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Boosting Photocatalytic Water Oxidation Over Bifunctional Rh^0^‐Rh^3+^ Sites by Yuanwei Liu; Li Jie Wang; Hao Zhang; Hai Yang Yuan; Qinghua Zhang; Lin Gu; Hai Feng Wang; P. Hu; Peng Fei Liu; Zheng Jiang; Hua Gui Yang is a Chemistry article available to read on EtoBox.

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## Abstract Photocatalytic water splitting provides an economically feasible way for converting solar energy into hydrogen. Great efforts have been devoted to developing efficient photocatalysts; however, the surface catalytic reactions, especially for the sluggish oxygen evolution reaction (OER), still remain a challenge, which limits the overall photocatalytic energy efficiency. Herein, we design a Rh~n~ cluster cocatalyst, with Rh^0^‐Rh^3+^ sites anchoring the Mo‐doped BiVO~4~ model photocatalytic system. The resultant photocatalyst enables a high visible‐light photocatalytic oxygen production activity of 7.11 mmol g^−1^ h^−1^ and an apparent quantum efficiency of 29.37 % at 420 nm. The turnover frequency (TOF) achieves 416.73 h^−1^, which is 378 times higher than that of the photocatalyst only with Rh^3+^ species. Operando X‐ray absorption characterization shows the OER process on the Rh^0^‐Rh^3+^ sites. The DFT calculations further illustrate a bifunctional OER mechanism over the Rh^0^‐Rh^3+^ sites, in which the oxygen intermediate attacks the Rh^3+^ sites with assistance of a hydrogen atom transfer to the Rh^0^ sites, thus breaking the scaling relationship of various oxygen i

Who reads Boosting Photocatalytic Water Oxidation Over Bifunctional Rh^0^‐Rh^3+^ Sites?

Author

Yuanwei Liu; Li Jie Wang; Hao Zhang; Hai Yang Yuan; Qinghua Zhang; Lin Gu; Hai Feng Wang; P. Hu; Peng Fei Liu; Zheng Jiang; Hua Gui Yang

Publisher

Wiley

Published

2021

Language

EN

Field

Chemistry (Physical Sciences)