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Electrochemical self-assembly of metal/organic hybrid electrode for CO2 reduction electrocatalysis

Research Project

Project/Area Number 22K20562
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0502:Inorganic/coordination chemistry, analytical chemistry, inorganic materials chemistry, energy-related chemistry, and related fields
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Tsuda Yuki  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 研究員 (80964189)

Project Period (FY) 2022-08-31 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords二酸化炭素還元 / 電極触媒 / 無機/有機ハイブリッド材料 / 電解析出法 / 電気化学的CO2還元 / 二酸化炭素電解 / 無機/有機ハイブリッド / 電気化学 / 高分子 / 電解析出 / 導電性高分子
Outline of Research at the Start

CO2の効率的なエネルギー資源への変換に向け、CO2RR(CO2 reduction reaction)高活性化と還元生成物選択性の向上を実現する高分子に金属ナノ粒子を導入した電極を基盤とする金属/有機ハイブリッドCO2RR電極触媒を開発する。これにより、多様なスケール・環境で、大気中の不要なCO2から我が国では自立供給できない炭化水素を生成可能な持続可能なシステムの構築を目指す。

Outline of Final Research Achievements

In this study, a metal/organic hybrid electrocatalyst was developed with the objective of achieving highly active and highly selective electrochemical reduction of carbon dioxide (CO2). The catalyst was designed to combine a metal with high CO2; electrolysis activity, which is naturally present in the metal, with a polymer that is expected to stabilise the electrolytic reaction intermediates.
Copper, which is known to produce hydrocarbons, was selected as the metal component, while luminol and melamine were selected as the organic components, as they have been demonstrated to adsorb CO2 to a reasonable extent and are expected to be highly reactive due to their high cation density. Luminol and melamine were polymerised by electrolytic polymerisation on carbon paper, the substrate, in order to achieve good contact with the substrate and high conductivity. A metallic copper coating was applied to the polymer film to create a hybrid catalyst comprising both a metal and an organic component.

Academic Significance and Societal Importance of the Research Achievements

本研究で目指した、金属/有機ハイブリッドCO2還元電極触媒は、金属がCO2を還元し、高分子がCO2電解生成物の安定化を担うという新しい考え方である。これにより、高活性・高選択性を両立するCO2電解還元触媒の実現が期待できる。導電性基板上に有機物を電解重合してその上に金属を電解析出法で得られることで金属/有機ハイブリッド電極を実証した。電解重合も電解析出法も、高温や高圧を要しない溶液プロセスであり、環境負荷が小さい手法である。金属/有機ハイブリッド電極の最適化までには至っていないが、作製可能であることの確認という点において有意義であり、コンセプト実証への第一歩であると確信している。

Report

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

    (6 results)

All 2024 2023 2022

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Electrodeposition of Cu with Amino Acids toward Electrocatalytic Enhancement of CO? Reduction Reaction2024

    • Author(s)
      Tsuda Yuki、Yoshii Kazuki、Gunji Takao、Takeda Sahori、Takeichi Nobuhiko
    • Journal Title

      Journal of The Electrochemical Society

      Volume: - Issue: 5 Pages: 054507-054507

    • DOI

      10.1149/1945-7111/ad44de

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Electrochemical Reduction from CO2 to CH4 by Electrodeposited Cu/L-Histidine Hybrid Materials2023

    • Author(s)
      Yuki Tsuda, Sahori Takeda, Nobuhiko Takeichi
    • Organizer
      244th ECS meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CO2電解還元触媒へ向けた Cu/アミノ酸ハイブリッド膜の電解析出2023

    • Author(s)
      津田勇希, 竹田さほり, 竹市信彦
    • Organizer
      第84回応用物理学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] マイクロ波水熱反応によるCu2Oの合成とアミノ酸添加効果2023

    • Author(s)
      津田勇希, 竹田さほり, 竹市信彦
    • Organizer
      2023年電気化学秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 銅/アミノ酸ハイブリッド電解析出膜による二酸化炭素の電解還元2023

    • Author(s)
      津田勇希, 竹田さほり, 竹市信彦
    • Organizer
      電気化学会第90回大会
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 金属有機複合薄膜およびその製造方法、二酸化炭素還元電極、ならびに二酸化炭素の還元方法2022

    • Inventor(s)
      津田勇希, 竹市信彦
    • Industrial Property Rights Holder
      国立研究開発法人産業技術総合研究所
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2022 Research-status Report

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Published: 2022-09-01   Modified: 2025-01-30  

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