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- The latest-discovered form of ice (XVII), obtained by application of an annealing treatment to a H 2 -filled ice sample in the C 0 -phase, could be inserted in the energy-storage context due to its surprising capacity of hydrogen physisorption, when exposed to even modest pressure (few mbars at temperature below 40 K), and desorption, when a thermal treatment is applied.
www.mdpi.com/2078-1547/8/1/3
Feb 8, 2017 · The comparison of ice XVII with materials with a similar mechanism of hydrogen adsorption like metal-organic frameworks shows interesting performances of ice XVII in terms of hydrogen...
Feb 8, 2017 · Any application of this material to realistic hydrogen tanks should take into account the thermodynamic limit of metastability of ice XVII, i.e., temperatures below about 130 K. Hydrogen storage is one of the most addressed issues in the green-economy field.
Ice XVII shows interesting properties from the perspective of a possible use as a novel material for hydrogen storage, despite the temperature limits of metastability of the ice...
In this study, published in Journal of Chemical Physics, researchers from the Consiglio Nazionale delle Ricerche and ISIS used ice XVII made with D 2 O as a porous matrix to host molecular hydrogen, nitrogen and oxygen at near ambient pressure (0.5-3 bar) and low temperature (20-90 K).
H2 molecules adsorbed into the channels of ice XVII are represented as randomly oriented dumbbells. The orientation of the water molecules satisfies the Bernal–Fowler rules. This picture is produced by us with VESTA software [21].
Hydrogen storage is one of the most addressed issues in the green-economy field. The latest-discovered form of ice (XVII), obtained by application of an annealing treatment to a H 2 -filled ice sample in the C 0 -phase, could be inserted in the energy-storage c...
