用EQCM法研究聚苯胺超级电容性能  

Study of supercapacitor performance of polyaniline by electrochemical quartz crystal microbalance

作　　者：邢季 王雅敏[2] 朱绪飞[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094 [2]南京信息工程大学,江苏南京210044

出　　处：《电子元件与材料》2016年第9期70-73,共4页Electronic Components And Materials

基　　金：国家自然科学基金资助(No.61171043;No.51377085)

摘　　要：电化学石英晶体微天平（EQCM）是检测电极质量微小变化和表面离子迁移的有效手段。首次采用EQCM与循环伏安（CV）相结合的方法，研究了聚苯胺（PANI）电化学合成过程中，在质子酸中发生氧化还原反应的微小质量变化，以及PANI的超级电容性能。结果表明：PANI的聚合速率与PANI质量的平方根成正比，说明PANI电化学合成是一个自催化过程；PANI电极的比电容和功率密度分别高达593F／g和19．6×10-3W／kg。Micro mass change during electrochemical synthesis and redox process of polyaniline （PANI） and its supercapacitor performance were investigated by cyclic voltammetry （CV） with electrochemical quartz crystal microbalance （EQCM） which was a direct tool to measure micro mass change and ionic fluxes in electrode surfaces. Results show that electrochemical synthesis of PANI is an autocatalysis process due to the liner relationship between rate of polymerization and square root of the mass; the specific capacitance and power density of PANI electrode reach up to 593 F/g and 19.6×103 W/kg, respectively.

关 键 词：聚苯胺 电化学石英晶体微天平 对阴离子 动力学 电化学 超级电容 

分 类 号：TM53[电气工程—电器]