汽车尾气三效催化剂的现状、发展及动向

Status and Tendency of the Three-way-catalyst Used in the Treatment of Automotive Exhaust Gases

摘要: 阐明了汽车尾气治理的必要性,分析了3种废气(NO_x、CO、HC)所发生的化学反应.并三效催化(TWC)的主要成份:活性组分、助剂、涂层、载体及其发展进行了综述.

Abstract: The importance of the treatment of automative exhaust gases has been discussed in this paper. Chemical reactions of the three exhaust gases NO_x CO and HC are analyzed. The main components, assistant agent, coating, supporter and the trendence of development of the three-way-catalyst (TWC) are also reviewed.