MOF-derived RuO2/Co3O4heterojunctions as highly efficient bifunctional electrocatalysts for HER and OER in alkaline solutions

A RuO₂/Co₃O₄heterojunction catalyst with a perfect OER and HER overpotential in 1 M KOH solution was synthesized. It contains only a small amount of precious metal oxides but demonstrates a better performance than most reported Co₃O₄-based electrocatalysts.