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Bias-free photoelectrochemical water splitting with photosystem II on a dye-sensitized photoanode wired to hydrogenase

Author

Listed:
  • Katarzyna P. Sokol

    (University of Cambridge)

  • William E. Robinson

    (University of Cambridge)

  • Julien Warnan

    (University of Cambridge)

  • Nikolay Kornienko

    (University of Cambridge)

  • Marc M. Nowaczyk

    (Ruhr-Universität Bochum)

  • Adrian Ruff

    (Ruhr-Universität Bochum)

  • Jenny Z. Zhang

    (University of Cambridge)

  • Erwin Reisner

    (University of Cambridge)

Abstract

Natural photosynthesis stores sunlight in chemical energy carriers, but it has not evolved for the efficient synthesis of fuels, such as H2. Semi-artificial photosynthesis combines the strengths of natural photosynthesis with synthetic chemistry and materials science to develop model systems that overcome nature’s limitations, such as low-yielding metabolic pathways and non-complementary light absorption by photosystems I and II. Here, we report a bias-free semi-artificial tandem platform that wires photosystem II to hydrogenase for overall water splitting. This photoelectrochemical cell integrated the red and blue light-absorber photosystem II with a green light-absorbing diketopyrrolopyrrole dye-sensitized TiO2 photoanode, and so enabled complementary panchromatic solar light absorption. Effective electronic communication at the enzyme–material interface was engineered using an osmium-complex-modified redox polymer on a hierarchically structured TiO2. This system provides a design protocol for bias-free semi-artificial Z schemes in vitro and provides an extended toolbox of biotic and abiotic components to re-engineer photosynthetic pathways.

Suggested Citation

  • Katarzyna P. Sokol & William E. Robinson & Julien Warnan & Nikolay Kornienko & Marc M. Nowaczyk & Adrian Ruff & Jenny Z. Zhang & Erwin Reisner, 2018. "Bias-free photoelectrochemical water splitting with photosystem II on a dye-sensitized photoanode wired to hydrogenase," Nature Energy, Nature, vol. 3(11), pages 944-951, November.
    • Handle: RePEc:nat:natene:v:3:y:2018:i:11:d:10.1038_s41560-018-0232-y
    DOI: 10.1038/s41560-018-0232-y
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    Cited by:

    1. Qi Dang & Wei Zhang & Jiqing Liu & Liting Wang & Deli Wu & Dejin Wang & Zhendong Lei & Liang Tang, 2023. "Bias-free driven ion assisted photoelectrochemical system for sustainable wastewater treatment," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    2. Hidalgo, D. & Martín-Marroquín, J.M., 2020. "Power-to-methane, coupling CO2 capture with fuel production: An overview," Renewable and Sustainable Energy Reviews, Elsevier, vol. 132(C).
    3. Rissman, Jeffrey & Bataille, Chris & Masanet, Eric & Aden, Nate & Morrow, William R. & Zhou, Nan & Elliott, Neal & Dell, Rebecca & Heeren, Niko & Huckestein, Brigitta & Cresko, Joe & Miller, Sabbie A., 2020. "Technologies and policies to decarbonize global industry: Review and assessment of mitigation drivers through 2070," Applied Energy, Elsevier, vol. 266(C).

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