ISIS Neutron and Muon Source Data Journal

Phase behaviour in lanthanum antimony niobate proton conductors

Abstract: Antimony substituted lanthanum niobium oxide is a recently developed proton conductor with potential use in fuel cells, gas sensors and steam electrolysers Our preliminary work has revealed that not only does antimony substitution enhance conductivity, it also stabilizes the highly conducting scheelite phase to room temperature in contrast to the unsubstituted system which exhibits the more poorly conducting furgusonite structure at ambient temperatures. Other work suggests that the oxide ion separation distance plays a major role in determining the enthalpy of proton diffusion in these systems. A study of the correlation between electrical behaviour and oxide ion separation distance and distortion in the metal coordination environment using neutron diffraction is proposed. Details of the individual contributions of antimony and niobium will be studied using a total scattering approach.

Principal Investigator: Dr Isaac Abrahams
Experimenter: Ms Chuying Yu
Experimenter: Dr Steve Hull
Experimenter: Dr Hangfeng Zhang
Experimenter: Dr Aleksandra Mielewczyk-Gryn
Experimenter: Dr Maria Gazda

DOI: 10.5286/ISIS.E.RB1610168

ISIS Experiment Number: RB1610168

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): Phase behaviour in lanthanum antimony niobate proton conductors, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610168

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