An EPR investigation on the reactivity of oxygen from ceria modified bimetallic Pt-Rh/Al2O3 catalysts in the CO plus NO reaction

被引：12

作者：

Lecomte, JJ

Granger, P

Leclercq, L

Lamonier, JF

Aboukaïs, A

Leclercq, G

机构：

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

[2] Univ Sci & Tech Lille Flandres Artois, URA CNRS 0402, Catalyse Heterogene & Homogene Lab, F-59655 Villeneuve Dascq, France

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1999年 / 158卷 / 1-2期

关键词：

bimetallic Pt-Rh catalysts; EPR; CO plus NO reaction; ceria;

D O I：

10.1016/S0927-7757(99)00151-X

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 CO + NO reaction has been studied on Pt-Rh/Al2O3-CeO2 at P-NO = 5.6 x 10(-3) atm and P-CO = 5 x 10(-3) atm between 25 and 500 degrees C. EPR technique was used to investigate the mechanism of this reaction. O-2(-) species were detected after reaction and it seems that their formation is closely related to changes in catalytic performances of Pt-Rh/Al2O3-CeO2. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：241 / 247

页数：7

共 28 条

[21] INTERACTION OF CERIUM OXIDE WITH NOBLE-METALS [J].