ISIS Neutron and Muon Source Data Journal

Verification of Local Ordering in Praseodymium Doped Ceria

Abstract: Doped cerias are currently being used as oxide ion conducting electrolyte materials in solid oxide fuel cells (SOFCs). Depending on the nature and concentration of the dopant and the oxygen partial pressure (pO2), these materials can also act as mixed ionic-electronic conductors (MIECs). MIECs have a particular advantage for use in SOFCs as they allow for redox reaction over the whole surface of the electrode. This potentially allows for greater efficiency in these devices. We have recently performed a study of local structure in praseodymium doped ceria as a function of pO2 on the Polaris diffractometer. The results appear to show strong evidence of local order not evident in conventional Rietveld analysis. A short experiment is proposed to verify these results and eliminate possible sources of error to enable a publication to proceed.

Principal Investigator: Dr Isaac Abrahams
Experimenter: Dr Marzena Leszczy?ska-Redek
Experimenter: Dr Steve Hull
Local Contact: Dr Ronald Smith
Experimenter: Professor Franciszek Krok
Experimenter: Dr Hangfeng Zhang
Experimenter: Mr Jakub Kotwinski

DOI: 10.5286/ISIS.E.RB1720282

ISIS Experiment Number: RB1720282

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; (2017): Verification of Local Ordering in Praseodymium Doped Ceria, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1720282

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