Synthesis and Properties of Mesoporous Maghemite
V. Kotsyubynskya, A. Hrubiak b, V. Moklyak b, L. Mohnatska a and S. Fedorchenko a
aVasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk, 76018, Ukraine
bInstitute of Metal Physics, National Academy of Science, 36 Acad. Vernadsky Boul., Kyiv, 03680, Ukraine
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Mesoporous maghemite (γ -Fe2O3), obtained by thermal decomposition of iron citrate xerogel hydrate, was investigated by X-ray diffraction, scanning electron microscopy, the Mössbauer and impedance spectroscopies and low temperature nitrogen adsorption. The influence of precursor molar concentration on the material morphology, crystalline and magnetic microstructures and electric conductivity was studied. Obtained results open up the possibility for synthesis of ultrafine γ -Fe2O3 with controlled structural and morphological characteristics.

DOI: 10.12693/APhysPolA.133.1021
PACS numbers: 75.47.Lx, 75.75.Cd, 61.46.-w, 81.16.Be