ISIS Neutron and Muon Source Data Journal

Vacancy Distribution 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. Understanding the details of vacancy distribution is a key component in the elucidation of the ionic conduction mechanism and the development of these materials. A total neutron scattering study of vacancy ordering in praseodymium doped ceria as a function pO2 is proposed. Reverse Monte Carlo analysis of total neutron scattering data uniquely affords a method of characterising vacancy ordering in such systems.

Public release date: 06 December 2018

Principal Investigator: Dr Isaac Abrahams
Experimenter: Dr Marzena Leszczynska-Redek
Experimenter: Miss Sal Sabil Sanjana Ahmed
Experimenter: Dr Marcin Holdynski
Experimenter: Dr Stefan Norberg
Experimenter: Miss Ambreen Talib
Experimenter: Mr Ali Shehu
Experimenter: Dr Steve Hull
Experimenter: Professor Franciszek Krok
Experimenter: Dr Marcin Malys

DOI: 10.5286/ISIS.E.67774799

Parent DOI: 10.5286/ISIS.E.RB1520119

ISIS Experiment Number: RB1520119

Part Number: 1

Date of Experiment: 03 December 2015

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; (2015): Vacancy Distribution in Praseodymium Doped Ceria, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.67774799