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Atomic layer deposition triggered Fe-In-S cluster and gradient energy band in ZnInS photoanode for improved oxygen evolution reaction

Author

Listed:
  • Linxing Meng

    (Soochow University)

  • Jinlu He

    (Beijing Normal University)

  • Xiaolong Zhou

    (Functional Thin Films Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences)

  • Kaimo Deng

    (Soochow University)

  • Weiwei Xu

    (Soochow University)

  • Pinit Kidkhunthod

    (Synchrotron Light Research Institute)

  • Run Long

    (Beijing Normal University)

  • Yongbing Tang

    (Functional Thin Films Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences)

  • Liang Li

    (Soochow University)

Abstract

Vast bulk recombination of photo-generated carriers and sluggish surface oxygen evolution reaction (OER) kinetics severely hinder the development of photoelectrochemical water splitting. Herein, through constructing a vertically ordered ZnInS nanosheet array with an interior gradient energy band as photoanode, the bulk recombination of photogenerated carriers decreases greatly. We use the atomic layer deposition technology to introduce Fe-In-S clusters into the surface of photoanode. First-principles calculations and comprehensive characterizations indicate that these clusters effectively lower the electrochemical reaction barrier on the photoanode surface and promote the surface OER reaction kinetics through precisely affecting the second and third steps (forming processes of O* and OOH*) of the four-electron reaction. As a result, the optimal photoanode exhibits the high performance with a significantly enhanced photocurrent of 5.35 mA cm−2 at 1.23 VRHE and onset potential of 0.09 VRHE. Present results demonstrate a robust platform for controllable surface modification, nanofabrication, and carrier transport.

Suggested Citation

  • Linxing Meng & Jinlu He & Xiaolong Zhou & Kaimo Deng & Weiwei Xu & Pinit Kidkhunthod & Run Long & Yongbing Tang & Liang Li, 2021. "Atomic layer deposition triggered Fe-In-S cluster and gradient energy band in ZnInS photoanode for improved oxygen evolution reaction," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25609-0
    DOI: 10.1038/s41467-021-25609-0
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    Cited by:

    1. Ling Zhou & Daying Guo & Lianhui Wu & Zhixi Guan & Chao Zou & Huile Jin & Guoyong Fang & Xi’an Chen & Shun Wang, 2024. "A restricted dynamic surface self-reconstruction toward high-performance of direct seawater oxidation," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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