About: Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of γ-Fe2O3 nanoparticles

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About: Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of γ-Fe2O3 nanoparticles Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Hydrophobic (oleic acid) coating effect on the magnetic properties of maghemite(γ-Fe2O3) nanoparticles investigated. Particles prepared by a novel bi-phasic co-precipitation way and their properties compared with uncoated particles and particles prepared by 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 400kHz alternating magnetic field. Hydrophobic (oleic acid) coating effect on the magnetic properties of maghemite(γ-Fe2O3) nanoparticles investigated. Particles prepared by a novel bi-phasic co-precipitation way and their properties compared with uncoated particles and particles prepared by 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 400kHz alternating magnetic field. (en)
Title	Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of γ-Fe2O3 nanoparticles Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of γ-Fe2O3 nanoparticles (en)
skos:prefLabel	Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of γ-Fe2O3 nanoparticles Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of γ-Fe2O3 nanoparticles (en)
skos:notation	RIV/68378271:_____/13:00397844!RIV14-AV0-68378271
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...iv/cisloPeriodika	AUG
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Šantavá, Eva
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	71551
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/13:00397844
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	nanoparticle; maghemite; blocking temperature; superparamagnetism; saturation magnetization (en)
http://linked.open.../riv/klicoveSlovo	blocking temperature saturation magnetization maghemite superparamagnetism nanoparticle
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[4706CB404876]
http://linked.open...i/riv/nazevZdroje	Journal of Magnetism and Magnetic Materials
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	339
http://linked.open...iv/tvurceVysledku	Svoboda, P. Šantavá, Eva Singh, M. Ulbrich, P. Štěpánek, F. Prokopec, V.
http://linked.open...ain/vavai/riv/wos	000318904100019
issn	0304-8853
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.jmmm.2013.02.051

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