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977
resultados
Última actualización
06/07/2025 [07:03:00]
Resultados 725 a 750 de 977
Resumen de: US2025154670A1
An electrolysis cell comprises two elements, each comprising a central portion defining an anode chamber and a cathode chamber, respectively, and a circumferential flange portion, a sheet-like separator with a circumferential edge, the separator being disposed between the two elements and separating the anode and cathode chambers, and a sealing arrangement comprising at least a first and a second gasket, wherein the sealing arrangement is disposed in a gap between the flange portions, wherein the first gasket is an inner gasket positioned in a portion of the gap adjacent to the chambers and the second gasket is an outer gasket positioned in a portion of the gap distant to the chambers, wherein the gaskets are spaced apart from each other in the gap at an interval, and wherein the circumferential edge of the separator is located radially between a midpoint of the first gasket and a midpoint of the second gasket.
Resumen de: US2025154665A1
The present invention provides an oxyhydrogen preparation device capable of adjusting hydrogen content and a using method thereof. The device comprises a housing for accommodating an oxygen production device, a hydrogen production device, a control module (14), and a power supply module (19), wherein the power supply module (19) is configured to supply power to each said device; the oxygen production device is configured to separate oxygen from air and store the oxygen for backup supply; the hydrogen production device is configured to produce hydrogen or oxyhydrogen for backup supply based on the principle of water electrolysis; the control module (14) is configured to control and adjust the oxygen flow, detect the oxygen concentration, and adjust the flow of the oxyhydrogen and the hydrogen content to a preset range; and the oxygen produced by the oxygen production device converges with the hydrogen or the oxyhydrogen produced by the hydrogen production to a gas outlet (17) of the oxyhydrogen gas preparation device through a pipeline, and then discharged after humidification or discharged directly. Further disclosed is a using method of the device. The advantages such as long service life, adjustable hydrogen content, adjustable oxyhydrogen flow are achieved.
Resumen de: US2025154674A1
A membrane-electrode assembly includes a first catalyst electrode, a polymer electrolyte membrane covering a side surface and an upper surface of the first catalyst electrode, and a second catalyst electrode disposed on the polymer electrolyte membrane, in which at least a portion of a corner area in which the side surface and the upper surface of the first catalyst electrode are connected has a curved shape.
Resumen de: US2025154882A1
An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.
Resumen de: US2025154002A1
A method for producing hydrogen, includes the steps of: providing a base material including magnesium; providing a carrier fluid, in particular water; providing a pH-lowering liquid; bringing together the base material and the carrier fluid in a suspension container to form a suspension; supplying the pH-lowering liquid to a reactor; continuously supplying the suspension to the reactor; discharging the hydrogen produced in the reactor in a reaction of the base material and the pH-lowering liquid from the reactor. Further, a corresponding device produces hydrogen.
Resumen de: US2025158099A1
Method of manufacturing of a membrane with surface fiber structure, in particular for use in an electrolyzer or fuel cell, by inserting the polymer membrane into the vacuum chamber equipped with a magnetron sputtering system with a cerium oxide target in which an atmosphere of O2 and inert gas is formed and igniting the plasma which leads to simultaneous plasma etching of the membrane surface and deposition of cerium oxide onto the surface of etched membrane resulting in formation of fibers. The membrane is made of polymer and on at least one of its sides features porous surface made of fibers, the cross-sectional dimensions of which are lower than their length and which are integral and inseparable part of membrane body.
Resumen de: KR20250067422A
본 발명의 내구성이 우수한 복합재료 촉매 및 이의 제조방법은 카본블랙(C) 지지체; 및 상기 카본블랙(C) 지지체에 담지되고 표면에 백금쉘(Pt-shell)이 형성된 구리 나노와이어(Cu NW)를 포함하여, 수소 발생 반응의 촉매 활성 및 전기화학적 내구성이 우수한 복합재료 촉매 및 이의 제조방법에 관한 것이다.
