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resultados
Última actualización
19/03/2026 [07:03:00]
Resumen de: CN121443774A
The present invention relates to a method of synthesizing a transition metal catalyst consisting of electrodeposition on a substrate electrode from an electrolyte solution comprising at least one transition metal precursor wherein the electrodeposition is carried out at a deposition current density of 500 to 2000 mA/cm2. The invention also relates to a transition metal catalyst characterized in that it is stable on a base electrode at a current density of at least 400 A/cm2 for at least 30 minutes.
Resumen de: EP4711495A1
The present invention relates to an electrolyser cell stack (100) for producing a hydrogen-based e-fuel, including an electrochemical system (10) with a plurality of electrolyser cells for an electrochemical reaction of water with electric power, an electrical system (20) for supplying electric power to the stacked electrolyser cells, and a compression system (30) with compression plates (33) for compressing at least the electrochemical system (10) in a stacking direction (D). According to the invention, the electrochemical system (10) is divided into at least two parallel stacked sub-stacks (11) of the electrolyser cells arranged within an area (A) of the compression plates (33), for a common compression of all sub-stacks (11) by the same compression system (30).
Resumen de: EP4711506A1
Provided are an electrochemical cell and an electrochemical device that are easily manufactured and capable of retrofitting. The electrochemical cell includes: a first plate and a second plate between which an anode chamber and a cathode chamber are respectively formed on respective opposing inner surface sides thereof; and a sealing portion provided between the first plate and the second plate, in which the sealing portion includes plural frame bodies disposed at intervals from an inner side to an outer side, and plural sealing members disposed between the plural frame bodies and disposed in a compressed state between the first plate and the second plate. The electrochemical device includes the electrochemical cell.
Resumen de: US20260055522A1
Provided herein is a hydrogen gas production assembly includes a hydrogen gas production device, a container including an aqueous electrolyte solution, a storage container for storing produced hydrogen gas an input providing the aqueous electrolyte solution from the container to the hydrogen gas production device and an output for transferring produced hydrogen gas from the hydrogen gas production device to the storage container.
Resumen de: CN121311631A
Composite proton exchange membranes are described. The composite proton exchange membrane comprises three layers, wherein the three layers comprise a proton exchange membrane layer, a continuous nonporous organic-inorganic composite coating layer and a continuous nonporous cross-linked polyelectrolyte multilayer coating. Catalyst coated membranes incorporating the composite proton exchange membranes and methods of making the composite proton exchange membranes are also described.
Resumen de: CN121368648A
The present invention relates to an electrolysis system comprising: a tank adapted to contain water or an aqueous solution; the electrolysis array comprises a conductive plate; the temperature-resistant cathode is close to but separated from the cathode end of the electrolysis array; a cell anode proximate but spaced apart from opposing anode ends of the electrolysis array; wherein a cathode terminal and an anode terminal of the electrolysis array are electrically connected to a cathode terminal and an anode terminal of a first power source adapted to provide direct current (DC) power thereto, respectively; the temperature-resistant cathode and the tank anode are electrically connected to a negative terminal and a positive terminal of a second power source adapted to provide DC power thereto, respectively; and at least the temperature resistant cathode is adapted to generate a plasma arc in the water or aqueous solution between the end of the temperature resistant cathode and the closest plate in the electrolysis array.
Resumen de: EP4711504A1
An ink 1a for water electrolysis electrode catalyst includes a catalyst 11, a support 15, an organic polymer 12, and a solvent 13 including water. The catalyst 11 includes at least one transition metal. The support 15 supports the catalyst 11 and includes a transition metal. The organic polymer 12 includes a water-insoluble polymer 12b and a nonionic water-soluble polymer 12a.
