ISIS Neutron and Muon Source Data Journal

Reversible Redox in a Cerium (IV) Germanate Scheelite: a New Oxygen Storage Material

Abstract: Materials that show oxide-ion mobility (solid electrolytes) and/or reversible uptake and release of oxygen (oxygen storage materials) have important uses in applications relating to energy and the environment, such as in solid-oxide fuel cells and catalysis, such as automotive exhausts, oxidation of organics and purification of hydrogen. Our preliminary experiments on some new materials reveal that loss and uptake of oxygen occurs very easily at moderate temperature and that the crystal structure of the materials change. Although we have crystal structure models for the materials, because they contain heavy metal atoms the location of oxygen atoms is presently poorly defined. Hence neutron diffraction is needed to resolve the structures fully and understand the origin of the oxygen storage property: we will study the materials in situ in gas flow to follow the oxygen loss in real time.

Principal Investigator: Professor Richard Walton
Local Contact: Dr Helen Playford
Experimenter: Dr James Annis
Experimenter: Mr Aron Summer
Experimenter: Mr James Crosland

DOI: 10.5286/ISIS.E.RB1910380

ISIS Experiment Number: RB1910380

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 Richard Walton et al; (2019): Reversible Redox in a Cerium (IV) Germanate Scheelite: a New Oxygen Storage Material , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910380

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