2011
DOI: 10.1039/c1ee01198g
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What is the choice for supercapacitors: graphene or graphene oxide?

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Cited by 691 publications
(444 citation statements)
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“…Previous studies on KOH interaction with graphene were limited to its role as an electrolyte [30][31][32] as well as an agent for chemical modification of graphene [33] for supercapacitive applications, or as a processing step to remove graphene from SiO 2 [34,35]. However a comprehensive study on the interaction of KOH processing on the structural and electrical properties of micronsized single layer flakes is missing.…”
mentioning
confidence: 99%
“…Previous studies on KOH interaction with graphene were limited to its role as an electrolyte [30][31][32] as well as an agent for chemical modification of graphene [33] for supercapacitive applications, or as a processing step to remove graphene from SiO 2 [34,35]. However a comprehensive study on the interaction of KOH processing on the structural and electrical properties of micronsized single layer flakes is missing.…”
mentioning
confidence: 99%
“…The deviations of the CV curves at specific potential regions are related to the rapid Faradaic reactions, which may be correlated to the presence of additional oxygen-containing functional groups, especially epoxy and alkoxy, at the surface of the carbon. 27,30 PRGO films exhibit the largest current density in the CV curves, implying a larger capacitance than those of the GO and CCG films. Figure 3b shows the CV curves of the PRGO films at different scan rates.…”
Section: Fabrication Of Prgo Films Y Shao Et Almentioning
confidence: 99%
“…Our PRGO films are directly coated onto conductive substrate, which advantageously minimizes the contact resistance, thus enabling the double-layer charges to be conveniently transferred to the current collector to cause the partial reduction of GO films and to further enhance the capacitance performance. 30 A symmetrical two-electrode system was used to characterize the electrochemical characteristics of the as-fabricated PRGO films in comparison with those of the GO films and the CCG films. Figure 3a shows the cyclic voltammograms (CVs) of the PRGO films, the GO films and the CCG films in 1 mol l À1 Na 2 SO 4 aqueous solutions for applied potentials between 0 V and 0.8 V at a scan rate of 50 mV s À1 .…”
Section: Fabrication Of Prgo Films Y Shao Et Almentioning
confidence: 99%
“…Climate change and the ever decreasing storage of non-regenerative fossil fuels have forced human beings to pay much attention to sustainable and regenerative energies and their conversion and storage [1]. As an energy-storage device, supercapacitor with the advantages of high power density, short charging time, low cost and long life cycle has attracted considerable attention in recent years [2].There are three type of materials to fabricate the electrode of supercapacitors: carbon materials [3], transition metal oxides [4], and conducting polymer [5,6].…”
Section: Introductionmentioning
confidence: 99%