Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of ?-Fe2O3 nanoparticles
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00397844" target="_blank" >RIV/68378271:_____/13:00397844 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.jmmm.2013.02.051" target="_blank" >http://dx.doi.org/10.1016/j.jmmm.2013.02.051</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmmm.2013.02.051" target="_blank" >10.1016/j.jmmm.2013.02.051</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of ?-Fe2O3 nanoparticles
Popis výsledku v původním jazyce
Hydrophobic (oleic acid) coating effect on the magnetic properties of maghemite(?-Fe2O3) nanoparticles investigated. Particles prepared by a novel bi-phasic co-precipitation way and their properties compared with uncoated particles and particles preparedby a standard single-phase way. Oleic acid coated particles had a mean diameter of 6nm when the two-phase precipitation procedure was used, compared to 12nm-nanoparticles prepared in a single phase under otherwise identical conditions. Super Quantum Interference Device measurements show superparamagnetism of the nanoparticles, with a saturation magnetization at 4K to be 66.4 emu/g and 89.0 emu/g for the coated nanoparticles obtained by two-and single-phase procedure, respectively. ZFC and FC curves reveal a dramatic shift in the blocking temp.of the coated particles,and a significant change in their anisotropy.Hydrophobic nanoparticles were able to form stable ferrofluids in a range of organic solvents and show good heating rates in a
Název v anglickém jazyce
Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of ?-Fe2O3 nanoparticles
Popis výsledku anglicky
Hydrophobic (oleic acid) coating effect on the magnetic properties of maghemite(?-Fe2O3) nanoparticles investigated. Particles prepared by a novel bi-phasic co-precipitation way and their properties compared with uncoated particles and particles preparedby a standard single-phase way. Oleic acid coated particles had a mean diameter of 6nm when the two-phase precipitation procedure was used, compared to 12nm-nanoparticles prepared in a single phase under otherwise identical conditions. Super Quantum Interference Device measurements show superparamagnetism of the nanoparticles, with a saturation magnetization at 4K to be 66.4 emu/g and 89.0 emu/g for the coated nanoparticles obtained by two-and single-phase procedure, respectively. ZFC and FC curves reveal a dramatic shift in the blocking temp.of the coated particles,and a significant change in their anisotropy.Hydrophobic nanoparticles were able to form stable ferrofluids in a range of organic solvents and show good heating rates in a
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BM - Fyzika pevných látek a magnetismus
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2013
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Magnetism and Magnetic Materials
ISSN
0304-8853
e-ISSN
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Svazek periodika
339
Číslo periodika v rámci svazku
AUG
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
8
Strana od-do
106-113
Kód UT WoS článku
000318904100019
EID výsledku v databázi Scopus
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