Resumen de: JP2025075699A
【課題】優れた電極性能を発揮できる水電解装置用の電極を提供する。【解決手段】ここに開示される電極１は、導電性基材１０と、少なくともＮｉ－Ｆｅ酸化物と金属Ｎｉとを含む触媒層２０とを備えている。この触媒層２０は、導電性基材１０の上に形成された第１層２１と、第１層２１の上に形成され、Ｆｅ元素の含有量が第１層よりも多い第２層２２とを備えている。そして、導電性基材１０から触媒層２０の表面２０ａに向かう元素分析において、第１層２１におけるＦｅ率の増加割合が０．１７％／ｎｍ以上であり、第２層２２におけるＦｅ率の増加割合が０．１７％／ｎｍ未満である。そして、第１層２１の厚みＴ１に対する第２層２２の厚みＴ２の割合が０．９以下である。かかる構成の電極１は、水電解装置用の電極として優れた性能を発揮できる。【選択図】図２
Resumen de: JP2025076322A
【課題】親水性が高くイオン透過性が良好で、気泡の付着によりイオン透過性が阻害されることがなく、ガス遮断性が良好であり、長期の電解においてもその性能が維持でき、更に、取り扱い性に優れ、生産性にも優れたアルカリ水電解用隔膜を提供すること。【解決手段】多孔性支持体と多孔質層とを有するアルカリ水電解用隔膜であり、前記多孔質層は、前記アルカリ水電解用隔膜の少なくとも一方の表面を構成する層であり、前記多孔質層は有機ポリマーおよび親水性無機粒子を含み、前記有機ポリマーの量が、前記親水性無機粒子の総量に対して８質量％以下であることを特徴とする、アルカリ水電解用隔膜とする。【選択図】なし
Resumen de: AU2023374771A1
Cell for forming an electrolyser comprising at least one diaphragm or membrane having a first side and a second side opposite the first side, a first cell plate, arranged on the first side of the diaphragm, provided with a first electrode, provided with an inlet channel for supplying or draining electrolyte to or from the electrode, provided with a first discharge channel for discharging oxygen from the electrode, at least one second cell plate, arranged on the second side of the diaphragm, provided with a second electrode and provided with a second discharge channel for discharging hydrogen from the electrode wherein the at least one first and second cell plate are made of a polymer material.
Resumen de: WO2025101135A1
The invention relates to a pure hydrogen gas production system (A) for use in the field of hydrogen production technologies for various applications such as energy storage, fuel cells and industrial chemistry processes, characterized in that; at least a water inlet nozzle (30) for the introduction into the system (A) of water to which potassium hydroxide has been added, at least one anode acting as the positive pole (60) and at least one cathode (70) acting as the negative pole during the electrolysis process, conductive plates (100) that ensure efficient delivery of electric current to the electrolysis cell, at least one palladium alloy membrane (90) with high selectivity and permeability, which is positioned in the space (102) formed in the body of said conductive plates (100), and which enables the separation of pure hydrogen gas by purifying the HHO gas produced as a result of the separation of water molecules by the electric current passing between said anode (60) and cathode (70) during the electrolysis process.
Resumen de: WO2025099872A1
An electrolytic cell (3) comprises: a hydrogen electrode chamber (12); an oxygen electrode chamber (13); a metal support body (6) having a plurality of communication holes (6a) formed in a first main surface (6b); and a cell body section (7) disposed on the first main surface (6b). The cell body section (7) comprises: a hydrogen electrode (14) formed on the first main surface (6b) and disposed in the hydrogen electrode chamber (12); an oxygen electrode (15) disposed in the oxygen electrode chamber (13); an electrolyte (16) disposed between the hydrogen electrode (14) and the oxygen electrode (15); and a current collection member (18) disposed on the oxygen electrode (15) and inside the oxygen electrode chamber (13). The pressure in the oxygen electrode chamber (13) is higher than the pressure in the hydrogen electrode chamber (12).
Resumen de: WO2025099844A1
An electrolytic cell system (1) comprises: a plurality of cell stacks (11); a control device (40, 40a); and a power source (30). The plurality of cell stacks (11) generate a generated gas containing hydrogen by electrolyzing a raw material gas containing water. The plurality of cell stacks (11) are electrically connected in parallel. The control device (40, 40a) controls the operation of the plurality of cell stacks (11). The plurality of cell stacks (11) include two or more cell stacks (11) in which the steady power required for steady operation near thermal neutral voltage is mutually different. The control device (40, 40a) suspends the operation of at least one cell stack (11), of the two or more cell stacks (11), in a manner approximate to the amount of decrease in the power supplied from the power source (30).
