Cultivating crystal lattice distortion in IrO2via coupling with MnO2 to boost the oxygen evolution reaction with high intrinsic activity

Abstract

Here, we report an effective strategy to lower Ir consumption and boost the OER performance in acid by loading IrO₂ onto MnO₂, in which the IrO₂ crystals are well dispersed and undergo a so-called Z-extension Jahn–Teller distortion in the octahedral structure. Compared with IrO₂, the mass activity and intrinsic activity for IrO₂/MnO₂ were largely increased.