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Citation: FENG Chang-Gen, HU Yu-Cai, WANG Li-Qiong. Influence of Ceria-Zirconia Solid Solution on the Performance of Palladium-only Three-way Catalyst[J]. Chinese Journal of Applied Chemistry, ;2003, 20(2): 159-162. shu

Influence of Ceria-Zirconia Solid Solution on the Performance of Palladium-only Three-way Catalyst

1.
State Key Laboratory of Explosive and Safety Science, School of Mechano-Electronics Engineering, Beijing Institute of Technology, Beijing 100081

Corresponding author: FENG Chang-Gen,
Received Date: 9 July 2002
Available Online: 29 November 2002

Ce_0.6Zr_0.4O₂ solid solution was prepared by coprecipitation technique and characterized by XRD and specific surface area measurements. Ce_0.6Zr_0.4O₂ was used to prepare palladium-only three-way catalyst(TWC) and its influence on the performance of TWC was investigated. The results show Ce_0.6Zr_0.4O₂ has a cubic structure similar to CeO₂, but its specific surface area decreased slowly as the calcination temperature increased. Being aged at high temperature Ce_0.6Zr_0.4O₂ still showed higher conversion of HC, CO and NO and lower lightening temperature in comparison with CeO₂ TWC.
- ceria-zirconia solid solution,
- three-way catalyst,
- performance
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