On the reactivity of Mo species for methane partial oxidation on Mo/HMCM-22 catalysts
文献类型：期刊论文
| 作者 | Miao, SJ; Liu, L; Lian, YX; Zhu, XX; Zhou, ST; Wang, Y; Bao, XH |
| 刊名 | catalysis letters
 |
| 出版日期 | 2004-09-01 |
| 卷号 | 97期号:3-4页码:209-215 |
| 关键词 | methane partial oxidation formaldehyde Mo/HMCM-22 tetrahedral molybdate octahedral polyoxomolybdate |
| 产权排序 | 1;1 |
| 英文摘要 | by characterizing fresh and used mo/hmcm-22 catalysts with icp-aes, xrd, nh3-tpd technique, uv - vis drs and uv raman spectroscopy, the reactivity of mo species for methane partial oxidation into formaldehyde were directly studied with a new point of view. by comparing the fresh and used catalysts, it was found that the tetrahedral mo species bonding chemically to the support surface were practically unchanged after the reaction, while the polymolybdate octahedral mo species, which had a rather weak interaction with the mcm-22 zeolite, leached out during the reaction, especially when the mo loading was high. correspondingly, it was found from the time-on-stream reaction data that the hcho yield remained unchanged, while cox decreased with the reaction time during the reaction. by combining the characterization results and the reaction data, it can be drawn that the isolated tetrahedral molybdenum oxo-species (t-d) is responsible for hcho formation, while the octahedral polyoxomolybdate species (o-h) will lead to the total oxidation of methane. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | supported molybdenum oxide ; dehydro-aromatization ; mo/mcm-22 catalysts ; moo3/sio2 catalysts ; selective oxidation ; excess amount ; water-vapor ; formaldehyde ; silica ; alumina |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000223403000017 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/82083]  |
| 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 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Nat Gas Utilizat & Appl Catalysis Lab, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Miao, SJ,Liu, L,Lian, YX,et al. On the reactivity of Mo species for methane partial oxidation on Mo/HMCM-22 catalysts[J]. catalysis letters,2004,97(3-4):209-215. |
| APA | Miao, SJ.,Liu, L.,Lian, YX.,Zhu, XX.,Zhou, ST.,...&Bao, XH.(2004).On the reactivity of Mo species for methane partial oxidation on Mo/HMCM-22 catalysts.catalysis letters,97(3-4),209-215. |
| MLA | Miao, SJ,et al."On the reactivity of Mo species for methane partial oxidation on Mo/HMCM-22 catalysts".catalysis letters 97.3-4(2004):209-215. |
入库方式： OAI收割
来源：大连化学物理研究所
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