ISIS Neutron and Muon Source Data Journal

Cation coordination and oxide ion vacancy distribution in tetravalent substituted BIMEVOXes

Abstract: Oxide ion conductors based on bismuth oxide based have recently been demonstrated as viable alternatives to traditional electrolytes for intermediate temperature solid oxide fuel cells. The BIMEVOX family of solid electrolytes based on substitution of V and/or Bi in Bi4V2O11-delta, exhibit some of the highest known oxide ion conductivities at low and intermediate temperature. We have previously predicted that in the Ge4+ and Sn4+ substituted BIMEVOXes, these cations adopt different coordination geometries, which leads to different solid solution limits and phase behaviour. Using reverse Monte Carlo analysis of total neutron and X-ray scattering we propose to examine differences in the cation coordination and oxide ion vacancy distribution in these BIMEVOX systems and compare these with the theoretical predictions.

Principal Investigator: Dr Isaac Abrahams
Experimenter: Professor Franciszek Krok
Experimenter: Mr Yajun Yue
Local Contact: Dr Ronald Smith
Experimenter: Dr Haixue Yan
Experimenter: Dr Steve Hull
Experimenter: Mrs Aleksandra Dziegielewska

DOI: 10.5286/ISIS.E.RB1820126

ISIS Experiment Number: RB1820126

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Isaac Abrahams et al; (2019): Cation coordination and oxide ion vacancy distribution in tetravalent substituted BIMEVOXes, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820126

Data is released under the CC-BY-4.0 license.