New Ti-SBA mesoporous solids functionnalized under gas phase conditions: characterisation and application to selective oxidation of alkenes

被引：68

作者：

Chiker, F ^{[1
]}

Nogier, JP ^{[1
]}

Launay, F ^{[1
]}

Bonardet, JL ^{[1
]}

机构：

[1] Univ Paris 06, CNRS,FRE 2312, SIEN, Lab Syst Interfaciaux Echelle Nanometr, F-75252 Paris, France

来源：

APPLIED CATALYSIS A-GENERAL | 2003年 / 243卷 / 02期

关键词：

mesoporous silica; gas phase; Ti-SBA; epoxidation; TBHP;

D O I：

10.1016/S0926-860X(02)00553-7

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：

Functionnalization of mesoporous silica SBA15 with titanium oxide was carried out under gas phase conditions with TiCl4 as titanium source, between 473 and 673 K, followed by hydrolysis at ambient temperature. Spectroscopic characterisations (X-ray diffraction, XPS, IR, UV-Vis.) and porosimetry measurements showed that part of TiO2 is grafted on the internal surface of the pores. Catalytic activity was tested in selective oxidation of bulky alkenes. Several cycles of reaction showed that any leaching of Ti species is observed in the liquid phase. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：309 / 321

页数：13

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