Thermal decomposition of Mg/V hydrotalcites and catalytic performance of the products in oxidative dehydrogenation reactions

被引：24

作者：

Holgado, MJ ^{[1
]}

Labajos, FM ^{[1
]}

Montero, MJS ^{[1
]}

Rives, V ^{[1
]}

机构：

[1] Univ Salamanca, Dept Quim Inorgan, E-37008 Salamanca, Spain

来源：

MATERIALS RESEARCH BULLETIN | 2003年 / 38卷 / 14期

关键词：

layered compounds; x-ray diffraction; infrared spectroscopy; thermogravimetric analysis; catalytic properties;

D O I：

10.1016/j.materresbull.2003.07.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Layered double hydroxides with the hydrotalcite-type structure containing Mg2+ and V3+ in the brucite-like layers, possessing different V contents, have been prepared and characterised by elemental. chemical analysis, powder X-ray diffraction, Fourier transform infrared (FT-IR) spectroscopy and specific surface area and porosity assessment by nitrogen adsorption; thermal decomposition was studied by Differential Thermal Analysis and Thermogravimetric Analysis. The solids obtained after calcination at 800 degreesC were tested as catalysts for oxidative dehydrogenation of propane and n-butane. Results indicate that the relative amounts Of Mg3(VO4) and MgO, depending on the V content in the starting hydrotalcite, determines the performance of the catalysts in oxidative dehydrogenation of propane and n-butane. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1879 / 1891

页数：13

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