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Fabrication of Oxygen Reduction Electrocatalysts by One-Pot Process Using Ionic Liquids as Reaction Media

Research Project

Project/Area Number 19H02814
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionChiba University (2022)
Osaka University (2019-2021)

Principal Investigator

Tsuda Tetsuya  千葉大学, 大学院工学研究院, 教授 (90527235)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Keywords電極触媒 / 酸素還元 / 燃料電池 / イオン液体 / ワンポット
Outline of Research at the Start

イオン液体中に存在する金属イオン種を熱還元する方法(イオン液体-熱還元法)を使うと、ワンポットプロセスで金属ナノ粒子担持炭素材料が合成できる。この方法で得られたPtナノ粒子担持炭素材料は酸素還元電極触媒として利用できるため、工学的価値の高い電極触媒合成法と言えるが、多くの学術的疑問点が存在している。本研究では、それらの解明を研究代表者独自のアプローチ(オペランド透過型電子顕微鏡観察(TEM)やオペランドX線光電子分光分析(XPS))によって行い、学術的に意義深い成果を得るとともに、その情報を利用することで、工学的価値の高い高機能酸素還元電極触媒合成法を確立する。

Outline of Final Research Achievements

A novel simple one-pot process for preparing the metal nanoparticle-supported carbon materials, i.e., oxygen reduction electrocatalysts with high engineering value, which consists of heating and stirring of the ionic liquid (IL) with metal nanoparticle precursors and carbon supports, was establish in this research. This process was named one-pot IL-pyrolysis method. Under the conditions where platinum (Pt) precursors, nickel (Ni) precursors, and multi-walled carbon nanotube (MWCNT) coexist, PtNi alloy nanoparticle-supported MWCNT was successfully obtained, making it possible to synthesize materials that are attractive as oxygen reduction electrocatalysts.

Academic Significance and Societal Importance of the Research Achievements

イオン液体-熱分解法は1つの容器の中で金属ナノ粒子担持炭素材料の合成が完了するワンポットプロセスであるが、その合成メカニズムについては明らかとなっていなかった。本研究によって、金属ナノ粒子の担持は炭素担体上に核が形成され、そこを起点として核成長することで進行するなどの学術的に重要な知見が得られた。本手法はスケールアップが容易であるため、その知見を利用することで社会実装を見据えた酸素還元電極触媒の設計が可能となった。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (19 results)

All 2023 2022 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Book (1 results) Remarks (2 results)

  • [Int'l Joint Research] State University of New York(米国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Electrocatalyst Fabrication Using Metal Nanoparticles Prepared in Ionic Liquids2023

    • Author(s)
      Yu Yao, Tetsuya Tsuda, Tsukasa Torimoto, and Susumu Kuwabata
    • Journal Title

      The Chemical Record

      Volume: 23 Issue: 8

    • DOI

      10.1002/tcr.202200274

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 有機イオン液体中での金属ナノ粒子の調製とその電極触媒への応用2023

    • Author(s)
      津田哲哉
    • Journal Title

      溶融塩および高温化学

      Volume: 66(1) Pages: 3-11

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Impact of sp<sup>2</sup> carbon material species on Pt nanoparticle-based electrocatalysts produced by one-pot pyrolysis methods with ionic liquids2022

    • Author(s)
      Yao Yu、Xiao Qingning、Kawaguchi Masafumi、Tsuda Tetsuya、Yamada Hirohisa、Kuwabata Susumu
    • Journal Title

      RSC Advances

      Volume: 12 Issue: 22 Pages: 14268-14277

    • DOI

      10.1039/d2ra01330d

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PtNi Alloy Nanoparticle-Supported MWCNTs Produced in a Nickel(II) Oxalate Dihydrate Dispersed Ionic Liquid with Pt(acac)<sub>2</sub> by One-Pot Pyrolysis Method2020

    • Author(s)
      Yao, Yu; Xiao, Qingning; Tsuda, Tetsuya; Kuwabata, Susumu
    • Journal Title

      Electrochemistry

      Volume: 88 Issue: 5 Pages: 353-355

    • DOI

      10.5796/electrochemistry.20-64065

    • NAID

      130007897004

    • ISSN
      1344-3542, 2186-2451
    • Year and Date
      2020-09-05
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] One-Pot Synthesis of PtNi Alloy Nanoparticle-Supported Multiwalled Carbon Nanotubes in an Ionic Liquid Using a Staircase Heating Process2020

    • Author(s)
      Yao Yu、Izumi Reiko、Tsuda Tetsuya、Aso Kohei、Oshima Yoshifumi、Kuwabata Susumu
    • Journal Title

      ACS Omega

      Volume: 5 Issue: 40 Pages: 25687-25694

    • DOI

      10.1021/acsomega.0c02951

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Platinum and PtNi Nanoparticle-Supported Multiwalled Carbon Nanotube Electrocatalysts Prepared by One-Pot Pyrolytic Synthesis with an Ionic Liquid2019

    • Author(s)
      Y. Yao, R. Izumi, T. Tsuda, Y. Oshima, A. Imanishi, N. Oda, S. Kuwabata
    • Journal Title

      ACS Appl. Energy Mater.

      Volume: 27 Issue: 7 Pages: 4865-4872

    • DOI

      10.1021/acsaem.9b00561

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 有機イオン液体中での金属ナノ粒子の調製とその電極触媒への応用2023

    • Author(s)
      津田哲哉
    • Organizer
      溶融塩委員会 第210回定例委員会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 金属有機構造体由来炭素への白金ナノ粒子担持とその電極触媒評価2022

    • Author(s)
      小寺直人、津田哲哉、桑畑 進
    • Organizer
      電気化学会 第89回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] One-Pot Preparation of Pt Nanoparticle-Supported Graphene Nanoplatelets by Ionic Liquid-Pyrolysis Method2020

    • Author(s)
      Xiao, Qingning; Yao, Yu; Tsuda, Tetsuya; Kuwabata, Susumu
    • Organizer
      PRiME2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ワンポットプロセスによるPtナノ粒子担持炭素材料の作製2020

    • Author(s)
      肖 慶寧、姚 宇、津田哲哉、桑畑 進
    • Organizer
      第9回JACI/GSCシンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] ワンポットプロセスによるPtナノ粒子担持炭素材料の作製2020

    • Author(s)
      肖 慶寧、姚 宇、津田哲哉、桑畑 進
    • Organizer
      電気化学会第87回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effects of carbon materials in Pt nanoparticle supported electrocatalysts prepared by one-pot ionic liquid pyrolysis method2019

    • Author(s)
      Yu Yao, Masafumi Kawaguchi, Reiko Izumi, Tetsuya Tsuda, and Susumu Kuwabata
    • Organizer
      2nd Nucleation and Growth Research Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of Ni Precursor Species on Pt-Ni Alloy Nanoparticles-Supported MWCNTs Composite Materials Prepared by One-Pot Process2019

    • Author(s)
      Yu Yao, Reiko Izumi, Tetsuya Tsuda, and Susumu Kuwabata
    • Organizer
      第10回イオン液体討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] イオン液体を用いたPtナノ粒子担持グラフェンの熱分解法によるワンポット作製2019

    • Author(s)
      肖 慶寧、姚 宇、津田哲哉、桑畑 進
    • Organizer
      第10回イオン液体討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Pt-Ni Alloy Nanoparticle-Supported MWCNT Electrocatalysts Prepared by One-Pot Pyrolytic Method in Ionic Liquids with Different Ni Precursors2019

    • Author(s)
      Yu Yao, Reiko Izumi, Tetsuya Tsuda, and Susumu Kuwabata
    • Organizer
      電気化学会第87回大会
    • Related Report
      2019 Annual Research Report
  • [Book] イオン液体の実用展開へ向けた最新動向(第14章 ナノ粒子合成(分担))2022

    • Author(s)
      津田哲哉、桑畑 進、鳥本 司
    • Total Pages
      320
    • Publisher
      シーエムシー出版
    • ISBN
      9784781316741
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Remarks] 研究室紹介ホームページ

    • URL

      http://www.chem.eng.osaka-u.ac.jp/~elechem/

    • Related Report
      2020 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      http://www.chem.eng.osaka-u.ac.jp/~elechem/

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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