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790
resultados
Última actualización
15/07/2025 [07:02:00]
Resultados 100 a 125 de 790
Resumen de: US2025205696A1
Described herein relates to a method that may be used for synthesizing a bifunctional electrocatalyst for electrochemical water splitting. The method may involve anodically converting an electrodeposited iron-nickel alloy film into an iron-nickel-oxygen nanofilm, followed by sequential phosphorization and/or selenylation treatments via chemical vapor deposition to form a quaternary iron-nickel phosphoselenide nanoporous film. This self-supported catalyst can facilitate both hydrogen evolution and oxygen evolution reactions, improving electrolysis efficiency. The inclusion of selenium may enhance electrical conductivity and stabilize catalytic performance, while the nanoporous structure can optimize mass transport. The film may be used as both anode and cathode in a two-electrode electrolyzer, enabling hydrogen production from pure water or seawater. Notably, the catalyst can demonstrate high turnover frequency and low overpotential, potentially surpassing conventional noble-metal-based catalysts. The system's stability under prolonged operation may underscore its potential for scalable hydrogen generation, reducing reliance on fossil fuels and advancing renewable energy applications.
Resumen de: US2025205656A1
An apparatus, includes: a first raw material supply unit 110 including a filter housing 111, a supply fan 112, a flow regulator 113, an electronic valve 114, and an air supply line 115, wherein the supply fan 112 is operated to suck in external air, in the process, the HEPA filter (not shown) mounted inside the filter housing 112 filters fine dust and adjusts the air supply flow rate from the flow regulator 113 to the appropriate flow rate and supplies through the supply line 115 to the ion generator 200; a second raw material supply unit 120 including a pressure regulator 122, a flow regulator 123, an electronic valve 124, and an air supply line 125.
Resumen de: US2025206621A1
A silica material has a substrate containing silicon dioxide, and has a sulfonate group on at least a surface of the substrate, or is obtained by bringing a sulfonating agent into contact with a substrate containing silicon oxide.
Resumen de: US2025207273A1
A water electrolysis electrode includes a conductive substrate and a layered double hydroxide layer. The conductive substrate has a surface including nickel having a plane orientation. The layered double hydroxide layer includes a layered double hydroxide including two or more transition metals. The layered double hydroxide layer is disposed on the surface.
Resumen de: US2025207278A1
An object of the present invention is to provide a water electrolysis method capable of maintaining a high electrolysis efficiency. The present invention proposes a water electrolysis method, including supplying water to an electrolysis cell whose interior is divided into an anode and a cathode by an electrolyte membrane, and electrolyzing the water, to generate oxygen at the anode and hydrogen at the cathode, wherein the electrolyte membrane includes: a first layer containing a polymer electrolyte; and a second layer containing carbon particles, and provided on the side of the cathode of the first layer.
Resumen de: US2025207279A1
A method for operating an electrolysis device, having a converter which is connected on an AC voltage side to an AC voltage grid via a decoupling inductance and draws an AC active power from the AC voltage grid, and an electrolyzer, which is connected to the converter on the DC voltage side, is provided. The method includes operating the electrolysis device, when a grid frequency corresponds to a nominal frequency of the ACT voltage grid and is substantially constant over a time period, with an electrical power which is between 50% and 100% of a nominal power of the electrolyzer, and operating the converter in a voltage-impressing manner, such that an AC active power drawn from the AC voltage grid is changed on the basis of a change and/or a rate of change of the grid frequency in the AC voltage grid.
Resumen de: US2025207277A1
A catalytic material comprising at least one group VIB metal at least partly in sulfide form, at least one group IVB metal at least partly in sulfide form, and an electrically conductive support wherein said group VIB metal is chosen from molybdenum and/or tungsten, said group IVB metal is chosen from titanium, zirconium and/or hafnium.
Resumen de: US2025207274A1
An electrode for water electrolysis cell includes a conductive base, a first layer, and a second layer. The conductive base includes a transition metal. The first layer is disposed on the conductive base, and includes two or more transition metals and oxygen. The second layer is disposed on the first layer and includes a layered double hydroxide (LDH) including two or more transition metals. The first layer is disposed between the conductive base and the second layer in a thickness direction of the first layer. The first layer includes a first transition metal that is the same as the transition metal included in the conductive base, and a second transition metal that is the same as the transition metal included in the second layer and different from the first transition metal. The first transition metal exists in the first layer at a concentration higher than a concentration of the first transition metal in the second layer.
