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535
resultados
Última actualización
08/08/2025 [07:02:00]
Resultados 450 a 475 de 535
Resumen de: CN120138702A
本发明涉及电解水催化剂技术领域，公开了一种催化材料及其制备方法、电解水析氢催化电极和电解水析氢的方法，所述催化材料包括载体以及负载在载体上的活性金属组分；其中，所述载体为含有S空位的过渡金属硫化物，且至少部分所述过渡金属硫化物为1T相；所述活性金属组分选自VIII族金属和IB族金属中的至少一种。所述催化材料具有优异的HER催化性能，催化稳定性好。
Resumen de: CN120138721A
本发明提供一种用于海水电解制氢的高稳定性复合隔膜及其制备方法，所述复合隔膜包括依次相连的增强层、多孔层及表面强化层；本发明通过采用增强层、多孔层及表面强化层这种结构设计及制备，得到具有高稳定性的海水电解用隔膜，而且该隔膜具有较低的面电阻和较高的强度；通过在表面强化层中添加有金属氧化物，在隔膜形成一层保护膜，有效减少海水对隔膜的腐蚀作用，并且由于金属氧化物的导电性，能够降低隔膜的电阻，提高电解效率；另一方面，通过控制表面强化层中微孔结构的大小，在不影响隔膜离子传导性能的情况下，有效将沉淀物阻隔在隔膜外，提高隔膜耐堵塞性，使隔膜实现在海水电解过程中的长期稳定工作。
Resumen de: KR20250085126A
본 발명은 수전해 수소발생반응용 Pt/LaNiO3 촉매에 관한 것으로서, 상세하게는, 수전해 시스템에서 수소발생반응(HER) 전극에 적용되는 신규 촉매로써 수전해시 동일 전압에서의 수소발생 반응성이 우수하며, 또한 과전압을 낮추는 효율, 촉매 안정성이 우수한 수전해 수소발생반응용 Pt/LaNiO3 촉매에 관한 것이다.
Resumen de: DE102023134698A1
Die Erfindung betrifft ein Verfahren zum Herstellen einer Elektrode (10) für die Verwendung bei der alkalischen Elektrolyse von Wasser, das Verfahren umfassend Bereitstellen eines metallischen Substrats (12), Bereitstellen eines Beschichtungswerkstoffes (26), umfassend ein Pulver (28) aus einem Katalysatormaterial (20) und nicht-metallische Partikel (24), und Beschichten zumindest eines Abschnitts des Substrats mit dem Beschichtungswerkstoff. Die Erfindung betrifft auch derart herstellte Elektroden.
Resumen de: KR20250085401A
본 발명은 이퓨얼(e-fuel)을 제조하기 위한 시스템 및 방법에 관한 것으로, 본 발명에 따르면, 최근, 환경오염 문제가 날로 심각해지면서 기존의 석유나 가스 등의 연료를 대신하여 친환경 연료에 대한 요구가 높아짐에 따라 기존의 화석연료에 비해 이산화탄소 배출량을 크게 감소할 수 있는 친환경 연료로서 이퓨얼(E-Fuel)이 제시된 바 있으나, 전체적인 제조공정이 복잡하여 가격이 매우 높은 단점이 있었던 종래기술의 이퓨얼 제조시스템 및 방법들의 문제점을 해결하기 위해, 수소(H2)와 이산화탄소(CO2)를 이용하여 촉매반응을 통해 친환경적으로 이퓨얼을 생성할 수 있도록 구성됨으로써, 보다 친환경적으로 이퓨얼을 생산할 수 있는 동시에, 이퓨얼 제조시스템의 생산성을 높이고 전체적인 비용을 절감할 수 있도록 구성되는 수소와 이산화탄소를 이용한 이퓨얼 제조시스템 및 방법이 제공된다.
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: WO2025119096A1
The present disclosure relates to a method for preparing an oxygen evolution electrode, an oxygen evolution electrode and an electrolytic cell. The method (100) comprises: preparing a thin film on the surface of a conductive substrate by means of magnetron sputtering, wherein the thin film at least contains a catalyst substance serving as a catalyst in an oxygen evolution reaction and a soluble substance that can dissolve in an alkaline solution (102); and making the thin film come into contact with the alkaline solution, such that the soluble substance dissolves in the alkaline solution, so that a porous catalyst layer consisting of the catalyst substance is formed on the surface of the conductive substrate, and the conductive substrate and the porous catalyst layer form an oxygen evolution electrode (104). The method of the present disclosure can improve the catalytic activity and stability of an oxygen evolution electrode, and facilitates large-scale oxygen evolution electrode preparation, and can effectively reduce the production cost and the application cost.
