Synthesis of polyaniline/tin oxide hybrid and its improved electrochemical capacitance performance

被引：29
|
作者：
Li, Xingwei [1 ]
Chai, Yuzheng [1 ]
Zhang, Han [1 ]
Wang, Gengchao [1 ]
Feng, Xin [1 ]
机构：
[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Shanghai Key Lab Adv Polymer Mat,Minist Educ, Shanghai 200237, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2012年 / 85卷
基金：
中国国家自然科学基金;
关键词：
Polyaniline; Tin oxide; Hybrid; Electrochemical capacitance; AQUEOUS REDOX SUPERCAPACITORS; ELECTRODE MATERIAL; COMPOSITE; NANOCOMPOSITE; CARBON; NANOFIBRES; POLYMER;
D O I：
10.1016/j.electacta.2012.07.124
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A polyaniline/tin oxide hybrid, which has a conductivity of 3-6S cm(-1) at 25 degrees C, has been prepared by the oxidative polymerization of aniline with the simultaneous hydrolysis of SnCl4 and an appropriate post-processing temperature. As an electrode material, 5-20 nm pore-dominated polyaniline/tin oxide hybrid gave an improved electrochemical capacitance performance due to providing an effective electrochemical accessibility of electrolyte solution. The charge/discharge tests showed that the polyaniline/tin oxide hybrid had a higher specific capacitance than that of polyaniline with a growth of current density from 1.0 Ag-1 to 30 Ag-1, and the specific capacitance of polyaniline/tin oxide hybrid still reached 325 Fg(-1) at a constant current density of 30 Ag-1, but that of polyaniline was about 180 Fg(-1). (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：9 / 15
页数：7
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