Composite material for supercapacitors formed by polymerization of aniline in the presence of graphene oxide nanosheets

The composite material was obtained by the polymerization of aniline in the presence of graphene oxide nanosheets. The resulting composite containing polyaniline (72%) and graphene oxide nanosheets (28%) was investigated by XPS, TGA, Raman and IR spectroscopy. A partial reduction of graphene oxide was observed in the process of polymerization. The specific capacitance of the polyaniline/graphene oxide composite electrode in H2SO4 (1 M concentration), corresponding to its discharge from 0.700 to 0.052 V, was found to be 547 F g(-1). (c) 2012 Elsevier B.V. All rights reserved.