文献类型：期刊文献

英文题名：Effect of crystallization mode of hydrous zirconia support on the isomerization activity of Pt/WO3-ZrO2

作者：Song, Yueqin[1]; Zhang, Juanjuan[1]; Zhang, Yifei[1]; Zhou, Xiaolong[1]; Wang, Jin-An[2]; Xu, Longya[3]

机构：[1] Petroleum Processing Research Center, East China University of Science and Technology, No. 130, Meilong Road, Shanghai 200237, China; [2] Laboratorio de Catálisis y Materiales, ESIQIE, Instituto Politécnico Nacional, Col. Zacatenco, 07738 México, D.F., Mexico; [3] State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China

年份：2011

卷号：166

期号：1

起止页码：79

外文期刊名：Catalysis Today

收录：EI(收录号：20112013985981)

语种：英文

外文关键词：Catalyst activity - Hexane - Crystalline materials - Zirconia - Isomers - Platinum

摘要：A series of crystalline hydrous zirconia supports were prepared by different methods. The effects of preparation method of crystalline hydrous zirconia on its crystallization mode and the catalytic activity of Pt/WO 3-ZrO2 in n-hexane isomerization were studied. The catalysts were characterized by XRD and Raman spectroscopy, H2-TPR and NH3-TPD in order to investigate the crystalline structure, reduction properties and acidity of the catalyst. The results indicated that the crystallization mode of hydrous zirconia from different preparation methods was closely related to the ambience of the process, which significantly influenced the isomerization activity of Pt/WO3-ZrO2. The crystallization occurring at the surface region of the hydrous zirconia particles led to an inactive Pt/WO3-ZrO2, while the crystallization occurring only inside hydrous zirconia particles led to a catalyst with high activity. ? 2010 Elsevier B.V. All rights reserved.