High temperature neutron diffraction study under flowing 5%H2 and O2 of the cation and charge ordered SOFC electrode material, NdBaMn2O5+d
The aim of the in situ high temperature experiment using D20 concerns the potential SOFC electrode material, the A-site and charge ordered double perovskite, NdBaMn2O5. On heating under 5%H2 up to 900 °C, we want to (i) monitor the charge order/disorder phase transition, (ii) monitor the growth of the new tetragonal phase that forms under hydrogen at T > 800 °C and characterize its structure and oxygen content/oxygen positions and (iii) investigate the structural evolution between NdBaMn2O5 and NdBaMn2O6 to check whether the transformation is topoelectronic and characterize accurately the structure of NdBaMn2O6 which is a subject of controversy since different space groups such as P4/mmm, Pmmm as well as P-1 and have been suggested. D20 will be used in its high take-off geometry; it is ideally suited due to the in situ nature of the experiment and the timescales of the kinetics of oxygen intercalation (seconds to minutes). No other instruments at ILL fulfil the requirement of fast data collection times while retaining good resolution and very high flux for full pattern refinement.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
BAHOUT Mona; DORCET Vincent; Thomas C. Hansen; PAOFAI SERGE and TONUS florent. (2017). High temperature neutron diffraction study under flowing 5%H2 and O2 of the cation and charge ordered SOFC electrode material, NdBaMn2O5+d. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-25-250
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.