Study of spatial pattern formation during the NO+H2/Rh(111) reaction by means of mathematical modeling

Recent investigations with the photoemission electron microscope showed the formation of spatial patterns (target patterns, spiral waves, disordered patterns) during the NO+H2 reaction over a Rh(111) single crystal surface. A five-variable mathematical model of the reaction-diffusion type has been d...

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Bibliographic Details
Published in:The Journal of chemical physics 1997-07, Vol.107 (3), p.965-978
Main Authors: Makeev, A. G., Janssen, N. M. H., Cobden, P. D., Slinko, M. M., Nieuwenhuys, B. E.
Format: Article
Language:English
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Summary:Recent investigations with the photoemission electron microscope showed the formation of spatial patterns (target patterns, spiral waves, disordered patterns) during the NO+H2 reaction over a Rh(111) single crystal surface. A five-variable mathematical model of the reaction-diffusion type has been developed to describe the experimental observations. A simplified version of this model was originally designed to explain the complex temporal behavior (e.g., oscillatory) found for the NO+H2 reaction on Rh(111). The simulation results successfully reproduce the main experimental findings and explain the underlying reasons for spatial pattern formation. In addition, the numerical studies predict a variety of self-organization phenomena which should be experimentally verified.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.474449