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965
resultados
Última actualización
29/10/2026 [07:18:00]
Resumen de: EP4831348A1
0001 Provided is a membrane/catalyst layer structure that can maintain a good power generation performance or good electrolysis performance on a long-term basis. The membrane/catalyst layer structure has a first catalyst layer disposed opposite a second catalyst layer, and a diaphragm containing at least a polymer electrolyte membrane is sandwiched therebetween. The first catalyst layer and the second catalyst layer contain, as a first metal, the element platinum and/or the element iridium. The first catalyst layer and/or the second catalyst layer further contains, as a second metal, at least one element selected from the group consisting of gold, silver, copper, nickel, palladium, cobalt, rhodium, iron, ruthenium, and osmium. The diaphragm contains a compound N having a nitrogen-containing heterocycle.
Resumen de: EP4574750A1
The invention relates to a process (1) for the production of hydrogen from ammonia comprising the following steps:- providing an ammonia feed stream to a reactor (2),- feeding an oxidant stream comprising oxygen to the reactor (3),- in a first zone of the reactor, non-catalytically partially oxidizing the ammonia feed stream with the oxidant stream (4), thus generating heat and producing a partially oxidized stream containing ammonia, nitrogen, water, amounts of nitrogen oxides, and potentially a residual portion of oxygen.- in a second zone of the reactor, homogenizing the temperature and concentration of the partially oxidized stream (5), thus producing an homogenized stream containing ammonia, nitrogen, and water,- in a third zone of the reactor, catalytically cracking ammonia contained in the homogenized stream in an endothermic reaction using the generated heat (6), thus creating a cracked gas product containing nitrogen and hydrogen- withdrawing the cracked gas product from the reactor (7).
Resumen de: NL2036587B1
The present application discloses a method for producing an iridium oxide film on a particulate substrate having an electrical conductivity of >0.01 S/cm (as detected by powder measurements) by chemical vapour deposition at a pressure in the range of from to 1010 KPa, comprising: (i) providing the particulate substrate in a reaction chamber; (ii) contacting the particulate substrate with a vaporized iridium oxide precursor gas, thereby forming a homogenously distributed film of iridium precursor material on the substrate; (iii) contacting the material comprising the homogenously distributed layer with a vaporized oxidant to allow the oxidant to react with the homogenously distributed iridium precursor film on the substrate; and (iv) optionally, repeating until steps (ii) to (v); to obtain a particulate material comprising a surface film of a desired thickness comprising homogeneously distributed discrete iridium oxide clusters with an average diameter in the range of from 0.5 to 5 nm.
Resumen de: EP4831357A1
The present invention provides a hydrogen vent system for discharging hydrogen generated in a high-temperature water electrolysis stack to the outside, comprising: a first pipe unit connected to the high-temperature water electrolysis stack and having a curved portion; a drain line which is connected to the first pipe unit and through which condensed water is drained; and a discharge unit which is connected to the first pipe unit and which releases hydrogen upward into the air, wherein a surge tank that maintains pressure and moves the condensed water to the drain line is disposed in the first pipe unit.
Resumen de: EP4831355A1
The present application relates to the technical field of water electrolysis for hydrogen production and discloses a hydrogen removal layer, a preparation method therefor, a hydrogen removal proton exchange membrane, a membrane electrode, and a water electrolysis hydrogen production apparatus. The hydrogen removal layer comprises the following components in parts by weight: 10-20 parts of a metal oxide, 10-20 parts of a catalyst, and 2-10 parts of an ionomer. The catalyst comprises at least one of a platinum black catalyst, an iridium black catalyst, and a palladium black catalyst. The hydrogen removal layer described in the present application can effectively reduce the hydrogen content in oxygen on the anode side of a proton exchange membrane.
