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Journal article

Ion Movement in Polypyrrole/Dodecylbenzenesulphonate Films in aqueous and non-aqueous electrolytes

By Vidanapathirana, K.; Careem, M.A.; Skaarup, Steen1; West, Keld2

From

Department of Chemistry, Technical University of Denmark1

Risø National Laboratory for Sustainable Energy, Technical University of Denmark2

The electrochemical characteristics during the redox process of polypyrrole (PPy) films, prepared using dodecylbenzenesulphonate (DBS-) dopant species, have been investigated using a combination of cyclic voltammetry and Electrochemical Quartz Crystal Microbalance (EQCM) measurements. Investigations were carried out using aqueous and non-aqueous electrolytes to study the effect of solvent on the ion movement during redox processes.

When PPy films are cycled in aqueous electrolytes transport of both anion and cation occurs during oxidation and reduction. However, when cycled in the nonaqueous electrolyte propylene carbonate (PC) only anion movement takes place.

Language: English
Year: 2002
Pages: 331-335
ISSN: 18727689 and 01672738
Types: Journal article
DOI: 10.1016/S0167-2738(02)00530-1
Keywords

7-I poly Conducting polymers Cyclic voltammetry Electrochemical quartz crystal microbalance Ion movement Polypyrrole

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