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Structure and transport properties in an N,N-substituted pyrrolidinium tetrafluoroborate plastic crystal system
journal contribution
posted on 2002-12-02, 00:00 authored by Jim Efthimiadis, S Pas, Maria ForsythMaria Forsyth, D MacFarlaneThe structure and transport of N-propyl-N-methylpyrrolidinium tetrafluoroborate (P13BF4) has been investigated over a wide temperature range in consequence to exhibiting properties suitable for potential solid-state superionic electrolyte applications. Prior to melting, the organic salt, P13BF4, transforms into a plastic crystal phase. Intrinsic conductivity in this solid, phase I (45–65 °C), is comparable to that in the melt (~10−3 S cm−1). Ionic motion and transport properties were investigated by 1H and 11B nuclear magnetic resonance (NMR) spectroscopy. Pressure-induced plastic flow in this system may accommodate volume changes in device application and to this extent, X-ray diffraction (XRD) has been used. Scanning electron microscopy (SEM) revealed complex surface morphology and lattice imperfections associated with the strong orientational disorder of the plastic state.
History
Journal
Solid state ionicsVolume
154-155Pagination
279 - 284Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0167-2738eISSN
1872-7689Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2002, Elsevier Science B.V.Usage metrics
Keywords
plastic crystalsfast ion conductionelectron microscopynuclear magnetic resonancex-ray diffractionScience & TechnologyPhysical SciencesChemistry, PhysicalPhysics, Condensed MatterChemistryPhysicsplastic crystalPHASE-TRANSITIONSIONIC MOTIONSF-19 NMRMOLECULAR-MOTIONMOLTEN-SALTSH-1ELECTROLYTESCondensed Matter Physics
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