Muthu, M.S.Bhat, D.K.2026-02-052008Journal of Applied Polymer Science, 2008, 107, 4, pp. 2165-2170218995https://doi.org/10.1002/app.27166https://idr.nitk.ac.in/handle/123456789/27750A 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.Activated carbonCapacitanceConducting polymersCyclic voltammetryDepositionElectrodesElectrochemical depositionNapthalenesulphonic acidPoly-ethylenedioxythiopheneSupercapacitorsSymmetric capacitorsCapacitorsactivated carbonorganic acidpolyethylenepolymerization