Abstract: The invention relates to the energy industry, in particular to a device and a method for producing hydrogen, and can be used, for example, as a part of fuel systems of various vehicles in order to supply fuel to a hydrogen engine or hydrogen fuel cells. In the first aspect, the claimed invention is a device for producing hydrogen, comprising a housing and at least one rechargeable electrolytic cell with electrodes, which is mounted in the housing, the electrodes being an anode and a cathode, the cell being at least partially filled with a liquid water-based electrolyte, wherein the device comprises a sodium electrode isolated from the liquid electrolyte by a solid electrolyte configured to exchange positively charged sodium ions with the liquid electrolyte, and the cathode and the anode are separated by an ion-permeable partition. In the second aspect, the claimed invention is a method for producing hydrogen by alternating the discharging and charging processes of a rechargeable electrolytic cell.

Abstract: Disclosed herein is a method and device for production of a new long-term storage-stable allotropic modification of oxygen, tetraoxygen O4, using a combination of known chemical reactions into one technological sequence, including chemical interaction of negative and positive oxidation state oxygen compounds. The method involves production of dioxygen difluoride by oxidation of molecular oxygen with fluorine, followed by the reaction of dioxygen difluoride with alkali metal peroxide, forming tetraoxygen O4. Tetraoxygen is stable in its liquid state up to a temperature of +40° C. and can be used for the oxidation of rocket fuel, long-term compact storage of oxygen, and many other purposes.

Abstract: Disclosed herein is a method and device for production of a new long-term storage-stable allotropic modification of oxygen, tetraoxygen O4, using a combination of known chemical reactions into one technological sequence, including chemical interaction of negative and positive oxidation state oxygen compounds. The method involves production of dioxygen difluoride by oxidation of molecular oxygen with fluorine, followed by the reaction of dioxygen difluoride with alkali metal peroxide, forming tetraoxygen O4. Tetraoxygen is stable in its liquid state up to a temperature of +40° C. and can be used for the oxidation of rocket fuel, long-term compact storage of oxygen, and many other purposes.

Abstract: Apparatus for converting the energy of ocean waves into electricity, comprises a buoyant body that floats on the surface of water and a submerged body suspended from the buoyant body by flexible cables at a depth where water is still. The submerged body comprises electric generators and horizontally-aligned rotors with a plurality of variable geometry, preferably flexible, buckets attached to a lateral surface of each rotor. The buckets are so shaped to move through water with minimum resistance in one direction and with maximum resistance in the opposite direction. The buoyant body rises with each wave, dragging the submerged body upward through the region of still water until a wave reaches its crest. As a wave falls, the gravity drags the submerged body downward until a wave reaches its trough. This movement causes unidirectional rotation of rotors. This rotation is transmitted to electric generators.