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Preparations of noble bimetal nanoparticles modified nickel electrodes and their applications to electroanalysis

Research Project

Project/Area Number 21K05111
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 34020:Analytical chemistry-related
Research InstitutionKyoto University

Principal Investigator

OYAMA Munetaka  京都大学, 工学研究科, 准教授 (90221861)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords貴金属ナノ粒子 / 貴金属合金ナノ粒子 / 修飾電極 / ボルタンメトリー / 電気化学分析 / 電極触媒 / 貴金属合金
Outline of Research at the Start

本研究では、ニッケル線やニッケルマイクロ粒子を貴金属イオン水溶液中に浸漬するだけ、という非常に簡便な方法を用いて、イオン化傾向を利用して貴金属イオンを還元し、ニッケル表面に貴金属ナノ粒子を修飾する。特にその際、2種類の貴金属イオンの混合水溶液中に浸漬するなどの方法で、貴金属合金ナノ粒子修飾ニッケル電極を作製することにより、高度な電気化学分析を可能にするとともに、新しい電極触媒を開発する。

Outline of Final Research Achievements

Based on a simple immersion method of nickel wire into an aqueous solution containing noble metal ions, preparations of noble bimetal nanoparticles modified nickel wire electrodes were studied. As the result, it was found that the modifications of bimetals were significantly promoted compared with the modification of single noble metal in several cases using simultaneous or stepwise modifications. These preparation methods are novel and promising for preparing electrocatalysts composed of noble bimetals.

Academic Significance and Societal Importance of the Research Achievements

本研究の遂行により、ニッケル線を貴金属イオン水溶液に浸漬するだけという簡便な方法に基づいて、2成分貴金属の同時修飾や段階修飾を行うことにより、多様な貴金属ナノ粒子修飾ニッケル線電極を作製できることが明らかになった。また、低濃度の貴金属イオン水溶液から微量の貴金属を析出させて特徴的な電極触媒能を発現できることがわかった。このように、貴金属を有効利用して電極触媒材料を簡便に調製できることは、学術的にも社会的にも意義深いうえ、燃料電池や電気化学計測用修飾電極としても応用可能と考える。

Report

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

    (9 results)

All 2024 2023 2021 Other

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

  • [Int'l Joint Research] 湖北大学(中国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] マレーシア国民大学(マレーシア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 湖北大学(中国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] マレーシア国民大学(マレーシア)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] 湖北大学(中国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Modification of nickel wire electrodes with platinum in the presence of copper ions via galvanic replacement reactions2024

    • Author(s)
      Sato Fumikazu, Naito Takuma, Shaheen Shah Syed, Cai Zhiwei, Chang Gang, He Yunbin, Oyama Munetaka
    • Journal Title

      Journal of Electroanalytical Chemistry

      Volume: 961 Pages: 118232-118232

    • DOI

      10.1016/j.jelechem.2024.118232

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Codeposition of Platinum and Gold on Nickel Wire Electrodes via Galvanic Replacement Reactions for Electrocatalytic Oxidation of Alcohols2021

    • Author(s)
      Funo Sota、Sato Fumikazu、Cai Zhiwei、Chang Gang、He Yunbin、Oyama Munetaka
    • Journal Title

      ACS Omega

      Volume: 6 Issue: 28 Pages: 18395-18403

    • DOI

      10.1021/acsomega.1c02393

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Noble Metal Nanoelectrocatalysts Deposited on Nickel Materials via Galvanic Replacement Reactions2023

    • Author(s)
      Oyama Munetaka, Naito Takuma, Adachi Masaki
    • Organizer
      74th Annual Meeting of the International Society of Electrochemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Noble Metal Nanoelectrocatalysts Prepared by Galvanic Replacement Reactions2021

    • Author(s)
      Munetaka Oyama
    • Organizer
      The 5th International Conference on Energy Materials and Nanotechnology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2021-04-28   Modified: 2025-01-30  

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