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题名: The preparation of active WO3 catalysts for metathesis between ethene and 2-butene under moist atmosphere
作者: Liu, Huijuan1, 2;  Huang, Shengjun1;  Zhang, Ling1, 2;  Liu, Shenglin1;  Xin, Wenjie1;  Xu, Longya1
通讯作者: 徐龙伢
关键词: Metathesis ;  Propene ;  WO3 ;  Moist atmosphere ;  HY/Al2O3 support
刊名: CATALYSIS COMMUNICATIONS
发表日期: 2009-01-25
DOI: 10.1016/j.catcom.2008.10.030
卷: 10, 期:5, 页:544-548
收录类别: SCI
文章类型: Article
部门归属: 8
项目归属: 804
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: Moist atmosphere was employed for the preparation of WO3/Al2O3/HY catalysts (under thermal spread condition) for the metathesis between ethene and 2-butene to propene. The transformation of tungsten oxide species was characterized by XRD, UV-Vis spectra and UV resonance Raman techniques. Compared with the 18 h calcination time under commonly dry atmosphere at 600 degrees C, moist atmosphere accelerates the transformation of bulk WO3 to surface oxide, and shortens the calcination time to 4 h for highly active catalyst, which also shows better stability for the metathesis reaction at 0.1 MPa and 180 degrees C. The HY/Al2O3 binary support still displays the synergetic effect for the formation of active site precursors of tetrahedral tungsten oxide species, which exhibit a characteristic Raman band at similar to 970 cm(-1). (C) 2008 Elsevier B.V. All rights reserved.
关键词[WOS]: ALUMINA ;  SPECTROSCOPY ;  ELECTRON ;  OXIDES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000263864900027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101507
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, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Liu, Huijuan,Huang, Shengjun,Zhang, Ling,et al. The preparation of active WO3 catalysts for metathesis between ethene and 2-butene under moist atmosphere[J]. CATALYSIS COMMUNICATIONS,2009,10(5):544-548.
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