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821
results.
Updated on
01/05/2026 [07:44:00]
Absstract of: 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.
Absstract of: WO2024261689A1
Electrolyser device (1), of the type which uses the anion exchange membrane water electrolysis (AEMWE) technology for the production of hydrogen, characterized in that it comprises: - at least one support frame (2) with a substantially laminar development, comprising at least two seats (3) which are defined on the same support frame (2) so as not to overlap with each other, - at least two electrochemical modules (10) wherein: - each electrochemical module (10) is mounted at a respective seat (3), - each electrochemical module (10) includes an anion exchange separation membrane (11) which is interposed between two electrodes, respectively between an anode (12) and a cathode (13), - at least the separation membranes (11 ) of said at least two electrochemical modules (10) are structurally distinct and separated from each other, means (20) for applying electrical energy to the electrodes (12, 13) of each electrochemical module (10).
Absstract of: EP4734316A1
A hybrid power plant includes a nuclear source generator assembly (2), configured to provide a primary electric power (WEP) from a nuclear source; an electrolyzer (3) operable to produce a mixture (M) containing hydrogen from an inlet water flow (FWI) in the vapour and/or liquid phase; a hydrogen storage system (5), coupled to the electrolyzer (3) to receive hydrogen from the mixture (M); and a hydrogen generator assembly (7), operable to produce a secondary electric power (WES) using the hydrogen from the hydrogen storage system (5). A power divider (8), coupled to a distribution grid (15) and to the electrolyzer (3), is configured to controllably divide the primary electric power (WEP) between the distribution grid (15) and the electrolyzer (3) .
Absstract of: EP4733448A1
0001 A water electrolysis electrode 1 includes an electroconductive substrate 10 and a layered double hydroxide layer 20. The layered double hydroxide layer 20 is disposed on a surface of the electroconductive substrate 10. The layered double hydroxide layer 20 includes Ni. In a diffraction pattern obtainable by grazing incidence X-ray diffraction measurement of the layered double hydroxide layer, a diffraction peak height P<012> of a (012) plane is higher than a diffraction peak height P<003> of a (003) plane.
Absstract of: EP4733447A1
0001 A water electrolysis electrode 1 includes an electroconductive substrate 10 and a layered double hydroxide layer 20. The layered double hydroxide layer is disposed on a surface of the electroconductive substrate 10. An extinction coefficient k<800> of the layered double hydroxide layer 20 at an wavelength of 800 nm is 0.08 or more.
Absstract of: EP4733443A1
0001 An electrode 1 for water electrolysis cell includes a conductive base 10, a first layer 11, and a second layer 12. The conductive base 10 includes a transition metal. The first layer 11 is disposed on the conductive base 10, and includes two or more transition metals and oxygen. The second layer 12 is disposed on the first layer 11 and includes a layered double hydroxide (LDH) including two or more transition metals. The first layer 11 is disposed between the conductive base 10 and the second layer 12 in a thickness direction of the first layer 11. The first layer 11 includes a first transition metal that is the same as the transition metal included in the conductive base 10, and a second transition metal that is the same as the transition metal included in the second layer 12 and different from the first transition metal. The first transition metal exists in the first layer 11 at a concentration higher than a concentration of the first transition metal in the second layer 12.
Absstract of: WO2025002638A1
The present invention relates to a divided cell for alkaline water electrolysis, where the separator is equipped with a gasket having anisotropic elastic properties and exhibiting reduced gasket deformation along the plane of the major surface of the separator when subject to a compression force perpendicular to that plane. The invention also relates to an electrolyser comprising a plurality of cells as hereinbefore described.
Absstract of: EP4733451A1
A water electrolysis electrode 1 includes an electroconductive substrate 10 and a layered double hydroxide (LDH) layer 20. The layered double hydroxide layer 20 is formed on a surface of the electroconductive substrate 10. An effective film thickness of the layered double hydroxide layer 20 is 250 nm or more and less than 4000 nm. The layered double hydroxide layer 20 may include layered double hydroxide 20a. The effective film thickness of the layered double hydroxide layer 20 may be 3470 nm or less.
