Resumen de: WO2025002860A1
The present invention relates to a catalyst powder suitable for production of an anode catalyst for proton exchange membrane water electrolysis, having catalyst particles (1) having a core (2) of a semiconductive material, and a catalyst shell layer (3) that fully covers the core and comprises iridium and/or iridium oxide.
Resumen de: EP4737002A1
Disclosed are an ammonia partial oxidation-based hydrogen extraction catalyst, a manufacturing method therefor, and a hydrogen extraction method using the catalyst. The ammonia partial oxidation-based hydrogen extraction catalyst comprises: a support; and ruthenium (Ru) loaded on the support. The hydrogen extraction method using the catalyst allows the temperature inside a reactor to be maintained at a high temperature without an external heat source and has a long reaction time, thereby solving the existing problem of thermal efficiency reduction and enabling a high ammonia conversion rate to be obtained.
Resumen de: EP4737615A1
The present invention relates to a separation membrane having an anode catalyst layer coated on one surface of a porous substrate, and more particularly, to a separation membrane which enables ions to move smoothly through the pores of a porous substrate, and has a low overvoltage by coating the anode catalyst layer on one surface of the separation membrane, and an electrochemical cell including the same.
Resumen de: WO2025002651A1
The invention relates to an energy supply device (1) for an electrolyzer (10). The energy supply device (1) has an input circuit (2) and a transformer (3). The input circuit (2) is designed to be connected to an energy source (4) or an energy supply network. In order to improve the energy supply device (1), the input circuit (2) is additionally designed to provide at least two different electric potentials at contacts (5), and the converter (3) is electrically connected to at least one of the contacts (5) on the input side by means of a respective conductor (6). The energy supply device (1) is designed to change the contact (5) connected to the converter (3) by reconnecting at least one conductor (6) of the energy supply device (1). The invention additionally relates to an electrolysis device comprising such an energy supply device (1) and an electrolyzer (10) and to a method for controlling such an energy supply device (1) or such an electrolysis device (100), wherein the converter (3) is operated using a voltage level produced by the input circuit, and at least one conductor (6) of the energy supply device (1) is manually reconnected from a first contact of the contacts (5) to a second contact of the contacts (5) in order to change the voltage level.
Resumen de: EP4737431A2
0001 The invention relates to a reactor system for carrying out an endothermic reaction of a feed gas, comprising: - a structured catalyst arranged for catalyzing said endothermic reaction of a feed gas, said structured catalyst comprising a macroscopic structure of electrically conductive material, said macroscopic structure supporting a ceramic coating, wherein said ceramic coating supports a catalytically active material; - a pressure shell housing said structured catalyst; - heat insulation layer between said structured catalyst and said pressure shell; - at least two conductors electrically connected to said electrically conductive material and to an electrical power supply placed outside said pressure shell, wherein said electrical power supply is dimensioned to heat at least part of said structured catalyst to a temperature of at least 200°C by passing an electrical current through said electrically conductive material. The invention also relates to a process for performing an endothermic reaction of a feed gas.
Resumen de: EP4737616A1
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.
Resumen de: JP2025116859A
To provide a method capable of producing a sheet-shaped titanium porous body at high efficiency and with good yield.SOLUTION: This producing method comprises: placing a mother sheet containing a titanium porous body on a jig, which includes at least one stage having at least one through hole, a frame surrounding the at least one stage and distanced from the at least one stage, and at least one coupling part connecting the at least one stage and the frame to each other, in such a way to cover the at least one through hole and a gap between the at least one stage and the frame; sucking the mother sheet onto the jig; and cutting the mother sheet by scanning laser light emitted from a fiber laser over the mother sheet along the gap.SELECTED DRAWING: Figure 6B
Resumen de: CN119956404A
The invention provides an anode for a PEM water electrolyser and a preparation method thereof, the anode comprises a stainless steel substrate and a layered oxide structure generated on the surface of the stainless steel substrate in situ, and the layered oxide structure comprises crystal manganese oxide and amorphous iron-containing manganese oxide. The layered oxide structure on the surface of the anode can keep long-time water electrolysis catalytic activity and stability under the acidic condition, and the problems of corrosion and stability of autocatalytic and non-noble metal electrodes under the acidic environment are solved through proper surface structure component selection. According to the anode, the cost of hydrogen production based on a noble metal catalyst at present is remarkably reduced, and the problem of high cost of PEM large-scale electrolytic hydrogen production is expected to be solved.