Resumen de: WO2025121289A1
Provided is a membrane electrode assembly capable of suppressing hydrogen crossover. The membrane electrode assembly is for solid macromolecule-type water electrolysis and comprises: an anode having a catalyst layer; a cathode having a catalyst layer; and a solid macromolecule electrolyte membrane disposed between the anode and the cathode. At least one of the catalyst layer in the anode and the catalyst layer in the cathode includes a fluorine-containing polymer having an ion exchange group, and having a unit having a cyclic ether structure.
Resumen de: WO2025122112A1
The invention relates to a hydrogen sulfide separation system (A) and method for producing pure hydrogen (30) with high efficiency and environmental sustainability for the energy sector, while also converting sulfur (40) into economic value by producing sulfuric acid (60) The system includes a gasification unit (100) to convert liquid hydrogen sulfide (10) into gaseous hydrogen sulfide (20), an electrolyzer (200) equipped with a palladium-alloy membrane (290) to separate hydrogen (30) and sulfur (40) through electrolysis, and an oxidation unit (300) to oxidize sulfur (40) using hydrogen (30) and oxygen (50), resulting in sulfuric acid (60). The method enhances energy efficiency, reduces operating costs, and offers a sustainable solution for hydrogen production.
Resumen de: US2025186304A1
A hydrogen generation device includes a tubular tank and a top lid combined with the tank. An immersion tube in which a hydrogen generating agent package is stuffed is placed in the tank. The hydrogen generating agent package is submerged in water after water is poured in the tank to generate hydrogen, which is released through a tank opening of the tank. The hydrogen generating agent package accommodates hydrogen generating agent powders including calcium oxide and aluminum powders, both of which are mixed and wrapped with a nonwoven fabric, as well as a little catalytic sodium carbonate added inside. For inhibition of free radicals and promotion of metabolism, the hydrogen generation device is further provided with a connector and a hose for a skin-care instrument, a nasal mask, an eye shield or an ear cleaner through which hydrogen is supplied as required.
Resumen de: US2025187912A1
A catalyst includes a ruthenium metal loaded on a support, wherein the support has a chemical formula of AxB(1-x)Oy. A is an alkaline earth metal, B is aluminum, zinc, cerium, manganese, or a combination thereof, x is 0.05 to 0.50, and y is chemical stoichiometry. The catalyst may further include an auxiliary agent loaded on the support. The catalyst can be used to decompose gaseous ammonia.
Resumen de: US2025188621A1
Device for generating hydrogen gas and oxygen gas from water, comprising a case, which forms a hydrolysis chamber designed to contain an amount of water; electrode means that act as a cathode and an anode; and gas-separating means, disposed in the hydrolysis chamber between the cathode and the anode, which comprise a permeable membrane segment suitable for preventing the generated hydrogen gas and oxygen gas from passing through the permeable membrane segment and mixing together, the hydrolysis chamber being divided into a first portion that contains the cathode and a second portion that contains the anode, wherein the first and second chamber portions are in fluid communication with respective pipes for hydrogen gas and oxygen gas. Another object of the invention is a system for the same purpose, comprising at least one device as described above.
Resumen de: US2025188632A1
An electrolytic method of loading hydrogen into a cathode includes placing the cathode and an anode in an electrochemical reaction vessel filled with a solvent, mixing a DC component and an AC component to produce an electrolytic current, and applying an electrolytic current to the cathode. The DC component includes cycling between: a first voltage applied to the cathode for a first period of time, a second voltage applied to the cathode for a second period of time, wherein the second voltage is higher than the first voltage, and wherein the second period of time is shorter than the first period of time. The peak sum of the voltages supplied by the DC component and AC component is higher than the dissociation voltage of the solvent. The AC component is selected based on a local minimum of a Nyquist plot to minimize energy loss while maintaining hydrogen transport.
Resumen de: US2025188620A1
A new energy hydrogen production system and a control method therefor. In the new energy hydrogen production system, a new energy input module supplies power to electrolytic cells by means of a power conversion module; and a control system of the new energy hydrogen production system is used for controlling, according to the power of the new energy input module, the power conversion module to work, such that among N electrolytic cells in an operation state, at least N-1 electrolytic cells work in a preset load range. The preset load range is a corresponding load range having the highest system efficiency in an electrolytic cell working range division result prestored in the control system.
Resumen de: US2025188628A1
An electrolysis cell for chlor-alkali or alkaline water electrolysis comprises two cell elements each defining an electrode chamber by providing a back wall and sidewalls of the electrode chambers, an electrode accommodated in each of the electrode chambers, and a sheet-like separator extending in a height direction and a width direction of the electrolysis cell, the separator being interposed in a joint between the two cell elements and providing a separating wall between the electrode chambers, wherein at least one of the electrodes is made from a sheet of metallic mesh, which is supported by a plurality of webs attached to the back wall of the respective electrode chamber, the webs extending in the height direction of the electrolysis cell, and wherein a plurality of ribs extending in the width direction of the electrolysis cell is carried by the webs, wherein the electrode is disposed on the plurality of ribs.
