Abstract
The solution combustion synthesis of iron oxides from nitrate solutions with a dual fuel comprising urea and citric acid on the earlier synthesized FeOx powder was studied. The possibility of the synthesis of up to 100 g of the desired product under laboratory conditions in a relatively small (4 dm3) reactor was demonstrated for the first time. The obtained nanodisperse materials were a well-crystallized mixture of Fe3O4 and α-Fe2O3 oxides. A consistent increase in the weight of the FeOx powder led to an increase in the mass fraction of the α-Fe2O3 phase to 91% at the final stage of the synthesis.
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This work was supported by state assignments for the Institute of Solid-State Chemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia (no. AAAA–A19–119031890026–6), the Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia (no. AAAA–F18–118030290007–5), and the Yeltsin Ural Federal University, Yekaterinburg, Russia (no. AAAA–A20–120061990010–7).
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Khaliullin, S.M., Murzakaev, A.M., Zhuravlev, V.D. et al. Scale-up of the Solution Combustion Synthesis of Iron Oxides with the Addition of the Inactive Component FeOx. Dokl Phys Chem 498, 54–59 (2021). https://doi.org/10.1134/S001250162105002X
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DOI: https://doi.org/10.1134/S001250162105002X