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425
resultados
Última actualización
15/01/2026 [07:10:00]
Resultados 75 a 100 de 425
Resumen de: KR20250178335A
본 발명에 따른 촉매 구조체의 제조 방법은, 니켈을 포함하는 다공성 지지체 준비하는 단계, 황을 포함하는 제1 소스, 셀레늄을 포함하는 제2 소스, 및 형상제어제를 준비하는 단계, 상기 제1 소스, 상기 제2 소스, 및 상기 형상제어제를 혼합하여 촉매 소스를 제조하는 단계, 및 상기 다공성 지지체 및 상기 촉매 소스를 수열 합성하여 니켈, 황, 및 셀레늄을 포함하는 촉매 로드(rod)를 제조하는 단계를 포함할 수 있다.
Resumen de: WO2025261939A1
The invention relates to an installation (2) comprising an electrochemical device (4) for producing dihydrogen, and a cooling device (6) which has: • a cooling unit (32) for cooling a heat transfer fluid (30); • a heat exchanger (34) configured for the exchange of heat between the heat transfer fluid (30) and at least a portion of the electrochemical device (4); • a decoupling tank (36) fluidically connected between the cooling unit (32) and the heat exchanger (34); • an electrical energy storage unit (26); • at least one electric pump (37) configured to circulate the heat transfer fluid (30) between the decoupling tank (36) and the heat exchanger (34); and • a control unit (28) configured to control the supply of electrical energy to each electric pump (37) by the electrical energy storage unit (26) if a supply fault of the cooling unit (32) is detected.
Resumen de: WO2025262308A1
The invention essentially consists in producing at least one closed loop provided with a heat exchanger in order to achieve indirect thermal coupling by returning at least high-temperature and/or low-temperature waste heat from a production unit (500) for producing at least one synthetic fuel to a thermal power plant (1), wherein the thermal power plant (1) is provided with a system (10) for converting heat into electricity, and wherein the hydrogen required for the production unit is supplied by a hydrogen-production unit (300) that produces hydrogen by electrolysis and is itself thermally coupled to the thermal power plant.
Resumen de: WO2025261987A1
A hydrogen extraction system for extracting hydrogen from a liquid electrolyte comprising at least one isotopologue of lithium hydride. The system includes an electrolysis cell comprising: an anode for generating hydrogen from the liquid electrolyte; a cathode spaced apart from the anode; and a solid-state electrolyte comprising a lithium-containing high entropy oxide (HEO) material. The solid-state electrolyte is for physically isolating the cathode from the liquid electrolyte and conducting lithium ions from the liquid electrolyte to the cathode.
Resumen de: CN119332296A
The invention relates to the field of electrocatalysts, in particular to an iridium dioxide/molybdenum disulfide/carbon matrix heterostructure electrocatalyst, a preparation method and application. According to the iridium dioxide/molybdenum disulfide/carbon matrix heterostructure electrocatalyst provided by the invention, IrO2 and MoS2 in a heterojunction structure can be mutually adjusted, so that the electrocatalyst has a higher electron transfer rate, excellent hydrophilicity, proper OH * adsorption capacity and a higher deprotonation rate, has better electrochemical performance in catalytic electrolysis of water, and can be used for preparing a high-performance electrocatalyst. In an oxygen evolution reaction, the iridium oxide shows performance far superior to that of commercial iridium oxide, and has relatively low overpotential and relatively high quality activity; good electrochemical performance is shown in the aspect of hydrogen precipitation and is superior to that of commercial Pt/C; and the used material shows relatively low decomposition voltage when being applied to electrolyzed water. Therefore, the IrO2/MoS2/CNT heterostructure catalyst can be widely and deeply applied to electrolyzed water.
