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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). |