Incorporation of tungsten into MCM-41 framework

被引：35

作者：

Klepel, O

Böhlmann, W

Ivanov, EB

Riede, V

Papp, H

机构：

[1] Univ Leipzig, Fak Chem & Mineral, D-04103 Leipzig, Germany

[2] Univ Leipzig, Fak Phys & Geowissensch, D-04103 Leipzig, Germany

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2004年 / 76卷 / 1-3期

关键词：

MCM-41; tungsten; incorporation; synthesis; characterization;

D O I：

10.1016/j.micromeso.2004.07.038

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The incorporation of tungsten into the framework of Si-MCM-41 is described. The synthesis was carried out under basic conditions avoiding the formation of polymeric tungsten species, which can lead to extra framework oxide species. The textural and structural properties of the obtained materials have been investigated by XRD and low temperature nitrogen adsorption. The state of the tungsten species has been elucidated by means of XRD, Si-29 MAS NMR, UV-VIS spectroscopy, Raman spectroscopy, and temperature programmed desorption (TPD) of ammonia. An incorporation of tungsten into the framework of MCM-41 was successful by using ammonium (meta) tungstanate as the tungsten source. (C) 2004 Elsevier Inc. All rights reserved.

引用

收藏

页码：105 / 112

页数：8

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