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Hidrogen electrolític

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LastUpdate Última actualización 26/03/2026 [07:05:00]
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PROTON EXCHANGE MEMBRANE AND CATALYST-COATED PROTON EXCHANGE MEMBRANE

NºPublicación:  EP4713509A1 25/03/2026
Solicitante: 
UOP LLC [US]
UOP LLC
KR_20260012274_PA

Resumen de: CN121358894A

Proton exchange membranes are described. The proton exchange membrane includes: a reinforcing membrane; a continuous non-porous hydrogen recombination catalyst coating, the continuous non-porous hydrogen recombination catalyst coating comprising a mixture of a hydrogen recombination catalyst and a proton conducting ionomer; and a continuous non-porous cross-linked polyelectrolyte multilayer coating, the continuous non-porous cross-linked polyelectrolyte multilayer coating comprising alternating layers of a polycationic polymer and a polyanionic polymer. Catalyst coated membranes incorporating proton exchange membranes and methods of making proton exchange membranes are also described.

MULTIMETALLIC ALLOY ELECTROCATALYSTS FOR ACIDIC OXYGEN EVOLUTION REACTION

NºPublicación:  EP4713135A1 25/03/2026
Solicitante: 
BASF CORP [US]
UNIV CALIFORNIA [US]
BASF CORPORATION,
The Regents of the University of California
CN_121175118_PA

Resumen de: CN121175118A

Disclosed herein is a catalyst comprising a multi-component alloy having a single-phase structure. The multi-component alloy includes iridium, ruthenium, or a combination thereof in combination with at least four metals, wherein the at least four metals do not include platinum group metals. Methods of making the catalyst are also provided herein.

HYDROGEN GENERATING DEVICE PROVIDED WITH SOUND INSULATION COVER AND HYDROGEN GENERATING DEVICE PROVIDED WITH NOVEL POWER MODULE

NºPublicación:  EP4715089A1 25/03/2026
Solicitante: 
LIN HSIN YUNG [TW]
Lin, Hsin-Yung
EP_4715089_PA

Resumen de: EP4715089A1

Ahydrogen generator includes a water tank configured to contain electrolysis water, an electrolysis module disposed in the water tank and configured to electrolyze the electrolysis water to generate a gas comprising hydrogen, a humidifying module having a humidifying chamber configured to contain supplement water, a diffusing device disposed in the humidifying module and configured to diffuse the gas comprising hydrogen, and a sound-proof shield disposed in the humidifying module and including a sound-proof cavity, a connecting tube communicating the water tank and the diffusing device, and a gas outlet. The gas comprising hydrogen flows through the connecting tube and the diffusing device to the supplement water in the sound-proof cavity, and then passes through the gas outlet to the humidifying chamber. The sound-proof shield blocks sound generated by the gas comprising hydrogen flowing in the device, thereby improving user experience.

Chemical decomposition using catalytic reactor heated by magnetic induction

NºPublicación:  GB2644239A 25/03/2026
Solicitante: 
TECHNIP ENERGIES FRANCE [FR]
Technip Energies France
GB_2644239_PA

Resumen de: GB2644239A

A catalytic reactor 200 comprising a housing 202 coupled with a feedstock source configured to receive a flow of an inorganic compound in the gas phase that flows through the reactor. The housing includes a metal-based catalyst 106 selected to decompose the inorganic compound into one or more reaction products within a predefined temperature range. The metal based catalyst includes a heating agent that increases in temperature when exposed to a magnetic field. A coil 210 is positioned around the housing to provide the magnetic field to heat the metal-based catalyst using magnetic induction to be within the predefined temperature range. The amplitude of the magnetic field provided ranges from between 10 to 100 mT. Preferably the temperature range is between 300 and 700 °C.

