Synthesis and Physical Characterization of Carbon Nanotubes Coated by Conducting Polypyrrole
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.
Zainal Arifin Ahmad, M.A. Yarmo, Fauziah Abdul Aziz, Dr. Meor Yusoff Meor Sulaiman, Badrol Ahmad, Khairul Nizar Ismail, Abdul Rashid Jamaludin, Muhammad Azwadi Sulaiman and Mohd Fariz Ab Rahman
A. Bahrami et al., "Synthesis and Physical Characterization of Carbon Nanotubes Coated by Conducting Polypyrrole", Advanced Materials Research, Vol. 364, pp. 50-54, 2012