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Hidrógeno electrolítico

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SEMICONDUCTOR CATALYST, CATALYST ELECTRODE, METHOD FOR PRODUCING REDUCED PRODUCT, AND DEVICE FOR PRODUCING REDUCED PRODUCT

NºPublicación:  EP4699693A1 25/02/2026
Solicitante: 
DAICEL CORP [JP]
UNIV NAT CORP KANAZAWA [JP]
Daicel Corporation,
National University Corporation Kanazawa University
EP_4699693_A1

Resumen de: EP4699693A1

A semiconductor catalyst is provided, which exhibits an effect of accelerating a reduction reaction by visible light irradiation and is excellent in durability. The semiconductor catalyst of the present disclosure includes thin film containing nitrogen-containing diamond particles in a plane direction and a height direction. The semiconductor catalyst can be produced by, for example, fixing, on a substrate having a positive or negative charge, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the nitrogen-containing diamond particles being opposite to that of the substrate, and laminating, on the fixed nitrogen-containing diamond particles, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the laminated nitrogen-containing diamond particles being opposite to that of the fixed nitrogen-containing diamond particles. The step of laminating is performed at least once after the step of fixing.

A METHOD FOR PRODUCING GREEN HYDROGEN BY ELECTROLYSIS IN A HYBRID POWER PLANT

NºPublicación:  EP4699201A1 25/02/2026
Solicitante: 
CWP H1 ENERGY PTE LTD [SG]
SCHUMACHER GUIDO [DE]
CWP H1 Energy Pte Ltd,
Schumacher, Guido
DE_102023109764_PA

Resumen de: WO2024217840A1

A method for producing green hydrogen by electrolysis in a hybrid power plant (10), which comprises at least: - a wind turbine (11 ) with a rotor (11.1), a drive-train and a generator; multiple photovoltaic modules (12), - an electrolysis unit (15) for producing hydrogen by electrical power generated by the wind turbine (11) and/or the photovoltaic modules (12), an internal electrical power grid interconnecting the generator, the photovoltaic modules (12) and the electrolysis unit (15) within the power plant (10) and - a control unit (16); wherein a) electrical energy is generated by using the photovoltaic modules (12) and/or wind turbines (11 ); b) cloud coverage and/or solar radiation is measured by at least one weather sensor (14) which is located in a windward position remote of the power plant (10) and which is connected to the control unit (16) via a data link; According to a first aspect of the invention the wind turbine (11) is used as kinetic energy storage and according to another aspect of the invention the wind turbine (11) is used as an energy absorber by increasing inertia of the rotor (11.1).

PROCESS FOR AMMONIA SYNTHESIS USING GREEN HYDROGEN AND METHOD FOR REVAMPING AN AMMONIA PLANT

NºPublicación:  EP4698485A1 25/02/2026
Solicitante: 
CASALE SA [CH]
CASALE SA
CN_121175264_PA

Resumen de: AU2024257970A1

Process for synthesis of ammonia wherein: ammonia make-up gas (7) containing hydrogen and nitrogen is reacted in an ammonia converter (15) under ammonia forming conditions thus obtaining an ammonia-containing effluent (8); a first hydrogen portion contained in the ammonia make-up gas (7) is produced by reforming a hydrocarbon source (1) in a reforming process (100); a second hydrogen portion (19) contained in the ammonia make-up gas (7) is produced separately from said reforming process (100), by using at least a renewable energy source (SE, WE); a part of said hydrogen (19) produced in step (c) is stored in a hydrogen storage (103); hydrogen (20) from said hydrogen storage (103) is used to fully or partially replace said second hydrogen portion (19) when said renewable energy source (SE, WE) is fully or partially unavailable. Said process comprising the steps of: assessing an expected flow rate of the hydrogen (19) produced in step (c); adjusting a flow rate of the hydrocarbon source (1) so that a flow rate of the first hydrogen portion in said ammonia make- up gas (7) is in a desired ratio with respect to said expected flow rate; detecting an actual amount, e.g., a filling level, of said hydrogen in said hydrogen storage (103); detecting an actual flow rate of hydrogen produced using the renewable energy source (SE, WE), and adjusting a flow rate of the hydrogen (20) from said hydrogen storage (103) depending on said actual amount detected in said hydrogen storage (103) and

