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881
resultados
Última actualización
10/11/2025 [06:59:00]
Resultados 125 a 150 de 881
Resumen de: US2025327198A1
The disclosure provides a water electrolysis catalyst and a water electrolysis device. The water electrolysis catalyst includes a catalyst support layer and a catalyst. The catalyst grows vertically and orderly on the catalyst support layer, and the catalyst has a nanowire or nanochain microstructure. The water electrolysis catalyst further includes nanoparticles stacked to form the nanowire or nanochain microstructures, and a diameter of the nanoparticles is from 5 nm to 500 nm.
Resumen de: US2025327192A1
A hydrogen generation system comprising a hydrogen electrolyser, a power converter connected to the electrolyser, and a control system configured to control the power converter to supply power to the electrolyser The system further includes a monitoring system configured to monitor the operation of the generation system, wherein the monitoring system is configured to: determine a plurality of operational parameters of the electrolyser, and, generate one or more performance metrics based on the determined operational parameters, the one or more performance parameters including: the electrical capacitance of the electrolyser, and/or the equivalent series resistance of the electrolyser. Also disclosed is a method for determining operational performance of a hydrogen generation system including an electrolyser.
Resumen de: US2025326652A1
Methods and systems for ammonia production are provided. An exemplary method includes electrolyzing water to form H2 and O2, contacting a reformer feed stream including hydrocarbons, O2 from electrolysis, and an oxidant stream including O2 and N2 to form a reformed stream including H2, CO, CO2, and N2; contacting the reformed stream with a water-gas shift catalyst to form a shifted stream including H2, CO2, and N2; separating the shifted stream to form a captured stream including CO2 and an ammonia production feed stream including H2 and N2; and reacting the ammonia production feed stream, and optionally H2 from electrolysis, to form ammonia.
Resumen de: AU2024263112A1
The present invention relates to an electrode and in particular to an electrode suitable for gas evolution comprising a metal substrate and a catalytic coating. Such electrode can be used as an anode for the development of oxygen in electrolytic processes such as, for example, in the alkaline electrolysis of water.
Resumen de: US2025320616A1
A differential pressure electrolysis device is equipped with a resin frame member bonded to a peripheral edge portion of an electrolyte membrane. A first member is interposed between a first separator and the resin frame member, and a second member is interposed between the resin frame member and a second separator. The differential pressure electrolysis device is equipped with a positioning member. The positioning member positions the resin frame member relative to the first member or the second member. However, the positioning member permits the resin frame member to move along a surface direction.
Resumen de: DE102024111159A1
Eine Zellenkomponentenanordnung (1) für ein elektrochemisches System umfasst ein dreidimensional strukturiertes Plattenelement (16), durch welches ein Prägefeld (12) gebildet ist, welches über einen eine Flussrichtung (FR) vorgebenden Durchleitungsbereich (7) mit einem Port (5) des elektrochemischen Systems verbunden ist, wobei durch eine Strukturierung (21) des Plattenelementes (16) insbesondere verschiedene 3er-Gruppen (22, 25) an länglichen, nebeneinander angeordneten, in Längsrichtung, das heißt Flussrichtung (FR), des Durchleitungsbereichs (7) ausgerichteten Prägeelementen (23, 24, 26, 27) gebildet sind. Hierbei handelt es sich um eine mittlere 3er-Gruppe (22) sowie zwei äußere 3er-Gruppen (25). In jeder 3er-Gruppe (22, 25) ist das mittlere Prägeelement (23, 26) geringer vom Rand (28) des Prägefeldes (12) beabstandet als die zwei seitlichen Prägeelemente (24, 27). Zugleich ist jede der beiden äußeren 3er-Gruppen (25) geringer vom Rand (28) des Prägefeldes (12) beabstandet als die mittlere 3er-Gruppe (22) an Prägeelementen (23, 24).
Resumen de: DE102024111239A1
Poröse Transportschicht 1 für den Einsatz in einem Elektrolyseur, wobei die Transportschicht 1 mehrere miteinander verbundene Lagen 2-4 aufweist, wobei mindestens eine der Lagen 2 eine Porosität unter 75 % aufweist und eine weitere Lage 3 eine Porosität von 75 % bis 90 % aufweist, wobei alle Lagen 2-4 aus Metall bestehen und stoffschlüssig miteinander verbunden sind, wobei wenigstens eine der Lagen 3 aus einem Flächengebilde aus Draht oder aus einem Streckmetallgitter besteht, das eine Hauptebene und eine 3D-Strukturierung senkrecht zu seiner Hauptebene aufweist, so dass in Verbindung mit einer benachbarten Lage 2, 4 Strömungskanäle ausgebildet werden.
