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

Abstract
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). This journal is © The Royal Society of Chemistry.

Citation
Chen, W., Rakhi, R. B., & Alshareef, H. N. (2013). Capacitance enhancement of polyaniline coated curved-graphene supercapacitors in a redox-active electrolyte. Nanoscale, 5(10), 4134. doi:10.1039/c3nr00773a

Acknowledgements
We thank the help from Qingxiao Wang for TEM, Dr Mohamed Hedhili for XPS analysis, and Olga Zausalina for the illustration drawing. This work was supported by the KAUST Graduate Fellowship, SABIC Postdoctoral Fellowship and KAUST baseline fund.

Publisher
Royal Society of Chemistry (RSC)

Journal
Nanoscale

DOI
10.1039/c3nr00773a

PubMed ID
23567992

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