Amphiphilic Organosilane-directed Synthesis of Mesoporous ZSM-5 Zeolite Crystals with a Chain-like Morphology

摘要

Mesoporous zeolites with a chain-like morphology were synthesized by adding a rationally designed carbamate-linked organosilane to conventional alkaline zeolite synthesis mixtures. The structure was confirmed by a complementary combination of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen adsorption-desorption measurements. The XRD patterns and SEM images of the samples acquired at different crystallization time clearly showed the change of crystallinity and the forming process of the morphology.