OLCHOWKA, Jacob; NGUYEN, Long H. B.; PETIT, Emmanuel; SANZ CAMACHO, Paula; MASQUELIER, Christian; CARLIER, Dany; CROGUENNEC, Laurence

doi:10.1021/acs.inorgchem.0c02546

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Licencia de uso del documento

OLCHOWKA, Jacob
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Réseau sur le stockage électrochimique de l'énergie [RS2E]
Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI]

NGUYEN, Long H. B.
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
Réseau sur le stockage électrochimique de l'énergie [RS2E]

PETIT, Emmanuel
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Réseau sur le stockage électrochimique de l'énergie [RS2E]

Idioma

Article de revue

Este ítem está publicado en

Inorganic Chemistry. 2020, vol. 59, n° 23, p. 17282-17290

American Chemical Society

Resumen en inglés

Polyanionic Na3V2(PO4)2FO2 has been successfully prepared for the first time by ionothermal reaction in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMIM TFSI) ionic liquid. Its structure and elemental stoichiometry are confirmed by X-ray diffraction, NMR spectroscopy, and ICP-OES, respectively. Furthermore, the scanning electron microscopy reveals that the as-obtained material possesses an original platelet-like morphology. A topochemical reaction mechanism is proposed to explain the formation of the 3D framework of Na3V2(PO4)2FO2 from layered compound α-VOPO4·2H2O. Galvanostatic electrochemical tests indicate a modification of the desodiation and sodiation mechanism of the as-prepared Na3V2(PO4)2FO2 compared to those synthesized by conventional solid-state approaches. Furthermore, the electrochemical performance of Na3V2(PO4)2FO2 obtained at different cycling rates is also discussed.< Leer menos

DOI

http://dx.doi.org/10.1021/acs.inorgchem.0c02546

Proyecto ANR

Laboratory of excellency for electrochemical energy storage - ANR-10-LABX-0076

Orígen

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Centros de investigación

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026