The present application is generally directed to gas storage materials such as activated carbon comprising enhanced gas adsorption properties. The gas storage materials find utility in any number of gas storage applications. Methods for making the gas storage materials are also disclosed.

The present application is generally directed to gas storage materials such as activated carbon comprising enhanced gas adsorption properties. The gas storage materials find utility in any number of gas storage applications. Methods for making the gas storage materials are also disclosed.

The present invention relates to palladium-platinum system consisting of palladium layer covered with a platinum overlayer consisting of 1 to 10 platinum monolayers deposited on palladium for use as hydrogen storage. Such system can be used in fuel cells, hydride batteries and supercapacitors. A method for increasing hydrogen absorption kinetics of hydrogen absorption/desorption process is also disclosed.

A hydrogen storage device is described. The hydrogen storage device comprises a heater/cooler module (6) and a pressure containment vessel (1) defining an interior volume and having within it: a thermally conducting network (4) having a face in thermal contact with the heater/cooler module (6), the shape of the thermally conducting network (4) being a fractal geometry in two or three dimensions; optionally a metal foam in thermal contact with the thermally conducting network (4); and a hydrogen storage material (5) in thermal contact with the thermally conducting network (4).

A tank configured to reversibly store hydrogen, including: a plurality of cylindrically shaped casings each containing hydrides and each configured to be filled or emptied by the hydrogen being respectively absorbed or desorbed by the hydrides; a solid part made from thermally insulating material and having a low heat capacity being penetrated, within, by a plurality of cylindrically-shaped slots, the diameter of each of which is greater than that of a casing; a tank in which the casing is housed individually in a slot leaving an annular volume free between same such that to be traversed by a heat transfer fluid, following a defined circuit in each annular volume from an inlet common to all the annular volumes to an outlet which is also common.

A hydrogen storage assembly includes at least one wafer formed of a substrate material that produces metal hydride when exposed to a hydrogen-rich carrier fluid. The wafer can be supported by a housing and arranged so that the hydrogen-rich carrier fluid can flow over a reaction surface of the wafer. At least one heating element can be arranged to transfer heat to the wafer to attain an operating temperature suitable for hydrogen charging on the reaction surface. A de-activation material may be provided on the reaction surface for inhibiting formation of surface oxide that impedes hydrogen absorption during charging and hydrogen desorption during discharging. The at least one wafer can include a plurality of monolithic plate wafers spaced apart about a central axis of the assembly. The at least one wafer can include a plurality of monolithic disc wafers in at least one stacked arrangement.

The invention relates a method for storing a solution of methane and a C2-C30 hydrocarbon, the method comprising: mixing gaseous methane and a C2-C30 hydrocarbon to provide a mixture of methane and C2-C30 hydrocarbon, wherein the mixture comprises greater than or equal to about 50 mole percent of methane; maintaining the mixture of methane and C2-C30 hydrocarbon as a liquid solution at a pressure of 30 to 150 bar within a storage vessel, wherein the storage vessel comprises a porous adsorbent framework. The invention also relates to similar methods for storing hydrogen, nitrogen and carbon dioxide. The invention also relates to the use of a non-polar solvent such as a hydrocarbon for storing a non-polar gas in a porous adsorbent framework.

A hydrogen storage device comprising (i) hydrogen gas and (ii) a host framework material. A hydrogen discharge device comprising (i) hydrogen gas and (ii) a host framework material. A method of storing hydrogen comprising introducing hydrogen gas to a host framework material comprising a zeolite, carbon, silica, nickel foam, carbon nanosponge (CNS), a graphene aerogel or a combination thereof under conditions suitable for the formation of hydrogen gas hydrates. A battery comprising a host framework material comprising hydrogen gas hydrates wherein the host framework material comprises a zeolite, carbon, silica, nickel foam, carbon nanosponge (CNS), a graphene aerogel or a combination thereof.

We describe a method of storing a gas, in particular hydrogen, comprising: providing a polymer sponge, wherein said polymer sponge comprises a plurality of catalytic nanoparticles; providing a solution of reactants, catalyzed by said nanoparticles to produce said gas; absorbing said solution into said polymer sponge such that said reactants react within said polymer sponge to produce said gas; wherein said gas is held within said polymer sponge; and wherein said polymer sponge comprises a thermally responsive polymer having a volume which reduces with a change in temperature, such that said gas held within said polymer is extractable by changing a temperature of said polymer sponge.

A nickel-doped Mg nanocrystals encapsulated by molecular-sieving reduced graphene oxide (rGO) layers is disclosed. Dual-channel doping, which combines external (rGO strain) and internal (Ni doping) mechanisms, efficiently promotes both hydriding and dehydriding processes of Mg nanocrystals, simultaneously improving both the kinetic and thermodynamic properties of the material. The composite achieves both high hydrogen storage capacity and excellent kinetics while maintaining robustness. The realization of three complementary functional components in one material-environmentally friendly and earth-abundant Mg for storage, Ni dopants for catalysis, and rGO layers for encapsulation-breaks new ground in metal hydrides and makes solid-state materials viable candidates for hydrogen-fueled applications.