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Anisotropic velocity distribution of desorbing product in carbon monoxide oxidation on palladium (110)
| Title: | Anisotropic velocity distribution of desorbing product in carbon monoxide oxidation on palladium (110) |
| Authors: | Matsushima, Tatsuo1 Browse this author →KAKEN DB | | Shobatake, Kosuke Browse this author | | Ohno, Yuichi Browse this author | | Tabayashi, Kiyohiko Browse this author |
| Authors(alt): | 松島, 龍夫1 |
| Issue Date: | Aug-1992 |
| Publisher: | American Institute of Physics |
| Journal Title: | The Journal of Chemical Physics -- |
| Volume: | 97 |
| Issue: | 4 |
| Start Page: | 2783 |
| End Page: | 2789 |
| Publisher DOI: | 10.1063/1.463070 |
| Abstract: | Significant anisotropy was found in the velocity distributions of desorbing product CO2 from a Pd(110) surface. The velocity distributions were determined by a cross-correlation time-of-flight technique combined with angle-resolved thermal desorption. Heating the coadlayer of CO and oxygen produces five peaks in the CO2 formation spectrum; P1– (around 420 K), P2– (~370 K), P3– (~300 K), P4– (~230 K), and P5–CO2 (~170 K). The translational temperature of each CO2 is much higher than the corresponding surface temperature, and increases in the sequence of P1– <P2– <P3– <P4– <P5–CO2. It decreases rapidly with an increase in the desorption angle perpendicular to the surface trough and more slowly parallel to it. This anisotropy is correlated to the reaction site symmetry. |
| Rights: | Copyright © 1992 American Institute of Physics |
| Relation: | http://www.aip.org/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/5516 |
| 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)
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Submitter: 松島 龍夫
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