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914
results.
Updated on
03/04/2026 [07:05:00]
Results 75 to 100 of 914
Absstract of: US20260077337A1
A photocatalyst has a perovskite type crystal, the photocatalyst has, present on a surface, a stepped structure including a terrace and a step, and an occupancy ratio of a projected area of the stepped structure to a total projected area in an observation image of the surface is 20% or more. It is preferable that the terrace is formed of a {100} facet, and the step is formed of the {100} facet or a {110} facet.
Absstract of: US20260078502A1
The electrochemical reaction device includes: an electrochemical reaction structure including a cathode, an anode, a diaphragm having a first surface on the cathode and a second surface on the anode, a cathode flow path, and an anode flow path; a first flow path through which a first fluid containing a reducible material to the cathode flow path flows; a second flow path through which a second fluid containing water to the anode flow path flows; a third flow path through which a third fluid containing the reduction product from the cathode flow path flows; and a fourth flow path through which a fourth fluid containing water and oxygen from the anode flow path flows. The diaphragm has concentration gradient in which a concentration of a chemical species decreases from the second surface to the first surface, the chemical species being configured to decompose, capture, or inactivate an active oxygen specie.
Absstract of: US20260078501A1
A water electrolysis system having: a membrane-electrode assembly; a first separator in contact with a hydrogen electrode of the membrane-electrode assembly; a hydrogen flow passage provided between the first separator and the hydrogen electrode; a second separator in contact with an oxygen electrode of the membrane-electrode assembly; an oxygen flow passage provided between the second separator and the oxygen electrode; and a cooling device that cools the hydrogen electrode such that a temperature of the hydrogen electrode becomes lower than a temperature of the oxygen electrode.
Absstract of: US20260078515A1
An electrochemical half-cell operates to form a gas at a solid surface which may be an electrode. The electrolyte liquid comprises an additive, which is a high molecular weight flexible linear polymer or a viscoelastic linear surfactant. A flow path through the half-cell is configured to compel flow of liquid through the half-cell to make a succession of changes of direction. The electrolyte liquid is pumped through the half-cell at a rate which is sufficient that the additive and flow path configuration put the flowing electrolyte in a state of elastic turbulence which causes bubbles of gas to detach from the surface on which they are formed while they are still small, freeing the surface area for further reaction. The half-cell may be part of an electrolyser making hydrogen and oxygen from water.
Absstract of: US20260078513A1
A method of operating an electrolyzer system includes operating the electrolyzer system in a steady state mode by providing steam, heat and electric power to at least one stack of electrolyzer cells to electrolyze the steam and generate a hydrogen containing product stream that is provided to a hydrogen processor; and operating the electrolyzer system in a hot isolated standby mode by stopping the provision of the steam to the at least one stack of electrolyzer cells, stopping the provision of the hydrogen containing product stream to the hydrogen processor, recycling the hydrogen containing product stream through the at least one stack of electrolyzer cells while providing the heat to the at least one stack of electrolyzer cells, and not providing external hydrogen from outside the electrolyzer system to the at least one stack of electrolyzer cells.
Absstract of: US20260078510A1
According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0≤A≤B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or/and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.
Absstract of: US20260078509A1
This invention discloses a Co3O4@IrOx catalyst, its preparation method, and its applications, belonging to the technical field of catalyst materials for hydrogen production through water electrolysis. The preparation method of the Co3O4@IrOx catalyst is as follows: using ZIF-67 as the core, adding a quaternary ammonium salt surfactant and an imidazole organic ligand, and reacting it with a zinc source to obtain a ZIF-67@ZIF-8 core-shell material; coating it on carbon paper to obtain a ZIF-67@ZIF-8 electrode sheet; pyrolyzing it to obtain a Co3O4@defective ZIF-8 electrode sheet; using a standard three-electrode system, with the Co3O4@defective ZIF-8 electrode sheet as the working electrode, performing pulsed potential etching in potassium hydroxide solution to obtain a Co3O4@vacancy-type ZIF-8 electrode sheet; and electrochemically depositing it in an iridium-containing potassium hydroxide solution to obtain the Co3O4@IrOx catalyst. The Co3O4@IrOx catalyst exhibits excellent hydrogen production capacity through water electrolysis.
