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Indexed by:期刊论文

Date of Publication:2013-12-01

Journal:JOURNAL OF POWER SOURCES

Included Journals:SCIE、EI

Volume:243

Page Number:350-353

ISSN No.:0378-7753

Key Words:Carbon nanofiber; Electrospinning; Graphene; Supercapacitor

Abstract:Electrospun carbon nanofiber/graphene (CNF/G) composites are prepared by in situ electrospinning polymeric nanofibers with simultaneous spraying graphene oxide, followed by heat treatment. The freestanding carbon nanofiber web acts as a framework for sustaining graphene, which helps to prevent the agglomeration of graphene and to provide a high conductivity for the efficient charge transfer to the pores. The as-obtained CNF/G composite exhibits a specific capacitance of 183 F g(-1), which is approximately 1.6 times higher than that of the pristine CNF. The results have demonstrated that the high performance of the CNF/G composite is due to the novel structure and the synergic effect of graphene and the carbon nanofibers. (C) 2013 Elsevier B.V. All rights reserved.