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Resultados 450 a 475 de 785
Resumen de: CN120519887A
本发明涉及一种析氧电催化材料及其制备方法与应用，属于电解水制氢技术领域。针对现有贵金属基OER催化剂成本高昂、性能差及稳定性不足的技术难题，本发明提出一种负载在导电沸石分子筛骨架上的二氧化铱颗粒的新型OER电催化剂，通过将导电金属离子植入沸石分子筛骨架，并结合金属‑载体协同效应，实现了高活性、高稳定性的OER性能。
Resumen de: CN120518864A
本发明提供一种聚合物及其制备方法和应用，所述制备方法包括以下步骤：步骤一、将多巴和/或多巴胺与有机溶剂混合，加入有机碱、硅烷化合物，得到第一中间产物；步骤二、将第一中间产物与有机溶剂混合，加入pH调节剂，搅拌反应，得到第二中间产物；步骤三、将二苯砜类化合物与有机溶剂混合，加入第二中间产物，搅拌反应，得到第三中间产物；步骤四、将第三中间产物与有机溶剂混合，加入铵盐，得到第四中间产物；步骤五、将第四中间产物、双酚A与有机溶剂混合，加入无机碱，搅拌反应，得到所述聚合物。将所述聚合物用于制备碱性水电解复合膜，能够改善复合膜与电解液的浸润性，减少隔膜的表面电阻，提高隔膜的电解效率和机械稳定性。
Resumen de: CN120519914A
双极膜强化电解水制氢电解槽，涉及电解水制氢技术领域，包括集成底座，集成底座上设有双极膜电解模块、水路循环模块、散热模块、纯化干燥模块；双极膜电解模块包括电解箱，电解箱焊接在集成底座上；电解箱内焊接有分隔竖板，分隔竖板上固定有电场发生器；分隔竖板上开设有连通口，连通口的两侧固定设有前段电解管和后段电解管；前段电解管上开设有阳离子排出口，阳离子排出口内固定有阳离子交换膜；前段电解管内还固定设有水平界面膜；后段电解管上开设阴离子排出口，阴离子排出口内固定有阴离子交换膜；后段电解管内还固定设有竖直界面膜。本发明解决了电解水制氢中存在的高能耗、低纯度、散热难、耗水多、系统庞杂、控制僵化及安全风险等问题。
Resumen de: DE102024201557A1
Die Erfindung betrifft ein Verfahren zum Betrieb einer Elektrolyseanlage (1, 20) umfassend einen Elektrolyseur (11) zur Erzeugung von Wasserstoff (H2) und Sauerstoff (O2) als Produktgase, wobei Wasser als Edukt zugeführt wird und an einer protonenleitenden Membran (21) aus einem fluorfreien Polymer (24) zu Wasserstoff (H2) und Sauerstoff (O2) gespalten wird, wobei das Polymer (24) ein nicht-funktionelles Polymermaterial mit einer funktionellen hydrophilen Gruppe aufweist, wobei ein Produktgasstrom (5) in einem Phasengemisch umfassend Wasser (H2O) sowie ein jeweiliges Produktgas gebildet wird, und wobei ein Produktgasstrom einem dem Elektrolyseur (11) nachgeschalteten Gas-Separator (3, 13) zugeführt wird, und bei dem die Freisetzung eines ionischen Abbauproduktes der funktionellen hydrophilen Gruppe der Membran (21) über die Betriebszeit bestimmt wird, wobei dessen zeitlicher Verlauf der Konzentration ermittelt wird, wobei ein Maß für die betriebsbedingte Degradation der protonenleitenden Membran (21) infolge einer Freisetzung des ionischen Abbauprodukts der hydrophilen Gruppe ermittelt wird.Die Erfindung betrifft weiterhin eine entsprechende Elektrolyseanlage (1, 20) sowie eine Messsystem zur Durchführung des Verfahrens.
Resumen de: US2025262610A1
According to the embodiments of the present disclosure, an ammonia decomposition catalyst may be prepared by performing heat treatment on alumina, a lanthanum compound and a cerium compound in a reducing gas atmosphere to form a composite oxide on an alumina support, and supporting an active metal including ruthenium on the composite oxide.
