Abstract
Infrared chemiluminescence has been applied to obtain information on the dynamics of steady-state CO oxidation over well-defined Pd(110) and Pd(111). The dynamics of the CO oxidation is structure sensitive, i.e., the internal energy states (vibration and rotation) of the product CO 2 depend on the surface structure of the reaction sites. Furthermore, the effect of exposures of Pd(110) to high-pressure O 2 (10 −2 Torr) on the internal energy states of the CO 2 was investigated, but the dynamics of CO 2 formation appeared to be the same between clean and oxidized Pd(110) surfaces.
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