Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides

Autores
Finos, Gisela; Collins, Sebastián Enrique; Blanco, Ginesa; Del Rio, Eloy; Cíes, José María; Bernal, Serafín; Bonivardi, Adrian Lionel
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In order to modified the acid-base properties of pure cerium dioxide, a series of ceria-based oxides doped with gallium(III) cations (from 5 to 50% mol/mol of Ga) was prepared by co-precipitation in basic aqueous solution followed by calcination at 773 K. N 2 physisorption at 77 K showed that mesoporous materials with surface areas between 75 and 104 m 2/g were obtained. Ga(III) cations were incorporated into the ceria crystal structure up to a concentration close to 20-25% mol/mol of Ga, as revealed by powder X-ray diffraction analysis. Surface basicity was investigated using CO 2 chemisorption by mass spectrometry and in situ infrared spectroscopy. A progressive decrease in the surface basicity in the series of ceria-gallia materials was observed as the Ga content increases. Different carbonate and bicarbonate surface species were identified through their vibrational infrared modes. A remarkable decrease in the surface stability of carbonate species, particularly of the polydentate carbonate groups, was detected, which is correlated to the incorporation of gallium(III) into the ceria lattice.
Fil: Finos, Gisela. 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: Collins, Sebastián Enrique. 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: Blanco, Ginesa. Universidad de Cádiz; España
Fil: Del Rio, Eloy. Universidad de Cádiz; España
Fil: Cíes, José María. Universidad de Cádiz; España
Fil: Bernal, Serafín. Universidad de Cádiz; España
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; Argentina
Materia
Carbonate Species
Cerium Oxide
Gallium Oxide
Infrared Spectroscopy
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:11336/76423
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/76423
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed OxidesFinos, GiselaCollins, Sebastián EnriqueBlanco, GinesaDel Rio, EloyCíes, José MaríaBernal, SerafínBonivardi, Adrian LionelCarbonate SpeciesCerium OxideGallium OxideInfrared Spectroscopyhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In order to modified the acid-base properties of pure cerium dioxide, a series of ceria-based oxides doped with gallium(III) cations (from 5 to 50% mol/mol of Ga) was prepared by co-precipitation in basic aqueous solution followed by calcination at 773 K. N 2 physisorption at 77 K showed that mesoporous materials with surface areas between 75 and 104 m 2/g were obtained. Ga(III) cations were incorporated into the ceria crystal structure up to a concentration close to 20-25% mol/mol of Ga, as revealed by powder X-ray diffraction analysis. Surface basicity was investigated using CO 2 chemisorption by mass spectrometry and in situ infrared spectroscopy. A progressive decrease in the surface basicity in the series of ceria-gallia materials was observed as the Ga content increases. Different carbonate and bicarbonate surface species were identified through their vibrational infrared modes. A remarkable decrease in the surface stability of carbonate species, particularly of the polydentate carbonate groups, was detected, which is correlated to the incorporation of gallium(III) into the ceria lattice.Fil: Finos, Gisela. 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: Collins, Sebastián Enrique. 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: Blanco, Ginesa. Universidad de Cádiz; EspañaFil: Del Rio, Eloy. Universidad de Cádiz; EspañaFil: Cíes, José María. Universidad de Cádiz; EspañaFil: Bernal, Serafín. Universidad de Cádiz; EspañaFil: 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; ArgentinaElsevier Science2012-01info: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/11336/76423Finos, Gisela; Collins, Sebastián Enrique; Blanco, Ginesa; Del Rio, Eloy; Cíes, José María; et al.; Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides; Elsevier Science; Catalysis Today; 180; 1; 1-2012; 9-180920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2011.04.054info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:21:56Zoai:ri.conicet.gov.ar:11336/76423instacron: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 15:21:57.057CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides
title Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides
spellingShingle Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides
Finos, Gisela
Carbonate Species
Cerium Oxide
Gallium Oxide
Infrared Spectroscopy