ELECTROLYSIS INSTALLATION COMPRISING A SUPERVISION UNIT CONFIGURED FOR IMPROVED OPERATION

NºPublicación:  EP4716049A1 25/03/2026
Solicitante: 
JOHN COCKERILL HYDROGEN FRANCE [FR]
John Cockerill Hydrogen France
EP_4716049_PA

Resumen de: EP4716049A1

The invention relates to a water electrolysis installation (P) drawing power from an electrical network (NET) and providing an hydrogen production rate, the installation (P) comprising a plurality of clusters (C<sub>i</sub>). The installation (P) comprises a supervision unit (SU) defining, repetitively at successive sampling periods (k), the operating mode of the clusters (Ci) and a current setpoint (x<sup>i</sup><sub>k</sub>) of each active cluster (C<sub>i</sub>). The supervision unit (SU) comprises a candidate module (CM) configured to establish, during each sampling period, a candidate list (SL) consisting of all cluster pools capable of satisfying a production constraint and an optimization module (COM) configured to calculate, during each sampling period (k), for each cluster pool of the candidate list (SL), optimal current setpoints of the clusters and an associated efficiency value of said pool, the optimal current setpoints optimizing an objective function under the production constraint.

SEALING DEVICE WITH A COMPRESSION LIMITER

NºPublicación:  EP4715093A1 25/03/2026
Solicitante: 
AVL LIST GMBH [AT]
AVL FUEL CELL CANADA INC [CA]
AVL List GmbH,
AVL Fuel Cell Canada Inc
EP_4715093_PA

Resumen de: EP4715093A1

The present invention relates to a sealing device (100) for sealing a membrane electrode assembly (210) of an electrolyser cell (200) against one or more bipolar plates (220) of the electrolyser cell (200). The sealing device (100) comprises a seal (110), which extends in a width direction (101) between two opposite seal surface sides (111, 112) for sealing against respective seal counter-surfaces (211, 221) of the electrolyser cell (200) and further comprises a seal lateral side (113), which is provided laterally of the seal surface sides (111, 112). The sealing device (100) comprises further at least one limiter (120) for limiting a compression of the seal (110) in the width direction (101) by engaging two opposite limiter surface sides (121, 122) of the limiter (120) with the seal counter-surfaces (211, 221). The limiter (120) comprises further a limiter lateral side (123), which is provided laterally of the limiter surface sides (121, 122). At least a part of the limiter lateral side (123) is mechanically connected to at least a part of the seal lateral side (113).

CO2 AND H2O CO-ELECTROLYSER SYSTEM

NºPublicación:  EP4713502A1 25/03/2026
Solicitante: 
ECOLE POLYTECHNIQUE FED LAUSANNE EPFL [CH]
Ecole Polytechnique F\u00E9d\u00E9rale de Lausanne (EPFL)
KR_20250174963_PA

Resumen de: CN121152900A

A water and carbon dioxide co-electrolysis system (1) comprises an anion exchange membrane (AEM) cell (2) having at least one AEM cell (2c) comprising a cathode (8), an anode (12), and an AEM membrane (16) separating the cathode from the anode, and an anolyte circuit (18) in which the AEM membrane (16) is separated from the anode, an anolyte is fluidly connected to the anode (12) via an anolyte inlet (14i) and an anolyte outlet (14o) of the anode (12). The CO2 and H2O co-electrolysis system further comprises a mineralization system (3) comprising a mineralization unit (27) connected to the anolyte circuit (18) and comprising a mineralized metal configured to react with carbonate and bicarbonate ions circulating in the anolyte circuit (18) to form a metal carbonate.

WATER TREATMENT LOOP FOR CONNECTION TO AN ELECTROLYSIS STACK

NºPublicación:  EP4713297A1 25/03/2026
Solicitante: 
GRUNDFOS HOLDING AS [DK]
Grundfos Holding A/S
WO_2025016765_PA

Resumen de: WO2025016765A1

The invention relates to a water treatment loop (20) for connection to at least one electrolysis stack (8) of a hydrogen producing electrolysis plant (40), comprising: a water inlet section (21) into which water drained from at least one electrolysis stack (8) can be recirculated; an ion exchanger (2) arranged downstream of the water inlet section (21); a water outlet section (22) arranged downstream of the ion exchanger (2) and adapted to supply water treated by the ion exchanger (2) to said at least one electrolysis stack (8); and a catalytic surface (23) arranged downstream of the water inlet section (21) and upstream of the ion exchanger (2), so that water recirculated via the water inlet section (21) is made to contact the catalytic surface (23) prior to interaction with the ion exchanger (2), whereby oxidants such as peroxides are at least partly removed from the water, prior to being treated by the ion exchanger (2).