Absstract of: US20260078508A1
The present invention discloses a nickel oxide-based iron-iridium bi-electrocatalytic catalyst, its preparation method and application, belonging to the technical field of catalytic materials. In the present invention, a nickel oxide material is prepared as a nickel oxide working electrode, and a mixed solution of an iron precursor, an iridium precursor, and an OH- source is used as an electrolyte. Iron-iridium bimetal is deposited on the nickel oxide working electrode by electrochemical deposition to obtain a nickel oxide-based iron-iridium bi-electrocatalytic catalyst. The preparation method provided by the present invention realizes the multi-scale dispersion of two metal elements, iron and iridium, on the surface of the nickel oxide support. This multi-scale structure not only provides abundant catalytic active sites, enabling the catalyst to more efficiently adsorb and activate reactants during the reaction process, but also significantly enhances the electron transfer efficiency, thereby improving the catalytic activity of the catalyst. In addition, the synergistic effect of iron and iridium optimizes the electronic structure of the catalyst, further improving its catalytic performance.
Absstract of: US20260078218A1
A block copolymer including one or more segments containing an ionic group (hereinafter referred to as an “ionic segment(s)”) and one or more segments containing no ionic group (hereinafter referred to as a “nonionic segment(s)”), wherein the ionic segment has an aromatic hydrocarbon polymer having a number-average molecular weight of more than 40,000 and 50,000 or less, and wherein the block copolymer satisfies the relation of: Mn3/(Mn1+Mn2)>1.5, wherein Mn1 represents the number-average molecular weight of the ionic segment, Mn2 represents the number-average molecular weight of the nonionic segment, and Mn3 represents the number-average molecular weight of the block copolymer. Provided is a block copolymer and a polymer electrolyte material produced using the same, wherein the block copolymer has excellent proton conductivity even under low-humidity conditions, has excellent mechanical strength and physical durability, and has an excellent in-process capability.
Absstract of: CN120981607A
A selective membrane is described that includes a porous polymer membrane and a selective material on at least one outer surface. A selective material comprising a composite material of an ion exchange polymer and zirconia particles (ZrO2) distributed throughout the ion exchange polymer may be applied as a liquid by a spray method. Selective membranes made by the methods described herein are suitable for alkaline water electrolysis applications.
Absstract of: US20260071340A1
A catalyst for water electrolysis electrode, a method for preparing the catalyst, and a water electrolysis electrode including the catalyst are provided. A catalyst for water electrolysis electrode according to an embodiment of the present disclosure includes a carbon structure doped with a first element and a second element, and an alloy nanoparticle doped with the first element. The alloy nanoparticle is supported on a surface of the carbon structure, and the first element is iron (Fe).
Absstract of: CN120882908A
The invention relates to an electrolysis cell system (10) comprising at least one electrolysis cell (20) comprising at least one steam inlet (41) and at least one exhaust gas outlet (38; 39), and a turbocharger (62) for compressing the exhaust gas from the electrolysis cell (20). The turbocharger (62) comprises a driving fluid inlet, a driving fluid outlet, a compressed fluid inlet, a compressed fluid outlet, a compressor (13) and a turbine (12). The turbine (12) is configured to drive the compressor (13). A driving fluid outlet of the turbocharger (62) is fluidly connected to at least one steam inlet (41) of the electrolysis cell (20). At least one exhaust gas outlet (38; 39) is fluidly connected to a compressed fluid inlet of the turbocharger (62). The system (10) may further include a steam source in fluid connection with the drive fluid inlet of the turbocharger (62) to power the turbine (12) using pressurized steam.
Absstract of: DE102025132206A1
Wasserelektrolysesystem mit: einer Membran-Elektroden-Anordnung; einem ersten Separator, der in Kontakt mit einer Wasserstoffelektrode der Membran-Elektroden-Anordnung steht; einem Wasserstoffströmungsdurchgang, der zwischen dem ersten Separator und der Wasserstoffelektrode vorgesehen ist; einem zweiten Separator, der in Kontakt mit einer Sauerstoffelektrode der Membran-Elektroden-Anordnung steht; einem Sauerstoffströmungsdurchgang, der zwischen dem zweiten Separator und der Sauerstoffelektrode vorgesehen ist; und einer Kühlvorrichtung, die die Wasserstoffelektrode so abkühlt, dass eine Temperatur der Wasserstoffelektrode niedriger wird als eine Temperatur der Sauerstoffelektrode.
Absstract of: AU2025268573A1
The present invention relates to the technical field of the electrolysis of water, and specifically relates to a low-hydrogen-permeability proton exchange membrane, and a preparation method therefor and the use thereof. The proton exchange membrane comprises a Pt-containing additive layer and a matrix membrane, wherein the Pt-containing additive layer is composed of a Pt additive and a fluorine-containing proton exchange resin, the Pt-containing additive layer comprises an array layer and a flattening layer, the thickness ratio and the active-component ratio of the array layer to the flattening layer are respectively within the ranges of 1:(0.5-30) and 1:(1-50), and the array layer is composed of arrays arranged in order and an array layer resin coating the arrays. In the low-hydrogen-permeability proton exchange membrane provided by the present invention, by providing the Pt-containing additive layer consisting of the array layer and the flattening layer, the specific surface area of the Pt-containing additive layer is effectively increased by means of the arrays in the array layer, thereby achieving the efficient utilization of an additive; moreover, the hydrogen permeability improvement effect is further improved by controlling the thickness ratio and the active-component ratio of the array layer to the flattening layer and the parameters of the arrays.
