About: Structure of Iron Oxide Nanoparticles Studied by Fe-57 NMR

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. (en)
Title	Structure of Iron Oxide Nanoparticles Studied by Fe-57 NMR Structure of Iron Oxide Nanoparticles Studied by Fe-57 NMR (en)
skos:prefLabel	Structure of Iron Oxide Nanoparticles Studied by Fe-57 NMR Structure of Iron Oxide Nanoparticles Studied by Fe-57 NMR (en)
skos:notation	RIV/00216208:11320/14:10290739!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Štěpánková, Helena Chlan, Vojtěch Řezníček, Richard Křišťan, Petr
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	47934
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10290739
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	NMR; magnetite; Verwey transition (en)
http://linked.open.../riv/klicoveSlovo	NMR magnetite Verwey transition
http://linked.open...odStatuVydavatele	PL - Polská republika
http://linked.open...ontrolniKodProRIV	[7612A9097BC1]
http://linked.open...i/riv/nazevZdroje	Acta Physica Polonica A
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	126
http://linked.open...iv/tvurceVysledku	Štěpánková, Helena Chlan, Vojtěch Křišťan, Petr Řezníček, Richard Goernert, P. Payer, P.
http://linked.open...ain/vavai/riv/wos	000339833100066
issn	0587-4246
number of pages	2 (xsd:int)
http://bibframe.org/vocab/doi	10.12693/APhysPolA.126.138
http://localhost/t...ganizacniJednotka	11320

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