Core-double shells heterostructure γ-Fe2O3@FeS2@C nanocubics with energy level matching double interfaces to boost the oxygen evolution reaction

Transition-metal-based catalysts are considered to be promising oxygen evolution reaction (OER) catalysts with lost capital cost and high durability. Herein, a core-double shell nanocubic γ-Fe2O3@FeS2@C with energy level matching was fabricated to regulate the electrochemical electronic structure and enable efficient charge transfer at the double-interface, which could effectively reduce the OER reaction barrier and activate fast OER kinetics....