Electrochemical quartz crystal microbalance study of ion transport accompanying charging-discharging of poly(pyrrole) films |
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| Authors: | György Inzelt Vilmos Kertész Ann-Sofi Nybäck |
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| Institution: | Department of Physical Chemistry, E?tv?s Loránd University, P.O. Box 32, H-1518 Budapest 112, Hungary, HU
Laboratory of Analytical Chemistry, Abo Akademi University, Biskopsgatan 8, FIN-20500 Abo, Finland, FI
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| Abstract: | Electrochemical quartz crystal microbalance studies on poly(pyrrole) electrodes revealed a complex nature of the potential-dependent
sorption of ionic substances. It is found that the relative contribution of anions and cations to the overall charge transport
process depends upon several factors, such as the oxidation state of the polymer, the composition of the supporting electrolyte
as well as on the film thickness. The phenomena observed are discussed in terms of morphological transformations arising as
a result of interactions between the polymer and the mobile substances.
Received: 21 August 1998 / Accepted: 21 October 1998 |
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| Keywords: | Poly(pyrrole) Electrochemical quartz crystal microbalance Ionic charge transport |
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