Effects of High Temperature Water Steaming on the Active Centers of ZnHZSM-5
文献类型：期刊论文
| 作者 | Cheng Mojie; Yang Yashu |
| 刊名 | acta physico-chimica sinica
 |
| 出版日期 | 1996 |
| 卷号 | 12期号:8页码:721-726 |
| 关键词 | ZnHZSM-5 Water steaming Propane Active centers Dealumination |
| 英文摘要 | the effects of high temperature water steaming (htws) on the structure of hzsm-5 and znhzsm-5 catalysts have been investigated using xrd, xps and ir spectrum of adsorbed pyridine, and the aromatization of propane has been tested as a probe reaction to show the change of catalytic performance. the result indicate that the treatment of htws nearly has no significant effect on the crystallinity of zeolite catalysts, but it lead to the dealumination of zeolite framework and the migration of zinc ions departing from the cation positions and results in the enrichment of aluminum and zinc content on the outer surface of zeolite crystallites and the decrease of catalyst acidity, and comparing the variation of si/al with zn/si and zn/al, it is shown that the framework aluminum species with zinc counterions are more difficult to detach from the framework than those with proton counterions. the variation of the reaction activity and selectivity of propane aromatization also verifies that the active centers of b and zn-l acids are diminished differently depending on the treatment of htws processing. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000207600100010 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142776]  |
| 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 | Acad Sinica, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng Mojie,Yang Yashu. Effects of High Temperature Water Steaming on the Active Centers of ZnHZSM-5[J]. acta physico-chimica sinica,1996,12(8):721-726. |
| APA | Cheng Mojie,&Yang Yashu.(1996).Effects of High Temperature Water Steaming on the Active Centers of ZnHZSM-5.acta physico-chimica sinica,12(8),721-726. |
| MLA | Cheng Mojie,et al."Effects of High Temperature Water Steaming on the Active Centers of ZnHZSM-5".acta physico-chimica sinica 12.8(1996):721-726. |
入库方式： OAI收割
来源：大连化学物理研究所
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