Resumen de: CN116219478A
The invention belongs to the technical field of water electrolysis hydrogen production, and particularly discloses a water electrolysis oxygen production catalyst, an electrode plate and application of the water electrolysis oxygen production catalyst, the water electrolysis oxygen production catalyst and the electrode plate, the catalyst is a nickel-iron-based multi-component alloy and has an ordered nanowire or nanochain microstructure, the diameter of a nanowire/chain is 0.1-2.0 microns, and the length of the nanowire/chain is 0.1-200 microns; the catalyst comprises the following components in percentage by mass: 85%-95% of Ni, 4.98%-14.98% of Fe and the balance of noble metal or transition metal, the electrode plate comprises a base material, and the catalyst is loaded on the base material; the surface of the electrode plate is yellow green, and the electrode plate has uniformly distributed latticed appearance, and has the advantages of high catalytic activity, low energy consumption and the like when being applied to hydrogen production by alkaline electrolysis of water.
Resumen de: WO2025071231A1
The present invention relates to a catalyst composite and a polymer electrolyte membrane including same, wherein the catalyst composite is manufactured by complexing platinum and a metal having a higher ionization tendency than platinum with a functional support. When applied to a polymer electrolyte membrane, the catalyst composite effectively reduces the gas permeating from the counter electrode.
Resumen de: WO2025127526A1
According to exemplary embodiments of the present invention, a hydrogen production system is provided. The present invention comprises: a hydrogen generation unit configured to receive reduced iron from a reduced iron generation unit configured to generate reduced iron by reducing powdered iron ore in a reducing gas atmosphere, and to generate hydrogen from ammonia by bringing the reduced iron into contact with the ammonia; and a regeneration unit configured to receive the reduced iron from the hydrogen generation unit and to regenerate the reduced iron by reducing the reduced iron in a hydrogen gas atmosphere. According to other exemplary embodiments of the present invention, a method for producing hydrogen is provided.
Resumen de: WO2024175690A1
In a gas pressure balance method in an electrolyser system a predefined pressure difference between pressures in an oxygen gas separation tank and a hydrogen gas separation tank is maintained by controlled release of gases through an oxygen back pressure valve and a hydrogen back pressure valve. in a first step, for each of the oxygen back pressure valves and the hydrogen back pressure valves, a predefined, calibrated pilot gas pressure is generated and in a second step, the predefined, calibrated pilot gas pressures are forwarded to the respective back pressure valves and in a third step, hydrogen and oxygen gasses are released whenever the gas pressures in the hydrogen and oxygen separation tanks exceeds the predefined, calibrated pilot pressure in the respective pilot gas streams.
Resumen de: WO2024161039A1
Feedwater preparation system in a water electrolyser adapted to produce hydrogen and oxygen in one or more pressurised electrolyser stacks (2) using alkaline water and comprising a product gas conditioning system that has a safety valve out-blow material stream pipe (11) which is connected to a feedwater vessel (9), and/or has a depressurisation stream pipe (31) from a gas cleaning vessel which is connected to the feedwater vessel (9).
Resumen de: WO2025033908A1
The present invention relates to an oxygen evolution reaction (OER) oxide catalyst for anion exchange membrane (AEM) water electrolysis, doped with various metal atoms by using a co-precipitation method, and to a method for preparing same.
Resumen de: US20260116748A1
Method and system for producing a hydrogen product from ammonia, comprising: optionally at least one pre-cracking reactor, such as an adiabatic pre-cracking reactor, arranged to receive an ammonia feed stream, thereby producing a partly converted ammonia feed stream comprising ammonia, hydrogen and nitrogen; an ammonia cracking reactor such as an electrically heated reactor. The reactor is arranged to receive the partly converted ammonia feed stream or the ammonia feed stream for producing an effluent gas stream comprising hydrogen and nitrogen and optionally also unconverted ammonia; and a hydrogen recovery unit arranged to receive the effluent gas stream for producing the hydrogen product and an off-gas stream comprising hydrogen, nitrogen and optionally unconverted ammonia.
Resumen de: WO2026089996A1
Processes and apparatuses for controlling a temperature of a reactor. Oxygen and hydrogen are reacted in a reactor which contains a catalyst configured to catalyze a reaction between oxygen and hydrogen and produce an effluent comprising water. Water is removed from the effluent in a separation zone having a plurality of vessels containing an adsorbent configured to adsorb water and provide a purified product stream, the purified product stream comprises oxygen or hydrogen. An exotherm of the reactor is controlled by recycling a recycled stream which comprises a portion of the effluent stream or a portion of the purified product stream.
Resumen de: US20260117934A1
A pair of flat portions is provided on both sides of an outer wall surface of a storage container, respectively, in at least one of an up-down direction, a left-right direction, and a front-rear direction in an installed state of the storage container. A recess is formed at a portion of at least one of the pair of flat portions, and is formed so as to be recessed inward with respect to another portion of the flat portion and to at least partially communicate with the outside of the flat portion in a direction along the flat portion. A relief valve is provided in the recess and is automatically opened in a case where a pressure inside a storage portion for storing a hydrogen carrier exceeds a predetermined value to release gas inside the storage portion to the outside.
