THE KEY ROLE OF HIGHLY DISPERSED RHODIUM IN THE CHEMISTRY OF HYDROGEN CERIA SYSTEMS

被引:41
|
作者
BERNAL, S [1 ]
CALVINO, JJ [1 ]
CIFREDO, GA [1 ]
RODRIGUEZIZQUIERDO, JM [1 ]
PERRICHON, V [1 ]
LAACHIR, A [1 ]
机构
[1] INST RECH CATALYSE,F-69626 VILLEURBANNE,FRANCE
关键词
D O I
10.1039/c39920000460
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In the presence of rhodium, the H-2-CeO2 interaction is to a large extent reversible, simple evacuation of the reduced sample has been demonstrated to promote reoxidation of the support; this explains some puzzling effects of the reduction/evacuation treatments on the actual oxidation state of ceria in Rh-CeO2 catalysts.
引用
收藏
页码:460 / 462
页数:3
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