Mechanistic study of selective oxidation of dimethyl ether to formaldehyde over alumina-supported molybdenum oxide catalyst
文献类型：期刊论文
| 作者 | Huang, XM; Liu, JL; Chen, JL; Xu, YD; Shen, WJ |
| 刊名 | catalysis letters
 |
| 出版日期 | 2006-04-01 |
| 卷号 | 108期号:1-2页码:79-86 |
| 关键词 | dimethyl ether formaldehyde XPS IR MoO3/gamma-Al(2)O3 |
| 产权排序 | 1;1 |
| 通讯作者 | 申文杰 |
| 英文摘要 | xps and ir spectroscopies were used to investigate the surface intermediates of dimethyl ether (dme) oxidation to formaldehyde over moox/al2o3 catalyst. the reaction performances were tested by employing three typical reaction conditions, depending on the o-2/dme ratio and the reaction temperature. when there was sufficient oxygen present in the reaction media, a terminal or bridged ch3o* species formed by dme dissociation was highly active and rapidly reacted with lattice oxygen to produce formaldehyde, leading to higher selectivity of hcho. when oxygen was consumed completely or only dme was present in the reaction media, ch3o species bonded to more than two mo atoms (mu-och3) and chx (x=1-3) species attached to the mo atoms were observed and the relative ratio of (mu-och3) /mo-chx was significantly dependent on the reduction degree of moox domains. the (mu-ch3o) species was related to the formation of ch3oh or cox, and the mo-chx species led to the formation of ch4. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | methanol oxidation ; redox properties ; active-sites ; xps ; moox ; spectroscopy ; adsorption ; dispersion ; kinetics ; domains |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000236368700014 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/93769]  |
| 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 | Huang, XM,Liu, JL,Chen, JL,et al. Mechanistic study of selective oxidation of dimethyl ether to formaldehyde over alumina-supported molybdenum oxide catalyst[J]. catalysis letters,2006,108(1-2):79-86. |
| APA | Huang, XM,Liu, JL,Chen, JL,Xu, YD,&Shen, WJ.(2006).Mechanistic study of selective oxidation of dimethyl ether to formaldehyde over alumina-supported molybdenum oxide catalyst.catalysis letters,108(1-2),79-86. |
| MLA | Huang, XM,et al."Mechanistic study of selective oxidation of dimethyl ether to formaldehyde over alumina-supported molybdenum oxide catalyst".catalysis letters 108.1-2(2006):79-86. |
入库方式： OAI收割
来源：大连化学物理研究所
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