以苯胺为单体,采用界面聚合法合成了不同浓度的Ag~+掺杂的聚苯胺(PANI/Ag~+),使用傅里叶变换红外光谱(FT-IR)、X射线衍射(XRD)和场发射扫描电镜(SEM)等手段对其结构和形貌进行了分析和表征.在0.5 mol·L~(-1)Na_2SO_4电解液中,通过循环伏安(CV)、恒流充放电(CP)以及电化学阻抗(EIS)等技术研究了其电化学性能.结果表明,当电流密度为5 m A·cm~(-2)时,PANI/0.12 mol·L~(-1)Ag~+的比电容达529 F·g~(-1),循环1000次后比电容保持51%,相对于无Ag~+掺杂的PANI,表现出更优良的电化学电容特性. Polyaniline (PANI / Ag ~ +) doped with different concentrations of Ag ~ + was synthesized by an interfacial polymerization method using aniline as the monomer. Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction And field emission scanning electron microscopy (SEM) were used to analyze and characterize their structure and morphology. In 0.5 mol·L -1 Na_2SO_4 electrolyte, cyclic voltammetry (CV), constant current charge and discharge CP) and electrochemical impedance spectroscopy (EIS) were used to investigate the electrochemical properties of PANI / 0.12 mol·L ~ (-1) Ag ~ (-1) at current density of 5 m A · cm ~ + Has a specific capacitance of 529 F · g -1. After 1000 cycles, the specific capacitance is maintained at 51%. Compared with Ag + -doped PANI, it shows better electrochemical capacitance.