in the porous carbon flow field on the cathode side resulted in chemical reaction of the hydrogen gas generated in the catalyst layer with toluene utilizing the Pt catalyst, which significantly improved the overall current efficiency. Smaller mesh size of the anode and heat-pressing treatment of the anode current collector reduced the cell voltage with increased cathode catalyst utilization ratio by improvement of surface pressure uniformity and membrane flatness. The toluene permeation properties of various SPE membranes were determined and the relationship between the catalyst layer thickness and electrolysis performance was clarified. The developed technologies improved the cell voltage at 0.4 A cm<sup>−2</sup> current density from 2.10 to 1.72 V and achieved more than 90 % toluene conversion in continuous single-flow operation.</p><p>This review presents an overview of the development of an electrolyzer for the direct electrohydrogenation of toluene, a one-step electrochemical process for directly synthesizing methylcyclohexane from toluene and water utilizing solid polymer electrolyte (SPE) membranes. Reducing the cell voltage and enhancing the current efficiency are important to improve the performance of a toluene direct electrohydrogenation electrolyzer. To improve these characteristics, the electrolyzer components consisting of the flow field, the diffusion layer, the anode mesh size, and the collector and cathode catalyst layer were modified and optimized. Investigation of the flow field structure found that the porous carbon flow field exhibited the highest performance, with remarkable improvement in current efficiency. Decrease in current efficiency indicates hydrogen gas generation at the cathode. However, loading of the Pt catalyst in the porous carbon flow field on the cathode side resulted in chemical reaction of the hydrogen gas generated in the catalyst layer with toluene utilizing the Pt catalyst, which significantly improved the overall current efficiency. Smaller mesh size of the anode and heat-pressing treatment of the anode current collector reduced the cell voltage with increased cathode catalyst utilization ratio by improvement of surface pressure uniformity and membrane flatness. The toluene permeation properties of various SPE membranes were determined and the relationship between the catalyst layer thickness and electrolysis performance was clarified. The developed technologies improved the cell voltage at 0.4 A cm<sup>−2</sup> current density from 2.10 to 1.72 V and achieved more than 90 % toluene conversion in continuous single-flow operation.</p>
Water Electrolysis as Hydrogen Production Technology from Renewable Electricity
MITSUSHIMA Shigenori
Nihon Enerugii Gakkai Kikanshi Enermix 101 ( 6 ) 713 - 719 2022.11
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：The Japan Institute of Energy Single Work
Electrochemical Methods for Water Electrolysis Electrodes and Electrocatalysts
MITSUSHIMA Shigenori, IOROI Tsutomu, KURODA Yoshiyuki, NAGASAWA Kensaku, UCHIYAMA Tomoki, ORIKASA Y … Show more authors
MITSUSHIMA Shigenori, IOROI Tsutomu, KURODA Yoshiyuki, NAGASAWA Kensaku, UCHIYAMA Tomoki, ORIKASA Yuki, INOUE Hiroshi, HIGUCHI Eiji, ANDO Kota, NAKAJIMA Takashi, MISUMI Ryuta, UCHIMOTO Yoshiharu Hide authors
Denki Kagaku 90 ( 2 ) 136 - 158 2022.6
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：The Electrochemical Society of Japan Joint Work
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電解用陽極及びその製造方法
光島 重徳、黒田 義之、長澤 兼作、円城寺 勇斗、錦 善則、加藤 昭博、ザエナル アワルディン、中井 貴章
Applicant：デノラ・ペルメレック株式会社／国立大学法人横浜国立大学
Application no：PCT/JP2023/037828 Date applied：2023.10.19
Announcement no：WO2024/101105 Date announced：2024.5.16
Country of applicant：Domestic , Foreign country , International (PCT) application
３次元規則骨格構造を有する金属部材、水電解装置、燃料電池
光島 重徳、黒田 義之、長澤 兼作、佐野 陽祐、大森 信一、加藤 純
Applicant：横浜国立大学、三菱マテリアル
Application no：PCT/JP2023?032127 Date applied：2023.9.1
Announcement no：WO2024/048791 Date announced：2024.3.7
Country of applicant：International (PCT) application
アルカリ水電解用隔膜、アルカリ水電解セル、及び、アルカリ水電解方法
光島 重徳、黒田 義之、長澤 兼作、アシュラフ アブドルハリム、芥川 寛信、三佐和 裕二、中山 信也
Applicant：株式会社日本触媒／国立大学法人横浜国立大学
Application no：PCT/JP2023/029162 Date applied：2023.8.9
Announcement no：WO2024/048235 Date announced：2024.3.7
Country of applicant：Domestic , International (PCT) application
アルカリ水電解装置