Resumen de: WO2025129214A1
The invention relates to an electrolyser for alkaline hydrogen electrolysis, comprising: a direct voltage source, in particular a rectifier (1) having an electrical positive pole (2) and an electrical negative pole (3); media inlet lines (4) for an electrolysis medium; and media outlet lines (5) for product media; wherein a plurality of electrolysis blocks (6) which are connected in series via electrical connecting lines (9) are connected between the positive pole (2) and the negative pole (3), wherein the electrolysis blocks (6) each have a number of electrolysis cells (7) which are electrically connected in series and are mechanically clamped so that they are flush with one another, wherein the media inlet lines (4) and the media outlet lines (5) each extend serially through the electrolysis blocks (6) and are distributed within each individual electrolysis block (6) to individual cell inlet lines (4', 4") and individual cell outlet lines (5', 5") of the electrolysis cells (7).
Resumen de: WO2025131585A1
The invention relates to a hydrogen production facility (222) comprising a hydrogen recirculation assembly (100, 200). The hydrogen production facility (222) comprises at least one main compressor (226, 426) which is fluidically connected to at least one electrolyzer (224, 424) via a main hydrogen flow fluid network (232), wherein the hydrogen recirculation assembly (100, 200) comprises a first fluid inlet (102, 202) which can be connected to a first hydrogen leakage point (240) of the hydrogen production facility (222) and which is connected to at least one collecting container (106, 206) of the hydrogen recirculation assembly (100, 200) via at least one first fluid connection (110, 210); a second fluid inlet (104, 204) which can be connected to a second hydrogen leakage point (242) of the hydrogen production facility (222) and which is connected to the collecting container (106, 206) via at least one second fluid connection (112, 212); at least one recirculation compressor (108, 208) which is connected to the collecting container (106, 206) via at least one third fluid connection (114), and at least one first fluid outlet (118, 218) which can be connected to a main hydrogen flow fluid network (232) of the hydrogen production facility (222) and which is connected to the recirculation compressor (108, 208) via at least one fourth fluid connection (116).
Resumen de: WO2025131972A1
The invention relates to a method for preparing a membrane which comprises the following steps, in succession: preparing a layer of polyethersulfone nanofibres by electrospinning a polyethersulfone solution; heating the nanofibres to soften them; cooling the nanofibres; and impregnating the nanofibres with an ionomer to form the membrane. A membrane of this kind consists of polyethersulfone nanofibres that have points at which they join to the nanofibres adjacent to them. The membrane has ionic conductivity properties and can be used in a fuel cell or an electrolyser.
Resumen de: EP4831328A1
0001 A stainless steel for solid oxide electrolysis cells contains, on a mass basis, C: 0.030% or less, Si: 0.20% or less, Mn: less than 0.30%, P: 0.050% or less, S: 0.0030% or less, Cr: from 19.0% to 24.0%, Mo: 2.5% or less, Al: from 0.01% to 0.15%, Mg: from 0.0001% to 0.0100%, N: 0.030% or less, Nb: 0.40% or less, Ti: 0.40% or less, Ni: 1.00% or less, and Cu: 1.00% or less, with the balance being Fe and impurities. In the stainless steel for solid oxide electrolysis cells, an average particle diameter of inclusions is from 0.2 µm to 3.0 µm, a number density of the inclusions is from 30 to 150 particles/mm<2>, an aspect ratio of the inclusions is more than 1.0 and less than 3.0, and a proportion, among inclusions, of Mg-containing inclusions having an Mg concentration of 0.5 mass% or more is 0.30 or more.
Resumen de: WO2025131321A1
The invention relates to a cell unit (12) comprising a cell layer (18) and an interconnector plate (28), wherein a periphery (22) of the cell layer (18) is attached to a periphery (30) of the interconnector plate, wherein a central portion (24) of the cell layer and a central portion (32) of the interconnector plate define a fluid volume (34) therebetween, and wherein a fluid guidance insert (52) is disposed in the fluid volumes, said fluid guidance insert defining a fluid channel system for conveying fluid between at least one fluid port of the cell unit and the fluid volume.
Resumen de: WO2025132918A1
Disclosed is an electrolysis cell element (1) comprising, a support structure (2) comprising an inner aperture (3), and a bipolar plate (4) being suspended in the inner aperture (3). The support structure (2) comprises a structure core (5) and a coating (6), wherein the coating (6) includes a thermoplastic material at least partly enclosing the structure core (5) and wherein the bipolar plate (4) is suspended in the inner aperture (3) by means of the coating (6). An electrolysis cell stack (10) and use of an electrolysis cell stack (10) is also disclosed.
