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题名: Preferential occupation of molybdenum on the thin alumina film: Characterization by CO titration
作者: Jiang, Zhiquan1, 2, 3;  Huang, Weixin2, 3;  Zhao, Hong1;  Zhang, Zhen1;  Tan, Dali1;  Bao, Xinhe1
通讯作者: 包信和
关键词: preferential occupation ;  molybdenum ;  alumina ;  thermal desorption spectroscopy
刊名: CATALYSIS TODAY
发表日期: 2008-02-29
DOI: 10.1016/j.cattod.2007.10.063
卷: 131, 期:1-4, 页:28-34
收录类别: SCI ;  ISTP
文章类型: Article
部门归属: 5
项目归属: 502
产权排名: 1;1
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
英文摘要: A thin alumina film, the alumina model surfaces modified by the metallic molybdenum and by the MoO(3) are titrated by CO chemisorption. Two types of CO adsorption sites, namely octahedrally and tetrahedrally coordinated Al(3+) Sites, are present on the thin alumina film. The thin alumina film prepared under UHV conditions can be used to simulate the conventional high-surface-area alumina supports in real catalysis. The deposited metallic molybdenum preferentially occupies octahedrally coordinated Al(3+) site and suppresses CO chemisorption on this site, and oxidation of the surface molybdenum species enhances this suppression. (c) 2007 Published by Elsevier B.V.
关键词[WOS]: TEMPERATURE-PROGRAMMED DESORPTION ;  INFRARED-SPECTROSCOPY ;  ACID SITES ;  THERMAL-DECOMPOSITION ;  METHANE AROMATIZATION ;  MO/HMCM-22 CATALYSTS ;  CROSS-POLARIZATION ;  ULTRAHIGH-VACUUM ;  OXIDE SURFACES ;  ZEOLITE MCM-22
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000253382100005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100609
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Sci & Technol China, Max Planck Gesell, Fritz Haber Inst, MPG CAS Part Grp,Hefei Natl Lab Phys Sci Microsc, Hefei 230026, Peoples R China
3.Univ Sci & Technol China, Max Planck Gesell, Fritz Haber Inst, Max Planck Gesell CAS Partner Grp,Dept Chem Phys, Hefei 230026, Peoples R China

Recommended Citation:
Jiang, Zhiquan,Huang, Weixin,Zhao, Hong,et al. Preferential occupation of molybdenum on the thin alumina film: Characterization by CO titration[J]. CATALYSIS TODAY,2008,131(1-4):28-34.
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