Synthesis and physical characterization of carbon nanotubes coated by conducting polypyrrole

• Main Authors: Bahrami, Afarin, Talib, Zainal Abidin, Mat Yunus, Wan Mahmood, Behzad, Kasra, Soltani, Nayereh
• Format: Article
• Language: English
• Published: Trans Tech Publications 2012
• Online Access: http://psasir.upm.edu.my/id/eprint/52228/1/Synthesis%20and%20physical%20characterization%20of%20carbon%20nanotubes%20coated%20by%20conducting%20polypyrrole.pdf; http://psasir.upm.edu.my/id/eprint/52228/; https://www.scientific.net/AMR.364.50
• Institution: Universiti Putra Malaysia

This study describes the preparation of polypyrrole multiwall carbon nanotube (PPy/MWNT) composites by in situ chemical oxidative polymerization. Various ratios of functionalized MWNTs are dispersed in the water, and PPy are then synthesized via in-situ chemical oxidative polymerization on the surface of the carbon nanotubes. The morphology of the resulting complex nanotubes (MWNT-PPY) was characterized by field-emission scanning electron microscopy (FESEM). The conductivity of each composite showed a maximum in the temperature scale of 120 – 160 °C and then decreased dramatically with the increase of temperature. The resultant PPy/MWNT nanotubes enhanced electrical conductivity and thermal stability of nanocomposite compared to PPy which was strongly influenced by the feed ratio of pyrrole to MWNTs.