Preparation and structural characterization of highly dispersed gamma-Mo2N supported on alumina
文献类型：期刊论文
| 作者 | Meng, M ; Fu, YL; Liu, ZL; Jiang, M; Xie, YN; Hu, TD; 谢亚宁,胡天斗
|
| 刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
 |
| 出版日期 | 2002 |
| 卷号 | 23期号:6页码:1113-1116 |
| 关键词 | gamma-Mo2N/Al2O3 catalysts preparation structural characterization EXAFS |
| 通讯作者 | Univ Sci & Technol China, Dept Phys Chem, Hefei 230026, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China |
| 英文摘要 | The nitrided Mo/Al2O3 catalysts were prepared by temperature-programmed reaction between NH3 and MoO3/Al2O3. XRD and EXAFS methods were used for the structural characterization. The results of XRD show that the molybdenum species in the supported samples exist as a dispersed MoO3 phase before nitriding. After nitriding, most of the molybdenum species were nitrided to form gamma-Mo2N. The lower intensity of the radial structure functions of Mo K-edge and the smaller coordination number of Mo-N shells accordingly indicate that the gamma-Mo2N in the supported samples possesses a high dispersion, the lower the loading of Mo, the higher the dispersion of gamma-Mo2N on alumina. From the view of coordination distance, it is found that with the increase of dispersion of gamma-Mo2N, the Mo-N distance is a little shortened, which may be resulted from the nano-shortening phenomenum. The values of disorder factors show that the gamma-Mo2N phase in the supported samples has big thermal and structural disorder extent, and with the increase of its dispersion, both the thermal and structural disorder factors increase. |
| 学科主题 | Chemistry |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000176272300035 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239070]  |
| 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 | Meng, M,Fu, YL,Liu, ZL,et al. Preparation and structural characterization of highly dispersed gamma-Mo2N supported on alumina[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2002,23(6):1113-1116. |
| APA | Meng, M.,Fu, YL.,Liu, ZL.,Jiang, M.,Xie, YN.,...&谢亚宁,胡天斗.(2002).Preparation and structural characterization of highly dispersed gamma-Mo2N supported on alumina.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,23(6),1113-1116. |
| MLA | Meng, M,et al."Preparation and structural characterization of highly dispersed gamma-Mo2N supported on alumina".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 23.6(2002):1113-1116. |
入库方式： OAI收割
来源：高能物理研究所
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