Hierarchical MFI zeolites with open pores were synthesized by a temperature programmed dissolution-recrystallization post-treatment. By controlling the temperature of post-treatment using TPAOH, open macropores and mesopores were created by simply regulating the kinetics of dissolution and recrystallization. Benzyl alcohol self-etherification reaction, which only occurs in micropores, was tested on ZSM-5 to understand the effect of hierarchical pore system. The catalytic activity of hierarchical TS-1 was tested with cyclohexanone ammoximation. Hierarchical ZSM-5 and TS-1 zeolites with open pores showed higher catalytic activity compared with both hollow and conventional ones. The increased catalytic activities can be ascribed to the enhanced diffusion.

通过程序升温的溶解-重结晶后处理合成了具有开孔的分层MFI沸石。通过使用TPAOH控制后处理的温度，只需调节溶解和重结晶的动力学即可形成开放的大孔和中孔。在ZSM-5上测试了仅发生在微孔中的苯甲醇自醚化反应，以了解分层孔系统的影响。用环己酮氨肟化测试了分级TS-1的催化活性。与空心和常规沸石相比，具有开孔的分层ZSM-5和TS-1沸石具有更高的催化活性。催化活性的增加可以归因于扩散的增强。