Effect of ordered arrangement of Ce and Zr ion on oxygen storage capacity of Ceria-Zirconia solid solution

被引:24
|
作者
Suda, A [1 ]
Ukyo, Y [1 ]
Yamamura, K [1 ]
Sobukawa, H [1 ]
Sasaki, T [1 ]
Sugiura, M [1 ]
Tanabe, T [1 ]
Nagai, Y [1 ]
机构
[1] Toyota Cent Res & Dev Labs Inc, Appl Catalysis Lab, Aichi 4801192, Japan
关键词
CeO2-ZrO2 solid solution; oxygen storage capacity (OSC); reduction; oxidation; specific surface area;
D O I
10.2109/jcersj.112.586
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The CeO2-ZrO2 solid solution is the most important oxygen storage/release material for use in automobile catalysts. In particular, the ceria-zirconia solid solution with a pyrochlore structure exhibits the highest oxygen storage capacity (OSC). In this study, CeO2-ZrO2 solid solutions containing Y2O3 were synthesized and their OSCs were measured to clarify the influence of an ordered arrangement of Cc and Zr ions on the OSC. As a result of this study, it is concluded that an ordered arrangement of Cc and Zr ions markedly improves the OSC of CeO2-ZrO2 solid solutions.
引用
收藏
页码:586 / 589
页数:4
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