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Development of a flow-type multi-step enzymatic fuel cell implementing a mechanism to remove inhibitors of power generation

Research Project

Project/Area Number 19K15368
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 27040:Biofunction and bioprocess engineering-related
Research InstitutionIchinoseki National College of Technology

Principal Investigator

Homma Toshimasa  一関工業高等専門学校, その他部局等, 准教授 (20818538)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords燃料電池 / 酵素反応 / エネルギー変換 / 多段階反応 / モバイル電源 / 酵素燃料電池 / 電極触媒 / 電極修飾
Outline of Research at the Start

複数の代謝酵素を電極触媒とした酵素燃料電池は、燃焼を経ずに糖やアルコールを二酸化炭素と水まで酸化でき、それらの持つ膨大な化学エネルギーを直接電気エネルギーに変換できる。しかし従来のバッチ式では電解液に溜まった生成物が酵素反応を阻害するため、途中で発電が止まってしまう問題があった。本研究では、循環型社会に適した次世代モバイル電源の創出を目指し、発電阻害物質除去機構を実装した酵素燃料電池の構築に取り組む。

Outline of Final Research Achievements

A fuel cell was fabricated using an enzyme as an electrocatalyst to convert the chemical energy of formic acid into electrical energy. An electrode was fabricated to obtain electrical energy from oxalic acid, but little current was obtained. The stability, activity, and orientation of the immobilized enzymes are thought to be important factors in improving the output.

Academic Significance and Societal Importance of the Research Achievements

モバイル機器の機能が充実していくのに伴い、安全かつ大容量の電源が必要になってきている。糖やアルコールの体積あたりのエネルギー密度はリチウムイオン電池よりも優れており、それらを燃料として発電できる酵素燃料電池は情報社会と循環型社会の両立に適した電源といえる。本研究では、長時間継続して発電可能な酵素燃料電池の開発を目指した。残念ながら期間中の開発はならなかったが、糖やアルコールの化学エネルギーを全て取り出すには多段階酵素反応に関わる全ての酵素の活性化や安定化、集積化が重要であることが確認できた。本研究成果は高性能な酵素燃料電池の開発に役立つものと思われる。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (5 results)

All 2023 2021 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Simple production of resilin-like protein hydrogels using the Brevibacillus secretory expression system and column-free purification2023

    • Author(s)
      Toshimasa Homma, Shu Terui, Fuki Yokoyama, Saki Okino, Sora Ohta, Chihiro Kato, Naoki Haraguchi, Ikuhide Fujisawa, Shinichi Itsuno, Lily Zuin Ping Ang
    • Journal Title

      Biotechnology and Bioengineering

      Volume: 120 Issue: 1 Pages: 194-202

    • DOI

      10.1002/bit.28267

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Protocatechuic acid fuel cell: A sustainable energy generation system based on microbial metabolism of lignin-derived aromatic compounds2021

    • Author(s)
      Homma Toshimasa、Tsurusaki Yoshino、Kamimura Naofumi、Masai Eiji、Ang Lily Zuin Ping
    • Journal Title

      Biomass and Bioenergy

      Volume: 154 Pages: 106254-106254

    • DOI

      10.1016/j.biombioe.2021.106254

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Effects of Electrode Surface Modification on Electrochemical Oxidation of Protocatechuic Acid2021

    • Author(s)
      Ami Suzuki, Lily Zuin Ping Ang, Naofumi Kamimura, Eiji Masai, Toshimasa Homma
    • Organizer
      6th STI-Gigaku 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Electrochemical polymerization of aniline in a polystyrene sulfonate solution and characterization of the resulting film2019

    • Author(s)
      Toshimasa Homma, Hibiki Chiba, Lily Zuin Ping Ang
    • Organizer
      4th STI-Gigaku
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Composition control of polyaniline/poly(acrylic acid) films for enzyme electrodes2019

    • Author(s)
      Toshimasa Homma, Lily Zuin Ping Ang
    • Organizer
      第29回日本MRS年次大会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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