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Thermally Induced Solid-State Syntheses of γ-Fe2O3 Nanoparticles and Their Transformation to α-Fe2O3 via ε-Fe2O3

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Abstract

The thermally induced solid-state syntheses of γ-Fe2O3 nanoparticles from iron-bearing materials (FeSO4, Fe2(C2O4)3 and almandine garnet) are described. Magnetic properties, particles size and the mechanism of the structural change of γ-Fe2O3 nanoparticles have been investigated using 57Fe Mössbauer spectroscopy, X-ray powder diffraction (XRD) and atomic force microscopy (AFM). γ-Fe2O3 nanoparticles are transformed into hematite via ε-Fe2O3 as the intermediate.

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Authors and Affiliations

  1. Departments of Inorganic and Physical Chemistry and Experimental Physics, Palacky University, Svobody 26, 771 46, Olomouc, Czech Republic

    R. Zboril, M. Mashlan, K. Barcova & M. Vujtek

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  1. R. Zboril
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  2. M. Mashlan
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  3. K. Barcova
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  4. M. Vujtek
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Zboril, R., Mashlan, M., Barcova, K. et al. Thermally Induced Solid-State Syntheses of γ-Fe2O3 Nanoparticles and Their Transformation to α-Fe2O3 via ε-Fe2O3 . Hyperfine Interactions 139, 597–606 (2002). https://doi.org/10.1023/A:1021226929237

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