Kinetic oscillations in the catalytic CO oxidation on Pt(100) with adsorbed impurities
Por:
Chávez F., Vicente L., Perera A.
Publicada:
1 ene 2000
Resumen:
The effect of inert sites in the global oscillations in the oxidation of carbon monoxide (CO) on Pt(100) is studied analytically. The introduction of a fraction of inert sites can reduce considerably the extent of the oscillatory region. The study of the mean field model explains the features that arise upon increasing the density of impurities on the catalytic surface. Well cellular automata simulations are reproduced by the analytical solution of the model. The existence of a critical concentration of inert sites at which the oscillatory region vanishes is shown.
Filiaciones:
Chávez F.:
Depto. de Fis. y Quim. Teor., Facultad de Química, UNAM, 04510 México, D.F., Mexico
Vicente L.:
Depto. de Fis. y Quim. Teor., Facultad de Química, UNAM, 04510 México, D.F., Mexico
Perera A.:
Lab. de Phys. Theor. des Liquides, Univ. Pierre et Marie Curie, 4, place Jussieu, 75252 Paris Cedex 05, France
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