采用掺杂剂分散纳米聚苯胺颗粒及其超级电容性能

摘要

用盐酸、对甲苯磺酸及其混合物掺杂,采用化学氧化法制备纳米结构聚苯胺,并研究其超级电容性能.结果表明:盐酸和对甲苯磺酸混掺制备的聚苯胺为较小的纳米颗粒(50 nm),分散于较大的短棒状(100 nm)结构中,形成相对比较疏松的聚集态结构.以这种结构的聚苯胺为活性物质,具有更好的超级电容性能,当盐酸与对甲苯磺酸的比值为5:5时,得到的聚苯胺活性物质的比电容达到最大值,为346.9 F/g.%Nano-structure of polyaniline was prepared by using chemical oxidation with dispersion of different dopant of HCl acid, P-toluenesulfonic acid (PTSA) and their mixture. The super-capacitive performance of the products was studied. The experiment results indicated that the polynailine doped with bot.h of HCl and PTSA was of smaller nano-particle, which was dispersed among bigger cosh-like particles (100 nm), and formed looser agglomerate structure. This product exhibited a better supercapacitive performance, its maximum capacitance being 369 F/g when the ratio of HCl to PTSA was 5: 5.