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Issue 28, 2014
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Nanoporous metal based flexible asymmetric pseudocapacitors

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Abstract

We report a flexible asymmetric supercapacitor assembled by polypyrrole (PPy) and manganese oxide supported by ultrathin three-dimensional nanoporous gold (NPG) electrodes. The highly conductive and free-standing NPG films act as both supports of the active materials and current collectors of the supercapacitor, which evidently enhance the specific capacitance of active materials of both the conducting polymer and the metal oxide. The high energy density and high power density can be realized from the PPy–NPG//MnO2–NPG asymmetric supercapacitor because of the wide cell voltage in an aqueous electrolyte and high specific capacitances of both PPy and MnO2 enhanced by NPG.

Graphical abstract: Nanoporous metal based flexible asymmetric pseudocapacitors

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Publication details

The article was received on 25 Feb 2014, accepted on 24 Apr 2014 and first published on 02 May 2014


Article type: Paper
DOI: 10.1039/C4TA00969J
Citation: J. Mater. Chem. A, 2014,2, 10910-10916
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    Nanoporous metal based flexible asymmetric pseudocapacitors

    Y. Hou, L. Chen, P. Liu, J. Kang, T. Fujita and M. Chen, J. Mater. Chem. A, 2014, 2, 10910
    DOI: 10.1039/C4TA00969J

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