OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms

Autores
Gaona Colmán, Elizabeth; Blanco, Maria Belen; Barnes, Ian; Wiesen, Peter; Teruel, Mariano Andres
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Gas-phase rate coefficients for the reactions of OH and O3 with camphene have been measured over the temperature range 288-311 K using the relative rate method. The experiments were carried out in an environmental chamber using long-path FTIR spectroscopy to monitor the reactants. Room temperature rate coefficients (in cm3 per molecule per s) of k(camphene+OH) = (5.1 ± 1.1) × 10-11 and k(camphene+O3) = (5.1 ± 1.1) × 10-19 were obtained for the OH and O3 reactions, respectively. The temperature dependence of the reactions are best fit by the Arrhenius expressions (in cm3 per molecule per s) k(camphene+OH) = (4.1 ± 1.2) × 10-12 exp[(754 ± 44)/T] for the OH reaction and k(O3+camphene) = (7.6 ± 1.2) × 10-18 exp[-(805 ± 51)/T] for the O3 reaction. To the best of our knowledge, this is the first report of the temperature dependencies for the reactions of OH and O3 with camphene. In addition, product studies have been performed at (298 ± 2) K and 760 Torr of synthetic air for the reaction of OH + camphene in the absence and presence of NOx, and for O3 molecules + camphene at (298 ± 2) K and 750 Torr of synthetic air. For the OH reaction the following molar product yields were obtained: acetone (10 ± 2)% and (33 ± 6)%, and formaldehyde (3.6 ± 0.7)% and (10 ± 2)% in the absence and presence of NOx, respectively. Formaldehyde with a molar yield of (29 ± 6)% was the only product uniquely identified and quantified for the O3 reaction.
Fil: Gaona Colmán, Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Blanco, Maria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Barnes, Ian. University of Wuppertal; Alemania
Fil: Wiesen, Peter. University of Wuppertal; Alemania
Fil: Teruel, Mariano Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
TERPENES
ATMOSPHERIC OXIDATION
ARRHENIUS PARAMETERS
MECHANISMS AND PRODUCT DISTRIBUTION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/63149
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/63149
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanismsGaona Colmán, ElizabethBlanco, Maria BelenBarnes, IanWiesen, PeterTeruel, Mariano AndresTERPENESATMOSPHERIC OXIDATIONARRHENIUS PARAMETERSMECHANISMS AND PRODUCT DISTRIBUTIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Gas-phase rate coefficients for the reactions of OH and O3 with camphene have been measured over the temperature range 288-311 K using the relative rate method. The experiments were carried out in an environmental chamber using long-path FTIR spectroscopy to monitor the reactants. Room temperature rate coefficients (in cm3 per molecule per s) of k(camphene+OH) = (5.1 ± 1.1) × 10-11 and k(camphene+O3) = (5.1 ± 1.1) × 10-19 were obtained for the OH and O3 reactions, respectively. The temperature dependence of the reactions are best fit by the Arrhenius expressions (in cm3 per molecule per s) k(camphene+OH) = (4.1 ± 1.2) × 10-12 exp[(754 ± 44)/T] for the OH reaction and k(O3+camphene) = (7.6 ± 1.2) × 10-18 exp[-(805 ± 51)/T] for the O3 reaction. To the best of our knowledge, this is the first report of the temperature dependencies for the reactions of OH and O3 with camphene. In addition, product studies have been performed at (298 ± 2) K and 760 Torr of synthetic air for the reaction of OH + camphene in the absence and presence of NOx, and for O3 molecules + camphene at (298 ± 2) K and 750 Torr of synthetic air. For the OH reaction the following molar product yields were obtained: acetone (10 ± 2)% and (33 ± 6)%, and formaldehyde (3.6 ± 0.7)% and (10 ± 2)% in the absence and presence of NOx, respectively. Formaldehyde with a molar yield of (29 ± 6)% was the only product uniquely identified and quantified for the O3 reaction.Fil: Gaona Colmán, Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Blanco, Maria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Barnes, Ian. University of Wuppertal; AlemaniaFil: Wiesen, Peter. University of Wuppertal; AlemaniaFil: Teruel, Mariano Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaRoyal Society of Chemistry2017-01-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63149Gaona Colmán, Elizabeth; Blanco, Maria Belen; Barnes, Ian; Wiesen, Peter; Teruel, Mariano Andres; OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms; Royal Society of Chemistry; RSC Advances; 7; 5; 12-1-2017; 2733-27442046-20692046-2069CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2017/ra/c6ra26656h#!divAbstractinfo:eu-repo/semantics/altIdentifier/doi/10.1039/C6RA26656Hinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:50Zoai:ri.conicet.gov.ar:11336/63149instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:10:50.419CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms
title OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms
spellingShingle OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms
Gaona Colmán, Elizabeth
TERPENES
ATMOSPHERIC OXIDATION
ARRHENIUS PARAMETERS
MECHANISMS AND PRODUCT DISTRIBUTION
