采用电化学方法制备出聚苯胺/石墨烯复合材料，并通过扫描电子显微镜（SEM）、傅里叶红外光谱仪（FT-IR）、紫外-可见分光光度计（UV-Vis）对氧化石墨烯、聚苯胺和聚苯胺/石墨烯复合材料的结构进行表征。结果表明，聚苯胺纳米颗粒均匀分布在石墨烯片层间。聚苯胺/石墨烯复合材料的比电容最大为238 F/g。循环1 000次以后，聚苯胺的电容衰减24.5%，而复合材料的电容衰减15%。与聚苯胺相比，聚苯胺/石墨烯复合材料的电容量高、循环稳定性好，电导率从5 S/cm提高到10 S/cm。

Polyaniline/graphene composites are prepared by electrochemical method.The structures of graphene oxide,polyaniline and the prepared polyaniline/graphene composites are characterized by scanning electron microscopy (SEM),Fourier transform infrared spectroscopy (FT-IR) and UV-Vis spectrophotometer.The results show that polyaniline particles distribute evenly between the graphene sheets.The maximum capacitance of the composites can reach 238 F·g^-1.The capacitance of the polyaniline decreases by 24.5% after cycling for 1 000 times,and that of the polyaniline/graphene composite decreases by 15% only.The capacitance and cycle stability of the polyaniline/graphene composite is more excellent than that of polyaniline.Its conductivity is 10 S·cm^-1 compared with the 5 S·cm^-1 of polyaniline.