title_short Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides
title_full Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides
title_fullStr Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides
title_full_unstemmed Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides
title_sort Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides
dc.creator.none.fl_str_mv Finos, Gisela
Collins, Sebastián Enrique
Blanco, Ginesa
Del Rio, Eloy
Cíes, José María
Bernal, Serafín
Bonivardi, Adrian Lionel
author Finos, Gisela
author_facet Finos, Gisela
Collins, Sebastián Enrique
Blanco, Ginesa
Del Rio, Eloy
Cíes, José María
Bernal, Serafín
Bonivardi, Adrian Lionel
author_role author
author2 Collins, Sebastián Enrique
Blanco, Ginesa
Del Rio, Eloy
Cíes, José María
Bernal, Serafín
Bonivardi, Adrian Lionel
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Carbonate Species
Cerium Oxide
Gallium Oxide
Infrared Spectroscopy
topic Carbonate Species
Cerium Oxide
Gallium Oxide
Infrared Spectroscopy
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In order to modified the acid-base properties of pure cerium dioxide, a series of ceria-based oxides doped with gallium(III) cations (from 5 to 50% mol/mol of Ga) was prepared by co-precipitation in basic aqueous solution followed by calcination at 773 K. N 2 physisorption at 77 K showed that mesoporous materials with surface areas between 75 and 104 m 2/g were obtained. Ga(III) cations were incorporated into the ceria crystal structure up to a concentration close to 20-25% mol/mol of Ga, as revealed by powder X-ray diffraction analysis. Surface basicity was investigated using CO 2 chemisorption by mass spectrometry and in situ infrared spectroscopy. A progressive decrease in the surface basicity in the series of ceria-gallia materials was observed as the Ga content increases. Different carbonate and bicarbonate surface species were identified through their vibrational infrared modes. A remarkable decrease in the surface stability of carbonate species, particularly of the polydentate carbonate groups, was detected, which is correlated to the incorporation of gallium(III) into the ceria lattice.
Fil: Finos, Gisela. 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: Collins, Sebastián Enrique. 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: Blanco, Ginesa. Universidad de Cádiz; España
Fil: Del Rio, Eloy. Universidad de Cádiz; España
Fil: Cíes, José María. Universidad de Cádiz; España
Fil: Bernal, Serafín. Universidad de Cádiz; España
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; Argentina
description In order to modified the acid-base properties of pure cerium dioxide, a series of ceria-based oxides doped with gallium(III) cations (from 5 to 50% mol/mol of Ga) was prepared by co-precipitation in basic aqueous solution followed by calcination at 773 K. N 2 physisorption at 77 K showed that mesoporous materials with surface areas between 75 and 104 m 2/g were obtained. Ga(III) cations were incorporated into the ceria crystal structure up to a concentration close to 20-25% mol/mol of Ga, as revealed by powder X-ray diffraction analysis. Surface basicity was investigated using CO 2 chemisorption by mass spectrometry and in situ infrared spectroscopy. A progressive decrease in the surface basicity in the series of ceria-gallia materials was observed as the Ga content increases. Different carbonate and bicarbonate surface species were identified through their vibrational infrared modes. A remarkable decrease in the surface stability of carbonate species, particularly of the polydentate carbonate groups, was detected, which is correlated to the incorporation of gallium(III) into the ceria lattice.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
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/11336/76423
Finos, Gisela; Collins, Sebastián Enrique; Blanco, Ginesa; Del Rio, Eloy; Cíes, José María; et al.; Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides; Elsevier Science; Catalysis Today; 180; 1; 1-2012; 9-18
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/76423
identifier_str_mv Finos, Gisela; Collins, Sebastián Enrique; Blanco, Ginesa; Del Rio, Eloy; Cíes, José María; et al.; Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides; Elsevier Science; Catalysis Today; 180; 1; 1-2012; 9-18
0920-5861
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/j.cattod.2011.04.054
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
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_ 1846083367076888576
score 13.22299

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