Resumen de: DE102024203529A1
Die Erfindung betrifft eine elektrochemische Zelle (1) für die Elektrolyse, die elektrochemische Zelle (1) umfassend gegenüberliegende Hauptflächen (2) und zwischen den Hauptflächen (2) angeordnete Abfuhrkanäle (3) zum Abführen eines Elektrolyseproduktes, wobei die Abfuhrkanäle (3) in einen Sammelkanalabschnitt (4) münden, wobei sich der Sammelkanalabschnitt (4) von einer Hauptfläche (2) zur anderen Hauptfläche (2) der elektrochemischen Zelle (1) erstreckt und einen Durchbruch (5) in senkrechter Richtung zu den Hauptflächen (2) mit einer Umfangslinie (6) darstellt, wobei die Abfuhrkanäle (3) näherungsweise tangential zur Umfangslinie (6) in den Sammelkanalabschnitt (4) münden. Die Erfindung betrifft ferner einen Elektrolyseur (9) umfassend mehrere gestapelte elektrochemische Zellen (1) sowie ein Elektrolyseverfahren.
Resumen de: WO2025221298A1
Apparatuses, systems, and methods for leveraging subsurface geochemical reactions to provide optimal conditions for chemical extraction, hydrogen gas and/or ammonia formation and collection, carbon dioxide mineralization, and mining. In some embodiments, an integrated system can be used to simultaneously 1) produce hydrogen (H2) and ammonia (NH3) in-situ by injecting H2O and nitrogen (N)-sources onto ultramafic rocks; 2) mineralization of carbon dioxide (CO2) by injecting CO2 gas onto ultramafic rocks; and 3) collection and separation of percolated fluid form water- ultramafic rocks to extract valuable trace elements therefrom. The integrated system can deliver reactants through a subsurface for reaction with rocks disposed below ground, and outlets for collecting the products from the earth.
Resumen de: WO2025221010A1
The present invention relates to a porous support for water electrolysis, which has constant surface resistance and electrical conductivity due to coating layers uniformly formed inside and outside thereof, wherein the porous support comprises: a porous fabric support formed by intersecting a plurality of fibers with each other; a catalyst layer formed on the porous fabric support; a first coating layer formed on the catalyst layer; and a second coating layer formed on the first coating layer.
Resumen de: WO2025220974A1
The present invention relates to a molded catalyst for ammonia decomposition and a manufacturing method therefor and, more specifically, to an economical method for manufacturing a molded catalyst for ammonia decomposition and a molded catalyst manufactured thereby, wherein a catalyst carrier is prepared by coating various molded bodies such as beads, pellets, honeycombs, and the like with lanthanum and cerium and then ruthenium is supported on the catalyst carrier to produce an ammonia decomposition catalyst as a catalyst with superior activity in an ammonia decomposition reaction, whereby the strength of the coating can be sufficiently expressed, the catalytic activity can be improved or maintained even with a small amount of a catalytically active material (ruthenium), the loss of a coating solution can be reduced during a catalyst coating process, and the molded catalyst can be manufactured without a separate powder catalyst manufacturing process.
Resumen de: WO2025220485A1
The present disclosure provides an electrolytic cell stack capable of increasing the amount of product generated by electrolysis while suppressing a temperature rise of the cell stack. An electrolytic cell stack (101) according to the present disclosure comprises: a hydrogen generation unit (10) provided with an electrolytic cell (105) having a hydrogen electrode, an oxygen electrode, and a solid electrolyte membrane; a raw material gas supply port (11); a hydrogen gas discharge port (12); a raw material gas supply-side heat exchange unit (13); and a hydrogen gas discharge-side heat exchange unit (14). The raw material gas supply-side heat exchange unit and the hydrogen gas discharge-side heat exchange unit are each composed of a heat transfer unit and a header unit. The heat transfer unit area of the hydrogen gas discharge-side heat exchange unit is larger than the heat transfer unit area of the raw material gas supply-side heat exchange unit.
