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Oxyanion doping strategies to enhance the ionic conductivity in Ba2In2O5

AuthorsOrera, Alodia; Slater, P. R.
Issue Date2011
PublisherRoyal Society of Chemistry (Great Britain)
CitationJournal of Materials Chemistry 21(3): 874-879 (2011)
AbstractIn this paper we report the successful incorporation of phosphate and sulfate groups into the ionic conductor, Ba2In2O 5, with the samples analysed through a combination of X-ray diffraction, NMR, TGA, Raman spectroscopy and conductivity measurements. The results show that such oxyanion incorporation leads to a conversion from an ordered brownmillerite-type structure to a disordered perovskite-type, and hence increases the conductivity at temperatures <800 °C. In wet atmospheres, there is evidence for a significant enhancement of the conductivity through a protonic contribution.
Identifiersdoi: 10.1039/C0JM01978J
issn: 0959-9428
e-issn: 1364-5501
Appears in Collections:(ICMA) Artículos
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