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881
resultados
Última actualización
10/11/2025 [06:59:00]
Resultados 175 a 200 de 881
Resumen de: US2025320612A1
The present disclosure relates to a method of operating a water electrolysis cell that can improve long-term durability even under high current density operating conditions.
Resumen de: US2025320419A1
Systems and methods for producing green hydrogen from a source material (e.g., biowaste) are contemplated. The source material is at least partially dehydrated to produce a dried intermediate and recovered water. The dried intermediate is pyrolyzed to produce syngas and a char. The recovered water is electrolyzed to produce oxygen and green hydrogen.
Resumen de: US2025320118A1
A method can include performing a series of reactions in a closed cycle, the series of reactions consisting of a hydrolysis reaction where a redox reagent is oxidized to a corresponding oxidized redox reagent with water contemporaneously with the production of hydrogen; and a reduction reaction where the oxidized redox reagent is reduced to the redox reagent using a sulfurous reactant contemporaneously with production of sulfur dioxide.
Resumen de: US2025320117A1
A method may provide a mechanical mill for reducing a size of particles; wherein the mechanical mill includes: a core for accelerating particles, the core including: a first disc and a second disc facing the first disc in an axial direction, wherein each of the first disc and the second disc includes a plurality of concentric rings and a plurality of concentric channels alternately interleaved with the plurality of concentric rings; and wherein the first disc, the second disc, or a combination thereof are rotated. A method may introduce water into the mechanical mill. A method may introduce soil particles into the mechanical mill. A method may activate the mechanical mill to accelerate the water and the soil particles. A method may thereby produce nanoparticles from the soil particles and producing hydrogen from a reaction between the nanoparticles and the water.
Resumen de: US2025319459A1
There is disclosed a method of constructing a layered double hydroxide (LDH) material comprising selected metal ions, and employing metallic vanadium carbide (V2C) for promoting conductive properties of the LDH material, wherein the layered LDH material is a trimetallic LDH material. The trimetallic LDH material comprises selected Ni2+, Co2+, and AL3+ metal ions with its cationic configuration for improving photocatalytic properties of the LDH material, wherein trimetallic nickel-cobalt-aluminium layered double hydroxide (NixCoyAlz LDH) and vanadium carbide MXene (V2C)-based composite is coupled with a graphitic carbon nitride (g-C3N4) nanosheet, to form a hybrid-junction photocatalyst. Also disclosed is a layered structure of vanadium carbide (V2C) MXenes, comprising trimetallic nickel-cobalt-aluminium layered double hydroxide (NixCoyAlz LDH) and vanadium carbide MXene (V2C) coupled with graphitic carbon nitride (g-C3N4), forming a NixCoyAlz LDH/g-C3N4 hybrid-junction photocatalyst.
Resumen de: US2025323304A1
An electrochemical cell stack includes at least two electrochemical cells that each contain a fuel electrode, an air electrode, and an electrolyte located between the fuel electrode and the air electrode, at least one interconnect located between the at least two electrochemical cells, and a contact layer that electrically connects the at least one interconnect and the fuel electrode of an adjacent one of the at least two electrochemical cells. The contact layer includes first wires that extend in a first direction, the first wires including thinner first wires and thicker first wires, the thicker first wires having a thickness that is larger than a thickness of the thinner first wires, and second wires that extend in a second direction different from the first direction.
Resumen de: US2025323299A1
The methane generation system according to the present disclosure includes a methane generation unit including an electrolysis device that electrolyzes water to obtain hydrogen and a methane reactor that obtains a fuel gas containing methane by a methanation reaction using the hydrogen; a reformer that reforms the fuel gas to obtain a reformed gas; a fuel cell that generates electricity by a reaction of obtaining a product gas from the reformed gas and an oxygen-containing gas; a recovery device that separates a recovery gas containing carbon dioxide from return fluid which is a pail of the product gas; and a circulation path through which the recovery gas is guided to the methane generation unit.
Resumen de: US2025323303A1
A method and system of generating electrical power or hydrogen from thermal energy is disclosed. The method includes separating, by a selectively permeable membrane, a first saline solution from a second saline solution, receiving, by the first saline solution and/or the second saline solution, thermal energy from a heat source, and mixing the first saline solution and the second saline solution in a controlled manner, capturing at least some salinity-gradient energy as electrical power as the salinity difference between the first saline solution and the second saline solution decreases. The method further includes transferring, by a heat pump, thermal energy from the first saline solution to the second saline solution, causing the salinity difference between the first saline solution and the second saline solution to increase. The method may include a process of membrane distillation, forward osmosis, evaporation, electrodialysis, and/or salt decomposition for further energy efficiency and power generation.
Resumen de: US2025320803A1
This disclosure describes systems and methods for using electrical stimulation of a rock formation (e.g., a subterranean formation, a subterranean reservoir) to improve, or otherwise enhance, the energy storage capabilities of the rock formation. Many existing rock formations are too impermeable to facilitate energy storage; however, the Inventors have recognized and appreciated that a “geobattery” may be constructed by using electrical stimulation to increase the permeability of a rock formation (e.g., a subterranean formation) such that water (or some other fluid) can be pumped into the rock formation, in particular, a reservoir within the rock formation, and converted into hydrogen to store the energy within the hydrogen.
Resumen de: US2025320615A1
A gas management system includes an anodic chamber, a cathodic chamber, and a membrane assembly configured to remove bubbles from an electrochemical cell to increase hydrogen generation of the electrochemical cell. The membrane assembly includes a first outer layer arranged between the cathodic chamber and the anodic chamber, a second outer layer arranged between the first outer layer and the cathodic chamber, and a spacer layer arranged between the first outer layer and the second outer layer.
Resumen de: US2025320617A1
A water electrolysis cell has: an oxygen generating electrode containing an oxygen generating catalyst; a hydrogen generating electrode containing a hydrogen generating catalyst; and a membrane that separates the oxygen generating electrode and the hydrogen generating electrode, and electrolyzes water to generate oxygen on the oxygen generating electrode and generate hydrogen on the hydrogen generating electrode. A control device controls electric current supply to the water electrolysis cell so that a potential of the oxygen generating electrode is higher than a reduction potential of the oxygen generating catalyst and lower than an oxygen generating potential, and a potential of the hydrogen generating electrode is lower than an oxidation potential of the hydrogen generating catalyst, during an operation stop.
Resumen de: US2025320616A1
A differential pressure electrolysis device is equipped with a resin frame member bonded to a peripheral edge portion of an electrolyte membrane. A first member is interposed between a first separator and the resin frame member, and a second member is interposed between the resin frame member and a second separator. The differential pressure electrolysis device is equipped with a positioning member. The positioning member positions the resin frame member relative to the first member or the second member. However, the positioning member permits the resin frame member to move along a surface direction.
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: WO2025215366A1
PROCESS AND SYSTEM The invention relates to processes and systems for the cracking of ammonia to produce hydrogen and nitrogen. The invention provides a process for controlling an ammonia cracking plant to place the ammonia cracking plant into a turndown state, an ammonia cracking plant in a turndown state, and a process for returning an ammonia cracking plant from a turndown state to a state of normal operation. FIGURE 2 TO ACCOMPANY
Resumen de: EP4631606A2
There is provided a system for preparing lithium hydroxide. The system comprises:an electrolysis cell, defining an anodic compartment separated from a central compartment by an anion exchange membrane and a cathodic compartment separated from said central compartment by a cation exchange membrane. The central compartment comprising at least one inlet for receiving an aqueous composition comprising lithium compound. The cathodic compartment comprises at least one cathode wherein said cathode is configured to produce a lithium hydroxide-enriched aqueous composition. A pH probe and at least one inlet for receiving acid or base for at least substantially maintaining the pH of said aqueous composition comprising said lithium compound at about 1 to about 4 is also provided.
Resumen de: EP4632108A1
A gas management system includes an anodic chamber, a cathodic chamber, and a membrane assembly configured to remove bubbles from an electrochemical cell to increase hydrogen generation of the electrochemical cell. The membrane assembly includes a first outer layer arranged between the cathodic chamber and the anodic chamber, a second outer layer arranged between the first outer layer and the cathodic chamber, and a spacer layer arranged between the first outer layer and the second outer layer.
Resumen de: CN120187948A
A hydrogen production system comprising a wind turbine facility comprising a wind turbine generator (18) connected to a hydrogen electrolyser (30) by a power converter system (22). A power converter system (22) includes a generator-side converter (24) and an electrolyzer-side converter (26) electrically coupled together by a DC link (28), and a converter controller (50) including a generator-side control module (50) coupled to the generator-side converter and an electrolyzer-side control module (52) coupled to the electrolyzer-side converter. The converter controller is configured to control the load torque on the wind turbine generator and the electrical power fed to the electrolysis cell to achieve a mechanical damping function associated with the wind turbine facility while maintaining a stable DC link voltage. Accordingly, advantageously, the wind turbine facility can achieve active control of the electromechanical damping system while operating the electrolysis cell at an effective operating point.
Resumen de: EP4632107A1
A method for producing hydrogen gas from non-purified water via sulphur depolarized electrolysis (SDE), said method comprises the steps of providing at least one electrochemical cell (2), which comprises at least one positive electrode (A) and at least one negative electrode (C), separated by a proton conductive membrane (3), non-purified water supply means (51) configured to supply non-purified water to the cathode, sulphur dioxide supply means (S2) configured to supply sulphur dioxide to the anode, electrical connecting means (4) configured to connect the anode (A) and the cathode (C) to an external power source (P), supplying non-purified water to the cathode, supplying sulphur dioxide to the anode, applying a voltage of at least 0.45 V and up to 1.37 V to the electrodes (A, C) to cause an electrolysis reaction that produces hydrogen gas at the cathode and sulphuric acid at the anode, removing produced hydrogen gas from the cathode and produced sulphuric acid from the anode.
Resumen de: EP4632113A1
The electrolysis cell according to the present disclosure includes: a first separator including a first surface; a second separator disposed with an accommodating space apart from the first separator, the second separator including a second surface facing the first surface; an ion-exchange membrane disposed in the accommodation space; a first power feeder disposed between the first separator and the ion-exchange membrane; a first catalyst layer disposed between the first power feeder and the ion-exchange membrane; a second power feeder disposed between the second separator and the ion-exchange membrane; a second catalyst layer disposed between the second power feeder and the ion-exchange membrane; and a flow direction changing part provided as a part of the first separator or disposed between the first separator and the first power feeder, the flow direction changing part changing a flow direction of at least a portion of an electrolyte flowing along the first surface in a first direction to a second direction intersecting the first surface at each of a plurality of positions in the first direction.
Resumen de: CN119866394A
A method for producing an ion conducting membrane comprising a membrane layer comprising a reconstitution catalyst. The film layer is made from an ink comprising a stabilized dispersion of reconstitution catalyst nanoparticles. Also provided are ion conducting membranes for electrochemical devices, such as fuel cells or water electrolysers, having a membrane layer comprising a reconstitution catalyst, the membrane layer comprising dispersed reconstitution catalyst nanoparticles, a nanoparticle stabilizer, and an ion conducting polymer.
Resumen de: GB2640128A
A catalyst-coated membrane (10) for a water electrolyser is provided. The catalyst-coated membrane comprises a polymer electrolyte membrane with an anode catalyst layer (12) on a first side of the membrane (14). The anode catalyst layer (12) comprises an oxygen evolution reaction catalyst containing at least one noble metal at a loading of the oxygen evolution reaction catalyst, based on the noble metal content, of less than or equal to 0.6 mg/cm2 . The polymer electrolyte membrane comprises a membrane layer comprising dispersed platinum group metal-containing nanoparticles (20), a nanoparticle stabilising agent and an ion-conducting polymer.
Resumen de: EP4632214A1
The invention relates to generating fuel for an internal combustion engine such as a piston engine or a gas turbine. The invention relates to a system, apparatuses and methods for producing hydrogen and for hydrogen fuel enhancement. The invention relates in particular to an electrolyser that comprises an electrolyser housing enclosing an interior space that is adapted for containing a water reservoir. The electrolyser housing comprises a side wall and a top cover and a bottom cover that are tightly connected to the side wall. The electrolyser further comprises a plurality of elongate electrodes that extend from the bottom cover and/or the top cover into the interior space enclosed by the electrolyser housing. The electrodes are electrically isolated from the electrolyser housing and are electrically connected to electric conductors for feeding DC current to the electrodes. The electric connections are configured to connect electrodes acting as cathodes to a negative voltage terminal of a DC electric power source and to connect electrodes acting as anodes to a positive voltage terminal of a DC electric power source..The invention further relates to a method of producing hydrogen enhanced hydrocarbon fuel comprising the steps of.- producing hydrogen from water by means of an electrolyser- vaporizing hydrocarbon fuel- mixing the hydrogen and the vaporized hydrocarbon fuel- compressing the mixture of hydrogen and the vaporized hydrocarbon fuel, and- ionizing the compressed mixtu
Resumen de: EP4632109A1
The present disclosure relates to systems and methods for increasing efficiency and performance by balancing pressure in electrolytic cell. The present disclosure relates to systems and methods of utilizing different valves for controlling absolute pressure and differential in the electrolytic cell system based on hydrogen demand and the operating state of the system.
Resumen de: US2024145732A1
Provided is a catalyst excellent in both oxygen reduction catalytic performance and oxygen evolution catalytic performance and making effective use of biomass, a manufacturing method thereof, an electrode for a metal-air secondary battery or a water electrolysis system containing the catalyst, and a metal-air secondary battery or a water electrolysis system containing the electrode.Provided is a catalyst containing a calcined product of a mixture including biomass-derived cellulose nanofibers and a dry matter containing proteins or amino acids, a manufacturing method thereof, an electrode for a metal-air secondary battery or an electrode for a water electrolysis system containing the catalyst, and a metal-air secondary battery or a water electrolysis system containing the electrode.
Nº publicación: EP4631617A1 15/10/2025
Solicitante:
POSCO HOLDINGS INC [KR]
RES INST IND SCIENCE & TECH [KR]
POSCO Holdings Inc,
RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
Resumen de: EP4631617A1
The present invention pertains to an ammonia decomposing catalyst and a method for producing same. More specifically, the present invention pertains to: an ammonia decomposing catalyst containing an MgAl<sub>2</sub>O<sub>4</sub> spinel support and ruthenium, the content of ruthenium being 0.1-5 wt% of the total weight of the catalyst; and a method for producing same.
BOPI
Sede Electrónica
