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Journal Article

Pattern formation on the edge of chaos: Experiments with CO oxidation on a Pt(110) surface under global delayed feedback

MPS-Authors
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Bertram,  Matthias
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Beta,  Carsten
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Pollmann,  Michael
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Mikhailov,  Alexander S.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Rotermund,  Harm H.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Ertl,  Gerhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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PhysRevE.67.036208.pdf
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Citation

Bertram, M., Beta, C., Pollmann, M., Mikhailov, A. S., Rotermund, H. H., & Ertl, G. (2003). Pattern formation on the edge of chaos: Experiments with CO oxidation on a Pt(110) surface under global delayed feedback. Physical Review E, 67(03), 036208-1-036208-9. doi:10.1103/PhysRevE.67.036208.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-109C-C
Abstract
Experiments with catalytic oxidation of carbon monoxide on Pt(110) show that chemical turbulence in this system can be suppressed by application of appropriate global delayed feedback. Different spatiotemporal patterns, seen near the transition from turbulence to uniform oscillations, are investigated. Such patterns include intermittent turbulence, oscillatory standing waves, cellular structures, and phase clusters. Using a method based on the Hilbert transform, spatial distributions of local phase and amplitude in these patterns are reconstructed from the experimental data.