Resumen de: WO2025100112A1
A production method for hydrogen according to the present invention includes a step for electrolyzing an electrolytic solution that has been heated to a temperature between a lower limit temperature that is at least 100°C and at least the melting point and an upper limit temperature that is less than the boiling point, the electrolytic solution being composed of sodium hydroxide, potassium hydroxide, and water and satisfying expressions (1)-(3). (1) 4≤x≤14. (2) 51≤y≤71. (3) 15≤z≤45.
Resumen de: WO2025099868A1
An electrolysis cell system (1) comprises an electrolysis cell (10), a first supply path (L1), a second supply path (L2), a first pressure adjustment unit (60), a second pressure adjustment unit (80), and a controller (130). The electrolysis cell (10) has a hydrogen electrode chamber (12) and an oxygen electrode chamber (13). The first supply path (L1) supplies a raw material gas containing water vapor to the hydrogen electrode chamber (12). The second supply path (L2) supplies compressed air to the oxygen electrode chamber (13). The first pressure adjustment unit (60) is provided in the first supply path (L1). The second pressure adjustment unit (80) is provided in the second supply path (L2). The controller (130) controls the first pressure adjustment unit (60) and the second pressure adjustment unit (80) to adjust a first pressure in the hydrogen electrode chamber (12) and a second pressure in the oxygen electrode chamber (13).
Resumen de: WO2025098180A1
A preparation method for a cobalt-iridium nanocrystal comprises: mixing an iridium salt, an organic ligand, a reducing solvent and a centrifugal liquid to form a first precursor, and maintaining the temperature of the first precursor; and mixing the first precursor with a cobalt salt in a protective atmosphere to form a second precursor, and maintaining the temperature to carry out a reaction to obtain the cobalt-iridium nanocrystal. According to the preparation method, a centrifugal liquid is used as a raw material, improving the yield, crystallinity and electrocatalytic activity of the cobalt-iridium nanocrystal, and reducing the synthesis cost. The present invention also relates to a cobalt-iridium nanocrystal and a water electrolysis catalyst.
Resumen de: WO2025098254A1
Provided in the present invention are an anode for a PEM water electrolytic cell and a preparation method for the anode. The anode comprises a stainless steel base body and a layered oxide structure generated on the surface of the stainless steel base body in situ, wherein the layered oxide structure comprises a manganese-deficient inner layer and a manganese-rich outer layer, the manganese-rich outer layer comprising a crystal manganese oxide secondary outer layer and an amorphous iron-containing manganese oxide outermost layer. The layered oxide structure of the surface of the anode of the present invention can maintain long-time catalytic activity for electrolysis of water and stability under acidic conditions, and an appropriate surface structural component selection solves the problems of corrosion and stability of self-catalysis and non-noble metal electrodes in an acidic environment. The anode provided in the present invention significantly reduces the present cost of hydrogen production based on a noble metal catalyst, and is expected to solve high-cost problem of PEM large-scale electrolysis hydrogen production.
Resumen de: WO2025097621A1
A hydrogen refueling station, a hydrogen energy automobile, and a hydrogen refueling system. The hydrogen refueling system comprises a decomposition device (10), a transfer device (20), a storage device (30) and a recombination device (40); the decomposition device is configured to decompose water into hydrogen and oxygen; the transfer device is configured to transport hydrogen into the storage device and discharge oxygen into the environment; the storage device is configured to store the hydrogen transported by the transfer device; the recombination device is configured to receive the hydrogen provided by the storage device and the oxygen in the environment, and the hydrogen and the oxygen react in the recombination device to generate a current. When the hydrogen refueling system of the present invention is used for hydrogen refueling of the automobile, a way to perform real-time hydrogen production and hydrogen refueling is used, such that it is not necessary to build a large hydrogen storage tank, which saves the long-distance transportation of hydrogen and reduces the construction cost and operation cost of a hydrogenation system.
