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Ultrastable low-bias water splitting photoanodes via photocorrosion inhibition and in situ catalyst regeneration

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  • Yongbo Kuang

    (The University of Tokyo
    Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem))

  • Qingxin Jia

    (The University of Tokyo
    Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem))

  • Guijun Ma

    (The University of Tokyo
    Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem))

  • Takashi Hisatomi

    (The University of Tokyo
    Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem))

  • Tsutomu Minegishi

    (The University of Tokyo
    Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem))

  • Hiroshi Nishiyama

    (The University of Tokyo
    Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem))

  • Mamiko Nakabayashi

    (Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem)
    Institute of Engineering Innovation, The University of Tokyo)

  • Naoya Shibata

    (Institute of Engineering Innovation, The University of Tokyo)

  • Taro Yamada

    (The University of Tokyo
    Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem))

  • Akihiko Kudo

    (Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem)
    Science University of Tokyo)

  • Kazunari Domen

    (The University of Tokyo
    Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem))

Abstract

Photoelectrochemical (PEC) water splitting offers a means for distributed solar hydrogen production. However, the lack of stable and cost-effective photoanodes remains a bottleneck that hampers their practical applications. Here we show that particulate Mo-doped BiVO4 water oxidation photoanodes, without costly and complex surface modifications, can possess comparable stability to that of solar cells. The photoanode exhibits enhanced intrinsic photocorrosion inhibition and self-generation and regeneration of oxygen evolution catalysts, which allows stable oxygen evolution for >1,000 h at potentials as low as 0.4 V versus the reversible hydrogen electrode. The significantly improved photocorrosion resistance and charge separation are attributed to the unusual high-temperature treatment. In situ catalyst regeneration is found to be a site-specific and oxygen evolution rate change-induced process. Our findings indicate the potential of PEC water splitting to compete with other solar hydrogen production solutions, and should open new opportunities for the development of feasible PEC water splitting systems.

Suggested Citation

  • Yongbo Kuang & Qingxin Jia & Guijun Ma & Takashi Hisatomi & Tsutomu Minegishi & Hiroshi Nishiyama & Mamiko Nakabayashi & Naoya Shibata & Taro Yamada & Akihiko Kudo & Kazunari Domen, 2017. "Ultrastable low-bias water splitting photoanodes via photocorrosion inhibition and in situ catalyst regeneration," Nature Energy, Nature, vol. 2(1), pages 1-9, January.
    • Handle: RePEc:nat:natene:v:2:y:2017:i:1:d:10.1038_nenergy.2016.191
    DOI: 10.1038/nenergy.2016.191
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    Cited by:

    1. Beibei Zhang & Shiqiang Yu & Ying Dai & Xiaojuan Huang & Lingjun Chou & Gongxuan Lu & Guojun Dong & Yingpu Bi, 2021. "Nitrogen-incorporation activates NiFeOx catalysts for efficiently boosting oxygen evolution activity and stability of BiVO4 photoanodes," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    2. Hao Wu & Lei Zhang & Aijun Du & Rowshanak Irani & Roel Krol & Fatwa F. Abdi & Yun Hau Ng, 2022. "Low-bias photoelectrochemical water splitting via mediating trap states and small polaron hopping," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    3. Keisuke Obata & Michael Schwarze & Tabea A. Thiel & Xinyi Zhang & Babu Radhakrishnan & Ibbi Y. Ahmet & Roel Krol & Reinhard Schomäcker & Fatwa F. Abdi, 2023. "Solar-driven upgrading of biomass by coupled hydrogenation using in situ (photo)electrochemically generated H2," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    4. Laura Clarizia & Danilo Russo & Ilaria Di Somma & Roberto Andreozzi & Raffaele Marotta, 2017. "Hydrogen Generation through Solar Photocatalytic Processes: A Review of the Configuration and the Properties of Effective Metal-Based Semiconductor Nanomaterials," Energies, MDPI, vol. 10(10), pages 1-21, October.
    5. Changhao Liu & Ningsi Zhang & Yang Li & Rongli Fan & Wenjing Wang & Jianyong Feng & Chen Liu & Jiaou Wang & Weichang Hao & Zhaosheng Li & Zhigang Zou, 2023. "Long-term durability of metastable β-Fe2O3 photoanodes in highly corrosive seawater," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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