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US 7,896,950 B2Granted
Plasma-aided method and apparatus for hydrogen storage and adsorption of gases into porous powder
OwnerYashen Xiainventor
Life of this patent
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Abstract
Provided are plasma-aided gas storage methods and apparatus. In one embodiment, a porous powder bed assembly equipped with corona discharge electrodes is used to generate a non-equilibrium plasma of negatively ionized gas molecules which absorb onto porous particles, e.g., activated charcoal, to form a gas storage entity. Gas adsorbed onto the particles is desorbed at moderate temperatures by aid of ultraviolet light illumination.
Claims7
A method, comprising:
- (a) contacting an ionizable gas with at least one porous particle, wherein the at least one porous particle comprises active sites;
- (b) supplying, to the ionizable gas while it is contacting the at least one porous particle, an electric field with a negative voltage sufficient to generate a non-equilibrium plasma comprising negative ions of the ionizable gas;
- and
- (c) adsorbing the negative ions onto the active sites of the at least one porous particle, which is a charcoal particle.
1 more element
Dependencies are inferred from the claim text.