P-Toluene Sulfonic Acid Doped Polyaniline/Carbon Nanotube Nanocomposites by a Sequential Doping-Dedoping-Redoping Process

Abstract:

HCl doped Polyaniline (PANI)/multi–walled carbon nanotube (MWCNT) nanocomposites were first prepared by in–situ chemical polymerization of aniline monomers in the presence of MWCNTs with less structural defects, and then p–toluene sulfonic acid (TSA) doped PANI/MWCNT nanocomposites were obtained by a sequential doping–dedoping–redoping process. The morphology, microstructure, and thermal and electrochemical properties of the resulting nanocomposites were investigated by scanning electron microscopy, fournier infrared spectroscopy, thermal gravimetric analysis, and cyclic voltammetry, respectively. The effects of TSA as the secondary dopant on the microstructure and electrochemical properties were discussed. The results indicated that a significant improvement in the thermal stability could be achieved, while good electrochemical behavior could be remained.

• Periodical: Applied Mechanics and Materials (Volume 665)
• Pages: 315-318
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.665.315
• Online since: October 2014
• Authors: Yi Zhou*, Wen Yi Li, Xiao Ping Wang, Hui Li, Qing Wu Tian, Ming Tian, Xia Wang
• Keywords: Doping-Dedoping-Redoping Process, Multi-Walled Carbon Nanotube (MWCNT), Polyaniline, P-Toluene Sulfonic Acid

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