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Synthesis and characterization of strong acidic mesoporous alumino-silicates constructed of zeolite MCM-22 precursors

Paper ID Volume ID Publish Year Pages File Format Full-Text
52966 46892 2009 4 PDF Available
Title
Synthesis and characterization of strong acidic mesoporous alumino-silicates constructed of zeolite MCM-22 precursors
Abstract

Through two-step crystallization procedure and utilizing cetyltrimethylammonium bromide (CTAB) as a template, a KIT-1-like structural mesoporous aluminosilicate (denoted as MM-22) has been synthesized from zeolite MCM-22 precursors under basic conditions. MM-22 was characterized by XRD, FT-IR, N2 adsorption-desorption, 27Al-MAS NMR and NH3-TPD techniques. The results show that MM-22 is pure mesoporous phase, and constructed of secondary structure units of zeolite MCM-22. Compared with classic Al-MCM-41 and ZSM-5, MM-22 has stronger acidity, and shows higher catalytic activity in the alkylation reaction of phenol with tert-butanol.

Keywords
Zeolite MCM-22 precursors; Two-step crystallization; Mesoporous; Enhanced acidity; Alkylation
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Synthesis and characterization of strong acidic mesoporous alumino-silicates constructed of zeolite MCM-22 precursors
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 631–634
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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