Influence of the Preparation Processes on the Structure and Catalytic Properties of W-MCM-41 Mesoporous Materials

Abstract

W-MCM-41 mesoporous material was prepared with the open system process, acid-hydrothermal process, and alkali-hydrothermal process, respectively. The samples were characterized by using various techniques. The influence of the different preparation methods on the structure and catalytic properties in the oxidation of cyclohexene was comparatively investigated in details. The results showed that all the samples exhibited good catalytic properties and the one prepared with alkali-hydrothermal method displayed the best mesoporous structure.

Keywords:

• Cyclohexene oxidation
• preparation methods
• structure characterization
• W-MCM-41

Acknowledgments

The authors are grateful to the financial support of the Innovation Experiment Fund of Zhengzhou University (No. 2007CXSY045).

Notes

^a From BJH pore size distribution.

^b Calculated by subtracting the mean pore size from in the calculation of the thickness of the wall.