High-temperature-aging-induced encapsulation of metal particles by support materials: Comparative results for Pt, Pd, and Rh on cerium-zirconium mixed oxides

被引：77

作者：

Graham, GW ^{[1
]}

Jen, HW ^{[1
]}

Chun, W ^{[1
]}

McCabe, RW ^{[1
]}

机构：

[1] Ford Motor Co, Dearborn, MI 48121 USA

来源：

JOURNAL OF CATALYSIS | 1999年 / 182卷 / 01期

关键词：

D O I：

10.1006/jcat.1998.2328

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：

High-temperature-aging-induced deep encapsulation of metal particles by the support material in supported-metal catalysts, recently observed in ceria-zirconia-supported Pd catalysts, is also found in comparable Rh catalysts but not Pt catalysts. Aging temperature and Pd loading thresholds to encapsulation are compared for supported Pd catalysts made from ceria-zirconia of varying surface area stability and composition. (C) 1999 Academic Press.

引用

页码：228 / 233

页数：6