ISIS Neutron and Muon Source Data Journal

The structure of THF-water mixtures and clathrates in nanoscale confinement - 2

Abstract: Understanding the properties of fluids confined to nanometer scale pores is essential to predict and control a wide range of natural and industrial processes. In this proposal we would like to study the structure of mixtures of tetrahydrofuran (C4H8O, THF) and water in mesoporous silicas with pores of the order 3 - 10nm diameter. A the composition we would like to study (1:3.3 THF:water) the liquids are miscible at ambient temperature, but the mixture sites under a critical point for closed-loop phase separation. By measureing the structure in confinement we will be able to determine whether the interfaces destabilise the phase diagram, to cause surface adsorption of THF. Our hypothesis based on our previous experiment at a lower concentration (RB2210033) is that we will see demixing - we are excited to confirm and quantify this effect. We note also that THF-water is a clathrate forming system, and parallel studies are unearthing fascinating confinement effects at lower temperatures.

Experimenter: Ms Miroslava Novoveska
Experimenter: Mr Syed Gilani
Experimenter: Dr Adam Clancy
Local Contact: Dr Tom Headen
Experimenter: Dr Marta Falkowska
Experimenter: Professor Neal Skipper
Experimenter: Mr Chenwei Zheng
Experimenter: Mr Aasim Shaffi

DOI: 10.5286/ISIS.E.RB2320222

ISIS Experiment Number: RB2320222

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:
Ms Miroslava Novoveska et al; (2023): The structure of THF-water mixtures and clathrates in nanoscale confinement - 2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2320222

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