Critical behavior in an atomistic model for a bistable surface reaction: CO oxidation with rapid CO diffusion

Date
2003-07-01
Authors
Pavlenko, N.
Imbihl, R.
Evans, James
Evans, James
Liu, Da-Jiang
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Altmetrics
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Research Projects
Organizational Units
Ames Laboratory
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Mathematics
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Abstract

Critical behavior associated with the loss of bistability for an atomistic model for CO oxidation on surfaces in the limit of infinite diffusion of CO, was analyzed. A 'hybrid' treatment which incorporated a lattice-gas description of the O adlayer, and tracked just the number of adsorbed CO, was used. The study elucidated fluctuation effects observed in experiments of CO oxidation on the nanoscale facets of metal-field emitter tips.

Description
<p>This article is from <em>Physical Review E</em> 68 (2003): 016212, doi: <a href="http://dx.doi.org/10.1103/PhysRevE.68.016212" target="_blank">10.1103/PhysRevE.68.016212</a>. Posted with permission.</p>
Keywords
adsorption, bifurcation (mathematics), carbon monoxide, diffusion, nanoscale systems, surface reactions
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