ISIS Neutron and Muon Source Data Journal

Hydrogen diffusion in Palladium-Silver membranes measured by QENS

Abstract: Hydrogen selective membranes based on palladium are important for technological processes such as isotopic separation and gas purification.In general, a Pd membrane when hydrogenated becomes brittle after a certain number of cycles of the α-β hydride transformation due to the subsequent lattice expansion. On the contrary, in Pd-Ag alloys, the lattice has been already expanded by the effect of Ag substitutional atoms, and so it is much less influenced by hydrogen uploading and, consequently, less brittle than in the pure Pd case Recently elastic and inelastic neutron scattering measurements were performed at ILL (D1B) and ISIS (MARI) to assess H occupancy and PDoS. H diffusivity at micro-scale is important to be measured for a thorough characterization of these materials. We propose a QENS measurement on OSIRIS at the same (T,p) of the MARI and D!B experiments.

Principal Investigator: Dr Antonino Pietropaolo
Experimenter: Dr Daniele Colognesi
Experimenter: Dr Alessia Santucci
Experimenter: Dr Franz Demmel
Experimenter: Dr Silvano Tosti
Experimenter: Dr Alfonso Pozio
Experimenter: Mr Simon Steel
Experimenter: Dr Dan Bull

DOI: 10.5286/ISIS.E.RB1620273

ISIS Experiment Number: RB1620273

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Antonino Pietropaolo et al; (2016): Hydrogen diffusion in Palladium-Silver membranes measured by QENS, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620273

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