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题名: The influence of preparation procedures and tungsten loading on the metathesis activity of ethene and 2-butene over supported WO3 catalysts
作者: Huang, Shengjun;  Chen, Fucun;  Liu, Shenglin;  Zhu, Qingjun;  Zhu, Xiangxue;  Xin, Wenjie;  Feng, Zaochi;  Li, Can;  Wang, Qingxia;  Xu, Longya
通讯作者: 徐龙伢
关键词: metathesis ;  WO3-Al2O3-HY catalysts ;  supported tungsten oxide species
刊名: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
发表日期: 2007-04-18
DOI: 10.1016/j.molcata.2006.11.048
卷: 267, 期:1-2, 页:224-233
收录类别: SCI
文章类型: Article
部门归属: 8,5
项目归属: 804,503
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: A series of catalysts composed of WO3, gamma-Al2O3 and HY were prepared to study the effects of preparation procedure and tungsten loading on their catalytic performances for the metathesis between ethene and 2-butene to propene. The catalysts are characterized by X-ray diffraction (XRD), temperature-programmed desorption of ammonia (NH3-TPD), temperature-programmed reduction of hydrogen (H-2-TPR), N-2 adsorption, UV-vis and UV resonance Raman techniques. The results reveal that the catalytic activity is determined by the structure of supported tungsten oxide species. Based on the correlation between the activity and structure of tungsten oxide species, the isolated tetrahedral oxide species are suggested to be the active sites precursors, which exhibit characteristic Raman band at 970 cm(-1). (c) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: RAMAN-SPECTROSCOPY ;  THIOPHENE HYDRODESULFURIZATION ;  W/HZSM-5 CATALYSTS ;  ZEOLITE CATALYSTS ;  PARTIAL OXIDATION ;  OXIDE ;  ALUMINA ;  ISOMERIZATION ;  WO3/AL2O3 ;  PROPENE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000245880900030
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98817
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

Recommended Citation:
Huang, Shengjun,Chen, Fucun,Liu, Shenglin,et al. The influence of preparation procedures and tungsten loading on the metathesis activity of ethene and 2-butene over supported WO3 catalysts[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2007,267(1-2):224-233.
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