Resumen de: WO2025220363A1
This water electrolysis system uses an alkaline aqueous solution as an electrolytic solution, and is provided with: a cell stack to which the electrolytic solution is supplied; a storage unit in which the electrolytic solution is stored; an annular flow path that connects the storage unit and the cell stack; a pump unit that is provided on the annular flow path; a scale removal unit that is provided on the annular flow path and is capable of removing a scale contained in the electrolytic solution; and a scale component removal unit that is capable of removing scale components dissolved in the electrolytic solution at a saturation concentration or less.
Resumen de: WO2025218743A1
Provided in the present application are a new-energy hydrogen production power supply, and a new-energy hydrogen production system and a control method therefor. The new-energy hydrogen production power supply comprises: a rectification stage, which is used for connecting to a power bus to perform conversion between an alternating current and a direct current; an energy storage stage, which is connected to a direct-current side of the rectification stage in parallel and is used for absorbing, storing and/or releasing electric energy; and a chopping stage, which is separately connected to the rectification stage and an electrolyzer and is used for increasing or reducing a direct-current voltage and providing a direct current to the electrolyzer. The control method for a new-energy hydrogen production system comprises: on the basis of the power generation condition of a power bus, controlling a new-energy hydrogen production power supply to operate in the following operating modes: a new-energy low generation mode, a new-energy hydrogen production mode, a new-energy fluctuation mode and a new-energy power-deficient mode. The new-energy hydrogen production power supply has an energy storage link, can operate in modes where the new-energy output is low or fluctuates rapidly, can absorb or send active power to maintain the operation of an electrolyzer, and can use an energy storage stage to mitigate new-energy fluctuations, thus maximizing the utilization of new-energy power.
Resumen de: WO2025220974A1
The present invention relates to a molded catalyst for ammonia decomposition and a manufacturing method therefor and, more specifically, to an economical method for manufacturing a molded catalyst for ammonia decomposition and a molded catalyst manufactured thereby, wherein a catalyst carrier is prepared by coating various molded bodies such as beads, pellets, honeycombs, and the like with lanthanum and cerium and then ruthenium is supported on the catalyst carrier to produce an ammonia decomposition catalyst as a catalyst with superior activity in an ammonia decomposition reaction, whereby the strength of the coating can be sufficiently expressed, the catalytic activity can be improved or maintained even with a small amount of a catalytically active material (ruthenium), the loss of a coating solution can be reduced during a catalyst coating process, and the molded catalyst can be manufactured without a separate powder catalyst manufacturing process.
Resumen de: WO2025219328A1
A bipolar plate and electrodes assembly where the bipolar plate is connected to an electrode through a number of distance units is thus suggested whereby the distance units are singular, and that further, between each singular distance unit and at least one of the bipolar plate and the electrode a fusion zone is/are provided. The invention also comprises a method for generating a bipolar plate and electrodes assembly. Further an electrolyser adapted for electrolysing water into oxygen and hydrogen, is provided, whereby the electrolyser comprises a cell stack having alternatingly a diaphragm and a bipolar plate and electrode assembly and the assembly is comprised of a number of singular distance units interposed between and interconnecting bipolar plate and respective cathode and anode electrode, which distance units are adapted to be generated by way of one or more distance unit controlled generators during an assembly and fusion process.
Resumen de: EP4636058A2
A system (100) comprising a first chamber (108) configured to contain liquid water (115) and to receive a hydrocarbon combustion exhaust stream (104) comprising water and carbon dioxide; a heat exchanger (120) positioned in the first chamber and configured to convey methanation reaction products (144) through the first chamber to transfer heat from the methanation reaction products to the liquid water; and an electrolysis system (124) configured to subject the heated liquid water to electrolysis to generate hydrogen and oxygen, the electrolysis system comprising an anode (124) and a cathode (126) each received in the chamber.
Resumen de: WO2024126749A1
There is provided a multi-layered proton exchange membrane for water electrolysis, comprising: at least two recombination catalyst layers, each of the at least two recombination catalyst layers comprising a recombination catalyst and a first ion exchange material, wherein at least two recombination catalyst layers are separated by a region devoid of or substantially devoid of a recombination catalyst, and at least two reinforcing layers, each of the at least two reinforcing layers comprising a microporous polymer structure and a second ion exchange material which is at least partially imbibed within the microporous polymer structure.
