ISIS Neutron and Muon Source Data Journal

Ba3Mo1-xNb1+xO8.5-x/2 novel oxide ion conductor: Local structure and structure-property relationships

Abstract: Oxide ion conductors are researched as potential electrolytes in solid oxide fuel cells (SOFCs). Yttria-stabilized zirconia is currently the most commonly used electrolyte in SOFCs, leading to very high operating temperatures of 800 - 1000 °C, precluding a more widespread use of these devices. In order to reach the goal of lower temperature (< 800 °C) SOFCs new oxide ion conducting materials are sought. Ba3MoNbO8.5 adopts a novel structure, which is a hybrid of the 9R perovskite polytype (A3B2O9) and the palmierite structure (A3B2O8). It is a pure oxide ion conductor under standard conditions with a conductivity of 2.2 × 10-3 S cm-1 at 600 °C.We request 3 days on POLARIS and 1 day on XPDF (I15-1) for neutron and X-ray total scattering experiments on Ba3Mo1-xNb1+xO8.5-x/2 (x = 0, 0.3) materials to elucidate the structure-property relationships in these new solid electrolytes.

Principal Investigator: Professor Ivana Evans
Experimenter: Dr Phil Chater
Experimenter: Professor John Evans
Experimenter: Dr Matthew Tucker
Local Contact: Dr Helen Playford
Experimenter: Professor John Irvine
Experimenter: Dr Matthew Chambers
Experimenter: Professor Abbie McLaughlin
Experimenter: Miss Kirstie McCombie

DOI: 10.5286/ISIS.E.RB1810088

ISIS Experiment Number: RB1810088

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:
Professor Ivana Evans et al; (2018): Ba3Mo1-xNb1+xO8.5-x/2 novel oxide ion conductor: Local structure and structure-property relationships, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810088

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