Heterostructure engineering of integrated anti-perovskite electrode for high current density overall water splitting

Abstract

An integrated electrode is fabricated by electrodepositing MoO3 onto anti-perovskite grown on nickel foam. The heterostructure electrocatalyst enables charge redistribution and bifunctional active sites, and delivers ultralow oxygen evolution reaction and hydrogen evolution reaction overpotentials of 299 and 215 mV at 500 mA cm-2, respectively, achieving efficient anion exchange membrane electrolyzer performance.