Sodium Ferrate Synthesized in a Solar Furnace: a Cathode Material for a Sodium-Ion Battery
M. S. PaizullakhanovInstitute of Materials Science, Academy of Sciences of Republic of Uzbekistan, 102226, Tashkent, UzbekistanO. R. ParpievInstitute of Materials Science, Academy of Sciences of Republic of Uzbekistan, 102226, Tashkent, UzbekistanE. Z. NodirmatovInstitute of Materials Science, Academy of Sciences of Republic of Uzbekistan, 102226, Tashkent, UzbekistanM. Kh. BazarovaNational Research Institute of Renewable Energy Sources, 100047, Tashkent, UzbekistanSh. Sh. ShosaitovNational Research Institute of Renewable Energy Sources, 100047, Tashkent, Uzbekistan
ABI
Abstract
It has been shown that a material based on sodium ferrate NaFeO2 can be obtained by synthesis from a melt in a solar furnace. The crystal structure is tetragonal with the lattice parameters of a = 5.638 Å, b = 5.672 Å, and c = 7.279 Å. The average particle size of the material is 1.2 μm. It has been found that the NaFeO2 material sample provides the oxidation–reduction activity of Na+/Na and the oxidation–reduction activity of Fe2+/Fe3+. Therefore, NaFeO2 can be a potential material for the cathode of a sodium-ion battery with a specific capacity of 110 mAh/g. It has been found that sodium ferrate NaFeO2 exhibits sufficiently good resistance to water. That is, sodium ferrate does not decompose in water at 80–100°C.
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