A MEMBRANE ELECTRODE ASSEMBLY AND A METHOD FOR THE MANUFACTURE THEREOF

NºPublicación:  EP4713978A1 25/03/2026
Solicitante: 
GORE & ASS [US]
GORE W L & ASS GMBH [DE]
W L GORE & ASS G K [JP]
W. L. Gore & Associates, Inc,
W. L. Gore & Associates GmbH,
W. L. Gore & Associates G.K
KR_20260025088_PA

Resumen de: WO2024236080A1

There is provided a membrane electrode assembly (MEA) for an electrochemical devices, such as for fuel cells and electrolyzers, particularly for polymer electrolyte membrane (PEM) fuel cells, said membrane electrode assembly comprising a composite electrolyte membrane comprising a reinforced electrolyte layer comprising at least one porous support, the porous support being at least partially imbibed with a first ion exchange material; and a first electrode comprising a reinforced electrode layer comprising a porous support, the porous support being at least partially imbibed with a first catalyst and a second ion exchange material, wherein the composite electrolyte membrane is in contact with the first electrode. Also provided is a composite electrolyte membrane, which can be used in the manufacture of the membrane electrode assembly and a fuel cell and electrolyzer comprising such a membrane electrode assembly. A method for the manufacture of the membrane electrode assembly, and a membrane electrode assembly obtainable by such a method are also disclosed.

ELECTROLYSIS CELL, ELECTROLYSIS BLOCK COMPRISING A PLURALITY OF CORRESPONDING ELECTROLYSIS CELLS, AND ELECTROLYSIS DEVICE COMPRISING A PLURALITY OF ELECTROLYSIS CELLS

NºPublicación:  EP4713504A1 25/03/2026
Solicitante: 
ANDRITZ AG MASCHF [AT]
Andritz AG
WO_2024234026_PA

Resumen de: WO2024234026A1

The invention relates to an electrolysis cell (1) for alkaline hydrogen electrolysis, comprising an electric anode (2), an electric cathode (3), a separation layer (4) which is substantially permeable to ions, is electrically insulating, is preferably in the form of a membrane or a diaphragm and is placed between the anode (2) and the cathode (3), and two electrically conductive half-shells (5, 5') which are electrically insulatingly connected to one another at their edges, wherein: the anode (2) is electrically conductingly connected to the first half-shell (5), and the cathode (3) is electrically conductingly connected to the second half-shell (5'); the anode (2), the cathode (3) and the separation layer (4) are placed between the two half-shells (5, 5') such that an anode chamber (6) and a cathode chamber (7) are formed; each of the half-shells comprises at least one inflow pipe (8, 8') and at least one outflow pipe (9, 9') for a medium; and each of the half-shells (5, 5') comprises a metal support frame (10, 10') for absorbing compressive forces, and a substantially flat outer skin (11, 11'), the support frame (10, 10') and outer skin (11, 11') being integrally bonded together, preferably welded together.

AN ELECTROLYSIS CELL AND A PROCESS FOR MANUFACTURING THEREOF

NºPublicación:  EP4713503A1 25/03/2026
Solicitante: 
ALLEIMA EMEA AB [SE]
Alleima EMEA AB
CN_121511327_PA

Resumen de: TW202446996A

The present disclosure relates to an electrolysis cell comprising a porous transport layer which comprises at least one metallic support layer and at least one macroporous layer which comprises titanium particles deposited on the at least one support layer so that the titanium particles are at least partly covered with at least one conductive titanium suboxide surface layer.

