About: Magnetic properties of iron catalyst particles in HiPco single wall carbon nanotubes

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have investigated the magnetic response of residual metal catalyst in the raw and super purified HiPco single wall carbon nanotubes (HiPco_raw and HiPco_SPSWCNTs). It has been shown that the residual metal catalyst is in the form of nanoparticles, even in the HiPco_SP SWCNTs that should contain a minimal amount of the metal. Moessbauer spectroscopy of the HiPco_raw SWCNTs proved the catalyst nanoparticles are in the form of Fe3C. Analysis of the synchrotron X-ray diffraction data provided an average diameter of nanoparticles about 1.9 nm. Magnetic studies by means of temperature dependence of magnetization, magnetization isotherms and susceptibility suggested that the nanoparticles obey the behavior of weakly interacting superparamagnetic systems in both samples. We have investigated the magnetic response of residual metal catalyst in the raw and super purified HiPco single wall carbon nanotubes (HiPco_raw and HiPco_SPSWCNTs). It has been shown that the residual metal catalyst is in the form of nanoparticles, even in the HiPco_SP SWCNTs that should contain a minimal amount of the metal. Moessbauer spectroscopy of the HiPco_raw SWCNTs proved the catalyst nanoparticles are in the form of Fe3C. Analysis of the synchrotron X-ray diffraction data provided an average diameter of nanoparticles about 1.9 nm. Magnetic studies by means of temperature dependence of magnetization, magnetization isotherms and susceptibility suggested that the nanoparticles obey the behavior of weakly interacting superparamagnetic systems in both samples. (en)
Title	Magnetic properties of iron catalyst particles in HiPco single wall carbon nanotubes Magnetic properties of iron catalyst particles in HiPco single wall carbon nanotubes (en)
skos:prefLabel	Magnetic properties of iron catalyst particles in HiPco single wall carbon nanotubes Magnetic properties of iron catalyst particles in HiPco single wall carbon nanotubes (en)
skos:notation	RIV/68378271:_____/11:00367520!RIV12-AV0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP204/10/1677), Z(AV0Z10100520), Z(AV0Z40400503), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	35
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Poltierová Vejpravová, Jana Bittová, Barbara Burianová, Simona
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	210225
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/11:00367520
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	metal catalyst particles; carbon nanotubes; superparamagnet; core-shell model; inter-particle interactions (en)
http://linked.open.../riv/klicoveSlovo	core-shell model inter-particle interactions metal catalyst particles superparamagnet carbon nanotubes
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[B0D7EC1472E2]
http://linked.open...i/riv/nazevZdroje	Journal of Physical Chemistry C
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Magnetic properties of carbon nanostructures in neutral and doped state
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	115
http://linked.open...iv/tvurceVysledku	Kalbáč, Martin Poltierová Vejpravová, Jana Bittová, Barbara Burianová, Simona Daniš, S. Doyle, S. Mantlíková, A.
http://linked.open...ain/vavai/riv/wos	000294386000010
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace Condensed Matter Physics – New Materials and Technologies
issn	1932-7447
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1021/jp203365g

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