Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts

The hydrogenation of CO2 was investigated on Ga-promoted Pd/SiO2 catalysts. A 500-fold turnover rate enhancement and an increase of the selectivity to methanol synthesis, up to 70%, were found under pseudo stationary state conditions (523 K and 3 MPa) using the promoted materials as compared to Pd/S...

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Autores: Bonivardi, Adrian Lionel, Chiavassa, Dante Luis, Querini, Carlos Alberto, Baltanas, Miguel Angel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2000
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/27677
Acceso en línea:http://hdl.handle.net/11336/27677
Access Level:acceso abierto
Palabra clave:Methanol Synthesis
Carbon Dioxide
Palladium
Silica
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
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spelling Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalystsBonivardi, Adrian LionelChiavassa, Dante LuisQuerini, Carlos AlbertoBaltanas, Miguel AngelMethanol SynthesisCarbon DioxidePalladiumSilicahttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The hydrogenation of CO2 was investigated on Ga-promoted Pd/SiO2 catalysts. A 500-fold turnover rate enhancement and an increase of the selectivity to methanol synthesis, up to 70%, were found under pseudo stationary state conditions (523 K and 3 MPa) using the promoted materials as compared to Pd/SiO2. Based on apparent activation energy values and product distribution, a reaction pathway to CH3OH involving intermediates which are intrinsically associated to adsorbed CO2 is proposed. It is concluded that the Ga-Pd interaction, proved through DRS and TPR experiments, brings the catalytic performance of these Ga-Pd/silica materials close to that of the traditional Cu/ZnO-based catalyst for methanol synthesis.Fil: Bonivardi, Adrian Lionel. 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: Chiavassa, Dante Luis. 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: Querini, Carlos Alberto. Universidad Nacional del Litoral; ArgentinaFil: 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; ArgentinaElsevier Science2000-12info: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/11336/27677Bonivardi, Adrian Lionel; Chiavassa, Dante Luis; Querini, Carlos Alberto; Baltanas, Miguel Angel; Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts; Elsevier Science; Studies In Surface Science And Catalysis; 130; 12-2000; 3747-37520167-2991CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0167-2991(00)80606-0info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:56:04Zoai:ri.conicet.gov.ar:11336/27677instacron: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:34982024-05-08 13:56:04.541CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts
title Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts
spellingShingle Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts
Bonivardi, Adrian Lionel
Methanol Synthesis
Carbon Dioxide
Palladium
Silica
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
title_short Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts
title_full Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts
title_fullStr Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts
title_full_unstemmed Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts
title_sort Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts
dc.creator.none.fl_str_mv Bonivardi, Adrian Lionel
Chiavassa, Dante Luis
Querini, Carlos Alberto
Baltanas, Miguel Angel
author Bonivardi, Adrian Lionel
author_facet Bonivardi, Adrian Lionel
Chiavassa, Dante Luis
Querini, Carlos Alberto
Baltanas, Miguel Angel
author_role author
author2 Chiavassa, Dante Luis
Querini, Carlos Alberto
Baltanas, Miguel Angel
author2_role author
author
author
dc.subject.none.fl_str_mv Methanol Synthesis
Carbon Dioxide
Palladium
Silica
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
topic Methanol Synthesis
Carbon Dioxide
Palladium
Silica
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
description The hydrogenation of CO2 was investigated on Ga-promoted Pd/SiO2 catalysts. A 500-fold turnover rate enhancement and an increase of the selectivity to methanol synthesis, up to 70%, were found under pseudo stationary state conditions (523 K and 3 MPa) using the promoted materials as compared to Pd/SiO2. Based on apparent activation energy values and product distribution, a reaction pathway to CH3OH involving intermediates which are intrinsically associated to adsorbed CO2 is proposed. It is concluded that the Ga-Pd interaction, proved through DRS and TPR experiments, brings the catalytic performance of these Ga-Pd/silica materials close to that of the traditional Cu/ZnO-based catalyst for methanol synthesis.
publishDate 2000
dc.date.none.fl_str_mv 2000-12
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/11336/27677
Bonivardi, Adrian Lionel; Chiavassa, Dante Luis; Querini, Carlos Alberto; Baltanas, Miguel Angel; Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts; Elsevier Science; Studies In Surface Science And Catalysis; 130; 12-2000; 3747-3752
0167-2991
CONICET Digital
CONICET
url http://hdl.handle.net/11336/27677
identifier_str_mv Bonivardi, Adrian Lionel; Chiavassa, Dante Luis; Querini, Carlos Alberto; Baltanas, Miguel Angel; Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts; Elsevier Science; Studies In Surface Science And Catalysis; 130; 12-2000; 3747-3752
0167-2991
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/S0167-2991(00)80606-0
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 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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15,812429

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