EXAFS study of gamma-Mo2N and Mo nitrides supported on zeolites
文献类型：期刊论文
| 作者 | Liu, ZL; Meng, M ; Fu, YL; Jiang, M; Hu, TD; Xie, YN; Liu, T; Hu TD(胡天斗); Xie YN(谢亚宁); Liu T(刘涛)
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| 刊名 | MATERIALS LETTERS
 |
| 出版日期 | 2002 |
| 卷号 | 54期号:5-6页码:364-371 |
| 关键词 | zeolite supports molybdenum nitride catalysts EXAFS (X-ray absorption fine structure) structure |
| 通讯作者 | Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China ; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China |
| 英文摘要 | By analysis of the extended X-ray absorption fine structure (EXAFS) of the Mo K-absorption edge, the structural information of both oxidic and nitrided Mo catalysts supported on zeolites was obtained. The supported MoO3 samples show three peaks in the radial structure function (RSF). The first two peaks represent the nearest Mo-O coordination shell and the ratio of the first peak to the second one is much larger than that of the MoO3 crystallites, which suggests that the MoO3 supported on zeolites has a compact structure than the unsupported one. Three peaks on the RSF Of gamma-Mo2N represent one Mo-N and two Mo-Mo coordination shells, respectively. This is in good agreement with the face-centered cubic model. Calculation from X-ray diffraction data and EXAFS spectra reveals that the N atoms in gamma-Mo2N lengthen the distance between Mo atoms and weaken the Mo-Mo bond. Supported Mo2N samples give out nearly the same RSFs as the gamma-Mo2N and only the peak corresponding to Mo-N shell is weak. This suggests the supported Mo2N has more configurational disorder. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 学科主题 | Materials Science; Physics |
| 类目[WOS] | Materials Science, Multidisciplinary ; Physics, Applied |
| 研究领域[WOS] | Materials Science ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000175966100007 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/237177]  |
| 专题 | 中国科学院高能物理研究所_中国散裂中子源 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Liu, ZL,Meng, M,Fu, YL,et al. EXAFS study of gamma-Mo2N and Mo nitrides supported on zeolites[J]. MATERIALS LETTERS,2002,54(5-6):364-371. |
| APA | Liu, ZL.,Meng, M.,Fu, YL.,Jiang, M.,Hu, TD.,...&刘涛.(2002).EXAFS study of gamma-Mo2N and Mo nitrides supported on zeolites.MATERIALS LETTERS,54(5-6),364-371. |
| MLA | Liu, ZL,et al."EXAFS study of gamma-Mo2N and Mo nitrides supported on zeolites".MATERIALS LETTERS 54.5-6(2002):364-371. |
入库方式： OAI收割
来源：高能物理研究所
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