Abstract
The mechanism of CO oxidation reaction on oxygen-precovered Pt(111) surfaces has been studied by using time-resolved near-edge x-ray absorption fine structure spectroscopy. The whole reaction process is composed of two distinct paths: (1) a reaction of isolated oxygen atoms with adsorbed CO, and (2) a reaction of island-periphery oxygen atoms after the CO saturation. CO coadsorption plays a role to induce the dynamic change in spatial distribution of O atoms, which switches over the two reaction paths. These mechanisms were confirmed by kinetic Monte Carlo simulations. The effect of coadsorbed water in the reaction mechanism was also examined.
| Original language | English |
|---|---|
| Article number | 134709 |
| Journal | Journal of Chemical Physics |
| Volume | 122 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2005 Sep 13 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
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Nakai, I., Kondoh, H., Amemiya, K., Nagasaka, M., Shimada, T., Yokota, R., Nambu, A., & Ohta, T. (2005). Mechanism of the CO oxidation reaction on O-precovered Pt(111) surfaces studied with near-edge x-ray absorption fine structure spectroscopy. Journal of Chemical Physics, 122(13), [134709]. https://doi.org/10.1063/1.1869415