Activated carbon-polyethylenedioxythiophene composite electrodes for symmetrical supercapacitors
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Date
2008
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Abstract
A symmetrical (p/p) supercapacitor has been fabricated by making use of activated carbon (AC)-poly-ethylenedioxythiophene (PEDPT)-composite electrodes for the first time. The composite electrodes have been prepared via electrochemical deposition of ?-napthalenesulphonate doped PEDPT onto AC electrodes. The characteristics of the electrodes and the fabricated supercapacitor have been investigated using cyclic voltammetry (CV) and AC impedance spectroscopy. The electrodes show a maximum specific capacitance of 158 Fg-1 at a scan rate of 10 mV s_1. This indicates that the in situ electro-polymerization of ethylenedioxythiophene (EDPT) onto AC could improve the performance of carbon electrodes for use in supercapacitors. © 2007 Wiley Periodicals, Inc.
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Keywords
Activated carbon, Capacitance, Conducting polymers, Cyclic voltammetry, Deposition, Electrodes, Electrochemical deposition, Napthalenesulphonic acid, Poly-ethylenedioxythiophene, Supercapacitors, Symmetric capacitors, Capacitors, activated carbon, organic acid, polyethylene, polymerization
Citation
Journal of Applied Polymer Science, 2008, 107, 4, pp. 2165-2170