INTERACTION BETWEEN AMMONIUM HEPTAMOLYBDATE AND NH(4)ZSM-5 ZEOLITE - THE LOCATION OF MO SPECIES AND THE ACIDITY OF MO/HZSM-5
文献类型：期刊论文
| 作者 | XU, YD; SHU, YY; LIU, ST; HUANG, JS; GUO, XX |
| 刊名 | CATALYSIS LETTERS
 |
| 出版日期 | 1995 |
| 卷号 | 35期号:3-4页码:233-243 |
| 关键词 | Mo/hzsm-5 Nh(4)Zsm-5 Zeolite Bronsted Acid Sites Methane Activation |
| ISSN号 | 1011-372X |
| 文献子类 | Article |
| 英文摘要 | Mo/HZSM-5 catalysts show high reactivity and selectivity in the activation of methane without using oxidants. Mo/HZSM-5 catalysts with Mo loading ranging from 0 to 10% were prepared by impregnation with an aqueous solution of ammonium heptamolybdate (AHM). The samples were dried at 393 K, and then calcined at different temperatures for 4 h. The interaction between Mo species and NH(4)ZSM-5 zeolite was characterized by FT-IR spectroscopy, differential thermal analysis (DTA) and temperature programmed decomposition (TPDE) and NH3-TPD at different stages of catalyst preparation. The results showed that if Mo/HZSM-5 catalysts were calcined at a proper temperature, the Mo species will interact with acid sites (mainly with Bronsted acid sites) and part of the Mo species will move into the channel. The Mo species in the form of small MoO3 crystallites residing on the external surface and/or in the channel, and interacting with Bronsted acid sites may be responsible for the methane activation. Strong interaction between Mo species and the skeleton of HZSM-5 will occur if the catalyst is calcined at 973 K. This may lead to the formation of MoO42- species, which is detrimental to methane activation. |
| WOS关键词 | CATALYSTS ; METHANE |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:A1995TH73400004 |
| 出版者 | BALTZER SCI PUBL BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/167726]  |
| 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 |
| 通讯作者 | XU, YD |
| 推荐引用方式 GB/T 7714 | XU, YD,SHU, YY,LIU, ST,et al. INTERACTION BETWEEN AMMONIUM HEPTAMOLYBDATE AND NH(4)ZSM-5 ZEOLITE - THE LOCATION OF MO SPECIES AND THE ACIDITY OF MO/HZSM-5[J]. CATALYSIS LETTERS,1995,35(3-4):233-243. |
| APA | XU, YD,SHU, YY,LIU, ST,HUANG, JS,&GUO, XX.(1995).INTERACTION BETWEEN AMMONIUM HEPTAMOLYBDATE AND NH(4)ZSM-5 ZEOLITE - THE LOCATION OF MO SPECIES AND THE ACIDITY OF MO/HZSM-5.CATALYSIS LETTERS,35(3-4),233-243. |
| MLA | XU, YD,et al."INTERACTION BETWEEN AMMONIUM HEPTAMOLYBDATE AND NH(4)ZSM-5 ZEOLITE - THE LOCATION OF MO SPECIES AND THE ACIDITY OF MO/HZSM-5".CATALYSIS LETTERS 35.3-4(1995):233-243. |
入库方式： OAI收割
来源：大连化学物理研究所
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