The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite

Detalhes bibliográficos
Autor(a) principal: Araújo, José Humberto de
Data de Publicação: 2015
Outros Autores: Lima, Aldenir Cavalcanti, Peres, Ana Paula Da Silva, Torres, Marco Antônio Morales, Medeiros, Susana Nóbrega de, Soares, João Maria, Melo, Daniel Macedo A., Carriço, Artur da Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/29392
Resumo: We report the effect of Sr2+ on the structure, morphology and magnetic properties of CoFe2O4 synthesized by microwave-assisted combustion method. Results from X-ray diffraction and Mössbauer spectroscopy at 298 K suggest the formation of a mixed spinel Sr2+ substituted CoFe2O4. However, secondary phases like CoO, SrCO3 and SrFeO2.96 were also observed. A decrease in the lattice parameter and particle size were observed with the addition of Sr2+. The crystallite size of ferrite phase ranged from 53 to 62 nm. Magnetic studies showed a gradual decrease in the saturation magnetization and remanence with the increase of Sr2+ content, and an increasing value of the coercive field
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spelling Araújo, José Humberto deLima, Aldenir CavalcantiPeres, Ana Paula Da SilvaTorres, Marco Antônio MoralesMedeiros, Susana Nóbrega deSoares, João MariaMelo, Daniel Macedo A.Carriço, Artur da Silva2020-06-30T18:12:39Z2020-06-30T18:12:39Z2015-04-15RODRIGUES, A.P.G.; GOMES, D.K.S.; ARAÚJO, J.H. ; MELO, D.M.A.; OLIVEIRA, N.A.S.; BRAGA, R.M. . Nanoferrites of nickel doped with cobalt: Influence of Co2+ on the structural and magnetic properties. Journal of Magnetism and Magnetic Materials, v. 374, p. 748-754, 2015. Disponível em: https://www.sciencedirect.com/science/article/pii/S0167577X15000798?via%3Dihub#! Acesso em: 25 jun. 2020. https://doi.org/10.1016/j.matlet.2015.01.0660167-577Xhttps://repositorio.ufrn.br/jspui/handle/123456789/2939210.1016/j.matlet.2015.01.066ElsevierAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessCombustion methodNanoparticlesCoFe2O4Mössbauer spectroscopyMagnetic propertiesThe effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferriteinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleWe report the effect of Sr2+ on the structure, morphology and magnetic properties of CoFe2O4 synthesized by microwave-assisted combustion method. Results from X-ray diffraction and Mössbauer spectroscopy at 298 K suggest the formation of a mixed spinel Sr2+ substituted CoFe2O4. However, secondary phases like CoO, SrCO3 and SrFeO2.96 were also observed. A decrease in the lattice parameter and particle size were observed with the addition of Sr2+. The crystallite size of ferrite phase ranged from 53 to 62 nm. Magnetic studies showed a gradual decrease in the saturation magnetization and remanence with the increase of Sr2+ content, and an increasing value of the coercive fieldengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALTheEffectOfSr2þOnTheStructure_Araujo_2015.pdfTheEffectOfSr2þOnTheStructure_Araujo_2015.pdfapplication/pdf823544https://repositorio.ufrn.br/bitstream/123456789/29392/1/TheEffectOfSr2%c3%beOnTheStructure_Araujo_2015.pdf568580a1c88fb77d66fee2a56deab89cMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/29392/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/29392/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52TEXTTheEffectOfSr2þOnTheStructure_Araujo_2015.pdf.txtTheEffectOfSr2þOnTheStructure_Araujo_2015.pdf.txtExtracted texttext/plain14558https://repositorio.ufrn.br/bitstream/123456789/29392/4/TheEffectOfSr2%c3%beOnTheStructure_Araujo_2015.pdf.txtbacb7d831ca359668d3f3eec9bb7eb01MD54THUMBNAILTheEffectOfSr2þOnTheStructure_Araujo_2015.pdf.jpgTheEffectOfSr2þOnTheStructure_Araujo_2015.pdf.jpgGenerated Thumbnailimage/jpeg1775https://repositorio.ufrn.br/bitstream/123456789/29392/5/TheEffectOfSr2%c3%beOnTheStructure_Araujo_2015.pdf.jpgcb0e98000b03ecc0614b1dddd329bc82MD55123456789/293922020-07-05 04:47:23.113oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-07-05T07:47:23Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite
title The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite
spellingShingle The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite
Araújo, José Humberto de
Combustion method
Nanoparticles
CoFe2O4
Mössbauer spectroscopy
Magnetic properties
title_short The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite
title_full The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite
title_fullStr The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite
title_full_unstemmed The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite
title_sort The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite
author Araújo, José Humberto de
author_facet Araújo, José Humberto de
Lima, Aldenir Cavalcanti
Peres, Ana Paula Da Silva
Torres, Marco Antônio Morales
Medeiros, Susana Nóbrega de
Soares, João Maria
Melo, Daniel Macedo A.