Resumen de: WO2025263231A1
Provided are: a porous film for water electrolysis, the porous film containing an organic polymer that has a porous structure, wherein both surfaces of the porous film each have five or more pores that have a diameter of 1 µm or more in a 10 μm square area, the average pore diameter is 0.3 µm or less as measured by a bubble point method, and the thickness is 200 µm or less; a method for producing the same; an alkaline water electrolysis member; an alkaline water electrolysis cell; an alkaline water electrolysis device; and a method for producing hydrogen.
Resumen de: WO2025263025A1
This water electrolysis system includes: a water electrolysis device including a water electrolysis cell that generates hydrogen by electrolysis; a power supply device capable of supplying, to the water electrolysis device, a drive voltage for causing electrolysis in the water electrolysis cell and a voltage having polarity opposite that of the drive voltage; and a control device that controls the driving of the power supply device. In operation stop processing for stopping the electrolysis caused by the supply of the drive voltage, the control device controls the driving of the power supply device so as to stop the supply of the drive voltage to the water electrolysis device and then supply the opposite polarity voltage to the water electrolysis device.
Resumen de: WO2025262481A1
The present invention relates to an apparatus (1) for the electrochemical generation of gaseous hydrogen starting from an aqueous solution comprising at least one electrolyte, and the related method. The apparatus (1) comprises: - at least one anode (2) arranged, in use, in said aqueous solution; - at least one cathode (3) electrically connected to said anode (2) to form an electrochemical cell, said cathode (3) being arranged, in use, in said aqueous solution, wherein said anode (2) is made of a material comprising at least 90% metallic magnesium.
Resumen de: TW202506536A
A system for the catalytic cracking of ammonia to produce hydrogen, the system comprising: a main ammonia cracking reactor comprising one or more reaction tubes containing ammonia cracking catalyst and a fuel combustion zone surrounding the one or more reaction tubes to provide heat energy to support the cracking of ammonia in the one or more reaction tubes to generate a main hydrogen containing gas stream; and an auxiliary ammonia cracking reactor for cracking ammonia to generate an auxiliary hydrogen containing gas stream, the system being configured to direct the auxiliary hydrogen containing gas stream to both the ammonia cracking catalyst within the one or more reaction tubes of the main ammonia cracking reactor and to the combustion zone of the main ammonia cracking reactor to at least partially fuel the main ammonia cracking reactor.
Resumen de: WO2025263498A1
Provided are: a catalyst for a hydrogen generation reaction, the catalyst having extremely high catalytic ability in a hydrogen generation reaction and not utilizing any rare metal; a liquid composition or an electrode that contains the catalyst for a hydrogen generation reaction; and a water electrolysis device comprising the electrode. Provided are a catalyst for a hydrogen generation reaction containing an electroconductive material and a metal complex having a specific structure, a liquid composition containing the catalyst for a hydrogen generation reaction, an electrode including the catalyst for a hydrogen generation reaction, and a water electrolysis device comprising the electrode.
Resumen de: WO2025261792A1
An apparatus and a method for synthesizing methanol are disclosed. The apparatus includes a hydraulic pressure generator, a carbon-capturing device, an electrolysis device, and a reactor. The hydraulic pressure generator generates a pressurized water from ocean water. The carbon-capturing device has an electrodialysis unit and a carbon-capture unit. The electrodialysis unit generates an acid, a base, and a desalinated water from a first portion of the pressurized water. The carbon-capture unit generates carbon dioxide by acidification of a second portion of the pressurized water. The electrolysis device receives an input stream of water to generate hydrogen. The reactor receives the carbon dioxide from the carbon-capture unit and the hydrogen from the electrolysis device to synthesize methanol.
Resumen de: US2025389038A1
A control device for a hydrogen production apparatus is a control device for controlling operation of a hydrogen production apparatus and includes: an estimated reaching time calculation unit configured to calculate, on the basis of a change rate of a pressure of a storing unit for storing hydrogen produced by the hydrogen production apparatus, an estimated reaching time for the pressure of the storing unit to reach a specified value; a start-up time acquisition unit configured to acquire a start-up time of the hydrogen production apparatus in accordance with a state of the hydrogen production apparatus; and a determination unit configured to determine a start-up timing for starting up the hydrogen production apparatus on the basis of a comparison between the estimated reaching time and the start-up time.
