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977
resultados
Última actualización
06/07/2025 [07:03:00]
Resultados 225 a 250 de 977
Resumen de: DK202330343A1
Water electrolyser stack having a range of half-cell frames which each circumscribes one of an anolytic or a catholytic process chamber and which half-cell frames are arranged and aligned in an array between a proximal electric current injector/collector plate and a distal electric current injector/collector plate, and where each half-cell frame comprises an embedded furrow flow channel adapted to serve an electrolyte flow from a stack internal inflow manifold channel to a corresponding anolytic or catholytic reaction chamber and an embedded furrow flow channel adapted to serve an electrolyte and gas outflow from a corresponding anolytic or catholytic reaction chamber to a corresponding stack internal manifold channel wherein each of the embedded furrow flow channels comprise at least one fluid and/or gas trap section.
Resumen de: TW202409348A
An alkaline electrolyzer system comprising an electrochemical cell in proximity to a spacer frame is provided. The spacer frame contains a polymer composition that includes a polymer matrix that contains at least one polyarylene sulfide.
Resumen de: US2025188629A1
A power control device for a hydrogen production system according to one aspect includes: a power generation device that generates electric power by using renewable energy; a hydrogen production device that produces hydrogen by using electric power generated by the power generation device; and a connector that connects the power generation device and the hydrogen production device to an electric power system. The power control device determines a power command value to be supplied to the hydrogen production device based on electric power generated by the power generation device and electric power that reversely flows to the electric power system so that hydrogen is produced in a state where a reverse power flow to the electric power system continuously occurs.
Resumen de: WO2025119989A1
The invention concerns a method of electrolysing water using an electrolyser comprising an anode; a cathode and optionally a separator; wherein at least one of the cathode and the separator comprises a substrate and a coating, and the coating comprises 9.5 to 35 wt% chromium; 10 to 75 wt% cobalt; and 10 to 60 wt% of one or more further transition metals and/or one or more non-metallic elements selected from C, P, N and B.
Resumen de: AU2023338223A1
00049 An iridium-based catalyst and method of making the catalyst are described. The catalyst comprises a catalytic material comprising iridium oxide or a mixture of iridium and iridium oxide nanoplates. It may have a BET surface area of at least 50 m
Resumen de: EP4567158A1
Provided is a hydrogen production system (100) including: an electrolysis module (19) that supplies steam to a hydrogen electrode (11) including a metal component and produces hydrogen through steam electrolysis; a hydrogen storage facility (40) that stores the generated hydrogen; a steam supply unit (20) that supplies steam to the hydrogen electrode (11); a regulation unit (50) that regulates a supply amount of the hydrogen supplied from the hydrogen storage facility (40) to the hydrogen electrode (11) and a supply amount of the steam supplied from the steam supply unit (20) to the hydrogen electrode (11); and a control device (80) for controlling the regulation unit (50) to switch a heating medium supply state in which a heating medium is supplied from a heating medium supply unit (70) to the hydrogen electrode (11) to a steam supply state in which steam is supplied from the steam supply unit (20) to the hydrogen electrode (11), in response to the electrolysis module (19) exceeding a first switching temperature when activating the electrolysis module (19).
Resumen de: EP4567079A1
Molybdenum carbide includes a Mo<sub>2</sub>C crystal structure, in which a content of carbon with respect to a total mass (100 mass%) of the molybdenum carbide is 6% or more.
Resumen de: CN119604469A
The present invention relates to a method for manufacturing an electrocatalyst for alkaline water electrolysis, said method comprising the steps of: (i) generating an aqueous electrolyte comprising suspended graphene and graphite nanoplatelets having lt in an electrochemical cell; the present invention relates to an electrolytic cell having a thickness of 100 nm, where the electrolytic cell comprises: a graphite negative electrode, (b) a graphite positive electrode, (c) an aqueous electrolyte comprising ions in a solvent, the ions comprising cations and anions, where the anions comprise sulfate anions; and wherein the method comprises the step of passing an electric current through the electrolysis cell to obtain exfoliated graphene and graphite nanosheet structures in the aqueous electrolyte in an amount greater than 5 g/l; (ii) forming an electroplating bath (2) comprising suspended graphene and graphite nanoplatelets in an amount greater than 2 g/l, said acidic electroplating bath comprising an aqueous solution of nickel sulfate and an electroplating solution comprising suspended graphene and graphite nanoplatelets in an amount greater than 5 g/l (thickness lt; 100 nm) of an aqueous electrolyte of step (i); and (iii) electrodepositing a combined layer of Ni or Ni alloy with graphene and graphite particles from the electroplating bath on a support to form an electrocatalyst.
Resumen de: AU2022322636A1
A highly crystalline mesoporous sulphur functionalized carbon nitride and a process for producing the same. The process including the steps of: providing a carbon nitride precursor material; mixing the carbon nitride precursor material with a metal salt to form a first mixture; and, thermally treating the first mixture to produce the crystalline carbon nitride.
Resumen de: US2025149602A1
A SOC stack system comprises one or more solid oxide cell stacks and multi-stream solid oxide cell stack heat exchanger(s).
Resumen de: KR20250084643A
본 발명은 수전해용 촉매 제조방법 및 수전해용 촉매에 관한 것으로서, 본 발명에 따른 수전해용 촉매 제조방법은, 탄소 소재를 준비하는 단계; 상기 탄소 소재 상에 니켈을 도금하는 단계; 상기 니켈에 금을 코팅하는 단계; 이리듐을 드롭캐스팅하는 단계; 및 열처리하는 단계;를 포함하고, 상기 니켈, 상기 금 및 상기 이리듐의 중량비는 1 : 12~16 : 2~4인 것을 포함한다.
Resumen de: EP4568049A1
Provided is an electrolyzer power control system that includes a reactive harmonic current reference generation stage. The reactive harmonic current reference generation stage selects a reactive power set point for reactive power drawn by a rectifier from a grid, determines a reactive power current reference based on the reactive power set point, aggregates the reactive power current reference with a reference current of harmonic currents that the rectifier injects in or draws from the grid, determines a reactive harmonic current reference that compensates for both the reactive power and the harmonic currents and outputs the reactive harmonic current reference. Switching signals that operate the rectifier are generated based on the reactive harmonic current reference.
Resumen de: EP4567157A2
An electrolyzer system includes stacks of electrolyzer cells configured receive steam and air, and output a hydrogen product stream and an oxygen exhaust stream, and a first heat pump configured to extract heat from the oxygen exhaust stream to generate a first portion of the steam provided to the stacks.
Resumen de: CN119630834A
The invention relates to a method for heating a furnace comprising radiant tubes and capable of heat-treating a running steel product, comprising the following steps: i. Supplying H2 and O2 to at least one of said radiant tubes such that said H2 and said O2 combine into heat and steam; ii. Recovering said steam from said at least one of said radiant tubes; iii. Electrolyzing the steam to produce H2 and O2; iv. Supplying said H2 and O2 produced in step iii to at least one of said radiant tubes such that said H2 and O2 combine into heat and steam.
Resumen de: EP4567159A2
There is disclosed an electrolyser (10, 20, 50) for operation at supercritical conditions, in which chambers (200, 210, 520) for retaining respective fluid reaction products are separated by a porous wall which permits a flow of electrolyte fluid therethrough and which inhibits a reverse flow of the respective reaction product. There is also disclosed a method of operating an electrolyser.
Resumen de: CN117926298A
A system preferably includes a carbon dioxide reactor. A method for carbon dioxide reactor control preferably includes selecting a carbon dioxide reactor aspect based on a desired output composition, operating the carbon dioxide reactor under controlled process conditions to produce the desired output composition, and/or changing the process conditions to change the output composition.
Resumen de: KR20250084527A
본 발명의 일 실시예는, 암모니아 공급부와, 제1 연결라인을 통해 상기 암모니아 공급부와 연결되고, 암모니아 분해반응을 통해 암모니아를 분해하고, 상기 암모니아 분해반응으로부터 생성된 수소, 질소 및 미반응 암모니아를 포함하는 반응생성물을 배출하는 분해반응부와, 상기 암모니아 공급부와 상기 분해반응부 사이에 배치되고, 상기 제1 연결라인을 통과하는 상기 암모니아를 승압하는 승압부와, 상기 암모니아 공급부와 상기 분해반응부 사이에 배치되며, 상기 제1 연결라인을 통과하는 상기 암모니아를 가열하는 가열부를 포함하는, 암모니아를 이용한 수소 제조 및 공급 장치를 제공한다.
Resumen de: EP4567153A1
A method of electrolysing water, the method comprising:- providing an electrolyser comprising an anode; a cathode and optionally a separator;- contacting the cathode and/or the anode with an aqueous alkaline solution comprising water; and- electrolysing the water using a potential difference from the anode to the cathode,wherein at least one of the cathode and the separator comprises a substrate and a coating, wherein the coating comprises 9.5 to 35 wt% chromium; 10 to 75 wt% cobalt; and 10 to 60 wt% one or more further transition metals and/or one or more non-metallic elements selected from C, P, N and B, and wherein the coating catalyses hydrogen evolution at the cathode.
Resumen de: CN119013421A
The hydrocarbon feed stream is exposed to heat in the absence of oxygen to convert the hydrocarbon feed stream into a solid stream and a gas stream. The gas stream is separated into an off-gas stream and a first hydrogen stream. The carbon is separated from the solids stream to produce a carbon stream. The water stream is electrolyzed to produce an oxygen stream and a second hydrogen stream. Iron ore is reduced to produce iron by flowing hydrogen through the iron ore. The iron and a first portion of the carbon in the carbon stream are combined to produce steel. At least a portion of the oxygen in the oxygen stream and a second portion of the carbon in the carbon stream are combined to produce electrical energy and a carbon dioxide stream.
Resumen de: CN120119280A
本发明公开了一种介孔氧化铱催化剂及其制备方法和应用，包括，含铱化合物、硝酸盐和尿素加水溶解，搅拌混合均匀得到混合液；混合液旋蒸干燥获得均匀的催化剂前驱体；前驱体在空气气氛下煅烧，得到氧化铱催化剂；所述含铱化合物包括但不限于氯铱酸、氯铱酸钾、三氯化铱中的一种或多种，所述硝酸盐包括但不限于硝酸钠、硝酸铵、硝酸钾中的一种或多种，所述混合液中尿素与含铱化合物的摩尔比为1～100:1、硝酸盐与含铱化合物的摩尔比为1～100:1；本发明制备的介孔氧化铱具有超高比表面积，有利于活性位点的暴露和优化了反应过程中的传质，有效降低质子交换膜电解水阳极催化剂的贵金属载量。
Resumen de: KR20250084095A
신재생에너지 기반의 그린수소 생산 시스템 및 방법을 제공한다. 신재생에너지 기반의 그린수소 생산 시스템으로서, 전력계통; 재생에너지 기반의 전력을 생성하는 재생에너지 제공파츠; 및 상기 전력계통, 상기 재생에너지 제공파츠 중 적어도 어느 한 곳으로부터 전력을 공급받고, 기 설정된 고순도의 수소생산을 수행하는 수소 생산파츠를 포함한다.
Resumen de: CN120115163A
一种三功能非晶态/晶态Rh(OH)3/NiMoO4异质结电解水催化剂的制备方法及其应用，其具体步骤包括：以泡沫镍作为基底，硝酸镍作为镍源、钼酸钠作为钼源、尿素作为络合剂，加入水中形成混合溶液，通过水热法制备NiMoO4纳米花；再将三氯化作为铑源，使其溶解在水中形成溶液，并将NiMoO4浸入其中，在黑暗条件下静置12小时后干燥，即得催化剂。Rh(OH)3/NiMoO4在泡沫镍基底上生长均匀，材料的活性位点暴露较多，导电性能增强，三维纳米花结构使其与碱性电解液充分接触，在电解水过程中不易被腐蚀且更加稳定，并且铑和镍钼合金的协同效应改善了电解水反应动力学，对提高电解水性能具有重要作用。
Resumen de: CN120117655A
本发明提供了一种硫化铋/钨酸铋/三氧化钨光阳极及其制备方法和光电催化析氢的应用，首先通过化学浴沉积法在FTO基底上生长WO3纳米片，然后将Bi2WO6利用溶剂热法负载在WO3的表面制得Bi2WO6/WO3，之后通过阴离子交换法制得Bi2S3/Bi2WO6/WO3复合薄膜。该光阳极在碱性电解液中表现出高效的光电催化水解产氢性能，偏压辅助模拟太阳光照射下的光电催化水解产氢量达到330μmol/h以上，太阳能电池辅助户外太阳光照射下的光电催化水解产氢量达到260μmol/h以上。本发明通过原位生长形成Bi2WO6/WO3异质结构，并通过简单的阴离子交换法将Bi2WO6/WO3硫化，硫化铋/钨酸铋/三氧化钨三元异质结的协同作用发挥出优异的光电催化产氢性能，且在24h光电流响应测试中保持良好的稳定性。
Resumen de: WO2024058606A1
The present invention relates to a method for preparing a NiMo-MoO3-x porous nanorod catalyst on the basis of a metal-organic framework and a non-precious alloy catalyst prepared thereby. The method for preparing a non-precious alloy catalyst according to the present invention can produce an alloy catalyst retaining excellent HER performance close to that of a commercial platinum catalyst by forming porous nanorods with a wide surface area having a combination of an alloy and an oxide.
Nº publicación: CN120119292A 10/06/2025
Solicitante:
浙江大学国网吉林省电力有限公司
Resumen de: CN120119292A
本发明公开了一种基于滑模控制的碱液电解槽脉冲电流制氢电路及控制方法，该电路通过设计滑模控制器实现滑模控制方法，以为碱液电解槽提供脉冲电流进行电解制氢；该电路中，电压源的正极与开关管的集电极相连，电压源的负极与快恢复型二极管的正极、碱液电解槽的负极相连，开关管的发射极与电感的第一端、快恢复型二极管的负极相连，电感的第二端与碱液电解槽的正极相连；通过滑模控制器得到占空比，利用占空比和三角载波调制得到开关管基极上的控制信号，经过电感输出脉冲电流，并将其提供给碱液电解槽进行电解制氢。本发明能够显著降低输出电流纹波，提高电能质量，进而提升电解效率。
BOPI
Sede Electrónica
