ISIS Neutron and Muon Source Data Journal

QENS study to understand the the dynamics of supercooled water undergoing segmental freezing in nanopores

Abstract: It is observed that water remains in liquid phase down to temperature 235K while confined in nano-pores having average pore size ~1nm. Below 235K, more than 85 vol% of water inside the pores is still in supercooled liquid phase even at temperature down to 100K; only ~15 vol% of water crystallizes mostly into cubic ice. We assume that the supercooled water staying at the core of the pore crystallizes due to lesser binding with the pore wall. A large fraction of water staying near the pore wall remains in liquid phase due to lack of tetrahedral structure. The difference in the dynamics of the core and surface water in confined supercooled state may represent the onset of the variation of liquid-solid phase transition in two different segments. Our objective is to distinguish the dynamics of water at the core and surface of the pore that determines segmental freezing of confined water.

Principal Investigator: Dr Dhanadeep Dutta
Local Contact: Dr Sanghamitra Mukhopadhyay
Experimenter: Miss Debarati Das

DOI: 10.5286/ISIS.E.RB2368035

ISIS Experiment Number: RB2368035

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 Dhanadeep Dutta et al; (2024): QENS study to understand the the dynamics of supercooled water undergoing segmental freezing in nanopores, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2368035

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