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- W4384162246 abstract "Monoclinic BiVO4 is one of the most promising photoanode materials for solar water splitting. The photoelectrochemical performance of a BiVO4 photoanode could be significantly influenced by the noncovalent interactions of redox-inert metal cations at the photoanode-electrolyte interfaces, but this point has not been well investigated. In this work, we studied the Cs+-dependent surface reconstruction and passivation of BiVO4 photoanodes. Owing to the structure breaker nature of Cs+, the Cs+ at the BiVO4 photoanode-electrolyte interfaces participated in BiVO4 surface photocorrosion to form a Cs+-doped bismuth vanadium oxide amorphous thin layer, which inhibited the continuous photocorrosion of BiVO4 and promoted surface charge transfer and water oxidation. The resulting cocatalyst-free BiVO4 photoanodes achieved 3.3 mA cm-2 photocurrent for water oxidation. With the modification of FeOOH catalysts, the photocurrent at 1.23 VRHE reached 5.1 mA cm-2, and a steady photocurrent of 3.0 mA cm-2 at 0.8 VRHE was maintained for 30 h. This work provides new insights into the understanding of Cs+ chemistry and the effects of redox-inert cations at the electrode-electrolyte interfaces." @default.
- W4384162246 created "2023-07-14" @default.
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- W4384162246 date "2023-07-13" @default.
- W4384162246 modified "2023-10-09" @default.
- W4384162246 title "Surface Reconstruction and Passivation of BiVO<sub>4</sub> Photoanodes Depending on the “Structure Breaker” Cs<sup>+</sup>" @default.
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- W4384162246 doi "https://doi.org/10.1021/jacsau.3c00100" @default.
- W4384162246 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37502161" @default.
- W4384162246 hasPublicationYear "2023" @default.
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