Carbon monoxide oxidation over platinum: stable, oscillatory and quasi-chaotic regimes

Roberto E. Lagos, Tania Simões and Adolfo L. Godoy

Physica A: Statistical Mechanics and its Applications, 1998, vol. 257, issue 1, 401-407

Abstract: We model the heterogeneously catalyzed oxidation of CO over a Pt surface. A phase diagram analysis is used to probe the several steady state regimes and their stability. We incorporate an experimentally observed ‘slow’ sub-oxide kinetic step, thereby generalizing a previously presented model. In agreement with experimental data, stable, oscillatory and quasi-chaotic regimes are obtained. Furthermore, the inclusion of the sub-oxide step yields a relaxation oscillation regime.

Keywords: Chemical oscillations; Bifurcations; Relaxation; Chaos (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:257:y:1998:i:1:p:401-407

DOI: 10.1016/S0378-4371(98)00167-8

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