新一代三效催化剂的关键材料─CexZr1-xO2固溶体研究进展

被引:28
作者
胡玉才
冯长根
王丽琼
王大祥
张兴燕
李云
机构
[1] 北京理工大学机电工程学院
[2] 北京理工大学机电工程学院 北京
[3] 北京
关键词
CexZr1-xO2固溶体; 储氧能力; 三效催化剂; 材料;
D O I
10.19672/j.cnki.1003-6504.2002.04.018
中图分类号
X703.3 [设备];
学科分类号
083002 ;
摘要
汽车尾气排放法规的日趋严格迫切要求开发高性能的三效催化剂。传统三效催化剂中的CeO2 高温下易发生烧结而降低或失去储氧能力。而加入锆所形成的CexZr1 -xO2 固溶体具有良好的抗高温老化性能、低温还原性能和较高的储氧能力 ,可以作为新一代三效催化剂的关键材料。
引用
收藏
页码:42 / 44+47 +47-50
页数:5
相关论文
共 17 条
[1]  
Role of cerium-zirconium mixed oxides as catalysts for car pollution: A short review. Masakuni O. Journal of Alloys and Compounds . 1998
[2]  
Use of CeO2-based oxides in the three-way catalysis. Kaspar J,Fornasiero P,Graziani M. Catalysis Today . 1999
[3]  
Effect of coprecipitation conditions on the surface area, phase composition,and reducibility of CeO2-ZrO2-Y2 O3 materials for automotive three-way catalysts. Kirichenko O A,Gramham G W,Chun W. Stud. Surf. Sci. Catal. 1998, 118(Preparation of Catalysts VII) .
[4]  
Combustion synthesis and properties of nanostructured ceria-zirconia solid solutions. Aruna S T,Patil K C. Nanostructured Materials . 1998
[5]  
Ceria films on Zirconia substrates: models for understanding oxygen-storage properties. Putna E S,Bunluesin T,Fan X L,et al. Catalysis Today . 1999
[6]  
Preparation of zirconiaceria materials by soft chemistry. Rossignol S,Madier Y,Duprez D. Catalysis Today . 1999
[7]  
The role of rare earth dopants in nanophase zirconia catalysts for automotive emission control. Loong C K,Ozawa M. Journal of Alloys and Compounds . 2000
[8]  
Surface and structural characterization of CexZr1-x O2 CEZIRENCAT mixed oxides as potential three-way catalyst promoters. Colon G,Pijolat M,Valdivieso F,et al. Journal of the Chemical Society Faraday Transactions . 1998
[9]  
The preparation of high surface area CeO2-ZrO2 mixed oxides by a surfactant-assisted approach. Terrible D,Trovarelli A,Llorca J,et al. Catalysis Today . 1998
[10]  
Thermal stability of oxygen storage properties in a mixed CeO 2-ZrO2 system. Hori C E,Permana H,Simon K Y,et al. Applied Catalysis . 1998