|
Hokkaido University Collection of Scholarly and Academic Papers >
Institute for Catalysis >
Peer-reviewed Journal Articles, etc >
Surface-nitrogen removal in NO reduction on Pd(1 1 0) and its retardation by oxygen: Angle-resolved desorption studies
| Title: | Surface-nitrogen removal in NO reduction on Pd(1 1 0) and its retardation by oxygen: Angle-resolved desorption studies |
| Authors: | Ma, Yunsheng Browse this author | | Matsushima, Tatsuo Browse this author →KAKEN DB |
| Keywords: | Nitrogen oxide | | Nitrous oxide | | Palladium | | Single crystal surfaces | | Reduction | | Desorption |
| Issue Date: | 30-Sep-2006 |
| Publisher: | Elsevier B.V. |
| Journal Title: | Catalysis Today |
| Volume: | 117 |
| Issue: | 1-3 |
| Start Page: | 90 |
| End Page: | 97 |
| Publisher DOI: | 10.1016/j.cattod.2006.05.004 |
| Abstract: | An oxygen retarding effect toward surface-nitrogen removal processes was studied in the course of the catalyzed NO reduction on Pd(1 1 0) by angle-resolved product desorption analysis combined with cross-correlation time-of-flight techniques. Three surface-nitrogen removal processes, i.e., (i) 2N(a) → N2(g), (ii) N(a) + NO(a) → N2O(a) → N2(g) + O(a) and (iii) N2O(a) → N2O(g) are operative when CO is a counter-reducing reagent. Process (i) becomes predominant above ca. 600 K and is most sensitively retarded by O(a). Below ca. 550 K, processes (ii) and (iii) remove most of the surface nitrogen. By addition of O(a), process (iii) is enhanced once, suggesting an increase in the amount of the intermediate N2O(a), whereas its decomposition in process (ii) is more quickly retarded. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/14629 |
| 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
|
