The effect of poisoning species on the oscillatory dynamics of an electrochemical reaction

Electrochemistry is a prone field for observing complex behavior such as simple and mixed-mode oscillations, chaos and spatiotemporal pattern formation. Although modeling and numerical analysis of those systems is relatively common, analysis of the inner structure of the oscillatory region is a rath...

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Bibliographic Details
Published in:Journal of physics. Conference series 2011-03, Vol.285 (1), p.012003-8
Main Authors: Batista, B C, Ferreira, G C A, Varela, H
Format: Article
Language:English
Subjects:
Amplitudes
Coherence
Dynamical systems
Dynamics
Electrochemistry
Mathematical models
Numerical analysis
Oscillations
Physics
Poisons
Surface chemistry
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Summary:Electrochemistry is a prone field for observing complex behavior such as simple and mixed-mode oscillations, chaos and spatiotemporal pattern formation. Although modeling and numerical analysis of those systems is relatively common, analysis of the inner structure of the oscillatory region is a rather unexplored issue. We describe in this paper a numerical study of a surface catalyzed reaction that is being poisoned by a foreign adsorbing species. The effect of the poison coverage on the oscillatory period and amplitude is discussed with the help of parameter plane diagrams and mechanistic analysis. A coherent picture explaining the effect of the poison adsorption on the dynamic features is then constructed based on the obtained data.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/285/1/012003