Effect of gallia doping on the acid-base and redox properties of ceria
- Autores
- Collins, Sebastián Enrique; Finos, Gisela; Alcántara, Rodrigo; Del Rio, Eloy; Bernal, Serafín; Bonivardi, Adrian Lionel
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This work presents the synthesis and characterization of cerium oxide doped with gallium, which were prepared by co-precipitation in basic aqueous solution followed by calcination at 773 K. XRD and Raman spectroscopy suggested that Ga(III) cations were incorporated into the ceria crystal structure. Moreover, surface Ga-H species were detected by FTIR with a 100 cm-1 downshift of the ν(Ga-H) peak, which indicated that Ga(III) were incorporated onto the surface lattice of the ceria. Results of CO2 and CO chemisoption, as well as, TPR-H2 and TPR-CO, showed that the acid-base (decreased basicity) and redox (enhanced reducibility) properties of the gallium-doped ceria materials were modified as compared with the pure cerium dioxide. The catalytic oxidation of CO was investigated over the oxides.
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: 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: Alcántara, Rodrigo. Universidad de Cádiz; España
Fil: Del Rio, Eloy. 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
-
Acid-Base
Cerium Oxide
Gallium Oxide
Infrared
Redox - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/76381
Ver los metadatos del registro completo
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Effect of gallia doping on the acid-base and redox properties of ceriaCollins, Sebastián EnriqueFinos, GiselaAlcántara, RodrigoDel Rio, EloyBernal, SerafínBonivardi, Adrian LionelAcid-BaseCerium OxideGallium OxideInfraredRedoxhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1This work presents the synthesis and characterization of cerium oxide doped with gallium, which were prepared by co-precipitation in basic aqueous solution followed by calcination at 773 K. XRD and Raman spectroscopy suggested that Ga(III) cations were incorporated into the ceria crystal structure. Moreover, surface Ga-H species were detected by FTIR with a 100 cm-1 downshift of the ν(Ga-H) peak, which indicated that Ga(III) were incorporated onto the surface lattice of the ceria. Results of CO2 and CO chemisoption, as well as, TPR-H2 and TPR-CO, showed that the acid-base (decreased basicity) and redox (enhanced reducibility) properties of the gallium-doped ceria materials were modified as compared with the pure cerium dioxide. The catalytic oxidation of CO was investigated over the oxides.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; ArgentinaFil: 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: Alcántara, Rodrigo. Universidad de Cádiz; EspañaFil: Del Rio, Eloy. 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 Science2010-11info: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/11336/76381Collins, Sebastián Enrique; Finos, Gisela; Alcántara, Rodrigo; Del Rio, Eloy; Bernal, Serafín; et al.; Effect of gallia doping on the acid-base and redox properties of ceria; Elsevier Science; Applied Catalysis A: General; 388; 1-2; 11-2010; 202-2100926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2010.08.050info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:26:09Zoai:ri.conicet.gov.ar:11336/76381instacron: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:34982025-09-29 10:26:09.878CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Effect of gallia doping on the acid-base and redox properties of ceria |
title |
Effect of gallia doping on the acid-base and redox properties of ceria |
spellingShingle |
Effect of gallia doping on the acid-base and redox properties of ceria Collins, Sebastián Enrique Acid-Base Cerium Oxide Gallium Oxide Infrared Redox |
title_short |
Effect of gallia doping on the acid-base and redox properties of ceria |
title_full |
Effect of gallia doping on the acid-base and redox properties of ceria |
title_fullStr |
Effect of gallia doping on the acid-base and redox properties of ceria |
title_full_unstemmed |
Effect of gallia doping on the acid-base and redox properties of ceria |
title_sort |
Effect of gallia doping on the acid-base and redox properties of ceria |
dc.creator.none.fl_str_mv |
Collins, Sebastián Enrique Finos, Gisela Alcántara, Rodrigo Del Rio, Eloy Bernal, Serafín Bonivardi, Adrian Lionel |
author |
Collins, Sebastián Enrique |
author_facet |
Collins, Sebastián Enrique Finos, Gisela Alcántara, Rodrigo Del Rio, Eloy Bernal, Serafín Bonivardi, Adrian Lionel |
author_role |
author |
author2 |
Finos, Gisela Alcántara, Rodrigo Del Rio, Eloy Bernal, Serafín Bonivardi, Adrian Lionel |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Acid-Base Cerium Oxide Gallium Oxide Infrared Redox |
topic |
Acid-Base Cerium Oxide Gallium Oxide Infrared Redox |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
This work presents the synthesis and characterization of cerium oxide doped with gallium, which were prepared by co-precipitation in basic aqueous solution followed by calcination at 773 K. XRD and Raman spectroscopy suggested that Ga(III) cations were incorporated into the ceria crystal structure. Moreover, surface Ga-H species were detected by FTIR with a 100 cm-1 downshift of the ν(Ga-H) peak, which indicated that Ga(III) were incorporated onto the surface lattice of the ceria. Results of CO2 and CO chemisoption, as well as, TPR-H2 and TPR-CO, showed that the acid-base (decreased basicity) and redox (enhanced reducibility) properties of the gallium-doped ceria materials were modified as compared with the pure cerium dioxide. The catalytic oxidation of CO was investigated over the oxides. 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: 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: Alcántara, Rodrigo. Universidad de Cádiz; España Fil: Del Rio, Eloy. 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 |
This work presents the synthesis and characterization of cerium oxide doped with gallium, which were prepared by co-precipitation in basic aqueous solution followed by calcination at 773 K. XRD and Raman spectroscopy suggested that Ga(III) cations were incorporated into the ceria crystal structure. Moreover, surface Ga-H species were detected by FTIR with a 100 cm-1 downshift of the ν(Ga-H) peak, which indicated that Ga(III) were incorporated onto the surface lattice of the ceria. Results of CO2 and CO chemisoption, as well as, TPR-H2 and TPR-CO, showed that the acid-base (decreased basicity) and redox (enhanced reducibility) properties of the gallium-doped ceria materials were modified as compared with the pure cerium dioxide. The catalytic oxidation of CO was investigated over the oxides. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-11 |
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/11336/76381 Collins, Sebastián Enrique; Finos, Gisela; Alcántara, Rodrigo; Del Rio, Eloy; Bernal, Serafín; et al.; Effect of gallia doping on the acid-base and redox properties of ceria; Elsevier Science; Applied Catalysis A: General; 388; 1-2; 11-2010; 202-210 0926-860X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/76381 |
identifier_str_mv |
Collins, Sebastián Enrique; Finos, Gisela; Alcántara, Rodrigo; Del Rio, Eloy; Bernal, Serafín; et al.; Effect of gallia doping on the acid-base and redox properties of ceria; Elsevier Science; Applied Catalysis A: General; 388; 1-2; 11-2010; 202-210 0926-860X 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.apcata.2010.08.050 |
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 |
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1844614262358540288 |
score |
13.070432 |