Physico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State Reaction
Sodium–vanadium oxide NaV<sub>3</sub>O<sub>8</sub> is synthesized via solid-state method and optimum synthesis conditions are chosen based on the data of DSC and TG analysis. The material synthesized is characterized by X-ray phase analysis, Raman spectroscopy and scanning el...
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| Online Access: | https://www.mdpi.com/1996-1944/14/22/6976 |
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| author | Mariya Shchelkanova Georgiy Shekhtman Svetlana Pershina Emma Vovkotrub |
| author_facet | Mariya Shchelkanova Georgiy Shekhtman Svetlana Pershina Emma Vovkotrub |
| author_sort | Mariya Shchelkanova |
| collection | DOAJ |
| description | Sodium–vanadium oxide NaV<sub>3</sub>O<sub>8</sub> is synthesized via solid-state method and optimum synthesis conditions are chosen based on the data of DSC and TG analysis. The material synthesized is characterized by X-ray phase analysis, Raman spectroscopy and scanning electron microscopy. The ratio V<sup>4+</sup>/V<sup>5+</sup> in the sample obtained is determined by X-ray photoelectron spectroscopy. Conductivity of the material synthesized was measured by impedance spectroscopy, pulse potentiometry and DC method over the range RT–570 °C. It is shown that NaV<sub>3</sub>O<sub>8</sub> has rather high conductivity essentially electron in type (6.3 × 10<sup>−2</sup> at room temperature). AC and DC conductivity measurements are performed and cycling of symmetricNaV<sub>3</sub>O<sub>8</sub>|Na<sub>3.85</sub>Zr<sub>1.85</sub>Nb<sub>0.15</sub>Si<sub>3</sub>O<sub>12</sub>|NaV<sub>3</sub>O<sub>8</sub> cell in galvanostatic conditions. Thermal stability is studied across 25–570 °C temperature range. The results obtained are compared with the properties of NaV<sub>3</sub>O<sub>8</sub> produced via aqueous solution. |
| first_indexed | 2024-03-10T05:18:25Z |
| format | Article |
| id | doaj.art-06cee1e00fea469a8a58c7e367175649 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T05:18:25Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-06cee1e00fea469a8a58c7e3671756492023-11-23T00:11:49ZengMDPI AGMaterials1996-19442021-11-011422697610.3390/ma14226976Physico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State ReactionMariya Shchelkanova0Georgiy Shekhtman1Svetlana Pershina2Emma Vovkotrub3Institute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 20 Akademicheskaya St., 620990 Ekatherinburg, RussiaInstitute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 20 Akademicheskaya St., 620990 Ekatherinburg, RussiaInstitute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 20 Akademicheskaya St., 620990 Ekatherinburg, RussiaInstitute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 20 Akademicheskaya St., 620990 Ekatherinburg, RussiaSodium–vanadium oxide NaV<sub>3</sub>O<sub>8</sub> is synthesized via solid-state method and optimum synthesis conditions are chosen based on the data of DSC and TG analysis. The material synthesized is characterized by X-ray phase analysis, Raman spectroscopy and scanning electron microscopy. The ratio V<sup>4+</sup>/V<sup>5+</sup> in the sample obtained is determined by X-ray photoelectron spectroscopy. Conductivity of the material synthesized was measured by impedance spectroscopy, pulse potentiometry and DC method over the range RT–570 °C. It is shown that NaV<sub>3</sub>O<sub>8</sub> has rather high conductivity essentially electron in type (6.3 × 10<sup>−2</sup> at room temperature). AC and DC conductivity measurements are performed and cycling of symmetricNaV<sub>3</sub>O<sub>8</sub>|Na<sub>3.85</sub>Zr<sub>1.85</sub>Nb<sub>0.15</sub>Si<sub>3</sub>O<sub>12</sub>|NaV<sub>3</sub>O<sub>8</sub> cell in galvanostatic conditions. Thermal stability is studied across 25–570 °C temperature range. The results obtained are compared with the properties of NaV<sub>3</sub>O<sub>8</sub> produced via aqueous solution.https://www.mdpi.com/1996-1944/14/22/6976sodium power sourcescathode materialssodium–vanadium oxidessolid state synthesis |
| spellingShingle | Mariya Shchelkanova Georgiy Shekhtman Svetlana Pershina Emma Vovkotrub Physico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State Reaction Materials sodium power sources cathode materials sodium–vanadium oxides solid state synthesis |
| title | Physico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State Reaction |
| title_full | Physico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State Reaction |
| title_fullStr | Physico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State Reaction |
| title_full_unstemmed | Physico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State Reaction |
| title_short | Physico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State Reaction |
| title_sort | physico chemical properties of nav sub 3 sub o sub 8 sub prepared by solid state reaction |
| topic | sodium power sources cathode materials sodium–vanadium oxides solid state synthesis |
| url | https://www.mdpi.com/1996-1944/14/22/6976 |
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