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

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    Type
    Article
    Authors
    Chen, Wei
    Baby, Rakhi Raghavan
    Alshareef, Husam N. cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Functional Nanomaterials and Devices Research Group
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2013
    Permanent link to this record
    http://hdl.handle.net/10754/562498
    
    Metadata
    Show full item record
    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
    Sponsors
    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
    ae974a485f413a2113503eed53cd6c53
    10.1039/c3nr00773a
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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