Monte Carlo study of the CO-poisoning dynamics in a model for the catalytic oxidation of CO
نویسنده
چکیده
The poisoning dynamics of the Ziff–Gulari–Barshad @Phys. Rev. Lett. 56, 2553 ~1986!# model, for a monomer–dimer reaction, is studied by means of Monte Carlo simulations. Studies are performed within the monomer absorbing state and close to the coexistence point. Analysis of the average poisoning time (tp) allows us to propose a phenomenological scaling approach in which tp diverges logarithmically with the lattice side and algebraically with the distance to the coexistence point. The structure of monomer clusters during poisoning is analyzed and compared with observations at coexistence. © 2000 American Institute of Physics. @S0021-9606~00!51346-4#
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