光島 重徳、奥野 一樹、東野 孝浩、俵山 博匡、黒田 義之、細江 晃久
Applicant：横浜国立大学、住友電気工業
Application no：PCT/JP2023/015597 Date applied：2023.4.19
Announcement no：WO2024/047934 Date announced：2024.3.3
Country of applicant：Domestic , International (PCT) application
水溶液電解方法
三角 隆太、光島 重徳、池田 隼太、錦 善則、加藤 昭博、中井 貴章
Applicant：デノラ・ペルメレック株式会社／国立大学法人横浜国立大学
Application no：2023-569072 Date applied：2022.9.29
Announcement no：WO2023/119779 Date announced：2023.6.29
Patent/Registration no：AU2022423069 Date registered：2026.1.22
Country of applicant：Domestic , International (PCT) application
2024.7 公益社団法人発明協会 耐久性の高い水素キャリアとしての有機ハイドライド製造装置及び製造方法の発明 （特許第６７５８６２８号）
Individual or group name of awards： 光島重徳(横浜国立大学)、 長澤兼作(産業技術総合研究所)、 錦善則(デノラ・ペルメレック(株))、加藤昭博(デノラ・ペルメレック(株))、尾形節郎(デノラ・ペルメレック(株))、Zaenal Awaludin(デノラ・ペルメレック(株))、眞鍋明義(デノラ・ペルメレック(株))、佐藤 康司(ＥＮＥＯＳ(株))、松岡孝司(ＥＮＥＯＳ(株))
Electrochemistry誌の2023年の被引用上位論文「第2位」
2024.7 Electrochemistry
Individual or group name of awards：Ashraf ABDEL HALEEM, 長澤 兼作, 黒田 義之, 錦 善則, Awaludin ZAENAL, 光島 重徳
平成31年度電気化学会論文賞
2019.3 電気化学会 Dependence of the Reverse Current on the Surface of Electrode Placed on a Bipolar Plate in an Alkaline Water Electrolyzer
Individual or group name of awards：内野 陽介、小林 貴之、長谷 川 伸司、永島 郁男、砂田 良 雄、真鍋 明義、錦 善則、光島 重徳
平成26年度業績賞
2014.11 電気化学会電解科学技術委員会
Individual or group name of awards：光島重徳
常温水電解の実用化基盤研究プラットフォームの構築
2023.6 - 2025.3
NEDO燃料電池等利用の飛躍的拡大に向けた共通課題解決型産学官連携研究開発事業
Authorship：Principal investigator
トルエン直接電解水素化電解槽の水挙動の解析と電流効率の向上
2021.6 - 2023.3
水素利用等先導研究開発事業／エネルギーキャリアシステム調査・研究
アルカリ水電解及び固体高分子形水電解の高度化
2018.7 - 2023.3
水素利用等先導研究開発事業／水電解水素製造技術高度化のための基盤技術研究開発
有機ハイドライド電解合成用電極触媒の研究開発
2017.5 - 2018.2
エネルギー・環境新技術先導プログラム
Investigator(s)：光島重徳
＜エネルギーキャリア・チーム＞有機ハイドライド
2013.7 - 2014.6
Japan Science and Technology Agency 戦略的創造研究推進事業 先端的低炭素化技術開発（ＡＬＣＡ） 特別重点技術領域
Investigator(s)：光島重徳
カーボンニュートラルを達成した日本の将来像
光島 重徳 [Invited]
触媒学会討論会特別シンポジウム「カーボンニュートラルな合成燃料製造技術の現在と未来を考える」 2026.3 触媒学会
Event date： 2026.3
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：東京科学大
Investigation of Composition and Structure of NiFeCo-based Self-healing Catalysts for Alkaline Water Electrolysis
Yusuke Miyata, Kohei Hasegawa, Ryuki Okada, Shigenori Mitsushima, Yoshiyuki Kuroda,
2026.3
Event date： 2026.3
Language：Japanese Presentation type：Oral presentation (general)
Analysis of Electrode States in Start-Stop Degradation Tests of NiCoOx-Coated Ni Anodes
Kosuke Mafune, Takuto Miwa, Kyounghee Gu, Yoshiyuki Kuroda, Shigenori Mitsushima
2026.3
Event date： 2026.3
Language：Japanese Presentation type：Oral presentation (general)
Green hydrogen production (P2H, electrolysis): current status and challenges
Shigenori Mitsushima [Invited]
Mission Innovation online Workshop 2026.2
Event date： 2026.2
Language：English Presentation type：Oral presentation (invited, special)
Venue：online
Degradation mechanism and ADT protocol for alkaline water electrolyzers
Shigenori Mitsushima, A. Abdel Haleem, Yoshiyuki Kuroda [Invited]
Asian Conference on Electrochemical Power Sources - 13 2026.1 Indian Institute of Science, Bengaluru
Event date： 2026.1
Language：English Presentation type：Oral presentation (invited, special)
Venue：Indian Institute of Science, Bengaluru
2026 Exercise in Advanced Energy Creation F
Graduate school of Engineering Science
2026 Exercise in Advanced Energy Creation S
Graduate school of Engineering Science
2026 Advanced Energy Chemistry
Graduate school of Engineering Science
2026 Exercise in Technology for Energy Creation F
Graduate school of Engineering Science
2026 Exercise in Technology for Energy Creation S
Graduate school of Engineering Science
水素エネルギー協会
2022.5 - 2024.5 会長
Committee type：Academic society
電気化学会
2019.4 - 2021.3 理事・会計理事
Committee type：Academic society
H31-32年度電気化学会理事・会計理事
水素エネルギー協会
2018.4 - 2022.3 業務執行副会長
Committee type：Academic society
Electrocatalysis
2018.1 Topical Editor
Committee type：Academic society
埼玉県 水素エネルギー普及推進協議会
2017.12 会長
Committee type：Other
光島重徳「市内CO2排出削減が日本全体に役に立つ」 川崎区で「水素戦略」シンポジウム
Role(s)： Guest, Lecturer, Logistic support
川崎臨海部水素ネットワーク協議会 「水素戦略」シンポジウムを開催後（川崎区 2020年2月19日）東京新聞に掲載（2020年2月20日） 2020.2
Audience： University students, Graduate students, Teachers, Researchers, Company, Government agency, Media, Other
Type：Lecture
エネルギー・環境問題と水素・燃料電池技術の現状
工学研究院 横浜国立大学 2007.6
Type：Extension Lecture
エネルギー・環境問題を克服し、持続成長可能な社会を築くためには地球規模の視点での問題提起とナノレベルの技術開発が欠かせません。本講座では、来るべき水素社会の本質と新エネルギーの開発、燃料電池の現状技術
