A simple self-corrosion method constructs a Ni 3 S 2 @FeOOH heterostructure enabling industrialized seawater oxidation

A Ni 3 S 2 @FeOOH heterojunction electrocatalyst selectively enriches OH − while repelling Cl − during the OER and in situ SO 4 2− leaching drives efficient self-reconstruction, promoting the formation of high-valence metal active sites.