Thermally stimulated iron oxide transfromations and magnetic behaviour of cerium dioxide/iron oxide reactive sorbents

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F16%3A43887821" target="_blank" >RIV/44555601:13520/16:43887821 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S1044580316302996" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1044580316302996</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchar.2016.09.009" target="_blank" >10.1016/j.matchar.2016.09.009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermally stimulated iron oxide transfromations and magnetic behaviour of cerium dioxide/iron oxide reactive sorbents

Popis výsledku v původním jazyce

The present paper is devoted to detailed study of the magnetically separable sorbents based on a cerium dioxide/iron oxide composite annealed at temperatures Ta = 773 K, 873 K, and 973 K. The X-ray diffraction and high resolution transmission electron microscopy are used to determine the phase composition and microstructure morphology. Mössbauer spectroscopy at room (300 K) and low (5 K) temperatures has contributed to more exact identification of iron oxides and their transformations Fe3O4 RIGHTWARDS ARROW ?-Fe2O3 (?-Fe2O3) RIGHTWARDS ARROW ?-Fe2O3 in dependence on calcination temperature. Different iron oxide phase compositions and grain size distributions influence the magnetic characteristics determined from the room- and low-temperature hysteresis loop measurements. The results are supported by zero-field-cooled and field-cooled magnetization measurements allowing a quantitative estimation of the grain size distribution and its effect on the iron oxide transformations.

Název v anglickém jazyce

Thermally stimulated iron oxide transfromations and magnetic behaviour of cerium dioxide/iron oxide reactive sorbents

Popis výsledku anglicky

The present paper is devoted to detailed study of the magnetically separable sorbents based on a cerium dioxide/iron oxide composite annealed at temperatures Ta = 773 K, 873 K, and 973 K. The X-ray diffraction and high resolution transmission electron microscopy are used to determine the phase composition and microstructure morphology. Mössbauer spectroscopy at room (300 K) and low (5 K) temperatures has contributed to more exact identification of iron oxides and their transformations Fe3O4 RIGHTWARDS ARROW ?-Fe2O3 (?-Fe2O3) RIGHTWARDS ARROW ?-Fe2O3 in dependence on calcination temperature. Different iron oxide phase compositions and grain size distributions influence the magnetic characteristics determined from the room- and low-temperature hysteresis loop measurements. The results are supported by zero-field-cooled and field-cooled magnetization measurements allowing a quantitative estimation of the grain size distribution and its effect on the iron oxide transformations.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/LM2015073" target="_blank" >LM2015073: Nanomateriály a nanotechnologie pro ochranu životního prostředí a udržitelnou budoucnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials Characterization

ISSN

1044-5803

e-ISSN

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Svazek periodika

120

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

295-303

Kód UT WoS článku

000386413900035

EID výsledku v databázi Scopus

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