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Spatiotemporal patterns in CO oxidation on Pt(110): the role of nonlinear diffusion
J Verdasca1, P Borckmans, G Dewel
1Service de Chimie-Physique, Code Postal 231, Université Libre de Bruxelles, 1050 Bruxelles, Belgium.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|December 12, 2001
Abstract:
Standing-wave patterns observed in the CO + O2 reaction on Pt(110) are described by a model that explicitly takes into account the coupling between the transport of adsorbed CO and the adsorbate-induced structural transformation of the substrate. We show that synchronization of the surface is achieved through nucleation and growth processes even in the absence of gas-phase coupling.