ISIS Neutron and Muon Source Data Journal

In-situ diffraction and TGA of the hydration reaction of proton conducting perovskites

Abstract: Here the use of the IGAN system for in-situ TGA and neutron diffraction is proposed in order to study the de-hydration of four proton conducting materials. The selected materials are all highly oxygen deficient perovskite systems that show large relative mass changes on de-hydration, e.g. ~ 2-3 %, and display a range of hydration behaviours, from structural transitions (BaTi0.3In0.7O3-d) to the unexpected absence of a significant chemical expansion (BaTi0.5Sc0.5O3-d and BaTi0.3Sc0.7O3-d). Critically, the simultaneous approach should allow us to monitor the changing crystal structure as a function of proton concentration based on the TGA data. In addition we plan to monitor the de-hydration reaction through refinement of the oxygen site(s) occupancies and correlate this with the recorded mass changes. Through this a better understanding of the hydration reaction will be gained.

Principal Investigator: Dr Christopher Knee
Experimenter: Dr Seikh M. Habibur Rahman
Local Contact: Dr Ronald Smith
Experimenter: Dr Stefan Norberg
Experimenter: Professor Paul Henry
Experimenter: Dr Reidar Haugsrud
Experimenter: Dr Tor Bjorheim
Experimenter: Dr Sam Callear [Deactivated]
Experimenter: Professor Sten Eriksson
Experimenter: Mr Nico Torino
Experimenter: Dr Steve Hull

DOI: 10.5286/ISIS.E.RB1510335

ISIS Experiment Number: RB1510335

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 Christopher Knee et al; (2016): In-situ diffraction and TGA of the hydration reaction of proton conducting perovskites , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510335

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