Resumen de: EP4711483A1
The present invention provides a heat-resistant alloy that is excellent in nitriding resistance and high-temperature creep rupture strength. The heat-resistant alloy of the present invention comprises, in mass %, C: 0.2% to 0.6%, Si: greater than 0% to 2.5% or less, Mn: greater than 0% to 2.0% or less, P: 0.03% or less, S: 0.03% or less, Ni: 33.0% to 50.0%, Cr: 24.0% to 50.0%, with the remainder being Fe and impurities, and optionally including: Nb: greater than 0% to 1.8% or less, Rare Earth Elements: greater than 0% to 0.5% or less, Ti: greater than 0% to 0.5% or less and/or Zr: greater than 0% to 0.5% or less, W: greater than 0% to 2.0% or less and/or Mo: greater than 0% to 0.5% or less.
Resumen de: GB2644070A
A system comprising an electrochemical half cell which operates to form a gas at a solid surface, which may be an electrode 54,55. The electrolyte liquid contains an additive which is a high molecular weight flexible linear polymer or viscoelastic linear surfactant. A flow path through the half cell 51L, 51R is configured to compel flow of liquid through the half cell 51L, 51R to make a succession of changes of direction. The electrolyte liquid is pumped through the half cell 51L, 51R at a rate which is sufficient that the additive and flow path configuration put the flowing electrolyte in a state of elastic turbulence which causes bubbles of gas to detach from the surface on which they are formed while they are still small freeing the surface for further reaction. The half cell 51L, 51R may be part of an electrolyser making hydrogen and oxygen from water.
Resumen de: EP4711036A1
A system can include a catalytic reactor heated using magnetic induction to perform a magnetically induced decomposition reaction. The catalytic reactor can include a housing coupled with a feedstock source to receive a flow of an inorganic compound in gaseous form that can flow through the catalytic reactor. The housing can include a metal-based catalyst selected to decompose the inorganic compound into one or more reaction products within a predefined temperature range. The metal-based catalyst can include a heating agent that can increase in temperature when exposed to a magnetic field. A coil can be positioned around the housing to provide the magnetic field to heat the metal-based catalyst using magnetic induction to be within the predefined temperature range.
Resumen de: EP4711499A1
An electrochemical half-cell operates to form a gas at a solid surface which may be an electrode. The electrolyte liquid contains an additive, which is a high molecular weight flexible linear polymer or a viscoelastic linear surfactant. A flow path through the half-cell is configured to compel flow of liquid through the half-cell to make a succession of changes of direction. The electrolyte liquid is pumped through the half-cell at rate which is sufficient that the additive and flow path configuration put the flowing electrolyte in a state of elastic turbulence which causes bubbles of gas to detach from the surface on which they are formed while they are still small, freeing the surface area for further reaction. The half-cell may be part of an electrolyser making hydrogen and oxygen from water.
Resumen de: WO2024230958A1
An electrochemical device (10'), with a cell stack consisting of a plurality of cell stack elements, with a force application unit (13) which exerts a force on the cell stack in order to press the cell stack elements of the cell stack fluid-tightly in sealing regions (17) of the cell stack, wherein the force application unit (13) is designed in such a manner that the force for pressing the cell stack acts on the cell stack and therefore on the sealing regions (17) of the cell stack depending on the operating state of the electrochemical device (10').
