Abstract
Poly(3,4-ethylenedioxythiophene) coated Manganese Dioxide (PEDOT/) composite electrode was fabricated by simply immersing the electrode in an acidic aqueous solution containing 3,4-ethylenedioxythiophene (EDOT) monomers. Analysis of open-circuit potential of the electrode in the solution indicates the reduction of outer surface of to dissolved ions and simultaneously oxidation of EDOT monomer to PEDOT on the surface to form a PEDOT shell via a galvanic displacement reaction. Analysis of cyclic voltammograms and specific capacitance of the PEDOT/, conductive carbon added and conductive carbon added PEDOT/ electrodes suggests that the conductive carbon acted mainly to provide a continuous conducting path in the electrode to improve the rate capability and the PEDOT layer on acts to increase the active reaction site of .
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