Abstract: A method of producing hydrogen comprises electrolysing water to produce a mixture of hydrogen and oxygen gases. passing the mixture into a chamber containing a hydrogen storage medium to store the hydrogen by adsorption therein, venting the oxygen from the chamber, and subsequently treating the hydrogen storage medium to release the hydrogen stored therein. Apparatus for producing hydrogen from water comprises an electrolyser unit (1, 2) having mounted thereon a chamber (5) in communication with a gas outlet (3) from the electrolyser. the chamber containing a hydrogen storage medium (4) and being provided with means (8) for venting oxygen from the chamber.

Abstract: A hydrogen gas generator system comprises a reactor stack adapted to perform electrolysis on water in an electrolyte solution, the reactor stack comprising a plurality of spaced apart electrode plates and electrolyte solution disposed between the plates, each plate having an upper outlet aperture and a lower inlet aperture to allow movement of electrolyte solution across the plates. A separator is configured to receive a mixture of gas and electrolyte solution from a top of the reactor stack and separate the gas from the electrolyte solution. A gas outlet configured to remove gas from the separator, and an electrolyte solution inlet configured to return electrolyte solution from the separator to a bottom of the reactor stack.