Manganese oxide coated with a uniform layer of N-doped carbon (Mn3O4@CN x ) is readily synthesized using a simple aqueous solution based chelating agent dicyandiamide mediated growth of MnCO3 followed by calcination at 1000°C. The Mn3O4@CN x can provide sufficient effective three-phase interface area due to the unique structures, which plays the important role in the complex three-phase interface electrocatalytic reaction in oxygen reduction reaction. The electron transfer, from the CN x layer to the Mn ions, is supposed to occur and the high positive charge be generated on the Mn3O4@CN x surface. As a result, these non-precious hybrid materials display an excellent activity for oxygen reduction reaction in terms of electrocatalytic activity, long-term stability, and excellent resistance to crossover effect.