Resumen de: US2025188630A1
An oxynitride catalyst includes NiaMbNcOd, wherein M is Nb, Mn, or Co, a>0, b>0, c>0, d>0, and a+b+c+d=1. A hydrogen evolution device includes an anode and a cathode dipped in an electrolyte, and the anode includes the oxynitride catalyst. The oxynitride catalyst can be disposed on a support. The oxynitride catalyst may have a polyhedral structure.
Resumen de: US2025188633A1
The present invention relates to the generation of at least one electrolysis product, in particular to a hydropower-electrolysis system, a hydro power plant and a method for generating at least one electrolysis product. An electrolysis assembly includes a plurality of electrolysis cells configured to generate, upon provision of a direct electrical current, at least one electrolysis product from a supply medium. A hydropower assembly is electrically connected to the electrolysis assembly for operating the electrolysis cells of the electrolysis assembly based on electrical power generated by the hydropower assembly.
Resumen de: US2025188565A1
Improved processes and systems are disclosed for producing renewable hydrogen suitable for reducing metal ores, as well as for producing activated carbon. Some variations provide a process comprising: pyrolyzing biomass to generate a biogenic reagent comprising carbon and a pyrolysis off-gas; converting the pyrolysis off-gas to additional reducing gas and/or heat; reacting at least some of the biogenic reagent with a reactant to generate a reducing gas; and chemically reducing a metal oxide in the presence of the reducing gas. Some variations provide a process for producing renewable hydrogen by biomass pyrolysis to generate a biogenic reagent, conversion of the biogenic reagent to a reducing gas, and separation and recovery of hydrogen from the reducing gas. A reducing-gas composition for reducing a metal oxide is provided, comprising renewable hydrogen according to a hydrogen-isotope analysis. Reacted biogenic reagent may also be recovered as an activated carbon product. Many variations are disclosed.
Resumen de: US2025188631A1
An embodiment water electrolysis catalyst includes iridium oxide including a rutile phase and iridium-nickel oxide including a hexagonal phase. An embodiment method of preparing a water electrolysis catalyst includes preparing a mixture including an iridium precursor, a nickel precursor, and cysteamine hydrochloride, drying the mixture, grinding the dried mixture, and firing a ground product, wherein the water electrolysis catalyst includes iridium oxide including a rutile phase and iridium-nickel oxide including a hexagonal phase.
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: AU2023397261A1
The invention relates to an electrolysis system (1) with a pressure electrolyzer (3) for generating hydrogen (H
Resumen de: WO2025118002A1
The invention relates to a method (1000) for operating an electrolysis system (10) which has at least one electrolyzer stack (100), with an air side (120) and a reactant side (130), and different operating situations. The method (1000) has the steps of detecting the operating situation of the electrolysis system (10) and controlling the electrolysis system (10) on the basis of the detected operating situation. In the method (1000), the operating situation of the electrolysis system (10) is determined to be a special operating situation if the detected operating situation deviates from a normal operation of the electrolysis system (10) for generating a synthesis gas from a reactant as intended. For the detected special operating situation, at least one electric heater (221, 222) is controlled so as to control the temperature of air which can be supplied to the air side (120) in order to control the temperature of the electrolyzer stack (100). Furthermore, for the special operating situation, a heating gas is guided to the reactant side (130), said heating gas having at least one protective gas. The invention also relates to a computer program product, to a control device (20) for carrying out the method (1000), and to an electrolysis system (10) comprising the control device (20).
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.
Nº publicación: DE102023212354A1 12/06/2025
Solicitante:
BOSCH GMBH ROBERT [DE]
Robert Bosch Gesellschaft mit beschr\u00E4nkter Haftung
Resumen de: DE102023212354A1
Elektrolysesystem mit einem Stack (1), der einen Anodenraum (2) und einen Kathodenraum (3) aufweist und der dazu eingerichtet ist, Wasser elektrolytisch in Wasserstoff und Sauerstoff aufzuspalten, wobei der Kathodenraum (3) einen Einlass (9) und einen Auslass (10) aufweist. Dem Stack (1) ist ein Gas-Flüssig-Separator (11) zugeordnet, der über eine Ausleitung (12) mit dem Auslass (10) des Kathodenraums (3) verbunden ist und in dem Flüssigkeit von Gas getrennt wird, wobei der Gas-Flüssig-Separator einen Gasauslass (13) zum Abströmen des abgetrennten Gases aufweist. Der Gasauslass (13) mündet in einen zentralen Gas-Flüssig-Separator (25) zur Trennung von Flüssigkeit und Gas.
BOPI
Sede Electrónica
