A non-precious metal catalyst CoMe/C for the oxygen reduction reaction is prepared by heat-treating a mechanical mixture of carbon black,melamine and cobalt chloride at 600 under nitrogen atmosphere for2 h.The catalytic activity of CoMe/C is characterized by the electrochemical linear sweep voltammetry technique.The onset reduction potential of the catalyst is 0.55 V(vs.SCE)at a scanning rate of 5 mV/s in0.5 mol/L H2SO4solution.The formation of the ORR activity sites of CoMe/C is facilitated by metallic β-cobalt. A non-precious metal catalyst CoMe / C for the oxygen reduction reaction is prepared by heat-treating a mechanical mixture of carbon black, melamine and cobalt chloride at 600 under nitrogen atmosphere for 2 h. The catalytic activity of CoMe / C is characterized by the electrochemical linear sweep voltammetry technique.The onset reduction potential of the catalyst is 0.55 V (vs.SCE) at a scanning rate of 5 mV / s in 0.5 mol / L H2SO4 solution. The formation of the ORR activity sites of CoMe / C is facilitated by metallic β-cobalt.