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A neutral templating route to mesoporous titanium phosphate molecular sieves with enhanced thermal stability

Paper ID Volume ID Publish Year Pages File Format Full-Text
44611 46044 2006 8 PDF Available
Title
A neutral templating route to mesoporous titanium phosphate molecular sieves with enhanced thermal stability
Abstract

For the first time the mesoporous titanium phosphates with high surface area and highly thermal stability were synthesized using long-chain n-alkylamine as structure-directing agents under an ethanol system containing a small quantity of water. Powder X-ray diffraction (XRD) and transmission electron micrograph (TEM) show that the disorder mesopores exist in the mesostructured materials. The mesoporous titanium phosphates calcinated at 500 °C for 10 h still retain the refined pore structure and the high surface area. UV–vis absorption suggests most of titanium is tetrahedrally coordinated in the framework of calcinated mesoporous titanium phosphates. The high catalytic activity in the liquid-phase partial oxidation of cyclohexene with H2O2 oxidant supports the tetrahedral coordination of titanium in these materials.

Keywords
Mesoporous; Titanium phosphates; Thermal stability; Cyclohexene
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A neutral templating route to mesoporous titanium phosphate molecular sieves with enhanced thermal stability
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 312, 8 September 2006, Pages 186–193
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
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