Resumen de: EP4830836A1
The present disclosure relates to a method for preparing a catalyst for an oxygen evolution reaction in a water electrolysis cell, and a water electrolysis cell membrane-electrode assembly and a water electrolysis cell, which comprise the catalyst prepared using same, and the method for preparing a catalyst for an oxygen evolution reaction in a water electrolysis cell comprises preparing a plurality of noble metal oxide seeds, and preparing a noble metal oxide aggregate by using the plurality of noble metal oxide seeds, thereby increasing the surface area thereof by means of pores between noble metal oxide particles, and thus performance and durability can be improved.
Resumen de: EP4831351A1
0001 The present disclosure relates to a catalyst for an oxygen evolution reaction of a water electrolysis cell, a manufacturing method therefor, a membrane-electrode assembly for a water electrolysis cell including same, and a water electrolysis cell. The catalyst for the oxygen evolution reaction of a water electrolysis cell includes a heterogeneous noble metal composite which has a nanowire shape and includes different first and second noble metal oxides in a node structure, whereby the catalyst can reduce the amount of the noble metals used while improving performance and can enhance performance and durability depending on the types and lengths of the noble metals forming the heterogeneous noble metal composite.
Resumen de: WO2025129233A1
A process, a device and/or a system for flow based electrocatalytic chemical reactions, particularly hydrogenation reactions in a pH neutral or pH alkaline, and preferably, a high pH electrolyte, that is, an aqueous solution including a reactant, where electrolyte is either a water-in-oil emulsion or an oil- in-water emulsion.
Resumen de: EP4831353A1
0001 The present disclosure relates to: a catalyst for an oxygen evolution reaction of a water electrolysis cell; a method for manufacturing same; and a membrane-electrode assembly for a water electrolysis cell, and a water electrolysis cell, comprising same. More specifically, by manufacturing a catalyst for oxygen evolution reaction of a water electrolysis cell, having a structure in which active particles fill pores between nanoparticles of a support assembly manufactured in various forms or penetrate into the support assembly while being supported by the support assembly, performance is improved while reducing the amount of noble metal used. The active particles have stronger bonds than a form in which active particles are simply supported, and thus the active particles and the support assembly can have improved durability.
Resumen de: EP4831354A1
0001 An embodiment of the present invention provides a catalyst composition comprising: a catalyst comprising a platinum group element; and a support comprising a post-transition metal and a metal oxide. In addition, other embodiments of the present invention provide: an anode comprising the catalyst composition; and water electrolysis comprising the anode.
Resumen de: WO2025132935A1
Disclosed is an electrolysis cell stack (10) comprising a plurality of support structures (2) each including an inner aperture (3). The electrolysis cell stack (10) further comprises a plurality of cathodes (17), a plurality of anodes (18), a plurality of bipolar plates (4), a plurality of gas impermeable membranes (19), and pressing means 5 (20) arranged for pressing neighbouring support structures (2) of the plurality of support structures (2) against each other. Further, the electrolysis cell stack (10) comprises a liquid conduit (13) arranged between neighbouring support structures (2) of the plurality of support structures (2), wherein the liquid conduit (13) is arranged outside an outer periphery (40) of the inner aperture (3), deionized water (41) arranged 10 in the liquid conduit (13), and conductivity monitoring means (42) arranged for monitoring a conductivity of the deionized water (41). 0111 A method for detecting a leak in an electrolysis cell stack (10) and use of an electrolysis cell stack (10) is also disclosed.
Resumen de: EP4831352A1
0001 The present disclosure relates to: a catalyst for an oxygen evolution reaction of a water electrolysis cell; and a membrane-electrode assembly for a water electrolysis cell, and a water electrolysis cell, comprising same. By modifying the surfaces of core particles included in the catalyst for an oxygen evolution reaction of a water electrolysis cell, so as to be hydrophobic, durability against water during a reaction can be improved, and at the same time bonding with ion conductor side chains can be increased, thereby improving performance and durability.
