Mass transport behavior of polypyrrole and poly(N-methylpyrrole) films in acetonitrile solutions
The mass transport mechanism of polypyrrole (PPy) and poly(N-methylpyrrole) (PMPy) films in an acetonitrile (AN) solution has been investigated with the cyclic electrochemical quartz crystal microbalance (EQCM) technique. Cations as well as anions take part in ion transport during the redox reaction of PPy films, and the break-in process occurs in the first negative scan. On the other hand, anion transport is dominant during the redox reaction of PMPy films, and no break-in process is observed. Solvent transport takes place in the same direction as cation transport in the case of PPy films, whereas it occurs in the opposite direction to anion transport in the case of PMPy films. (C) 1999 Elsevier Science S.A. All rights reserved.
- Publisher
- ELSEVIER SCIENCE SA
- Issue Date
- 1999-06
- Language
- English
- Article Type
- Article; Proceedings Paper
- Keywords
QUARTZ CRYSTAL MICROBALANCE; ELECTROGRAVIMETRIC IMPEDANCE TECHNIQUES; WATER TRANSPORT; POLYANILINE; ION
- Citation
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v.468, no.1, pp.104 - 109
- ISSN
- 0022-0728
- Appears in Collection
- CH-Journal Papers(저널논문)
- Files in This Item
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