Tungstocobaltate-pillared layered double hydroxides: Preparation, characterization, magnetic and catalytic properties

被引：18

作者：

Wei, Xiaocui ^{[1
,2
]}

Fu, Youzhi ^{[3
]}

Xu, Lin ^{[1
]}

Li, Fengyan ^{[1
]}

Bi, Bo ^{[1
]}

Liu, Xizheng ^{[1
]}

机构：

[1] NE Normal Univ, Key Lab Polyoxometalates Sci, Minist Educ, Coll Chem, Changchun 130024, Peoples R China

[2] Baicheng Coll Higher Med, Baicheng 137000, PR, Peoples R China

[3] Baicheng Teachers Coll, Dept Chem, Baicheng 137000, PR, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2008年 / 181卷 / 06期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

layered double hydroxides; polyoxometalates; intercalation;

D O I：

10.1016/j.jssc.2008.02.030

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new polyoxometalate anion-pillared layered double hydroxide (LDH) was prepared by aqueous ion exchange of a Mg-Al LDH precursor in nitrate form with the tungstocobaltate anions [CoW12O40](5-). The physicochemical properties of the product were characterized by the methods of powder X-ray diffraction, elemental analysis, infrared spectroscopy, thermogravimetric analysis and cyclic voltammetry. It was confirmed that [CoW12O40](5-) was intercalated between the brucite-type layers of the LDHs without a change in the Structure. Magnetic measurement shows the occurrence of antiferromagnetic interactions between the magnetic centers. The investigation of catalytic performance for this sample exhibits high activity for the oxidation of benzaldehyde by hydrogen peroxide. (c) 2008 Elsevier Inc. All rights reserved.

引用

页码：1292 / 1297

页数：6

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