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976
resultados
Última actualización
04/03/2026 [07:11:00]
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.
Resumen de: US20260055516A1
A water electrolysis cell includes a membrane-electrode assembly, a frame body made of resin that is provided along a peripheral edge of the membrane-electrode assembly, and a first separator and a second separator that face each other through the membrane-electrode assembly and the frame body and are joined to each other by the frame body. An outer peripheral portion of the membrane-electrode assembly is extended to between a first face of the frame body and the first separator. A surface of the first face includes an antioxidant.
Resumen de: AU2024324493A1
A membrane-electrode assembly for a water electrolyser is provided. The membrane- electrode assembly comprises a polymer electrolyte membrane with a first face and a second face; an anode catalyst layer on the first face of the membrane, the anode catalyst layer comprising an oxygen evolution reaction catalyst; and a porous web of polymer fibres in contact with the anode catalyst layer, the polymer fibres comprising a conductive metal additive.
Resumen de: US20260048995A1
A method for manufacturing nano metal oxides and hydrogen includes the following steps: Step A, providing a first reactor, and placing a metal material, an alcohol compound, and a first catalyst in the first reactor and applying heating thereto for reacting to generate a metal alkoxide compound, while simultaneously generating a substantial amount of hydrogen; and Step B, providing a second reactor, and, after the metal material in the first reactor has fully reacted in Step A, transferring remaining solution in the first reactor into the second reactor, and adding a second catalyst and a controlled amount of water, and applying appropriate heating to generate nano metal oxide in powder form. As such, effects of significant reduction of production cost, enhancement of safety, widespread application of hydrogen fuel cells, extremely low carbon emissions, being defined as “green hydrogen”, and reduction of storage costs and risks can be achieved.
Resumen de: KR20240154110A
The present invention relates to a method for preparing a complex metal catalyst in the form of a tri-metal of ruthenium, yttrium, and potassium by using a thermally transformed delta-alumina support and to a method for preparing hydrogen through an ammonia cracking reaction using the same. An ammonia cracking catalyst according to the present invention adjusts the ratio of ruthenium/potassium + yttrium, along with a thermally transformed alumina support in a specific phase, even when using a low content of ruthenium metal, minimizes the contents of chlorine and nitrogen compounds, which are impurities in the catalyst, and localizes active metals in the catalyst, thereby achieving a very high ammonia conversion rate and hydrogen production efficiency even at low temperatures, compared with a catalyst having the same content of the ruthenium metal.
Resumen de: CN120857975A
The invention discloses a catalyst for ammonia dehydrogenation, a preparation method thereof and a method for preparing hydrogen by using the catalyst. The disclosed catalyst for ammonia dehydrogenation comprises a clay, and an alkali metal and ruthenium impregnated in the clay.
Resumen de: DE102025110831A1
Eine Wasserelektrolysezelle beinhaltet eine Membran-Elektroden-Anordnung, einen Rahmenkörper aus Harz, der entlang einer Umfangskante der Membran-Elektroden-Anordnung bereitgestellt ist, und einen ersten Separator und einen zweiten Separator, die einander durch die Membran-Elektroden-Anordnung und den Rahmenkörper gegenüberliegen und durch den Rahmenkörper miteinander verbunden sind. Ein äußerer Umfangsabschnitt der Membran-Elektroden-Anordnung erstreckt sich bis zwischen einer ersten Fläche des Rahmenkörpers und den ersten Separator. Eine Oberfläche der ersten Fläche beinhaltet ein Antioxidationsmittel.
Resumen de: AU2024327448A1
The present invention relates generally to the production of a desalinated, filtrated or other way treated water simultaneously with generation of renewal energy source, in particular hydrogen, using osmotic and/or gauge pressure driven filtration processes and systems. The co-generation of hydrogen 11 from water 8 produced during pressure driven water desalination/filtration processes, such as reverse osmosis, forward osmosis, pressure retarded osmosis or ultrafiltration. A small part of feed, raw saline solution and/or permeate involved in a desalination/filtration processes is subjected to electrolysis thereby splitting the water to produce hydrogen. This is achieved by the provision of novel RO type semi- permeable membranes and UF type membrane that incorporate electrodes 9, 10 within the membrane to allow splitting of the water via electrolysis.
