Journal
JOURNAL OF POWER SOURCES
Volume 196, Issue 14, Pages 6003-6006Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2011.02.092
Keywords
Graphene; Modification; Supercapacitor
Funding
- California EISG [55697A/07-21]
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Chemical modification of graphene nanosheets by KOH was examined as a way to enhance the specific capacity of graphene nanosheets in supercapacitor. Fourier transform infrared spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy were used to investigate the effects of the treatment on the surface of the graphene nanosheets. The specific capacitance of 136 Fg(-1) was obtained for KOH treated graphene by integration of the cyclic voltammogram, an increase of about 35% compared with that for the pristine graphene nanosheets. (C) 2011 Elsevier B.V. All rights reserved.
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