In an aspect of the present invention, a gasochromic dimming mechanism is provided which includes a gasochromic dimming component provided with a pair of transparent substrates, the transparent substrates being arranged to face each other, and a dimming part formed on one or both facing surfaces of the pair of the transparent substrates, wherein an optical property of the dimming part is reversibly changed by hydrogenation and dehydrogenation; and a hydrogen-air mixture gas supply unit that supplies a hydrogen-air mixture gas between the pair of the transparent substrates. The hydrogen-air mixture gas supply unit includes an electrolysis cell including a mixer for mixing hydrogen and air, a polymer electrolyte membrane, a porous electrode formed in the polymer electrolyte membrane as an anode, and an air supply unit that supplies the air to the mixer, the porous electrode being arranged on a flow channel of the air.

The invention relates to a method for electrochemical production of a product in an electrochemical cell comprising an extraction compartment. The extraction compartment comprises a liquid comprising a dissolved polyelectrolyte. The method comprises producing cations at an anode, producing anions at a cathode and transporting the ions through ion- selective membranes into the extraction compartment where the product is formed. The invention further relates to an electrochemical cell for use in the method.

The invention relates to a method for electrochemical production of a product in an electrochemical cell comprising an extraction compartment. The extraction compartment comprises a liquid comprising a dissolved polyelectrolyte. The method comprises producing cations at an anode, producing anions at a cathode and transporting the ions through ion- selective membranes into the extraction compartment where the product is formed. The invention further relates to an electrochemical cell for use in the method.

An ammonia production method is a method of producing ammonia from nitrogen molecule using electron supplied from a power supply in the presence of a complex and a proton source. The complex used is, for example, a molybdenum complex (1) that is carried on Merrifield resin. The proton source used is an electrolyte membrane, a solution used in a cathode tank, or both the electrolyte membrane and the solution used in the cathode tank:

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An ammonia production method is a method of producing ammonia from nitrogen molecule using electron supplied from a power supply in the presence of a complex and a proton source. The complex used is, for example, a molybdenum complex (1) that is carried on Merrifield resin. The proton source used is an electrolyte membrane, a solution used in a cathode tank, or both the electrolyte membrane and the solution used in the cathode tank:

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A carbon dioxide gas phase reduction device includes an oxidation tank including an oxidation electrode, a reduction tank to which carbon dioxide is supplied, an intermediate tank that is disposed between the oxidation tank and the reduction tank and capable of pouring and discharging an electrolytic solution, an ion exchange membrane disposed between the oxidation tank and the intermediate tank, a gas reduction sheet in which an ion exchange membrane and a reduction electrode are laminated and which is disposed between the reduction tank and the intermediate tank with the ion exchange membrane facing the intermediate tank and the reduction electrode facing the reduction tank, and a conducting wire connecting the oxidation electrode to the reduction electrode.

A carbon dioxide gas phase reduction device includes an oxidation tank including an oxidation electrode, a reduction tank to which carbon dioxide is supplied, an intermediate tank that is disposed between the oxidation tank and the reduction tank and capable of pouring and discharging an electrolytic solution, an ion exchange membrane disposed between the oxidation tank and the intermediate tank, a gas reduction sheet in which an ion exchange membrane and a reduction electrode are laminated and which is disposed between the reduction tank and the intermediate tank with the ion exchange membrane facing the intermediate tank and the reduction electrode facing the reduction tank, and a conducting wire connecting the oxidation electrode to the reduction electrode.

In a solid electrolyte integrated device including a substrate with electrically insulated surfaces, a first lower electrode layer and a second upper electrode layer are electrically connected to each other on a first main surface side, and a first upper electrode layer, the first lower electrode layer, the second upper electrode layer, and a second lower electrode layer transmit ions and/or have ion redox ability, contain a metal or a metal oxide or both of a metal and a metal oxide, and have a permeable portion.

In a solid electrolyte integrated device including a substrate with electrically insulated surfaces, a first lower electrode layer and a second upper electrode layer are electrically connected to each other on a first main surface side, and a first upper electrode layer, the first lower electrode layer, the second upper electrode layer, and a second lower electrode layer transmit ions and/or have ion redox ability, contain a metal or a metal oxide or both of a metal and a metal oxide, and have a permeable portion.

A method for generating hydrogen and oxygen using an electrolyzer, including at least one anode chamber having an anode and at least one cathode chamber having a cathode, wherein the at least one anode and the at least one cathode are energized by a modulated current and the generation of hydrogen and oxygen takes place within the electrolyzer using a defined pulse pattern sequence, which is formed from at least one pulse pattern.