A heater assembly for use in a hydrogen generator can be retracted to facilitate insertion and removal of a replaceable fuel unit without damaging the heater assembly or the fuel unit and extended to provide good thermal contact with the fuel unit during use of the hydrogen generator. The heater assembly includes a support member, a heater, and an actuator for extending and retracting the heater assembly. When the heater is energized it heats the actuator, thereby extending the heater assembly to contact the adjacent fuel unit, and when the heater is deenergized the actuator cools to retract the heater assembly and provide a gap between the heater assembly and the adjacent fuel unit. The actuator is movably secured to the heater or the support member by a retainer such that an end of the actuator is movable within the retainer as the actuator changes shape during heating and cooling.

The present invention relates to an apparatus, detachably mountable to the external surface of an aircraft. More specifically, the present invention relates to a fully self-contained apparatus comprising an electrical device, such as a Directed Energy Weapon (DEW), and a corresponding thermal management system and power supply.

A nanocomposite metal material includes a carrier formed of Zr and two-element metal particles supported on the carrier. The two-element metal is formed of Cu and Ni, and a degree of oxidation of the carrier is more than 31% and 100% or less. In a case where the nanocomposite metal material is disposed in a reaction furnace of a thermal reactor, the inside of the reaction furnace is brought into a vacuum state, and the inside of the reaction furnace is heated to a temperature range of 250? C. or higher and 350? C. or lower with a heating mechanism included in the thermal reactor while supplying at least one of hydrogen gas and deuterium gas into the reaction furnace, excessive heat of the nanocomposite metal material is 100 W/kg or more.

The present invention relates to a system for storing dihydrogen, characterized in that it comprises a suspension of elements, in the form of hydride particles having a mean diameter of between 1 nm and 800 nm, suspended in an alloy of at least two alkali metals, chosen from Na (sodium), K (potassium) and Li (lithium). The invention also relates to a method for storing dihydrogen in a system as described above, a method for producing dihydrogen from such a system and also a device for implementing the latter method.

A method for making a metal-hydride slurry includes adding metal to a liquid carrier to create a metal slurry and hydriding the metal in the metal slurry to create a metal-hydride slurry. In some embodiments, a metal hydride is added to the liquid carrier of the metal slurry prior to hydriding the metal. The metal can be magnesium and the metal hydride can be magnesium hydride.

The electronic structure of nanowires, nanotubes and thin films deposited on a substrate is varied by doping with electrons or holes. The electronic structure can then be tuned by varying the support material or by applying a gate voltage. The electronic structure can be controlled to absorb a gas, store a gas, or release a gas, such as hydrogen, oxygen, ammonia, carbon dioxide, and the like.

A range of alloys of Mg and at least one of Cu, Si, Ni and Na alloys that is particularly suitable for hydrogen storage applications. The alloys of the invention are formed into binary and ternary systems. The alloys are essentially hypoeutectic with respect to their Cu and Ni contents, where one or both of these elements are present, but range from hypoeutectic through to hypereutectic with respect to their Si content when that element is also present. The terms hypoeutectic and hypereutectic do not apply to Na if it is added to the alloy. The alloy compositions disclosed provide high performance alloys with regard to their hydrogen storage and kinetic characteristics. They are also able to be formed using conventional casting techniques which are far cheaper and more amenable to commercial use than the alternative ball-milling and rapid solidification techniques which are much more expensive and complex. Each of the individual binary Mg-E systems, where E=Cu, Ni or Si, forms a eutectic comprising of Mg metal and a corresponding Mg.sub.xE.sub.y intermetallic phase.

The present invention relates to a porous nano structure and a method of manufacturing same. The porous nano structure exhibits excellent mechanical strength and has a wide specific surface area and is therefore useful as an absorbent, a vibration absorber, a sound absorber, a shock absorber, a catalyst support, a membrane for separation, etc., and can be applied to various technical fields such as electronics, composite materials, sensors, catalysts, energy storage materials, and ultra-high capacity storage batteries. In particular, the porous nano structure exhibits excellent hydrogen storage capability and is thus very useful as a hydrogen storage material.

The present disclosure provides that a catalyst exhibits excellent catalytic activity in both a hydrogenation involving a hydrogen-storing body containing an aromatic compound, and a dehydrogenation involving a hydrogen-supplying body containing a hydrogen derivative of the aromatic compound, wherein the catalyst contains a nanocrystalline composite having two or more accumulated flake-like nanocrystalline pieces in a connected state, the flake-like nanocrystalline pieces each having a main surface and an end surface, and in that the nanocrystalline composite is configured such that, when two adjacent nanocrystalline pieces are viewed, an end surface of at least one of the nanocrystalline pieces is connected.

A hydrogen storage composition, a hydrogen storage container and a method for producing the hydrogen storage container are provided. The hydrogen storage composition includes a thermally-conductive material, a hydrogen storage material, and optionally a granular elastic material. The hydrogen storage container includes a canister body and the hydrogen storage composition. After the hydrogen storage composition is placed into a canister body, a vacuum environment within the canister body is created, and a first weight of the canister body is recorded. Then, hydrogen gas is activated and charged into the canister body, and a second weight of the canister body is recorded. Then, a hydrogen storage amount is calculated according to the first weight and the second weight. If the hydrogen storage amount reaches the predetermined value, the hydrogen storage container is produced.