High proton conductivity in Ba5Er2Al2ZrO13, a hexagonal perovskite-related oxide with intrinsically oxygen-deficient layers

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dc.contributor.authorMurakami, Ten_AU
dc.contributor.authorHester, JRen_AU
dc.contributor.authorYashima, Men_AU
dc.date.accessioned2020-08-04T01:33:19Zen_AU
dc.date.available2020-08-04T01:33:19Zen_AU
dc.date.issued2020-05-15en_AU
dc.date.statistics2020-07-27en_AU
dc.description.abstractFor the development of proton-based electrolytes, high proton conductivity at intermediate temperatures (300–600 °C) is crucial, but the available materials have been confined to a limited number of the structure families, such as cubic perovskites. Herein, we report Ba5Er2Al2ZrO13, a hexagonal perovskite-related oxide, as a new class of proton conductors exhibiting higher conductivities than 10–3 S cm–1 between 300 and 1200 °C. The protons as charge carriers are found to exist in the inherently oxygen-deficient h′ layer of Ba5Er2Al2ZrO13, which are supported by Rietveld analysis of neutron-diffraction data, bond-valence-based energy calculations, and thermogravimetric analysis. Our discovery of a new structure family of proton conductors with the inherently oxygen-deficient h′ layer offers a strategy in designing superior proton conductors based on hexagonal perovskite-related oxides. © 2020 American Chemical Societyen_AU
dc.identifier.citationMurakami, T., Hester, J. R., & Yashima, M. (2020). High proton conductivity in Ba5Er2Al2ZrO13, a hexagonal perovskite-related oxide with intrinsically oxygen-deficient layers. Journal of the American Chemical Society, 142(27), 11653-11657. doi:10.1021/jacs.0c02403en_AU
dc.identifier.govdoc9782en_AU
dc.identifier.issn0002-7863en_AU
dc.identifier.issue27en_AU
dc.identifier.journaltitleJournal of the American Chemical Societyen_AU
dc.identifier.pagination11653-11657en_AU
dc.identifier.urihttps://doi.org/10.1021/jacs.0c02403en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9697en_AU
dc.identifier.volume142en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectOxidesen_AU
dc.subjectLayersen_AU
dc.subjectElectric conductivityen_AU
dc.subjectElectric conductorsen_AU
dc.subjectProton conductivityen_AU
dc.subjectPerovskitesen_AU
dc.subjectTemperature rangeen_AU
dc.titleHigh proton conductivity in Ba5Er2Al2ZrO13, a hexagonal perovskite-related oxide with intrinsically oxygen-deficient layersen_AU
dc.typeJournal Articleen_AU
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