Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction
- Autores
- Piqueras, Cristian Martin; Puccia, Virginia; Vega, Daniel Alberto; Volpe, María Alicia
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The performance of platinum, gold and copper catalysts with low (0.1 wt%) and high (2-3.8 wt%) metal loadings, supported on ceria with high surface area (240 m2/g), are contrasted in the hydrogenation of cinnamaldehyde. Two reaction solvents were tested: single-phase near critical CO2 + isopropanol mixtureand supercritical CO2, both performed at 323K and 20 MPa. Exceptionally high activities were measured under supercritical CO2 for low loaded platinum and gold catalysts, while selectivities to cinnamyl alcohol were in the range of 80-90%. The same trends, butin a lower degree, were observed for the correspondingcopper sample. The catalytic pattern in near critical condition was between the ones corresponding to supercritical CO2 and classical gas-liquid, as previously reported for platinum based catalysts. The enhancement of the selectivity can be explained by a combined effect of the supercritical CO2 substrate interaction and by the adsorption of cinnamaldehyde on sites of the metal-ceria interface. Based on the TPR and XPS characterizations, it was concluded that the rise of the activity would be due to a major concentration of these active sites in the low loaded samples.
Fil: Piqueras, Cristian Martin. 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: Puccia, Virginia. 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: Vega, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; 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
-
Hydrogenation
Supercritical - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/25979
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network_name_str |
CONICET Digital (CONICET) |
spelling |
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interactionPiqueras, Cristian MartinPuccia, VirginiaVega, Daniel AlbertoVolpe, María AliciaHydrogenationSupercriticalhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The performance of platinum, gold and copper catalysts with low (0.1 wt%) and high (2-3.8 wt%) metal loadings, supported on ceria with high surface area (240 m2/g), are contrasted in the hydrogenation of cinnamaldehyde. Two reaction solvents were tested: single-phase near critical CO2 + isopropanol mixtureand supercritical CO2, both performed at 323K and 20 MPa. Exceptionally high activities were measured under supercritical CO2 for low loaded platinum and gold catalysts, while selectivities to cinnamyl alcohol were in the range of 80-90%. The same trends, butin a lower degree, were observed for the correspondingcopper sample. The catalytic pattern in near critical condition was between the ones corresponding to supercritical CO2 and classical gas-liquid, as previously reported for platinum based catalysts. The enhancement of the selectivity can be explained by a combined effect of the supercritical CO2 substrate interaction and by the adsorption of cinnamaldehyde on sites of the metal-ceria interface. Based on the TPR and XPS characterizations, it was concluded that the rise of the activity would be due to a major concentration of these active sites in the low loaded samples.Fil: Piqueras, Cristian Martin. 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: Puccia, Virginia. 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: Vega, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; 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; ArgentinaElsevier Science2015-12-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/25979Piqueras, Cristian Martin; Puccia, Virginia; Vega, Daniel Alberto; Volpe, María Alicia; Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction; Elsevier Science; Applied Catalysis B: Environmental; 185; 19-12-2015; 265-2710926-3373CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926337315303155info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2015.12.031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:41Zoai:ri.conicet.gov.ar:11336/25979instacron: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:34982025-09-29 10:40:41.465CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction |
title |
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction |
spellingShingle |
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction Piqueras, Cristian Martin Hydrogenation Supercritical |
title_short |
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction |
title_full |
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction |
title_fullStr |
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction |
title_full_unstemmed |
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction |
title_sort |
Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction |
dc.creator.none.fl_str_mv |
Piqueras, Cristian Martin Puccia, Virginia Vega, Daniel Alberto Volpe, María Alicia |
author |
Piqueras, Cristian Martin |
author_facet |
Piqueras, Cristian Martin Puccia, Virginia Vega, Daniel Alberto Volpe, María Alicia |
author_role |
author |
author2 |
Puccia, Virginia Vega, Daniel Alberto Volpe, María Alicia |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Hydrogenation Supercritical |
topic |
Hydrogenation Supercritical |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
The performance of platinum, gold and copper catalysts with low (0.1 wt%) and high (2-3.8 wt%) metal loadings, supported on ceria with high surface area (240 m2/g), are contrasted in the hydrogenation of cinnamaldehyde. Two reaction solvents were tested: single-phase near critical CO2 + isopropanol mixtureand supercritical CO2, both performed at 323K and 20 MPa. Exceptionally high activities were measured under supercritical CO2 for low loaded platinum and gold catalysts, while selectivities to cinnamyl alcohol were in the range of 80-90%. The same trends, butin a lower degree, were observed for the correspondingcopper sample. The catalytic pattern in near critical condition was between the ones corresponding to supercritical CO2 and classical gas-liquid, as previously reported for platinum based catalysts. The enhancement of the selectivity can be explained by a combined effect of the supercritical CO2 substrate interaction and by the adsorption of cinnamaldehyde on sites of the metal-ceria interface. Based on the TPR and XPS characterizations, it was concluded that the rise of the activity would be due to a major concentration of these active sites in the low loaded samples. Fil: Piqueras, Cristian Martin. 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: Puccia, Virginia. 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: Vega, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; 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 |
The performance of platinum, gold and copper catalysts with low (0.1 wt%) and high (2-3.8 wt%) metal loadings, supported on ceria with high surface area (240 m2/g), are contrasted in the hydrogenation of cinnamaldehyde. Two reaction solvents were tested: single-phase near critical CO2 + isopropanol mixtureand supercritical CO2, both performed at 323K and 20 MPa. Exceptionally high activities were measured under supercritical CO2 for low loaded platinum and gold catalysts, while selectivities to cinnamyl alcohol were in the range of 80-90%. The same trends, butin a lower degree, were observed for the correspondingcopper sample. The catalytic pattern in near critical condition was between the ones corresponding to supercritical CO2 and classical gas-liquid, as previously reported for platinum based catalysts. The enhancement of the selectivity can be explained by a combined effect of the supercritical CO2 substrate interaction and by the adsorption of cinnamaldehyde on sites of the metal-ceria interface. Based on the TPR and XPS characterizations, it was concluded that the rise of the activity would be due to a major concentration of these active sites in the low loaded samples. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-19 |
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/11336/25979 Piqueras, Cristian Martin; Puccia, Virginia; Vega, Daniel Alberto; Volpe, María Alicia; Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction; Elsevier Science; Applied Catalysis B: Environmental; 185; 19-12-2015; 265-271 0926-3373 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/25979 |
identifier_str_mv |
Piqueras, Cristian Martin; Puccia, Virginia; Vega, Daniel Alberto; Volpe, María Alicia; Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me-CeO2 (Me = Cu, Pt, Au): Insight of the role of Me-Ce interaction; Elsevier Science; Applied Catalysis B: Environmental; 185; 19-12-2015; 265-271 0926-3373 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926337315303155 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2015.12.031 |
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 application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
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 |
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1844614435782524928 |
score |
13.070432 |