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Investigating the metastabilities surrounding hydrogen hydrates for energy storage applications
Shebowich, Michelle Arias, Melissa Grim, Robert Gary Kerkar, Prasad Sum, Amadeu Koh, Carolyn
Shebowich, Michelle
Arias, Melissa
Grim, Robert Gary
Kerkar, Prasad
Sum, Amadeu
Koh, Carolyn
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2011-08
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Abstract
Hydrogen hydrate in its most thermodynamically stable form, sII, holds a maximum 3.8 wt. % hydrogen, less than the 5.5 wt. % needed to meet the Department of Energy 2015 goal. This novel work explored H2 hydrate structure, occupancy, and metastability during seeding/templating and guest substitution to ultimately increase hydrogen storage capacity in hydrates. The phenomenon of templating was evaluated by mixing pre-formed hydrate of a desired structure with ice to propagate its structure with another guest. Experiments studying the diffusion of hydrate guests (H2, D2) were also performed.
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