Dehydroaromatization of methane over Mo/HZSM-5 pretreated with NH4F: Further study on effect of pretreatment temperature
文献类型：期刊论文
| 作者 | Li, YG; Huang, XM; Liu, L; Liu, XM; Shen, WJ; Bao, XH; Xu, YD |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2006-02-01 |
| 卷号 | 27期号:2页码:166-170 |
| 关键词 | methane aromatization ammonium fluoride HZSM-5 molybdenum oxide supported catalyst carbonaceous deposit |
| 英文摘要 | mo/hzsm-5 was prepared from hzsm-5 zeolite that was pretreated with nh4f at different temperatures. the results of al-27 magic angle spinning (mas) nmr show that the pretreatment with nh4f at 623 k causes serious dealumination on hzsm-5, forming a new wide peak at around delta = - 12.7, which is attributed to alo6-xfx species. an enhanced interaction between moo3 and hzsm-5 is confirmed by nh3 temperature-programmed desorption and al-27 mas nmr characterization for mo/hzsm-5 samples, and this interaction becomes more obvious when the pretreatment was carried out at a higher temperature. the coked mo/hzsm-5 samples prepared with nh4f-pretreated hzsm-5 were characterized by thermogravimetry and temperature-programmed oxidation, and the results show that the nh4f pretreatment improves the catalyst resistance to the coke formation. this is related not only to the decrease in bronsted acid sites on mo/hzsm-5, but also to the compatibility of the amounts of bronsted acid sites and the active molybdenum species. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | single-pass conversion ; nonoxidative conditions ; dehydro-aromatization ; catalytic-properties ; hzsm-5 zeolite ; acidity |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235990300016 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140157]  |
| 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 | Li, YG,Huang, XM,Liu, L,et al. Dehydroaromatization of methane over Mo/HZSM-5 pretreated with NH4F: Further study on effect of pretreatment temperature[J]. chinese journal of catalysis,2006,27(2):166-170. |
| APA | Li, YG.,Huang, XM.,Liu, L.,Liu, XM.,Shen, WJ.,...&Xu, YD.(2006).Dehydroaromatization of methane over Mo/HZSM-5 pretreated with NH4F: Further study on effect of pretreatment temperature.chinese journal of catalysis,27(2),166-170. |
| MLA | Li, YG,et al."Dehydroaromatization of methane over Mo/HZSM-5 pretreated with NH4F: Further study on effect of pretreatment temperature".chinese journal of catalysis 27.2(2006):166-170. |
入库方式： OAI收割
来源：大连化学物理研究所
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