期刊论文

Effect of Perchloric Acid Doped Polyaniline on Electrochemical Properties of Capacitor

中文

材料导报

Materials Review

1007-1032

2013

26

24

43-45

本校为其他机构

以苯胺为主要原料,过硫酸铵为氧化剂,利用高氯酸和四氯化碳的两相界面,通过界面聚合法合成高氯酸掺杂聚苯胺.以所合成的聚苯胺为活性物质制备电极,以活性炭材料为对电极,1 mol/L H2 SO4溶液为电解液,分别组装对称及非对称电容器PAN-PAN、AC-PAN及AC-AC,并采用恒流充放电、循环伏安和交流阻抗技术研究了它们的电化学性能.结果显示,聚苯胺材料作正极材料时,140 mA/g充放电电流密度下材料的比电容达270 F/g,循环性能良好;聚苯胺材料作负极材料时,电容器在高电压范围的可逆性变差,容量变小.研究表明,高氯酸掺杂聚苯胺是一种很有发展前景的超级电容器正极材料.

The polyaniline doped by perchlorie acid （PAN-HC1O4） were prepared by interracial polymerization which utilized the interface between HC104 and CCh. Symmetric and asymmetric supercapacitors （PAN-PAN, AC- PAN and AC-AC） were assembled using PAN-HC104 as active electrode material and active carbon as counter elec- trode, 1 mol/L Hz SO4 aqueous solution as electrolyte. The electrochemical performances of the supercapacitors were tested with galvanostatic charge-discharge, cyclic voltammetry and electrochemical impedance spectroscopy. The re- s...