Table of Contents
Indian Journal of Materials Science
Volume 2013, Article ID 718304, 7 pages
Research Article

Electrical Conductivity Studies of Polyaniline Nanotubes Doped with Different Sulfonic Acids

Laboratório de Filmes Finos e Superfícies, Departamento de Fisica, Universidade Federal de Santa Catarina, 88040-900 Florianopolis, Brazil

Received 15 October 2013; Accepted 10 November 2013

Academic Editors: S. K. Dhara, S. K. Kulshreshtha, and V. Privman

Copyright © 2013 Mohd. Khalid et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Self-assembled polyaniline (PANI) nanotubes were prepared in the presence of three different sulfonic acids as dopant, namely, p-toluenesulfonic acid, camphorsulfonic acid, and tetrakis(4-sulfonatophenyl)porphyrin, by oxidative polymerization using ammonium peroxydisulfate as the oxidant. The morphology of the PANI nanotubes was determined by SEM and TEM and the electrical conductivity was measured as a function of temperature. The PANI nanotubes were also characterized by FTIR, XRD, UV-Vis, and cyclic voltammetry. We have found that the dopants had a noteworthy effect on the electrical conductivity whithout significant changes in the morphology of the PANI nanotubes.