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Hydrothermal synthesis, characterization, and magneticproperties of cobalt chromite nanoparticles
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SYSNO ASEP 0433893 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Hydrothermal synthesis, characterization, and magneticproperties of cobalt chromite nanoparticles Author(s) Zákutná, Dominika (FZU-D)
Repko, A. (CZ)
Matulková, I. (CZ)
Nižňanský, Daniel (UACH-T) ORCID, SAI, RID
Ardu, A. (IT)
Cannas, C. (IT)
Mantlíková, Alice (FZU-D) RID
Vejpravová, Jana (FZU-D) RID, ORCIDSource Title Journal of Nanoparticle Research. - : Springer - ISSN 1388-0764
Roč. 16, č. 2 (2014), 1-14Number of pages 14 s. Language eng - English Country NL - Netherlands Keywords cobalt chromite ; hydrothermal method ; nanoparticles ; size effect ; multiferroic materials Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GAP108/10/1250 GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 ; UACH-T - RVO:61388980 UT WOS 000330311000001 EID SCOPUS 84892472362 DOI 10.1007/s11051-014-2251-3 Annotation The CoCr2O4 nanoparticles were prepared by hydrothermal treatment of chromium and cobalt oleates in a mixture of solvents (water and ethanol or pentanol) at various temperatures. The samples were further annealed at the temperatures from 300 to 500 oC. The obtained nanoparticles were character ized using powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), high-resolution TEM, scanning electron microscopy, thermogravimetric analysis, Raman and infrared spectroscopy, and magnetic measurements. The particle size, ranging from 4.4 to 11.5 nm, was determined from the TEM and PXRD methods. The tendency of particles to form the aggregates with the increasing annealing temperature has been observed. The magnetic measurements revealed that the typical features of the CoCr2O4 long-range magnetic order are suppressed in the nanoparticles. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2015
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