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Structural, magnetic, dielectric, and electrical properties of NiFe2O4 spinel ferrite nanoparticles prepared by honey-mediated sol-gel combustion

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dc.title Structural, magnetic, dielectric, and electrical properties of NiFe2O4 spinel ferrite nanoparticles prepared by honey-mediated sol-gel combustion en
dc.contributor.author Yadav, Raghvendra Singh
dc.contributor.author Kuřitka, Ivo
dc.contributor.author Vilčáková, Jarmila
dc.contributor.author Havlica, Jaromír
dc.contributor.author Másilko, Jiří
dc.contributor.author Kalina, Lukáš
dc.contributor.author Tkacz, Jakub
dc.contributor.author Enev, Vojtěch
dc.contributor.author Hajdúchová, Miroslava
dc.relation.ispartof Journal of Physics and Chemistry of Solids
dc.identifier.issn 0022-3697 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2017
utb.relation.volume 107
dc.citation.spage 150
dc.citation.epage 161
dc.type article
dc.language.iso en
dc.publisher Pergamon Elsevier Science Ltd.
dc.identifier.doi 10.1016/j.jpcs.2017.04.004
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0022369716311581
dc.subject Dielectric and electrical properties en
dc.subject Magnetic properties en
dc.subject Spinel ferrite en
dc.description.abstract In this study, NiFe2O4 nanoparticles were synthesized using a honey-mediated sol-gel combustion method. The synthesized nanoparticles and samples annealed at 800 °C and 1100 °C were characterized by X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and vibrating sample magnetometry (VSM). XRD and Raman spectroscopy confirmed the formation of a cubic spinel ferrite structure. FE-SEM demonstrated the octahedral morphology of the NiFe2O4 spinel ferrite nanoparticles with sizes ranging from 10 to 70 nm. Quantitative analysis based on XPS suggested a mixed spinel structure comprising NiFe2O4 nanoparticles. XPS analysis determined occupation formulae of (Ni0.21 2+Fe0.44 3+)[Ni0.79 2+Fe1.56 3+]O4 and (Ni0.23 2+Fe0.50 3+)[Ni0.77 2+Fe1.50 3+ ]O4 for the as-prepared NiFe2O4 nanoparticles and those annealed at 1100 °C, respectively. Magnetic measurements showed that the saturation magnetization increased with the crystallite size from 32.3 emu/g (20 nm) to 49.9 emu/g (163 nm), whereas the coercivity decreased with the crystallite size from 162 Oe (20 nm) to 47 Oe (163 nm). Furthermore, the dielectric constant, dielectric loss tangent, and AC conductivity of the NiFe2O4 nanoparticles were dependent on the frequency (1–107 Hz) and grain size. The influence of the grain size was also observed by modulus spectroscopy based on the Cole-Cole plot. © 2017 Elsevier Ltd en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1007148
utb.identifier.obdid 43877021
utb.identifier.scopus 2-s2.0-85017429662
utb.identifier.wok 000401677300022
utb.identifier.coden JPCSA
utb.source j-scopus
dc.date.accessioned 2017-08-01T08:27:20Z
dc.date.available 2017-08-01T08:27:20Z
dc.description.sponsorship LO1504, MŠMT, Ministerstvo Školství, Mládeže a Tělovýchovy
dc.description.sponsorship Ministry of Education, Youth and Sports of the Czech Republic [LO1504]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Yadav, Raghvendra Singh
utb.contributor.internalauthor Kuřitka, Ivo
utb.contributor.internalauthor Vilčáková, Jarmila
utb.fulltext.affiliation Raghvendra Singh Yadav a, , Ivo Kuřitka a , Jarmila Vilcakova a , Jaromir Havlica b , Jiri Masilko b , Lukas Kalina b , Jakub Tkacz b , Vojtěch Enev b , Miroslava Hajdúchová b a Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic b Materials Research Centre, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic ⁎ Corresponding author. E-mail addresses: yadav@cps.utb.cz, raghvendra.nac@gmail.com (R.S. Yadav).
utb.fulltext.dates Received 25 November 2016; Received in revised form 14 February 2017; Accepted 5 April 2017; Available online 08 April 2017
utb.fulltext.sponsorship This study was supported by the Ministry of Education, Youth and Sports of the Czech Republic – Program NPU I (LO1504).
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