Abstract
The mechanism of carbon monoxide oxidation on oxygen covered Pt(111) surfaces during CO exposure was studied using time-resolved near edge x-ray absorption fine structure spectroscopy. A switching of reaction path in CO oxidation reaction was caused by the CO adsorption induced two dimensional condensation of O atoms. Monte Carlo simulations and in situ monitoring of reaction kinetics revealed that CO coadsorption played a role of inducing change in spatial distribution of O atoms. The results demonstrate that effects of long-range interactions and consequent dynamic spatial-distribution changes of the reactants are of importance for understanding the kinetics in the reaction systems deviated from the conventional Langmuir-Hinshelwood kinetics.
| Original language | English |
|---|---|
| Pages (from-to) | 5035-5038 |
| Number of pages | 4 |
| Journal | Journal of Chemical Physics |
| Volume | 121 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2004 Sept 15 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry
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