Defective graphene anchored iron-cobalt nanoparticles for efficient electrocatalytic oxygen reductionElectronic supplementary information (ESI) available. See DOI: 10.1039/c7cc07501d

A non-precious FeCo nanoparticle decorated defective graphene (DG) sample, DG@FeCo, was successfully synthesized via a facile impregnation method. It is shown that DG@FeCo exhibits similar oxygen reduction reaction activity to that of commercial Pt/C, but has much better durability and is free from methanol poisoning in alkaline electrolytes. Defective graphene is a promising material to anchor, disperse and interact with metal nanoparticles for synthesizing highly efficient ORR catalysts.