Journal: | Ecletica quimica |
Database: | |
System number: | 000552775 |
ISSN: | 0100-4670 |
Authors: | Tkach, Volodymyr1 Nechyporuk, Vasyl Vasylyovych1 Slipenyuk, Oksana1 |
Institutions: | 1Universidade Nacional de Chernivtsi, |
Year: | 2012 |
Volumen: | 37 |
Number: | 1 |
Pages: | 72-78 |
Country: | Brasil |
Language: | Inglés |
English abstract | The electrochemical behavior of the potentiostatic electrotransformation system from cobalt (II) salts to cobalt (III) oxyhydroxycompounds in the presence of fluoro ions (which promotes the dissolution of cobalt(III) oxyhydroxycompounds) on platinum, which acts as an oscillator, has been described mathematically. The corresponding mathematical model was analyzed using linear stability theory and bifurcation analysis. It is shown that the oscillations in this system occur because of the interaction between the film particles. For the case of electrosynthesis of polymeric composites of cobalt oxyhydroxy compounds with conductive polymers in the absence of fluoro ions, the factor most responsible for the oscillatory behavior is the polymerization factor. |
Keyword: | Cobalt, Passive films, Protective coatings, Polymeric composites, Conductive polymers, Electrochemical oscillations |
Full text: | Texto completo (Ver PDF) |