Abstract
There is a significant accumulation of solution species in the film in all solution compositions and in the whole potential range studied. In 10 mol dm-3 HClO4 or H2SO4 solutions the films become highly swollen, which eventually leads to the dissolution of the films. Significant mass changes during the oxidation of the leucoemeraldine to emeraldine form can be observed only in the pH interval between pH 1 and 3, where the reduced poly(aniline) is practically uprotonated, while the half-oxidized material is protonated.
Original language | English |
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Pages (from-to) | 393-397 |
Number of pages | 5 |
Journal | Electrochimica Acta |
Volume | 38 |
Issue number | 2-3 |
DOIs | |
State | Published - Feb 1993 |
Externally published | Yes |
Funding
Acknowledgements-Thsist udyw as supportedb y the Hun-garian National ResearchF und (OTKA-2110)a nd by the Soros Foundation.
Keywords
- poly(aniline)
- polymer film electrodes
- protonation
- quartz crystal microbalance
- redox mechanism.