采用掺杂剂分散纳米聚苯胺颗粒及其超级电容性能  

Preparation of dopant-dispersed nano-grains of polyaniline and their super-capacitive performance

作　　者：冉奋[1] 刘吉[1] 刘钊[1] 申强[1] 王翎任[1] 孔令斌[1] 

机构地区：[1]兰州理工大学甘肃省有色金属新材料重点实验室,甘肃兰州730050

出　　处：《兰州理工大学学报》2011年第1期24-27,共4页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(50602020);973前期研究专项基金(2007CB216408);国家大学生创新性实验计划资助(091073110)的资助

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 both 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.

关 键 词：化学氧化法 超级电容器 聚苯胺 

分 类 号：TB324[一般工业技术—材料科学与工程] TQ316.3[化学工程—高聚物工业]