Microelectrode studies of the switching of polyaniline films in unbuffered and buffered solutions
β Scribed by Nyholm, L.; Peter, L.M.
- Book ID
- 122950031
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 265 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0379-6779
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π SIMILAR VOLUMES
The pohuographic reduction of 2,4,6trinitro diphenylamine was found to give three waves of nearly equal height in all pH regions in buffered solutions and also in unbuffered methanol-water mixtures. The waves were shown to be diffusion-controlled and irreversible on the basis of the usual criteria.
An impedance study has been carried out in aqueous acidic and in neutral organic solutions on polyaniline (PAn) films prepared with the cyclic voltammetry technique. Charge transfer resistances are rather low at intermediate PAn oxidation levels in agreement with the metallic behaviour reported at t