Structural phase transitions in proton conducting BaCe0.8Y0.2O3-d as function of temperature and atmosphere.

DOI

The structure dependence of BaCe0.8Y0.2O3-d (BCY-20), a leading proton conducting material, will be studied as a function of temperature and, critically, controlled atmosphere for the first time. Previous neutron studies and our own preliminary PXRD indicate that the RT structure is influenced by the level of hydration. We now wish to follow the structural evolution under realistic operating conditions using the recently developed in-situ gas flow cell and deuteration capabilities and request five days on HRPD. The resolution of HRPD is required to follow the complex sequence of phase transitions and differentiate between the chemical expansion, linked to protonation and reduction of Ce4+, and thermal expansion effects.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24089260
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24089260
Provenance
Creator Dr Kevin Knight; Professor Tor Grande; Professor Sten Eriksson; Dr Christopher Knee; Dr Annika Eriksson Andersson; Mr Vegar Oygarden; Dr Sverre Selbach
Publisher ISIS Neutron and Muon Source
Publication Year 2015
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2012-08-02T08:38:07Z
Temporal Coverage End 2012-10-09T07:29:02Z