Resumen de: US20260055526A1
There are provided system for preparing lithium hydroxide from an aqueous composition comprising a lithium compound and use of the system thereof to prepare lithium hydroxide, the system comprising an electrochemical cell, a pH probe and at least one inlet for receiving acid or base for maintaining pH. For example, the lithium compound can be lithium sulphate and the aqueous composition can be at least substantially maintained at a pH having a value of about 2 to about 4.
Resumen de: WO2026040290A1
A hydrogen evolution electrocatalyst, a preparation method therefor, and the use thereof. The hydrogen evolution electrocatalyst comprises a nickel foam substrate, a Ni3S2 nanosheet layer and a graphdiyne coating layer; at least part of the outer surface of the nickel foam substrate is provided with the Ni3S2 nanosheet layer; nickel atoms in the Ni3S2 nanosheet layer come from the nickel foam substrate; at least part of the outer surface of the Ni3S2 nanosheet layer is provided with the graphdiyne coating layer. The hydrogen evolution electrocatalyst has the characteristic of high catalytic activity.
Resumen de: US20260054247A1
The invention relates to a device, stacked plate reactor and to a method for investigating chemical processes to be carried out simultaneously or almost at the same time on a large number of functional element variations of the process parameters.
Resumen de: US20260055523A1
The technology generally concerns novel aerogels of mixed metal oxides and uses thereof as electrocatalysts.
Resumen de: US20260055522A1
Provided herein is a hydrogen gas production assembly includes a hydrogen gas production device, a container including an aqueous electrolyte solution, a storage container for storing produced hydrogen gas an input providing the aqueous electrolyte solution from the container to the hydrogen gas production device and an output for transferring produced hydrogen gas from the hydrogen gas production device to the storage container.
Resumen de: US20260055519A1
An electrolysis apparatus operation system includes an electrolysis apparatus, a control unit, a target state-of-health value input unit, and a control parameter calculating unit. The electrolysis apparatus has a plurality of electrolytic stacks in which a plurality of electrolytic cells that produce hydrogen by electrolyzing water are stacked. The control unit controls a controlled subject based on a control parameter that affects state-of-health of the controlled subject. The target state-of-health value input unit allows a system user to input a target state-of-health value that is a target value for state-of-health. The control parameter calculating unit calculates a control parameter of the controlled subject based on the target state-of-health value. The controlled subject is the electrolysis apparatus.
Resumen de: US20260055518A1
Herein discussed is a method of producing hydrogen comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a membrane between the anode and the cathode, wherein the membrane is both electronically conducting and ionically conducting; (b) introducing a first stream to the anode, wherein the first stream comprises ammonia; (c) introducing an oxidant to the anode; and (d) introducing a second stream to the cathode, wherein the second stream comprises water and provides a reducing environment for the cathode; wherein hydrogen is generated from water electrochemically; wherein the first stream and the second stream are separated by the membrane; and wherein the oxidant and the second stream are separated by the membrane.
Resumen de: US20260055524A1
Low-cost and earth abundant, Ni1-xMox alloy nanocrystals, with sizes ranging from 18-43 nm and varying Mo composition (0.0-11.4%), were produced by a colloidal chemistry method for alkaline HER reactions. For a water splitting current density of −10 mA/cm2, these alloys demonstrate over-potentials of −62 to −177 mV, which are comparable to commercial Pt-based electrocatalysts (−68 to −129 mV). The cubic Ni0.934Mo0.066 alloy nanocrystals exhibit the highest activity as alkaline HER electrocatalysts, outperforming commercial Pt/C (20 wt %) catalyst.
Resumen de: US20260055517A1
Microorganisms and bioprocesses are provided that convert gaseous C1 containing substrates, such as syngas, producer gas, and renewable H2 combined with CO2, into nutritional and other useful bioproducts.
Resumen de: US20260055516A1
A water electrolysis cell includes a membrane-electrode assembly, a frame body made of resin that is provided along a peripheral edge of the membrane-electrode assembly, and a first separator and a second separator that face each other through the membrane-electrode assembly and the frame body and are joined to each other by the frame body. An outer peripheral portion of the membrane-electrode assembly is extended to between a first face of the frame body and the first separator. A surface of the first face includes an antioxidant.
