【摘要】 本文以活性中间相炭微球为基底,过硫酸铵（APS）为氧化剂,通过原位化学聚合法聚合苯胺,得到聚苯胺/活性中间相炭微球复合材料（PANI/A-MCMB）,采用扫描电子显微镜（SEM）、X-射线衍射仪（XRD）对其形貌和结构进行表征。以PANI/A-MCMB复合物为电极活性物质,1.0 mol/L H₂SO₄水溶液为电解液,组装对称型超级电容器,用循环伏安法（CV）、电化学交流阻抗（EIS）、恒流充放电（GCD）等测试手段测试超级电容器的电化学性能。实验结果表明,电流密度恒为0.1A/g时,PANI/A-MCMB复合材料单电极比容量为301.6F/g,1 000次循环后比容量为276.3F/g,比电容保持率为91.6%,较PANI材料（比容量为228F/g,1 000次循环后比电容保持率为39.5%）具有更好的比容量和循环稳定性。更多还原

【Abstract】 In this paper,polyaniline/activated mesocarbon microbeads（PANI/A-MCMB）composite material was obtained through in-situ chemical polymerization of aniline by using activated mesocarbon microbeads（MCMB）as substrate and ammonium peroxydisulfate（APS）as oxidizing agent.The morphology and structure of prepared PANI/A-MCMB composite material was characterized by scanning electron microscope（SEM）and X-ray diffraction（XRD）.A symmetric redox supercapacitor was assembled with PANI/A-MCMB composite as active electrode material and 1.0 mol/L H₂SO₄ aqueous solution as electrolyte, and the electrochemical properties of this PANI/A-MCMB supercapacitor were investigated by cyclic voltammetry（CV）,electrochemical impedance spectroscopy（EIS）and galvanostatic charge/discharge tests.The experimental results show that the single specificcapacitance of PANI/A-MCMB composite materials is 301.6 F/g at current density for 0.1 A/g,the specific capacitance is 276.3 F/g and the capacity retention is 91.6% after 1 000 charge/discharge cycles.PANI/A-MCMB composite materials have higher specific capacity and better cyclic stability than PANI electrode materials whose single specific capacitance of PANI is only 228 F/g and the capacity retention is 39.5% after 1 000 charge/discharge cycles.更多还原