ISSN:
1572-879X
Keywords:
lean NOx
;
catalytic reduction
;
ethanol
;
methanol
;
silver
;
alumina
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Two intense IR absorption bands due to surface isocyanate (-NCO) species have been observed at 2262 and 2232 cm−1 when an alumina-supported silver catalyst is exposed to a mixture of NO, O2 and ethanol at 150°C and subsequently heated to 〉 300°C in vacuum. The intensity of the isocyanate band is hardly affected by the water existing in the mixture. Methanol is less reactive than ethanol for the formation of isocyanate species. The reaction mechanism of catalytic reduction of lean NOx with alcohols is discussed based on these IR spectroscopic findings.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00805593
