The article studies the influence of solid-phase and melt synthesis methods on the structure and electrochemical properties of the Na3Fe2(PO4)3 polycrystals. If the solid-phase synthesis of the Na3Fe2(PO4)3 polycrystals (type 1 of samples) is carried out using ceramic technology, initially glassy precursors are first obtained by melting the starting materials under the influence of optical radiation energy at the melt synthesis method, and the Na3Fe2(PO4)3 polycrystals are obtained after firing (type 2 of samples). With this method, the synthesis of polycrystals occurs quickly under sharp temperature-gradient conditions, therefore, the monoclinic distortions of α-Na3Fe2(PO4)3 structure are partially removed under the influence of compressive deformation. Due to the greater symmetrization of the α-Na3Fe2(PO4)3 crystal structure and the higher density of type 2 samples, their electrochemical properties are improved. As a result of a comparative assessment of the structures and electrochemical properties of the Na3Fe2(PO4)3 polycrystals, it was shown that samples of the second type have better cutting and higher densities and energy capacities than samples of the first type.
| Mualliflar | A. S. Nogai, Artur A. NOGAI, D. E. Uskenbaev, E. A. Nogai, Alexander A. BUSH |
|---|---|
| Jurnal | Kimyo va kimyo texnologiyasi |
| Nashr sanasi | 2024-07-03 |
| Jild | 2024 |
| Son | 2 |
| Til | en |
| DOI | 10.70189/1992-9498.1619 |
DOI: 10.70189/1992-9498.1619 · Maqolaning asl sahifasi
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