✦ LIBER ✦
Effects of adsorbate islanding on reaction kinetics and thermal desorption spectra: a monte carlo-quasichemical model
✍ Scribed by Marvin Silverberg; Avinoam Ben-Shaul
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 564 KB
- Volume
- 134
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The role of adsorbate lateral interactions in surface reaction kinetics is studied for bimolecular reactions A+ B-+AB.One reactant (A) tends to aggregate into islands, B is mobile and AB is a rapidly desorbing product. A model combining Monte Carlo dynamics for the slow processes (A-aggregation and AB-formation) and an appropriately modified quasichemical approximation for the fast ones (B-redistribution) is used to calculate reaction rates. Reaction desorption spectra and activation energies are calculated for different initial conditions and adsorbate lateral interactions.