High temperature structural study of the novel oxide ion conductor Ba3Ti0.9Mo1.1O8.1
New materials, which exhibit high ionic conductivity (¿ 10 mS cm-1) at intermediate temperature (< 600 °C), are needed for the next generation of ceramic hydrogen fuel cells. Such fuel cells will be more cost-effective, with greater longevity offering a key alternative to fossil fuels. We have reported significant oxide ion conductivity in a family of cation deficient disordered hexagonal perovskite derivatives, Ba3NbMO8.5 (M = Mo, W) and Ba7Nb4MoO20. We have now discovered a new oxide ion conductor Ba3Ti0.9Mo1.1O8.1 which has the highest oxide ion conductivity to date. Previous results have shown that hexagonal perovskite derivatives undergo structural rearrangements upon heating which results in an enhancement of the oxide ion conductivity. In order to determine the exact position of the extra oxygen atoms in of Ba3Ti0.9Mo1.1O8.1, and to reveal the presence (or absence) of any thermal rearrangement of the oxygen sites, we propose to perform a variable temperature neutron diffraction study on the D2B diffractometer.
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The recommended format for citing this dataset in a research publication is in the following format:
MCLAUGHLIN Abbie; MARTIN Sophie; RITTER Clemens and TAWSE Dylan. (2023). High temperature structural study of the novel oxide ion conductor Ba3Ti0.9Mo1.1O8.1. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-24-696
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