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371
results.
Updated on
14/02/2026 [07:03:00]
Results 175 to 200 of 371
Absstract of: US20260008100A1
A porous titanium sheet configured to function as an anode side gas diffusion layer of a proton exchange membrane (PEM) electrolyzer is formed by a powder technique, such as tape casting or powder metallurgy.
Absstract of: US20260008043A1
The present disclosure provides a catalyst, its preparation and uses thereof, the catalyst comprising a conductive substrate coated by at least two layers including a proximal layer and a distal layer wherein said proximal layer comprises a proximal metal composition and said distal layer comprise a distal metal composition, the proximal metal composition being different from the distal metal composition; wherein said proximal metal composition comprises a metallic M and said distal metal composition comprise a combination of two or more different metal complexes, each having a formula MxLy, wherein M, which may be the same or different in said two or more metal complexes, represents a metal atom; L, which may be the same or different in said two or more metal complexes, represents a moiety comprising at least one atom selected from the group consisting of oxygen (O), phosphorous (P), boron (B) and nitrogen (N); x represents any value between (1) and (6); and y represents any value between (1) and (6); and wherein said metal atom of metallic M and said metal atom in MxLy may be the same or different metal atom.
Absstract of: US20260009145A1
An electrolysis system has at least two electrolysis installations, a power supply source with a direct voltage output, and a central supply line connected to the direct voltage output. A direct current, at a first direct voltage, can be fed into the central supply line. The electrolysis installations are connected electrically in parallel to the central supply line. For a direct voltage supply from the public power grid a central voltage source converter converts an input-side alternating voltage into the output-side first direct voltage at a direct voltage output. Each electrolysis installation is connected via a DC/DC converter that converts the first direct voltage into a second direct voltage, parallel to the direct voltage output so that the second direct voltage drops across the electrolysis installation. Each of the DC/DC converters can be controlled and/or regulated for adapting a level of its second direct voltage.
Absstract of: WO2025263071A1
An ammonia decomposition system includes: a first decomposition part for thermally decomposing ammonia into nitrogen and hydrogen; a steam supply part for generating steam and supplying the steam to the first decomposition part as a heat source; a recovery line for recovering steam after passage through the first decomposition part; a turbine driven by the steam recovered by the recovery line; and a power generation part for generating electric power by being driven by the turbine.
Absstract of: WO2025263000A1
A plant control device according to the present invention comprises: a signal reception unit that receives a signal including at least one of a power demand, a hydrogen demand, and a steam demand of a production process; and a control unit that, on the basis of the received signal, adjusts at least one of the amount of steam generated by a boiler, the amount of steam supplied to a steam turbine, the amount of steam supplied to an ammonia decomposition device, and the amount of steam supplied to the production process, such that a decrease in the load of the boiler is suppressed.
Absstract of: CA3273968A1
5 10 15 20 25 30 35 Abstract The present invention relates to a method of preparing a composite material, in particular one useful as a catalyst in an electrolytic hydrogen evolution reaction and/or the oxygen evolution reaction and/or urea oxidation-assisted water electrolysis. Provided is a method of preparing a composite material, the method comprising the steps of: (i) electrochemically depositing material onto a substrate from a deposition solution comprising a nickel (II) salt and graphene oxide, to obtain a nickel-reduced graphene oxide composite material comprising nickel dispersed on reduced graphene oxide, said composite material being deposited on the substrate; (ii) after step (i), placing the substrate, having the nickel-reduced graphene oxide composite deposited thereon, in an alkaline solution along with a counter electrode; and (iii) after step (ii), partially electrochemically oxidising the nickel, to obtain a partially oxidised nickel-reduced graphene oxide composite material comprising partially oxidised nickel dispersed on reduced graphene oxide, said composite material being deposited on the substrate. The composite of the invention demonstrates high catalytic activity for electrolytic hydrogen production under alkaline water electrolysis conditions (for example, a hydrogen evolution current of up to 500 mA cm-2 at -1.35 V against a Reversible Hydrogen Electrode). High activity is demonstrated even when the substrate (on which the composite is deposited)
Absstract of: 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.
Absstract of: 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.
Absstract of: US2025389040A1
A cation reduction device according to the disclosure includes a photocatalytic cell containing an electrolyte containing a first cation and photocatalyst particles, in which the electrolyte and the photocatalyst particles reduce the first cation to a second cation by photocatalytic activity of the photocatalyst particles generated by receiving light, and a pH of the electrolyte is within a pH range in which a zeta potential of the photocatalyst particles is 0 mV or higher.
Absstract of: CN120936752A
A feed water preparation system in a water electrolyser, suitable for producing hydrogen and oxygen using alkaline water in one or more pressurized electrolyser stacks (2), and comprising a product gas conditioning system having a safety valve blow-off stream conduit (11) connected to a feed water container (9), and/or a reduced pressure flow conduit (31) connected to a gas cleaning container on the water supply container (9).
Absstract of: WO2024231154A1
The present invention relates to a hydrogen gas production assembly comprised of a hydrogen gas production device, a container comprising 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. The present invention further relates to methods for the production of hydrogen gas via the hydrogen gas production assembly.
