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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10290739%21RIV15-MSM-11320___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
In this work we apply nuclear magnetic resonance (NMR) spectroscopy of Fe-57 nuclei for investigation of submicron and nanocrystalline iron oxide systems. The studied iron oxide particles are obtained from ferrous hydroxide gels (prepared from FeCl2 and KOH) by aging at elevated temperatures (90 degrees C) with KNO3 as oxidant. The Fe-57 NAIR spectra of the samples are measured in temperature range 4.2-370 K in a zero external magnetic field. Signals of Fe-57 nuclei assigned to tetrahedral and octahedral iron sites are well resolved. The NMR spectra and their temperature dependences are compared with those of stoichiometric and nonstoichiometric magnetite single crystals, as well as with samples of maghemite. In this work we apply nuclear magnetic resonance (NMR) spectroscopy of Fe-57 nuclei for investigation of submicron and nanocrystalline iron oxide systems. The studied iron oxide particles are obtained from ferrous hydroxide gels (prepared from FeCl2 and KOH) by aging at elevated temperatures (90 degrees C) with KNO3 as oxidant. The Fe-57 NAIR spectra of the samples are measured in temperature range 4.2-370 K in a zero external magnetic field. Signals of Fe-57 nuclei assigned to tetrahedral and octahedral iron sites are well resolved. The NMR spectra and their temperature dependences are compared with those of stoichiometric and nonstoichiometric magnetite single crystals, as well as with samples of maghemite.
dcterms:title
Structure of Iron Oxide Nanoparticles Studied by Fe-57 NMR Structure of Iron Oxide Nanoparticles Studied by Fe-57 NMR
skos:prefLabel
Structure of Iron Oxide Nanoparticles Studied by Fe-57 NMR Structure of Iron Oxide Nanoparticles Studied by Fe-57 NMR
skos:notation
RIV/00216208:11320/14:10290739!RIV15-MSM-11320___
n3:aktivita
n12:S
n3:aktivity
S
n3:cisloPeriodika
1
n3:dodaniDat
n13:2015
n3:domaciTvurceVysledku
n6:4424212 n6:9784624 n6:5770629 n6:5055830
n3:druhVysledku
n7:J
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
47934
n3:idVysledku
RIV/00216208:11320/14:10290739
n3:jazykVysledku
n16:eng
n3:klicovaSlova
NMR; magnetite; Verwey transition
n3:klicoveSlovo
n4:Verwey%20transition n4:magnetite n4:NMR
n3:kodStatuVydavatele
PL - Polská republika
n3:kontrolniKodProRIV
[7612A9097BC1]
n3:nazevZdroje
Acta Physica Polonica A
n3:obor
n9:BM
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n13:2014
n3:svazekPeriodika
126
n3:tvurceVysledku
Goernert, P. Payer, P. Křišťan, Petr Štěpánková, Helena Řezníček, Richard Chlan, Vojtěch
n3:wos
000339833100066
s:issn
0587-4246
s:numberOfPages
2
n18:doi
10.12693/APhysPolA.126.138
n17:organizacniJednotka
11320