✦ LIBER ✦

Kinetics of CN radical reactions with NOx between 297 and 740 K

✍ Scribed by Niann S. Wang; David L. Yang; M.C. Lin

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 375 KB
Volume: 163
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(89)85172-3

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✦ Synopsis

The kinetics of the reaction of CN radicals with NO and NOz have been studied with the two-laser pump-probe technique at temperatures between 297 and 740 K over a broad range of pressure. The CN+NO reaction was found to be strongly pressure dependent and the rate constant measured at 100 Torrof Ar has a negative temperature coeffkient of 10.4 kJ/mol. These results suggest that the reaction occurs mainly be recombination and there is no evidence of CO+N2 formation up to 740 K. The CN t NO2 reaction was found to be very fast and pressure independent and the measured bimolecular rate constant can be represented by k~=10-'040~o'2expf[(186f23)/T] cm'/molecules.

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