Ce-doped CoS2pyrite with weakened O2adsorption suppresses catalyst leaching and stabilizes electrocatalytic H2evolution

Ce-doped CoS₂electrocatalysts effectively stabilized the superior HER activity of pyrites by weakening the interfacial O₂adsorption and reinforces the crystal texture, which improves the electrochemical/chemical stability of CoS₂due to the suppressed oxidation- and corrosion-induced leaching of catalysts.