An article Facile synthesis of hydrothermally stable mesoporous ZSM-5 zeolite from Al- SBA-16 via steam assisted crystallization WOS:000525171600023 published article about DRY-GEL CONVERSION; CATALYTIC PERFORMANCE; HIERARCHICAL ZEOLITES; N-HEPTANE; DESILICATION; ADSORPTION; SILICA; SIZE; CRACKING; MCM-41 in [Kamil, M. S. M.; Cheralathan, K. K.] VIT, Sch Adv Sci, Dept Chem, Vellore 632014, Tamil Nadu, India; [Kamil, M. S. M.] C Abdul Hakeem Coll Autonomous, Dept Chem, Melvisharam 632509, Tamil Nadu, India in 2020, Cited 76. Product Details of 103-50-4. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4
In this work, Al grafted SBA-16 (Al-SBA-16) is converted into a fully crystalline hierarchical mesoporous ZSM-5 zeolite with hydrothermal stability by steam assisted crystallization under controlled conditions. The secondary mesoporosity is due to reorganization and recrystallization events happening upon steaming the precursor. Two mesoporous aluminosilicates (Al-SBA-16s) are used as the precursors of zeolites. The precursors are obtained by post-synthetic Al grafting on the silica walls of SBA-16 with aluminium isopropoxide and sodium aluminate. Mesoporous ZSM-5 zeolites obtained from the Al-SBA-16 precursors and commercial ZSM-5 are characterized using XRD, XRF, FT-IR, TEM, N-2 adsorption, Al-27 and Si-29 MAS NMR, and TPD of NH3. The results indicated the presence of intraparticle mesoporosity in the prepared mesoporous zeolites and they have comparable crystallinity with commercial ZSM-5. Catalytic activity of the synthesized mesoporous zeolites in benzylation of mesitylene is found to be comparatively more than commercial ZSM-5, which shows existence of micro/meso hierarchical structure in the mesoporous ZSM-5 zeolites. The aluminium sources, aluminium isopropoxide and sodium aluminate have a remarkable influence on the textural, acidity, and hydrothermal stability characteristics of the synthesized mesoporous ZSM-5 zeolites.
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