Detail publikace

Structural, Cation Distribution, and Magnetic Properties of CoFe2O4 Spinel Ferrite Nanoparticles Synthesized Using a Starch-Assisted Sol–Gel Auto-Combustion Method

YADAV, R. HAVLICA, J. MÁSILKO, J. KALINA, L. HAJDÚCHOVÁ, M. ENEV, V. WASSERBAUER, J. KUŘITKA, I. KOŽÁKOVÁ, Z.

Originální název

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

In this article, cobalt ferrite nanoparticles were synthesized using a starch-assisted sol–gel auto-combustion route. The significant role played by further annealing temperatures of 300, 500, 700, 900 and 1100 C on particle size and magnetic properties of ferrite nanoparticles was explored and reported. The prepared nanoparticles were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Raman spectroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and using a vibrating sample magnetometer. The X-ray diffraction patterns demonstrated single phase formation of CoFe2O4 spinel ferrite nanoparticles at different annealing temperatures. The FESEM analysis indicated a change of particle size and morphology at higher annealing temperature. The change in Raman modes and infrared absorption bands was observed with change of particle size and cation distribution. The highest value of coercivity (1091.2 Oe) and the saturation magnetization (54.76 erg/g) were obtained at annealing temperatures of 900 and 1100 C, respectively. X-ray photoelectron spectroscopy revealed the presence of Co2+ and Fe3+ at octahedral and tetrahedral sites in CoFe2O4 nanoparticles. Further, the cation redistribution with change of particle size was confirmed by X-ray photoelectron spectroscopy.

Klíčová slova

Spinel ferrite, Magnetic property, Cation distribution

Autoři

YADAV, R.; HAVLICA, J.; MÁSILKO, J.; KALINA, L.; HAJDÚCHOVÁ, M.; ENEV, V.; WASSERBAUER, J.; KUŘITKA, I.; KOŽÁKOVÁ, Z.

Rok RIV

2015

Vydáno

4. 2. 2015

Nakladatel

Springer

Místo

New York

ISSN

1557-1947

Periodikum

Journal of Superconductivity and Novel Magnetism

Ročník

2015

Číslo

Stát

Spojené státy americké

Strany od

1851

Strany do

1861

Strany počet

BibTex

@article{BUT113709,
  author="Raghvendra Singh {Yadav} and Jaromír {Havlica} and Jiří {Másilko} and Lukáš {Kalina} and Miroslava {Mončeková} and Vojtěch {Enev} and Jaromír {Wasserbauer} and Ivo {Kuřitka} and Zuzana {Kožáková}",
  title="Structural, Cation Distribution, and Magnetic Properties of CoFe2O4 Spinel Ferrite Nanoparticles Synthesized
Using a Starch-Assisted Sol–Gel Auto-Combustion Method",
  journal="Journal of Superconductivity and Novel Magnetism",
  year="2015",
  volume="2015",
  number="28",
  pages="1851--1861",
  doi="10.1007/s10948-015-2990-0",
  issn="1557-1947"
}