Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes

Autores
Gutierrez, Marta Cecilia; Nazareno, Mónica Azucena; Sosa, V. E.; López De Mishima, B. A.; Mishima, Horacio Tacashi
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The hydrogenation of benzalacetone and benzalacetophenone was carried out using atomic hydrogen permeating through a palladium membrane. A two-compartment cell separated by a Pd sheet or a palladized Pd (Pd/Pd black) sheet electrode was employed. The reduction products were identified by (GC) gas chromatography, UV-vis absorption spectroscopy andNMRspectroscopy. The carbon-carbon double bond was hydrogenated and the benzylacetone and benzylacetophenone were obtained as products using palladium catalyst. The current efficiency for hydrogenation reaction increases when the current density for water electrolysis decreases and depends on the initial chalcone concentration. It is over 90% at the concentration of 10mmolL-1. The hydrogen absorption and diffusion into and through a palladium membrane electrode has been studied by using an electrochemical impedance spectroscopy method. The impedance results would indicate that the hydrogen permeated through the membrane is consumed by the chalcone during the hydrogenation process keeping as the permeable boundary condition in the outer side of the Pd membrane the hydrogen activity almost zero. The hydrogen entering the metal through an adsorbed state and the rate of hydrogen absorption is diffusion-controlled.
Fil: Gutierrez, Marta Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Nazareno, Mónica Azucena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Sosa, V. E.. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas; Argentina
Fil: López De Mishima, B. A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Mishima, Horacio Tacashi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Materia
CHALCONES
HYDROGEN PERMEATING
HYDROGENATION
PALLADIUM ELECTRODE
SELECTIVE REDUCTION
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:11336/190068
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/190068
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodesGutierrez, Marta CeciliaNazareno, Mónica AzucenaSosa, V. E.López De Mishima, B. A.Mishima, Horacio TacashiCHALCONESHYDROGEN PERMEATINGHYDROGENATIONPALLADIUM ELECTRODESELECTIVE REDUCTIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The hydrogenation of benzalacetone and benzalacetophenone was carried out using atomic hydrogen permeating through a palladium membrane. A two-compartment cell separated by a Pd sheet or a palladized Pd (Pd/Pd black) sheet electrode was employed. The reduction products were identified by (GC) gas chromatography, UV-vis absorption spectroscopy andNMRspectroscopy. The carbon-carbon double bond was hydrogenated and the benzylacetone and benzylacetophenone were obtained as products using palladium catalyst. The current efficiency for hydrogenation reaction increases when the current density for water electrolysis decreases and depends on the initial chalcone concentration. It is over 90% at the concentration of 10mmolL-1. The hydrogen absorption and diffusion into and through a palladium membrane electrode has been studied by using an electrochemical impedance spectroscopy method. The impedance results would indicate that the hydrogen permeated through the membrane is consumed by the chalcone during the hydrogenation process keeping as the permeable boundary condition in the outer side of the Pd membrane the hydrogen activity almost zero. The hydrogen entering the metal through an adsorbed state and the rate of hydrogen absorption is diffusion-controlled.Fil: Gutierrez, Marta Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaFil: Nazareno, Mónica Azucena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaFil: Sosa, V. E.. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas; ArgentinaFil: López De Mishima, B. A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaFil: Mishima, Horacio Tacashi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaPergamon-Elsevier Science Ltd2010-08info: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/11336/190068Gutierrez, Marta Cecilia; Nazareno, Mónica Azucena; Sosa, V. E.; López De Mishima, B. A.; Mishima, Horacio Tacashi; Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 55; 20; 8-2010; 5831-58390013-4686CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468610007115info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2010.05.032info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:46Zoai:ri.conicet.gov.ar:11336/190068instacron: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 10:05:47.09CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes
title Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes
spellingShingle Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes
Gutierrez, Marta Cecilia
CHALCONES
HYDROGEN PERMEATING
HYDROGENATION
PALLADIUM ELECTRODE
SELECTIVE REDUCTION
title_short Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes
title_full Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes
title_fullStr Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes
title_full_unstemmed Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes
title_sort Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes
dc.creator.none.fl_str_mv Gutierrez, Marta Cecilia
Nazareno, Mónica Azucena
Sosa, V. E.
