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Cubic β-Fe2O3 as the product of the thermal decomposition of Fe2(SO4)3

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Abstract

The thermal decomposition of Fe2(SO4)3 in air has been investigated using transmission Mössbauer spectroscopy, CEMS and X-ray powder diffraction. The hexagonal α-Fe2O3 and cubic β-Fe2O3 with spinel structure have been identified as products of the decomposition. The influence of the Fe2(SO4)3 particle size on the yield of β-Fe2O3 in the final product is pointed out and discussed. The size of particles and the calcination temperature are the most important kinetic factors determining the phase composition (β-Fe2O3/α-Fe2O3) of iron (III) oxide.

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Authors and Affiliations

  1. Department of Inorganic and Physical Chemistry, Palacky University, Svobody 8, 771 46, Olomouc, Czech Republic

    Radek Zboril & Dagmar Krausova

  2. Department of Experimental Physics, Palacky University, Svobody 26, 771 46, Olomouc, Czech Republic

    Miroslav Mashlan

  3. Research Department, PRECHEZA, 750 62, Prerov, Czech Republic

    Petr Pikal

Authors
  1. Radek Zboril
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  2. Miroslav Mashlan
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  3. Dagmar Krausova
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  4. Petr Pikal
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Zboril, R., Mashlan, M., Krausova, D. et al. Cubic β-Fe2O3 as the product of the thermal decomposition of Fe2(SO4)3 . Hyperfine Interactions 120, 497–501 (1999). https://doi.org/10.1023/A:1017018111071

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