摘要
综述了铈在三效催化剂(TWC)中的应用研究现状。稀土铈对三效催化剂的改性作用表现在:在富燃和贫燃条件下起储存和释放氧的作用;促进活性金属在涂层上的分散程度和提高A l2O3的高温稳定性;促进水煤气变换反应和水蒸汽重整反应。
This paper reviews the multiple roles of ceria in three -way Catalysis. The effects of Ceria on the properties of TWC are diseussed：oxygen storage and release under respeetive, lean and rieh eonditions;promoting aetive metal dispersion and inereasing the thermal stability of A12 03 ;promoting the water gas shift and steam reforming reactions.
出处
《江西科学》
2006年第2期201-204,共4页
Jiangxi Science
关键词
铈
三效催化剂
应用
Ceria,Three - way Catalysis, Applieation