Chemical decomposition using catalytic reactor heated by magnetic induction

NºPublicación:  GB2644246A 25/03/2026
Solicitante: 
TECHNIP ENERGIES FRANCE [FR]
Technip Energies France
GB_2644246_PA

Resumen de: GB2644246A

A catalytic reactor comprising include a housing coupled with a feedstock source to receive a flow of ammonia in gaseous form that can flow through the catalytic reactor. The housing further comprises a catalyst comprising nickel or ruthenium nanoparticles and a heating agent configured to increase in temperature when exposed to a magnetic field, furthermore a coil is positioned around the housing to provide the magnetic field to heat the metal-based catalyst using magnetic induction to be within the predefined temperature range. When exposed to the catalyst at the appropriate temperature the ammonia is decomposed to one or more reaction products.

ELECTROLYSIS DEVICE

NºPublicación:  EP4715092A2 25/03/2026
Solicitante: 
TOSHIBA KK [JP]
Kabushiki Kaisha Toshiba
EP_4715092_A2

Resumen de: EP4715092A2

According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0 ≦ A ≦ B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or / and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.

电极、电解槽、生产方法及电极的应用

NºPublicación:  CN121729525A 24/03/2026
Solicitante: 
马克斯普朗克科学促进学会
CN_121729525_A

Resumen de: WO2025017013A1

The present invention relates to an electrode comprising or consisting of an electrocatalyst, the electrocatalyst comprising a metal boride, wherein the metal boride comprises at least one element M1 selected from Ti, Zr and Hf, and at least one element M2 selected from Co, Ni, Ru, Rh, Pd, Ir and Pt; and the metal boride contains more than 10 atomic % of M2. The present invention also provides an electrode obtainable by subjecting the electrode to an electrocatalytic reaction. It also relates to an electrolyzer comprising said electrode. It is also concerned with a method for producing an electrode, and use of an electrode in an electrocatalytic reaction.

一种金属基活性材料及其制备方法和应用

NºPublicación:  CN121700447A 20/03/2026
Solicitante: 
陕西华秦新能源科技有限责任公司
CN_121700447_PA

Resumen de: CN119020815A

The invention provides an electrode and a preparation method and application thereof, and belongs to the technical field of functional materials. The electrode comprises a substrate, a nickel transition layer wrapping the surface of the substrate and a porous active layer wrapping the surface of the nickel transition layer, the porous active layer is made of nickel-based alloy or cobalt-based alloy, and alloy elements in the nickel-based alloy and the cobalt-based alloy comprise zinc. The electrode provided by the invention has the characteristics of high activity, high stability and high binding force when being used for producing hydrogen by electrolyzing water.

引入参比电极的阴离子交换膜水电解系统及其制造方法

NºPublicación:  CN121712928A 20/03/2026
Solicitante: 
韩国科学技术院
CN_121712928_PA

Resumen de: WO2026019015A1

One embodiment of the present invention provides an anion-exchange membrane water electrolysis system incorporating a reference electrode, and a method for producing same. The anion-exchange membrane water electrolysis system incorporating a reference electrode according to one embodiment of the present invention places the reference electrode not between reduction (cathode) and oxidation (anode) electrodes but outside of a membrane electrode assembly, thereby allowing overvoltage of each electrode to be measured without degrading system performance.

电解装置

NºPublicación:  CN121700422A 20/03/2026
Solicitante: 
株式会社东芝
CN_121700422_PA

Resumen de: US20260078510A1

According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0≤A≤B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or/and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.

