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Angular distributions of desorbing N2 in thermal N2O decomposition on Rh(100)
| Title: | Angular distributions of desorbing N2 in thermal N2O decomposition on Rh(100) |
| Authors: | Matsushima, Tatsuo Browse this author →KAKEN DB | | Kokalj, Anton Browse this author |
| Keywords: | Thermal desorption | | Nitrous oxide | | Rhodium | | Surface chemical reaction | | Angle-resolved DIET | | Catalysis | | Density-functional theory calculations |
| Issue Date: | 15-Sep-2007 |
| Publisher: | Elsevier B.V. |
| Journal Title: | Surface Science |
| Volume: | 601 |
| Issue: | 18 |
| Start Page: | 3996 |
| End Page: | 4000 |
| Publisher DOI: | 10.1016/j.susc.2007.04.037 |
| Abstract: | The angular distribution of desorbing N2 was studied in the decomposition of N2O(a) on Rh(1 0 0) at 60–140 K by means of angle-resolved temperature-programmed desorption. N2 desorption shows two peaks at around 80 K and 110 K. At low N2O coverage, the former collimates far from the surface normal toward the [0 0 1] direction, whereas at high coverage, the desorption sharply collimates along the surface normal. The adsorption form of N2O and its dissociation were also examined by DFT-GGA calculations. Dissociating N2O is proposed to be lying along the [0 0 1] direction at low coverage and to change to an upright form bonding through the terminal oxygen at high coverage. |
| Relation: | http://www.sciencedirect.com/science/journal/00396028 |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/30275 |
| 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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