Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 13, Pages 6061-6066Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm15572a
Keywords
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Funding
- NSFC [51072028, 20876026, 20836002, 20725619]
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]
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Controllable production of graphene by simultaneously exfoliating and reducing graphite oxide (GO) under dielectric barrier discharge (DBD) plasma with various working gases, including H-2 (reducing), Ar (inert) and CO2 (oxidizing), has been investigated. The deoxygenation level of GO is related to the type of working gases while regardless of the bulk temperature during plasma discharge, which implicates a high-energy electron/ion bombardment deoxygenation mechanism. Acting as electrode materials in a supercapacitor cell with KOH electrolyte, graphene nanosheets (GS) from various plasmas exhibit high specific capacitance and good electrochemical stability. With the assistance of low temperature plasma, this approach has the potential to enable the fabrication of a broad spectrum of graphene-based composites that are sensitive to high temperatures.
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