ISSN:
1572-879X
Keywords:
lean burn
;
nitrogen oxides
;
NOx storage catalyst
;
platinum
;
barium
;
NO2
;
surface nitrates
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The mechanisms for storing of NOx in platinum–barium–alumina catalysts during lean–rich transients are investigated. Oxidation of NO to NO2 is found to be an important step. NO2 is found to be important for oxidation of the catalyst or of nitrites to form nitrates. NOx is then stored in the form of surface nitrates. FTIR studies show no formation of bulk nitrates in these experiments.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1019074901578
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