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

Niann-Shiah Wang; David L. Yang; Ming-Chang Lin

doi:10.1016/0009-2614(89)85172-3

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

Niann-Shiah Wang^*, David L. Yang, Ming-Chang Lin

^*Corresponding author for this work

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The kinetics of the reaction of CN radicals with NO and NO₂ 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 Torr of Ar has a negative temperature coefficient 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 + NO₂ reaction was found to be very fast and pressure independent and the measured bimolecular rate constant can be represented by k₂ = 10^-10.40±0.12 exp + [(186 ± 23)/T] cm³/molecule s.

Original language	English
Pages (from-to)	479-484
Number of pages	6
Journal	Chemical Physics Letters
Volume	163
Issue number	6
DOIs	https://doi.org/10.1016/0009-2614(89)85172-3
State	Published - 24 Nov 1989

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title = "Kinetics of CN radical reactions with NOx between 297 and 740 K",

abstract = "The kinetics of the reaction of CN radicals with NO and NO2 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 Torr of Ar has a negative temperature coefficient 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 + NO2 reaction was found to be very fast and pressure independent and the measured bimolecular rate constant can be represented by k2 = 10-10.40±0.12 exp + [(186 ± 23)/T] cm3/molecule s.",

author = "Niann-Shiah Wang and Yang, {David L.} and Ming-Chang Lin",

year = "1989",

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T1 - Kinetics of CN radical reactions with NOx between 297 and 740 K

AU - Wang, Niann-Shiah

AU - Yang, David L.

AU - Lin, Ming-Chang

PY - 1989/11/24

Y1 - 1989/11/24

N2 - The kinetics of the reaction of CN radicals with NO and NO2 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 Torr of Ar has a negative temperature coefficient 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 + NO2 reaction was found to be very fast and pressure independent and the measured bimolecular rate constant can be represented by k2 = 10-10.40±0.12 exp + [(186 ± 23)/T] cm3/molecule s.

AB - The kinetics of the reaction of CN radicals with NO and NO2 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 Torr of Ar has a negative temperature coefficient 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 + NO2 reaction was found to be very fast and pressure independent and the measured bimolecular rate constant can be represented by k2 = 10-10.40±0.12 exp + [(186 ± 23)/T] cm3/molecule s.

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U2 - 10.1016/0009-2614(89)85172-3

DO - 10.1016/0009-2614(89)85172-3

M3 - Article

AN - SCOPUS:28144433389

SN - 0009-2614

VL - 163

SP - 479

EP - 484

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 6

ER -

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

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