A facile and effective method for the distribution of Mo/HZSM-5 catalyst active centers
文献类型：期刊论文
| 作者 | Wang, HX; Hu, G; Lei, H; Xu, YD; Bao, XH |
| 刊名 | catalysis letters
 |
| 出版日期 | 2003-07-01 |
| 卷号 | 89期号:1-2页码:75-79 |
| 关键词 | methane dehydro-aromatization Mo/HZSM-5 post-steaming treatment Bronsted acid sites |
| 产权排序 | 1;1 |
| 英文摘要 | post-steaming treatment of mo/hzsm-5 catalysts results in more molybdenum species migrating into and residing in the hzsm-5 zeolite channels. this is confirmed by xrf and xps measurements. h-1 mas nmr and si-29 mas nmr also demonstrate that the number of free bronsted acid sites decreases in the mo/hzsm-5 catalysts that underwent post-steaming treatment, compared to untreated mo/hzsm-5 catalysts. as a result, the deactivation rate constant (kd) on the mo/hzsm-5 catalyst after post-steaming treatment for 0.5 h is much smaller, and the catalyst therefore shows remarkable stability in the probe reaction of methane dehydro-aromatization. the results suggest that a more beneficial bi-functional balance between active mo species for methane activation and acid sites for the following aromatization is developed over those mo/hzsm-5 catalysts that have experienced post-steaming treatment for 0.5 h, in comparison with the untreated mo/hzsm-5 catalysts. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | methane dehydro-aromatization ; acid sites ; nonoxidative conditions ; zeolite ; mo ; mo/h-zsm5 ; epr |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000184187500012 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/82873]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, HX,Hu, G,Lei, H,et al. A facile and effective method for the distribution of Mo/HZSM-5 catalyst active centers[J]. catalysis letters,2003,89(1-2):75-79. |
| APA | Wang, HX,Hu, G,Lei, H,Xu, YD,&Bao, XH.(2003).A facile and effective method for the distribution of Mo/HZSM-5 catalyst active centers.catalysis letters,89(1-2),75-79. |
| MLA | Wang, HX,et al."A facile and effective method for the distribution of Mo/HZSM-5 catalyst active centers".catalysis letters 89.1-2(2003):75-79. |
入库方式： OAI收割
来源：大连化学物理研究所
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