Photochemical and electrochemical co-regulation of the BiVO4 photoanode for water splitting

Huimin Xu; Dongbo Xu; Shuang Deng; Dan Li; Tianyao Jiang; Longhua Li; Weiqiang Fan; Yong Lei; Weidong Shi

doi:10.1039/D2CC07093F

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Photochemical and electrochemical co-regulation of the BiVO₄ photoanode for water splitting†

Huimin Xu,^a Dongbo Xu,*^a Shuang Deng,^a Dan Li,^a Tianyao Jiang,^a Longhua Li,

^a Weiqiang Fan,^a Yong Lei

^b and Weidong Shi

*^a

Author affiliations

* Corresponding authors

^a School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, P. R. China
E-mail: xudb39@ujs.edu.cn, swd1978@ujs.edu.cn

^b Institute of Physics and IMN MacroNano®, Ilmenau University of Technology, IImenau 98693, Germany

Abstract

A novel pretreatment strategy that can regulate the amount of oxygen vacancies (O_vac) across the wormlike-BiVO₄ photoanode by photochemical and electrochemical co-processing. Upon decorating NiFeO_x as an oxygen evolution cocatalyst for promoting the surface oxidation kinetics, a record-high photocurrent density of 6.42 mA cm⁻² is obtained at 1.23 vs. RHE (100 mW cm⁻²).

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Article information

DOI: https://doi.org/10.1039/D2CC07093F
Article type: Communication
Submitted: 31 Dec 2022
Accepted: 25 Jan 2023
First published: 30 Jan 2023

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Chem. Commun., 2023,59, 3435-3438

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Photochemical and electrochemical co-regulation of the BiVO₄ photoanode for water splitting

H. Xu, D. Xu, S. Deng, D. Li, T. Jiang, L. Li, W. Fan, Y. Lei and W. Shi, Chem. Commun., 2023, 59, 3435 DOI: 10.1039/D2CC07093F

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Chemical Communications