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Beneficial role of SiO2 plugging in AlCl3 heterogenized plugged hexagonal templated silica (PHTS) for the isopropylation of m-cresol

Paper ID Volume ID Publish Year Pages File Format Full-Text
52669 46880 2007 8 PDF Available
Title
Beneficial role of SiO2 plugging in AlCl3 heterogenized plugged hexagonal templated silica (PHTS) for the isopropylation of m-cresol
Abstract

Plugged hexagonal templated silica (PHTS – a modified SBA-15) has been synthesized using triblock co-polymer as template and tetraethyl orthosilicate as silica source under hydrothermal conditions and AlCl3 has been heterogenized on it which is proven to be an efficient heterogeneous catalyst for the isopropylation of m-cresol. The activity of AlCl3 heterogenized on SBA-15 has also been tested for the purpose of comparison. The higher activity of Al–PHTS over Al–SBA-15 has been attributed to the presence of more number of medium strength acid sites formed by the plugging of silica and higher AlCl3 heterogenization in the former catalyst as observed from 27Al MAS NMR and temperature programmed desorption of NH3.

Keywords
m-Cresol; Isopropylation; Thymol; SBA-15; PHTS; Al–PHTS; Al–SBA-15; AlCl3
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Beneficial role of SiO2 plugging in AlCl3 heterogenized plugged hexagonal templated silica (PHTS) for the isopropylation of m-cresol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 7, July 2007, Pages 1080–1087
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us