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Fluoride solid electrolytes : from microcrystalline to nanostructured tysonite-type La0.95Ba0.05F2.95

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorCHABLE, Johann
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorMARTIN, A. G.
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorBOURDIN, A.
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorBODY, Monique
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorLEGEIN, Christophe
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorJOUANNEAUX, Alain
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorCROSNIER-LOPEZ, Marie-Pierre
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorGALVEN, Cyrille
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDIEUDONNÉ, Belto
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorLEBLANC, Marc
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDEMOURGUES, Alain
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorMAISONNEUVE, Vincent
dc.date.issued2017-01
dc.identifier.issn0925-8388
dc.description.abstractEnPure tysonite La0.95Ba0.05F2.95 is nanostructured by using the ball-milling technique. Size and pollution rate are minimized using the statistical method of Design of Experiment. The nanocrystalline powders are studied by X-ray and TEM analyses and by 19F solid state NMR and impedance spectroscopies. Specific surface area and F/OH substitution rate are estimated by BET measurements and thermal analysis (TGA-MS), respectively. Fluorine environments and mobilities are discussed on the basis of 19F solid state NMR data, both prior and after thermal treatment. The ionic conductivity, evaluated from sintered pellets, is compared at different thermal treatment temperatures. Thermal treatment tends to reduce microstrains up to 500 °C and to increase the grain size above this temperature. Optimal conductivity is obtained for a thermal treatment from 700 °C and no significant improvement of the conductivity by nanostructuration is observed.
dc.description.sponsorshipBatteries tout solide à ions fluorure
dc.language.isoen
dc.publisherElsevier
dc.subject.enSolid electrolytes
dc.subject.enRare earth fluorides
dc.subject.enTysonite type structure
dc.subject.enNanostructuration
dc.subject.enBall-milling
dc.subject.enIonic conductivity
dc.subject.enImpedance spectroscopy
dc.subject.enDesign of experiment
dc.subject.en19F solid state NMR
dc.subject.enPellet shaping
dc.title.enFluoride solid electrolytes : from microcrystalline to nanostructured tysonite-type La0.95Ba0.05F2.95
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jallcom.2016.09.135
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Alloys and Compounds
bordeaux.page980-988
bordeaux.volume692
bordeaux.peerReviewedoui
hal.identifierhal-01416986
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01416986v1
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