CONTAMINATION MITIGATION SYSTEM FOR USE IN AN ELECTROLYSIS SYSTEM

NºPublicación:  EP4700154A1 25/02/2026
Solicitante: 
NEW HYDROGEN IP LLC [US]
New Hydrogen IP, LLC
EP_4700154_PA

Resumen de: EP4700154A1

An electrolysis system includes an electrolyzer stack and a contamination mitigation system. The electrolyzer stack includes an injection port fluidly connected with a cathode compartment of the electrolyzer stack. The contamination mitigation system is configured to remove ions from the electrolyzer stack to mitigate ion contamination in the electrolyzer stack. The contamination mitigation system includes a storage tank including formic acid therein and an injection line fluidly coupled between the storage tank and the injection port. The injection line is configured to direct the formic acid from the storage tank to the injection port for injection into the cathode compartment of the electrolyzer stack.

水素の生成方法

NºPublicación:  JP2026506737A 25/02/2026
Solicitante: 
ハイドロジェネレイトリミテッド
JP_2026506737_PA

Resumen de: CN120897885A

A method for reacting aluminum with water, the method comprising the steps of: adding aluminum metal to an aqueous solution comprising potassium hydroxide at a concentration between 0.1 M and 0.4 M and a surfactant; stirring the mixture of the previous step; and collecting the generated hydrogen. A composition for use in such a method for reacting aluminum with water, the composition comprising potassium hydroxide and a surfactant.

SYSTEMS AND METHODS FOR WATER ELECTROLYSIS WITH ELECTRODES HAVING NICKEL-COBALT-PHOSPHOROUS-BASED COMPOUNDS

NºPublicación:  EP4700159A1 25/02/2026
Solicitante: 
HONEYWELL INT INC [US]
Honeywell International Inc
EP_4700159_PA

Resumen de: EP4700159A1

Systems and methods are provided for water electrolysis. The system includes an electrolyte material configured for the exchange of anions, a first electrode including a nickel-cobalt-phosphorus-based compound, and a second electrode, wherein the first electrode and the second electrode are configured to exchange the anions through the electrolyte material.

固体氧化物电池堆紧固装置以及使用该固体氧化物电池堆紧固装置的固体氧化物反应装置

NºPublicación:  CN121569379A 24/02/2026
Solicitante: 
三星电机株式会社
CN_121569379_PA

Resumen de: WO2025095296A1

A solid oxide cell stack fastening apparatus, in which downward pressure applied to the solid oxide cell stack is uniform throughout, includes a housing which accommodates a solid oxide cell stack and includes a first coupling part on one side thereof, and a first block which includes a second coupling part and an elastic member in contact with the solid oxide cell stack. The first coupling part and the second coupling part each have screw threads coupled to each other.

膜电极组件及其制造方法

NºPublicación:  CN121569377A 24/02/2026
Solicitante: 
三星电机株式会社
CN_121569377_PA

Resumen de: WO2025105885A1

A membrane-electrode assembly includes a first catalyst electrode, a polymer electrolyte membrane covering a side surface and an upper surface of the first catalyst electrode, and a second catalyst electrode disposed on the polymer electrolyte membrane, in which at least a portion of a corner area in which the side surface and the upper surface of the first catalyst electrode are connected has a curved shape.

アンモニア分解触媒およびアンモニア分解方法

NºPublicación:  JP2026506259A 24/02/2026
Solicitante: 
エルジー・ケム・リミテッド
JP_2026506259_PA

Resumen de: US20260027556A1

A catalyst for decomposition of ammonia, and a method for decomposition of ammonia in which a decomposition reaction of ammonia is performed in the presence of the catalyst, the catalyst including a carrier, and catalytically active components supported on the carrier, where the catalytically active components include i) ruthenium (Ru) as first metal; ii) lanthanum (La) as second metal: and iii) one or more of aluminum (Al) and Cerium (Ce) as third metal, and the catalyst has a porosity of 25% or more. The catalyst exhibits very high ammonia conversion rates, has little pressure difference between the front end and back end of the reactor, has high catalyst strength, and catalyst layer temperature difference is very small.

