▎ 摘　　要

A nanocomposite consisting of nitrogen-doped few-layer graphene structures, the surface of which is decorated with nanocrystallites of Mn1.5Co1.5O4 spinel oxide, was prepared by a single-stage method of plasma-assisted electrochemical exfoliation of graphite in a solution of 1 m NaNO3 + 0.005 m MnSO4 + 0.005 m CoSO4 + 0.01 m melamine. The high catalytic activity of the synthesized catalyst in the oxygen reduction reaction is due to pyridine nitrogen atoms and Mn1.5Co1.5O4 spinel nanoparticles.