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Integrated photosystem II-based photo-bioelectrochemical cells

Author

Listed:
  • Omer Yehezkeli

    (Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem)

  • Ran Tel-Vered

    (Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem)

  • Julian Wasserman

    (Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem)

  • Alexander Trifonov

    (Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem)

  • Dorit Michaeli

    (The Silberman Institute of Life Sciences, The Minerva Center for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem)

  • Rachel Nechushtai

    (The Silberman Institute of Life Sciences, The Minerva Center for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem)

  • Itamar Willner

    (Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem)

Abstract

Photosynthesis is a sustainable process that converts light energy into chemical energy. Substantial research efforts are directed towards the application of the photosynthetic reaction centres, photosystems I and II, as active components for the light-induced generation of electrical power or fuel products. Nonetheless, no integrated photo-bioelectrochemical device that produces electrical power, upon irradiation of an aqueous solution that includes two inter-connected electrodes is known. Here we report the assembly of photobiofuel cells that generate electricity upon irradiation of biomaterial-functionalized electrodes in aqueous solutions. The cells are composed of electrically contacted photosystem II-functionalized photoanodes and an electrically wired bilirubin oxidase/carbon nanotubes-modified cathode. Illumination of the photoanodes yields the oxidation of water to O2 and the transfer of electrons through the external circuit to the cathode, where O2 is re-reduced to water.

Suggested Citation

  • Omer Yehezkeli & Ran Tel-Vered & Julian Wasserman & Alexander Trifonov & Dorit Michaeli & Rachel Nechushtai & Itamar Willner, 2012. "Integrated photosystem II-based photo-bioelectrochemical cells," Nature Communications, Nature, vol. 3(1), pages 1-7, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1741
    DOI: 10.1038/ncomms1741
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