Carriço, Artur da Silva
author_role author
author2 Lima, Aldenir Cavalcanti
Peres, Ana Paula Da Silva
Torres, Marco Antônio Morales
Medeiros, Susana Nóbrega de
Soares, João Maria
Melo, Daniel Macedo A.
Carriço, Artur da Silva
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Araújo, José Humberto de
Lima, Aldenir Cavalcanti
Peres, Ana Paula Da Silva
Torres, Marco Antônio Morales
Medeiros, Susana Nóbrega de
Soares, João Maria
Melo, Daniel Macedo A.
Carriço, Artur da Silva
dc.subject.por.fl_str_mv Combustion method
Nanoparticles
CoFe2O4
Mössbauer spectroscopy
Magnetic properties
topic Combustion method
Nanoparticles
CoFe2O4
Mössbauer spectroscopy
Magnetic properties
description We report the effect of Sr2+ on the structure, morphology and magnetic properties of CoFe2O4 synthesized by microwave-assisted combustion method. Results from X-ray diffraction and Mössbauer spectroscopy at 298 K suggest the formation of a mixed spinel Sr2+ substituted CoFe2O4. However, secondary phases like CoO, SrCO3 and SrFeO2.96 were also observed. A decrease in the lattice parameter and particle size were observed with the addition of Sr2+. The crystallite size of ferrite phase ranged from 53 to 62 nm. Magnetic studies showed a gradual decrease in the saturation magnetization and remanence with the increase of Sr2+ content, and an increasing value of the coercive field
publishDate 2015
dc.date.issued.fl_str_mv 2015-04-15
dc.date.accessioned.fl_str_mv 2020-06-30T18:12:39Z
dc.date.available.fl_str_mv 2020-06-30T18:12:39Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.citation.fl_str_mv RODRIGUES, A.P.G.; GOMES, D.K.S.; ARAÚJO, J.H. ; MELO, D.M.A.; OLIVEIRA, N.A.S.; BRAGA, R.M. . Nanoferrites of nickel doped with cobalt: Influence of Co2+ on the structural and magnetic properties. Journal of Magnetism and Magnetic Materials, v. 374, p. 748-754, 2015. Disponível em: https://www.sciencedirect.com/science/article/pii/S0167577X15000798?via%3Dihub#! Acesso em: 25 jun. 2020. https://doi.org/10.1016/j.matlet.2015.01.066
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/29392
dc.identifier.issn.none.fl_str_mv 0167-577X
dc.identifier.doi.none.fl_str_mv 10.1016/j.matlet.2015.01.066
identifier_str_mv RODRIGUES, A.P.G.; GOMES, D.K.S.; ARAÚJO, J.H. ; MELO, D.M.A.; OLIVEIRA, N.A.S.; BRAGA, R.M. . Nanoferrites of nickel doped with cobalt: Influence of Co2+ on the structural and magnetic properties. Journal of Magnetism and Magnetic Materials, v. 374, p. 748-754, 2015. Disponível em: https://www.sciencedirect.com/science/article/pii/S0167577X15000798?via%3Dihub#! Acesso em: 25 jun. 2020. https://doi.org/10.1016/j.matlet.2015.01.066
0167-577X
10.1016/j.matlet.2015.01.066
url https://repositorio.ufrn.br/jspui/handle/123456789/29392
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http://creativecommons.org/licenses/by/3.0/br/
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rights_invalid_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
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dc.publisher.none.fl_str_mv Elsevier
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