Light-triggered oxygen redox activity at the edge of cobalt oxyhydroxide for superior water oxidation

Nature Communications, Published online: 11 June 2026; doi:10.1038/s41467-026-74386-1 Light-driven oxygen redox offers a new strategy to boost oxygen evolution activity by enabling direct O–O bond formation. Here, the authors report that sulfur-treated cobalt oxyhydroxide generates non-bonding oxygen states under light, enhancing oxygen evolution performance.