Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides

Autores
Lenz, Jennifer; Campo, Betiana Carla; Alvarez, Mariana; Volpe, María Alicia
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Goethite, hematite, and iron oxide supported on alumina are employed as supports for gold catalysts. Several samples are prepared and are characterized by TEM, TPR, and XANES. The catalysts are tested for the liquid phase hydrogenation of crotonaldehyde and cinnamaldehyde in a Batch reactor at 100 C and at 1 MPa of H2 employing isopropanol as the solvent. Gold particles supported on the different iron oxides are more selective than the ones supported on an inert oxide (c-Al2O3). Gold supported on hematite presents the highest selectivity toward the unsaturated alcohol. It is concluded that the promotional effect of iron on gold is neither due to the redox properties of the support nor due to the presence of charged gold particles. No dependence of selectivity to crotyl alcohol or to cinnamyl alcohol on gold particle size was observed. The origin of the improved selectivity to the unsaturated alcohol of Au/iron oxides would be related to morphological aspects of gold particles.2 employing isopropanol as the solvent. Gold particles supported on the different iron oxides are more selective than the ones supported on an inert oxide (c-Al2O3). Gold supported on hematite presents the highest selectivity toward the unsaturated alcohol. It is concluded that the promotional effect of iron on gold is neither due to the redox properties of the support nor due to the presence of charged gold particles. No dependence of selectivity to crotyl alcohol or to cinnamyl alcohol on gold particle size was observed. The origin of the improved selectivity to the unsaturated alcohol of Au/iron oxides would be related to morphological aspects of gold particles.
Fil: Lenz, Jennifer. Universitat Saarland; Alemania
Fil: Campo, Betiana Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Alvarez, Mariana. Universidad Nacional del Sur. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
Fil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Materia
SELECTIVE HYDROGENATION
a,b-UNSATURATED ALDEHYDES
IRON OXIDES
GOLD CATALYST
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:11336/240951
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/240951
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxidesLenz, JenniferCampo, Betiana CarlaAlvarez, MarianaVolpe, María AliciaSELECTIVE HYDROGENATIONa,b-UNSATURATED ALDEHYDESIRON OXIDESGOLD CATALYSThttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Goethite, hematite, and iron oxide supported on alumina are employed as supports for gold catalysts. Several samples are prepared and are characterized by TEM, TPR, and XANES. The catalysts are tested for the liquid phase hydrogenation of crotonaldehyde and cinnamaldehyde in a Batch reactor at 100 C and at 1 MPa of H2 employing isopropanol as the solvent. Gold particles supported on the different iron oxides are more selective than the ones supported on an inert oxide (c-Al2O3). Gold supported on hematite presents the highest selectivity toward the unsaturated alcohol. It is concluded that the promotional effect of iron on gold is neither due to the redox properties of the support nor due to the presence of charged gold particles. No dependence of selectivity to crotyl alcohol or to cinnamyl alcohol on gold particle size was observed. The origin of the improved selectivity to the unsaturated alcohol of Au/iron oxides would be related to morphological aspects of gold particles.2 employing isopropanol as the solvent. Gold particles supported on the different iron oxides are more selective than the ones supported on an inert oxide (c-Al2O3). Gold supported on hematite presents the highest selectivity toward the unsaturated alcohol. It is concluded that the promotional effect of iron on gold is neither due to the redox properties of the support nor due to the presence of charged gold particles. No dependence of selectivity to crotyl alcohol or to cinnamyl alcohol on gold particle size was observed. The origin of the improved selectivity to the unsaturated alcohol of Au/iron oxides would be related to morphological aspects of gold particles.Fil: Lenz, Jennifer. Universitat Saarland; AlemaniaFil: Campo, Betiana Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Alvarez, Mariana. Universidad Nacional del Sur. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; ArgentinaFil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaAcademic Press Inc Elsevier Science2009-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/240951Lenz, Jennifer; Campo, Betiana Carla; Alvarez, Mariana; Volpe, María Alicia; Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides; Academic Press Inc Elsevier Science; Journal of Catalysis; 267; 1; 8-2009; 50-560021-9517CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0021951709002474info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcat.2009.07.012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:07:57Zoai:ri.conicet.gov.ar:11336/240951instacron: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 10:07:57.872CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides
title Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides
spellingShingle Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides
Lenz, Jennifer
SELECTIVE HYDROGENATION
a,b-UNSATURATED ALDEHYDES
IRON OXIDES
GOLD CATALYST
title_short Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides
title_full Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides
