Abstract
Bifunctional Rh0–Rh3+ sites anchored on Mo-doped BiVO4 show a high visible-light photocatalytic oxygen production activity, as reported by Peng Fei Liu, Zheng Jiang, Hua Gui Yang, and co-workers in their Research Article on page 22761. Operando XAFS results and DFT calculations illustrate the bifunctional OER mechanism on the Rh0–Rh3+ sites: the oxygen intermediate attacks the Rh3+ sites, facilitating a hydrogen atom transfer to the adjacent Rh0 sites, which synergistically optimizes the OER energetics.
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