Gas-diffusion and Direct-electron-transfer-type Bioanode for Hydrogen Oxidation with Oxygen-tolerant [NiFe]-hydrogenase as an Electrocatalyst

• Keisei So

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• Yuki Kitazumi

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• Osamu Shirai

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• Kouhei Kurita

  Department of Bioresource Science, College of Agriculture, Ibaraki University

• Hirofumi Nishihara

  Department of Bioresource Science, College of Agriculture, Ibaraki University

• Yoshiki Higuchi

  Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)

• Kenji Kano

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

Abstract

A membrane-bound [NiFe]-hydrogenase (MBH) from Hydrogenovibrio marinus allows the direct-electron-transfer (DET)-type bioelectrocatalysis for H2 oxidation and is an O2-tolerant promising enzyme for the construction of enzymatic H2–O2 biofuel cells. However, the oxidative and reversible inactivation called “anaerobic inactivation” limits the H2 oxidation at high potentials. In order to avoid this inhibition, we have constructed an MBH-adsorbed gas-diffusion-type electrode, in which H2 is spontaneously supplied to the electrode from the gas phase.

Journal

• Chemistry Letters

  Chemistry Letters 43 (10), 1575-1577, 2014-07-18

  Oxford University Press (OUP)

Keywords

• General Chemistry

Details

• CRID: 1360002219105579136
• NII Article ID: 130004427222
• DOI: 10.1246/cl.140622
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/43/10/1575/55644095/cl.140622.pdf
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  • CiNii Articles