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Synthesis and characterization of TAPO-31 molecular sieves using tripropylamine template

Paper ID Volume ID Publish Year Pages File Format Full-Text
53149 46915 2006 7 PDF Available
Title
Synthesis and characterization of TAPO-31 molecular sieves using tripropylamine template
Abstract

TAPO-31 was synthesized hydrothermally using a novel template tri-n-propylamine for the first time. C and N analysis shows the butanol from titanium tetrabutoxide plays an important role in the synthesis. The incorporation of titanium into framework of phosphorous and both aluminium and phosphorous sites was suggested from elemental analysis. Isomorphous substitution of titanium (III) in AlPO framework was confirmed from ESR and 31P MASNMR spectra. UV–Vis and XPS spectra revealed a partial oxidation of framework titanium (III) into titanium (IV) in the calcined TAPO-31 and thus the presence of redox centers in the products. The higher titanium content (Al/Ti = 10) TAPO-31 sample shows higher activity for phenol hydroxylation compared to lower titanium content (Al/Ti = 20) and Titanium impregnated AlPO4-31.

Keywords
TAPO-31; Tripropylamine; XRD; SEM; TG/DTA; FT-IR; MASNMR; ESR; UV–Vis; XPS
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Synthesis and characterization of TAPO-31 molecular sieves using tripropylamine template
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 7, Issue 12, December 2006, Pages 1015–1021
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
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Price after discount Only $4.95
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Full-text PDF Download
Online Support
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