▎ 摘　　要

NOVELTY - A method for producing hydrogen in a liquid comprises providing a suspension of graphene particles in the liquid to a reaction tank made of transparent material partially or completely transmittable for UV-visible-far infrared radiation (UV-VIS-FIR) light wave range and exposing the contents of the reaction tank to an electromagnetic radiation beam with a wavelength in the UV-VIS-FIR light wave range, where the radiation is generated by an emitter, and the hydrogen liberated from the liquid is transferred through the vent outside the reaction tank. USE - The method is used for producing hydrogen in a liquid for supplying hydrogen cells, filling hydrogen tanks with hydrogen, saturating fuel liquids with hydrogen, in chemical synthesis reactors, in hydrogen fuel-based electromobility, in medicine and agriculture. ADVANTAGE - The method avoids the hydrolysis step, and produces hydrogen in devices that could be used in fuel cells. The method provides a contactless and electrodeless production of hydrogen in a hermetic container with the possibility to recover it by transferring it to a separate container, to a fuel cell, or being integrated with another device that uses hydrogen. The method adopts ultrasounds in the phase of producing the graphene and liquid suspension to obtain high homogenization of the suspension, to accelerate the process of hydrogen emission from the liquid. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a device for implementing the method comprising a tank equipped with a vent constituting a hydrogen collection system and an electromagnetic radiation generation system consisting of an optical system and an emitter focusing an electromagnetic radiation beam, where the emitter is optionally equipped with a power supply system and a control system.