Resumen de: EP4574751A1
0001 A process for producing a cracked gas product comprising hydrogen from an endothermic cracking reaction of an ammonia feedstock stream, said process comprising the following steps: - Recovering heat from said cracked gas product flowing in a cracked gas conduit (23) in a heat recovery step, - Redirecting the recovered heat to at least one secondary reactor in a heat redirection step, the secondary reactor comprising a gas reaction section in which a secondary catalytic endothermic conversion of the ammonia feedstock stream into the partially converted ammonia stream is performed, - Transferring the redirected heat to the secondary catalytic endothermic conversion through a thermal conductive layer at least partly delimiting the gas reaction section, in a heat transfer step the process comprising : - Performing a heat exchanges step by performing heat exchanges between the cracked gas product and the main catalytic endothermic conversion.
Resumen de: EP4831112A1
The present invention relates to a device for producing hydrogen from ammonia for a ship. According to the present invention, high-pressure hydrogen can be produced by using liquefied ammonia for a ship, and hydrogen can be economically produced by utilizing unconverted ammonia discharged from a decomposition reactor and off-gas discharged from a pressure swing adsorption device as a heat source for ammonia decomposition through a heat exchange network of the ship.
Resumen de: EP4831349A1
0001 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.
Resumen de: EP4831356A1
0001 A control method of a high-temperature water electrolysis system, according to a first embodiment of the present invention, comprises the steps of: determining an operating temperature of a solid oxide water electrolysis stack in a high-temperature water electrolysis system including the solid oxide water electrolysis stack; selecting an operation mode of the solid oxide water electrolysis stack by comparing the operating temperature with a supply temperature of gas supplied to the solid oxide water electrolysis stack; determining a target voltage applied to the solid oxide water electrolysis stack according to the operation mode of the solid oxide water electrolysis stack; and applying the target voltage applied to the solid oxide water electrolysis stack in a step-up manner according to the operation mode of the solid oxide water electrolysis stack.
Resumen de: WO2025132365A1
The invention relates to a device/method for capturing/converting CO2, comprising/using a CO2 capturing unit (2), a water electrolysis unit (5), an RWGS unit (8), an FT unit (13), a unit for converting by-products into syngas (28) and a hydrogen unit (20), in which a carbon dioxide separation unit (34) is arranged to: treat a first syngas (12) and a second syngas (29); produce a gaseous effluent depleted in carbon dioxide (18) and a gaseous effluent rich in carbon dioxide (35); and recycling the gaseous effluent rich in carbon dioxide (35) to the inlet of the RWGS section (8).
Resumen de: WO2025205879A1
The purpose of the present invention is to realize a diaphragm for alkaline water electrolysis having good airtightness even when a sheet-like gasket is used, and enabling execution of water electrolysis at a low cell voltage. A use method according to the present invention is characterized by using, as a diaphragm for alkaline water electrolysis, a porous film which contains a polyethylene, and in which the content of the polyethylene in resin components is 50 mass% or more, and the tortuosity is 3.00 or less.
Nº publicación: CN122959760A 23/10/2026
Solicitante:
苏州莒纳新材料科技有限公司上海莒纳新材料科技有限公司
Resumen de: CN116516365A
The invention discloses an electrolytic cell for hydrogen production through water electrolysis, and relates to the technical field of hydrogen production through water electrolysis, the electrolytic cell comprises an electrolytic cell body, the upper surface of the electrolytic cell body is provided with a top cover for sealing the top opening part of the electrolytic cell body, and two binding posts and two exhaust pipes are fixed on the top cover; and the top cover is provided with a first heat dissipation assembly which is used for dissipating heat of the binding post so as to reduce the possibility that the binding post is heated to damage the electrolytic cell body and the top cover, and the binding post is subjected to heat dissipation under the action of the first heat dissipation assembly. And the possibility that the electrolytic bath body and the top cover are damaged due to the fact that the binding posts are heated and cannot dissipate heat in the working process is reduced, the utilization rate of the device is increased, and the safety of the device is improved.
BOPI
Sede Electrónica