Resumen de: WO2024097986A2
Disclosed herein are devices, systems, and methods of using aluminum, activated with a liquid metal catalyst stored inside of one or multiple shipping containers or shipping container-like boxes to produce hydrogen and direct heat on demand.
Resumen de: CN120390829A
The present invention provides a small high-voltage electrolyzer for generating hydrogen and oxygen, the small high-voltage electrolyzer comprising: one or more cells each comprising a plurality of high-voltage electrolysis cells wherein the electrolysis cells of the respective cells are electrically connected in series; and a central electrolyte header functionally connected to each of the electrolytic cells for supplying a liquid electrolyte to the cell; a central hydrogen header connected to each of the electrolytic cells for discharging the generated hydrogen from the cells; a central oxygen header connected to each of the electrolytic cells for discharging the generated oxygen from the cells; the direct-current power supply is used for supplying power to each unit of the electrolytic bath which is connected in series; wherein the cells of the electrolytic cells connected in series are electrically connected in parallel.
Resumen de: US2025389035A1
The present invention discloses a water electrolysis catalyst suitable for a polymer electrolyte water electrolysis apparatus, and an anode electrode membrane using the catalyst. The water electrolysis catalyst of the present invention is a water electrolysis catalyst containing iridium oxide in a powder form. The iridium oxide powder contains an amorphous iridium oxide powder, and an average particle size of the powder is 0.01 μm or more and 30 μm or less. The water electrolysis catalyst containing the iridium oxide powder of the present invention contains amorphous iridium oxide, shows a specific property in TG-DTA, and exhibits an exothermic peak in a region of 300° C. to 450° C. in the TG-DTA.
Resumen de: US2025387748A1
An active CO2 capture unit for capturing CO2 from a dilute source of CO2 input gas can include an inlet through which an input gas is introduced into the unit and a non-aqueous region comprising a non-aqueous CO2 binding organic liquid containing OH− arranged to be in contact with the input gas to chemisorb CO2 from the input gas and convert the chemisorbed CO2 into HCO3− by reacting with OH−. The unit also includes an aqueous region arranged downstream of the non-aqueous region, wherein at an aqueous region interface, the HCO3− interacts with H2O and decomposes to CO2 and CO32. An anion exchange membrane is disposed between the non-aqueous region and the aqueous region to facilitate HCO3− diffusion and migration from the non-aqueous region to the aqueous region. A captured CO2 outlet is disposed downstream of the aqueous region.
Resumen de: US2025387773A1
A photocatalytic cell of the disclosure is a photocatalytic cell that contains a photocatalyst sheet and an electrolyte. The photocatalyst sheet includes a carrier sheet provided with multiple fibers bonded thereto, and multiple photocatalyst particles supported or fixed on the carrier sheet, the multiple photocatalyst particles include tungsten oxide particles, and a mass of the multiple photocatalyst particles per unit area of the photocatalyst sheet is 20 g/m2 or more.
Resumen de: US2025388817A1
A method for producing a synthetic fuel from hydrogen and carbon dioxide comprises extracting hydrogen molecules from hydrogen compounds in a hydrogen feedstock to produce a hydrogen-containing fluid stream; extracting carbon dioxide molecules from a dilute gaseous mixture in a carbon dioxide feedstock to produce a carbon dioxide containing fluid stream; and processing the hydrogen and carbon dioxide containing fluid streams to produce a synthetic fuel. At least some thermal energy and/or material used for at least one of the steps of extracting hydrogen molecules, extracting carbon dioxide molecules, and processing the hydrogen and carbon dioxide containing fluid streams is obtained from thermal energy and/or material produced by another one of the steps of extracting hydrogen molecules, extracting carbon dioxide molecules, and processing the hydrogen and carbon dioxide containing fluid streams.
