Tailoring the cationic and anionic sites of LaFeO₃-based perovskite generates multiple vacancies for efficient water oxidation

A simple strategy involving Cr and Mo tailoring and post-reduction process to generate multivacancies in LaFeO₃ is reported, which substantially accelerates the OER electroactivity of LaFeO₃ with overpotential of 263 mV at 10 mA cm⁻².