improving performance for efficient photoelectrochemical water splitting
As one of the most promising photoanode candidates for photoelectronchemical water splitting, the photocurrent density and IPCE of BiVO4 have been improved to 5 times higher by constructing OEC/BiVO4 and highly matched BiVO4/WO3 nanobowl “multiple junctions.” Credit: Chinese Journal of Catalysis (2022). DOI: 10.1016/S1872-2067(21)63927-X

Photoelectrochemical (PEC) water splitting is a promising green technique for renewable hydrogen production. To construct a practical PEC system, it is of great significance to develop efficient photoanodes. BiVO4 has been identified as the most promising photoanode material because of its narrow band gap and favorable band positions for hydrogen and oxygen evolution. Nevertheless, BiVO4 has limitations of low carrier mobility (4×10−2 cm2·V−1·s−1) and short hole diffusion length (

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