Physico-Chemical Properties of NaV3O8 Prepared by Solid-State Reaction

Sodium–vanadium oxide NaV3O8 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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Autores principales:	Mariya Shchelkanova, Georgiy Shekhtman, Svetlana Pershina, Emma Vovkotrub
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	sodium power sources cathode materials sodium–vanadium oxides solid state synthesis Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/06cee1e00fea469a8a58c7e367175649
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spelling	oai:doaj.org-article:06cee1e00fea469a8a58c7e3671756492021-11-25T18:15:24ZPhysico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State Reaction10.3390/ma142269761996-1944https://doaj.org/article/06cee1e00fea469a8a58c7e3671756492021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6976https://doaj.org/toc/1996-1944Sodium–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.Mariya ShchelkanovaGeorgiy ShekhtmanSvetlana PershinaEmma VovkotrubMDPI AGarticlesodium power sourcescathode materialssodium–vanadium oxidessolid state synthesisTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6976, p 6976 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sodium power sources cathode materials sodium–vanadium oxides solid state synthesis Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	sodium power sources cathode materials sodium–vanadium oxides solid state synthesis Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 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
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.
format	article
author	Mariya Shchelkanova Georgiy Shekhtman Svetlana Pershina Emma Vovkotrub
author_facet	Mariya Shchelkanova Georgiy Shekhtman Svetlana Pershina Emma Vovkotrub
author_sort	Mariya Shchelkanova
title	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_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_sort	physico-chemical properties of nav<sub>3</sub>o<sub>8</sub> prepared by solid-state reaction
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/06cee1e00fea469a8a58c7e367175649
work_keys_str_mv	AT mariyashchelkanova physicochemicalpropertiesofnavsub3subosub8subpreparedbysolidstatereaction AT georgiyshekhtman physicochemicalpropertiesofnavsub3subosub8subpreparedbysolidstatereaction AT svetlanapershina physicochemicalpropertiesofnavsub3subosub8subpreparedbysolidstatereaction AT emmavovkotrub physicochemicalpropertiesofnavsub3subosub8subpreparedbysolidstatereaction
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Physico-Chemical Properties of NaV<sub>3</sub>O<sub>8</sub> Prepared by Solid-State Reaction

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