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Phys. Rev. E 69, 031604 (2004) [4 pages]

Synchronization of surface reactions via Turing-like structures

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R. Salazar and A. P. J. Jansen
Schuit Institute of Catalysis (ST/SKA), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands

V. N. Kuzovkov
Institute for Solid State Physics, University of Latvia, Kengaraga 8, LV-1063, Riga, Latvia

Received 13 November 2003; published 30 March 2004

We discuss an alternative to the traditional gas-phase coupling approach in order to explain synchronized global oscillations in CO oxidation on Pt(110). We use a microscopic model which includes structural Pt surface reconstruction via front propagation, and large diffusion rates for CO. The synchronization mechanism is associated with the formation of a Turing-like structure of the substrate. By using large parallel microscopic simulations we derive scaling laws which allow us to extrapolate to realistic diffusion rates, pattern size, and oscillation periods.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.69.031604
DOI:
10.1103/PhysRevE.69.031604
PACS:
82.65.+r, 02.70.Tt, 82.20.Wt, 82.40.Np