López De Mishima, B. A.
Mishima, Horacio Tacashi
author Gutierrez, Marta Cecilia
author_facet Gutierrez, Marta Cecilia
Nazareno, Mónica Azucena
Sosa, V. E.
López De Mishima, B. A.
Mishima, Horacio Tacashi
author_role author
author2 Nazareno, Mónica Azucena
Sosa, V. E.
López De Mishima, B. A.
Mishima, Horacio Tacashi
author2_role author
author
author
author
dc.subject.none.fl_str_mv CHALCONES
HYDROGEN PERMEATING
HYDROGENATION
PALLADIUM ELECTRODE
SELECTIVE REDUCTION
topic CHALCONES
HYDROGEN PERMEATING
HYDROGENATION
PALLADIUM ELECTRODE
SELECTIVE REDUCTION
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 hydrogenation of benzalacetone and benzalacetophenone was carried out using atomic hydrogen permeating through a palladium membrane. A two-compartment cell separated by a Pd sheet or a palladized Pd (Pd/Pd black) sheet electrode was employed. The reduction products were identified by (GC) gas chromatography, UV-vis absorption spectroscopy andNMRspectroscopy. The carbon-carbon double bond was hydrogenated and the benzylacetone and benzylacetophenone were obtained as products using palladium catalyst. The current efficiency for hydrogenation reaction increases when the current density for water electrolysis decreases and depends on the initial chalcone concentration. It is over 90% at the concentration of 10mmolL-1. The hydrogen absorption and diffusion into and through a palladium membrane electrode has been studied by using an electrochemical impedance spectroscopy method. The impedance results would indicate that the hydrogen permeated through the membrane is consumed by the chalcone during the hydrogenation process keeping as the permeable boundary condition in the outer side of the Pd membrane the hydrogen activity almost zero. The hydrogen entering the metal through an adsorbed state and the rate of hydrogen absorption is diffusion-controlled.
Fil: Gutierrez, Marta Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Nazareno, Mónica Azucena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Sosa, V. E.. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas; Argentina
Fil: López De Mishima, B. A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Mishima, Horacio Tacashi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
description The hydrogenation of benzalacetone and benzalacetophenone was carried out using atomic hydrogen permeating through a palladium membrane. A two-compartment cell separated by a Pd sheet or a palladized Pd (Pd/Pd black) sheet electrode was employed. The reduction products were identified by (GC) gas chromatography, UV-vis absorption spectroscopy andNMRspectroscopy. The carbon-carbon double bond was hydrogenated and the benzylacetone and benzylacetophenone were obtained as products using palladium catalyst. The current efficiency for hydrogenation reaction increases when the current density for water electrolysis decreases and depends on the initial chalcone concentration. It is over 90% at the concentration of 10mmolL-1. The hydrogen absorption and diffusion into and through a palladium membrane electrode has been studied by using an electrochemical impedance spectroscopy method. The impedance results would indicate that the hydrogen permeated through the membrane is consumed by the chalcone during the hydrogenation process keeping as the permeable boundary condition in the outer side of the Pd membrane the hydrogen activity almost zero. The hydrogen entering the metal through an adsorbed state and the rate of hydrogen absorption is diffusion-controlled.
publishDate 2010
dc.date.none.fl_str_mv 2010-08
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/11336/190068
Gutierrez, Marta Cecilia; Nazareno, Mónica Azucena; Sosa, V. E.; López De Mishima, B. A.; Mishima, Horacio Tacashi; Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 55; 20; 8-2010; 5831-5839
0013-4686
CONICET Digital
CONICET
url http://hdl.handle.net/11336/190068
identifier_str_mv Gutierrez, Marta Cecilia; Nazareno, Mónica Azucena; Sosa, V. E.; López De Mishima, B. A.; Mishima, Horacio Tacashi; Hydrogenation of chalcones using hydrogen permeating through a Pd and palladized Pd electrodes; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 55; 20; 8-2010; 5831-5839
0013-4686
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://www.sciencedirect.com/science/article/pii/S0013468610007115
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2010.05.032
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 Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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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