▎ 摘　　要

Nowadays, the hybrids of non-precious metal nanocrystals and heteroatom-doped graphene have been intensively researched as efficient electrocatalysts for the oxygen reduction reaction (ORR) in energy conversion and storage. Herein, a novel hybrid comprising Fe9S10 anchored onto nitrogen and sulfur dualdoped graphene (Fe9S10/N,S-G) was obtained via a two-step method, namely a pi-pi assemble process of p-phenyl-bis(3,4-dicyanophenyl) thioether iron polyphthalocyanine (PTFePPc) and graphene oxide and a pyrolysis procedure. It is worth noting that the Fe9S10/N, S- G obtained at 700 degrees C facilitated a direct four-electron catalytic pathway toward ORR with a low yield of hydrogen peroxide, favored a quick kinetic process with a small Tafel slope of 49 mV dec(-1) for its decent ORR activity, and achieved excellent operational stability in an alkaline medium. Furthermore, the proposed electrocatalyst also favored good OER performance, comparable with the benchmark RuO2. The superior electrocatalytic activity of the composite is mainly attributed to the electronic coupling between nitrogen and sulfur atoms doped in the graphene, the highly active sites of Fe9S10 and Fe-N, and the synergistic effects between Fe9S10 and N,S-G.