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Highly active deficient ternary sulfide photoanode for photoelectrochemical water splitting

Author

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  • Haimei Wang

    (Shandong University)

  • Yuguo Xia

    (Shandong University)

  • Haiping Li

    (Shandong University)

  • Xiang Wang

    (Shandong University)

  • Yuan Yu

    (Shandong University)

  • Xiuling Jiao

    (Shandong University)

  • Dairong Chen

    (Shandong University)

Abstract

The exploration of photoanode materials with high efficiency and stability is the eternal pursuit for the realization of practically solar-driven photoelectrochemical (PEC) water splitting. Here we develop a deficient ternary metal sulfide (CdIn2S4) photoanode, and its PEC performance is significantly enhanced by introducing surface sulfur vacancies, achieving a photocurrent density of 5.73 mA cm−2 at 1.23 V vs. RHE and 1 Sun with an applied bias photon-to-current efficiency of 2.49% at 0.477 V vs. RHE. The experimental characterizations and theoretical calculations highlight the enhanced effect of surface sulfur vacancies on the interfacial charge separation and transfer kinetics, which also demonstrate the restrained surface states distribution and the transformation of active sites after introducing surface sulfur vacancies. This work may inspire more excellent work on developing sulfide-based photoanodes.

Suggested Citation

  • Haimei Wang & Yuguo Xia & Haiping Li & Xiang Wang & Yuan Yu & Xiuling Jiao & Dairong Chen, 2020. "Highly active deficient ternary sulfide photoanode for photoelectrochemical water splitting," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16800-w
    DOI: 10.1038/s41467-020-16800-w
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    Cited by:

    1. Hamdani, I.R. & Bhaskarwar, A.N., 2021. "Recent progress in material selection and device designs for photoelectrochemical water-splitting," Renewable and Sustainable Energy Reviews, Elsevier, vol. 138(C).
    2. Biswas, Neeraj Kumar & Srivastav, Anupam & Saxena, Sakshi & Verma, Anuradha & Dutta, Runjhun & Srivastava, Manju & Upadhyay, Sumant & Satsangi, Vibha Rani & Shrivastav, Rohit & Dass, Sahab, 2023. "Temperature of photoanode for photoelectrochemical water oxidation," Renewable Energy, Elsevier, vol. 208(C), pages 504-511.

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