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Nanocomposite E(PbSnF4;SnF2)@SWCNT – Promising material for fluoride-ion batteriesстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Zakalyukin Ruslan M., Levkevich Ekaterina A., Kumskov Andrey S.
- Журнал: Ceramics International
- Том: 48
- Номер: 18
- Год издания: 2022
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 26565
- Последняя страница: 26574
- DOI: 10.1016/j.ceramint.2022.05.352
- Аннотация: The channels of single walled carbon nanotubes (SWCNT) were filled with eutectic composition consisting of PbSnF4 and SnF2. The nanocomposite was investigated by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), X-ray energy dispersive (EDX) spectroscopy and Raman spectroscopy. The SnF2 and PbSnF4 nanocrystals form independent regions with disordered atomic region between them inside the SWCNT with a diameter of 20.0(3) Å. In the PbSnF4 region there are two separate fragments connected by a twinning plane. Structural models of the PbSnF4 twin nanocrystal and SnF2 nanocrystal inside the nanotube with chilarity (26,0) were constructed and computer modelling of TEM-image of E(PbSnF4;SnF2)@SWCNT nanocomposite was performed. Solid-state FIB with Ce as anode, dispersed E(PbSnF4;SnF2)@SWCNT + SnF2 as a composite-cathode and 95.03%LaF3+4.97%BaF2 electrolyte was investigated by the impedance spectroscopy and cyclic voltammetry. The current density reached ~0.6 A/m2 at 180ºC, the open circuit voltage of the pellet at room temperature was 1.9 V.
- Добавил в систему: Левкевич Екатерина Александровна