The highly efficient Cu-based ORR catalysts (Cu-N-C) were obtained by the pyrolysis of mesoporous KIT-6 silica-supported phthalocyanines at superhigh temperature (1000 degrees C). The prepared Cu-N-C catalyst was demonstrated as one of the best Cu-based electrocatalysts for ORR, with 0.82 V half-wave potential in 0.1 M KOH and 0.72 V half-wave potential in 0.1 M HClO4. It showed the competitive ORR activity to high-performance Fe- or Co-based carbon catalysts. Moreover, the ORR catalytic performance of Cu-N-C could be further enhanced by co-doping few Fe species (Fe-Cu-N-C) into the carbon framework. It revealed about 30 mV higher half-wave potential and better stability than Cu-N-C catalyst in both alkaline and acidic media. Cu-N-C and Fe-Cu-N-C electrocatalysts could be produced at a scale of over 15 g by facilely enlarging the amount of phthalocyanine precursors. The high-efficiency ORR performance and scalable synthesis of Cu-N-C and Fe-Cu-N-C catalysts enabled them to be the potential substitutes to Pt-based electrocatalyst for ORR. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.