Resumen de: EP4711327A1
A corrosion-resistant system, a carbon-free power generation and fuel cell system comprising the corrosion-resistant system, and a method for ammonia decomposition utilizing said corrosion-resistant system are provided. The corrosion-resistant system includes: an ammonia supply unit; a first pipe connected to the ammonia supply unit; an ammonia decomposition unit comprising a chamber connected to the first pipe; and a second pipe connected to the chamber, wherein the chamber is configured to operate at an operating temperature of 410°C or lower, the first pipe and the chamber comprise at least one selected from the group consisting of carbon steel, low alloy steel, stainless steel and a nickel-based alloy, and the second pipe comprises a nickel-based alloy (NT) satisfying Equation 1 below. T≤15μm
Resumen de: EP4711328A1
Disclosed are an ammonia supply system, a hydrogen production system, a carbon-free power generation system and a fuel cell system. The ammonia supply system includes: an ammonia supply unit; an ammonia demand unit; a connection line that is arranged to connect the ammonia supply unit and the ammonia demand unit; a hydrogen supply unit; and one or more first hydrogen supply lines that are arranged to connect the hydrogen supply unit and the connection line, and are configured to supply a hydrogen gas stream, wherein the connection line includes a first pipe configured to be controlled to an average temperature of 410°C or lower and a second pipe configured to be controlled to an average temperature of greater than 410°C, and the second pipe includes a nickel-based alloy (NT) satisfying Equation 1 below. T≤15μm,
Resumen de: EP4711497A1
A method is described for detecting the presence of hydrogen in the oxygen stream generated by a PEM cell, wherein the PEM cell comprises a membrane permeable to H<sup>+</sup> ions , a first inlet conduit for water, a second outlet conduit for hydrogen, and a third outlet conduit for the generated oxygen. The hydrogen and the oxygen being produced by the molecular dissociation of water inside the PEM cell.In the method the temperature of a catalyst placed in contact with said oxygen stream, is detected.
Resumen de: EP4711496A1
The electrochemical reaction device includes: an electrochemical reaction structure including a cathode, an anode, a diaphragm having a first surface on the cathode and a second surface on the anode, a cathode flow path, and an anode flow path; a first flow path through which a first fluid containing a reducible material to the cathode flow path flows; a second flow path through which a second fluid containing water to the anode flow path flows; a third flow path through which a third fluid containing the reduction product from the cathode flow path flows; and a fourth flow path through which a fourth fluid containing water and oxygen from the anode flow path flows. The diaphragm has concentration gradient in which a concentration of a chemical species decreases from the second surface to the first surface, the chemical species being configured to decompose, capture, or inactivate an active oxygen specie.
Resumen de: WO2024231175A1
The present invention concerns composite casing structures for electrolytic cells wherein each casing structure is made of a plurality of casing components, optionally made of at least two different materials, which are subsequently joined together to form a structure suitable to house one or more of the following elements: electrodes, separators, bipolar elements, elastic elements and/or current collectors. The casing structure may be advantageously employed in electrolysers for high pressure alkaline water electrolysis.
Resumen de: TW202513891A
The present disclosure relates to an electrode and a method for preparing the same. According to the present disclosure, an electrode for anion exchange membrane water electrolysis that can achieve improved electrochemical performance and also has excellent durability can be provided.
Resumen de: TW202508703A
The present disclosure relates to a method for preparing a nickel-based phosphide catalyst for oxygen evolution reaction in alkaline water electrolysis anode using sodium hypophosphite(NaH2PO2) substitution and pyrolysis.
Resumen de: WO2025078381A1
The various embodiments of the present invention disclose a water electrolyser using alkaline medium, comprising: a first end plate and a second end plate and a plurality of cells stacked in-between the first and the second end plate. Each cell comprises an anode cell frame and a cathode cell frame, each cell frame further comprises a central opening, at least one inlet channel transversing through the cell frame, and at least one inlet pathway grooved in the cell frame for connecting the inlet channel to the central opening. The inlet pathway comprises an inlet orifice <b>characterized by</b> a minimum cross-sectional area in the inlet pathway. The cross-sectional area of the inlet channel in the stack is greater than the sum of the cross-sectional area of the plurality of inlet orifices in the stack by at least a predetermined factor, the predetermined factor being larger than 1 and smaller than or equal to 4.
Resumen de: EP4711496A1
The electrochemical reaction device includes: an electrochemical reaction structure including a cathode, an anode, a diaphragm having a first surface on the cathode and a second surface on the anode, a cathode flow path, and an anode flow path; a first flow path through which a first fluid containing a reducible material to the cathode flow path flows; a second flow path through which a second fluid containing water to the anode flow path flows; a third flow path through which a third fluid containing the reduction product from the cathode flow path flows; and a fourth flow path through which a fourth fluid containing water and oxygen from the anode flow path flows. The diaphragm has concentration gradient in which a concentration of a chemical species decreases from the second surface to the first surface, the chemical species being configured to decompose, capture, or inactivate an active oxygen specie.
