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Elucidation of CO2 Formation Mechanism in CO + NO Reaction on Pd(111) and Pd(110) Surfaces Using IR Chemiluminescence Method |
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| Authors: | Kenji Nakao Hidetaka Hayashi Hiroshi Uetsuka Shin-ichi Ito Hiroshi Onishi Keiichi Tomishige Kimio Kunimori |
| Affiliation: | (1) Institute of Materials Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan;(2) Surface Chemistry Laboratory, Kanagawa Academy of Science and Technology, KSP E-404, Takatsu-ku, Kawasaki, Kanagawa, 213-0012, Japan |
| Abstract: | The infrared (IR) chemiluminescence technique was applied to steady-state CO oxidation by NO on Pd(111) and Pd(110). From a comparison of IR emission spectra of CO2 between the CO + NO and CO + O2 reactions, it was found that the vibrational energy states of CO2 in the CO + NO reaction were similar to those in the CO + O2 reaction. This indicates that the reaction path of CO2 formation in CO + NO is the same as that in CO + O2, although the vibrational states are very dependent on the surface structure. |
| Keywords: | mechanism steady state carbon dioxide carbon monoxide nitric oxide chemiluminescence palladium |
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