Resumen de: WO2025171924A1
Method for producing a hydrogen product from ammonia, comprising the steps of: - Providing an ammonia feed stream; - Passing the ammonia feed stream to at least one ammonia pre-cracking reactor for producing a partly converted ammonia feed stream comprising ammonia, hydrogen and nitrogen by a pre-cracking reaction, said pre-cracking reactor comprising a pre-cracking catalyst bed comprising from 20 wt% to 60 wt% of nickel, preferably from 25 wt% to 50 wt% of nickel as a pre-cracking catalytically active material, - Passing the partly converted ammonia feed stream to an ammonia cracking reactor for producing an effluent gas stream comprising hydrogen and nitrogen and optionally also unconverted ammonia by a cracking reaction, said cracking reactor comprising a cracking catalyst bed comprising from 10 wt% to 20 wt% of nickel as a cracking catalytically active material.
Resumen de: WO2025172702A1
An apparatus comprising an electrolyser subsystem (20), a Haber Bosch subsystem (22), and an Ostwald subsystem (24), and a method for producing nitric acid. Fluid passageways are configured to: route hydrogen produced by the electrolyser subsystem (20) to the Haber Bosch subsystem (22) via a first path (26) for use in a Haber process at the Haber Bosch subsystem (22) to produce ammonia; route at least a portion of the ammonia produced by the Haber Bosch subsystem (22) to the Ostwald subsystem (24) via a second path (28) for use in an Ostwald process at the Ostwald subsystem (24) to produce nitric acid; and route at least a portion of steam produced using heat from the Ostwald subsystem (24) to the electrolyser subsystem (20) via a third path (30) for use as at least a part of an infeed gas for the electrolyser subsystem (20).
Resumen de: KR20250125006A
본 발명은 수전해 스택에 관한 것으로서, 직렬로 적층되는 복수의 스택 유닛과, 상기 복수의 스탯 유닛의 양단에 형성되는 엔드플레이트를 포함하여 구성되고, 상기 스택유닛은, 육각형 형상으로 형성되는 복수의 MEA를 포함하고, 상기 복수의 MEA는 인접하는 MEA와 서로 교대로 어긋나게 배치되고, 상기 엔드플레이트는 상기 복수의 MEA의 배치형상에 상응하는 형상을 가지는 것을 특징으로 하며, 복수의 MEA를 병렬로 배치하여 수전해 스택의 용량을 증가시킬 수 있고, MEA를 육각형으로 형성하여 MEA간의 간격이 일정하게 이격되어 MEA간에 전압, 전류 차가 일정하게 유지되어 효율이 높고, 장수명을 기대할 수 있으며, 육각형으로 형성된 복수의 MEA를 2열로 배치하되 서로 교대로 어긋나게 배치하여, 1.5열의 배치에 가깝게 배치할 수 있으므로, 스택유닛이 차지하는 면적을 작게하여 콤팩트하게 제조할 수 있다.
Resumen de: KR20250125005A
본 발명은 수전해 스택에 관한 것으로서, 복수의 장착구멍이 형성된 애노드측 플레이트와, 상기 애노드측 장착구멍에 상응하는 위치에 형성된 복수의 장착구멍을가지는 캐소드측 플레이트와, 상기 장착구멍에 상응하는 구멍을 가지며 상기 애노드측 플레이트와 상기 캐소드측 플레이트가 연결되는 수전해 스택바디와, 상기 장착구멍에 착탈가능하게 삽입되는 복수의 셀 모듈을 포함하여 구성되고, 상기 셀 모듈은, MEA를 포함하며 기둥형상으로 형성되는 MEA유닛과, 애노드측 유닛과, 캐소드측 유닛을 포함하여 구성되고, MEA유닛을 애노드측 플레이트와 캐소드측 플레이트에 착탈하게 구성함과 동시에 MEA유닛을 기둥형으로 복수개가 착탈가능하게 구성함으로써 스택의 용량을 용이하게 증가시킬 수 있고 스택에 용이하게 착탈가능하게 구성하여 조립이 용이하고 경제적인 수전해 스택을 제공할 수 있다. 또한, 기둥형상으로 병렬로 조립하여 고압의 압력을 사용하더라도 MEA가 손상되지 않을 뿐만 아니라 기둥형상의 MEA지지체가 애노드측 플레이트와 캐소드측 플레이트에 단단하게 체결되어 축하중을 지지할 수 있으므로 고압 압력에도 견딜 수 있는 수전해 스택을 제공할 수 있다.