Resumen de: CN119024088A
The invention provides a test system and method for evaluating an electrode for a hydrogen production electrolytic bath in a laboratory, and the test system at least comprises an electrode clamp which is used for clamping an electrode to be evaluated; the heat exchanger is connected to the electrode clamp, and electrolyte is preheated through the heat exchanger and then input into the electrode clamp; and a heating unit connected to the electrode holder to heat the electrode holder. According to the test system and method for the electrode for the hydrogen production electrolytic cell in the laboratory, the temperature of the electrode clamp and the electrolyte in the electrode clamp can be accurately controlled, the accuracy of the test result is improved, the energy consumption of the test system can be reduced, and the test efficiency is improved.
Resumen de: WO2025053532A1
The present invention relates to a membrane electrode assembly manufacturing method comprising the steps of: (S1) forming a first catalyst layer on the other surface of a separation membrane having a first carrier film attached to one surface thereof; (S2) attaching a second carrier film to the other surface of the separation membrane on which the first catalyst layer is formed; (S3) removing the first carrier film attached to one surface of the separation membrane; and (S4) forming a second catalyst layer on one surface of the separation membrane from which the first carrier film is removed, wherein the second carrier film includes a first area corresponding to the first catalyst layer on the other surface of the separation membrane, and a second area, which is the remaining area that excludes the first area, and the second area of the second carrier film is coated with an adhesive on a surface facing the other surface of the separation membrane on which the first catalyst layer is formed.
Resumen de: EP4711499A1
An electrochemical half-cell operates to form a gas at a solid surface which may be an electrode. The electrolyte liquid contains an additive, which is a high molecular weight flexible linear polymer or a viscoelastic linear surfactant. A flow path through the half-cell is configured to compel flow of liquid through the half-cell to make a succession of changes of direction. The electrolyte liquid is pumped through the half-cell at rate which is sufficient that the additive and flow path configuration put the flowing electrolyte in a state of elastic turbulence which causes bubbles of gas to detach from the surface on which they are formed while they are still small, freeing the surface area for further reaction. The half-cell may be part of an electrolyser making hydrogen and oxygen from water.
Nº publicación: JP2026045990A 13/03/2026
Solicitante:
広東匯江▲ケイ▼能産業工程技術研究有限公司
Resumen de: CN120004436A
The invention relates to the technical field of industrial solid waste comprehensive treatment, and discloses a water treatment method and system after secondary aluminum ash hydrogen production, and the method comprises the following steps: collecting hydrolysate after secondary aluminum ash hydrogen production to obtain high saline-alkaline ammonia nitrogen hydrolysate; carrying out ammonia-nitrogen separation on the high-salt-alkali ammonia-nitrogen hydrolysate to obtain a gas phase and a first-stage liquid phase; dissolving carbon dioxide in the first-stage liquid phase until a specified pH value is reached to obtain a second-stage liquid phase; dissolving carbon dioxide in the second-stage liquid phase until the specified pH value is reached to obtain a third-stage liquid phase; adding an extracting solvent into the third-stage liquid phase, dissolving carbon dioxide until the specified pH value is reached, and extracting and separating to obtain a fourth-stage liquid phase of an organic phase and a fourth-stage liquid phase of an inorganic phase; evaporating moisture of a fourth-stage liquid phase of the inorganic phase; and carrying out back extraction separation on the fourth-stage liquid phase of the organic phase to obtain an inorganic liquid phase and an organic liquid phase. By adopting the method, aluminum hydroxide and various valuable salts can be efficiently recovered, and the obtained product is rich and high in value.
BOPI
Sede Electrónica
