▎ 摘　　要

Composite materials based on the combination of graphene oxide and PANI are expected not only to improve the PANI conductivity, but also relieve graphene oxide aggregation via a synergistic effect. We report an easy synthesis of a polyaniline/graphene oxide (PGO) composite with a relatively high specific capacitance by chemical oxidation polymerization. As the employ of phytic acid and increasing aniline monomer concentration, more and more PANI nanoparticles deposited into the interval between GO layers. PGO(3) composite exhibits the largest specific capacitance (349 F.g(-1)) and PGO(4) composite follows (314 F.g(-1))whereas PGO has a minimal specific capacitance (206 F.g(-1)). The enhanced originates from the high capacitance of more PANI nanoparticles and better configuration as well as higher surface area of PGO(3) and PGO(4) composites for fast ion transport. The as-prepared PGO(3) sheets composite with improved electrochemical performance is a promising electrode material for supercapacitor.