A tri-functional self-supported electrocatalyst featuring mostly NiTeO3 perovskite for H2 production via methanol–water co-electrolysis

A self-supported NiTeO₃ perovskite is made by deploying an extended hydrothermal tellurization strategy with a restricted Te content, which was found to be exceptionally active towards the oxidation of water and methanol and the reduction of water in 1.0 M KOH where it delivered -10 mA cm^-2 at just -1.54 V for a full cell featuring MOR‖HER.