▎ 摘　　要

A two-step strategy was developed to co-dope graphene with boron and nitrogen as a metal-free catalyst for the oxygen reduction reaction (ORR). This method involved a hydrothermal reaction and a thermal annealing procedure, which guaranteed the efficient insertion of heteroatoms, producing B and N codoped graphene frameworks (BNG) with high ORR reactivity, good stability and tolerance for methanol in alkaline media. The onset potential of BNG was -0.17 V, and the current density reached -5.5 mA cm(-2) at the voltage of -0.8 V during the RDE test (vs. Ag/AgCl, rotating rate = 1600 rpm, scanning rate -10 mV s(-1)), comparable to a high-performance commercial Pt/C catalyst. It is believed that the superior catalytic reactivity arises from the synergistic coupling of the B and N dopants on the graphene domains.