Water cavities of sH clathrate hydrate stabilized by molecular hydrogen: phase equilibrium measurements.
In this experimental phase equilibrium study, we show for the first time that it is possible to stabilize structure sH of hydrogen clathrate hydrate with the help of some selected promoters. It was established that the formation pressures of these systems are significantly higher than that of structure sII of hydrogen clathrate hydrate when tetrahydrofuran (THF) is used as a promoter. Although no experimental evidence is available yet, it is estimated that the hydrogen storage capacity of structure sH can be as high as 1.4 wt % of H2, which is about 40% higher compared to the hydrogen storage capacity in structure sII.
Duarte
Ana Rita C
AR
Delft University of Technology, Faculty of Applied Sciences, DelftChemTech, Physical Chemistry and Molecular Thermodynamics, Julianalaan 136, 2628 BL Delft, The Netherlands.
Shariati
Alireza
A
Rovetto
Laura J
LJ
Peters
Cor J
CJ