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Generation of carbon active sites by controlling the location, amounts and types of surface oxygen functional groups

Research Project

Project/Area Number 21K14728
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionKurume National College of Technology

Principal Investigator

Gabe Atsushi  久留米工業高等専門学校, 生物応用化学科, 准教授 (10840142)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords炭素材料 / エッジサイト / 含酸素官能基 / アクティブサイト / 酸素還元反応 / 酸素官能基
Outline of Research at the Start

炭素は芳香族網面が積み重なった構造をしており網面中の端のエッジ面は基底面と比較し反応性に非常に富み、炭素ガス化反応や燃料電池の空気極で進行する酸素還元反応といった様々な反応に関与する。エッジ面に存在するアクティブサイトは炭素のガス化反応や酸素還元反応の活性点に変形すると考えられているが生成や消滅機構に関しては不明瞭な点が多い。そこで本研究では炭素の含酸素官能基に着目しアクティブサイトの制御を目標とする。構造の違いによるアクティブサイトの活性の強弱も明らかにし、炭素エッジ面で進行する多様な反応において高活性を実現する世界最先端のエネルギー関連材料の開発にも貢献していく。

Outline of Final Research Achievements

Surface chemistry of the edge carbons are relevant to a variety of reactions and carbon active sites are key topics for catalytic reactions such as oxygen reduction reaction and hydrolysis of cellulose. Herein, oxidized carbon black and boron-doped diamond powder are used as model catalyst. Carbon black is treated with each of three different oxidizing agents to introduce oxygen-containing functional groups and the resulting oxidized carbon blacks are used as a model catalyst for the hydrolysis of cellulose. This study reveals carboxyl groups and phenol groups, act as catalytic sites with almost equal activity, as long as they are present on the external surface. Moreover, the interaction between the active phase and the boron-doped diamond powder support determines the performance of oxygen reduction reaction when modified with FePc or Fe-C3N4 species as it strongly influences the charge transfer between the support and the active sites.

Academic Significance and Societal Importance of the Research Achievements

バイオマス資源を将来的に有効活用するには環境にやさしく繰返し使えてかつ安価な触媒である炭素材料の有効活用が不可欠である。本研究では様々なエネルギー源として活用出来るグルコースを木質バイオマスから効率的に転換するべく、新規の炭素材料の創製を進めた。検討の結果、効率的にグルコース転換を可能にする炭素系触媒の創製のための因子を明確化することに成功した。

Report

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

    (8 results)

All 2023 2022 2021 Other

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

  • [Int'l Joint Research] アリカンテ大学 材料科学研究所(スペイン)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Exploring the effect of surface chemistry and particle size of boron-doped diamond powder as catalyst and catalyst support for the oxygen reduction reaction2023

    • Author(s)
      Alemany-Molina Gabriel、Martinez-Sanchez Beatriz、Gabe Atsushi、Kondo Takeshi、Cazorla-Amoros Diego、Morallon Emilia
    • Journal Title

      Electrochimica Acta

      Volume: 446 Pages: 142121-142121

    • DOI

      10.1016/j.electacta.2023.142121

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In-Depth Analysis of Key Factors Affecting the Catalysis of Oxidized Carbon Blacks for Cellulose Hydrolysis2021

    • Author(s)
      Gabe Atsushi、Takatsuki Akira、Hiratani Masahiko、Kaneeda Masato、Kurihara Yoshiaki、Aoki Takayuki、Mashima Hiroki、Ishii Takafumi、Ozaki Jun-ichi、Nishihara Hirotomo、Kyotani Takashi
    • Journal Title

      ACS Catalysis

      Volume: 12 Issue: 2 Pages: 892-905

    • DOI

      10.1021/acscatal.1c04054

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] 酸点の種類と量が制御された炭素系セルロース加水分解触媒 の開発2023

    • Author(s)
      長野太洋, 我部篤
    • Organizer
      第25回化学工学会学生発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Exploring the effect of surface chemistry and particle size of boron-doped diamond powder as catalyst and catalyst support for the oxygen reduction reaction2022

    • Author(s)
      Alemany-Molina Gabriel、Martinez-Sanchez Beatriz、Gabe Atsushi、Kondo Takeshi、Cazorla-Amoros Diego、Morallon Emilia
    • Organizer
      Carbon2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] セルロースの加水分解反応における酸化カーボンブラックの触媒作用の解明2021

    • Author(s)
      我部篤, 高月瑛, 平谷正彦, 金枝雅人, 栗原祥晃, 青木崇行, 間嶋寛紀, 石井孝文, 尾崎純一, 西原洋知, 京谷隆
    • Organizer
      炭素材料学会 年会
    • Related Report
      2021 Research-status Report
  • [Presentation] セルロースの加水分解反応における酸化カーボンブラックの触媒作用の解明2021

    • Author(s)
      我部篤, 高月瑛, 平谷正彦, 金枝雅人, 栗原祥晃, 青木崇行, 間嶋寛紀, 石井孝文, 尾崎純一, 西原洋知, 京谷隆
    • Organizer
      炭素材料117委員会第338回委員会
    • Related Report
      2021 Research-status Report
  • [Remarks] リサーチハイライト

    • URL

      https://five-star.sanken.osaka-u.ac.jp/highlights/2021/

    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2024-01-30  

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