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Carbon Nanotube/Polyaniline Composite Films Prepared by in situ Electrochemical Polymerization for Electrochemical Supercapacitors
Published: 31 October 2014 by MDPI in The 18th International Electronic Conference on Synthetic Organic Chemistry session Polymer and Supramolecular Chemistry
Abstract: In situ electrochemical polymerization of an aniline solution containing multi-walled carbon nanotube (MWCNT) of 0.8 wt.% was used to prepare (MWCNT)/polyaniline(PANI) composite films. The electrochemical capacitance performances of these films were investigated with cyclic voltammetry (CV) and ac impedance spectroscopy in 1 M H2SO4 with a three-electrode system. It was found that the MWCNT/PANI films show much higher specific capacitance (SC), better cyclic stability and more promising for applications in supercapacitors than a pure PANI film electrode. The highest specific capacitance value of 500 F g−1 was obtained for the MWCNT/PANI composite film.
Keywords: Carbon Nanotube; Polyaniline, Supercapacitors; In Situ Electrochemical Polymerization