Resumen de: US20260054981A1
A method for hydrogen production may comprise: feeding a steam stream and a natural gas stream to a methane reforming unit to produce a gray hydrogen gas and CO2 stream; feeding the gray hydrogen and CO2 stream to a CO2 capture unit to produce blue hydrogen; feeding a water stream and electricity to an electrolyzer unit to produce a green hydrogen gas and oxygen; and collecting the blue hydrogen from the CO2 capture unit and the green hydrogen from the electrolyzer unit. A hydrogen production system may comprise: a methane reforming unit; a CO2 capture unit; and an electrolyzer.
Resumen de: AU2026200812A1
22418031_1 (GHMatters) P121123.AU.1 The present application relates to water electrolyzers, including water electrolyzers incorporating anion exchange membranes. The present applications also 5 relates to materials incorporated into water electrolyzers and approaches for manufacturing water electrolyzers, as well as methods of using water electrolyzers. eb e b
Resumen de: DE102025133002A1
Ein Elektrolysevorrichtungsbetriebssystem beinhaltet eine Elektrolysevorrichtung, eine Steuereinheit, eine Zielgesundheitszustandswerteingabeeinheit und eine Steuerparameterberechnungseinheit. Die Elektrolysevorrichtung weist eine Vielzahl von Elektrolyse-Stacks auf, in denen eine Vielzahl von Elektrolysezellen, die Wasserstoff durch Elektrolyse von Wasser erzeugen, gestapelt sind. Die Steuereinheit steuert ein gesteuertes Objekt basierend auf einem Steuerparameter, der den Gesundheitszustand des gesteuerten Objekts beeinflusst. Die Zielgesundheitszustandswerteingabeeinheit ermöglicht es einem Systembenutzer, einen Zielgesundheitszustandswert einzugeben, der ein Zielwert für den Gesundheitszustand ist. Die Steuerparameterberechnungseinheit berechnet einen Steuerparameter des gesteuerten Objekts basierend auf dem Zielgesundheitszustandswert. Das gesteuerte Objekt ist die Elektrolysevorrichtung.
Resumen de: US20260028730A1
Conventional control schemes for electrolyzers focus on maximizing electrical efficiency, which describes the relationship between the electrical energy consumed and the gas produced by the electrolyzer. However, the cost associated with high electrical efficiency may be unnecessarily expensive. In one embodiment presented herein, a model is used to determine the cost (or profit) associated with a gas produced by the electrolyzer at each of a plurality of operating conditions. The control system can select the operating condition to use based on which operating condition is associated with the lowest cost (or highest profit), even though that operating condition may not be associated with the highest electrical efficiency.
Resumen de: WO2024165389A1
The present invention relates to a pyrogenic process for manufacturing metal oxides or metalloid oxides wherein a metal precursor and/or a metalloid precursor is introduced into a flame formed by burning a gas mixture comprising oxygen and hydrogen, wherein at least a part of the hydrogen has been obtained from electrolysis of water or an aqueous solution, using electrical energy, at least a part of which has been obtained from a renewable energy source, and wherein at least a part of the thermal energy of the flame is transferred to a first heat transmission medium by means of at least one exchanger, thereby heating the first heat transmission medium to a maximal temperature in the range between 80 and 150 °C.
Resumen de: CN120835863A
A process for catalytic cracking of ammonia, the process comprising: supplying an ammonia feed gas to one or more heated catalyst-containing reaction vessels disposed within an ammonia cracking reactor; and cracking ammonia in the ammonia feed gas in the one or more catalyst-containing reaction vessels to produce a hydrogen-containing stream wherein the reaction vessel or each of the reaction vessels has a wall comprised of at least a first alloy and a second alloy wherein the first alloy is more resistant to nitriding than the second alloy, and the second alloy provides mechanical support for the first alloy, and wherein at least a portion of the wall adjacent the catalyst is comprised of the first alloy.
Nº publicación: EP4698696A1 25/02/2026
Solicitante:
JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD [GB]
Johnson Matthey Hydrogen Technologies Limited
Resumen de: WO2024218486A1
Oxygen evolution catalyst materials are provided with a pyrochlore-type structure and with (i) calcium and / or sodium as A-site elements of the pyrochlore-type structure; (ii) iridium and / or ruthenium as first B-site elements of the pyrochlore-type structure; (iii) niobium and / or tantalum as second B-site elements of the pyrochlore-type structure; and (iv) a molar ratio of A-site elements: first and second B-site elements is in the range of and including 0.8: 1 to 1:1.
BOPI
Sede Electrónica
