An electrochemical hydrogen compressor comprises a unit cell that includes: an electrolyte membrane having hydrogen ion conductivity; an anode current collector stacked on one main surface side of the electrolyte membrane, a support member (for example, a flow field member or an anode separator) arranged so as to face the anode current collector; and a cathode current collector stacked on another main surface side of the electrolyte membrane, wherein the anode current collector is formed of a hydrophilic conductive material having a plurality of vent holes and has a surface facing the support member, the surface being subjected to a water-repellent treatment.

An electrolysis unit and to a method for electrochemically decomposing water into hydrogen and oxygen. The electrolysis unit has at least two electrolysis modules. The electrolysis unit also has exactly one first gas separation device for a first product gas including oxygen and exactly one second gas separation device for a second product gas including hydrogen. The first gas separation device is connected to the at least two electrolysis modules by respective first lines. The second gas separation device is connected to the at least two electrolysis modules by respective second lines. The at least two first lines have the same first length. The at least two second lines likewise have the same second length.

An electrolysis unit and to a method for electrochemically decomposing water into hydrogen and oxygen. The electrolysis unit has at least two electrolysis modules. The electrolysis unit also has exactly one first gas separation device for a first product gas including oxygen and exactly one second gas separation device for a second product gas including hydrogen. The first gas separation device is connected to the at least two electrolysis modules by respective first lines. The second gas separation device is connected to the at least two electrolysis modules by respective second lines. The at least two first lines have the same first length. The at least two second lines likewise have the same second length.

Provided is a catalytically active particle comprising an alloy, said alloy comprising: greater than or equal to 50 atomic % ruthenium (Ru); and 1 to 50 atomic % of one or more transition metals (M) selected from cobalt (Co), nickel (Ni), and iron (Fe), wherein the sum of the atomic percentages of Ru and M is greater than 65 atomic % of the alloy, and wherein, in the particle, the alloy is not fully or partially encapsulated by a layer of platinum atoms. Devices and processes employing the catalytically active particle are also provided.

Provided is a catalytically active particle comprising an alloy, said alloy comprising: greater than or equal to 50 atomic % ruthenium (Ru); and 1 to 50 atomic % of one or more transition metals (M) selected from cobalt (Co), nickel (Ni), and iron (Fe), wherein the sum of the atomic percentages of Ru and M is greater than 65 atomic % of the alloy, and wherein, in the particle, the alloy is not fully or partially encapsulated by a layer of platinum atoms. Devices and processes employing the catalytically active particle are also provided.

The present disclosure is related to electrochemical methods of forming monosaccharides, and systems for generating the same. A benefit of the methods and systems disclosed herein can include the sustainable production of monosaccharides in an automated process. A benefit of the methods and systems herein can be the generation of monosaccharides from renewable source materials. An additional benefit of the methods and systems herein can include the use of abundant feedstocks, such as carbon dioxide, for the efficient generation of select monosaccharides for use as nutrients and for other useful applications. Another benefit of the methods and systems disclosed herein can include reduction of excess carbon dioxide from the environment.

The chamber frame element of the present invention, which has a smaller amount of voltage drop, consumes less reactive power than the prior art, and exhibits no metal corrosion, is a chamber frame element (14) for an electrolyzer or an electrodialysis cell. The chamber frame element (14) includes: a bag body (141); a frame (142) housed in an interior space of the bag body (141); and an inlet (143) and an outlet (144) to which piping can be attached, which are formed on the outer side of a region where the frame is housed in the bag body (141).

The chamber frame element of the present invention, which has a smaller amount of voltage drop, consumes less reactive power than the prior art, and exhibits no metal corrosion, is a chamber frame element (14) for an electrolyzer or an electrodialysis cell. The chamber frame element (14) includes: a bag body (141); a frame (142) housed in an interior space of the bag body (141); and an inlet (143) and an outlet (144) to which piping can be attached, which are formed on the outer side of a region where the frame is housed in the bag body (141).

A water electrolysis device of a water electrolysis system includes an ion exchange membrane, an anode, and a cathode. A water supply unit supplies water to the water electrolysis device. A power supply applies a voltage to the anode and the cathode. A water removal unit separates water from the hydrogen gas discharged from the cathode. An electrochemical hydrogen compressor boosts the pressure of hydrogen gas. An oxygen gas discharge regulating unit makes the pressure of the oxygen gas generated in the anode higher than the pressure of the hydrogen gas generated in the cathode.

A water electrolysis device of a water electrolysis system includes an ion exchange membrane, an anode, and a cathode. A water supply unit supplies water to the water electrolysis device. A power supply applies a voltage to the anode and the cathode. A water removal unit separates water from the hydrogen gas discharged from the cathode. An electrochemical hydrogen compressor boosts the pressure of hydrogen gas. An oxygen gas discharge regulating unit makes the pressure of the oxygen gas generated in the anode higher than the pressure of the hydrogen gas generated in the cathode.