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Issue 3, 2011
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Oxyanion doping strategies to enhance the ionic conductivity in Ba2In2O5

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Abstract

In this paper we report the successful incorporation of phosphate and sulfate 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.

Graphical abstract: Oxyanion doping strategies to enhance the ionic conductivity in Ba2In2O5

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Publication details

The article was received on 22 Jun 2010, accepted on 28 Oct 2010 and first published on 11 Nov 2010


Article type: Paper
DOI: 10.1039/C0JM01978J
Citation: J. Mater. Chem., 2011,21, 874-879
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    Oxyanion doping strategies to enhance the ionic conductivity in Ba2In2O5

    J. F. Shin, A. Orera, D. C. Apperley and P. R. Slater, J. Mater. Chem., 2011, 21, 874
    DOI: 10.1039/C0JM01978J

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