Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route

Autores
Mazan, Mariano Osvaldo; Craievich, Aldo F.; Halac, Emilia Beatriz; Fantini, Márcia C. A.; Lamas, Diego Germán; Larrondo, Susana Adelina
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cerium-based materials were intensively studied in last years because of their high oxygen storage capacity (OSC) associated to the reversible Ce4+ Ce3+ process and their properties closely related to the defect chemistry that could be adjusted by adequate selection of dopant. Fe3+ cation, due to its effective ionic radius smaller than that of Ce4+, is an interesting doping agent. In this work we present the synthesis and characterization of Ce(1-x)FexO2-δ mixed oxides (00.15, not observable in X-ray diffraction experiments. The solidsolutions exhibit high porosity and specific surface area, with nearly 10% of pore volume in the micropore size range, making these materials potentially useful for applications in catalysis.
Fil: Mazan, Mariano Osvaldo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Ingeniería Química; Argentina.
Fil: Craievich, Aldo F.. Universidade de Sao Paulo; Brasil
Fil: Halac, Emilia Beatriz. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Fantini, Márcia C. A.. Universidade de Sao Paulo; Brasil
Fil: Lamas, Diego Germán. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Larrondo, Susana Adelina. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina
Fuente
Ceramics International. 2015, 41(10): 13721-13730
http://doi.org/10.1016/j.ceramint.2015.08.032
Materia
CITRATE SYNTHESIS
IRON DOPED CERIA
SCANNING ELECTRON MICROSCOPY
X-RAY DIFFRACTION
RAMAN SPECTROSCOPY
CIENCIAS QUÍMICAS
CIENCIAS NATURALES Y EXACTAS
Nivel de accesibilidad
acceso restringido
Condiciones de uso
https://s100.copyright.com/AppDispatchServlet?publisherName=ELS&contentID=S0272884215015576&orderBeanReset=true
Repositorio
Repositorio Institucional (UNSAM)
Institución
Universidad Nacional de General San Martín
OAI Identificador
oai:ri.unsam.edu.ar:123456789/950
Acceder
id RIUNSAM_34c1b98b4055f6f0affd5c768cae1dac
oai_identifier_str oai:ri.unsam.edu.ar:123456789/950
network_acronym_str RIUNSAM
repository_id_str s
network_name_str Repositorio Institucional (UNSAM)
spelling Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate routeMazan, Mariano OsvaldoCraievich, Aldo F.Halac, Emilia BeatrizFantini, Márcia C. A.Lamas, Diego GermánLarrondo, Susana AdelinaCITRATE SYNTHESISIRON DOPED CERIASCANNING ELECTRON MICROSCOPYX-RAY DIFFRACTIONRAMAN SPECTROSCOPYCIENCIAS QUÍMICASCIENCIAS NATURALES Y EXACTASCerium-based materials were intensively studied in last years because of their high oxygen storage capacity (OSC) associated to the reversible Ce4+ Ce3+ process and their properties closely related to the defect chemistry that could be adjusted by adequate selection of dopant. Fe3+ cation, due to its effective ionic radius smaller than that of Ce4+, is an interesting doping agent. In this work we present the synthesis and characterization of Ce(1-x)FexO2-δ mixed oxides (0<x<1) synthesized by the so named ?citrate method?. Our X-ray diffraction results suggest a rather strong dependence of lattice parameter on nanocrystal size, while Raman spectroscopy evidenced the formation of a small volume fraction of hematite clusters in samples with relatively high iron content, x>0.15, not observable in X-ray diffraction experiments. The solidsolutions exhibit high porosity and specific surface area, with nearly 10% of pore volume in the micropore size range, making these materials potentially useful for applications in catalysis.Fil: Mazan, Mariano Osvaldo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Ingeniería Química; Argentina.Fil: Craievich, Aldo F.. Universidade de Sao Paulo; BrasilFil: Halac, Emilia Beatriz. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; ArgentinaFil: Fantini, Márcia C. A.. Universidade de Sao Paulo; BrasilFil: Lamas, Diego Germán. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; ArgentinaFil: Larrondo, Susana Adelina. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; ArgentinaElsevier2015-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfpp. 13721-13730application/pdfMazan, M. O.; Craievich, A. F.; Halac, E. B.; Fantini, M. C. A.; Lamas, D. G. y Larrondo, S. A. (2015). Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route. En: Ceramics International. Elsevier. 41(10): 13721-13730ISSN 0272-8842Ceramics International_2015_41_10_13721-13730https://ri.unsam.edu.ar/handle/123456789/950Ceramics International. 2015, 41(10): 13721-13730http://doi.org/10.1016/j.ceramint.2015.08.032reponame:Repositorio Institucional (UNSAM)instname:Universidad Nacional de General San Martínenginfo:eu-repo/semantics/restrictedAccesshttps://s100.copyright.com/AppDispatchServlet?publisherName=ELS&contentID=S0272884215015576&orderBeanReset=trueCopyright © 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.2025-09-29T14:30:20Zoai:ri.unsam.edu.ar:123456789/950instacron:UNSAMInstitucionalhttp://ri.unsam.edu.arUniversidad públicaNo correspondehttp://ri.unsam.edu.ar/oai/lpastran@unsam.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:s2025-09-29 14:31:15.486Repositorio Institucional (UNSAM) - Universidad Nacional de General San Martínfalse
dc.title.none.fl_str_mv Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route
title Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route
spellingShingle Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route
Mazan, Mariano Osvaldo
CITRATE SYNTHESIS
IRON DOPED CERIA
SCANNING ELECTRON MICROSCOPY
X-RAY DIFFRACTION
RAMAN SPECTROSCOPY
CIENCIAS QUÍMICAS
CIENCIAS NATURALES Y EXACTAS
title_short Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route
title_full Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route
title_fullStr Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route
title_full_unstemmed Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route
title_sort Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route
dc.creator.none.fl_str_mv Mazan, Mariano Osvaldo
Craievich, Aldo F.
