The use of NOx adsorber catalysts on diesel engines

被引：63

作者：

Gill, LJ ^{[1
]}

Blakeman, PG ^{[1
]}

Twigg, MV ^{[1
]}

Walker, AP ^{[1
]}

机构：

[1] Johnson Matthey Environm Catalysis & Technol, European Technol Ctr, Royston SG8 5HE, Herts, England

来源：

TOPICS IN CATALYSIS | 2004年 / 28卷 / 1-4期

关键词：

NOx adsorber catalyst; diesel; lean-burn engines; NOx emissions; NOx storage; NOx conversion;

D O I：

10.1023/B:TOCA.0000024345.85369.73

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

NOx adsorber catalysts (NACs) can be applied in lean-burn gasoline and diesel engines to reduce NOx emissions. Typically NACs are formulated using platinum as an oxidation catalyst, barium as a storage component and rhodium for NOx reduction. There has been intense research to optimise these catalysts for use on diesel engines aimed at increasing their efficiency, durability, sulfur tolerance and operating temperature window. This paper describes these developments and outlines the current level of knowledge of NOx adsorber catalyst systems using results from small-scale laboratory tests as well as engine-bench work.

引用

页码：157 / 164

页数：8