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Hydrogen Storage Materials by the Nanoconfinement effects

Research Project

Project/Area Number 20K04186
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 18010:Mechanics of materials and materials-related
Research InstitutionMeiji University

Principal Investigator

NOTOMI MITSUO  明治大学, 理工学部, 専任教授 (70218288)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
KeywordsMg系水素貯蔵材料 / 水素吸蔵材料 / マグネシウム / 鉄 / グラフェン / グラファイト / 水素貯蔵材料 / Mg-Fe / Graphite / Grahene / Mg系合金 / Nanoconfinement / Mg系積層薄膜
Outline of Research at the Start

水素を固体に固定化する手法は,化学吸着,物理吸着,Kubas結合,Nanoconfinementの4種類が知られている。これまで,Mgに水素を化学吸着する方法に対して遷移金属の積層や合金化により水素吸蔵量と水素放出温度の改善を試み,一定の成果を得たが十分ではなかった。そこで本研究では水素貯蔵時に水素化物が不安定化するようにNanoconfinement効果を応用した水素貯蔵材料を開発する。さらに,Nanoconfiementのメカニズムを検討するためにナノオーダーの膜厚のMg/遷移金属/高分子積層薄膜を開発し,水素透過度を測定することによってNanoconfinement現象を追求する。

Outline of Final Research Achievements

We aimed to develop a Mg-based hydrogen storage material that utilizes the nanoconfinement effect. First, Mg/Fe-based and Mg/Al-based thin films were fabricated using resistance heating vacuum evaporation and PLD. As a result, the Mg/Fe/Pd multilayer film showed a maximum hydrogen storage capacity of 5.58 wt.%, and the Mg/Al/Pd multilayer film showed a maximum hydrogen storage capacity of 3.0 wt.%. Next, Mg-Fe-carbon compound powder was prepared using a mechanical alloying method. As a result, Mg-C60-Fe powder is up to 3 wt.%, Mg-Fe-Gr powder is up to 4 wt.%, Mg-Fe-Graphene powder is up to 4 wt.%, Mg-Fe-reduced Graphene oxide powder showed a hydrogen storage capacity of 4 wt.%.

Academic Significance and Societal Importance of the Research Achievements

水素貯蔵材料の開発にはNanoconfinement効果が有力視され,従来の水素貯蔵量を凌駕する報告もある。そこで,この効果を活かすために,積層薄膜と粉体という二つのアプローチをとり,水素貯蔵量がMgの理論吸蔵量に近づきつつ,水素放出温度の約100℃の低減と水素放出速度の大幅な改善が達成できることを示した.これは今後の水素貯蔵材料開発指針を示すものである.さらにこの知見は水素窒素分離膜の開発に活かすことができると考え,まずはベースとなる高分子材料の水素透過度測定を行い,その方向性を示すことができた.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (11 results)

All 2023 2022 2021

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Evaluation of Hydrogen Permeability of Polymer Membranes2022

    • Author(s)
      倉田 健太郎,間野 大貴,櫻井 雅久,納冨 充雄
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 71 Issue: 11 Pages: 903-909

    • DOI

      10.2472/jsms.71.903

    • ISSN
      0514-5163, 1880-7488
    • Year and Date
      2022-11-15
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhanced hydrogen storage properties of ball-milled Mg with C<sub>60</sub> and Fe2022

    • Author(s)
      Kazuki TARUI, Mitsuo NOTOMI
    • Journal Title

      Mechanical Engineering Journal

      Volume: 9 Issue: 1 Pages: 21-00376-21-00376

    • DOI

      10.1299/mej.21-00376

    • NAID

      130008160265

    • ISSN
      2187-9745
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of hydrogen absorption and desorption properties of Mg/Al based laminated thin films2021

    • Author(s)
      臼井 智己,納冨 充雄
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 87 Issue: 898 Pages: 21-00057-21-00057

    • DOI

      10.1299/transjsme.21-00057

    • NAID

      130008057117

    • ISSN
      2187-9761
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Improved desorption temperature of magnesium hydride via multi-layering Mg/Fe thin film2021

    • Author(s)
      Noor Aliah Abdul Majid, Junpei Watanabe, Mitsuo Notomi
    • Journal Title

      International Journal of Hydrogen Energy

      Volume: 46 Issue: 5 Pages: 4181-4187

    • DOI

      10.1016/j.ijhydene.2020.10.178

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] rGO を担持した Mg-Fe の水素化特性の評価2023

    • Author(s)
      伊藤 秀真,納冨 充雄
    • Organizer
      日本機械学会 M&M2023 材料力学カンファレンス
    • Related Report
      2023 Annual Research Report
  • [Presentation] Mg@グラフェンの構造解析2022

    • Author(s)
      細野 優登、納冨 充雄
    • Organizer
      日本機械学会年次大会2022
    • Related Report
      2022 Research-status Report
  • [Presentation] PIおよびPEEK薄膜の水素ガス透過性及び窒素ガス遮断特性2022

    • Author(s)
      小栗 楓、納冨 充雄
    • Organizer
      日本機械学会年次大会2022
    • Related Report
      2022 Research-status Report
  • [Presentation] Hydrogen Storage Material of Fe-Doped Magnesium Supported by Graphene2022

    • Author(s)
      Yuta HOSONO, Mitsuo NOTOMI
    • Organizer
      2022 MRS Fall Meeting and Exhibit
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] PIを基板としたNiナノ積層膜における水素・窒素ガス分離特性評価2022

    • Author(s)
      小栗 楓, 納冨 充雄
    • Organizer
      水素化物に関わる次世代学術応用展開研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] マグネシウム系水素貯蔵材料の現状と今後2021

    • Author(s)
      納冨充雄
    • Organizer
      日本材料学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] C60とFeを添加したMgの水素吸蔵・放出特性2021

    • Author(s)
      樽井 一樹, 納冨 充雄
    • Organizer
      日本機械学会
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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