Repositorio de producción científica de la Universidad de Sevilla

Multiplicity and oscillations in a model for catalyzed oxidation of carbon monoxide

 

Advanced Search
 
Opened Access Multiplicity and oscillations in a model for catalyzed oxidation of carbon monoxide
Cites

Show item statistics
Icon
Export to
Author: Lemos Fernández, María del Carmen
Córdoba Zurita, Antonio
Department: Universidad de Sevilla. Departamento de Física de la Materia Condensada
Date: 1994
Published in: Physical Review B-Condensed Matter, 49 (20), 14648-14656.
Document type: Article
Abstract: We extend a model proposed for explaining multiplicity and oscillations of concentrations and temperature in catalyzed oxidation of carbon monoxide; the importance of the dimension of the system and the closure approximation applied to the results, and, especially to the oscillatory behavior, is analyzed. Kinetic phase transitions, namely, single state multiplicity, single state oscillations, and multiplicity oscillations are found, depending on the reaction heat and the temperature relaxation parameter. Also, the role played by desorption of reactants is considered. When there is no desorption, temperature oscillations take place around room temperature, but if desorption is operative, oscillations occur about a higher temperature. For the one-dimensional case a spurious kinetic phase transition is obtained when the singlet closure approximation is applied
Cite: Lemos Fernández, M.d.C. y Córdoba Zurita, A. (1994). Multiplicity and oscillations in a model for catalyzed oxidation of carbon monoxide. Physical Review B-Condensed Matter, 49 (20), 14648-14656.
Size: 424.8Kb
Format: PDF

URI: http://hdl.handle.net/11441/57882

DOI: 10.1103/PhysRevB.49.14648

See editor´s version

This work is under a Creative Commons License: 
Attribution-NonCommercial-NoDerivatives 4.0 Internacional

This item appears in the following Collection(s)