Branching Fraction of the NH2+NO Reaction between 1210 and 1370 K.

Peter Glarborg; Per G. Kristensen; Kim Dam-Johansen; James A. Miller

doi:10.1021/jp970264g

Branching Fraction of the NH₂+NO Reaction between 1210 and 1370 K.

Peter Glarborg
, Per G. Kristensen
, Kim Dam-Johansen
, James A. Miller

Department of Chemical and Biochemical Engineering

Sandia National Laboratories

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The branching fraction for the NH₂ + NO reaction has been determined in the temperature range 1210-1370 K from flow reactor experiments on the NH3/NO/O2 and CO/NH₃/NO/O₂ systems. The branching fraction is defined as α = k₁/(k₁ + k₂), where NH₂ + NO → NNH + OH (1) and NH₂ + NO → N₂ + H₂O (2). The experiments were performed at very low oxygen concentrations to minimize the impact of secondary reactions. The results show that a increases gradually from a value of 0.35 ± 0.04 at 1211 K to 0.45 ± 0.02 at 1369 K. The data blend smoothly with the most recent direct measurements and confirm the significant rise in branching fraction suggested by previous high-temperature determinations in static reactors and flames.

Original language	English
Journal	Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
Volume	101
Issue number	20
Pages (from-to)	3741-3745
ISSN	1089-5639
DOIs	https://doi.org/10.1021/jp970264g
Publication status	Published - 1997

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@article{b2bfd459005146c6916bf0a881d785df,

title = "Branching Fraction of the NH2+NO Reaction between 1210 and 1370 K.",

abstract = "The branching fraction for the NH2 + NO reaction has been determined in the temperature range 1210-1370 K from flow reactor experiments on the NH3/NO/O2 and CO/NH3/NO/O2 systems. The branching fraction is defined as α = k1/(k1 + k2), where NH2 + NO → NNH + OH (1) and NH2 + NO → N2 + H2O (2). The experiments were performed at very low oxygen concentrations to minimize the impact of secondary reactions. The results show that a increases gradually from a value of 0.35 ± 0.04 at 1211 K to 0.45 ± 0.02 at 1369 K. The data blend smoothly with the most recent direct measurements and confirm the significant rise in branching fraction suggested by previous high-temperature determinations in static reactors and flames.",

author = "Peter Glarborg and Kristensen, \{Per G.\} and Kim Dam-Johansen and Miller, \{James A.\}",

year = "1997",

doi = "10.1021/jp970264g",

language = "English",

volume = "101",

pages = "3741--3745",

journal = "Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory",

issn = "1089-5639",

publisher = "American Chemical Society",

number = "20",

}

TY - JOUR

T1 - Branching Fraction of the NH2+NO Reaction between 1210 and 1370 K.

AU - Glarborg, Peter

AU - Kristensen, Per G.

AU - Dam-Johansen, Kim

AU - Miller, James A.

PY - 1997

Y1 - 1997

N2 - The branching fraction for the NH2 + NO reaction has been determined in the temperature range 1210-1370 K from flow reactor experiments on the NH3/NO/O2 and CO/NH3/NO/O2 systems. The branching fraction is defined as α = k1/(k1 + k2), where NH2 + NO → NNH + OH (1) and NH2 + NO → N2 + H2O (2). The experiments were performed at very low oxygen concentrations to minimize the impact of secondary reactions. The results show that a increases gradually from a value of 0.35 ± 0.04 at 1211 K to 0.45 ± 0.02 at 1369 K. The data blend smoothly with the most recent direct measurements and confirm the significant rise in branching fraction suggested by previous high-temperature determinations in static reactors and flames.

AB - The branching fraction for the NH2 + NO reaction has been determined in the temperature range 1210-1370 K from flow reactor experiments on the NH3/NO/O2 and CO/NH3/NO/O2 systems. The branching fraction is defined as α = k1/(k1 + k2), where NH2 + NO → NNH + OH (1) and NH2 + NO → N2 + H2O (2). The experiments were performed at very low oxygen concentrations to minimize the impact of secondary reactions. The results show that a increases gradually from a value of 0.35 ± 0.04 at 1211 K to 0.45 ± 0.02 at 1369 K. The data blend smoothly with the most recent direct measurements and confirm the significant rise in branching fraction suggested by previous high-temperature determinations in static reactors and flames.

U2 - 10.1021/jp970264g

DO - 10.1021/jp970264g

M3 - Journal article

SN - 1089-5639

VL - 101

SP - 3741

EP - 3745

JO - Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory

JF - Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory

IS - 20