Resumen de: KR20250125178A
본 발명은 수소 생산 원료인 암모니아를 가열하여 분해 반응을 수행하기 위한, 시스템의 준비(start-up), 시스템 질소 퍼징 및 버너 공기공급, 분해반응기 승온, 암모니아 공급, 분해가스 생성확인 및 시스템 정지(shut-down)를 순차적으로 수행하는 정제된 수소를 생산하는 암모니아를 이용한 수소 생산 시스템 및 그 제어방법에 관한 것이다.
Resumen de: US2025267782A1
A system which facilitates the joining of metal or ceramic objects via heat in an oxygen-depleted atmosphere comprising: a plasma flame generator (torch), regulator, gas purifier, in-situ hydrogen generator, liquid pumps, battery, and electrical power supply. The electrical system is self-contained and is intended to provide equal or greater functionality to that of existing TIG/Plasma arc welders but in a portable form-factor free from reliance on expensive and cumbersome high pressure compressed gas bottles.
Resumen de: US2025266688A1
A system network includes at least two electrolysis systems, a power supply source, and a central supply line. The central supply line is connected to the secondary side of a transformer. The primary side of the transformer can be fed with energy from the power supply source. The transformer is designed for an operating frequency above the mains frequency of the public power grid, and so a higher-frequency AC grid is formed, to which the electrolysis systems are connected via the central supply line.
Resumen de: US2025266470A1
Electro-energy or electro-synthetic cells whose architectures allow them to be readily stacked into a cell stack. The cells include polymeric cell frames that incorporate within them, functional materials, such as an inter-electrode separator, electrodes, metallic bipolar plates, and the like. For example, an electro-energy or electro-synthetic cell includes a polymeric cell frame, a first electrode and a second electrode, and an inter-electrode separator positioned between the first electrode and the second electrode. A compressive component is positioned adjacent to the first electrode. The compressive component may be a metallic bipolar plate compressive component and/or a metallic porous transport layer compressive component. In one example the polymeric cell frame is sealed to the metallic bipolar plate by a polymer-to-metal join. In another example at least one polymeric structural locating component locates the metallic bipolar plate against the polymeric cell frame. A cell stack includes a plurality of the cells.
Resumen de: US2025266534A1
A water electrolysis system includes: a water electrolysis device including a membrane electrode assembly formed by sandwiching an electrolyte membrane between an anode and a cathode, the water electrolysis device being configured to generate oxygen gas at the anode by supplying water to the cathode and electrolyzing the water; and a water supply device configured to supply, to the anode, water generated in association with power generation of a fuel cell stack.
Resumen de: AU2024219118A1
The present application relates to a flow field for use in an electrolysis cell comprising one or more sheets of porous material with a corrugated structure. The electrolysis cell comprises a membrane, an anode, a cathode, an anode reinforcement layer, a cathode reinforcement layer, an anode flow field, a cathode flow field, and a bipolar plate assembly comprising an embedded hydrogen seal. The anode flow field comprises one or more porous sheets having at least one straight edge and at least one of the porous sheets has the form of a corrugated pattern with a plurality of peaks and valleys whose axes are generally aligned with one straight edge of the sheet. The anode flow field geometry simultaneously provides resiliency, for efficient mechanical compression of the cell, and well-distributed mechanical support for the anode reinforcement layer adjacent to the anode flow field.
Resumen de: EP4601053A1
An electrochemical cell stack includes at least two electrochemical cells that each contain a fuel electrode, an air electrode, and an electrolyte located between the fuel electrode and the air electrode, at least one interconnect located between the at least two electrochemical cells, and a contact layer that electrically connects the at least one interconnect and the fuel electrode of an adjacent one of the at least two electrochemical cells. The contact layer includes first wires that extend in a first direction, the first wires including thinner first wires and thicker first wires, the thicker first wires having a thickness that is larger than a thickness of the thinner first wires, and second wires that extend in a second direction different from the first direction.
Resumen de: AU2024307301A1
A method and arrangement of performing electrolysis by an electrolyzer includes an operational mode and a partial operational mode. During the operational mode operational power from a main power source (202) to a first (808) and second set of stacks (806). In response to detecting a power insufficient for the first and the second set of stacks (806) to perform electrolysis without impurities, the electrolyzer is set to a partial operational mode, wherein the first set of stacks (808) perform electrolysis without impurities and the second set of stacks (806) do not perform electrolysis.
