Polyaniline/single-wall carbon nanotube (PANI/SWCNT) composites for high performance supercapacitors

被引：383

作者：

Gupta, Vinay ^{[1
]}

Miura, Norio

机构：

[1] Kyushu Univ, Art Sci & Technol Ctr Cooperat Res, Fukuoka 8168580, Japan

[2] Japan sci & Technol Agcy, Saitama 3320012, Japan

来源：

ELECTROCHIMICA ACTA | 2006年 / 52卷 / 04期

基金：

日本科学技术振兴机构;

关键词：

single-wall carbon nanotube; polyaniline; deposition; composite; supercapacitor;

D O I：

10.1016/j.electacta.2006.01.074

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

PANI/SWCNT composites were prepared by electrochemical polymerisation of polyaniline onto SWCNTs and their capacitive performance was evaluated by means of cyclic voltammetry and charge-discharge cycling in 1 M H2SO4 electrolyte. The PANI/SWCNT composites single electrode showed Much higher specific capacitance, specific energy and specific power than pure PANI and SWCNTs. The highest specific capacitance, specific power and specific energy values of 485 F/g, 228 W h/kg and 2250 W/kg were observed for 73 wt.% PANI deposited onto SWCNTs. PANI/SWCNT composites also showed long cyclic stability. Based upon the variations in the surface morphologies and specific capacitance of the composite, a mechanism is proposed to explain enhancement in the capacitive characteristics. The PANI/SWCNT composites have demonstrated the potential as excellent electrode materials for application in high performance supercapacitors. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1721 / 1726

页数：6

共 35 条

[1] High-capacitance supercapacitor using a nanocomposite electrode of single-walled carbon nanotube and polypyrrole [J].