Oxyanion doping strategies to enhance the ionic conductivity in Ba2In2O5

Jaegil Shin, A Orera, DC Apperley, Peter Slater

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)
245 Downloads (Pure)

Abstract

In this paper we report the successful incorporation of phosphate and sulphate groups into the ionic conductor, Ba2In2O5, 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.
Original languageEnglish
Pages (from-to)874-879
Number of pages6
JournalJournal of Materials Chemistry
Volume21
Issue number3
DOIs
Publication statusPublished - 1 Jan 2011

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