Resumen de: EP4667623A1
This hydrogen production system comprises: a solid oxide electrolysis cell (SOEC) that electrolyzes water vapor; a water vapor generation device that heats supply water to generate water vapor; and a combustor that partially burns hydrogen included in water vapor discharged from a hydrogen electrode of the SOEC. The water vapor generation device is configured such that the supply water is at least partially heated through heat exchange between at least part of the supply water and gas including combustion gas generated in the combustor so as to produce at least part of the water vapor.
Resumen de: EP4667624A1
An electrode catalyst layer 2 includes catalyst particles 12, an ionomer 13, and ionomer-adsorptive carbon fibers 14α. The ionomer-adsorptive carbon fibers 14α may have an adsorption amount of the ionomer of 10 mg or more per 1 g of the ionomer-adsorptive carbon fibers, may have a diameter in a range of 50 nm or more and 1 µm or less, and may be vapor-grown carbon fibers (VGCF) subjected to hydrophilic treatment.
Resumen de: AU2024222987A1
A system, comprising: an electrolyzer having a plurality of electrolysis cells arranged in a cell stack, wherein the electrolysis cells are electrically connected in series and grouped into two or more cell groups, each cell group having an electrical contact at either end; an electrical circuit having one or more switches, each switch coupled between the electrical contacts of a respective one of the cell groups and configured to selectively disconnect the cell group from the cell stack by electrically bypassing the cell group via a lower resistance path, to thereby vary the number of active electrolysis cells in the cell stack; and a controller configured to determine the number of active electrolysis cells based on a variable amount of direct current (DC) electrical energy supplied to the cell stack by an electrical energy source, and to control the one or more switches based on the determination.
Resumen de: WO2024170774A1
The present invention relates to a method of producing green hydrogen and associated products from pyrite separated from mine waste (e.g., disposed tailings or active tailings streams) in an energetically self-sustained process. This is achieved by a method according to the present invention comprising the following steps: (a) separation and enrichment of a mine waste material comprising pyrite to obtain a pyrite concentrate, (b) oxidation of the pyrite concentrate to obtain SO2 gas; (c) separation of the SO2 gas; (d) utilization of SO2 gas from step (c) to generate H2 gas and H2SO4 via a SO2-depolarized electrolyzer (SDE) process or a sulfur-iodine-cycle (S-I-cycle) process.
Resumen de: AU2024221020A1
The invention comprises a method for connecting a pair of electrolyser stacks with electrolyte, electric current and gas drain piping. Accordingly, each pair of stacks of the electrolyser: - through interconnection endplates are supplied with alkaline electrolyte at elevated pressure by common electrolyte supply pipes and further, - through the interconnection endplate drain off oxygen gas containing electrolyte, and hydrogen gas containing electrolyte, to common gas separation vessels for oxygen and hydrogen respectively, - pull first electrically interconnected current injection electrodes adjacent to interconnection endplates to zero electrical potential through a zero potential conductor, and - supply second current injection electrodes placed adjacent to distal endplates with electric current at potentials equally higher and lower respectively than the zero potential at the first electrodes.
Resumen de: CN120882907A
A system and method for generating hydrogen from a liquid source comprising water is disclosed. The system comprises: a high fluid velocity electrolysis cell comprising an inlet and an outlet, the inlet of the high fluid velocity electrolysis cell being fluidly connected to a liquid source; and a gas fractionation system fluidly connected to the outlet of the high fluid velocity electrolysis cell.
Nº publicación: EP4665889A1 24/12/2025
Solicitante:
JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD [GB]
Johnson Matthey Hydrogen Technologies Limited
Resumen de: WO2024170902A1
An oxygen evolution catalyst material is provided, the catalyst material comprising iridium oxide (IrOx) and a potassium iridate crystalline phase. The potassium iridate crystalline phase provides a reflection in the x-ray diffraction (XRD) pattern of the catalyst material at 20 = 13° and offers high oxygen evolution catalyst activity.
BOPI
Sede Electrónica
