Direct synthesis, characterization and catalytic performance of novel Ti-SBA-1 cubic mesoporous molecular sieves

被引：43

作者：

Ji, D

Zhao, R

Lv, GM

Qian, G

Yan, L

Suo, JS ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2005年 / 281卷 / 1-2期

关键词：

Ti-SBA-1; mesoporous molecular sieves; synthesis; characterization; catalytic performance;

D O I：

10.1016/j.apcata.2004.11.010

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：

The 3d-cubic Pm3n Ti-incorporated SBA-1 mesoporous molecular sieves were directly synthesized under strongly acidic conditions and characterized by various techniques. XRD showed that the synthesized mesoporous materials had a well-ordered cubic structure. N-2 adsorption/desorption measurements confirmed that the resultant samples had large mesopores (ca. 20 angstrom) and high surface areas (> 1000 m(2) g(-1)). UV-vis and Fr-IR results revealed that incorporated titanium species existed in a highly dispersed state and had tetrahedral coordination. SEM is used to determine the particle size and particle morphology of the synthesized materials. A catalytic test using epoxidation of styrene as a probe reaction proved that the framework Ti in the Ti-SBA-1 possessed relatively high activity and selectivity. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：39 / 45

页数：7

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