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YADAV, R. HAVLICA, J. KUŘITKA, I. KOŽÁKOVÁ, Z. MÁSILKO, J. HAJDÚCHOVÁ, M. ENEV, V. WASSERBAUER, J.
Original Title
Effect of Pr3+ Substitution on Structural and Magnetic Properties of CoFe2O4 Spinel Ferrite Nanoparticles
Type
journal article in Web of Science
Language
English
Original Abstract
In this paper, CoFe2−xPrxO4 (x = 0.00 to 0.1 in step of 0.025) nanoparticles were synthesized by starch-assisted sol–gel auto-combustion method. Powder Xray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Raman spectroscopy, infrared spectroscopy and vibrating sample magnetometer (VSM) were employed to characterize these synthesized CoFe2−xPrxO4 nanoparticles. The structural phase purity, crystallite size, and lattice parameter of synthesized CoFe2−xPrxO4 ferrite nanoparticles were estimated from X-ray diffraction studies. XRD patterns reveal the formation of cubic spinel ferrite with the signature of PrFeO3 phase at higher Pr3+ concentration. FE-SEM images endorse that the synthesized nanoparticles are of spherical morphology with size in the range of 5–20 nm. Raman and Fourier transform infrared (FTIR) spectra support the formation of the spinel Co–Fe–Pr ferrite structure in the nanocrystalline form. Room temperature magnetic measurement shows increase in saturation magnetization and coercivity, from 13.96 emu g−1 (x = 0.0) to 19.34 emu g−1 (x = 0.075) and 52.30 Oe (x = 0.0) to 546.94 Oe (x = 0.075), respectively, in CoFe2−xPrxO4 nanoparticles synthesized by starch-assisted sol–gel auto-combustion method.
Keywords
Nanoparticles, Magnetic properties, Starch, Sol–gel auto-combustion method
Authors
YADAV, R.; HAVLICA, J.; KUŘITKA, I.; KOŽÁKOVÁ, Z.; MÁSILKO, J.; HAJDÚCHOVÁ, M.; ENEV, V.; WASSERBAUER, J.
RIV year
2015
Released
12. 10. 2014
Publisher
Springer
Location
New York
ISBN
1557-1947
Periodical
Journal of Superconductivity and Novel Magnetism
Year of study
Number
28
State
United States of America
Pages from
241
Pages to
248
Pages count
8
BibTex
@article{BUT112971, author="Raghvendra Singh {Yadav} and Jaromír {Havlica} and Ivo {Kuřitka} and Zuzana {Kožáková} and Jiří {Másilko} and Miroslava {Mončeková} and Vojtěch {Enev} and Jaromír {Wasserbauer}", title="Effect of Pr3+ Substitution on Structural and Magnetic Properties of CoFe2O4 Spinel Ferrite Nanoparticles", journal="Journal of Superconductivity and Novel Magnetism", year="2014", volume="2015", number="28", pages="241--248", doi="10.1007/s10948-014-2849-9", issn="1557-1947" }