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Monitoring the crystal structure and the electrochemical properties of Na3(VO)2(PO4)2F through Fe3+ substitution
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
dc.contributor.author | NGUYEN, Long H. B. | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
hal.structure.identifier | Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI] | |
dc.contributor.author | OLCHOWKA, Jacob | |
hal.structure.identifier | Synchrotron SOLEIL [SSOLEIL] | |
dc.contributor.author | BELIN, Stéphanie | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | SANZ CAMACHO, Paula | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | DUTTINE, Mathieu | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
dc.contributor.author | IADECOLA, Antonella | |
hal.structure.identifier | ALBA Synchrotron light source [Barcelone] | |
dc.contributor.author | FAUTH, François | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
hal.structure.identifier | Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI] | |
dc.contributor.author | CARLIER, Dany | |
hal.structure.identifier | Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
hal.structure.identifier | Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI] | |
dc.contributor.author | MASQUELIER, Christian | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
hal.structure.identifier | Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI] | |
dc.contributor.author | CROGUENNEC, Laurence | |
dc.date.issued | 2019-10-11 | |
dc.identifier.issn | 1944-8244 | |
dc.description.abstractEn | We here present the synthesis of a new material, Na3(VO)Fe(PO4)2F2, by the sol–gel method. Its atomic and electronic structural descriptions are determined by a combination of several diffraction and spectroscopy techniques such as synchrotron X-ray powder diffraction and synchrotron X-ray absorption spectroscopy at V and Fe K edges, 57Fe Mössbauer, and 31P solid-state nuclear magnetic resonance spectroscopy. The crystal structure of this newly obtained phase is similar to that of Na3(VO)2(PO4)2F, with a random distribution of Fe3+ ions over vanadium sites. Even though Fe3+ and V4+ ions situate on the same crystallographic position, their local environment can be studied separately using 57Fe Mössbauer and X-ray absorption spectroscopy at Fe and V K edges, respectively. The Fe3+ ion resides in a symmetric octahedral environment, while the octahedral site of V4+ is greatly distorted due to the presence of the vanadyl bond. No electrochemical activity of the Fe4+/Fe3+ redox couple is detected, at least up to 5 V, whereas the reduction of Fe3+ to Fe2+ has been observed at ∼1.5 V versus Na+/Na through the insertion of 0.5 Na+ into Na3(VO)Fe(PO4)2F2. Comparing to Na3(VO)2(PO4)2F, the electrochemical profile of Na3(VO)Fe(PO4)2F2 in the same cycling condition shows a smaller polarization which could be due to a slight improvement in Na+ diffusion process thanks to the presence of Fe3+ in the framework. Furthermore, the desodiation mechanism occurring upon charging is investigated by operando synchrotron X-ray diffraction and operando synchrotron X-ray absorption at V K edge. | |
dc.description.sponsorship | Spectromètre EXAFS Rapide pour Cinétiques Chimiques | |
dc.description.sponsorship | Laboratory of excellency for electrochemical energy storage - ANR-10-LABX-0076 | |
dc.description.sponsorship | Batteries à ions sodium pour des robots télécommandés - ANR-13-DESC-0001 | |
dc.language.iso | en | |
dc.publisher | Washington, D.C. : American Chemical Society | |
dc.subject.en | Na+ diffusivity | |
dc.subject.en | solid-state NMR | |
dc.subject.en | synchrotron X-ray diffraction | |
dc.subject.en | Na3V2(PO4)2F3 | |
dc.subject.en | Na3(VO)2(PO4)2F | |
dc.subject.en | Fe3+ substitution | |
dc.subject.en | sodium-ion batteries | |
dc.subject.en | sol−gel synthesis | |
dc.subject.en | Fe 3+ -substitution | |
dc.subject.en | sol-gel synthesis | |
dc.subject.en | Na + diffusivity | |
dc.title.en | Monitoring the crystal structure and the electrochemical properties of Na3(VO)2(PO4)2F through Fe3+ substitution | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1021/acsami.9b14249 | |
dc.subject.hal | Chimie/Matériaux | |
dc.description.sponsorshipEurope | Na-Ion bAttery Demonstration for Electric Storage | |
bordeaux.journal | ACS Applied Materials & Interfaces | |
bordeaux.page | 38808-38818 | |
bordeaux.volume | 11 | |
bordeaux.issue | 42 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-02318063 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-02318063v1 | |
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