Article
Multiplicity and oscillations in a model for catalyzed oxidation of carbon monoxide
Author/s | Lemos Fernández, María del Carmen
Córdoba Zurita, Antonio |
Department | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Publication Date | 1994 |
Deposit Date | 2017-04-19 |
Published in |
|
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 ... 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 |
Funding agencies | Dirección General de Investigación Científica y Técnica (DGICYT). España |
Project ID. | PB91-0608 |
Citation | 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. |
Files | Size | Format | View | Description |
---|---|---|---|---|
Multiplicity and oscillations.pdf | 424.8Kb | [PDF] | View/ | |