Absstract of: EP4733442A1
A water electrolysis electrode 1 includes a conductive substrate 11 and a layered double hydroxide layer 12. The layered double hydroxide layer 12 is disposed on a surface of the conductive substrate 11. The layered double hydroxide layer 12 includes two or more transition metals. The layered double hydroxide layer 12 includes a chelating agent.
Absstract of: EP4733444A1
A water electrolysis electrode 1 includes a conductive substrate 10 and a layered double hydroxide layer 11. The conductive substrate 10 has a surface 10a including nickel having a (111) plane orientation. The layered double hydroxide layer 11 includes a layered double hydroxide including two or more transition metals. The layered double hydroxide layer 11 is disposed on the surface 10a.
Absstract of: EP4733439A1
0001 A power supply unit supplies a current of a second current value different from a first current value to an electrolysis unit at a first time point from a state of supplying a current of the first current value to the electrolysis unit, and then returns to the state of supplying the current of the first current value at a second time point. A degradation detection unit finds a difference value between a first measured voltage of the electrolysis unit acquired when the current of the first current value is supplied before the first time point and a second measured voltage of the electrolysis unit acquired when the current of the first current value is switched to the current of the second current value at the first time point, and detects the degradation of the electrolysis unit according to the electrolysis unit voltage difference value.
Absstract of: EP4734317A1
The present invention relates to a method (1000-2000) of controlling an electric energy generation plant (1). The plant comprises a unit for generating electric energy from a renewable energy source (2), an electrolyzer (51) for the generation of hydrogen, a battery (8) connected to the electrolyzer (51), at least one converter (3,4) adapted to supply an available power generated by the electric energy generation unit (2) to at least one of a load and the electrolyzer (51), a control system (6) for controlling the plant (1), and input means (7). The input means are adapted to acquire at least one of input information relating to the operation of the plant (1), meteorological information of a region in which the plant (1) is located and information relating to the operation of further plants located in the vicinity of the plant (1).The method comprises that the control system performs the step of: monitoring (1002) the available power, generated by the renewable energy source (2), andwhen the available power falls below a threshold (1011), the method comprises that the control system performs the step of:estimating (1014-1017) a recovery time interval at the end of which the available power will exceed the threshold,determining (1014-1017) whether the battery is able to supply the electrolyzer (51) for said recovery time interval, and in the affirmative case, supplying (1012) the electrolyzer (51) by means of the battery (8).In particular, the step of estimating a recovery tim
Absstract of: EP4733249A2
A method of treating an at least partially unconsumed hydrogen generator cartridge including water and a metal hydride includes treating the at least partially unconsumed hydrogen generator cartridge to form a treated hydrogen generator cartridge. When subjected to testing conditions the treated hydrogen generator cartridge produces no hydrogen gas or produces hydrogen gas at a lower rate than the at least partially unconsumed hydrogen generator cartridge subjected to the testing conditions. The testing conditions include heating at less than or equal to 300 °C, agitation, exposing the metal hydride to a protic solvent, or a combination thereof.
Absstract of: EP4733445A1
The present invention discloses a hierarchical porous nickel electrode and a method for preparing the same. The method includes: spraying a nickel-aluminum material on a nickel substrate to prepare a nickel-aluminum coating on the surface of the nickel substrate, to obtain a first intermediate product, the first intermediate product including the nickel substrate and the nickel-aluminum coating; heat-treating the first intermediate product, to obtain a second intermediate product; placing the second intermediate product into alkaline solutions of different concentrations for stepwise activation sequentially, to obtain a hierarchical porous nickel electrode. In the stepwise activation, the concentrations of the alkaline solution are gradually decreased, and activation temperatures are gradually decreased. The hierarchical porous nickel electrode of this invention ensures high mass transfer rates and catalytic efficiency. The coating has strong bonding strength with the substrate, stable interlayer structure, good mechanical properties, stability, and long service life.