Resumen de: AT527689A1
Kühlsystem für eine Elektrolysevorrichtung zur Erzeugung von Wasserstoff, wobei die Elektrolysevorrichtung zumindest einen Elektrolysestack (1) und zumindest eine Anlagekomponente aufweist, wobei das Kühlsystem zumindest zwei voneinander getrennte Kühlmittelkreisläufe (2, 2‘) aufweist, wobei ein erster Kühlmittelkreislauf (2) nur für die Kühlung des Elektrolysestacks (1) der Elektrolysevorrichtung ausgebildet ist, und ein zweiter Kühlmittelkreislauf (2‘) nur für die Kühlung der Anlagekomponente der Elektrolysevorrichtung vorgesehen ist, und wobei sich die Temperatur des Kühlmittels im ersten Kühlmittelkreislauf (2) von der Temperatur des Kühlmittels im zweiten Kühlmittelkreislauf (2‘) unterscheidet.
Resumen de: WO2025098664A1
The present invention relates to a powdered catalyst material which is particularly suitable for the oxygen generation reaction in the electrolysis of water. The catalyst material comprises an unsupported ruthenium-iridium oxide, wherein the ratio of the proportions by weight of iridium (Ir) to ruthenium (Ru), in relation to the total weight of the unsupported ruthenium-iridium oxide, is not greater than 4.5. The non-supported ruthenium-iridium oxide exhibits a powder conductivity of at least 30 S/cm. The invention also relates to a method for producing such a powdered catalyst material, a composition, a catalyst layer, an electrode and an electrochemical device containing the powdered catalyst material, as well as a method for producing hydrogen using the powdered catalyst material.
Resumen de: WO2025101433A1
A syngas generation system includes a molten carbonate fuel cell (MCFC) including a MCFC cathode configured to receive a MCFC cathode input stream including a flue gas stream and a MCFC anode configured to output a MCFC anode exhaust stream including carbon dioxide and steam. The syngas generation system further includes a solid oxide electrolysis cell (SOEC) including an SOEC cathode and an SOEC anode. The SOEC is configured to receive, at the SOEC cathode, an SOEC cathode input stream, the SOEC cathode input stream including at least a portion of the MCFC anode exhaust stream, co-electrolyze carbon dioxide and steam in the SOEC cathode input stream, and output, from the SOEC cathode, an SOEC cathode exhaust stream including carbon monoxide and hydrogen gas.
Resumen de: WO2025099113A1
The invention relates to an electrolysis system comprising an electrolyzer (1) that has an inlet (2) through which a liquid can be introduced and an outlet (3) through which the liquid or gas can be discharged. The outlet (3) is connected, via an outlet line (4), to a gas-liquid separator (5) in which the gas exiting the electrolyzer (1) is separated from the exiting liquid. The inlet (2) can be connected to a pressure tank (10) in which liquid is kept available under a flushing pressure.
Resumen de: WO2025099110A1
The invention relates to an electrolysis system comprising an electrochemical stack (1) that has an inlet (8) through which water can be introduced and comprising an outlet (9) through which water or gas can be discharged out of the stack (1). The outlet (9) is connected, via a line (10), to a gas-water separator (11) in which the gas exiting the stack (1) is separated from the exiting water. The gas-water separator (11) is connected to a water tank (20) via a discharge line (13) in order to store the separated water, wherein the water tank (20) is connected to the inlet (8) of the stack (1) via a flushing line (22).
Resumen de: WO2025097201A1
The present invention relates to a method of producing an electrocatalyst, an electrocatalyst obtained by the method, an electrode coated with the electrocatalyst, an electrolyser comprising the electrode and a method of producing hydrogen using the electrolyser In particular, the present invention relates to a bimetallic electrocatalyst for use in hydrogen evolution reaction (HER).
Nº publicación: KR20250066990A 14/05/2025
Solicitante:
글로벌어드밴스드메탈스유에스에이아이엔씨고쿠리츠다이가쿠호우징신슈다이가쿠
Resumen de: MX2023013142A
Single crystalline nanoparticles that are tantalum nitride doped with at least one metal are described. The single crystalline nanoparticles can be doped with two metals such as Zr and Mg. The single crystalline nanoparticles can be TasNsMg+Zr, or TasNsMg, or TasNs:Zr or any combination thereof. Catalyst containing the single crystalline nanoparticles alone or with one or more co-catalyst are further described along with methods of making the nanoparticles and catalyst. Methods to split water utilizing the catalyst are further described.
BOPI
Sede Electrónica
