ISIS Neutron and Muon Source Data Journal

Phase behaviour in double substituted lanthanum manganate MIECs

Abstract: Bismuth and iron/nickel substitution in lanthanum manganese oxide yields materials showing mixed ionic-electronic conductivity and are being investigated as cathode materials for solid oxide fuel cells. While low levels of substitution by bismuth and iron or nickel yield a structure of apparent rhombohedral symmetry, detailed investigation by transmission electron microscopy shows two different crystallite types. At higher levels of substitution an orthorhombic symmetry is adopted with evidence of diffuse scattering, characteristic of local ordering. The present proposal seeks to clarify this phase behavior through a combination of high-resolution neutron diffraction and a total neutron scattering study of oxide ion distribution and local ordering in these systems.

Principal Investigator: Dr Isaac Abrahams
Experimenter: Ms Chuying Yu
Experimenter: Dr Haixue Yan
Experimenter: Dr Hangfeng Zhang
Experimenter: Mr Jiyue Wu
Experimenter: Miss Olga Kaimieva
Experimenter: Dr Nadezda Tarakina
Experimenter: Dr Steve Hull
Experimenter: Dr Maria Morosova
Local Contact: Dr Dominic Fortes

DOI: 10.5286/ISIS.E.RB1620091

ISIS Experiment Number: RB1620091

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 double substituted lanthanum manganate MIECs, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620091

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