Covalent functionalization of single-walled carbon nanotubes by aniline electrochemical polymerization

被引：102

作者：

Baibarac, M

Baltog, I

Godon, C

Lefrant, S

Chauvet, O

机构：

[1] Univ Nantes, Inst Mat Jean Rouxel, Lab Phys Cristalline, F-44322 Nantes 03, France

[2] Natl Inst Mat Phys, Lab Opt & Spect, R-76900 Bucharest, Romania

来源：

CARBON | 2004年 / 42卷 / 15期

关键词：

carbon nanotubes; electrochemical treatment; Raman spectroscopy; infrared spectroscopy; chemical structure;

D O I：

10.1016/j.carbon.2004.07.030

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：

Electrochemical polymerization of aniline in an HCl solution on a single-walled carbon nanotubes (SWNTs) film has been studied by Raman and FTIR spectroscopy. It is shown that this method leads to a covalent functionalization of SWNTs with polyaniline (PANI). A careful study in Raman scattering shows that the increase in the intensity of the band at 178cm(-1) associated with radial breathing modes of SWNTs bundles suggests an additional nanotubes roping with PANI as a binding agent. A post chemical treatment with the NH4OH solution of polymer-functionalized SWNTs involves an internal redox reaction between PANI and carbon nanotubes. As a result, the polymer chain undergoes a transition from the semi-oxidized state into a reduced one. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：3143 / 3152

页数：10

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