Synthesis of sulfonated graphene/polyaniline composites with improved electroactivity

被引：100

作者：

Coskun, Elcin ^{[1
,2
]}

Zaragoza-Contreras, Erasto A. ^{[2
]}

Salavagione, Horacio J. ^{[1
]}

机构：

[1] CSIC, Inst Ciencia & Tecnol Polimeros, Madrid 28006, Spain

[2] Ctr Invest Mat Avanzados CIMAV, Chihuahua 31109, Mexico

来源：

CARBON | 2012年 / 50卷 / 06期

关键词：

CONDUCTING POLYANILINE; CARBON NANOTUBES; GRAPHENE OXIDE; REDUCTION; OXIDATION; FUNCTIONALIZATION; GRAPHITE; FILMS;

D O I：

10.1016/j.carbon.2012.01.041

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：

The sulfonation of graphene by coupling with the diazonium salts of sulfanilic (SA) acid and amino-4-hydroxy-2-naphthalenesulfonic (NSA) acid is studied. Coupling with the diazonium salt of NSA gives the highest degree of sulfonation. Composites of polyaniline (PANT) and sulfonated graphene (SG) are prepared by the polymerization of aniline in the presence of the SG. The materials have been characterized by Raman, Fourier transformed infrared spectroscopy, thermogravimetric analysis and cyclic voltammetry. These materials are electrochemically active at pHs close to physiological pH due to the doping of PANI with the sulfonic groups in SG trapped in the polymer. Furthermore, good conductivity values are obtained. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2235 / 2243

页数：9

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