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A fully protected hydrogenase/polymer-based bioanode for high-performance hydrogen/glucose biofuel cells

Author

Listed:
  • Adrian Ruff

    (Ruhr-Universität Bochum)

  • Julian Szczesny

    (Ruhr-Universität Bochum)

  • Nikola Marković

    (Ruhr-Universität Bochum)

  • Felipe Conzuelo

    (Ruhr-Universität Bochum)

  • Sónia Zacarias

    (Universidade Nova de Lisboa)

  • Inês A. C. Pereira

    (Universidade Nova de Lisboa)

  • Wolfgang Lubitz

    (Max-Planck-Institut für Chemische Energiekonversion)

  • Wolfgang Schuhmann

    (Ruhr-Universität Bochum)

Abstract

Hydrogenases with Ni- and/or Fe-based active sites are highly active hydrogen oxidation catalysts with activities similar to those of noble metal catalysts. However, the activity is connected to a sensitivity towards high-potential deactivation and oxygen damage. Here we report a fully protected polymer multilayer/hydrogenase-based bioanode in which the sensitive hydrogen oxidation catalyst is protected from high-potential deactivation and from oxygen damage by using a polymer multilayer architecture. The active catalyst is embedded in a low-potential polymer (protection from high-potential deactivation) and covered with a polymer-supported bienzymatic oxygen removal system. In contrast to previously reported polymer-based protection systems, the proposed strategy fully decouples the hydrogenase reaction form the protection process. Incorporation of the bioanode into a hydrogen/glucose biofuel cell provides a benchmark open circuit voltage of 1.15 V and power densities of up to 530 µW cm−2 at 0.85 V.

Suggested Citation

  • Adrian Ruff & Julian Szczesny & Nikola Marković & Felipe Conzuelo & Sónia Zacarias & Inês A. C. Pereira & Wolfgang Lubitz & Wolfgang Schuhmann, 2018. "A fully protected hydrogenase/polymer-based bioanode for high-performance hydrogen/glucose biofuel cells," Nature Communications, Nature, vol. 9(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06106-3
    DOI: 10.1038/s41467-018-06106-3
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