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@article{896071,
author = {Pinkas, Jiří and Reichlová, Vendula and Serafimidisová, Aneta and Moravec, Zdeněk and Zbořil, Radek and Jančík, Dalibor and Bezdička, Petr},
article_location = {WASHINGTON},
article_number = {32},
keywords = {Sonochemistry; Nanoparticles; Amorphous; Yttrium Iron Oxide; Garnet; Perovskite},
language = {eng},
issn = {1932-7447},
journal = {JOURNAL OF PHYSICAL CHEMISTRY C},
title = {Sonochemical Synthesis of Amorphous Yttrium Iron Oxides Embedded in Acetate Matrix and their Controlled Thermal Crystallization toward Garnet (Y3Fe5O12) and Perovskite (YFeO3) Nanostructures},
volume = {114},
year = {2010}
}
TY - JOUR
ID - 896071
AU - Pinkas, Jiří - Reichlová, Vendula - Serafimidisová, Aneta - Moravec, Zdeněk - Zbořil, Radek - Jančík, Dalibor - Bezdička, Petr
PY - 2010
TI - Sonochemical Synthesis of Amorphous Yttrium Iron Oxides Embedded in Acetate Matrix and their Controlled Thermal Crystallization toward Garnet (Y3Fe5O12) and Perovskite (YFeO3) Nanostructures
JF - JOURNAL OF PHYSICAL CHEMISTRY C
VL - 114
IS - 32
SP - 13557–13564
EP - 13557–13564
PB - AMER CHEMICAL SOC
SN - 19327447
KW - Sonochemistry
KW - Nanoparticles
KW - Amorphous
KW - Yttrium Iron Oxide
KW - Garnet
KW - Perovskite
N2 - Sonolysis of stoichiometric mixtures of tris(2,4 pentanedionato)iron, Fe(acac)3, and tris(2,4-pentanedionato) yttrium, Y(acac)3(H2O)3, under Ar atmosphere in tetraglyme led to a colloidal solution from which amorphous Y-Fe-O nanopowders could be precipitated by hexane. These powders are composed of amorphous nanoparticles (3 nm) of yttrium iron(III) oxide embedded in an acetate matrix as proved by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), mass spectrometry, and Mossbauer and IR spectroscopy. The thermally induced crystallization of the amorphous Y-Fe-O nanoparticles was studied by thermal analysis (TG/ DSC), evolved gas analysis (EGA), high-temperature XRD, and Mossbauer spectroscopy. Depending on the Y/Fe starting stoichiometric ratio in the sonicated reaction mixture, the single-phase YFeO3 (YIP) with the perovskite structure or Y3Fe5O12 (YIG) with the garnet structure can be synthesized by such controlled thermal transformation.
ER -
PINKAS, Jiří, Vendula REICHLOVÁ, Aneta SERAFIMIDISOVÁ, Zdeněk MORAVEC, Radek ZBOŘIL, Dalibor JANČÍK a Petr BEZDIČKA. Sonochemical Synthesis of Amorphous Yttrium Iron Oxides Embedded in Acetate Matrix and their Controlled Thermal Crystallization toward Garnet (Y3Fe5O12) and Perovskite (YFeO3) Nanostructures. \textit{JOURNAL OF PHYSICAL CHEMISTRY C}. WASHINGTON: AMER CHEMICAL SOC, 2010, roč.~114, č.~32, s.~13557–13564. ISSN~1932-7447.
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