Resumen de: US2025207266A1
A water electrolysis cell has: an oxygen generating electrode; a hydrogen generating electrode; and a membrane, and electrolyzes water to generate oxygen on the oxygen generating electrode and generate hydrogen on the hydrogen generating electrode. A control device includes: a potential-maintaining mode where the water electrolysis cell is supplied with electric current; and a complete stop mode where the water electrolysis cell is shut out from electric current supply, each of the modes is optionally implemented during an operation stop, wherein which of the modes is implemented is determined based on a duration time of the operation stop, a first deterioration rate of the water electrolysis cell when the complete stop mode is implemented, and a second deterioration rate of the water electrolysis cell when the potential-maintaining mode is implemented.
Resumen de: US2025210678A1
An electrochemical cell module includes a module housing and electrochemical cells located in the module housing and configured to generate power or hydrogen and to output an exhaust. The module also includes a vent housing attached to the module housing, an exhaust duct located in the vent housing, and a filter cartridge located in the exhaust duct. The exhaust duct contains an inlet that is configured to receive the exhaust from the module housing, and an outlet that is configured to direct the exhaust away from the module housing. The filter cartridge contains a particulate filter.
Resumen de: AU2023383044A1
An electrolysis system 1 is provided with an electrolysis cell 2 and a mediator reduction tank 4. The electrolysis cell 2 comprises: an anode electrode 10 which electrochemically oxidizes a mediator reduction body M
Resumen de: DE102023213301A1
Die Erfindung betrifft ein Verfahren zum Rückführen von Kathodenwasser (7) in einem Elektrolyseuraggregat (1), insbesondere einem PEM- oder AEM-Elektrolyseuraggregat (1), wobei zeitlich vor einem Wiedereinspeisen des einen Elektrolysezellenstapel (10) des Elektrolyseuraggregats (1) verlassenden Kathodenwassers (7) in eine Mediumversorgung (20) des Elektrolyseuraggregats (1), ein im Kathodenwasser (7) vorliegender Wasserstoff (8) abgetrennt wird, wobei in einer Wasserstoff-Abtrenneinrichtung (50) des Elektrolyseuraggregats (1), in einem ersten Abtrennschritt durch einen Überdruck in einem ersten Volumen (51) der Wasserstoff-Abtrenneinrichtung (50), Wasserstoff (8) aus dem wasserstoffreichen Kathodenwasser (7) abgetrennt wird, und in einem auf den ersten Abtrennschritt zeitlich folgenden zweiten Abtrennschritt durch eine Verweildauer des nun wasserstoffärmeren Kathodenwassers (7) in einem vom ersten Volumen (51) verschiedenen zweiten Volumen (52) der Wasserstoff-Abtrenneinrichtung (50), weiterer Wasserstoff (8) abgetrennt wird.
Resumen de: DE102023213299A1
Die Erfindung betrifft ein Verfahren zum Rückführen von Kathodenmedium (7) in einem Elektrolyseuraggregat (1), insbesondere einem PEM- oder AEM-Elektrolyseuraggregat (1), wobei zeitlich vor einem Wiedereinspeisen des einen Elektrolysezellenstapel (10) des Elektrolyseuraggregats (1) verlassenden Kathodenmediums (7) in ein Mediumreservoir (23) einer Mediumversorgung (20) des Elektrolyseuraggregats (1), ein im Kathodenmedium (7) vorliegender Wasserstoff (8) abgetrennt wird, und ferner zeitlich vor dem Wiedereinspeisen des Kathodenmediums (7) in das Mediumreservoir (23), in einem Verdünnschritt (V) des Rückführverfahrens dem Kathodenmedium (7) frisches Versorgungsmedium (3) zugeführt und derart eine Konzentration von Wasserstoff (8) im Kathodenmedium (7) verringert wird.
Resumen de: WO2025131661A1
The invention relates to an electrolysis assembly comprising at least one housing with an interior and at least one stack assembly in the interior of the housing. The stack assembly comprises a plurality of electrolysis cells stacked in a stacking direction, and at least some of the electrolysis cells comprise a respective membrane electrode assembly and a respective interconnector, wherein the membrane electrode assembly and the interconnector each have an oxygen side and a hydrogen side, and at least some of the electrolysis cells have contact elements between the membrane electrode assembly and the interconnector, said contact elements being designed to be viscous in an operating state of the electrolysis assembly and solid in a rest state of the electrolysis assembly.
