Metal oxides nanoparticles on SBA-15: Efficient catalyst for methane combustion

被引：34

作者：

Laugel, G. ^{[1
]}

Arichi, J. ^{[1
]}

Moliere, M. ^{[2
]}

Kiennemann, A. ^{[1
]}

Garin, F. ^{[1
]}

Louis, B. ^{[1
]}

机构：

[1] CNRS, UMR 7515, Lab Mat Surfaces & Procedes Catalyse, F-67087 Strasbourg, France

[2] GE Energy Prod Europe GEEPE, F-9007 Belfort, France

来源：

CATALYSIS TODAY | 2008年 / 138卷 / 1-2期

关键词：

safety detector; methane combustion; SBA-15; Co3O4; Mn3O4; nanoparticles;

D O I：

10.1016/j.cattod.2008.04.027

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

Catalysts based on crystalline nanoparticles of Mn and Co metal oxides supported on mesoporous silica SBA-15 have been developed. These materials were characterized by XRD, BET and transmission electron microscopy (TEM) techniques. SBA-15 mesoporous silica was synthesized by a conventional sol-gel method using a tri-block copolymer as surfactant. Supported Mn3O4 and Co3O4 nanoparticles were obtained after calcination of as-impregnated SBA-15 by a metal salt precursor. The catalytic activity was evaluated in the combustion of methane at low concentration. Co3O4/SBA-15 (7 wt.%) exhibits the highest performance among the different oxides. Furthermore, this novel generation of catalysts appeared as active as conventional LaCoO3 perovskite, usually taken as reference for this reaction. Thanks to its organized meso-structures, SBA-15 material creates peculiar diffusion conditions for reactants and/or products. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：38 / 42

页数：5

共 42 条

[1]

Methane and propane combustion over lanthanum transition-metal perovskites: role of oxygen mobility [J].

Alifanti, M ;

Kirchnerova, J ;

Delmon, B ;

Klvana, D .

APPLIED CATALYSIS A-GENERAL, 2004, 262 (02) :167-176

[2]

CATALYTIC COMBUSTION OF METHANE OVER VARIOUS PEROVSKITE-TYPE OXIDES [J].

ARAI, H ;

YAMADA, T ;

EGUCHI, K ;

SEIYAMA, T .

APPLIED CATALYSIS, 1986, 26 (1-2) :265-276

[3]

A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].

BECK, JS ;

VARTULI, JC ;

ROTH, WJ ;

LEONOWICZ, ME ;

KRESGE, CT ;

SCHMITT, KD ;

CHU, CTW ;

OLSON, DH ;

SHEPPARD, EW ;

MCCULLEN, SB ;

HIGGINS, JB ;

SCHLENKER, JL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (27) :10834-10843

[4]

CuCl catalyst heterogenized on diamide immobilized SBA-15 for efficient oxidative carbonylation of methanol to dimethylcarbonate [J].

Cao, Y ;

Hu, JC ;

Yang, P ;

Dai, WL ;

Fan, KN .

CHEMICAL COMMUNICATIONS, 2003, (07) :908-909

[5]

Catalysts for combustion of methane and lower alkanes [J].

Choudhary, TV ;

Banerjee, S ;

Choudhary, VR .

APPLIED CATALYSIS A-GENERAL, 2002, 234 (1-2) :1-23

[6]

Catalytic combustion of methane over palladium-based catalysts [J].

Ciuparu, D ;

Lyubovsky, MR ;

Altman, E ;

Pfefferle, LD ;

Datye, A .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2002, 44 (04) :593-649

[7]

Design of heterogeneous catalysts via multiple active site positioning in organic-inorganic hybrid materials [J].

Dufaud, V ;

Davis, ME .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (31) :9403-9413

[8]

One-pot synthesis of Ga-SBA-15: Activity comparison with Ga-post-treated SBA-15 catalysts [J].

El Berrichi, Z. ;

Louis, B. ;

Tessonnier, J. P. ;

Ersen, O. ;

Cherif, L. ;

Ledoux, M. J. ;

Pham-Huu, C. .

APPLIED CATALYSIS A-GENERAL, 2007, 316 (02) :219-225

[9]

Ga doped SBA-15 as an active and stable catalyst for Friedel-Crafts liquid-phase acylation [J].

El Berrichi, Z ;

Cherif, L ;

Orsen, O ;

Fraissard, J ;

Tessonnier, JP ;

Vanhaecke, E ;

Louis, B ;

Ledoux, MJ ;

Pham-Huu, C .

APPLIED CATALYSIS A-GENERAL, 2006, 298 (194-202) :194-202

[10]

Nanocasting, templated syntheses and structural studies of manganese oxide nanoparticles nucleated in the pores of ordered mesoporous silicas(SBA-15) [J].

Escax, V ;

Impéror-Clerc, M ;

Bazin, D ;

Davidson, A .

COMPTES RENDUS CHIMIE, 2005, 8 (3-4) :663-677

← 1 2 3 4 5 →