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

共 46 条

[1] Oxidative dehydrogenation of propane over calcined vanadate-exchanged Mg,Al-layered double hydroxides [J].

Bahranowski, K ;

Bueno, G ;

Corberán, VC ;

Kooli, F ;

Serwicka, EM ;

Valenzuela, RX ;

Wcislo, K .

APPLIED CATALYSIS A-GENERAL, 1999, 185 (01) :65-73

[2] Thermal behaviour of hydroxides, hydroxysalts and hydrotalcites [J].

Bera, P ;

Rajamathi, M ;

Hegde, MS ;

Kamath, PV .

BULLETIN OF MATERIALS SCIENCE, 2000, 23 (02) :141-145

[3]

BISH DL, 1977, AM MINERAL, V62, P458

[4] Influence of the acid-base character of supported vanadium catalysts on their catalytic properties for the oxidative dehydrogenation of n-butane [J].

Blasco, T ;

Nieto, JML ;

Dejoz, A ;

Vazquez, MI .

JOURNAL OF CATALYSIS, 1995, 157 (02) :271-282

[5] Adsorption of gases in multimolecular layers [J].

Brunauer, S ;

Emmett, PH ;

Teller, E .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1938, 60 :309-319

[6] Structural characterisation of a VMgO catalyst used in the oxidative dehydrogenation of propane [J].

Burrows, A ;

Kiely, CJ ;

Perregaard, J ;

Hojlund-Nielsen, PE ;

Vorbeck, G ;

Calvino, JJ ;

López-Cartes, C .

CATALYSIS LETTERS, 1999, 57 (03) :121-128

[7] HYDROTALCITE-TYPE ANIONIC CLAYS: PREPARATION, PROPERTIES AND APPLICATIONS [J].

Cavani, F. ;

Trifiro, F. ;

Vaccari, A. .

CATALYSIS TODAY, 1991, 11 (02) :173-301

[8] SELECTIVE OXIDATIVE DEHYDROGENATION OF PROPANE OVER V-MG-O CATALYSTS [J].

CHAAR, MA ;

PATEL, D ;

KUNG, HH .

JOURNAL OF CATALYSIS, 1988, 109 (02) :463-467

[9] SELECTIVE OXIDATIVE DEHYDROGENATION OF BUTANE OVER V-MG-O CATALYSTS [J].

CHAAR, MA ;

PATEL, D ;

KUNG, MC ;

KUNG, HH .

JOURNAL OF CATALYSIS, 1987, 105 (02) :483-498

[10]

CRANSTON RW, 1957, ADV CATAL, V9, P143

← 1 2 3 4 5 →