Anion Movement in Polypyrrole Films Prepared in Lithium Dodecylsulfate Aqueous Solutions
- 1 April 1996
- journal article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 280 (1) , 145-150
- https://doi.org/10.1080/10587259608040323
Abstract
Electrochemical quartz crystal microbalance (EQCM) was used to study the redox reaction of polypyrrole (PPy) prepared in an aqueous solution containing anionic surfactant. EQCM result confirmed that the small cation in the electrolyte solution rapidly moved into/out of the PPy film during redox reaction at a potentiodynamic condition and also the bulky anion, dodecylsulfate ion (DS), additionally took part in redox reaction, especially in positive potential range above-0.2 V. The movement of anion was more clearly seen at potentiostatic condition than in voltammetric measurement, which implies the rate dependency of the anion movement in PPy film.Keywords
This publication has 3 references indexed in Scilit:
- Redox Behavior of Polypyrrole Films in Different SolventsMolecular Crystals and Liquid Crystals, 1993
- The role of ion exchange in the redox processes of polypyrrole/dodecyl sulfate films as studied by electrogravimetry using a quartz crystal microbalanceSynthetic Metals, 1992
- Electrochemical study of polypyrrole/dodecyl sulphateJournal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1989