PHOTOELECTRODE

NºPublicación:  WO2026057565A1 19/03/2026
Solicitante: 
AIGEO GMBH [DE]
AIGEO GMBH
WO_2026057565_A1

Resumen de: WO2026057565A1

The invention relates to the field of photocatalytic hydrogen generation using sunlight and water. It addresses the technical problem of efficiently splitting water into hydrogen and oxygen using a specially designed photoelectrode. The photoelectrode comprises a semiconductive photo-harvester containing e. g. metal silicide, an oxidation cocatalyst with magnesium tin oxide, and a reduction cocatalyst of cobalt, nickel, and manganese alloys. The manufacturing method includes preparing a silicon-based photosensitive material, applying protective and anti- reflective coatings, and bonding the cocatalysts using techniques like sputtering. The photoelectrode is used in a transparent container filled with water and exposed to sunlight to generate hydrogen and oxygen, which can be collected and stored for energy applications, such as fuel cells. This invention aims to provide a renewable and environmentally friendly method for hydrogen production, overcoming challenges related to material stability and water impurities.

PRODUCTION AND USE OF AQUA-AMMONIA FOR STORAGE OF ENERGY OR HYDROGEN

NºPublicación:  AU2024341133A1 19/03/2026
Solicitante: 
KOLOMA INC
KOLOMA, INC
AU_2024341133_PA

Resumen de: AU2024341133A1

Provided herein are systems and methods for utilizing aqua-ammonia as an energy or hydrogen storage and transport medium. A method for delivering power, the method comprises converting enriched ammonia to electrical power and heat; and using the heat to remove water from aqua-ammonia, thereby producing the enriched ammonia.

PHOTOELECTRODE

NºPublicación:  WO2026057149A1 19/03/2026
Solicitante: 
AIGEO GMBH [DE]
AIGEO GMBH
WO_2026057149_A1

Resumen de: WO2026057149A1

The invention relates to the field of photocatalytic hydrogen generation using sunlight and water. It addresses the technical problem of efficiently splitting water into hydrogen and oxygen using a specially designed photoelectrode. The photoelectrode comprises a semiconductive photo-harvester containing metal silicide, an oxidation cocatalyst with magnesium tin oxide, and a reduction cocatalyst of cobalt, nickel, and manganese alloys. The manufacturing method includes preparing a silicon-based photosensitive material, applying protective and anti-reflective coatings, and bonding the cocatalysts using techniques like sputtering. The photoelectrode is used in a transparent container filled with water and exposed to sunlight to generate hydrogen and oxygen, which can be collected and stored for energy applications, such as fuel cells. This invention aims to provide a renewable and environmentally friendly method for hydrogen production, overcoming challenges related to material stability and water impurities.

WATER ELECTROLYSIS SYSTEM AND METHOD FOR CONTROLLING WATER ELECTROLYSIS SYSTEM

NºPublicación:  WO2026058474A1 19/03/2026
Solicitante: 
HITACHI LTD [JP]
\u682A\u5F0F\u4F1A\u793E\u65E5\u7ACB\u88FD\u4F5C\u6240
WO_2026058474_A1

Resumen de: WO2026058474A1

This water electrolysis system is provided with: a hydrogen production device unit that comprises a water electrolysis stack unit that includes one or more water electrolysis stacks that produce oxygen and hydrogen through an electrolytic reaction; a power source that supplies direct-current power to the one or more water electrolysis stacks; a pure water supply piping system that supplies pure water; an oxygen outflow piping system that causes oxygen produced by the water electrolysis stack unit to flow out to the outside; a hydrogen outflow piping system that causes hydrogen produced by the water electrolysis stack unit to flow out to the outside; an insulation unit that electrically insulates between the hydrogen production device unit and the ground; electrically insulating first insulated piping that is disposed in part of the pure water supply piping system; electrically insulating second insulated piping that is disposed in part of the oxygen outflow piping system; and electrically insulating third insulated piping that is disposed in part of the hydrogen outflow piping system.

