Nanoscopic Yttrium-Iron Garnet and Perovskite by Sonolysis of M(acac)3 Complexes

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Nanoscopic Yttrium-Iron Garnet and Perovskite by Sonolysis of M(acac)3 Complexes

Popis výsledku v původním jazyce

We present sonochemical synthesis of YFeO3 and Y3Fe5O12 by employing the corresponding mixtures of M(acac)3 precursors. Resulting phase composition of the product can be controlled by the starting stoichiometry of the precursor complexes. Reactions carried out with a 1:1 molar ratio led to amorphous materials that crystallized to perovskite YFeO3 upon calcination. The Y3Fe5O12 garnet phase was produced when a 3:5 molar ratio was employed. SEM was used to examine particle shape, size, and size distribution. The oxide products featured nanoscopic composite particles of a uniform size distribution and nearly spherical shapes with an estimated diameter of 20 nm. TEM study revealed the amorphous structure of the oxide products and the crystalline nature ofthe calcined phases. HT XRD revealed crystallization of YFeO3 or Y3Fe5O12 on heating and the increase in particle diameter.

Název v anglickém jazyce

Nanoscopic Yttrium-Iron Garnet and Perovskite by Sonolysis of M(acac)3 Complexes

Popis výsledku anglicky

We present sonochemical synthesis of YFeO3 and Y3Fe5O12 by employing the corresponding mixtures of M(acac)3 precursors. Resulting phase composition of the product can be controlled by the starting stoichiometry of the precursor complexes. Reactions carried out with a 1:1 molar ratio led to amorphous materials that crystallized to perovskite YFeO3 upon calcination. The Y3Fe5O12 garnet phase was produced when a 3:5 molar ratio was employed. SEM was used to examine particle shape, size, and size distribution. The oxide products featured nanoscopic composite particles of a uniform size distribution and nearly spherical shapes with an estimated diameter of 20 nm. TEM study revealed the amorphous structure of the oxide products and the crystalline nature ofthe calcined phases. HT XRD revealed crystallization of YFeO3 or Y3Fe5O12 on heating and the increase in particle diameter.

Druh

D - Stať ve sborníku

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

11 th Meeting of the European Society of Sonochemistry

ISBN

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ISSN

1350-4177

e-ISSN

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Počet stran výsledku

2

Strana od-do

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Název nakladatele

UTINAM Universite de Franche-Comte

Místo vydání

Basancon, Francie

Místo konání akce

La Grande Motte, Francie

Datum konání akce

1. 1. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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