高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 241.

• Chemistry in Materials Sciences • 上一篇    下一篇

Characterizations and Catalytic Properties of V-MCM-41 Synthesized by Template-ion Exchange Method

WANG Ye, ZHANG Qing-Hong, TAKEHIRA Katsuomi   

  1. Department of Applied Chemistry, Faculty of Engineering, Hiroshima University, Kagamiyama, Higashi-hiroshima 739-8527, Japan
  • 出版日期:2000-12-31 发布日期:2000-12-31

Characterizations and Catalytic Properties of V-MCM-41 Synthesized by Template-ion Exchange Method

WANG Ye, ZHANG Qing-Hong, TAKEHIRA Katsuomi   

  1. Department of Applied Chemistry, Faculty of Engineering, Hiroshima University, Kagamiyama, Higashi-hiroshima 739-8527, Japan
  • Online:2000-12-31 Published:2000-12-31

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摘要：

Much attention has been paid to the use of the new mesoporous material, MCM-41,as catalyst or catalyst support[1,2]. Recently, we focus our study on the design of catalytically active sites such as vanadium species inside the mesopore of MCM-41. V-MCM-41 is generally synthesized by direct hydrothermal method in the literature, but a large part of vanadium sites seems difficult to be accessed during the catalytic reactions by this method. We have developed a novel method to introduce vanadium species by a template-ion exchange (TIE) method, i.e., by exchanging the template cation in the uncalcined MCM-41 with VO2+ ion in aqueous solution. Here, the results of the characterizations of such synthesized V-MCM-41 and its catalytic properties in oxidative dehydrogenation of propane are described.

Abstract:

Much attention has been paid to the use of the new mesoporous material, MCM-41,as catalyst or catalyst support[1,2]. Recently, we focus our study on the design of catalytically active sites such as vanadium species inside the mesopore of MCM-41. V-MCM-41 is generally synthesized by direct hydrothermal method in the literature, but a large part of vanadium sites seems difficult to be accessed during the catalytic reactions by this method. We have developed a novel method to introduce vanadium species by a template-ion exchange (TIE) method, i.e., by exchanging the template cation in the uncalcined MCM-41 with VO2+ ion in aqueous solution. Here, the results of the characterizations of such synthesized V-MCM-41 and its catalytic properties in oxidative dehydrogenation of propane are described.

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