Autor:	Edward Jobson, Sara U Erkfeldt, Mikael Larsson
Rok vydání:	2001
Předmět:	chemistry.chemical_classification Inorganic chemistry Large capacity NO storage General Chemistry Catalysis Propene chemistry.chemical_compound Hydrocarbon chemistry NOx adsorber NOx Carbon monoxide
Zdroj:	Topics in Catalysis. :127-131
ISSN:	1022-5528
DOI:	10.1023/a:1016647217973
Popis:	One possible way to reduce NO x in lean exhausts is by using NO x trap catalysts. This paper addresses storage of NO x on such catalysts at temperatures below the catalyst light-off. Experiments carried out on commercial samples in synthetic exhausts revealed a large capacity for storage of NO x when NO2 was added at temperatures below 150°C. In contrast, when NO was added instead, no storage took place. CO was found to decrease the storage by reacting with NO2 and forming NO and CO2. Propene inhibited the reaction between NO2 and CO and therefore gave rise to larger NO x storage when CO was present. The paper concludes with a discussion of a possible mechanism for the storage of NO x at low temperatures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::90bc0fbb3fe93fabadbf7db4851f793a https://doi.org/10.1023/a:1016647217973 Zobrazit plný text záznamu Full text from SpringerLink