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 a hydrogen storage device (1), at least comprising a container (2) having a volume (3) and having a wall (4) surrounding the volume (3) and, arranged in the container (2), at least one body (6) which consists of a material mixture (5) and which comprises at least a first material (7) capable of storing hydrogen and a second material (8) as a binder for the first material (7); wherein the first material (7) is distributed in a matrix of the second material (8).

Described herein are compositions and methods for the chemical storage and release of hydrogen gas. The described compositions may be useful as fuel additives for hydrogen consuming applications, including aviation. The provided compositions are flexible and can be tailored to be lightweight, have high energy capacity, have various methods of activation and rapidly release the stored hydrogen.

The present disclosure discloses a system for renewable hydrogen generation and storage. The system comprises at least one solar photovoltaic (PV) panel; an atmospheric water generator configured to extract water from a humid atmosphere; a water electrolyzer configured receive the water extracted by the atmospheric water generator and configured to produce hydrogen and oxygen from the water using electrolysis; and a metal hydride storage tank for storing the hydrogen produced by the water electrolyzer. Waste heat generated by the atmospheric water generator is used for thermal management of the metal hydride storage tank. A method for producing and storing hydrogen is also provided.