Resumen de: WO2024257717A1
This method for stopping a gas production device is a method for electrolyzing an electrolytic alkali solution under pressurized conditions in which the electrolytic solutions that have flowed out of an anode chamber and a cathode chamber are circulated so as to flow again into the anode chamber and the cathode chamber, and comprises stopping the operation of the device through a procedure including given steps. This method makes it possible to prevent a gas composition from reaching an explosion limit.
Resumen de: US20260116746A1
0000 Methods and systems for hydrogen production from inert sodium salts are described herein. In an example method, steam is generated by a nuclear reactor power plant system. The steam is applied to sodium formate to facilitate one or more thermal and/or hydrothermal decomposition processes, thereby generating hydrogen. In the example method, sodium formate is generated by combining sodium hydroxide generated by an electrolysis process with sodium carbonate and/or sodium bicarbonate generated by a carbon capture process. Embodiments can be used to supply hydrogen storage facilities and/or for energy production.
Resumen de: US20260115682A1
In some embodiments, a reactor and/or related may generate pressurized hydrogen within an internal volume by combining water and a water reactive material. In some embodiments, the reactor may include a flexible porous membrane configured to contain water reactive material disposed in an internal volume. In some embodiments, the reactor may include a support configured to support a water reactive material in an internal volume.
Resumen de: AU2024379050A1
The invention provides a device for hydrogen production comprising a reaction chamber containing one or more catalysts disposed therein, a fuel gas inlet, and a hydrogen-rich gas outlet; a first reactant gas chamber having a first reactant gas inlet for conveying a first reactant gas and being in fluid communication with an exhaust; and a second reactant gas chamber having a second reactant gas inlet for conveying a second reactant gas; wherein the reaction chamber and the first reactant gas chamber share a first wall therebetween, the first wall comprising a thermally conductive substrate having a reaction chamber face and a first reactant gas chamber face, wherein the first reactant gas chamber face of the first wall has a reaction surface which is coated with a reactant gas decomposition catalyst; wherein the first reactant gas chamber further comprises a second wall opposite the first wall defining a volume therebetween, the second wall being shared between the first reactant gas chamber and the second reactant gas chamber; wherein the second wall comprises one or more apertures disposed in an aperture-containing area along a length and width of the second wall such that the second reactant gas chamber and the first reactant gas chamber are in fluid communication with one another, wherein the aperture-containing area has a first section, a second section, and a third section, the first section being a third of the aperture-containing area distal to the fuel gas inlet and
Resumen de: US20260117411A1
A process for producing a graphite-containing metal oxide electrode includes: a) providing an electrolysis cell having an electrode, a further electrode and an aqueous and/or non-aqueous carbonyl-and cyano-free solvent, b) introducing black matter and a proton source into the solvent present in the electrolysis cell, where the black matter includes graphite-supported precious metal-free metal oxides, and c) applying a voltage to the electrode and the further electrode, such that the precious metal-free metal oxides and graphite provided by means of the black matter are deposited on the electrode to produce a graphite-containing metal oxide coating on the electrode for formation of the graphite-containing metal oxide electrode. The graphite-containing metal oxide electrode is used for production of hydrogen and/or oxygen by (photo)electrochemical water splitting and to an electrolysis cell for production of hydrogen and oxygen by (photo)electrochemical water splitting.
Resumen de: WO2026088773A1
A thermal energy generation system (10) is provided with: a water electrolysis device (20); a methanation device (30) that generates methane and water by causing carbon dioxide to react with hydrogen generated by the water electrolysis device (20); a combustion device (40) that combusts the methane discharged from the methanation device (30) using a combustion gas containing oxygen discharged from the water electrolysis device (20); and a CO2 distribution unit (55) that distributes and supplies the carbon dioxide discharged from the combustion device (40) to the methanation device (30) and the combustion device (40), respectively. The methanation device (30) causes a methanation reaction to be performed using the carbon dioxide from the CO2 distribution unit (55). The combustion device (40) causes a combustion reaction to be performed by including the carbon dioxide from the CO2 distribution unit (55) in the combustion gas.
Resumen de: US20260116749A1
0000 A hydrogen production method includes the heating of a catalyst in a furnace under reducing conditions to a first temperature, exposing the catalyst to water at a second temperature, and forming oxygen and hydrogen by thermolysis of the water, where the catalyst may include a barium niobate-based perovskite structure having the chemical formula of Ba<1−x>(AE)
Nº publicación: US20260115696A1 30/04/2026
Solicitante:
UNIV SOUTH CAROLINA [US]
University of South Carolina
Resumen de: US20260115696A1
0000 A catalyst for ammonia decomposition having a support core whose surface is impregnated with a surface oxide wherein the surface oxide impregnated support core is coated with ruthenium. A method for making a catalyst for ammonia decomposition having a support core whose surface is impregnated with a surface oxide wherein the surface oxide impregnated support core is coated with ruthenium.