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Temperature-(208-318 K) and pressure-(18-696Torr) dependent rate coefficients for the reaction between OH and HNO3

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Temperature-(208-318 K) and pressure-(18-696Torr) dependent rate coefficients for the reaction between OH and HNO3. / Dulitz, Katrin; Amedro, Damien; Dillon, Terry J.; Pozzer, Andrea; Crowley, John N.

In: Atmospheric Chemistry and Physics, Vol. 18, No. 4, 19.02.2018, p. 2381-2394.

Research output: Contribution to journalArticle

Harvard

Dulitz, K, Amedro, D, Dillon, TJ, Pozzer, A & Crowley, JN 2018, 'Temperature-(208-318 K) and pressure-(18-696Torr) dependent rate coefficients for the reaction between OH and HNO3', Atmospheric Chemistry and Physics, vol. 18, no. 4, pp. 2381-2394. https://doi.org/10.5194/acp-18-2381-2018, https://doi.org/10.5194/acp-18-2381-2018

APA

Dulitz, K., Amedro, D., Dillon, T. J., Pozzer, A., & Crowley, J. N. (2018). Temperature-(208-318 K) and pressure-(18-696Torr) dependent rate coefficients for the reaction between OH and HNO3. Atmospheric Chemistry and Physics, 18(4), 2381-2394. https://doi.org/10.5194/acp-18-2381-2018, https://doi.org/10.5194/acp-18-2381-2018

Vancouver

Dulitz K, Amedro D, Dillon TJ, Pozzer A, Crowley JN. Temperature-(208-318 K) and pressure-(18-696Torr) dependent rate coefficients for the reaction between OH and HNO3. Atmospheric Chemistry and Physics. 2018 Feb 19;18(4):2381-2394. https://doi.org/10.5194/acp-18-2381-2018, https://doi.org/10.5194/acp-18-2381-2018

Author

Dulitz, Katrin ; Amedro, Damien ; Dillon, Terry J. ; Pozzer, Andrea ; Crowley, John N. / Temperature-(208-318 K) and pressure-(18-696Torr) dependent rate coefficients for the reaction between OH and HNO3. In: Atmospheric Chemistry and Physics. 2018 ; Vol. 18, No. 4. pp. 2381-2394.

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@article{d5f392ca812a4fc0b603e4a16403e5c9,
title = "Temperature-(208-318 K) and pressure-(18-696Torr) dependent rate coefficients for the reaction between OH and HNO3",
abstract = "Abstract.Rate coefficients (k5) for the title reaction were ob-tained using pulsed laser photolytic generation of OH cou-pled to its detection by laser-induced fluorescence (PLP–LIF). More than 80 determinations of k5were carried out in nitrogen or air bath gas at various temperatures and pres-sures. The accuracy of the rate coefficients obtained was en-hanced by in situ measurement of the concentrations of bothHNO3 reactant and NO2 impurity. The rate coefficients showboth temperature and pressure dependence with a rapid in-crease in k5 at low temperatures. The pressure dependencewas weak at room temperature but increased significantly atlow temperatures. The entire data set was combined with se-lected literature values of k5 and parameterised using a com-bination of pressure-dependent and -independent terms togive an expression that covers the relevant pressure and tem-perature range for the atmosphere. A global model, using thenew parameterisation fork5rather than those presently ac-cepted, indicated small but significant latitude- and altitude-dependent changes in the HNO3/NOxratio of between−6 and+6 {\%}. Effective HNO3absorption cross sections(184.95 and 213.86 nm, units of cm2molecule−1) were ob-tained as part of this work:σ213.86=4.52+0.23−0.12×10−19andσ184.95=1.61+0.08−0.04×10−17.",
author = "Katrin Dulitz and Damien Amedro and Dillon, {Terry J.} and Andrea Pozzer and Crowley, {John N.}",
note = "{\circledC} Author(s) 2018.",
year = "2018",
month = "2",
day = "19",
doi = "10.5194/acp-18-2381-2018",
language = "English",
volume = "18",
pages = "2381--2394",
journal = "Atmospheric Chemistry and Physics",
issn = "1680-7316",
publisher = "Copernicus Publications",
number = "4",

}

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TY - JOUR

T1 - Temperature-(208-318 K) and pressure-(18-696Torr) dependent rate coefficients for the reaction between OH and HNO3

AU - Dulitz, Katrin

AU - Amedro, Damien

AU - Dillon, Terry J.

AU - Pozzer, Andrea

AU - Crowley, John N.

N1 - © Author(s) 2018.

PY - 2018/2/19

Y1 - 2018/2/19

N2 - Abstract.Rate coefficients (k5) for the title reaction were ob-tained using pulsed laser photolytic generation of OH cou-pled to its detection by laser-induced fluorescence (PLP–LIF). More than 80 determinations of k5were carried out in nitrogen or air bath gas at various temperatures and pres-sures. The accuracy of the rate coefficients obtained was en-hanced by in situ measurement of the concentrations of bothHNO3 reactant and NO2 impurity. The rate coefficients showboth temperature and pressure dependence with a rapid in-crease in k5 at low temperatures. The pressure dependencewas weak at room temperature but increased significantly atlow temperatures. The entire data set was combined with se-lected literature values of k5 and parameterised using a com-bination of pressure-dependent and -independent terms togive an expression that covers the relevant pressure and tem-perature range for the atmosphere. A global model, using thenew parameterisation fork5rather than those presently ac-cepted, indicated small but significant latitude- and altitude-dependent changes in the HNO3/NOxratio of between−6 and+6 %. Effective HNO3absorption cross sections(184.95 and 213.86 nm, units of cm2molecule−1) were ob-tained as part of this work:σ213.86=4.52+0.23−0.12×10−19andσ184.95=1.61+0.08−0.04×10−17.

AB - Abstract.Rate coefficients (k5) for the title reaction were ob-tained using pulsed laser photolytic generation of OH cou-pled to its detection by laser-induced fluorescence (PLP–LIF). More than 80 determinations of k5were carried out in nitrogen or air bath gas at various temperatures and pres-sures. The accuracy of the rate coefficients obtained was en-hanced by in situ measurement of the concentrations of bothHNO3 reactant and NO2 impurity. The rate coefficients showboth temperature and pressure dependence with a rapid in-crease in k5 at low temperatures. The pressure dependencewas weak at room temperature but increased significantly atlow temperatures. The entire data set was combined with se-lected literature values of k5 and parameterised using a com-bination of pressure-dependent and -independent terms togive an expression that covers the relevant pressure and tem-perature range for the atmosphere. A global model, using thenew parameterisation fork5rather than those presently ac-cepted, indicated small but significant latitude- and altitude-dependent changes in the HNO3/NOxratio of between−6 and+6 %. Effective HNO3absorption cross sections(184.95 and 213.86 nm, units of cm2molecule−1) were ob-tained as part of this work:σ213.86=4.52+0.23−0.12×10−19andσ184.95=1.61+0.08−0.04×10−17.

UR - http://www.scopus.com/inward/record.url?scp=85042400424&partnerID=8YFLogxK

U2 - 10.5194/acp-18-2381-2018

DO - 10.5194/acp-18-2381-2018

M3 - Article

VL - 18

SP - 2381

EP - 2394

JO - Atmospheric Chemistry and Physics

JF - Atmospheric Chemistry and Physics

SN - 1680-7316

IS - 4

ER -