ISIS Neutron and Muon Source Data Journal

Ultra-confined two-dimensional ice with fast local diffusion at cryogenic temperatures

Abstract: Porous media constitute a broad class of materials which play key roles in geological processes and the modern chemical industry. The properties of confined fluids may be strongly modified from their bulk counterparts. Water confined within microporous minerals presents an extreme case, where the water is trapped within cages which are not much larger than the water molecule itself. For example, water in the mineral hemimorphite forms a planar hydrogen bond network with hydroxyl groups in the crystal, producing a network of two-dimensional (2D) ice. The recent QENS study of hemimorphite provides clear evidence that the confined water undergoes fast local diffusion with characteristic times similar to bulk water at 300K, even when the mineral is cooled to cryogenic temperatures. We are proposing to study the quantum state of the water protons in this 2D ice using the VESUVIO spectrometer.

Principal Investigator: Dr Alexander Kolesnikov
Experimenter: Dr Timothy Prisk
Experimenter: Dr Lawrence Anovitz
Experimenter: Professor George Reiter
Local Contact: Dr Matthew Krzystyniak
Experimenter: Dr Timothy Prisk

DOI: 10.5286/ISIS.E.RB1520156

ISIS Experiment Number: RB1520156

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 Alexander Kolesnikov et al; (2015): Ultra-confined two-dimensional ice with fast local diffusion at cryogenic temperatures, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520156

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