Defect-mediated turbulence in a catalytic surface reaction

Beta, Carsten; Mikhailov, Alexander S.; Rotermund, Harm H.; Ertl, Gerhard

doi:10.1209/epl/i2006-10215-5

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Defect-mediated turbulence in a catalytic surface reaction

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Beta, Carsten
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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Citation

Beta, C., Mikhailov, A. S., Rotermund, H. H., & Ertl, G. (2006). Defect-mediated turbulence in a catalytic surface reaction. Europhysics Letters, 75(6), 868-874. doi:10.1209/epl/i2006-10215-5.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0390-9

Abstract

We analyze the statistical properties of topological defects in an experimental reaction-diffusion system – the catalytic CO oxidation on Pt(110). Based on the gain and loss rates of defects, a probabilistic description of defect-mediated turbulence in this system is derived. We observe deviations from theoretical predictions for the statistics of topological defects that can be explained by the presence of short-range correlations between defects and underline the importance of correlations for defect dynamics in such systems.