Atomic no fe12/11/2023 Homogeneously dispersed multimetal oxygen-evolving catalysts. Atomic-scale perturbation of oxygen octahedra via surface ion exchange in perovskite nickelates boosts water oxidation. A unique oxygen ligand environment facilitates water oxidation in hole-doped IrNiO x core–shell electrocatalysts. An investigation of thin-film Ni–Fe oxide catalysts for the electrochemical evolution of oxygen. Exfoliation of layered double hydroxides for enhanced oxygen evolution catalysis. Trends in activity for the water electrolyser reactions on 3 d M(Ni,Co,Fe,Mn) hydr(oxy)oxide catalysts. Single atom tungsten doped ultrathin α-Ni(OH) 2 for enhanced electrocatalytic water oxidation. Spinels: controlled preparation, oxygen reduction/evolution reaction application, and beyond. A fast soluble carbon-free molecular water oxidation catalyst based on abundant metals. Efficient water oxidation at carbon nanotube–polyoxometalate electrocatalytic interfaces. Ultrathin metal–organic framework nanosheets for electrocatalytic oxygen evolution. Nickel-borate oxygen-evolving catalyst that functions under benign conditions. In situ formation of an oxygen-evolving catalyst in neutral water containing phosphate and Co 2+. Efficient oxygen evolution electrocatalysis in acid by a perovskite with face-sharing IrO 6 octahedral dimers. Photochemical route for accessing amorphous metal oxide materials for water oxidation catalysis. Combining theory and experiment in electrocatalysis: Insights into materials design. A perovskite oxide optimized for oxygen evolution catalysis from molecular orbital principles. A highly active and stable IrO x/SrIrO 3 catalyst for the oxygen evolution reaction. We suggest that the application of inexpensive and durable WC x supports opens up a promising pathway to develop further single-atom catalysts for electrochemical catalytic reactions Density functional theory calculations show that either metallic Fe/Ni atoms or (hydro)oxide FeNi species are responsible for the high OER activity. The reported catalyst shows a low overpotential of 237 mV at 10 mA cm − 2, which can even be lowered to 211 mV when the FeNi content is increased, a high turnover frequency value of 4.96 s −1 ( η = 300 mV) and good stability (1,000 h). Benefiting from the unique structure of tungsten carbides, the atomic FeNi catalytic sites are weakly bonded with the surface W and C atoms. Here, we reveal the stabilization of single-atom catalysts on tungsten carbides without the aid of heteroatom coordination for efficient catalysis of the oxygen evolution reaction (OER). Catalytic metal sites supported on oxides or carbonaceous materials are usually strongly coordinated by oxygen or heteroatoms, which naturally affects their electronic environment and consequently their catalytic activity. Single-atom catalysts have shown promising performance in various catalytic reactions.
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