NITRIDE TA3N5, AND PREPARATION METHOD THEREFOR AND USE THEREOF

NºPublicación:  WO2026056375A1 19/03/2026
Solicitante: 
SUZHOU TPRI ENER & ENVIRO TECH CO LTD [CN]
\u82CF\u5DDE\u897F\u70ED\u8282\u80FD\u73AF\u4FDD\u6280\u672F\u6709\u9650\u516C\u53F8
WO_2026056375_A1

Resumen de: WO2026056375A1

The present application discloses a nitride Ta3N5, and a preparation method therefor and a use thereof. The specific method comprises: subjecting a precursor I to high-temperature hydrolysis to prepare TaOx having a small size; and by utilizing the characteristics of TaOx being amorphous and having a small particle radius, performing short-duration nitridation on same to prepare Ta3N5. The formation of low-valence metal defects is effectively reduced, the charge separation efficiency is improved, and water-splitting activity is exhibited in a photocatalytic water splitting reaction. Compared with Ta3N5 prepared by a conventional method, the activity of the product of the present application is significantly improved.

REACTION CELL FOR AMMONIA ELECTROLYSIS REACTION AND ELECTROCHEMICAL HYDROGEN EXTRACTION SYSTEM COMPRISING SAME

NºPublicación:  WO2026059005A1 19/03/2026
Solicitante: 
POSTECH RES AND BUSINESS DEVELOPMENT FOUNDATION [KR]
\uD3EC\uD56D\uACF5\uACFC\uB300\uD559\uAD50 \uC0B0\uD559\uD611\uB825\uB2E8
WO_2026059005_A1

Resumen de: WO2026059005A1

A reaction cell for an ammonia electrolysis reaction and an electrochemical hydrogen extraction system including same are disclosed. Specifically, a reaction cell (10) for use in an ammonia electrolysis reaction is provided, the reaction cell (10) comprising: an anode (100) comprising a first metal; a cathode (200) comprising a second metal; and a separator (300) positioned between the anode and the cathode and comprising a cation exchange membrane (310). The present invention provides a hydrogen production technology based on anhydrous ammonia electrolysis through cation exchange, thereby enabling production of high-purity, high-pressure hydrogen with low energy consumption.

CXATALYTIC REACTOR FOR THE CONVERSION OF CARBON DIOXIDE AND HYDROGEN TO SYNGAS

NºPublicación:  US20260077326A1 19/03/2026
Solicitante: 
INFINIUM TECH LLC [US]
Infinium Technology, LLC
US_20260077326_A1

Resumen de: US20260077326A1

The present invention is generally directed to a reactor for the production of low-carbon syngas from captured carbon dioxide and renewable hydrogen. The hydrogen is generated from water using an electrolyzer powered by renewable electricity or from any other method of low-carbon hydrogen production. The improved catalytic reactor is energy efficient and robust when operating at temperatures up to 1800° F. Carbon dioxide conversion efficiencies are greater than 75% with carbon monoxide selectivity of greater than 98%. The catalytic reactor is constructed of materials that are physically and chemically robust up to 1800° F. As a result, these materials are not reactive with the mixture of hydrogen and carbon dioxide or the carbon monoxide and steam products. The reactor materials do not have catalytic activity or modify the physical and chemical composition of the conversion catalyst. Electrical resistive heating elements are integrated into the catalytic bed of the reactor so that the internal temperature decreases by no more than 100° F. from the entrance at any point within the reactor. The catalytic process exhibits a reduction in performance of less than 0.5% per 1000 operational hours.

CHEMICAL DECOMPOSITION USING CATALYTIC REACTOR HEATED BY MAGNETIC INDUCTION

Nº publicación: WO2026058041A1 19/03/2026

Solicitante:

TECHNIP ENERGIES FRANCE [FR]
TECHNIP ENERGIES FRANCE

WO_2026058041_A1

Resumen de: WO2026058041A1

A system can include a catalytic reactor heated using magnetic induction to perform a magnetically induced decomposition reaction. The catalytic reactor can include a housing coupled with a feedstock source to receive a flow of an inorganic compound in gaseous form that can flow through the catalytic reactor. The housing can include a metal-based catalyst selected to decompose the inorganic compound into one or more reaction products within a predefined temperature range. The metal- based catalyst can include a heating agent that can increase in temperature when exposed to a magnetic field. A coil can be positioned around the housing to provide the magnetic field to heat the metal-based catalyst using magnetic induction to be within the predefined temperature range

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