Resumen de: EP4636131A2
An electrolysis device includes: an electrolysis cell; a cathode supply flow path; an anode supply flow path; a cathode discharge flow path; an anode discharge flow path; a cathode flow rate regulator to adjust a flow rate A of a cathode supply fluid; an anode flow rate regulator to adjust a flow rate B of a anode supply fluid; a first flowmeter to measure a flow rate C of a cathode discharge fluid; a second flowmeter to measure a flow rate D of a anode discharge fluid; and a control device to estimate a Faraday efficiency according to a relational expression for approximating the Faraday efficiency to a function including the C and D, and control the cathode flow rate regulator according to the estimated Faraday efficiency to control the A.
Resumen de: US2025320612A1
The present disclosure relates to a method of operating a water electrolysis cell that can improve long-term durability even under high current density operating conditions.
Resumen de: EP4635623A1
The present invention relates to an ammonia decomposition catalyst and a method for producing same and, more specifically, to an ammonia decomposition catalyst containing alumina (Al<sub>2</sub>O<sub>3</sub>), cerium (Ce), lanthanum (La), ruthenium (Ru), and potassium (K), and a method for producing the ammonia decomposition catalyst.
Resumen de: EP4635599A1
An method (100-600) for producing hydrogen is proposed, comprising providing a first gas (1) containing hydrogen, oxygen and water, said providing the first gas (1) comprising an electrolytic conversion of water; providing a second gas (5) containing hydrogen, oxygen and water, said providing the second gas (5) comprising a condensative removal of water from the first gas (1) or a part thereof; and providing a third gas (10) containing hydrogen, said providing the third gas (10) comprising an adsorptive removal of water and a catalytic removal of oxygen from the second gas (5) or a part thereof using a adsorptive and catalytic treatment arrangement (110) comprising treatment vessels (A, B), wherein each of the treatment vessels (A, B) comprises, in a first direction from a first opening to a second opening, a first adsorption layer (211), a catalytic layer (212) and a second adsorption layer (213), wherein each of the treatment vessels (A, B) is alternatingly operated in a treatment mode and a regeneration mode, wherein, in the treatment mode, the second gas (5) or a part thereof is passed in the first direction through the treatment vessels (A, B), wherein, in the treatment mode, the first adsorption layer (211) and the second adsorption layer (213) are used for said adsorptive removal of water and the catalytic layer (212) is used for said catalytic removal of oxygen, wherein, in the regeneration mode, the treatment vessels (A, B) are heated using a heating gas (5a, 10a) wh
Resumen de: JP2025160031A
【課題】 光触媒を用いた水素ガス製造装置に於いて、水素製造量を変化させるパラメータを調節して、水素製造量を制御できるようにする。【解決手段】 水素ガス製造装置１は、水３を貯留する水槽部２と、水槽部内の水中に分散又は配置された光触媒体３ａにして、光が照射されると、励起電子と正孔を発生し、水分子を水素と酸素とに分解する水の分解反応を起こし水素ガスを発生する光触媒物質を有する光触媒体と、光触媒体へ照射されて水の分解反応を惹起する光を発する光源装置４と、水素ガスの発生量を検知する水素発生量検知手段１６と、水素発生量検知手段にて検知された水素ガスの発生量に基づいて水素ガスの発生量を調節する水素発生量調節手段５０とを含む。【選択図】 図１
Resumen de: EP4635906A1
This ammonia decomposition apparatus is provided with: a reactor in which a catalyst for a decomposition reaction for decomposing ammonia that is a starting material into hydrogen and nitrogen is filled; a burner which is disposed in the reactor on the upstream side beyond the catalyst and is used for combusting hydrogen; and an ammonia supply line through which ammonia is supplied into the reactor on the upstream side beyond the catalyst.
Nº publicación: KR20250151314A 21/10/2025
Solicitante:
고려대학교세종산학협력단
Resumen de: KR20240099886A
Provided is the nano sheet for the hydrogen generation reaction catalyst. The nanosheet for a hydrogen generation reaction catalyst may be made of a transition metal dichalcogenide alloy, wherein the transition metal dichalcogenide alloy may include one transition metal selected from group 5 and one transition metal selected from group 6.
BOPI
Sede Electrónica
