Synthesis of Ce:YIG nanopowder by gel combustion

Nanocrystalline Ce-substituted yttrium iron-gallium garnet Y2.5Ce0.5(Fe0.5Ga0.5)5O12 was obtained by a metal-organic gel combustion method using PVA as a fuel with subsequent calcining in vacuum at 700 ° C. According to SEM and XRD data, an additional heat treatment in air led only to an increase in...

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Published inNanosystems : Physics, Chemistry, Mathematics Vol. 12; no. 2; pp. 210 - 217
Main Authors Smirnova, M.N., Glazkova, I.S., Nikiforova, C.E., Kop'eva, M.A., Eliseev, A.A., Gorbachev, E.A., Ketsko, V.A.
Format Journal Article
LanguageEnglish
Published St. Petersburg St. Petersburg National Research University of Information Technologies, Mechanics and Optics 2021
Subjects
Cerium
Combustion
Gallium
Heat treatment
Iron 57
Mossbauer spectroscopy
Spectrum analysis
X ray powder diffraction
X-ray fluorescence
Yttrium
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Summary:Nanocrystalline Ce-substituted yttrium iron-gallium garnet Y2.5Ce0.5(Fe0.5Ga0.5)5O12 was obtained by a metal-organic gel combustion method using PVA as a fuel with subsequent calcining in vacuum at 700 ° C. According to SEM and XRD data, an additional heat treatment in air led only to an increase in the crystallinity of the sample. The element composition and the phase purity were confirmed by X-ray fluorescence spectroscopy and X-ray powder diffraction, respectively. Mossbauer spectroscopy on 57Fe nuclei revealed the presence of only Fe3+ ions in the sample, which can be considered as indirect evidence of the absence of tetravalent cerium impurity.
ISSN:2220-8054
2305-7971
DOI:10.17586/2220-8054-2021-12-2-210-217