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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/10993
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T10:35:12Zoai: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:34982025-09-29 10:35:12.585CONICET 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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |