Effects of trivalent dopants on the redox properties of Ce0.6Zr0.4O2 mixed oxide

被引：220

作者：

Vidmar, P

Fornasiero, P

Kaspar, J

Gubitosa, G

Graziani, M

机构：

[1] UNIV TRIESTE,DIPARTIMENTO SCI CHIM,I-34127 TRIESTE,ITALY

[2] MAGNETI MARELLI DSS,I-10078 VENARIA,TURIN,ITALY

来源：

JOURNAL OF CATALYSIS | 1997年 / 171卷 / 01期

关键词：

D O I：

10.1006/jcat.1997.1784

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：

We have observed that the insertion of trivalent cations into the lattice of Ce0.6Zr0.4O2 solid solution improves the oxygen storage capacity at low temperatures by decreasing the temperature of the reduction in the bulk of the solid solution compared to the undoped sample. The effect depends on the type of dopant and its concentration. Reduction of the solid solution at moderate temperatures is strongly improved upon aging in H-2/Ar independently of the extensive sintering of the sample. (C) 1997 Academic Press.

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页码：160 / 168

页数：9

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