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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F12%3A33141839%21RIV13-MSM-15310___
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Iron oxide nanomaterials with desired properties synthesized in the form of nanoparticle powders can find attractive applicability, e. g. in catalysis. Hence it is necessary to thoroughly characterize the materials by several measuring techniques. Two selected samples of amorphous Fe2O3 nanoparticles with high specific surface area values were prepared by the thermal treatment of different iron-bearing precursors. In addition to Mossbauer and microscopy methods, the nitrogen sorption based surface analysis is discussed from the viewpoint of textural morphology characterization of mentioned nanomaterials. The nitrogen adsorption-desorption isotherms have been measured and indicate the presence of micro and mesoporosity. One can conclude that the porosity arises from intra-aggregate voids and spaces formed by inter-particle contacts. The state of agglomeration can be estimated and appropriate application chosen. Iron oxide nanomaterials with desired properties synthesized in the form of nanoparticle powders can find attractive applicability, e. g. in catalysis. Hence it is necessary to thoroughly characterize the materials by several measuring techniques. Two selected samples of amorphous Fe2O3 nanoparticles with high specific surface area values were prepared by the thermal treatment of different iron-bearing precursors. In addition to Mossbauer and microscopy methods, the nitrogen sorption based surface analysis is discussed from the viewpoint of textural morphology characterization of mentioned nanomaterials. The nitrogen adsorption-desorption isotherms have been measured and indicate the presence of micro and mesoporosity. One can conclude that the porosity arises from intra-aggregate voids and spaces formed by inter-particle contacts. The state of agglomeration can be estimated and appropriate application chosen.
dcterms:title
Iron Oxide Nanoparticle Powders with High Surface Area Iron Oxide Nanoparticle Powders with High Surface Area
skos:prefLabel
Iron Oxide Nanoparticle Powders with High Surface Area Iron Oxide Nanoparticle Powders with High Surface Area
skos:notation
RIV/61989592:15310/12:33141839!RIV13-MSM-15310___
n16:predkladatel
n17:orjk%3A15310
n4:aktivita
n9:S n9:P
n4:aktivity
P(ED2.1.00/03.0058), P(EE2.3.20.0155), S
n4:dodaniDat
n20:2013
n4:domaciTvurceVysledku
n6:3883620 n6:7008686 n6:7321023 n6:7266065 n6:3439933 n6:1490397
n4:druhVysledku
n14:D
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n23:predkladatel
n4:idSjednocenehoVysledku
143039
n4:idVysledku
RIV/61989592:15310/12:33141839
n4:jazykVysledku
n19:eng
n4:klicovaSlova
porosity Mossbauer spectroscopy; surface area; magnetic nanoparticles; amorphous phase; Iron(III) oxide
n4:klicoveSlovo
n8:surface%20area n8:porosity%20Mossbauer%20spectroscopy n8:Iron%28III%29%20oxide n8:amorphous%20phase n8:magnetic%20nanoparticles
n4:kontrolniKodProRIV
[303EB4B79A37]
n4:mistoKonaniAkce
Olomouc
n4:mistoVydani
New York
n4:nazevZdroje
AIP Conference Proceedings
n4:obor
n15:BM
n4:pocetDomacichTvurcuVysledku
6
n4:pocetTvurcuVysledku
6
n4:projekt
n10:ED2.1.00%2F03.0058 n10:EE2.3.20.0155
n4:rokUplatneniVysledku
n20:2012
n4:tvurceVysledku
Medřík, Ivo Šafářová, Klára Tuček, Jiří Machala, Libor Křížek, Michal Pechoušek, Jiří
n4:typAkce
n11:WRD
n4:wos
000311909900010
n4:zahajeniAkce
2012-06-11+02:00
s:issn
0094-243X
s:numberOfPages
7
n18:doi
10.1063/1.4759476
n21:hasPublisher
American Institute of Physics
n22:isbn
978-0-7354-1101-2
n3:organizacniJednotka
15310