A new synchronization mechanism via Turing-like microscopic structures for CO oxidation on Pt(110)

Details A new synchronization mechanism via Turing-like microscopic structures for CO oxidation on Pt(110) A new synchronization mechanism via Turing-like microscopic structures for CO oxidation on Pt(110)

2002-10-31

arxiv.org/abs/cond-mat/0210699v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, 3 figures, no tables

Scientific paper

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 minimalist 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 a scaling laws which allow us to extrapolate to realistic diffusion rates, pattern size, and oscillation periods.

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