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Study of the electrochemical stability of polypyrrole coating on iron in sodium salicylate aqueous solution
Abstract
In this work electrochemical stability of optimized PPy film on iron in aqueous solution of sodium salicylate is studied. The main drawback of conducting polymers is their possibility to undergo an irreversible degradation (overoxidation). The overoxidized polymers lose their properties, for example, conductivity and redox activity, what excludes them from some practical applications. This study demonstrates that lowering the concentration of salicylate in the electrolyte increases the electrode potential, at which overoxidation of PPy begins. It widens the electrode potentials, within which such a polymer can be used. Moreover, it is evidenced that even though the electrolyte concentration is lowered, the redox activity and the electrical properties of the PPy film are retained.
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Authors (3)
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Sannakaisa Virtanen Prof.
- University of Erlangen-Nuremberg Department of Materials Science
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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SYNTHETIC METALS
no. 221,
pages 1 - 7,
ISSN: 0379-6779 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Cysewska K., Virtanen S., Jasiński P.: Study of the electrochemical stability of polypyrrole coating on iron in sodium salicylate aqueous solution// SYNTHETIC METALS. -Vol. 221, (2016), s.1-7
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.synthmet.2016.09.022
- Verified by:
- Gdańsk University of Technology
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