Resumen de: EP4574749A1
Die Erfindung betrifft ein Verfahren sowie eine Anlage Verfahren zur Erzeugung eines Wasserstoffprodukts (12), bei dem ein erster Teil eines bereitgestellten Ammoniaks (F) überhitzt und in einem Spalteinsatz (1) einer brennerbefeuerten Spaltofenanordnung (S) zugeführt wird, um mit katalytischer Unterstützung zu einem Wasserstoff, Stickstoff und Ammoniak enthaltenden Spaltgas (3) umgesetzt zu werden, von dem zumindest ein Teil einer Trenneinrichtung (T) zugeführt wird, in der eine Wasserstofffraktion (6) sowie ein gegenüber dem Spaltgas (3) an Stickstoff angereichertes, Wasserstoff und Ammoniak enthaltendes Restgas (7) erhalten werden, von dem zumindest ein Teil zusammen mit einem zweiten Teil (14) des bereitgestellten Ammoniaks (F) zur Befeuerung der Spaltofenanordnung (S) eingesetzt wird. Kennzeichnend hierbei ist, dass der zweite Teil (14) des bereitgestellten Ammoniaks (F) vor seinem Einsatz zur Befeuerung der Spaltofeneinrichtung (S) überhitzt wird.
Resumen de: US2024133066A1
An electrolysis cell system includes a cathode portion configured to output a cathode exhaust stream, an anode portion configured to output an anode exhaust stream, a sensor configured to detect a concentration in an exhaust stream and to output sensor data, wherein the sensor is either a hydrogen concentration sensor configured to detect a hydrogen concentration in the cathode exhaust stream or a water concentration sensor configured to detect a water concentration of the anode exhaust stream, and a controller. The controller is configured to receive the sensor data from the sensor and, based on the sensor data, control at least one of (a) an air pressure adjustment device to adjust a pressure of air entering the anode portion or (b) a steam pressure adjustment device to adjust a pressure of steam entering the cathode portion.
Resumen de: EP4576285A1
An electrochemical cell module includes a module housing and electrochemical cells located in the module housing and configured to generate power or hydrogen and to output an exhaust. The module also includes a vent housing attached to the module housing, an exhaust duct located in the vent housing, and a filter cartridge located in the exhaust duct. The exhaust duct contains an inlet that is configured to receive the exhaust from the module housing, and an outlet that is configured to direct the exhaust away from the module housing. The filter cartridge contains a particulate filter.
Resumen de: CN119790190A
The invention relates to an electrolysis device (1) for producing hydrogen gas from an aqueous alkaline solution by electrochemical reaction, comprising an anode half-cell (2) and a cathode half-cell (3). The anode half-cell (2) and the cathode half-cell (3) are separated by a membrane (4), and the cathode half-cell (3) can be filled with the aqueous alkali. The anode half-cell (2) comprises an anode electrode (5) and the cathode half-cell (3) comprises a cathode electrode (6), the anode electrode (5), the cathode electrode (6) and the membrane (4) forming a membrane electrode unit (7). Furthermore, during normal operation of the electrolysis device (1), the initial filling amount of the alkaline solution in the cathode half-cell (3) can be varied exclusively by a diffusion process through the membrane electrode unit (7) and/or by an electrochemical reaction of the alkaline solution in the membrane electrode unit (7).
Resumen de: CN119678338A
The invention relates to a method for operating a renewable power plant (100) comprising at least one wind turbine (101) and an electrolyser system (110), the renewable power plant being connectable with an electrical grid (190) via a circuit breaker (123) located at a point of common coupling (PCC), wherein the renewable power plant comprises an internal grid (191) connecting the at least one wind turbine and the electrolyzer system with a point of common coupling, and wherein the method comprises detecting a low voltage at any one of the at least one wind turbine, and electrically disconnecting the electrolyzer system from the internal grid in response to detecting the low voltage.
Resumen de: WO2024178009A2
A hydrogen generating cell comprising an input electrode plate pair, an output electrode plate pair, an additional X plate electrode positioned adjacent the output electrode plate pair, and a plurality of intermediate electrode plates disposed between the input and output electrode plate pairs. A plasma torch is spaced apart from and inductively coupled to the input electrode plate pair. A pulsed DC voltage is applied to the plasma torch and X-plate, while a lower voltage pulsed DC voltage is applied to the input and output electrode plate pair to cause generation of hydrogen gas from an aqueous solution in which the cell is immersed.
Resumen de: EP4574255A1
In a method of preparing an ammonia decomposition catalyst according to embodiments of the present disclosure, a mixture of a metal oxide including lanthanum and a heterogeneous metal and aluminum oxide is prepared, the mixture was subj ected to steam treatment to form a carrier, and an active metal is supported on the carrier to prepare an ammonia decomposition catalyst. The ammonia decomposition catalyst according to embodiments of the present disclosure is prepared by the above-described preparation method.