電解セルとその陰イオン交換導電性中空糸チューブマトリックス

NºPublicación:  JP2026031459A 24/02/2026
Solicitante: 
▲けい▼豐▲緑▼能科技股▲分▼有限公司
JP_2026031459_PA

Resumen de: US20260043158A1

An electrolytic cell and an anion-exchange conductive hollow fiber tube matrix thereof are disclosed. The anion-exchange conductive hollow fiber tube matrix includes a plurality of conductive hollow fiber tubes arranged adjacent to each other in a matrix. The conductive hollow fiber tubes each have a diffusion surface and two opposite ends defined as an inlet and an outlet. An anode and a cathode of the electrolytic cell are disposed adjacent to the diffusion surface. Water in an electrolysis tank flows into the conductive hollow fiber tubes from the inlet, water molecules enter the cathode from the diffusion surface and decompose to produce hydrogen and hydroxide ions, the hydrogen is discharged from the cathode, the hydroxide ions return to the conductive hollow fiber tubes from the diffusion surface and then enter the anode from the diffusion surface to produce oxygen, the oxygen is discharged from a surface of the anode.

氢的制造方法

NºPublicación:  CN121568895A 24/02/2026
Solicitante: 
国立研究开发法人科学技术振兴机构
CN_121568895_PA

Resumen de: WO2025028396A1

A method for producing hydrogen is provided in which ammonia can be highly efficiently decomposed even with low power consumption to produce hydrogen. This method for producing hydrogen includes a step in which an ammonia decomposition catalyst including a titanium oxide represented by general formula (1) or a titanium oxynitride represented by general formula (2) is brought into contact with ammonia while being irradiated with microwaves at low output. General formula (1): ATiO3-x (A is at least one member selected from the group consisting of Ba and Sr, and x is a number represented by 0.1≤x≤2.0.) General formula (2): ATiO3-xNy (A is at least one member selected from the group consisting of Ba and Sr, x is a number represented by 0.1≤x≤2.0, and y is a number represented by 0.1≤y≤1.0.) 

Electrolyzer comprising electrodes with a three-dimensional ordered structure

NºPublicación:  PL449572A1 23/02/2026
Solicitante: 
SOLOPA WALDEMAR [PL]
SO\u0141OPA WALDEMAR
PL_449572_A1

Resumen de: PL449572A1

Przedmiotem zgłoszenia jest elektrolizer do elektrolizy wody, z elektrodami ulokowanymi poziomo, które to elektrody są w pionie poprzecinane kanałami, gdzie stosunek pola przekroju poprzecznego pojedynczego kanału do jego długości wynosi co najwyżej 0,3 i mikroporowatego separatora, między tymi elektrodami, charakteryzujący się tym, że wspomniane elektrody (1, 2) i separator (4) je oddzielający są wypukłe w stronę dna elektrolizera i elektroda górna (1) jest ulokowana w objętości, której dotną ścianę stanowi separator (4) i obie strony: górną i dolną tej elektrody, łączą kanały do cyrkulacji elektrolitu (7, 7a) i poniżej dolnej strony kraju separatora (4) są również wykonane otwory cyrkulacyjne (13, 13a), a elektroda dolna (2) jest ulokowana poniżej tych otworów.

光触媒セル及び水素ガス生成システム

NºPublicación:  JP2026030386A 20/02/2026
Solicitante: 
シャープ株式会社
JP_2026030386_PA

Resumen de: US20260043150A1

A photocatalytic cell of the disclosure is installed in an inclined manner at an angle of 5° or more and 45° or less with respect to a horizontal plane. The photocatalytic cell includes: a translucent member; an electrolytic solution; a photocatalytic sheet including photocatalytic particles; an injection port through which the electrolytic solution is injected into an inside of the photocatalytic cell; a discharge port through which the electrolytic solution is discharged to an outside of the photocatalytic cell; and an exhaust port through which gas inside the photocatalytic cell is discharged, at least a part of the photocatalytic sheet is immersed in the electrolytic solution, a position of the exhaust port is higher than a position of the injection port, a gap between a surface of the translucent member and a surface of the photocatalytic sheet is 5 mm or more and 50 mm or less in width, and the injection port and the discharge port allow the electrolytic solution to flow from an upper part toward a lower part in the gap between the translucent member and the photocatalytic sheet.

