Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation

Autores
Sanguineti, Pamela Beatriz; Baltanas, Miguel Angel; Bonivardi, Adrian Lionel
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The impact of the interaction between copper and gallia was studied over a selected set of supported(2 wt%) Cu on Ga2O3, ZrO2and Ga2O3–ZrO2catalysts, which were employed in the methanol synthesisfrom CO2and CO mixtures. The higher initial rate of methanol production on the Cu/ZrO2catalyst wasaccompanied by an activity loss of ~35% after 5 h on stream. However, all the gallated catalysts werenotoriously more stable (and selective) than copper on pure zirconia was. Temperature-programmedreduction in H2, X-ray photoelectron spectroscopy and infrared spectroscopy of adsorbed CO resultsproved that temperatures higher than 553 K are needed to completely reduced Cu2+to metallic Cu parti-cles in the gallia-containing catalysts, which was attributed to the formation of a CuGa2O4nanospinel. Theternary Cu–Ga2O3–ZrO2catalysts showed an intermediate behavior, quite dependent on the preparationprotocol, which emphasizes the need for tuning the degree of Cu–oxides interactions. It is suggested thatjust a moderate copper–gallia interaction is beneficial in terms of both activity and selectivity but, also,that a detrimental loss of ‘active’ copper should be avoided.
Fil: Sanguineti, Pamela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Materia
Gallia Promotion
Co2 Recycling
Copper Gallate
Cu+
Ftir
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:11336/10041
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/10041
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenationSanguineti, Pamela BeatrizBaltanas, Miguel AngelBonivardi, Adrian LionelGallia PromotionCo2 RecyclingCopper GallateCu+Ftirhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The impact of the interaction between copper and gallia was studied over a selected set of supported(2 wt%) Cu on Ga2O3, ZrO2and Ga2O3–ZrO2catalysts, which were employed in the methanol synthesisfrom CO2and CO mixtures. The higher initial rate of methanol production on the Cu/ZrO2catalyst wasaccompanied by an activity loss of ~35% after 5 h on stream. However, all the gallated catalysts werenotoriously more stable (and selective) than copper on pure zirconia was. Temperature-programmedreduction in H2, X-ray photoelectron spectroscopy and infrared spectroscopy of adsorbed CO resultsproved that temperatures higher than 553 K are needed to completely reduced Cu2+to metallic Cu parti-cles in the gallia-containing catalysts, which was attributed to the formation of a CuGa2O4nanospinel. Theternary Cu–Ga2O3–ZrO2catalysts showed an intermediate behavior, quite dependent on the preparationprotocol, which emphasizes the need for tuning the degree of Cu–oxides interactions. It is suggested thatjust a moderate copper–gallia interaction is beneficial in terms of both activity and selectivity but, also,that a detrimental loss of ‘active’ copper should be avoided.Fil: Sanguineti, Pamela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); ArgentinaFil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); ArgentinaFil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); ArgentinaElsevier Science2015-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10041Sanguineti, Pamela Beatriz; Baltanas, Miguel Angel; Bonivardi, Adrian Lionel; Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation; Elsevier Science; Applied Catalysis A: General; 504; 9-2015; 476-4810926-860Xenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2014.11.021info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X14007273info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:34:22Zoai:ri.conicet.gov.ar:11336/10041instacron: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:34982025-10-22 11:34:22.33CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation
title Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation
spellingShingle Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation
Sanguineti, Pamela Beatriz
Gallia Promotion
Co2 Recycling
Copper Gallate
Cu+
Ftir
title_short Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation
title_full Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation
title_fullStr Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation
title_full_unstemmed Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation
title_sort Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation
dc.creator.none.fl_str_mv Sanguineti, Pamela Beatriz
Baltanas, Miguel Angel
Bonivardi, Adrian Lionel
author Sanguineti, Pamela Beatriz
author_facet Sanguineti, Pamela Beatriz
Baltanas, Miguel Angel
Bonivardi, Adrian Lionel
author_role author
author2 Baltanas, Miguel Angel
Bonivardi, Adrian Lionel
author2_role author
author
dc.subject.none.fl_str_mv Gallia Promotion
Co2 Recycling
Copper Gallate
Cu+
Ftir
topic Gallia Promotion
Co2 Recycling
Copper Gallate
Cu+
Ftir
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 impact of the interaction between copper and gallia was studied over a selected set of supported(2 wt%) Cu on Ga2O3, ZrO2and Ga2O3–ZrO2catalysts, which were employed in the methanol synthesisfrom CO2and CO mixtures. The higher initial rate of methanol production on the Cu/ZrO2catalyst wasaccompanied by an activity loss of ~35% after 5 h on stream. However, all the gallated catalysts werenotoriously more stable (and selective) than copper on pure zirconia was. Temperature-programmedreduction in H2, X-ray photoelectron spectroscopy and infrared spectroscopy of adsorbed CO resultsproved that temperatures higher than 553 K are needed to completely reduced Cu2+to metallic Cu parti-cles in the gallia-containing catalysts, which was attributed to the formation of a CuGa2O4nanospinel. Theternary Cu–Ga2O3–ZrO2catalysts showed an intermediate behavior, quite dependent on the preparationprotocol, which emphasizes the need for tuning the degree of Cu–oxides interactions. It is suggested thatjust a moderate copper–gallia interaction is beneficial in terms of both activity and selectivity but, also,that a detrimental loss of ‘active’ copper should be avoided.
Fil: Sanguineti, Pamela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
description The impact of the interaction between copper and gallia was studied over a selected set of supported(2 wt%) Cu on Ga2O3, ZrO2and Ga2O3–ZrO2catalysts, which were employed in the methanol synthesisfrom CO2and CO mixtures. The higher initial rate of methanol production on the Cu/ZrO2catalyst wasaccompanied by an activity loss of ~35% after 5 h on stream. However, all the gallated catalysts werenotoriously more stable (and selective) than copper on pure zirconia was. Temperature-programmedreduction in H2, X-ray photoelectron spectroscopy and infrared spectroscopy of adsorbed CO resultsproved that temperatures higher than 553 K are needed to completely reduced Cu2+to metallic Cu parti-cles in the gallia-containing catalysts, which was attributed to the formation of a CuGa2O4nanospinel. Theternary Cu–Ga2O3–ZrO2catalysts showed an intermediate behavior, quite dependent on the preparationprotocol, which emphasizes the need for tuning the degree of Cu–oxides interactions. It is suggested thatjust a moderate copper–gallia interaction is beneficial in terms of both activity and selectivity but, also,that a detrimental loss of ‘active’ copper should be avoided.
publishDate 2015
dc.date.none.fl_str_mv 2015-09
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/11336/10041
Sanguineti, Pamela Beatriz; Baltanas, Miguel Angel; Bonivardi, Adrian Lionel; Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation; Elsevier Science; Applied Catalysis A: General; 504; 9-2015; 476-481
0926-860X
url http://hdl.handle.net/11336/10041
identifier_str_mv Sanguineti, Pamela Beatriz; Baltanas, Miguel Angel; Bonivardi, Adrian Lionel; Copper-gallia interaction in Cu-Ga2O3-ZrO2 catalysts for methanol production from carbon oxide(s) hydrogenation; Elsevier Science; Applied Catalysis A: General; 504; 9-2015; 476-481
0926-860X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2014.11.021
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X14007273
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 12.982451

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