Resumen de: EP4575040A1
A Ni-based porous electrode for water electrolysis comprising (a) a macroporous substrate having a specific thickness, porosity level, and a pore size; (b) a first layer of a metal or a metal alloy as defined herein covering the macroporous substrate; and (c) a second layer of Ni, a Ni-X alloy or a Ni-X-Y alloy as defined herein covering the first layer (b), wherein the Ni-based porous electrode is free from Pt-group metals and rare-earths; a process for the manufacturing of the Ni-based porous electrode; the use of the Ni-based porous electrode to catalyze the hydrogen evolution reaction (HER); and a water electrolyzer comprising the Ni-based porous electrode.
Resumen de: EP4575036A1
Die Erfindung betrifft eine Elektrolyseanordnung (10) mit einer Stackanordnung (16), wobei in der Stackanordnung (16) genau eine Eduktgas-Manifoldstruktur (66) zur Bereitstellung von Eduktgas an die Elektrolysezellen (18) und genau eine Produktgas-Manifoldstruktur (68) zum Abführen von Produktgas von den Elektrolysezellen (18) ausgebildet sind, wobei die Stackanordnung (16) eine Eduktgas-Öffnung zur Einleitung von Eduktgas in die Eduktgas-Manifoldstruktur (66) und eine Produktgas-Öffnung zur Ausleitung von Produktgas aus der Produktgas-Manifoldstruktur (68) aufweist, wobei die Eduktgas-Manifoldstruktur (66) und die Produktgas-Manifoldstruktur (68) innerhalb der Stackanordnung (16) jeweils mittels in den Interkonnektoren eingearbeiteten Manifoldöffnungen ausgebildet sind, wobei zwischen der Membran-Elektroden-Anordnung und dem Interkonnektor zumindest einiger Elektrolysezellen eine zur Leitung von Eduktgas aus der Eduktgas-Manifoldstruktur heraus entlang der Wasserstoffseite der Membran-ElektrodenAnordnungen und hin zur Produktgas-Manifoldstruktur ausgebildete Eduktgas-Leitungsstruktur angeordnet ist, und wobei zumindest einige Membran-ElektrodenAnordnungen auf ihrer Sauerstoffseite eine sauerstoffdurchlässige Struktur aufweisen, und wobei die sauerstoffdurchlässige Struktur derart angeordnet und ausgebildet ist, dass ein an der Sauerstoffseite der Membran-Elektroden-Anordnung freigesetzter Sauerstoff in den Innenraum des Gehäuses (12) ableitbar ist.
Resumen de: EP4575039A1
Die Erfindung betrifft ein Verfahren zur Herstellung einer Elektrolyseanordnung umfassend wenigstens ein Gehäuse mit einem Innenraum, und wenigstens einer im Innenraum des Gehäuses angeordneten Stackanordnung, wobei die Stackanordnung mehrere in eine Stapelrichtung gestapelte Elektrolysezellen umfasst, wobei zumindest einige der Elektrolysezellen jeweils eine Membran-Elektroden-Anordnung und einen Interkonnektor umfassen, und wobei die Membran-Elektroden-Anordnung und der Interkonnektor jeweils eine Sauerstoffseite und eine Wasserstoffseite aufweisen, wobei in einem Vorbereitungsschritt zur Herstellung einer Membran-Elektroden-Anordnungen auf den zwei Oberflächen einer Elektrolyt-Membran jeweils mindestens eine pastöse Schicht aufgebracht wird, wobei mindestens eine der Schichten auf jeweils einer Oberfläche zur Ausbildung einer auf der Wasserstoffseite der Membran-Elektroden-Anordnungen ausgebildeten ersten Elektrode und einer auf der Sauerstoffseite der Membran-Elektroden-Anordnungen ausgebildeten zweiten Elektrode dient, in einem Vorbereitungsschritt ein Dichtungsmaterial, umfassend Glas und/oder Glaskeramik auf die Interkonnektoren aufgebracht wird, in einem Montageschritt die vorbereiteten Interkonnektoren und Membran-Elektroden-Anordnungen abwechselnd zu einem Stapelverbund gestapelt werden, und in einem Montageschritt der Stapelverbund unter Einwirkung von thermischer Energie und einer auf den Stapelverbund in Stapelrichtung nach innen gerichteter mechanischer Spa
Nº publicación: KR20250094277A 25/06/2025
Solicitante:
포스코홀딩스주식회사
Resumen de: WO2025135743A1
The present invention provides a water electrolysis stack assembly and a hot box apparatus. In an embodiment, provided is a water electrolysis stack assembly including: a case including an upper surface part, a side surface part, and a gas outflow pipe formed in the side surface part; and a stack accommodated in an inner space of the case, wherein a surface pressure is applied to the stack by the upper surface part of the case.
BOPI
Sede Electrónica