ELECTROLYSIS DEVICE AND METHOD WITH TURBINE COUPLED TO COMPRESSOR

NºPublicación:  WO2026037594A1 19/02/2026
Solicitante: 
BOSCH GMBH ROBERT [DE]
ROBERT BOSCH GMBH
WO_2026037594_PA

Resumen de: WO2026037594A1

The invention relates to an electrolysis device (10) having at least one electrolysis unit (12) for reducing a medium provided for the electrolysis, in particular water, an air supply line (20) for supplying air to the electrolysis unit (12), and an exhaust gas line (24) for discharging anode exhaust gases of the electrolysis unit (12). According to the invention, the air supply line (20) has a compressor (66) for increasing the pressure of the air, and the exhaust gas line (24) has a turbine (74) mechanically coupled to the compressor (66).

COMPOSITE SEPARATOR, AND PREPARATION METHOD THEREFOR AND USE THEREOF

NºPublicación:  AU2023460501A1 19/02/2026
Solicitante: 
XIAN HYDROGEN BASED CARBON ENERGY TECHNOLOGY CO LTD
XI'AN HYDROGEN BASED CARBON ENERGY TECHNOLOGY CO., LTD
AU_2023460501_PA

Resumen de: AU2023460501A1

A composite separator and a preparation method therefor. The composite separator comprises a main film and an anti-contamination layer, which is arranged on one or both surfaces of the main film, wherein the anti-contamination layer comprises a first polymer, a charge agent and/or an anti-fouling agent. The composite separator can be applied to alkaline water electrolysis for hydrogen production and other electrolysis industries, and the anti-contamination layer of the composite separator can effectively prevent impurity species, especially metal ions fallen from a cathode catalyst, from being attached to the surface, which causes the sheet resistance to increase, thereby increasing the electrolytic energy consumption.

Verfahren zum Betreiben einer elektrochemischen Anlage

NºPublicación:  DE102024207773A1 19/02/2026
Solicitante: 
BOSCH GMBH ROBERT [DE]
Robert Bosch Gesellschaft mit beschr\u00E4nkter Haftung
DE_102024207773_PA

Resumen de: DE102024207773A1

Verfahren zum Betreiben einer elektrochemischen Anlage, die mehrere elektrochemische Stacks (11; 12; 13; 21; 22; 23; 31; 32; 33) umfasst, die elektrisch und/oder hydraulisch zusammengeschaltet sind. Dabei werden folgende Schritte durchgeführt:- Erfassen wenigstens eines Zustandsparameters jedes Stacks (11; 12; 13; 21; 22; 23; 31; 32; 33),- Bestimmen eines Degradationsgrads jedes Stacks (11; 12; 13; 21; 22; 23; 31; 32; 33) unter Verwendung der erfassten Zustandsparameter,- Ausgeben einer Empfehlung zum Austausch wenigstens eines Stacks (11; 12; 13; 21; 22; 23; 31; 32; 33) abhängig vom Degradationsgrad des Stacks, wobei die Empfehlung einen Degradationsgrad-Bereich umfasst, den der neu einzubauende Stack (11; 12; 13; 21; 22; 23; 31; 32; 33) aufweisen soll, und einen Zeitpunkt, zu dem der Austausch erfolgen sollte.

METHOD FOR OPERATING AN ELECTROCHEMICAL SYSTEM

NºPublicación:  WO2026037726A1 19/02/2026
Solicitante: 
BOSCH GMBH ROBERT [DE]
ROBERT BOSCH GMBH
WO_2026037726_PA

Resumen de: WO2026037726A1

The invention relates to a method for operating an electrochemical system which comprises a plurality of electrochemical stacks (11; 12; 13; 21; 22; 23; 31; 32; 33) that are electrically and/or hydraulically interconnected. The following steps are carried out: - detecting at least one state parameter of each stack (11; 12; 13; 21; 22; 23; 31; 32; 33), - determining a degree of degradation of each stack (11; 12; 13; 21; 22; 23; 31; 32; 33) using the detected state parameters, - outputting a recommendation for replacing at least one stack (11; 12; 13; 21; 22; 23; 31; 32; 33) depending on the degree of degradation of the stack, wherein the recommendation comprises a degree-of-degradation range that the new stack (11; 12; 13; 21; 22; 23; 31; 32; 33) to be installed should have and a point in time at which the replacement should take place.

