VIV Disproportionation Upon Sodium Extraction From Na3V2(PO4)2F3 Observed by Operando X-ray Absorption Spectroscopy and Solid-State NMR
Thibault Broux
1, 2, 3
,
Tahya Bamine
1, 3
,
Laura Simonelli
4
,
Lorenzo Stievano
3, 5, 6
,
François Fauth
4
,
M. Menetrier
1, 3
,
Dany Carlier
1, 3
,
Christian Masquelier
2, 3, 6
,
Laurence Croguennec
1, 3, 6
1
3
Réseau Français sur le Stockage Electrochimique de l’Energie, FR CNRS 3459, F-80039 Amiens Cedex 1, France
|
6
ALISTORE-ERI European Research Institute, FR CNRS 3104, F-80039 Amiens Cedex 1, France
|
Тип публикации: Journal Article
Дата публикации: 2017-02-21
scimago Q1
wos Q3
БС1
SJR: 0.914
CiteScore: 6.2
Impact factor: 3.2
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Краткое описание
Among the series of polyanionic positive electrodes for sodium-ion batteries having the general formula Na3V2(PO4)2F3–yOy (0 ≤ y ≤ 2), the composition Na3V2(PO4)2F3 (y = 0) has the highest theoretical energy that offers competitive electrochemical performances compared to sodium transition metal oxides. Recently, the structural phase diagram from Na3V2(PO4)2F3 to Na1V2(PO4)2F3 has been thoroughly investigated by operando synchrotron X-ray diffraction revealing an unexpected structural feature for the end member composition. In fact, the crystal structure of Na1V2(PO4)2F3 has two very different vanadium environments within each bioctahedron that suggests a charge disproportionation of two VIV into VIII and VV. This work shows an operando X-ray absorption spectroscopy at vanadium K edge during the electrochemical extraction of Na+ in order to monitor the redox processes involved in this compound. The large data set provided by this experiment has been processed by the principal component analysis combined w...
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Broux T. et al. VIV Disproportionation Upon Sodium Extraction From Na3V2(PO4)2F3 Observed by Operando X-ray Absorption Spectroscopy and Solid-State NMR // Journal of Physical Chemistry C. 2017. Vol. 121. No. 8. pp. 4103-4111.
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Broux T., Bamine T., Simonelli L., Stievano L., Fauth F., Menetrier M., Carlier D., Masquelier C., Croguennec L. VIV Disproportionation Upon Sodium Extraction From Na3V2(PO4)2F3 Observed by Operando X-ray Absorption Spectroscopy and Solid-State NMR // Journal of Physical Chemistry C. 2017. Vol. 121. No. 8. pp. 4103-4111.
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TY - JOUR
DO - 10.1021/acs.jpcc.6b11413
UR - https://doi.org/10.1021/acs.jpcc.6b11413
TI - VIV Disproportionation Upon Sodium Extraction From Na3V2(PO4)2F3 Observed by Operando X-ray Absorption Spectroscopy and Solid-State NMR
T2 - Journal of Physical Chemistry C
AU - Broux, Thibault
AU - Bamine, Tahya
AU - Simonelli, Laura
AU - Stievano, Lorenzo
AU - Fauth, François
AU - Menetrier, M.
AU - Carlier, Dany
AU - Masquelier, Christian
AU - Croguennec, Laurence
PY - 2017
DA - 2017/02/21
PB - American Chemical Society (ACS)
SP - 4103-4111
IS - 8
VL - 121
SN - 1932-7447
SN - 1932-7455
ER -
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@article{2017_Broux,
author = {Thibault Broux and Tahya Bamine and Laura Simonelli and Lorenzo Stievano and François Fauth and M. Menetrier and Dany Carlier and Christian Masquelier and Laurence Croguennec},
title = {VIV Disproportionation Upon Sodium Extraction From Na3V2(PO4)2F3 Observed by Operando X-ray Absorption Spectroscopy and Solid-State NMR},
journal = {Journal of Physical Chemistry C},
year = {2017},
volume = {121},
publisher = {American Chemical Society (ACS)},
month = {feb},
url = {https://doi.org/10.1021/acs.jpcc.6b11413},
number = {8},
pages = {4103--4111},
doi = {10.1021/acs.jpcc.6b11413}
}
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MLA
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Broux, Thibault, et al. “VIV Disproportionation Upon Sodium Extraction From Na3V2(PO4)2F3 Observed by Operando X-ray Absorption Spectroscopy and Solid-State NMR.” Journal of Physical Chemistry C, vol. 121, no. 8, Feb. 2017, pp. 4103-4111. https://doi.org/10.1021/acs.jpcc.6b11413.