An in-depth study of supported In2O3 catalysts for the selective catalytic reduction of NOx:: The influence of the oxide support

被引：45

作者：

Gervasini, A

Perdigon-Melon, JA

Guimon, C

Auroux, A

机构：

[1] Inst Rech Catalyse, CNRS, F-69626 Villeurbanne, France

[2] Univ Milan, Dipartimento Chim Fis & Elettrochim, I-20133 Milan, Italy

[3] CSIC, Inst Quim Fis Rocasolano, E-28006 Madrid, Spain

[4] Lab Phys Chim Mol, F-64053 Pau 09, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2006年 / 110卷 / 01期

关键词：

D O I：

10.1021/jp0532824

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：

The influence of the oxide support (i.e., Al2O3, Nb2O5, SiO2, and TiO2) on the surface properties, reduction and oxidation properties, acid-base properties, and catalytic activity of supported indium oxide catalysts has been investigated by temperature-programmed reduction/oxidation, thermogravimetry coupled to differential scanning calorimetry, ammonia and sulfur dioxide adsorption calorimetry, and reduction of NO, by ethene in highly oxygen-rich atmosphere. Two series of In2O3-containing catalysts at low (approximate to 3 wt %) and at theoretical geometric monolayer (from 20 to 40 wt %) In2O3 Content were prepared and their properties were compared with unsupported In2O3 material. Supports able to disperse the In2O3 aggregates with high In stabilization gave rise to active catalytic systems. Among the studied oxide supports, Al2O3 and, to a lower extent, TiO2 were found to be the best supports for obtaining active de-NO, catalysts.

引用

页码：240 / 249

页数：10

共 28 条

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