METHOD FOR PRODUCING HYDROGEN FROM A SOLUTION OF A HIGH CONCENTRATION OF HYDRONIUM IONS

NºPublicación:  WO2026039480A1 19/02/2026
Solicitante: 
HORNADAY DEV LLC [US]
HORNADAY DEVELOPMENT, LLC
WO_2026039480_PA

Resumen de: WO2026039480A1

A method for producing hydrogen including: performing electrolysis of a hydronium solution, the hydronium solution including: a molecule including hydrogen and oxygen; hydronium ions; hydroxide anions (OH-); a pH between -1.0 and 0.5; and a hydroxide anion OH- concentration of about 1% or less, wherein the hydronium solution is configured to maintain the same pH and the same hydroxide anion OH- concentration for at least six years. A method for producing hydrogen including: performing electrolysis of a hydronium solution, the hydronium solution including: a molecule including hydrogen and oxygen; hydronium ions; hydroxide anions (OH-); a pH between -1.0 and 0.5; and a hydroxide anion OH- concentration of about 1% or less, wherein the hydronium solution is configured to maintain the same pH and the same hydroxide anion OH-

ANION CONDUCTIVE FILM, METHOD FOR PRODUCING ANION CONDUCTIVE FILM, MEMBRANE ELECTRODE ASSEMBLY, HYDROGEN PRODUCTION METHOD, AND HYDROGEN PRODUCTION SYSTEM

NºPublicación:  WO2026038553A1 19/02/2026
Solicitante: 
FUJIFILM CORP [JP]
\u5BCC\u58EB\u30D5\u30A4\u30EB\u30E0\u682A\u5F0F\u4F1A\u793E
WO_2026038553_PA

Resumen de: WO2026038553A1

The present invention pertains to: an anion conductive film which includes a porous base material and an anion conductive polymer that is disposed, in addition to being provided inside of pores of the porous base material, on 70% or more of the area of at least one surface of the porous base material, and in which the anion conductive polymer has a constituent component (I) derived from a polyfunctional polymerizable monomer having a total of 2 or more of at least one atom selected from an oxygen atom, a sulfur atom, and a nitrogen atom at a structural part other than a polymerizable group, and the proportion of the constituent component (I) among all constituent components of the polymer is 50 mol% or more; a method for producing the anion conductive film; a membrane electrode assembly; a hydrogen production method; and a hydrogen production system.

PREPARATION AND USE OF NICKEL-FOAM-SUPPORTED LAYERED COBALT TUNGSTEN OXIDE CATALYST FOR EFFICIENT WATER DECOMPOSITION

NºPublicación:  WO2026037094A1 19/02/2026
Solicitante: 
HAINAN NORMAL UNIV [CN]
\u6D77\u5357\u5E08\u8303\u5927\u5B66
WO_2026037094_PA

Resumen de: WO2026037094A1

The present invention belongs to the technical field of electrochemical catalysis. Disclosed are the preparation and use of a nickel-foam-supported layered cobalt tungsten oxide catalyst for efficient water decomposition. In the present invention, nickel foam (NF) is selected as a substrate, on which two cobalt oxides having different morphologies successively grow by means of electrochemical deposition, wherein ComCo3O4 serves as a first layer and can tightly wrap around the NF, thereby preventing the NF from anodic corrosion and dissolution in a harsh acidic medium; AcCo3O4 serves as a second layer, and nanosheet-shaped Co3O4 has good OER activity itself; in addition, the large specific surface area also provides more growth sites for a tungsten oxide; and finally, the tungsten oxide is electrically deposited on the AcCo3O4. WxOy/AcCo3O4/ComCo3O4/NF prepared by using the above method has a low overpotential and good stability.

