Oxide ion conductivity, phase transitions, and phase separation in fluorite-based Bi38−xMo7+xO78+1.5x

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dc.contributor.authorKuang, XJen_AU
dc.contributor.authorLi, YDen_AU
dc.contributor.authorLing, CDen_AU
dc.contributor.authorWithers, RLen_AU
dc.contributor.authorEvans, IRen_AU
dc.date.accessioned2010-09-01T05:01:25Zen_AU
dc.date.available2010-09-01T05:01:25Zen_AU
dc.date.issued2010-08-10en_AU
dc.date.statistics2010-08-10en_AU
dc.description.abstractWe present, for the first time, the ionic conductivity properties of two different, but closely related, bismuth molybdates: Bi38Mo7O78 and Bi37.5Mo7.5O78.75. Both are good oxide ion conductors, with the latter being comparable to yttria-stabilized zirconia. We show that the structure of Bi38Mo7O78 is more complex than previously reported, and that this compound is a 5 × 3 × 6 fluorite superstructure with slight monoclinic distortion. In addition to being a good oxide ion conductor, the material is noncentrosymmetric-polar and second harmonic generation (SHG) active. The second phase, orthorhombic Bi37.5Mo7.5O78.75, reported for the first time, is an excellent oxide ion conductor. The materials have been characterized by impedance spectroscopy, variable-temperature synchrotron, neutron and laboratory powder X-ray diffraction, electron diffraction, and SHG measurements. © 2010, American Chemical Societyen_AU
dc.identifier.citationKuang, X. J., Li, Y. D., Ling, C. D., Withers, R. L., & Evans, I. R. (2010). Oxide ion conductivity, phase transitions, and phase separation in fluorite-based Bi38-xMo7+xO78+1.5x. Chemistry of Materials, 22(15), 4484-4494. doi:10.1021/cm101324nen_AU
dc.identifier.govdoc2565en_AU
dc.identifier.issn0897-4756en_AU
dc.identifier.issue15en_AU
dc.identifier.journaltitleChemistry of Materialsen_AU
dc.identifier.pagination4484-4494en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/cm101324nen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2403en_AU
dc.identifier.volume22en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectPhase transformationsen_AU
dc.subjectFluoriteen_AU
dc.subjectOxidesen_AU
dc.subjectIonic conductivityen_AU
dc.subjectDiffractionen_AU
dc.subjectMolybdatesen_AU
dc.titleOxide ion conductivity, phase transitions, and phase separation in fluorite-based Bi38−xMo7+xO78+1.5xen_AU
dc.typeJournal Articleen_AU
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