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题名: WO3 microcrystallites: One of the crucial factors controlling the isomerization activity of Pt/WO3-ZrO2
作者: Song, Yueqin1;  Zhang, Juanjuan1;  Zhou, Xiaolong1;  Wang, Jin-An2;  Xu, Longya3;  Yu, Guoxian4
关键词: Hydrothermal ;  Hydrous zirconia ;  Platinum ;  Tungstated zirconia ;  n-Hexane ;  Isomerization
刊名: CATALYSIS TODAY
发表日期: 2011-05-30
DOI: 10.1016/j.cattod.2010.05.037
卷: 166, 期:1, 页:67-72
收录类别: SCI
文章类型: Article
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 series of hydrous zirconia supports were prepared by hydrothermal method and Pt/WO3-ZrO2 catalysts were prepared by impregnation method. The catalytic activity of Pt/WO3-ZrO2 in n-hexane isomerization was evaluated in a fixed-bed reactor. In order to investigate the crystalline structure, acidity, and textural properties, the catalysts were characterized by XRD and Raman spectroscopy, NH3-TPD, FTIR, and N-2 adsorption. The results indicated that the crystalline structure of hydrous zirconia support and the state of tungsten oxide species over the catalyst varied obviously with the hydrothermal temperature, while no distinct change in the acidity of the catalyst occurred. The isomerization activity of Pt/WO3-ZrO2 could not well be correlated with the crystalline structure of hydrous zirconia support and the acidity. It was proposed that the presence of considerable microcrystalline WO3 in catalyst was indispensable for achieving high isomerization activity. (C) 2010 Elsevier B. V. All rights reserved.
关键词[WOS]: TUNGSTATED ZIRCONIA CATALYSTS ;  N-BUTANE ISOMERIZATION ;  PLATINUM ;  CONVERSION ;  WOX-ZRO2
语种: 英语
WOS记录号: WOS:000290516500010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142685
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.E China Univ Sci & Technol, Petr Proc Res Ctr, Shanghai 200237, Peoples R China
2.Inst Politecn Nacl, ESIQIE, Lab Catalisis & Mat, Mexico City 07738, DF, Mexico
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
4.Jianghan Univ, Sch Chem & Environm Engn, Wuhan 430056, Hubei Province, Peoples R China

Recommended Citation:
Song, Yueqin,Zhang, Juanjuan,Zhou, Xiaolong,et al. WO3 microcrystallites: One of the crucial factors controlling the isomerization activity of Pt/WO3-ZrO2[J]. CATALYSIS TODAY,2011,166(1):67-72.
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