An investigation of catalysts for the on board synthesis of NH3. A possible route to low temperature NOx reduction for lean-burn engines

John Breen, Robbie Burch, N. Lingaiah

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Platinum group metal catalysts have been investigated for the formation of NH3 from NO + H-2 at low temperatures in the absence and presence of CO. Although CO inhibits the formation of NH3, substantial amounts are still observed with a Pt catalyst. By combining Pt with a support (ceria-zirconia) that has low temperature NOx storage characteristics it has been shown in transient experiments that NH3 can be formed and stored in situ under rich conditions, and may then be used to reduce NOx under lean burn conditions.
Original languageEnglish
Pages (from-to)171-174
Number of pages4
JournalCatalysis Letters
Volume79
Publication statusPublished - 2002

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