Neutron diffraction study of the mixed oxide ion and proton conductor Sr3-xCaxV2O8
Sr3V2O8 crystallises in the palmierite structure and is the first compound with this structure to exhibit significant oxide ion and proton conductivity. It is important to investigate new materials for application in next generation hydrogen fuel cells. In order to further investigate the mechanism of ionic conductivity in palmierites and to tune the conductivity, the series Sr3-xCaxV2O8 has been synthesised (x = 0.00, 0.10, 0.15, 0.20). Impedance spectroscopy results show an enhancement of both the oxide ion and proton conductivity by almost an order of magnitude upon increasing x from 0 - 0.2. In order to determine the exact position of the oxygen atoms in of Sr3-xCaxV2O8, and to reveal the presence (or absence) of any thermal rearrangement of the oxygen sites, we propose to perform a neutron diffraction study on the D2B diffractometer at both 25 °C and 600°C. The palmierite structure is a new crystal system to display oxide ion and proton conductivity. This significant study will give us more important information for understanding the relationship behind the ionic conductivity and the structural disorder in palmierites.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
MCLAUGHLIN Abbie; MARTIN Sophie; RITTER Clemens and Dylan N. Tawse. (2023). Neutron diffraction study of the mixed oxide ion and proton conductor Sr3-xCaxV2O8. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-23-793
This data is not yet public
This data is not yet public
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.