Artículos de revistas
Carbon monoxide oxidation over platinum: Stable, oscillatory and quasi-chaotic regimes
Physica A: Statistical Mechanics and its Applications, v. 257, n. 1-4, p. 401-407, 1998.
Universidade Estadual Paulista (Unesp)
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. © 1998 Elsevier Science B.V. All rights reserved.