ISIS Neutron and Muon Source Data Journal

Investigation into oxide vacancy ordering in the Ce1-xLnxO2-x/2 (Ln = La and Nd, x= 0.4 and 0.6) system, materials for hydrogen production

Abstract: La-doped CeO2 materials are of great interest because of their possible use in high temperature electrochemical devices for energy production and storage, such as membranes for hydrogen production and solid oxide fuel cells.However, there is a significance controversy regarding the crystalline structure of these materials and its relation with their electrical properties, where different authors report divergent results. In our work, we found out that in CeO2 systems doped with low contents of lanthanum, a simple structure was stabilized, where for higher lanthanum contents a different one was formed, due to an ordering of the oxide vacancies of the material.Neutron studies, at room and high temperature, are key to understand the changes in structure of these materials, as well as their behaviour on heating, where changes in symmetry are observed,

Principal Investigator: Dr Jose Porras-Vazquez
Experimenter: Mr Javier Zamudio García
Local Contact: Dr Ronald Smith

DOI: 10.5286/ISIS.E.RB1920092

ISIS Experiment Number: RB1920092

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 Jose Porras-Vazquez et al; (2019): Investigation into oxide vacancy ordering in the Ce1-xLnxO2-x/2 (Ln = La and Nd, x= 0.4 and 0.6) system, materials for hydrogen production, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920092

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