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MOFを基盤としたカーボンアロイ触媒および高性能非白金燃料電池の設計・開発

Research Project

Project/Area Number 15F15377
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Reaction engineering/Process system
Research InstitutionTokyo Institute of Technology

Principal Investigator

山口 猛央  東京工業大学, 科学技術創成研究院, 教授 (30272363)

Co-Investigator(Kenkyū-buntansha) UNNI SREEKUTTAN  東京工業大学, 科学技術創成研究院, 外国人特別研究員
Project Period (FY) 2015-11-09 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2017: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2016: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2015: ¥600,000 (Direct Cost: ¥600,000)
KeywordsSolid Alkaline Fuel Cell / Oxygen Reduction / Metal Organic Framework / Electrocatalyst / ZIF / Fuel Cell / Pt-Free Catalysts / Imidazolate Framework
Outline of Annual Research Achievements

Development of cost-effective electrocatalyst for oxygen reduction reaction (ORR) for low-temperature fuel cells (Solid proton/alkaline conducting membrane fuel cells) is one of the major priority research worldwide. In the present case, we have synthesized trimetallic zeolitic imidazole framework (t-ZIF) and used it as a single precursor for the preparation of the precious metal-free catalyst. t-ZIF contain Co, Fe, and Zn as metal centres and 2-methylimidazole as a ligand. During carbonization, t-ZIF produces nitrogen and Fe/Co-Nx doped carbon/ carbon nanotubes alloyed with metal/metal oxide particles encased inside the carbon structures (FeCo-NCZ). Since the electrocatalyst developed from a single precursor, a uniform distribution of active reaction centres (Fe-Nx, Co-Nx, pyridinic/graphitic coordinated nitrogen, etc.) on the surface of the electrocatalyst is obtained. Highly porous nature of the carbon achieved by the leaching-out of Zn at high temperature. The peculiar morphology and reasonably good surface area assist better mass transport and fast electron transport. ORR performance of FeCo-NCZ in alkaline (0.1 M KOH) condition shows the onset potential and half-wave potential of 1.04 V and 0.91 V vs. RHE respectively, which is more positive to commercial Pt/C catalyst. FeCo-NCZ reduces oxygen molecule through direct 4 e- pathways and shows reaction kinetic similar to Pt/C. More importantly, FeCo-NCZ displays high fuel tolerance and electrochemical stability in alkaline condition even at 60 oC. Our study shows FeCo-NCZ is a suitable alternative to Pt/C.

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (3 results)

All 2017 2016

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

  • [Journal Article] Direct synthesis of a carbon nanotube interpenetrated doped porous carbon alloy as a durable Pt-free electrocatalyst for the oxygen reduction reaction in an alkaline medium2017

    • Author(s)
      Sreekuttan M. Unni, Gopinathan M. Anilkumar, Masashi Matsumoto, Takanori Tamaki, Hideto Imai and Takeo Yamaguchi
    • Journal Title

      Sustainable Energy Fuels

      Volume: 1 Issue: 7 Pages: 1524-1532

    • DOI

      10.1039/c7se00249a

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] Metal organic framework derived dual metal co-doped porous carbon for oxygen reduction reaction in alkaline condition2016

    • Author(s)
      SREEKUTTAN M. Unni
    • Organizer
      JSPS-DST Asian Academic Seminar 2016(国際学会)
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2016-12-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Carbon alloy electrocatalysts derived from metal organic framework for oxygen reduction reaction2016

    • Author(s)
      SREEKUTTAN M. Unni, G.M. Anilkumar, M. Matsumoto, T. Tamaki, T. Yamaguchi
    • Organizer
      The 57th Battery symposium in Japan, The 20th International Symposium on Batteries, Fuel cells and Capacitor
    • Place of Presentation
      Chiba, Japan
    • Year and Date
      2016-11-29
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2015-11-26   Modified: 2024-03-26  

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