Absstract of: EP4734318A1
A hybrid power plant includes a nuclear source generator assembly (2), configured to provide a primary electric power (WEP) from a nuclear source; an electrolyzer (3) operable to produce a first mixture (M1) containing hydrogen and a second mixture (M2) containing oxygen from a water flow (FW); a hydrogen storage system (5), coupled to the electrolyzer (3) to receive hydrogen from the first mixture (M1); an oxygen storage system (6), coupled to the electrolyzer (3) to receive oxygen from the second mixture (M2); and a hydrogen generator assembly (7), operable to produce a secondary electric power (WES) using the hydrogen from the hydrogen storage system (5) and the oxygen from the oxygen storage system (6). A power divider (8), coupled to a distribution grid (15) and to the electrolyzer (3), is configured to controllably divide the primary electric power (WEP) between the distribution grid (15) and the electrolyzer (3).
Absstract of: EP4733449A1
0001 A water electrolysis electrode 1 includes an electroconductive substrate 10 and a layered double hydroxide layer 20. The electroconductive substrate 10 includes Ni. The layered double hydroxide layer 20 is disposed on a surface of the electroconductive substrate 10. The layered double hydroxide layer 20 includes Ni. In a XRD pattern of grazing incidence X-ray diffraction for the water electrolysis electrode 1, a ratio P<003>/P<111> of a diffraction peak intensity P<003> of a (003) plane of a layered double hydroxide to a diffraction peak intensity P<111> of a (111) plane of Ni is 0.025 or less.
Absstract of: WO2025058457A1
The present application relates to a hybrid electrode comprising plasmonic nanoparticles and an electrolytic system comprising same. The hybrid electrode and the electrolytic system comprising same according to embodiments of the present application may reactivate a catalyst surface by utilizing a plasmonic phenomenon during an electrochemical reaction using a plasmonic-active electrode (antenna-reactor) composite electrode.
Absstract of: EP4733440A1
Systems and methods for wastewater utilization are described herein. In some approaches, the system (100) comprises a solid oxide electrolyzer (104) and a syngas upgrading unit (112). The solid oxide electrolyzer (104) comprises a first electrode (128), a second electrode (130) and an electrolyte (132). The syngas upgrading unit (112) receives at least a portion of a product stream (110) from the solid oxide electrolyzer (104) and generates a wastewater stream (102) comprising water and a hydrocarbon species. A recycle line (120) recycles the wastewater stream (102) from the syngas upgrading unit (112) to the first electrode (128) of the solid oxide electrolyzer (104). In some embodiments, the system (100) comprises a carbon dioxide supply (108) to co-feed carbon dioxide to the solid oxide electrolier (104) with the wastewater stream (102). In some embodiments, the system (100) comprises a separation unit (114) that separates the wastewater stream (102) from a product stream (110) of the syngas upgrading unit (112).
Absstract of: WO2025127502A1
Provided according to exemplary embodiments of the present invention is an ammonia decomposition system capable of minimizing the generation of iron nitride, which is a by-product.
Absstract of: WO2024200817A1
The invention provides a porous transport layer for an electrolyser or for a fuel cell, comprising - a first nonwoven layer of metal fibers provided for contacting a proton exchange membrane, wherein the first nonwoven layer of metal fibers comprises metal fibers of a first equivalent diameter, wherein the first nonwoven layer of metal fibers has a first surface roughness and a first porosity, - a second nonwoven layer of metal fibers, wherein the second nonwoven layer of metal fibers comprises metal fibers of a second equivalent diameter, wherein the second nonwoven layer of metal fibers has a second surface roughness and a second porosity, wherein the first surface roughness is below 10 µm, the first equivalent diameter is smaller than the second equivalent diameter, the first surface roughness is smaller than the second surface roughness for at least 20%, e.g., in a range of 20% to 120%, wherein the first porosity is smaller than the second porosity for at least 10%, e.g., in a range of 10% - 50%, and wherein the first nonwoven layer is metallurgically bonded to the second nonwoven layer.
