Microwave-assisted synthesis and electrochemical capacitance of polyaniline/multi-wall carbon nanotubes composite

被引：145
|
作者：
Mi, Hongyu [2 ,3 ]
Zhang, Xiaogang [1 ]
An, Shuying [2 ]
Ye, Xiangguo [2 ]
Yang, Sudong [2 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Nanjing 210016, Peoples R China
[2] Xinjiang Univ, Inst Appl Chem, Urumqi 830046, Peoples R China
[3] Xi An Jiao Tong Univ, Coll Sci, Xian 710049, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 12期
基金：
中国国家自然科学基金;
关键词：
polyaniline; multi-wall carbon nanotubes; microwave-assisted; supercapacitor;
D O I：
10.1016/j.elecom.2007.10.013
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Polyaniline/multi-wall carbon nanotubes composite (PANI/MWNTs) was rapidly synthesized by microwave-assisted polymerization. Transmission electron microscope (TEM) image revealed that this composite was a core-shell structure with PANI layers (50-70 nm). Electrochemical behavior of the composite was evaluated by cyclic voltammetry (CV) and galvanostatic charge-discharge tests with a two-electrode system. An enhanced specific capacitance of 322 F/g with a specific energy density of 22 W h/kg was about 12 times that of MWNTs. This composite also exhibited a good rate capability, retaining up to 87% of initial capacity at a current density of 5 mA/cm(2). (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：2859 / 2862
页数：4
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