Atomic‐Level Observation of Potential‐Dependent Variations at the Surface of an Oxide Catalyst during Oxygen Evolution Reaction (Adv. Mater. 38/2024)

Oxygen Evolution Reaction Catalysis The work by Sung‐Yoon Chung and co‐workers conveys a crucial message: angstrom‐level atomic displacement on the surface, followed by catalytic degradation, appears to commonly occur in many catalysts, even though no substantial elemental dissolution takes place. Moreover, even catalysts known to be stable can undergo significant oxidation of lattice oxygen under high overpotentials. More details can be found in article number 2403392.