Iron nanoparticles prepared from natural ferrihydrite precursors: kinetics and properties
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00438028" target="_blank" >RIV/68081723:_____/11:00438028 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1007/s11051-011-0383-2" target="_blank" >http://dx.doi.org/10.1007/s11051-011-0383-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11051-011-0383-2" target="_blank" >10.1007/s11051-011-0383-2</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Iron nanoparticles prepared from natural ferrihydrite precursors: kinetics and properties
Popis výsledku v původním jazyce
Natural ferrihydrite was used as the precursors for the preparation of the nanocrystalline alpha-Fe powder using heat treatment in hydrogen atmosphere. Transformation temperatures were estimated from the temperature dependences of magnetic moment. Structure and phase composition of the precursors and the final powders were characterized by X-ray diffraction and Mossbauer spectroscopy. Magnetic properties were characterized according to hysteresis loop parameters. The kinetics of the transformation was described using Avrami relation applied on the data of the isothermal time dependence of magnetic moment measurements and subsequently the activation enthalpy of transformation was estimated using Arrhenius plots of their parameters. Comparison of the changes of activation enthalpies derived from a different temperature ranges indicates effects of different processes on formation of alpha-Fe nanoparticles
Název v anglickém jazyce
Iron nanoparticles prepared from natural ferrihydrite precursors: kinetics and properties
Popis výsledku anglicky
Natural ferrihydrite was used as the precursors for the preparation of the nanocrystalline alpha-Fe powder using heat treatment in hydrogen atmosphere. Transformation temperatures were estimated from the temperature dependences of magnetic moment. Structure and phase composition of the precursors and the final powders were characterized by X-ray diffraction and Mossbauer spectroscopy. Magnetic properties were characterized according to hysteresis loop parameters. The kinetics of the transformation was described using Avrami relation applied on the data of the isothermal time dependence of magnetic moment measurements and subsequently the activation enthalpy of transformation was estimated using Arrhenius plots of their parameters. Comparison of the changes of activation enthalpies derived from a different temperature ranges indicates effects of different processes on formation of alpha-Fe nanoparticles
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BM - Fyzika pevných látek a magnetismus
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2011
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Nanoparticle Research
ISSN
1388-0764
e-ISSN
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Svazek periodika
13
Číslo periodika v rámci svazku
11
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
8
Strana od-do
5677-5684
Kód UT WoS článku
000297351600012
EID výsledku v databázi Scopus
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