Resumen de: WO2025174971A1
A method can include coupling sulfur dioxide depolarized electrolysis (e.g., electrochemical oxidation of sulfur dioxide to sulfuric acid with electrochemical reduction of water to hydrogen) with the contact process to facilitate formation of high concentration sulfuric acid with concurrent hydrogen production. The sulfuric acid and hydrogen can optionally be used cooperatively for downstream processes (e.g., metal extraction from ore, fertilizer production, hydrocarbon processing, etc.).
Resumen de: WO2025174066A1
The present application relates to a plasmonic phenomenon-based symmetric ammonia electrolysis system and an ammonia electrolysis method using same. A hybrid electrode, according to embodiments of the present application and the symmetric ammonia electrolysis system comprising same, may reactivate the surface of a catalyst by utilizing plasmonic phenomena during an electrochemical reaction by using a plasmonic-active electrode (antenna-reactor) composite electrode.
Resumen de: WO2025173338A1
This pretreatment method comprises, prior to incorporating a mesh plate (80) into a cell, exposing the mesh plate (80) to ultrasonic waves while the mesh plate (80) is immersed in water. Hydrophilicity of the mesh plate (80) is thereby improved. Stagnation of gas in the mesh plate (80) when an electrochemical reaction is performed in a cell can therefore be suppressed. The efficiency of an electrochemical reaction in a cell can be improved as a result.
Resumen de: WO2025173297A1
A water splitting device for generating hydrogen when irradiated with light, said water splitting device comprising: an electrolytic bath that is filled with an electrolytic solution; and a water splitting cell that is immersed in the electrolytic solution and comprises a laminate in which an anode, a hole transport layer, a Perovskite battery cell, an electron transport layer, and a cathode have been laminated in the given order, and an electrically insulating protective material which covers the outer periphery of the laminate.
Resumen de: WO2025171442A1
The invention is directed to methods of electrolysis and cells used for the same. The method comprising generating and delivering a humidified gas stream or liquid water to an electrolysis cell comprising an anode side, a cathode side and an ion permeable membrane located between them wherein the anode side has a first catalytic layer and the cathode side has a second electrolytic layer, contacting the humidified gas stream or liquid water with the first catalytic layer and contacting a portion of the ion- permeable membrane on the cathode side with liquid water, applying a voltage such that oxygen gas is generated at the anode and hydrogen gas is generated at the cathode. The invention is also related to an electrolytic cell for performing the methods and a kit that allows for retrofitting existing cells to perform the methods.
Resumen de: US2025263859A1
A method of producing hydrogen and/or bromine by electrolysing hydrogen bromide using a fluoropolymer membrane having a glass transition temperature Tg≥110° C. in an electrolysis of hydrogen bromide, wherein the hydrogen bromide stems from a sulfuric acid synthesis.
Resumen de: US2025263853A1
A control device includes a controller that controls a first power supplier structured to supply power to an electrolytic bath for generating an organic compound and a second power supplier different from the first power supplier and structured to supply power to the electrolytic bath. The controller controls the second power supplier based on a change in a voltage between a cathode electrode and an anode electrode provided in the electrolytic bath to a specified voltage, a change in a potential of the cathode electrode to a specified potential ECA1, or a change in a potential of the anode electrode to a specified potential EAN1.
Nº publicación: US2025263847A1 21/08/2025
Solicitante:
UNIV CALIFORNIA [US]
The Regents of the University of California
Resumen de: US2025263847A1
A system and method to precipitate calcium hydroxide at low temperatures (T<40° C.) using an electrolytic reactor with hydrodynamic separation. The calcium can be supplied by any calcium bearing material such as calcium carbonate or basalt rock, or from industrial wastes such as brine or steel slag. The solid feedstock undergoes dissolution, whereas the brine may be utilized as is. Once in solution, the feed stream is directed towards an electrolyzer reactor which comprises a cathode, an anode, and a membrane separator. At the cathode, or in a separate precipitation chamber, an alkaline catholyte solution containing calcium hydroxide (portlandite) and magnesium hydroxide (brucite) precipitates, and hydrogen gas is produced.
BOPI
Sede Electrónica
