Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior

Autores
Cuello, Natalia Inés; Elías, Verónica Rita; Rodriguez Torres, Claudia Elena; Crivello, Mónica Elsie; Oliva, Marcos Iván; Eimer, Griselda Alejandra
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
MCM-41 type mesoporous silica materials were synthesized and modified with different iron loadings by the wet impregnation method and exhaustively characterized by different instrumental techniques, including XRD, TEM, N2 adsorption, UV–Vis DRS, XPS, TPR and Mössbauer spectroscopy. The relation between the iron loadings in the samples and their structural, textural and magnetic properties were studied. The curves of room temperature magnetization vs. field were measured using a maximum magnetic applied field of l0Ha = 1 T. Depending on the dispersion and size of the different iron species, the nanocomposites showed different magnetic behaviors. Thus, a predominant superparamagnetic behavior was found for the samples with the lower iron loadings; this feature was assigned to oxide species finely dispersed such as the oligonuclear (FeO)n clusters and nanoparticles, both of very small size and located preferably inside the channels. Meanwhile, a lineal behavior was observed for the samples with the higher Fe loadings, attributed to the hematite nanoparticles of larger size, located on the external surface.
Fil: Cuello, Natalia Inés. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
Fil: Elías, Verónica Rita. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
Fil: Rodriguez Torres, Claudia Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina
Fil: Crivello, Mónica Elsie. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
Fil: Oliva, Marcos Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Física "Enrique Gaviola"; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Eimer, Griselda Alejandra. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
Materia
Fe/Mcm-41
Iron Speciation
Magnetic Properties
Structural Characterization
Spectroscopic Characterization
Superparamagnetism
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/10993
Acceder
id CONICETDig_7c194c4973e7d542dc24450165636fbc
oai_identifier_str oai:ri.conicet.gov.ar:11336/10993
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Development of iron modified MCM-41 as promising nano-composites with specific magnetic behaviorCuello, Natalia InésElías, Verónica RitaRodriguez Torres, Claudia ElenaCrivello, Mónica ElsieOliva, Marcos IvánEimer, Griselda AlejandraFe/Mcm-41Iron SpeciationMagnetic PropertiesStructural CharacterizationSpectroscopic CharacterizationSuperparamagnetismhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2MCM-41 type mesoporous silica materials were synthesized and modified with different iron loadings by the wet impregnation method and exhaustively characterized by different instrumental techniques, including XRD, TEM, N2 adsorption, UV–Vis DRS, XPS, TPR and Mössbauer spectroscopy. The relation between the iron loadings in the samples and their structural, textural and magnetic properties were studied. The curves of room temperature magnetization vs. field were measured using a maximum magnetic applied field of l0Ha = 1 T. Depending on the dispersion and size of the different iron species, the nanocomposites showed different magnetic behaviors. Thus, a predominant superparamagnetic behavior was found for the samples with the lower iron loadings; this feature was assigned to oxide species finely dispersed such as the oligonuclear (FeO)n clusters and nanoparticles, both of very small size and located preferably inside the channels. Meanwhile, a lineal behavior was observed for the samples with the higher Fe loadings, attributed to the hematite nanoparticles of larger size, located on the external surface.Fil: Cuello, Natalia Inés. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; ArgentinaFil: Elías, Verónica Rita. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; ArgentinaFil: Rodriguez Torres, Claudia Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; ArgentinaFil: Crivello, Mónica Elsie. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; ArgentinaFil: Oliva, Marcos Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Física "Enrique Gaviola"; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: Eimer, Griselda Alejandra. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; ArgentinaElsevier Inc2015-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10993Cuello, Natalia Inés; Elías, Verónica Rita; Rodriguez Torres, Claudia Elena; Crivello, Mónica Elsie; Oliva, Marcos Iván; et al.; Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior; Elsevier Inc; Microporous And Mesoporous Materials; 203; 2-2015; 106-1151387-1811enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.micromeso.2014.10.005info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1387181114005794info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:07:35Zoai:ri.conicet.gov.ar:11336/10993instacron: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:34982025-10-22 12:07:35.513CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior
title Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior
spellingShingle Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior
Cuello, Natalia Inés
