Toluene total oxidation over Co supported catalysts synthesised using memory effect" of Mg-Al hydrotalcite

被引：47

作者：

Gennequin, C. ^{[1
]}

Cousin, R. ^{[1
]}

Lamonier, J. -F. ^{[1
]}

Siffert, S. ^{[1
]}

Aboukais, A. ^{[1
]}

机构：

[1] Univ Littoral Cote dOpale, MREI, EA 2598, Lab Catalyse & Environm, F-59140 Dunkerque, France

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 07期

关键词：

cobalt; hydrotalcite; XRD; TPR; toluene oxidation; memory effect;

D O I：

10.1016/j.catcom.2008.01.015

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：

Cobalt supported on calcined hydrotalcite catalysts were prepared using the memory effect of Mg-Al hydrotalcite. Mg-Al was calcined at different temperatures (500, 600 and 700 degrees C) and dipped in a Co nitrate aqueous solution. Mg-Al was regenerated and Co catalysts were obtained after the calcination under air at 500 degrees C. The catalyst synthesised with hydrotalcite calcined at 700 degrees C (Co/Mg-Al(700)500) showed high activity and selectivity for toluene oxidation. This interesting catalytic behaviour was correlated to the high quantity of Co species reducible at low temperature. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1639 / 1643

页数：5

共 31 条

[1] Cu/Ni/Al layered double hydroxides as precursors of catalysts for the wet air oxidation of phenol aqueous solutions [J].

Alejandre, A ;

Medina, F ;

Rodriguez, X ;

Salagre, P ;

Cesteros, Y ;

Sueiras, JE .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 30 (1-2) :195-207

[2] TEMPERATURE-PROGRAMMED REDUCTION OF COO/AL2O3 CATALYSTS [J].

ARNOLDY, P ;

MOULIJN, JA .

JOURNAL OF CATALYSIS, 1985, 93 (01) :38-54

[3] Influence of the preparation method on the structure-activity of cobalt oxide catalysts supported on alumina for complete benzene oxidation [J].

Ataloglou, T ;

Vakros, J ;

Bourikas, K ;

Fountzoula, C ;

Kordulis, C ;

Lycourghiotis, A .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 57 (04) :299-312

[4] Catalytic combustion of C3 hydrocarbons and oxygenates over Mn3O4 [J].

Baldi, M ;

Finocchio, E ;

Milella, F ;

Busca, G .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1998, 16 (01) :43-51

[5] Sorption of terephthalate anions by calcined and uncalcined hydrotalcite-like compounds [J].

Crepaldi, EL ;

Tronto, J ;

Cardoso, LP ;

Valim, JB .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2002, 211 (2-3) :103-114

[6] Physicochemical characterization and adsorption behavior of calcined Zn/Al hydrotalcite-like compound (HTlc) towards removal of fluoride from aqueous solution [J].

Das, DP ;

Das, J ;

Parida, K .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2003, 261 (02) :213-220

[7] Photochemical ozone creation potentials for organic compounds in northwest Europe calculated with a master chemical mechanism [J].

Derwent, RG ;

Jenkin, ME ;

Saunders, SM ;

Pilling, MJ .

ATMOSPHERIC ENVIRONMENT, 1998, 32 (14-15) :2429-2441

[8] A study of structural memory effects in synthetic hydrotalcites using environmental SEM [J].

Erickson, KL ;

Bostrom, TE ;

Frost, RL .

MATERIALS LETTERS, 2005, 59 (2-3) :226-229

[9] Catalytic oxidation of VOCs on Au/Ce-Ti-O [J].

Gennequin, C. ;

Lamallem, M. ;

Cousin, R. ;

Siffert, S. ;

Aissi, F. ;

Aboukais, A. .

CATALYSIS TODAY, 2007, 122 (3-4) :301-306

[10] ANIONIC PHOTOCATALYSTS SUPPORTED IN LAYERED DOUBLE HYDROXIDES - INTERCALATION AND PHOTOPHYSICAL PROPERTIES OF A RUTHENIUM COMPLEX ANION IN SYNTHETIC HYDROTALCITE [J].

GIANNELIS, EP ;

NOCERA, DG ;

PINNAVAIA, TJ .

INORGANIC CHEMISTRY, 1987, 26 (01) :203-205

← 1 2 3 4 →