Low-temperature fabrication of crystalline MnCoO spinel film on porous carbon paper for efficient oxygen evolution reaction

Abstract

Cubic Mn_xCo_3−xO₄ (x = 0–0.5) spinel nanocrystal thin films were fabricated on carbon fibre electrodes via one-step topotactic catalysis using Co(OH)₂ nanosheets under aqueous and mild reaction conditions (<120 °C). The MnCo₃O₄ (M_n = 0.01)/CFP catalyst showed the best charge transport efficiency, exhibiting excellent OER activity and stability.