ISIS Neutron and Muon Source Data Journal

Hydrogen diffusion in ice XVII

Abstract: The aim of this proposal is to study the diffusion properties of hydrogen molecules in a recently discovered, highly porous form of ice, named ice XVII, at different values of temperatures and hydrogen filling, through Quasi-Elastic Neutron Scattering (QENS). Owing to the strong incoherent character of the H2 molecule signal, we will be able to efficiently measure the diffusion properties of the guest species within the fully deuterated ice XVII skeleton, which presents an intriguing helicoidal channel structure, with a channel diameter of about 6.10 Å. We expect the hydrogen diffusion here to be faster than that in the channels of normal ice Ih. In addition, we also expect to find experimental evidence of an inherently one-dimensional diffusion in this system, which, for a powder sample, shows up as a non-Lorentzian line-shape in the QENS spectrum.

Principal Investigator: Dr Leonardo del Rosso
Experimenter: Dr Milva Celli
Experimenter: Dr Lorenzo Ulivi
Experimenter: Dr Ferdinando Formisano
Experimenter: Dr Daniele Colognesi
Local Contact: Dr Franz Demmel
Experimenter: Mrs Livia Eleonora Bove

DOI: 10.5286/ISIS.E.RB2310396

ISIS Experiment Number: RB2310396

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 Leonardo del Rosso et al; (2025): Hydrogen diffusion in ice XVII, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310396

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