title_fullStr Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides
title_full_unstemmed Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides
title_sort Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides
dc.creator.none.fl_str_mv Lenz, Jennifer
Campo, Betiana Carla
Alvarez, Mariana
Volpe, María Alicia
author Lenz, Jennifer
author_facet Lenz, Jennifer
Campo, Betiana Carla
Alvarez, Mariana
Volpe, María Alicia
author_role author
author2 Campo, Betiana Carla
Alvarez, Mariana
Volpe, María Alicia
author2_role author
author
author
dc.subject.none.fl_str_mv SELECTIVE HYDROGENATION
a,b-UNSATURATED ALDEHYDES
IRON OXIDES
GOLD CATALYST
topic SELECTIVE HYDROGENATION
a,b-UNSATURATED ALDEHYDES
IRON OXIDES
GOLD CATALYST
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Goethite, hematite, and iron oxide supported on alumina are employed as supports for gold catalysts. Several samples are prepared and are characterized by TEM, TPR, and XANES. The catalysts are tested for the liquid phase hydrogenation of crotonaldehyde and cinnamaldehyde in a Batch reactor at 100 C and at 1 MPa of H2 employing isopropanol as the solvent. Gold particles supported on the different iron oxides are more selective than the ones supported on an inert oxide (c-Al2O3). Gold supported on hematite presents the highest selectivity toward the unsaturated alcohol. It is concluded that the promotional effect of iron on gold is neither due to the redox properties of the support nor due to the presence of charged gold particles. No dependence of selectivity to crotyl alcohol or to cinnamyl alcohol on gold particle size was observed. The origin of the improved selectivity to the unsaturated alcohol of Au/iron oxides would be related to morphological aspects of gold particles.2 employing isopropanol as the solvent. Gold particles supported on the different iron oxides are more selective than the ones supported on an inert oxide (c-Al2O3). Gold supported on hematite presents the highest selectivity toward the unsaturated alcohol. It is concluded that the promotional effect of iron on gold is neither due to the redox properties of the support nor due to the presence of charged gold particles. No dependence of selectivity to crotyl alcohol or to cinnamyl alcohol on gold particle size was observed. The origin of the improved selectivity to the unsaturated alcohol of Au/iron oxides would be related to morphological aspects of gold particles.
Fil: Lenz, Jennifer. Universitat Saarland; Alemania
Fil: Campo, Betiana Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Alvarez, Mariana. Universidad Nacional del Sur. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
Fil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
description Goethite, hematite, and iron oxide supported on alumina are employed as supports for gold catalysts. Several samples are prepared and are characterized by TEM, TPR, and XANES. The catalysts are tested for the liquid phase hydrogenation of crotonaldehyde and cinnamaldehyde in a Batch reactor at 100 C and at 1 MPa of H2 employing isopropanol as the solvent. Gold particles supported on the different iron oxides are more selective than the ones supported on an inert oxide (c-Al2O3). Gold supported on hematite presents the highest selectivity toward the unsaturated alcohol. It is concluded that the promotional effect of iron on gold is neither due to the redox properties of the support nor due to the presence of charged gold particles. No dependence of selectivity to crotyl alcohol or to cinnamyl alcohol on gold particle size was observed. The origin of the improved selectivity to the unsaturated alcohol of Au/iron oxides would be related to morphological aspects of gold particles.2 employing isopropanol as the solvent. Gold particles supported on the different iron oxides are more selective than the ones supported on an inert oxide (c-Al2O3). Gold supported on hematite presents the highest selectivity toward the unsaturated alcohol. It is concluded that the promotional effect of iron on gold is neither due to the redox properties of the support nor due to the presence of charged gold particles. No dependence of selectivity to crotyl alcohol or to cinnamyl alcohol on gold particle size was observed. The origin of the improved selectivity to the unsaturated alcohol of Au/iron oxides would be related to morphological aspects of gold particles.
publishDate 2009
dc.date.none.fl_str_mv 2009-08
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/11336/240951
Lenz, Jennifer; Campo, Betiana Carla; Alvarez, Mariana; Volpe, María Alicia; Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides; Academic Press Inc Elsevier Science; Journal of Catalysis; 267; 1; 8-2009; 50-56
0021-9517
CONICET Digital
CONICET
url http://hdl.handle.net/11336/240951
identifier_str_mv Lenz, Jennifer; Campo, Betiana Carla; Alvarez, Mariana; Volpe, María Alicia; Liquid phase hydrogenation of α,β-unsaturated aldehydes over gold supported on iron oxides; Academic Press Inc Elsevier Science; Journal of Catalysis; 267; 1; 8-2009; 50-56
0021-9517
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/S0021951709002474
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcat.2009.07.012
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
dc.publisher.none.fl_str_mv Academic Press Inc Elsevier Science
publisher.none.fl_str_mv Academic Press Inc Elsevier Science
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
_version_ 1842270025089548288
score 13.13397

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