Non equivalent adsorption sites on the ZGB catalytic reaction model
نویسندگان
چکیده
We studied in this work a modified version of the Ziff, Gulari and Barshad (ZGB) model in which the adsorption probabilities of CO and O 2 are site dependent. We employed Monte Carlo simulations to determine the phase diagram of the model as a function of the partial pressure of CO in the gaseous phase, and of the relative adsorption probabilities. For the case where there is no site with affinity only to O 2 adsorption, we found that the non physical O-poisoned state disappears. This feature can not be seen in the usual ZGB model.
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