Author: Li L. Drillet J. Mácová Z. Dittmeyer R. Jüttner K.
Publisher: MAIK Nauka/Interperiodica
ISSN: 1023-1935
Source: Russian Journal of Electrochemistry, Vol.42, Iss.11, 2006-11, pp. : 1193-1201
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Abstract
Membranes Nafion 117 are modified with poly(3,4-ethylenedioxythiophene) (PEDT) by chemical polymerization of EDT with H2O2 or FeCl3 as the oxidants in a two-compartment cell. Depending on the oxidant and polymerization conditions, PEDT is deposited either as a thin film on the membrane surface or inside the Nafion membrane depending on whether FeCl3 or H2O2 is used as the oxidant. The decrease in the ionic conductivity and methanol permeability is studied as a function of the polymerization time. A linear dependence is found with H2O2 and a