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Capacitance behaviors of Polyaniline/Graphene Nanosheet Composites Prepared by Aniline Chemical Polymerization
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  • Journal title : Carbon letters
  • Volume 14, Issue 1,  2013, pp.51-54
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2012.14.1.051
 Title & Authors
Capacitance behaviors of Polyaniline/Graphene Nanosheet Composites Prepared by Aniline Chemical Polymerization
Kim, Jieun; Park, Soo-Jin; Kim, Seok;
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 Abstract
In this study, polyaniline (PANI)/graphene nanosheet (GNS) composites were synthesized through chemical oxidation polymerization by changing the weight ratio of aniline monomers. To examine the morphological structure of the composites, scanning electron microscopy and transmission electron microscopy (TEM) were conducted. TEM results revealed that fibril-like PANI with a diameter of 50 nm was homogeneously coated on the surface of the GNS. The electrochemical properties of the composites were studied by cyclic voltammetry in 1 M electrolyte. Among the prepared samples, the PANI/GNS (having 40 wt% aniline content) showed the highest specific capacitance, 528 , at 10 . The improved performance was attributed to the GNS, which provides a large number of active sites and good electrical conductivity. The resulting composites are promising electrode materials for high capacitative supercapacitors.
 Keywords
capacitance behaviors;polyaniline;graphene;chemical polymerization;
 Language
English
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