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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 and 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, vol.~114, No~32, p.~13557–13564. ISSN~1932-7447.
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