A triple-defense electrocatalyst for robust seawater oxidation.

ABSTRACT: While coastal renewable energy-powered seawater electrolysis is highly promising for green H₂ production, the anodic chemical corrosion by aggressive chlorine chemistry and violent bubble release-induced physical damage to anodes are two long-standing issues that lead to inferior stability. Here we pursue integrating triple protection to a monolithic catalyst to concurrently alleviate chlorine chemistry and weaken external forces from bubble escaping/collapsing. The 1^st and 2^nd defenses are a Co-phosphate (Co-Pi) outer layer closely connected to CoP and well-dispersed nanosized γ-MnO₂ in/on Co-Pi, which collectively and preferentially filter out chloride ions approaching the catalytic sites based on their semipermeable natures. The 3^rd

SUBMITTER: Li Z 

PROVIDER: S-EPMC12644857 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature