聚苯胺纳米材料电容性能研究  

Research on capacitance performance of polyaniline nanomaterial

作　　者：丛文博[1] 黄震雷 张宝宏[1] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001

出　　处：《电子元件与材料》2007年第1期65-67,共3页Electronic Components And Materials

基　　金：哈尔滨工程大学基础研究基金资助项目(HEUF04066)

摘　　要：以(NH4)2S2O8为氧化剂,在1 mol/L盐酸环境下化学氧化合成超级电容器用电极材料纳米聚苯胺(PANI)。在1 mol/L H2SO4溶液中考察了材料的电容性能。结果表明:在循环伏安图上出现三对氧化还原峰,分别对应聚苯胺在三种不同氧化状态间的转化以及PANI的降解。放电电流密度为(1.0,4.5,10)×10–3A/cm2时,比容量分别为654,591,525 F/g。经恒定电流10 mA充放电循环1 000次,衰减仅为初始容量的10.7%。Polyaniline nanoparticles was synthesized in 1 mol/L HCl solution using （NH4）2S2O8 as oxidant under protection of N2. Investigated was the capacitance performance of polyaniline in 1 mol/L H2SO4 aqueous solution. The results show that three redox peak are observed from voltammogram in the potential range of 0~0.7 V（vs Ag/AgC1）, indicating the transitions of polyaniline bentween different oxidation states and its degradation. Specific capacitance of 654 F/g is obtained at current density of 1.0×10^-3 A/cm^2, comparing with that of 591 Fig and 525 Fig at 4.5×10^-3 A/cm^2, 10×10-3A/cm^2, respectively. After 1 000 cycles of charge/discharge at constant current density of 10×10^-3A/cm^2, specific capacitance is decreased only 10.7 %.

关 键 词：电子技术 超级电容器 聚苯胺 比容量 纳米微粒 

分 类 号：TM911.515[电气工程—电力电子与电力传动]