Multiporous MnCo₂O₄ Microspheres as an Efficient Bifunctional Catalyst for Nonaqueous Li–O₂ Batteries

Abstract

Multiporous MnCo 2 O 4 microspheres are fabricated via the solvothermal method followed by pyrolysis of carbonate precursor to demonstrate excellent bifunctional catalytic activity toward both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Because of this multiporous structure, the resulting MnCo 2 O 4 microspheres show an efficient electrocatalytic performance in LiTFSI/TEGDME electrolyte-based Li–O 2 batteries. MnCo 2 O 4 microspheres as the air cathode deliver better performance during the discharging and charging processes and good cycle stability compared with that of the Super P. This preliminary result manifests that multiporous MnCo 2 O 4 microspheres are promising cathode catalysts for nonaqueous Li–O 2 batteries.