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dc.contributor.author
Finos, Gisela
dc.contributor.author
Collins, Sebastián Enrique
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Blanco, Ginesa
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Del Rio, Eloy
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Cíes, José María
dc.contributor.author
Bernal, Serafín
dc.contributor.author
Bonivardi, Adrian Lionel
dc.date.available
2019-05-15T18:50:10Z
dc.date.issued
2012-01
dc.identifier.citation
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
dc.identifier.issn
0920-5861
dc.identifier.uri
http://hdl.handle.net/11336/76423
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Carbonate Species
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Cerium Oxide
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Gallium Oxide
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Infrared Spectroscopy
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Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Infrared Spectroscopic Study of the Carbon Dioxide Adsorption on the Surface of Cerium-Gallium Mixed Oxides
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-05-14T17:48:31Z
dc.journal.volume
180
dc.journal.number
1
dc.journal.pagination
9-18
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
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
dc.description.fil
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
dc.description.fil
Fil: Blanco, Ginesa. Universidad de Cádiz; España
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Fil: Del Rio, Eloy. Universidad de Cádiz; España
dc.description.fil
Fil: Cíes, José María. Universidad de Cádiz; España
dc.description.fil
Fil: Bernal, Serafín. Universidad de Cádiz; España
dc.description.fil
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
dc.journal.title
Catalysis Today
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cattod.2011.04.054
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