ISIS Neutron and Muon Source Data Journal

Experimental validation of solid hydrogen phases in porous materials via neutron diffraction

Abstract: Metallic hydrogen has long been theorised to be a close-to-room temperature superconductor, but is only predicted to form at GPa pressures. Instead of using extremely high pressures to form a metallic solid, molecular confinement of H2 via adsorption in optimally sized nanopores is a promising alternative. These experiments will utilize neutron diffraction to experimentally validate the results of our preliminary Raman studies, which indicate the presence of a hexagonal crystalline high pressure phase of hydrogen in a porous carbon. Neutron diffraction data on crystalline phases of the solid hydrogen present at a range of gas pressures could lead to definitive experimental evidence for the predicted high pressure phases of hydrogen, and may demonstrate pre-densification of hydrogen via nanoconfinement as a route to forming otherwise unobtainable high pressure hydrogen phases.

Principal Investigator: Professor Valeska Ting
Local Contact: Dr Ivan da Silva Gonzalez
Experimenter: Dr Mi Tian
Experimenter: Dr Lewis Terry
Experimenter: Professor Simon Bending
Experimenter: Professor Tim Mays
Experimenter: Dr Huan Doan
Experimenter: Miss Estefani Marchiori Pereira
Experimenter: Dr Dan Reed

DOI: 10.5286/ISIS.E.RB1910448

ISIS Experiment Number: RB1910448

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:
Professor Valeska Ting et al; (2019): Experimental validation of solid hydrogen phases in porous materials via neutron diffraction, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910448

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