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  Complex patterns in a periodically forced surface reaction

Bertram, M., Beta, C., Rotermund, H. H., & Ertl, G. (2003). Complex patterns in a periodically forced surface reaction. Journal of Physical Chemistry B, 107(35), 9610-9615. doi:10.1021/jp0341927.

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 Creators:
Bertram, Matthias1, Author           
Beta, Carsten1, Author           
Rotermund, Harm H.1, Author           
Ertl, Gerhard1, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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 Abstract: Effects of time-periodic, spatially uniform forcing on oscillatory chemical turbulence are studied in experiments with catalytic CO oxidation on a platinum(110) single-crystal surface. A variety of complex spatiotemporal reaction-diffusion patterns is investigated under variation of the forcing amplitude and frequency. Near harmonic resonance with the forcing, intermittent turbulence characterized by the presence of localized turbulent bubbles on a homogeneously oscillating background and disordered cellular structures are observed. In the parameter region where the system exhibits 2:1 subharmonic resonance, irregular oscillatory stripes and cluster patterns are found. For such resonant patterns, a frequency demodulation technique is used to reconstruct phase and amplitude variables from the experimental data.

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Language(s): eng - English
 Dates: 2003-07-25
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Journal of Physical Chemistry B
  Alternative Title : J. Phys. Chem. B
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 107 (35) Sequence Number: - Start / End Page: 9610 - 9615 Identifier: -