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Issue 11, 2012
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Conducting polymer/carbon nanocoil composite electrodes for efficient supercapacitors

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Abstract

Herein, we report for the first time, conducting polymer (polyaniline (PANI) and polypyrrole (PPY)) coated carbon nanocoils (CNCs) as efficient binder-free electrode materials for supercapacitors. CNCs act as a perfect backbone for the uniform distribution of the conducting polymers in the composites. In two electrode configuration, the samples exhibited high specific capacitance with the values reaching up to 360 and 202 F g−1 for PANI/CNCs and PPY/CNCs respectively. The values obtained for specific capacitance and maximum storage energy per unit mass of the composites were found to be comparable to one of the best reported values for polymer coated multi-walled carbon nanotubes. In addition, the fabricated PANI/CNC based supercapacitors exhibited a high value of 44.61 Wh kg−1 for maximum storage energy per unit mass. Although the devices exhibit an initial capacitance loss due to the instability of the polymer, the specific capacitance stabilizes at a fixed value after 500 charge–discharge cycles.

Graphical abstract: Conducting polymer/carbon nanocoil composite electrodes for efficient supercapacitors

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Publication details

The article was received on 08 Nov 2011, accepted on 06 Jan 2012 and first published on 06 Feb 2012


Article type: Paper
DOI: 10.1039/C2JM15740C
Citation: J. Mater. Chem., 2012,22, 5177-5183
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    Conducting polymer/carbon nanocoil composite electrodes for efficient supercapacitors

    R. B. Rakhi, W. Chen and H. N. Alshareef, J. Mater. Chem., 2012, 22, 5177
    DOI: 10.1039/C2JM15740C

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