Fe-S dually modulated adsorbate evolution and lattice oxygen compatible mechanism for water oxidation.

ABSTRACT: Simultaneously activating metal and lattice oxygen sites to construct a compatible multi-mechanism catalysis is expected for the oxygen evolution reaction (OER) by providing highly available active sites and mediate catalytic activity/stability, but significant challenges remain. Herein, Fe and S dually modulated NiFe oxyhydroxide (R-NiFeOOH@SO₄) is conceived by complete reconstruction of NiMoO₄·xH₂O@Fe,S during OER, and achieves compatible adsorbate evolution mechanism and lattice oxygen oxidation mechanism with simultaneously optimized metal/oxygen sites, as substantiated by in situ spectroscopy/mass spectrometry and chemical probe. Further theoretical analyses reveal that Fe promotes the OER kinetics under adsorbate evolution mechanism, while S excites t

SUBMITTER: Luo X 

PROVIDER: S-EPMC11436974 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature