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Title: Surfactant-intercalated, chemically reduced graphene oxide for high performance supercapacitor electrodes
Authors: Zhang, K. 
Mao, L.
Zhang, L.L. 
On Chan, H.S. 
Zhao, X.S. 
Wu, J. 
Issue Date: 28-May-2011
Citation: Zhang, K., Mao, L., Zhang, L.L., On Chan, H.S., Zhao, X.S., Wu, J. (2011-05-28). Surfactant-intercalated, chemically reduced graphene oxide for high performance supercapacitor electrodes. Journal of Materials Chemistry 21 (20) : 7302-7307. ScholarBank@NUS Repository.
Abstract: A series of surfactant-stabilized graphene materials were prepared by intercalation of graphene oxide (GO) with different surfactants, tetrabutylammonium hydroxide (TBAOH), cetyltrimethylammonium bromide (CTAB) and sodium dodecylbenzene sulfonate (SDBS), followed by reduction using hydrazine. The materials were fully characterized, and the surfactants were found to be successfully intercalated in both GO and the reduced graphene oxide. As well as stabilizing the morphology of single layer or few-layer structure of graphene sheets during reduction, the presence of surfactants in graphene materials can also enhance the wettability of the graphene surface and thus improve its performance as a supercapacitor electrode. When the graphene materials were used as an electrode for a supercapacitor, the highest specific capacitance of 194 F g-1 was obtained from the TBAOH stabilized graphene at a specific current density of 1 A g-1 in 2 M H2SO4 electrolyte. © 2011 The Royal Society of Chemistry.
Source Title: Journal of Materials Chemistry
ISSN: 09599428
DOI: 10.1039/c1jm00007a
Appears in Collections:Staff Publications

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