Preparation and Property of W-MCM41 Mesoporous Catalysts in an Open System
TL;DRAbstract
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 structuredirecting 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.
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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 structuredirecting 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.
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