CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs

Autores
Oyola Rivera, Oscar; Baltanas, Miguel Angel; Cardona Martínez, Nelson
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The production of methanol and dimethyl ether (DME) via CO2 hydrogenation was studied using Pd catalysts supported on a-Ga2O3, a-b-Ga2O3 and b-Ga2O3 polymorphs. The formation of a Pd2Ga intermetallic compound was observed using XRD and XPS. The catalytic activity improves with an increase in the content of the Pd2Ga intermetallic compound. The content of Pd2Ga on Pd/Ga2O3 depends on the Ga2O3 crystalline phase of the catalyst. A slight catalytic deactivation was observed for all samples studied. The Pd/a-b-Ga2O3 catalyst displayed the largest deactivation. The deactivation appears to be caused by a loss of basic sites. The selectivity to dimethyl ether is not dependent on the Pd2Ga content, but depends on the catalyst acidity. This assertion was tested by adding niobia to the catalysts, thus increasing the DME selectivity from 0 to 53%. The content of Pd2Ga over Pd/Ga2O3 catalysts was identified to be a crucial parameter for CO2 hydrogenation to methanol.
Fil: Oyola Rivera, Oscar. Universidad de Puerto Rico; Puerto Rico
Fil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Cardona Martínez, Nelson. Universidad de Puerto Rico; Puerto Rico
Materia
Pd2ga
Gallium Oxide
Co2 Hydrogenation
Methanol - Dimethyl Ether
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/16405
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/16405
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphsOyola Rivera, OscarBaltanas, Miguel AngelCardona Martínez, NelsonPd2gaGallium OxideCo2 HydrogenationMethanol - Dimethyl Etherhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The production of methanol and dimethyl ether (DME) via CO2 hydrogenation was studied using Pd catalysts supported on a-Ga2O3, a-b-Ga2O3 and b-Ga2O3 polymorphs. The formation of a Pd2Ga intermetallic compound was observed using XRD and XPS. The catalytic activity improves with an increase in the content of the Pd2Ga intermetallic compound. The content of Pd2Ga on Pd/Ga2O3 depends on the Ga2O3 crystalline phase of the catalyst. A slight catalytic deactivation was observed for all samples studied. The Pd/a-b-Ga2O3 catalyst displayed the largest deactivation. The deactivation appears to be caused by a loss of basic sites. The selectivity to dimethyl ether is not dependent on the Pd2Ga content, but depends on the catalyst acidity. This assertion was tested by adding niobia to the catalysts, thus increasing the DME selectivity from 0 to 53%. The content of Pd2Ga over Pd/Ga2O3 catalysts was identified to be a crucial parameter for CO2 hydrogenation to methanol.Fil: Oyola Rivera, Oscar. Universidad de Puerto Rico; Puerto RicoFil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Cardona Martínez, Nelson. Universidad de Puerto Rico; Puerto RicoElsevier Science2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/16405Oyola Rivera, Oscar; Baltanas, Miguel Angel; Cardona Martínez, Nelson; CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs; Elsevier Science; Journal of CO2 Utilization; 9; 3-2015; 8-152212-9820enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcou.2014.11.003info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2212982014000596info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:40:11Zoai:ri.conicet.gov.ar:11336/16405instacron: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:34982025-10-15 14:40:11.435CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs
title CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs
spellingShingle CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs
Oyola Rivera, Oscar
Pd2ga
Gallium Oxide
Co2 Hydrogenation
Methanol - Dimethyl Ether
title_short CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs
title_full CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs
title_fullStr CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs
title_full_unstemmed CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs
title_sort CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs
dc.creator.none.fl_str_mv Oyola Rivera, Oscar
Baltanas, Miguel Angel
Cardona Martínez, Nelson
author Oyola Rivera, Oscar
author_facet Oyola Rivera, Oscar
Baltanas, Miguel Angel
Cardona Martínez, Nelson
author_role author
author2 Baltanas, Miguel Angel
Cardona Martínez, Nelson
author2_role author
author
dc.subject.none.fl_str_mv Pd2ga
Gallium Oxide
Co2 Hydrogenation
Methanol - Dimethyl Ether
topic Pd2ga
Gallium Oxide
Co2 Hydrogenation
Methanol - Dimethyl Ether
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 production of methanol and dimethyl ether (DME) via CO2 hydrogenation was studied using Pd catalysts supported on a-Ga2O3, a-b-Ga2O3 and b-Ga2O3 polymorphs. The formation of a Pd2Ga intermetallic compound was observed using XRD and XPS. The catalytic activity improves with an increase in the content of the Pd2Ga intermetallic compound. The content of Pd2Ga on Pd/Ga2O3 depends on the Ga2O3 crystalline phase of the catalyst. A slight catalytic deactivation was observed for all samples studied. The Pd/a-b-Ga2O3 catalyst displayed the largest deactivation. The deactivation appears to be caused by a loss of basic sites. The selectivity to dimethyl ether is not dependent on the Pd2Ga content, but depends on the catalyst acidity. This assertion was tested by adding niobia to the catalysts, thus increasing the DME selectivity from 0 to 53%. The content of Pd2Ga over Pd/Ga2O3 catalysts was identified to be a crucial parameter for CO2 hydrogenation to methanol.
Fil: Oyola Rivera, Oscar. Universidad de Puerto Rico; Puerto Rico
Fil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Cardona Martínez, Nelson. Universidad de Puerto Rico; Puerto Rico
description The production of methanol and dimethyl ether (DME) via CO2 hydrogenation was studied using Pd catalysts supported on a-Ga2O3, a-b-Ga2O3 and b-Ga2O3 polymorphs. The formation of a Pd2Ga intermetallic compound was observed using XRD and XPS. The catalytic activity improves with an increase in the content of the Pd2Ga intermetallic compound. The content of Pd2Ga on Pd/Ga2O3 depends on the Ga2O3 crystalline phase of the catalyst. A slight catalytic deactivation was observed for all samples studied. The Pd/a-b-Ga2O3 catalyst displayed the largest deactivation. The deactivation appears to be caused by a loss of basic sites. The selectivity to dimethyl ether is not dependent on the Pd2Ga content, but depends on the catalyst acidity. This assertion was tested by adding niobia to the catalysts, thus increasing the DME selectivity from 0 to 53%. The content of Pd2Ga over Pd/Ga2O3 catalysts was identified to be a crucial parameter for CO2 hydrogenation to methanol.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/16405
Oyola Rivera, Oscar; Baltanas, Miguel Angel; Cardona Martínez, Nelson; CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs; Elsevier Science; Journal of CO2 Utilization; 9; 3-2015; 8-15
2212-9820
url http://hdl.handle.net/11336/16405
identifier_str_mv Oyola Rivera, Oscar; Baltanas, Miguel Angel; Cardona Martínez, Nelson; CO2 hydrogenation to methanol and dimethyl ether by Pd–Pd2Ga catalysts supported over Ga2O3 polymorphs; Elsevier Science; Journal of CO2 Utilization; 9; 3-2015; 8-15
2212-9820
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcou.2014.11.003
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2212982014000596
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv 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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score 13.22299

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