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Issue 7, 2016
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Dual coexisting interconnected graphene nanostructures for high performance supercapacitor applications

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Abstract

A facile and scalable high-temperature molten salt method was used to synthesize a high-quality hierarchical carbon nanostructure consisting of graphene nanosheets and nanoscrolls with an interconnected network and high electrical conductivity. During the process, the intercalation of lithium and hydrogen from molten LiCl into graphite led to the formation of a coexisting graphene sheet–scroll nanostructure. An electrode using the fabricated interconnected carbon nanostructure showed a highly reversible specific capacitance of 213 F g−1 at 1 A g−1, excellent capacitance retention (84.5% of the initial specific capacitance (1 A g−1) at 50 A g−1), and good cyclability (97.9% after 10 000 cycles). Such remarkable electrochemical performance is desirable for supercapacitor/ultracapacitor applications.

Graphical abstract: Dual coexisting interconnected graphene nanostructures for high performance supercapacitor applications

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Publication details

The article was received on 17 Mar 2016, accepted on 24 Mar 2016 and first published on 29 Mar 2016


Article type: Communication
DOI: 10.1039/C6EE00815A
Citation: Energy Environ. Sci., 2016,9, 2249-2256

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    Dual coexisting interconnected graphene nanostructures for high performance supercapacitor applications

    H. Kim, A. R. Kamali, K. C. Roh, K. Kim and D. J. Fray, Energy Environ. Sci., 2016, 9, 2249
    DOI: 10.1039/C6EE00815A

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