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Citation: ZHANG Xiao-Li, YANG Chun-Yan, LI Min-Yan, WANG Xiang-Yu, ZHENG Xiu-Cheng. Preparation and Property of W-MCM-41 Mesoporous Catalysts in an Open System[J]. Chinese Journal of Applied Chemistry, ;2010, 27(6): 695-699. doi: 10.3724/SP.J.1095.2010.90558 shu

Preparation and Property of W-MCM-41 Mesoporous Catalysts in an Open System

Department of Chemistry, Zhengzhou University, Zhengzhou 450052

Received Date: 26 August 2009
Revised Date: 12 November 2009

W-MCM-41 mesoporous catalysts were successfully synthesized in an open system with tetraethyl orthosilicate(TEOS) as silica precursor,sodium tungstate as tungsten precursor,and cetyltrimethylammonium bromide(CTAB) as structure-directing reagent.The samples were characterized by means of various techniques and their catalytic properties for the oxidation of cyclohexene were studied.The effects of Si/W molar ratios on the structure and catalytic properties were investigated in details.The results show that the prepared samples retained the ordered mesoporous structure of MCM-41 and exhibited high catalytic properties.The sample synthesized with n(Si)/n(W)=30 exhibited better catalytic property than others.
- open synthesis system,
- W-MCM-41,
- Si/W molar ratio,
- structure characterization,
- cyclohexene oxidation
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