Capacitance enhancement of polyaniline coated curved-graphene supercapacitors in a redox-active electrolyte

We show, for the first time, a redox-active electrolyte in combination with a polyaniline-coated curved graphene active material to achieve significant enhancement in the capacitance (36-92% increase) compared to supercapacitors that lack the redox-active contribution from the electrolyte. The super...

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Bibliographic Details
Published in:Nanoscale 2013-05, Vol.5 (10), p.4134-4138
Main Authors: Chen, Wei, Rakhi, R B, Alshareef, H N
Format: Article
Language:English
Subjects:
Capacitance
Capacitors
Electrolytes
Graphene
Nanocomposites
Nanomaterials
Nanostructure
Supercapacitors
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Summary:We show, for the first time, a redox-active electrolyte in combination with a polyaniline-coated curved graphene active material to achieve significant enhancement in the capacitance (36-92% increase) compared to supercapacitors that lack the redox-active contribution from the electrolyte. The supercapacitors based on the redox-active electrolyte also exhibit excellent rate capability and very long cycling performance (>50,000 cycles).
ISSN:2040-3364
2040-3372
DOI:10.1039/c3nr00773a