Absstract of: WO2024200810A1
Porous transport layer for an electrolyser or for a fuel cell, comprising - a first nonwoven layer of metal fibers provided for contacting a proton exchange membrane, wherein the first nonwoven layer of metal fibers comprises metal fibers of a first equivalent diameter, wherein the first nonwoven layer of metal fibers has a first surface roughness and a first porosity, - a second nonwoven layer of metal fibers, wherein the second nonwoven layer of metal fibers comprises metal fibers of a second equivalent diameter, wherein the second nonwoven layer of metal fibers has a second surface roughness and a second porosity, wherein the first surface has a material ratio of less than 5 % of material at a height of 5 µm, and more than 70% of material at a depth of -5 µm, the first equivalent diameter is smaller than the second equivalent diameter, the first surface roughness is smaller than the second surface roughness for at least 20%, e.g., in a range of 20% to 120%, the first porosity is smaller than the second porosity for at least 10%, e.g., in a range of 10% to 50%, and wherein the first nonwoven layer is metallurgically bonded to the second nonwoven layer.
Absstract of: WO2024206331A1
The present invention relates to a composition comprising about 90% to about 99.99% by weight of one or more non-crosslinked fluorinated sulfonyl fluoride polymers and about 0.01% to about 10% by weight of one or more precious metal catalyst, based on the total weight of the composition, where the one or more precious metal catalyst is uniformly distributed throughout the one or more non-crosslinked fluorinated sulfonyl fluoride polymer. Such a composition may be formed, for example by extrusion, into a cation exchange precursor and, after treatment, a cation exchange membrane. The resulting films and membranes have precious metal catalyst uniformly distributed throughout the layer of catalyst-containing polymer.
Absstract of: AU2024336445A1
The present invention relates to a method for obtaining hydrogen through water molecule dissociation using thermochemical reactions under (quasi-)isothermal conditions, which comprises the following steps: placing active material (103) in the reaction chamber (109) of a reactor (101); reducing the active material (103) by supplying heat; evacuating the oxygen produced through a first outlet (106); injecting water into the reaction chamber (109); oxidising the active material (103), thereby producing hydrogen; filtering the hydrogen produced through a selective filter (104) during the oxidisation of the active material (103); and evacuating the filtered hydrogen through a second outlet (107), thereby obtaining a flow of high-purity hydrogen. The invention also relates to a device for carrying out the method.
Absstract of: US20260110234A1
Embodiments of the invention relate to producing hydrogen from a subsurface formation by injecting a reactant into the subsurface formation and reacting the reactant with the subsurface formation to form at least one of hydrogen gas or a mineralized product within the subsurface formation. The hydrogen produced is collected or one or more components of the reactant is sequestered to form a mineralized product in the subsurface formation. Other embodiments of the invention relate to producing hydrogen by injecting a thermal fluid into the subsurface rock formation, where the thermal fluid includes a reactant. The reactant is reacted with components in the subsurface formation to form at least one of hydrogen gas mineralized sulfur, or mineralized carbon.
Nº publicación: WO2026083621A1 23/04/2026
Applicant:
ORION MACHINERY CO LTD [JP]
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Absstract of: WO2026083621A1
The present invention makes it possible to supply hydrogen gas from which impurities such as moisture and oxygen are suitably removed to a supply object that requires highly pure hydrogen gas. The present invention is provided with solenoid valves 7a, 7b which adjust the detection position of oxygen by an oxygen detection unit 8 and the flow rate of hydrogen gas Gh to a storage unit 20 in accordance with the control of a control unit 9, and is configured such that "a removal unit (a gas-liquid separation tank 3, a hollow fiber membrane filter 4, an oxygen removal filter 5, and a moisture removal filter 6)" and the oxygen detection unit 8 are housed in a housing 10, and the hydrogen gas Gh passed through the detection position is discharged into the housing 10. The hollow fiber membrane filter 4 is disposed so that the moisture separated from the hydrogen gas Gh can be discharged into the housing 10. When the hydrogen purity of the hydrogen gas Gh specified on the basis of the detection result by the oxygen detection unit 8 reaches a predetermined allowable purity for supply, the control unit 9 controls the solenoid valves 7a, 7b to supply the high purity hydrogen gas Gh to the storage unit 20.
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