聚苯胺纳米球电极材料的制备及其电容性质

摘要

采用化学氧化聚合法,以聚乙烯醇(PVA)为稳定剂,制得直径约为200 nm的聚苯胺(PANI)纳米球电极材料.采用XRD、FT-IR、FESEM和TEM对电极材料的组成、结构和形貌进行了表征.在三电极体系中测试PANI纳米球电极的电容性质,电流密度为0.5 F/g时PANI纳米球电极的质量比电容为494 F/g,当电流密度从0.5 F/g增加到20 F/g时电容保持率为71%.%By using polyvinyl alcohol (PVA)asstabilizer,polyaniline (PANI)nano-spheres with diameters of about 200 nm were prepared via chemical oxidative polymerization method.The composition,structure,and morphology of as-prepared electrode material were characterized by XRD,FT-IR,FESEM and TEM tech-niques.The capacitive properties of PANI nano-sphere electrode material for supercapacitor was investigated in three electrode system.The specific capacitance of the PANI nano-sphere electrode material was 494 F/g at the current density of 0.5 A/g.And the capacitance retention was 71% when the current density increases from 0.5 to 20 A/g.