Capacitance behaviors of polyaniline/graphene nanosheet composites prepared by alinine chemical polymerization

Title
Capacitance behaviors of polyaniline/graphene nanosheet composites prepared by alinine chemical polymerization
Authors
박수진
Keywords
capacitance behaviors, polyaniline, graphene, chemical polymerization
Issue Date
2013
Publisher
Carbon Letters
Series/Report no.
Carbon Letters; 제14권 제1호 pp 51~54
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 H2SO4 electrolyte. Among the prepared samples, the PANI/GNS (having 40 wt% aniline content) showed the highest specific capacitance, 528 Fg-1, at 10 mVs-1. 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.
URI
http://dx.doi.org/10.5714/CL.2012.14.1.051
http://dspace.inha.ac.kr/handle/10505/33968
ISSN
1976-4251
Appears in Collections:
College of Natural Science(자연과학대학) > Chemistry (화학) > Local Access Journal Papers, Reports(화학 논문, 보고서)

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