Absstract of: WO2026011021A1
Large scale exploitation of Solar energy is proposed by using floating devices which use solar energy to produce compressed hydrogen by electrolysis of deep sea water. Natural ocean currents are used to allow the devices to gather solar energy in the form of compressed hydrogen from over a large area with minimum energy transportation cost. The proposal uses a combination of well understood technologies, and a preliminary cost analysis shows that the hydrogen produced in this manner would satisfy the ultimate cost targets for hydrogen production and pave the way for carbon free energy economy.
Absstract of: WO2026010322A1
According to one aspect of the present invention, a water electrolysis system comprising a plurality of modularized water electrolysis stacks is provided, the system comprising: a plurality of water electrolysis stacks; and a stack management unit which determines a stack to be operated from among the plurality of water electrolysis stacks, with reference to load power corresponding to the plurality of water electrolysis stacks and the maximum operating power of each of the plurality of water electrolysis stacks, wherein an operating priority for the plurality of water electrolysis stacks is determined on the basis of a monitoring result of the operating voltage of each of the plurality of water electrolysis stacks.
Absstract of: WO2026009910A1
An electrolysis cell 21 comprises: a solid electrolyte layer 211; a fuel electrode layer 213 that is disposed as a stack on one surface side of the solid electrolyte layer 211; and an air electrode layer 212 that is disposed as a stack on the other surface side of the solid electrolyte layer 211. The fuel electrode layer contains Fe. When a surface 213a1 on the solid electrolyte layer side of the fuel electrode layer is defined as a first surface and a surface 213b2 on the side opposite from the solid electrolyte layer side is defined as a second surface, n points pk (where k is an integer of 1 to n) are set in the fuel electrode layer along the thickness direction at intervals such that a point p1 is located at the first surface, a point pn is located at the second surface, and k increases in the direction from the first surface toward the second surface, and when a value obtained by dividing, by n, a cumulative value of the Fe concentration at each of the points from the point p1 to the point pk is defined as a normalized cumulative value Ck of the Fe concentration at the point pk, a normalized cumulative value Cn is 0.118-0.367 wt%.
Absstract of: WO2026009849A1
This organic compound is represented by general formula (1). X includes at least one type of linking group selected from the group consisting of an arylene group and an aromatic heterocyclic group, Y is a single bond or an aliphatic hydrocarbon linking group, Ar is an aromatic heterocyclic group, R1 and R2 are each independently a hydrogen atom or an aliphatic hydrocarbon group, R3, R4, R5 and R6 are each independently a hydrogen atom, an aliphatic hydrocarbon group or an aryl group, and at least one combination selected from the group consisting of R3 and R5, and R4 and R6, may bond to each other to form a ring.
Absstract of: WO2026009969A1
The present invention addresses the problem of providing a hydrogen production apparatus using a solid oxide electrolysis cell, in which the water vapor utilization rate is high, and followability of a change in water vapor supply flow rate with respect to a power load fluctuation is good . The present invention also addresses the problem of providing a hydrogen production method using the hydrogen production apparatus. A hydrogen production apparatus 10 has a reactor R in which a solid oxide type electrolysis cell 10 is installed, the solid oxide type electrolysis cell 10 including: a water vapor electrode 20 in which an electrolytic reaction of water vapor occurs; a gas-impermeable and ion-permeable solid oxide electrolyte 40; and a counter electrode 30 in which a reaction of a charge carrier that is generated through the electrolytic reaction in the water vapor electrode 20 and that passes through the solid oxide electrolyte 40 occurs. The hydrogen production apparatus 10 has an injector 23 that supplies water in a pulsed manner to the water vapor electrode 20 side of the reactor R. The above problems are solved by supplying water to the water vapor electrode 20 in a pulsed manner.
Absstract of: WO2026009488A1
Disclosed is a novel technology for applying SOEC in a direct reduction process in which a shaft furnace is used. A hydrogen reduction system according to the present disclosure has a shaft furnace, a reducing gas supply device, a reducing gas heating device, a source material pretreatment device, and a hydrogen production device. In this hydrogen reduction system, a reducing gas is supplied to the shaft furnace via the reducing gas supply device and the reducing gas heating device, and a 600°C to 900°C iron oxide source material is supplied to the shaft furnace via the source material pretreatment device. The hydrogen production device has an SOEC, and the SOEC uses a steam-containing gas which has been discharged from the shaft furnace to produce hydrogen gas. The hydrogen gas produced by the SOEC is used as a reducing gas.
Absstract of: WO2026008081A1
Disclosed in the present invention is a system for preparing green methanol by means of biomass gasification coupled with green hydrogen. The system comprises: a gasification unit (A), a purification unit (B), a hydrogen and oxygen unit (C) and a synthesis unit (D), wherein synthesis gas (104) produced by the gasification unit (A) passes through the purification unit (B) and serves as a raw material gas (107) of the synthesis unit; oxygen (109) produced by the hydrogen and oxygen unit (C) serves as oxygen of the gasification unit, and hydrogen (113) produced by the hydrogen and oxygen unit (C) serves as a hydrogen source for adjusting the hydrogen-carbon ratio of the raw material gas of the synthesis unit (D); and part of a purge gas (121) of the synthesis unit (D) is returned to the gasification unit for recycling. The system of the present invention operates stably and reliably, and has a high utilization rate of renewable carbon sources, and a low methanol preparation cost.
