Introduction of titanium into the frameworks of 14-ring extra-large-pore zeolites with CIT-5 (CFI-type, 7.2 × 7.5 Å) and SSZ-53 (SFH-type, 6.4 × 8.7 Å) topology has successfully been conducted by a chemical vapor deposition (CVD) method. The prepared titanosilicate zeolites have been characterized by XRD, SEM, UV–vis spectroscopy, IR spectroscopy, N₂ adsorption, and elemental analysis. According to the characterization data, titanium is mostly incorporated into the framework of the zeolite in a tetrahedrally coordinated state. The catalytic epoxidation of cycloalkenes with H₂O₂ and tert-butyl hydroperoxide (TBHP) has been measured. The prepared titanosilicates with extra-large pores show superior performances for bulky molecule oxidation using TBHP as an oxidant compared to medium-pore TS-1 and large-pore Ti-beta.

通过CIT-5（CFI型，7.2×7.5Å）和SSZ-53（SFH型，6.4×8.7Å）拓扑结构成功地将钛引入14环超大孔沸石的骨架中化学气相沉积（CVD）方法。制备的钛硅酸盐沸石已通过XRD，SEM，UV-可见光谱，IR光谱，N ₂吸附和元素分析进行​​了表征。根据表征数据，钛大部分以四面体配位状态结合到沸石的骨架中。H ₂ O ₂对环烯烃的催化环氧化并测量了叔丁基氢过氧化物（TBHP）。与中孔TS-1和大孔Ti-β相比，使用TBHP作为氧化剂制备的具有大孔的钛硅酸盐显示出对大分子氧化的优异性能。