MCM-48孔道键连Ti-复合物的表征及催化性能

CHARACTERIZATION AND CATALYTIC PERFORMANCE OF MCM-48 BINDING WITH Ti-COMPLEXES

通过化学键连法将两种Ti-复合物固载在MCM-48的孔道中，采用XRD、FT-IR对其结构进行了表征，同时以烯丙醇环氧化为探针反应考察了其催化性能。结果表明，键连Ti-复合物后，MCM-48骨架Si-O四面体发生畸变，但未引起骨架破坏；烯丙醇环氧化反应进一步显示其具有一定的催化活性，且活性中心较稳定。

Two Ti-complexes were bound into the channel of MCM-48 successfully. The characterization results of XRD and FT-IR show that the bound Ti-complexes can＇t destroy the framework of MCM-48 while they can lead to the distortion of Si--O tetrahedron in framework. These materials show definite catalytic activity on the epoxidation of allyl alcohols and the active sites have a good stability in this reaction system.