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Synthesis, characterization and activity in cyclohexene epoxidation of mesoporous TiO2–SiO2 mixed oxides

Paper ID Volume ID Publish Year Pages File Format Full-Text
52760 46885 2007 7 PDF Available
Title
Synthesis, characterization and activity in cyclohexene epoxidation of mesoporous TiO2–SiO2 mixed oxides
Abstract

A series of porous TiO2–SiO2 mixed metal oxides were synthesized via sol–gel route using n-alkyl amine as pore directing templates. The mixed oxides were characterized by nitrogen physisorption for surface area, pore volume and pore size distribution, as well as by FTIR, TGA, SEM, and TEM for the dispersion of titanium. These compounds are good catalysts for liquid phase epoxidation of cyclohexene using hydrogen peroxide as the oxidant. The effects of various factors on catalyst reactivity were also studied. The catalysts performance and selectivity are enhanced in protic solvents when compared to aprotic solvents.

Keywords
TiO2–SiO2; Mixed oxides; Porous materials; Physisorption; Cyclohexene epoxidation; Hydrogen peroxide; Catalysts; Sol–gel; Surface area
First Page Preview
Synthesis, characterization and activity in cyclohexene epoxidation of mesoporous TiO2–SiO2 mixed oxides
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 6, June 2007, Pages 950–956
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis