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题名: Effect of the properties of hydrous zirconia prepared under various hydrothermal conditions on the isomerization activity of Pt/WO3-ZrO2
作者: Song, Y. Q.1;  Kang, C. L.1;  Feng, Y. L.1;  Liu, F.1;  Zhou, X. L.1;  Wang, J. A.2;  Xu, L. Y.3
关键词: Hydrous zirconia ;  Hydrothermal treatment ;  Pt/WO3-ZrO2 ;  n-Hexane ;  Isomerization
刊名: CATALYSIS TODAY
发表日期: 2009-10-30
DOI: 10.1016/j.cattod.2009.02.044
卷: 148, 期:1-2, 页:63-69
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 samples were prepared by hydrothermal method and the effects of the properties of hydrous zirconia on the catalytic activity of Pt/WO3-ZrO2 in the hexane isomerization were investigated. The catalysts were characterized by X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and differential thermal analysis (TDA), H-2-temperature programmed reduction (H-2-TPR) and NH3-temperature programmed desorption (NH3-TPD). The results showed that the hydrothermal treatment under different times and pH values led to remarkable changes in the properties (such as hydroxyl group, ordering degree and thermal stability) of hydrous zirconia. Moreover, the isomerization activity Of Pt/WO3-ZrO2 varied distinctly with the hydrothermal treatment condition of hydrous zirconia. The correlation between the properties of hydrous zirconia and the isomerization activity of the catalyst was primarily established. It was proposed that the isomerization activity was strongly dependent on the stability and ordering degree of hydrous zirconia, while it was irrelevant to the amount of hydroxyl groups in hydrous zirconia. (C) 2009 Elsevier B.V. All rights reserved.
关键词[WOS]: N-BUTANE ISOMERIZATION ;  SURFACE-AREA ZIRCONIA ;  CATALYTIC-ACTIVITY ;  SULFATE PROMOTION ;  TUNGSTEN-OXIDE ;  TEMPERATURE ;  DISPERSION ;  WOX/ZRO2 ;  GEL ;  PH
语种: 英语
WOS记录号: WOS:000271830100011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141241
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, Sch Chem Engn, Res Inst Petr Proc, 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

Recommended Citation:
Song, Y. Q.,Kang, C. L.,Feng, Y. L.,et al. Effect of the properties of hydrous zirconia prepared under various hydrothermal conditions on the isomerization activity of Pt/WO3-ZrO2[J]. CATALYSIS TODAY,2009,148(1-2):63-69.
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