Microwave oxidation of alkenes and alcohols using highly active and stable mesoporous organotitanium silicates

被引：18

作者：

Balu, Alina M. ^{[1
]}

Hidalgo, Jose M. ^{[2
]}

Campelo, Juan M. ^{[2
]}

Luna, Diego

Luque, Rafael ^{[1
]}

Marinas, Jose M.

Romero, Antonio A. ^{[2
]}

机构：

[1] Univ York, Dept Chem, Green Chem Ctr Excellence, York YO10 5DD, N Yorkshire, England

[2] Univ Cordoba, Fac Ciencias, Dept Quim Organ, E-14014 Cordoba, Spain

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2008年 / 293卷 / 1-2期

关键词：

Ti-MCM-41; Organic functionalisation; Oxidations of alcohols and alkenes; Microwaves;

D O I：

10.1016/j.molcata.2008.06.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mesoporous organically modified Ti-MCM-41 materials were synthesized employing different Ti precursors. Materials were found to possess improved properties in terms of stability, hydrophobicity and activity compared to the parent Ti-MCM-41, preserving their mesoporous structural order. The organically modified mesoporous materials were found to be very active and selective in the oxidation of various substrates including alcohols and alkenes under microwave irradiation using hydrogen peroxide. The materials were also highly stable and reusable up to four times preserving over 90% of their initial activity. The high activity and stability of the solids can be attributed to the higher Ti loading compared to the parent material as well as to an increase in hydrophobicity due to the organic functionalisation. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：17 / 24

页数：8

共 41 条

[1] A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].