Design of active molybdenum oxides:: β-MoO3 and/or silicomolybdic acid supported on mesoporous MCM-41 catalysts

被引：22

作者：

Huong, TM ^{[1
]}

Fukushima, K ^{[1
]}

Ohkita, H ^{[1
]}

Mizushima, T ^{[1
]}

Kakuta, N ^{[1
]}

机构：

[1] Toyohashi Univ Technol, Dept Mat Sci, Toyohashi, Aichi 4418580, Japan

来源：

CATALYSIS COMMUNICATIONS | 2006年 / 7卷 / 03期

基金：

日本学术振兴会;

关键词：

beta-MoO3; silicomolybdic acid; MCM-41; oxidation of methane (partial);

D O I：

10.1016/j.catcom.2005.09.007

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：

A silicomolybdic acid (SMA) supported on mesoporous MCM-41 catalyst was successfully prepared by an impregnation with a molybdic acid solution via ion exchange of a Na2MoO4 center dot 2H(2)O solution. On the other hand, beta-MoO3, the metastable phase of molybdenum oxide, was predominantly generated on MCM-41 by use of the molybdic acid solution adjusted by nitric acid and was anchored by the formation of SMA on the support. The molybdic acid is an attractive precursor to design either SMA or beta-MoO3 as well as to stabilize them on MCM-41 by the formation of SMA. Those catalysts showed interesting performances in partial oxidation of methane to formaldehyde by molecular oxygen. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：127 / 131

页数：5

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