There is provided a water solar power generation system including: a solar cell plate; a frame supporting the solar cell frame; and a float installed in the frame and positioning the solar cell plate on the surface of the water while floating on the surface of the water. The frame becomes a negative electrode and an optical electrode which becomes a positive electrode, and is electrically connected to the frame, and causes water decomposition while contacting water in the water to generate oxygen in the water.

There is provided a water solar power generation system including: a solar cell plate; a frame supporting the solar cell frame; and a float installed in the frame and positioning the solar cell plate on the surface of the water while floating on the surface of the water. The frame becomes a negative electrode and an optical electrode which becomes a positive electrode, and is electrically connected to the frame, and causes water decomposition while contacting water in the water to generate oxygen in the water.

A method can include incorporating graphene oxide (GO) in a solution, reducing the graphene oxide (GO) by refluxing carbon nitride (C.sub.3N.sub.4) in the solution to form carbon-nitride refluxed-graphene-oxide (C.sub.3N.sub.4-rGO) composites, and incorporating ruthenium ions into the C.sub.3N.sub.4-rGO composites to form C.sub.3N.sub.4-rGO-Ru complexes.

A method can include incorporating graphene oxide (GO) in a solution, reducing the graphene oxide (GO) by refluxing carbon nitride (C.sub.3N.sub.4) in the solution to form carbon-nitride refluxed-graphene-oxide (C.sub.3N.sub.4-rGO) composites, and incorporating ruthenium ions into the C.sub.3N.sub.4-rGO composites to form C.sub.3N.sub.4-rGO-Ru complexes.

To provide an electrolysis cell for producing an organic chemical hydride capable of advancing a reduction reaction in a cathode of an organic compound having an unsaturated bond with high current efficiency and a small electric power consumption unit.

An electrolysis cell 10 for producing an organic chemical hydride includes a solid polymer electrolyte film 11 which has proton conductivity; a cathode 12 which is provided on one surface of the solid polymer electrolyte film 11 and generates a hydride by reducing a substance to be hydrogenated; a cathode chamber 13 which accommodates the cathode 12 and to which the substance to be hydrogenated is supplied; an electrode catalyst-containing anode 14 which is provided on another surface of the solid polymer electrolyte film 11 and generates a proton by oxidizing water; and an anode chamber 15 which accommodates the anode 14 and to which an electrolytic solution is supplied, in which at least one of a surface of the cathode 12 side and a surface of the anode 14 side of the solid polymer electrolyte film 11 is hydrophilized.

The invention relates to a method for preparing a hydrocarbon by reducing CO.sub.2, wherein CO.sub.2 is reduced to a hydrocarbon with the aid of a directly heated electrode. A device for carrying out a corresponding method, a corresponding power plant and a system comprising said power plant and a vehicle with a combustion engine are also objects of the invention. The method and device may, e.g., be used as a micro-energy system for decentralized energy supply.

To provide an electrolysis cell for producing an organic chemical hydride capable of advancing a reduction reaction in a cathode of an organic compound having an unsaturated bond with high current efficiency and a small electric power consumption unit. An electrolysis cell 10 for producing an organic chemical hydride includes a solid polymer electrolyte film 11 which has proton conductivity; a cathode 12 which is provided on one surface of the solid polymer electrolyte film 11 and generates a hydride by reducing a substance to be hydrogenated; a cathode chamber 13 which accommodates the cathode 12 and to which the substance to be hydrogenated is supplied; an electrode catalyst-containing anode 14 which is provided on another surface of the solid polymer electrolyte film 11 and generates a proton by oxidizing water; and an anode chamber 15 which accommodates the anode 14 and to which an electrolytic solution is supplied, in which at least one of a surface of the cathode 12 side and a surface of the anode 14 side of the solid polymer electrolyte film 11 is hydrophilized.

To provide an electrolysis cell for producing an organic chemical hydride capable of advancing a reduction reaction in a cathode of an organic compound having an unsaturated bond with high current efficiency and a small electric power consumption unit. An electrolysis cell 10 for producing an organic chemical hydride includes a solid polymer electrolyte film 11 which has proton conductivity; a cathode 12 which is provided on one surface of the solid polymer electrolyte film 11 and generates a hydride by reducing a substance to be hydrogenated; a cathode chamber 13 which accommodates the cathode 12 and to which the substance to be hydrogenated is supplied; an electrode catalyst-containing anode 14 which is provided on another surface of the solid polymer electrolyte film 11 and generates a proton by oxidizing water; and an anode chamber 15 which accommodates the anode 14 and to which an electrolytic solution is supplied, in which at least one of a surface of the cathode 12 side and a surface of the anode 14 side of the solid polymer electrolyte film 11 is hydrophilized.

The present disclosure relates to a water splitting catalyst including a porous carbon layer, a bimetallic metal alloy core dispersed on the porous carbon layer, and a single-atom precious metal dispersed on the bimetallic metal alloy core, in which oxygen is adsorbed on the surface of the bimetallic metal alloy core.

The present disclosure relates to a water splitting catalyst including a porous carbon layer, a bimetallic metal alloy core dispersed on the porous carbon layer, and a single-atom precious metal dispersed on the bimetallic metal alloy core, in which oxygen is adsorbed on the surface of the bimetallic metal alloy core.