PHOTOCATALYTIC CARTRIDGE

NºPublicación:  WO2026036170A1 19/02/2026
Solicitante: 
SPARC TECH LIMITED [AU]
SPARC TECHNOLOGIES LIMITED
WO_2026036170_PA

Resumen de: WO2026036170A1

This disclosure relates to a replaceable photocatalytic cartridge for use in a reactor, and a method for producing the replaceable photocatalytic cartridge. The replaceable photocatalytic cartridge being suitable for use within a reactor that photocatalytically splits water, such as a PWS reactor. In one embodiment, the photocatalytic cartridge comprises a container that contains a substrate that is coated with photocatalytic particles, wherein, in use, the photocatalytic cartridge is configured to be removably inserted into a receiving portion of the reactor such that the coated substrate is adapted to participate in a photocatalytic reaction with H2O and solar radiation within the reactor.

PHOTOELECTRIC CELL WITH SILICON CARBIDE ELECTRODE AND PRODUCTION METHOD FOR SAME

NºPublicación:  US20260049404A1 19/02/2026
Solicitante: 
THE YELLOW SIC HOLDING GMBH [DE]
The Yellow SiC Holding GmbH
US_20260049404_PA

Resumen de: US20260049404A1

Disclosed are a photoelectric cell with a silicon carbide electrode (4) for photocatalytic production of hydrogen, and a manufacturing method therefor. The cell has on one side of the silicon carbide electrode (4) a window (2) the incidence of light (5) and on the other side of the silicon carbide electrode (4) an aqueous electrolyte (10) and a counter electrode (6). On the side of the silicon carbide electrode (4) facing the window, the cell is electrolyte-free. The silicon carbide electrode (4) is preferably produced by coating a substrate (3) with silicon carbide (4).

CONTAMINATION MITIGATION SYSTEM FOR USE IN AN ELECTROLYSIS SYSTEM

NºPublicación:  US20260049408A1 19/02/2026
Solicitante: 
NEW HYDROGEN IP LLC [US]
NEW HYDROGEN IP, LLC
US_20260049408_PA

Resumen de: US20260049408A1

An electrolysis system includes an electrolyzer stack and a contamination mitigation system. The electrolyzer stack includes an injection port fluidly connected with a cathode compartment of the electrolyzer stack. The contamination mitigation system is configured to remove ions from the electrolyzer stack to mitigate ion contamination in the electrolyzer stack. The contamination mitigation system includes a storage tank including formic acid therein and an injection line fluidly coupled between the storage tank and the injection port. The injection line is configured to direct the formic acid from the storage tank to the injection port for injection into the cathode compartment of the electrolyzer stack.

ELECTROLYZER CELL SYSTEMS AND METHOD OF OPERATING THEREOF BY WATER COOLING OF SYSTEM EXHAUST

NºPublicación:  US20260049405A1 19/02/2026
Solicitante: 
BLOOM ENERGY CORP [US]
BLOOM ENERGY CORPORATION
US_20260049405_PA

Resumen de: US20260049405A1

A method of operating an electrolyzer cell system includes providing a steam inlet stream to a stack of electrolyzer cells, generating a main product stream containing hydrogen and steam, and an oxygen exhaust stream in the stack, and providing liquid water into the main product stream to cool the main product stream.

Carbon Dioxide Electrolysis Device and Method

Nº publicación: US20260049407A1 19/02/2026

Solicitante:

LG CHEM LTD [KR]
LG Chem, Ltd

US_20260049407_A1

Resumen de: US20260049407A1

Provided is a carbon dioxide electrolysis device including: a carbon dioxide electrolysis cell including an anode, a cathode, an electrolyte, and a membrane disposed between the anode and the cathode. The carbon dioxide electrolysis device further includes; a supply line configured to supply gaseous carbon dioxide and water vapor to the cathode; and a discharge line configured to discharge, into the outside of the carbon dioxide electrolysis cell, the water vapor and a product produced by the electrolysis reaction of the gaseous carbon dioxide inside the carbon dioxide electrolysis cell, wherein the discharge line includes a condensation part configured to condense the water vapor discharged through the discharge line.

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