The effect of electro-degradation processing on microstructure of polyaniline/single-wall carbon nanotube composite films

被引：20

作者：

Xie, Xiaofeng ^{[1
]}

Gao, Lian ^{[1
]}

Sun, Jing ^{[1
]}

Liu, Yanyqiao ^{[1
]}

Kajiura, Hisashi ^{[2
]}

Li, Yongming ^{[2
]}

Noda, Kazuhiro ^{[2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Sony Corp, Mat Labs, Kanagawa 2430021, Japan

来源：

CARBON | 2008年 / 46卷 / 08期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.carbon.2008.04.014

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mesostructured polyaniline/single-wall carbon nanotube (PAni/SWCNT) composite film has been prepared through electrochemical polymerization/degradation processing. The microstructures of the films are observed before and after electro-degradation. Initial twisty SWCNT bundles are broken down and linked by the polymerization of PAni. Both crystalline and disordered PAni regions coexist in the PAni/SWCNT composite nanowires. The disordered regions are gradually dissolved while the crystalline regions are basically preserved after electro-degradation. The formation mechanism of the composite with special construction has been proposed. In addition, cyclic voltammetry measurements demonstrate that the electroactive performance of PAni/SWCNT composite is enhanced after electro-degradation. It is found that the specific capacitance of electro-degraded composite reaches up to 848.7 F/g, more than twice over the untreated film, which is ascribed to its profitable charge accessible interface and increased available crystalline PAni regions. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1145 / 1151

页数：7

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