Characterizing kinetics near a first-order catalytic-poisoning transition

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1991
Authors
Evans, James
Miesch, M.
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Ames Laboratory
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Physics and Astronomy
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Mathematics
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Abstract

We conside the kinetics near a first-order poisoning transition for simple surface reaction models which exlude nonreactive desorption. Elucidation of the development and growth of the reactive steady state from a near-poisoned state is achieved via an ‘‘oxidation epidemic’’ analysis of the evolution of an empy patch embedded in the poisoned phase. Associated critical exponents vary strongly with reaction rate, and reflect slow kinetics. The increase in epidemic survival probability with initial patch size is smooth, and described by additional exponents, rather than indicating a critical size for survival.

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This article is published as Evans, J. W., and M. S. Miesch. "Characterizing kinetics near a first-order catalytic-poisoning transition." Physical review letters 66, no. 6 (1991): 833, doi:10.1103/PhysRevLett.66.833. Posted with permission.

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