title_short OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms
title_full OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms
title_fullStr OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms
title_full_unstemmed OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms
title_sort OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms
dc.creator.none.fl_str_mv Gaona Colmán, Elizabeth
Blanco, Maria Belen
Barnes, Ian
Wiesen, Peter
Teruel, Mariano Andres
author Gaona Colmán, Elizabeth
author_facet Gaona Colmán, Elizabeth
Blanco, Maria Belen
Barnes, Ian
Wiesen, Peter
Teruel, Mariano Andres
author_role author
author2 Blanco, Maria Belen
Barnes, Ian
Wiesen, Peter
Teruel, Mariano Andres
author2_role author
author
author
author
dc.subject.none.fl_str_mv TERPENES
ATMOSPHERIC OXIDATION
ARRHENIUS PARAMETERS
MECHANISMS AND PRODUCT DISTRIBUTION
topic TERPENES
ATMOSPHERIC OXIDATION
ARRHENIUS PARAMETERS
MECHANISMS AND PRODUCT DISTRIBUTION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Gas-phase rate coefficients for the reactions of OH and O3 with camphene have been measured over the temperature range 288-311 K using the relative rate method. The experiments were carried out in an environmental chamber using long-path FTIR spectroscopy to monitor the reactants. Room temperature rate coefficients (in cm3 per molecule per s) of k(camphene+OH) = (5.1 ± 1.1) × 10-11 and k(camphene+O3) = (5.1 ± 1.1) × 10-19 were obtained for the OH and O3 reactions, respectively. The temperature dependence of the reactions are best fit by the Arrhenius expressions (in cm3 per molecule per s) k(camphene+OH) = (4.1 ± 1.2) × 10-12 exp[(754 ± 44)/T] for the OH reaction and k(O3+camphene) = (7.6 ± 1.2) × 10-18 exp[-(805 ± 51)/T] for the O3 reaction. To the best of our knowledge, this is the first report of the temperature dependencies for the reactions of OH and O3 with camphene. In addition, product studies have been performed at (298 ± 2) K and 760 Torr of synthetic air for the reaction of OH + camphene in the absence and presence of NOx, and for O3 molecules + camphene at (298 ± 2) K and 750 Torr of synthetic air. For the OH reaction the following molar product yields were obtained: acetone (10 ± 2)% and (33 ± 6)%, and formaldehyde (3.6 ± 0.7)% and (10 ± 2)% in the absence and presence of NOx, respectively. Formaldehyde with a molar yield of (29 ± 6)% was the only product uniquely identified and quantified for the O3 reaction.
Fil: Gaona Colmán, Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Blanco, Maria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Barnes, Ian. University of Wuppertal; Alemania
Fil: Wiesen, Peter. University of Wuppertal; Alemania
Fil: Teruel, Mariano Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description Gas-phase rate coefficients for the reactions of OH and O3 with camphene have been measured over the temperature range 288-311 K using the relative rate method. The experiments were carried out in an environmental chamber using long-path FTIR spectroscopy to monitor the reactants. Room temperature rate coefficients (in cm3 per molecule per s) of k(camphene+OH) = (5.1 ± 1.1) × 10-11 and k(camphene+O3) = (5.1 ± 1.1) × 10-19 were obtained for the OH and O3 reactions, respectively. The temperature dependence of the reactions are best fit by the Arrhenius expressions (in cm3 per molecule per s) k(camphene+OH) = (4.1 ± 1.2) × 10-12 exp[(754 ± 44)/T] for the OH reaction and k(O3+camphene) = (7.6 ± 1.2) × 10-18 exp[-(805 ± 51)/T] for the O3 reaction. To the best of our knowledge, this is the first report of the temperature dependencies for the reactions of OH and O3 with camphene. In addition, product studies have been performed at (298 ± 2) K and 760 Torr of synthetic air for the reaction of OH + camphene in the absence and presence of NOx, and for O3 molecules + camphene at (298 ± 2) K and 750 Torr of synthetic air. For the OH reaction the following molar product yields were obtained: acetone (10 ± 2)% and (33 ± 6)%, and formaldehyde (3.6 ± 0.7)% and (10 ± 2)% in the absence and presence of NOx, respectively. Formaldehyde with a molar yield of (29 ± 6)% was the only product uniquely identified and quantified for the O3 reaction.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/63149
Gaona Colmán, Elizabeth; Blanco, Maria Belen; Barnes, Ian; Wiesen, Peter; Teruel, Mariano Andres; OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms; Royal Society of Chemistry; RSC Advances; 7; 5; 12-1-2017; 2733-2744
2046-2069
2046-2069
CONICET Digital
CONICET
url http://hdl.handle.net/11336/63149
identifier_str_mv Gaona Colmán, Elizabeth; Blanco, Maria Belen; Barnes, Ian; Wiesen, Peter; Teruel, Mariano Andres; OH- and O3-initiated atmospheric degradation of camphene: Temperature dependent rate coefficients, product yields and mechanisms; Royal Society of Chemistry; RSC Advances; 7; 5; 12-1-2017; 2733-2744
2046-2069
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2017/ra/c6ra26656h#!divAbstract
info:eu-repo/semantics/altIdentifier/doi/10.1039/C6RA26656H
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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