Absstract of: WO2026006927A1
The various embodiments described herein generally relate to the production and storage of gasses, such as hydrogen and oxygen, and more particularly to an electrolysis cell for supplying the hydrogen and oxygen gasses as gaseous fuel for clean power generation systems such as linear alternators.
Absstract of: WO2026008968A1
Oxygen evolution reaction (OER) catalyst materials are provided comprising an iridium- containing compound on a particulate catalyst support, the OER catalyst material having the following characteristics: (i) a BET surface area in the range of and including 5 to 20 m2/g; (ii) an iridium content in the range of and including 25 to 50 wt%; and (iii) a Tmax in the temperature-programmed reduction profile of the OER catalyst material is in the range of and including 145 to 180 °C.
Absstract of: WO2026008847A1
The present invention relates to a method of producing green steel by reduction of iron oxides using hydrogen. The inventive method makes use of mining waste as starting material for H2 generation by SDE process or a sulfur-iodine-process. Side products can be utilized in the steelmaking process. This is achieved by a method according to the present invention comprising the following steps: a) a part or all of the iron oxide used as raw material for steelmaking is reduced by hydrogen, b) a part or all hydrogen required for the reduction of iron oxide is generated via a SO2-depolarized electrolyzer (SDE) process or a sulfur-iodine-process, and c) a part or all of the diluted sulfuric acid obtained from step b) is used for at least one of i. steel pickling, ii. reaction with steel mill dust for generation of iron sulfate (FeSO4 or Fe2(SO4)3), and iii. increasing the concentration of said diluted sulfuric acid by vacuum evaporation of water using off-heat from steelmaking or pyrite roasting.
Absstract of: WO2026008367A1
An offshore hydrogen production system is described comprising: a hydrogen production facility (10) comprising a power generator (70) configured to convert a source of renewable energy to electrical power and at least one electrolyser (16). The capacity of the at least one electrolyser (16) corresponds to a power output of the power generator (70). The hydrogen production facility (10) is configured to be supplied with utilities for the production of hydrogen from a utilities system (11) which is located remote from the offshore hydrogen production facility (10). Also described is a method of producing hydrogen, a method of designing an offshore hydrogen production system, a method for the production of an offshore hydrogen production system.
Absstract of: WO2026008324A1
The invention relates to an electrolyser (1) that comprises a stack (2) that comprises at least one electrochemical cell that comprises a cathode (4), a cathode chamber (50) that is confined by the cathode (4), an anode (5) and an anode chamber (51) that is confined by the anode (5), wherein the electrolyser (1) comprises a cathode pump (13) and a cathode inlet line (15) arranged downstream of the cathode pump (13), wherein the cathode pump (13) is adapted to pump a liquid into the cathode chamber (50) via the cathode inlet line (15), wherein the electrolyser (1) comprises an anode pump (14) and an anode inlet line (17) arranged downstream of the anode pump (14), wherein the anode pump (14) is adapted to pump the liquid into the anode chamber (51) via the anode inlet line (17), wherein the electrolyser (1) comprises a bypass line (11) that fluidly connects the cathode inlet line (15) and/or the cathode chamber (50) with the anode inlet line (17) and/or the anode chamber (51), wherein the electrolyser (1) comprises a pressure difference determination device that is adapted to determine the pressure difference between the pressure in the cathode chamber (50) and the pressure in the anode chamber (51), wherein the electrolyser (1) comprises a control valve (10) that is arranged in the cathode inlet line (15) or in the anode inlet line (17) and is adapted to control the flow of the liquid such that the pressure difference is minimised.
Absstract of: AU2024262055A1
A family of catalysts for oxygen evolution reaction (OER) in alkaline condition is disclosed. The catalysts utilize elements which are abundant on earth, leading to lower costs compared to IrCh catalysts. The catalysts can be used in the anode of an anion exchange membrane-based water electrolyzer. The family of new catalysts comprises Ni, Fe, M, B, and O, where M is a metal from Group VIB, Group VIII, and elements 57-71 of the Periodic Table. The catalyst has a layered double hydroxide structure. Methods of making the catalysts are also described.
Nº publicación: EP4673589A1 07/01/2026
Applicant:
GREEN HYDROGEN SYSTEMS AS [DK]
Green Hydrogen Systems A/S
Absstract of: AU2024228415A1
Enclosure adapted for a hydrogen and oxygen generating apparatus arranged in a movable has an interior and an interior surface and an exterior surface whereby the hydrogen and oxygen generating apparatus comprises at least one electrolyser stack adapted for electrolysing water to hydrogen product gas and oxygen product gas and accompanying gas and electrolyte handling equipment. The exterior surface of the enclosure comprises at least a heat insulating, flexible polymer cover element which is attached to a metal frame.
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