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Development of long-lived noble metal-saving catalysts for efficient recycling of carbon dioxide

Research Project

Project/Area Number 20K15165
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 29020:Thin film/surface and interfacial physical properties-related
Research InstitutionHokkaido University

Principal Investigator

Kunisada Yuji  北海道大学, 工学研究院, 助教 (00591075)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords水素 / ギ酸 / サブnm触媒 / グラフェン / MXene / 第一原理計算 / 単原子触媒 / 二酸化炭素 / 水素貯蔵 / 燃料電池
Outline of Research at the Start

二酸化炭素の水素化によるギ酸の生成は,二酸化炭素の再資源化と水素貯蔵に有効である.一方,二酸化炭素の水素化およびギ酸の脱水素化において高い触媒活性を示す貴金属触媒は,非常に高価で安定供給が困難である.そこで本研究では,安価な銅触媒の触媒活性向上と長寿命化を同時に実現する触媒担体の開発を目的とする.
令和2年度は,様々な担体材料表面上での銅触媒の拡散特性を第一原理計算を用いて調査し,長寿命な触媒を実現する担体材料を開発する.
令和3年度および令和4年度は,長寿命であることが判明した触媒担体を用いた場合の触媒活性を第一原理計算を用いて調査し,長寿命かつ高い触媒活性を発現する新規触媒担体を開発する.

Outline of Final Research Achievements

We performed first-principles calculations to investigate the dynamics of sub-nanocluster metal catalysts on various catalyst supports and their catalytic activity for the (de)hydrogenation of formic acid. In particular, we considered chemically-modified MXene and graphene, which are two-dimensional materials with catalyst anchor sites, i.e., defects and dopants, as catalyst supports. Firstly, we revealed that using light-element-doped graphene as a catalyst support suppresses sub-nanocluster catalyst diffusion and detachment, enabling a prolonged catalyst lifetime. In addition, depending on the combination of catalysts and supports, we elucidated that the selectivity of catalytic reactions can be improved compared to those of bulk catalysts.

Academic Significance and Societal Importance of the Research Achievements

本研究課題で取り扱ったサブナノクラスター触媒は高い比表面積を有するため,重量当たりの活性サイトを増やし,貴金属の使用量を削減することができる.本研究課題で得られた知見に基づき最適な触媒担体を選択することにより省貴金属で安価な触媒が実現することで,有機分子を用いた水素貯蔵の低コスト化や大規模化が可能である.また,本研究課題で得られた触媒の安定性や担体効果に関するデータベースは,様々な触媒反応についても応用可能なものである.

Report

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

    (12 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Chemical modification of graphene for atomic-scale catalyst supports2022

    • Author(s)
      Kunisada Yuji、Sakaguchi Norihito
    • Journal Title

      Nano Express

      Volume: 3 Issue: 4 Pages: 042001-042001

    • DOI

      10.1088/2632-959x/aca41f

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anisotropic Growth of Copper Nanorods Mediated by Cl- Ions2022

    • Author(s)
      Saw Min Jia、Nguyen Mai Thanh、Kunisada Yuji、Tokunaga Tomoharu、Yonezawa Tetsu
    • Journal Title

      ACS Omega

      Volume: 7 Issue: 8 Pages: 7414-7420

    • DOI

      10.1021/acsomega.2c00359

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Single Pt Atoms on N-Doped Graphene: Atomic Structure and Local Electronic States2021

    • Author(s)
      Sugimoto Ryo、Segawa Yuhiro、Suzuta Akio、Kunisada Yuji、Uchida Tsutomu、Yamazaki Kenji、Gohara Kazutoshi
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 125 Issue: 5 Pages: 2900-2906

    • DOI

      10.1021/acs.jpcc.0c08811

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Oxygen Reduction Reaction Activity of Pt Sub-nano Clusters Supported on Graphene2020

    • Author(s)
      HASEGAWA Shun、KUNISADA Yuji、SAKAGUCHI Norihito
    • Journal Title

      Vacuum and Surface Science

      Volume: 63 Issue: 8 Pages: 413-418

    • DOI

      10.1380/vss.63.413

    • NAID

      130007886642

    • ISSN
      2433-5835, 2433-5843
    • Year and Date
      2020-08-10
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] グラフェン担持白金単原子触媒の安定性における湿潤環境の影響2023

    • Author(s)
      國貞 雄治,坂口 紀史
    • Organizer
      日本金属学会2023年春期講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 軽元素置換グラフェン担持白金単原子の触媒特性における磁性金属基板の影響2022

    • Author(s)
      新美 和希,國貞 雄治,坂口 紀史
    • Organizer
      日本金属学会2022年秋期講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Adsorption and Diffusion Properties of Single-Atom Catalysts on Light Element-doped Graphene/Magnetic Metal Substrates2022

    • Author(s)
      Yuji Kunisada, Kazuki Niimi, Norihito Sakaguchi
    • Organizer
      The 22nd International Vacuum Congress (IVC-22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] スルホン酸がグラフェン担持白金単原子の安定性に与える影響2022

    • Author(s)
      國貞 雄治,坂口 紀史
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 磁性金属基板担持軽元素置換グラフェン上の白金触媒の吸着特性2021

    • Author(s)
      新美 和希,國貞 雄治,坂口 紀史
    • Organizer
      日本金属学会2021年秋期講演大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 吸着分子がグラフェン担持白金単原子の安定性に与える影響2021

    • Author(s)
      國貞 雄治,坂口 紀史
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Mo系MXene担持単原子触媒の酸素還元反応およびギ酸分解反応への応用2021

    • Author(s)
      國貞 雄治,坂口 紀史
    • Organizer
      日本金属学会2021年春期講演大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 酸素還元反応及びギ酸脱水素化反応におけるMXeneの触媒特性評価2020

    • Author(s)
      國貞 雄治,坂口 紀史
    • Organizer
      日本金属学会2020年秋期講演大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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