文献类型：期刊文献

英文题名：n-Hexane Isomerization by Pt/WO₃-ZrO₂ Using Hydrothermally Synthesized Hydrous Zirconia as Support

作者：Song Yueqin[1];Kang Chenglin[1];Feng Yanlong[1];Liu Feng[1];Zhou Xiaolong[1];Dong Renyao[1];Xu Longya[2]

机构：[1]E China Univ Sci & Technol, Petr Proc Res Ctr, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

年份：2008

卷号：29

期号：12

起止页码：1196

外文期刊名：CHINESE JOURNAL OF CATALYSIS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000262385100002)】；

语种：英文

外文关键词：hydrothermal synthesis; hydrous zirconia; tungsten oxide; platinum; n-hexane; isomerization

摘要：A series of hydrous zirconia samples were prepared by the hydrothermal method, and the Pt/WO3-ZrO2 catalyst was prepared by impregnation. The effects of hydrothermal temperature of Zr(OH)(4) on the isomerization activity of the catalyst was investigated. The crystalline structure, acidity, and reduction properties of the catalyst were characterized by X-ray diffraction. NH3 temperature-programmed desorption, and H-2 temperature-programmed reduction, respectively. The results indicated that the crystalline structure of hydrous zirconia and the catalyst varied with the hydrothermal temperature, and the increase of hydrothermal temperature reduced the fraction of tetragonal zirconia. Strong acide sites on the catalyst and the isomerization activity increased with the crystallization of Zr(OH)(4). It was proposed that the higher isomerization activity may be related to the existence of large numbers of strong acid sites.