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Modelling pattern formation in CO + O2 on Pt{1 0 0}

✍ Scribed by I.M. Irurzun; R.B. Hoyle; M.R.E. Proctor; D.A. King

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 299 KB
Volume: 377
Category: Article
ISSN: 0009-2614
DOI: 10.1016/s0009-2614(03)01079-0

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✦ Synopsis

We extend a detailed kinetic model for CO + O 2 on Pt{1 0 0} to describe pattern formation. The model includes: (i) a non-linear power law to describe the phase transition, (ii) trapping and untrapping processes explicitly considered, and (iii) experimentally determined coverage-dependent sticking probabilities and rate constants. This model is extended to include diffusion and gas global coupling. Diffusion is included through a mass-balance equation which couples the migration of CO with the phase transition. Gas global coupling is introduced considering realistic values of the pumping flow, the reactor volume and the size of the crystal.

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Modelling pattern formation in CO&#xa0;+&#xa0;O2 on Pt{1&#xa0;0&#xa0;0}

✦ Synopsis

Modelling pattern formation in CO + O2 on Pt{1 0 0}