Halac, Emilia Beatriz
Fantini, Márcia C. A.
Lamas, Diego Germán
Larrondo, Susana Adelina
author Mazan, Mariano Osvaldo
author_facet Mazan, Mariano Osvaldo
Craievich, Aldo F.
Halac, Emilia Beatriz
Fantini, Márcia C. A.
Lamas, Diego Germán
Larrondo, Susana Adelina
author_role author
author2 Craievich, Aldo F.
Halac, Emilia Beatriz
Fantini, Márcia C. A.
Lamas, Diego Germán
Larrondo, Susana Adelina
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CITRATE SYNTHESIS
IRON DOPED CERIA
SCANNING ELECTRON MICROSCOPY
X-RAY DIFFRACTION
RAMAN SPECTROSCOPY
CIENCIAS QUÍMICAS
CIENCIAS NATURALES Y EXACTAS
topic CITRATE SYNTHESIS
IRON DOPED CERIA
SCANNING ELECTRON MICROSCOPY
X-RAY DIFFRACTION
RAMAN SPECTROSCOPY
CIENCIAS QUÍMICAS
CIENCIAS NATURALES Y EXACTAS
dc.description.none.fl_txt_mv Cerium-based materials were intensively studied in last years because of their high oxygen storage capacity (OSC) associated to the reversible Ce4+ Ce3+ process and their properties closely related to the defect chemistry that could be adjusted by adequate selection of dopant. Fe3+ cation, due to its effective ionic radius smaller than that of Ce4+, is an interesting doping agent. In this work we present the synthesis and characterization of Ce(1-x)FexO2-δ mixed oxides (0<x<1) synthesized by the so named ?citrate method?. Our X-ray diffraction results suggest a rather strong dependence of lattice parameter on nanocrystal size, while Raman spectroscopy evidenced the formation of a small volume fraction of hematite clusters in samples with relatively high iron content, x>0.15, not observable in X-ray diffraction experiments. The solidsolutions exhibit high porosity and specific surface area, with nearly 10% of pore volume in the micropore size range, making these materials potentially useful for applications in catalysis.
Fil: Mazan, Mariano Osvaldo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Ingeniería Química; Argentina.
Fil: Craievich, Aldo F.. Universidade de Sao Paulo; Brasil
Fil: Halac, Emilia Beatriz. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Fantini, Márcia C. A.. Universidade de Sao Paulo; Brasil
Fil: Lamas, Diego Germán. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Larrondo, Susana Adelina. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina
description Cerium-based materials were intensively studied in last years because of their high oxygen storage capacity (OSC) associated to the reversible Ce4+ Ce3+ process and their properties closely related to the defect chemistry that could be adjusted by adequate selection of dopant. Fe3+ cation, due to its effective ionic radius smaller than that of Ce4+, is an interesting doping agent. In this work we present the synthesis and characterization of Ce(1-x)FexO2-δ mixed oxides (0<x<1) synthesized by the so named ?citrate method?. Our X-ray diffraction results suggest a rather strong dependence of lattice parameter on nanocrystal size, while Raman spectroscopy evidenced the formation of a small volume fraction of hematite clusters in samples with relatively high iron content, x>0.15, not observable in X-ray diffraction experiments. The solidsolutions exhibit high porosity and specific surface area, with nearly 10% of pore volume in the micropore size range, making these materials potentially useful for applications in catalysis.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
status_str publishedVersion
format article
dc.identifier.none.fl_str_mv Mazan, M. O.; Craievich, A. F.; Halac, E. B.; Fantini, M. C. A.; Lamas, D. G. y Larrondo, S. A. (2015). Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route. En: Ceramics International. Elsevier. 41(10): 13721-13730
ISSN 0272-8842
Ceramics International_2015_41_10_13721-13730
https://ri.unsam.edu.ar/handle/123456789/950
identifier_str_mv Mazan, M. O.; Craievich, A. F.; Halac, E. B.; Fantini, M. C. A.; Lamas, D. G. y Larrondo, S. A. (2015). Structural and morphological properties of Ce(1−x)FexO2−δ synthesized by citrate route. En: Ceramics International. Elsevier. 41(10): 13721-13730
ISSN 0272-8842
Ceramics International_2015_41_10_13721-13730
url https://ri.unsam.edu.ar/handle/123456789/950
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
https://s100.copyright.com/AppDispatchServlet?publisherName=ELS&contentID=S0272884215015576&orderBeanReset=true
Copyright © 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv https://s100.copyright.com/AppDispatchServlet?publisherName=ELS&contentID=S0272884215015576&orderBeanReset=true
Copyright © 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
dc.format.none.fl_str_mv application/pdf
pp. 13721-13730
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Ceramics International. 2015, 41(10): 13721-13730
http://doi.org/10.1016/j.ceramint.2015.08.032
reponame:Repositorio Institucional (UNSAM)
instname:Universidad Nacional de General San Martín
reponame_str Repositorio Institucional (UNSAM)
collection Repositorio Institucional (UNSAM)
instname_str Universidad Nacional de General San Martín
repository.name.fl_str_mv Repositorio Institucional (UNSAM) - Universidad Nacional de General San Martín
repository.mail.fl_str_mv lpastran@unsam.edu.ar
_version_ 1844621916058419200
score 12.559606

Publicaciones similares