Synthesis, structure, and electrochemical properties of LiFeV2O7
| hal.structure.identifier | Laboratory of Chemistry and Electrochemistry of Solids | |
| dc.contributor.author | BENABED, Yasmine | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CASTRO, Laurent | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | PENIN, Nicolas | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DARRIET, Jacques | |
| hal.structure.identifier | Laboratory of Chemistry and Electrochemistry of Solids | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DOLLÉ, Mickaël | |
| dc.date.issued | 2017-11-02 | |
| dc.identifier.issn | 0897-4756 | |
| dc.description.abstractEn | The structure of a novel compound, LiFeV2O7, has been determined from single-crystal X-ray diffraction data. The phase crystallizes in the non-centrosymmetric monoclinic Cc space group. The structure can be described as a layered type compound alternating (Li,Fe)–O sheets and V–O chains that are perpendicular to the [101] direction. Within the (Li,Fe)–O sheets, “hexagonal” holes are formed and assembled into tunnels running parallel to the [201] direction and hosting the vanadium atoms. Original (V4O14)8– strings are observed within the structure in association with well-known (V2O7)4– pyrovanadate units. Both units alternate parallel to the [−101] direction. LiFeV2O7 displays a reversible insertion–deinsertion mechanism for Li+ ions. The theoretical capacity for the insertion of one Li+ into LiFeV2O7 reaches 97 mAh/g. When the compound is cycled between 3.50 and 2.35 V versus Li+/Li, the electrochemical curve displays an initial capacity of 100 mAh/g, with 85% of this capacity retained after 60 cycles. No evidence of the formation of Fe4+ upon oxidation to a high voltage was observed. LiFeV2O7 represents the first reported phase in the Li2O–Fe2O3–V2O5 ternary diagram with electrochemical activities. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.title.en | Synthesis, structure, and electrochemical properties of LiFeV2O7 | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/acs.chemmater.7b03271 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Chemistry of Materials | |
| bordeaux.page | 9292-9299 | |
| bordeaux.volume | 29 | |
| bordeaux.issue | 21 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02570003 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02570003v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemistry%20of%20Materials&rft.date=2017-11-02&rft.volume=29&rft.issue=21&rft.spage=9292-9299&rft.epage=9292-9299&rft.eissn=0897-4756&rft.issn=0897-4756&rft.au=BENABED,%20Yasmine&CASTRO,%20Laurent&PENIN,%20Nicolas&DARRIET,%20Jacques&DOLL%C3%89,%20Micka%C3%ABl&rft.genre=article |
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