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Spatial distributions of desorbing products in steady-state NO and N2O reductions on Pd(110)

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Title: Spatial distributions of desorbing products in steady-state NO and N2O reductions on Pd(110)
Authors: Ma, Yunsheng Browse this author
Matsushima, Tatsuo Browse this author →KAKEN DB
Shobatake, Kosuke Browse this author
Kokalj, Anton Browse this author
Issue Date: 14-Apr-2006
Publisher: American Institute of Physics
Journal Title: The Journal of Chemical Physics
Volume: 124
Issue: 14
Start Page: 144711
Publisher DOI: 10.1063/1.2189855
PMID: 16626235
Abstract: The angular and velocity distributions of desorbing product N2 were examined over the crystal azimuth in steady-state NO+CO and N2O+CO reactions on Pd(110) by cross-correlation time-of-flight techniques. At surface temperatures below 600 K, N2 desorption in both reactions splits into two directional lobes collimated along 41°–45° from the surface normal toward the [001] and [00[overline 1]] directions. Above 600 K, the normally directed N2 desorption is enhanced in the NO reduction. Each product desorption component, as well as CO2, shows a fairly asymmetric distribution about its collimation axis. Two factors, i.e., the anisotropic site structures and the reactant orientation and movements, are operative to induce such asymmetry, depending on the product emission mechanism.
Rights: Copyright © 2006 American Institute of Physics.
Type: article
URI: http://hdl.handle.net/2115/8410
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松島 龍夫

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