A solid-state hydrogen storage device and a solid-state hydrogen storage system are provided. The solid-state hydrogen storage device includes a storage unit that stores a first hydrogen storage material therein and a heat medium pipe that is disposed in the storage unit including a heat medium and a second hydrogen storage material. The heat medium pipe includes a separating pipe disposed therein to separate the heat medium and the second hydrogen storage material from each other, and the second hydrogen storage material is disposed in the separating pipe.

A hydrogen compression system includes an inner container made of a non-magnetic element and having a hydrogen inlet/outlet portion through which hydrogen flows in or out of the inner container, a metal hydride material accommodated in the inner container, an outer container configured to surround the inner container and having an inlet/outlet port through which hydrogen flows in or out of the outer container, and an induction heating unit disposed between the inner container and the outer container and configured to heat the metal hydride material by induction heating, thereby obtaining an advantageous effect of simplifying a structure and process for heating the metal hydride material and quickly heating the metal hydride material to an accurate temperature.

Provided are a hydrogen storage material containing a TiFe-based alloy, a hydrogen storage container including the hydrogen storage material, and a hydrogen supply apparatus including the hydrogen storage container. The hydrogen storage material contains an alloy of an elemental composition represented by Formula (1), in which, in 1000 magnified COMP image of cross section of the alloy obtained by EPMA, 25 or more and 3000 or less pieces of a phase in which R is enriched and that have phase sizes of 0.1 m or more and 10 m or less are present in a field of view of 85 m120 m of the COMP image, and an R-enriched phase area ratio of total area S.sub.R m.sup.2 of pieces of the phase present in the field of view to area S m.sup.2 of field of view is 0.3% or more and 6.0% or less:

Ti.sub.(1ab)R.sub.aM1.sub.bFe.sub.cMn.sub.dM2.sub.eC.sub.f(1).

A catalyst used for dehydrogenation of an organic hydrogen-storage material to generate hydrogen, a support for the catalyst, and a preparation process thereof are presented. A hydrogen-storage alloy and a preparation process thereof are provided. A process for providing high-purity hydrogen, a high-efficiently distributed process for producing high-purity and high-pressure hydrogen, a system for providing high-purity and high-pressure hydrogen, a mobile hydrogen supply system, and a distributed hydrogen supply apparatus are also described.

A catalyst used for dehydrogenation of an organic hydrogen-storage material to generate hydrogen, a support for the catalyst, and a preparation process thereof are presented. A hydrogen-storage alloy and a preparation process thereof are also provided. A process for providing high-purity hydrogen, a high-efficiently distributed process for producing high-purity and high-pressure hydrogen, a system for providing high-purity and high-pressure hydrogen, a mobile hydrogen supply system, and a distributed hydrogen supply apparatus are also described.

A catalyst used for dehydrogenation of an organic hydrogen-storage material to generate hydrogen, a support for the catalyst, and a preparation process thereof are presented. A hydrogen-storage alloy and a preparation process thereof are provided. A process for providing high-purity hydrogen, a high-efficiently distributed process for producing high-purity and high-pressure hydrogen, a system for providing high-purity and high-pressure hydrogen, a mobile hydrogen supply system, and a distributed hydrogen supply apparatus are also described.

The invention relates to metal hydrides for storing hydrogen, in particular AB2 based metal hydrides, methods of production and uses thereof.

A device for in-situ hydrogen absorption and hydrolysis hydrogen production based on magnesium-based solid hydrogen storage alloys and use thereof are provided. The device can directly inject hydrogen into a stainless steel tank to allow the magnesium alloy absorbing hydrogen to generate the hydrogenated magnesium alloy. When hydrogen is needed later, water is introduced to hydrolyze the hydrogenated magnesium alloy to produce the hydrogen. In this process, the magnesium alloy does not need to be taken out and exposed to the air after absorbing hydrogen, nor does it need further treatment, such that the hydrogen absorption and hydrolysis hydrogen production of the magnesium alloy can be completed in steps in the same device, which greatly saves manufacturing time and cost of the hydrolysis hydrogen production tank.

Hydrogen storage materials being inexpensive and having hydrogen absorption (storage) and desorption properties suitable for hydrogen storage are provided. The hydrogen storage materials have alloys with an elemental composition of Formula (1), a hydrogen storage container containing the hydrogen storage material, and a hydrogen supply apparatus including the hydrogen storage container:
La.sub.aCe.sub.bSm.sub.cNi.sub.dM.sub.e (1)
wherein M is Mn or both of Mn and Co, a satisfies 0.60a0.90, b satisfies 0b0.30, c satisfies 0.05c0.25, d satisfies 4.75d5.20, e satisfies 0.05e0.40, a+b+c=1, and d+e satisfies 5.10d+e5.35.