▎ 摘　　要

There are some key problems for oxygen reduction reaction (ORR), such as the slow kinetic process and high cost of Pt/C catalysts. To overcome this problem, the ball-type metallophthalocyanines containing aldehyde substituents M2Pc2(TA)(4) (M=Zn, Co, Fe) were synthesized. The metallophthalocyanine was then supported on the reduced graphene oxide (rGO) surface to obtain a composite catalyst M2Pc2(TA)(4)/rGO using the "pi-pi assembly" technology, and the morphology and microstructure were characterized. The results showed that the metallophthalo. cyanine was loaded on the surface of rGO through the"pi-pi stacking"effect, and the agglomeration phenomenon of the metallophthalocyanines was prevented. Cyclic voltammetry and linear sweep voltammetry were used to evaluate the catalytic activity of composites for ORR. The results suggested that rGO promotes the transfer of electrons in ORR and effectively enhances the electrocatalytic activity, based on the synergistic effect between rGO and ball-type metallophthalocyanine. The catalytic mechanism reveals that the ORR is a four.electron electrocatalytic process. The catalytic activity is related to the d electron of the central metal. The electrocatalytic activity test was displayed in the order of Fe2Pc2(TA)(4)/rGO>Zn2Pc2(TA)(4)/rGO>Co2Pc2(TA)(4)/rGO.