Synthesis and characterization of highly dispersed molybdenum species in SBA-15 mesoporous molecular sieves

被引：23

作者：

Briot, E

Piquemal, JY

Brégeault, JM

机构：

[1] Univ Paris 06, Syst Interfaciaux Echelle Nanometr CNRS FRE 2312, F-75252 Paris 05, France

[2] Univ Denis Diderot, ITODYS, Lab Chim Mat Divises & Catalyse, F-75251 Paris, France

来源：

NEW JOURNAL OF CHEMISTRY | 2002年 / 26卷 / 10期

关键词：

D O I：

10.1039/b201434n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An original pathway involving H2O2 is described for the incorporation of highly dispersed molybdenum oxo species into the mesoporous network of an SBA-15 type silica. This procedure requires a mixture of templating agents: the triblock copolymer EO20PO70EO20 and the quaternary ammonium salt CTMACl, which are commonly used for SBA-15 and MCM-41 syntheses, respectively. Physicochemical techniques clearly demonstrate that the triblock surfactant/CTMACl molar ratio has to be carefully controlled in order to i) obtain a significant amount of Mo in the mesoporous silica and ii) retain the SBA-15 structure.

引用

页码：1443 / 1447

页数：5

共 21 条

[1] THE DETERMINATION OF PORE VOLUME AND AREA DISTRIBUTIONS IN POROUS SUBSTANCES .1. COMPUTATIONS FROM NITROGEN ISOTHERMS [J].