The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior

Autores
Rafti, Matias; Lovis, Florian; Imbihl, Ronald
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The kinetics of ammonia oxidation with oxygen over a Rh(110) surface were studied in the pressure range 10-5 –10-4 mbar. Nitrogen was found to be the preferred product at low partial pressures ratios po2 : pNH3 , while the NO pathway was favored with oxygen rich gas mixtures and at high temperature. The reactive sticking coefficient of O2 reaches up to 0.05 under steady state conditions. Pronounced hysteresis effects in the reaction rates were found in T-cycling experiments. Sustained oscillations in the reaction rates occurred under isothermal conditions at T = 620 K at a total pressure of 4 9 10-5 mbar.
Fil: Rafti, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad de Hannover; Alemania
Fil: Lovis, Florian. Universidad de Hannover; Alemania
Fil: Imbihl, Ronald. Universidad de Hannover; Alemania
Materia
Heterogeneous Catalysis
Kinetic Oscillations
Ammonia Oxidation
Ultra high vacuum
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/268600
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory BehaviorRafti, MatiasLovis, FlorianImbihl, RonaldHeterogeneous CatalysisKinetic OscillationsAmmonia OxidationUltra high vacuumhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The kinetics of ammonia oxidation with oxygen over a Rh(110) surface were studied in the pressure range 10-5 –10-4 mbar. Nitrogen was found to be the preferred product at low partial pressures ratios po2 : pNH3 , while the NO pathway was favored with oxygen rich gas mixtures and at high temperature. The reactive sticking coefficient of O2 reaches up to 0.05 under steady state conditions. Pronounced hysteresis effects in the reaction rates were found in T-cycling experiments. Sustained oscillations in the reaction rates occurred under isothermal conditions at T = 620 K at a total pressure of 4 9 10-5 mbar.Fil: Rafti, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad de Hannover; AlemaniaFil: Lovis, Florian. Universidad de Hannover; AlemaniaFil: Imbihl, Ronald. Universidad de Hannover; AlemaniaSpringer2012-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/268600Rafti, Matias; Lovis, Florian; Imbihl, Ronald; The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior; Springer; Catalysis Letters; 142; 1; 2-2012; 16-211011-372XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10562-011-0722-zinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10562-011-0722-zinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:00:41Zoai:ri.conicet.gov.ar:11336/268600instacron: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:34982025-09-10 13:00:42.155CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior
title The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior
spellingShingle The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior
Rafti, Matias
Heterogeneous Catalysis
Kinetic Oscillations
Ammonia Oxidation
Ultra high vacuum
title_short The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior
title_full The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior
title_fullStr The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior
title_full_unstemmed The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior
title_sort The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior
dc.creator.none.fl_str_mv Rafti, Matias
Lovis, Florian
Imbihl, Ronald
author Rafti, Matias
author_facet Rafti, Matias
Lovis, Florian
Imbihl, Ronald
author_role author
author2 Lovis, Florian
Imbihl, Ronald
author2_role author
author
dc.subject.none.fl_str_mv Heterogeneous Catalysis
Kinetic Oscillations
Ammonia Oxidation
Ultra high vacuum
topic Heterogeneous Catalysis
Kinetic Oscillations
Ammonia Oxidation
Ultra high vacuum
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The kinetics of ammonia oxidation with oxygen over a Rh(110) surface were studied in the pressure range 10-5 –10-4 mbar. Nitrogen was found to be the preferred product at low partial pressures ratios po2 : pNH3 , while the NO pathway was favored with oxygen rich gas mixtures and at high temperature. The reactive sticking coefficient of O2 reaches up to 0.05 under steady state conditions. Pronounced hysteresis effects in the reaction rates were found in T-cycling experiments. Sustained oscillations in the reaction rates occurred under isothermal conditions at T = 620 K at a total pressure of 4 9 10-5 mbar.
Fil: Rafti, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad de Hannover; Alemania
Fil: Lovis, Florian. Universidad de Hannover; Alemania
Fil: Imbihl, Ronald. Universidad de Hannover; Alemania
description The kinetics of ammonia oxidation with oxygen over a Rh(110) surface were studied in the pressure range 10-5 –10-4 mbar. Nitrogen was found to be the preferred product at low partial pressures ratios po2 : pNH3 , while the NO pathway was favored with oxygen rich gas mixtures and at high temperature. The reactive sticking coefficient of O2 reaches up to 0.05 under steady state conditions. Pronounced hysteresis effects in the reaction rates were found in T-cycling experiments. Sustained oscillations in the reaction rates occurred under isothermal conditions at T = 620 K at a total pressure of 4 9 10-5 mbar.
publishDate 2012
dc.date.none.fl_str_mv 2012-02
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/11336/268600
Rafti, Matias; Lovis, Florian; Imbihl, Ronald; The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior; Springer; Catalysis Letters; 142; 1; 2-2012; 16-21
1011-372X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/268600
identifier_str_mv Rafti, Matias; Lovis, Florian; Imbihl, Ronald; The O2 + NH3 Reaction Over Rh(110): Steady State Kinetics and Oscillatory Behavior; Springer; Catalysis Letters; 142; 1; 2-2012; 16-21
1011-372X
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://link.springer.com/article/10.1007/s10562-011-0722-z
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10562-011-0722-z
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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 12.48226

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