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Realizing Three-Electron Redox Reactions in NASICON-Type NaCrNb(PO4)3 for Sodium Ion Battery Applicationsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Panin Rodion V., Cherkashchenko Ilia R., Zaitseva Valentina V., Samigullin Ruslan R., Zakharkin Maxim V., Novichkov Daniil A., Babkin Alexander V., Mikheev Ivan V., Khasanova Nellie R., Antipov Evgeny V.
- Журнал: Chemistry of Materials
- Том: 36
- Год издания: 2024
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 6902
- Последняя страница: 6911
- DOI: 10.1021/acs.chemmater.4c00933
- Аннотация: Sodium-ion batteries (SIB) technology offers an attractive alternative to rechargeable batteries for large-scale application. To meet the practical demands, it is essential to develop stable electrode materials with high capacity and high energy density. Herein, we demonstrate a successful activation of the of Nb5+/Nb4+, Nb4+/Nb3+ and Cr3+/Cr2+ redox couples in NASICON structured NaCrNb(PO4)3, thus introducing a novel three-electron reaction anode for sodium-ion batteries with high specific capacity. Carbon coated NaCrNb(PO4)3 synthesized using the Pechini sol-gel method demonstrates the reversible capacity of 162 mA h*g−1 at 1C rate and good cycling stability. This is a first example of NASICON type anode material with the Cr3+/Cr2+ reversible transition confirmed by Cr K-edge XANES measurements. Operando X-ray powder diffraction showed that sodium insertion-extraction in NaCrNb(PO4)3 proceeds through a combination of single-phase and biphasic processes. The scanning calorimetry study revealed the excellent thermal stability of NaCrNb(PO4)3, which exceeds that of hard carbon anodes, making it a promising anode material for sodium-ion batteries.
- Добавил в систему: Панин Родион Владиславович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | экспертное заключение о взможности публикования | realizing_three-electron_redo_reactions.pdf | 547,7 КБ | 22 ноября 2024 [evantipov] | |
| 2. | panin-et-al-2024-realizing-three-electron-redox-reactions-i… | panin-et-al-2024-realizing-three-electron-redox-reactions-i… | 5,2 МБ | 27 августа 2024 [evantipov] |