Device for the generation of hydrogen, apparatuses that contain the device, and their use

Device comprising:

• a gastight tank (13), a pump (11), a heat-exchanger (18-21) and a reactor (10) for the production of hydrogen gas by catalyzed hydrolysis of aqueous alkaline solutions of alkaline metal or alkaline-earth metal borohydrides wherein said reactor (10) is constituted by a hollow body, essentially cylindrical in shape, (1) sealed at an end while the opposite end is open and equipped with a cap (2) where said cylinder contains holes (5) for the discharge of the exhausted solution and contains one or more permanent magnets (4) coated by ferromagnetic catalysts directly anchored to said permanent magnets held by an extractable guide (8) which allows their easy extraction and insertion into the cylinder characterized in that it comprises a temperature sensor and in that said reactor (10), pump (11) and temperature sensor are inserted into the tank (13).