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Pattern Formation on the Edge of Chaos: CO Oxidation on Pt(110) under Global Delayed Feedback

Matthias Bertram·Michael Pollmann·Harm H. Rotermund·Alexander S. Mikhailov·Gerhard Ertl
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Abstract

Experiments with catalytic CO oxidation on Pt(110) show that chemical turbulence in this system can be suppressed by application of appropriate global delayed feedbacks. Different spatiotemporal patterns, seen near a transition from turbulence to uniform oscillations, are investigated. Using a method based on the Hilbert transform, spatial distributions of local phase and amplitude in such patterns are reconstructed from the experimental data. The observed phenomena are reproduced in simulations using a theoretical model of the reaction.

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Matthias Bertram, Michael Pollmann, Harm H. Rotermund, Alexander S. Mikhailov, Gerhard Ertl. 2001-11-12. Pattern Formation on the Edge of Chaos: CO Oxidation on Pt(110) under Global Delayed Feedback. https://arxiv.org/abs/nlin/0111026

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