ISIS Neutron and Muon Source Data Journal

Ordering in La/W Double Substituted Bismuth Oxide Based Fluorites

Abstract: Materials that show fast oxide ion conduction have potential applications as electrolytes in devices such as solid oxide fuel cells (SOFCs), gas sensors and gas separation membranes. While bismuth oxide shows the highest oxide ion conductivity of any material it can only be stabilised at lower temperatures through partial substitution of bismuth by other cations. A total scattering study of W and La substituted bismuth oxide based electrolytes is proposed, with a view to examining details of local coordination and vacancy ordering. Fluorite based phases will be examined in two solid solution systems. Both systems show a highly conducting fully disordered delta-Bi2O3 type phase at elevated temperature, which can be stabilised to room temperature depending on composition. The results from the proposed study will be used to shed light on the conduction mechanisms in these systems.

Principal Investigator: Dr Isaac Abrahams
Experimenter: Dr Marcin Malys
Experimenter: Mr Ali Shehu
Local Contact: Dr Ronald Smith
Experimenter: Dr Anna Borowska
Experimenter: Dr Stefan Norberg
Experimenter: Dr Steve Hull
Experimenter: Professor Franciszek Krok

DOI: 10.5286/ISIS.E.RB1620096

ISIS Experiment Number: RB1620096

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; (2016): Ordering in La/W Double Substituted Bismuth Oxide Based Fluorites, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620096

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