Fe/Mcm-41
Iron Speciation
Magnetic Properties
Structural Characterization
Spectroscopic Characterization
Superparamagnetism
title_short Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior
title_full Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior
title_fullStr Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior
title_full_unstemmed Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior
title_sort Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior
dc.creator.none.fl_str_mv Cuello, Natalia Inés
Elías, Verónica Rita
Rodriguez Torres, Claudia Elena
Crivello, Mónica Elsie
Oliva, Marcos Iván
Eimer, Griselda Alejandra
author Cuello, Natalia Inés
author_facet Cuello, Natalia Inés
Elías, Verónica Rita
Rodriguez Torres, Claudia Elena
Crivello, Mónica Elsie
Oliva, Marcos Iván
Eimer, Griselda Alejandra
author_role author
author2 Elías, Verónica Rita
Rodriguez Torres, Claudia Elena
Crivello, Mónica Elsie
Oliva, Marcos Iván
Eimer, Griselda Alejandra
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Fe/Mcm-41
Iron Speciation
Magnetic Properties
Structural Characterization
Spectroscopic Characterization
Superparamagnetism
topic Fe/Mcm-41
Iron Speciation
Magnetic Properties
Structural Characterization
Spectroscopic Characterization
Superparamagnetism
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv MCM-41 type mesoporous silica materials were synthesized and modified with different iron loadings by the wet impregnation method and exhaustively characterized by different instrumental techniques, including XRD, TEM, N2 adsorption, UV–Vis DRS, XPS, TPR and Mössbauer spectroscopy. The relation between the iron loadings in the samples and their structural, textural and magnetic properties were studied. The curves of room temperature magnetization vs. field were measured using a maximum magnetic applied field of l0Ha = 1 T. Depending on the dispersion and size of the different iron species, the nanocomposites showed different magnetic behaviors. Thus, a predominant superparamagnetic behavior was found for the samples with the lower iron loadings; this feature was assigned to oxide species finely dispersed such as the oligonuclear (FeO)n clusters and nanoparticles, both of very small size and located preferably inside the channels. Meanwhile, a lineal behavior was observed for the samples with the higher Fe loadings, attributed to the hematite nanoparticles of larger size, located on the external surface.
Fil: Cuello, Natalia Inés. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
Fil: Elías, Verónica Rita. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
Fil: Rodriguez Torres, Claudia Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina
Fil: Crivello, Mónica Elsie. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
Fil: Oliva, Marcos Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Física "Enrique Gaviola"; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Eimer, Griselda Alejandra. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; Argentina
description MCM-41 type mesoporous silica materials were synthesized and modified with different iron loadings by the wet impregnation method and exhaustively characterized by different instrumental techniques, including XRD, TEM, N2 adsorption, UV–Vis DRS, XPS, TPR and Mössbauer spectroscopy. The relation between the iron loadings in the samples and their structural, textural and magnetic properties were studied. The curves of room temperature magnetization vs. field were measured using a maximum magnetic applied field of l0Ha = 1 T. Depending on the dispersion and size of the different iron species, the nanocomposites showed different magnetic behaviors. Thus, a predominant superparamagnetic behavior was found for the samples with the lower iron loadings; this feature was assigned to oxide species finely dispersed such as the oligonuclear (FeO)n clusters and nanoparticles, both of very small size and located preferably inside the channels. Meanwhile, a lineal behavior was observed for the samples with the higher Fe loadings, attributed to the hematite nanoparticles of larger size, located on the external surface.
publishDate 2015
dc.date.none.fl_str_mv 2015-02
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/11336/10993
Cuello, Natalia Inés; Elías, Verónica Rita; Rodriguez Torres, Claudia Elena; Crivello, Mónica Elsie; Oliva, Marcos Iván; et al.; Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior; Elsevier Inc; Microporous And Mesoporous Materials; 203; 2-2015; 106-115
1387-1811
url http://hdl.handle.net/11336/10993
identifier_str_mv Cuello, Natalia Inés; Elías, Verónica Rita; Rodriguez Torres, Claudia Elena; Crivello, Mónica Elsie; Oliva, Marcos Iván; et al.; Development of iron modified MCM-41 as promising nano-composites with specific magnetic behavior; Elsevier Inc; Microporous And Mesoporous Materials; 203; 2-2015; 106-115
1387-1811
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.micromeso.2014.10.005
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1387181114005794
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Inc
publisher.none.fl_str_mv Elsevier Inc
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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score 12.982451

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