| Autor: |
Brown, L. S., Sibener, S. J. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 7/15/1988, Vol. 89 Issue 2, p1163, 7p |
| Abstrakt: |
The catalytic oxidation of carbon monoxide on a Rh(111) surface has been investigated using modulated molecular beam techniques. Reaction proceeds via a Langmuir–Hinshelwood mechanism. Under experimental conditions which provide a high coverage of oxygen adatoms and near zero coverage of adsorbed CO, an activation energy of 24.5±0.4 kcal/mol and a preexponential factor of 2±1×10-3 cm2 s-1 were obtained. The angular distribution of the product CO2 is sharply peaked toward the surface normal, and cannot be described by a simple cosnθ expression. Present results are discussed in relation to previous work on platinum and palladium surfaces. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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