Absstract of: AU2024336964A1
The present invention relates to a water electrolyser system for production of compressed hydrogen, comprising a water electrolyser stack, a multiphase pump arranged downstream of the electrolyser stack and a hydrogen gas/liquid separator. The multiphase pump is arranged between the water electrolyser stack and the hydrogen gas/liquid separator. The present invention also relates to a method for production of compressed hydrogen in a water electrolyser system including: supplying deionized water or liquid electrolyte to a water electrolyser stack; producing hydrogen in a water electrolyser stack; compressing a mixture of produced hydrogen and entrained deionized water or liquid electrolyte in a multiphase pump; and separating the compressed mixture of produced hydrogen and entrained deionized water or liquid electrolyte in a hydrogen gas/liquid separator.
Absstract of: WO2026058474A1
This water electrolysis system is provided with: a hydrogen production device unit that comprises a water electrolysis stack unit that includes one or more water electrolysis stacks that produce oxygen and hydrogen through an electrolytic reaction; a power source that supplies direct-current power to the one or more water electrolysis stacks; a pure water supply piping system that supplies pure water; an oxygen outflow piping system that causes oxygen produced by the water electrolysis stack unit to flow out to the outside; a hydrogen outflow piping system that causes hydrogen produced by the water electrolysis stack unit to flow out to the outside; an insulation unit that electrically insulates between the hydrogen production device unit and the ground; electrically insulating first insulated piping that is disposed in part of the pure water supply piping system; electrically insulating second insulated piping that is disposed in part of the oxygen outflow piping system; and electrically insulating third insulated piping that is disposed in part of the hydrogen outflow piping system.
Absstract of: WO2024230958A1
An electrochemical device (10'), with a cell stack consisting of a plurality of cell stack elements, with a force application unit (13) which exerts a force on the cell stack in order to press the cell stack elements of the cell stack fluid-tightly in sealing regions (17) of the cell stack, wherein the force application unit (13) is designed in such a manner that the force for pressing the cell stack acts on the cell stack and therefore on the sealing regions (17) of the cell stack depending on the operating state of the electrochemical device (10').
Absstract of: FI20246132A1
The application relates to a method and an apparatus for forming a feedstock for a steam cracking process. Hydrogen gas (4) and a feed (1) comprising at least carbon dioxide are fed to a first reactor (2) in which the feed reacts with the hydrogen to form a synthesis gas (3) comprising at least carbon monoxide, and the synthesis gas is supplied to a second reactor (6) in which the synthesis gas is treated in the presence of a synthesis catalyst to form a hydrocarbon composition (7) comprising at least naphtha range hydrocarbons. Undesired hydrocarbons, unreacted gases and/or water are separated from the hydrocarbon composition (7) and a fraction of the hydrocarbon composition (8) which comprises at east naphtha range hydrocarbons is formed. The fraction of the hydrocarbon composition is treated by a hydrotreatment (10) in which hydrogenation and hydrodeoxygenation reactions are carried out in the presence of at least one hydrotreatment catalyst in one or more reactors for modifying the fraction (8) to form a modified hydrocarbon composition (11), and the feedstock is formed from the modified hydrocarbon composition.
Absstract of: WO2024231175A1
The present invention concerns composite casing structures for electrolytic cells wherein each casing structure is made of a plurality of casing components, optionally made of at least two different materials, which are subsequently joined together to form a structure suitable to house one or more of the following elements: electrodes, separators, bipolar elements, elastic elements and/or current collectors. The casing structure may be advantageously employed in electrolysers for high pressure alkaline water electrolysis.
Absstract of: 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.
Absstract of: EP4711327A1
A corrosion-resistant system, a carbon-free power generation and fuel cell system comprising the corrosion-resistant system, and a method for ammonia decomposition utilizing said corrosion-resistant system are provided. The corrosion-resistant system includes: an ammonia supply unit; a first pipe connected to the ammonia supply unit; an ammonia decomposition unit comprising a chamber connected to the first pipe; and a second pipe connected to the chamber, wherein the chamber is configured to operate at an operating temperature of 410°C or lower, the first pipe and the chamber comprise at least one selected from the group consisting of carbon steel, low alloy steel, stainless steel and a nickel-based alloy, and the second pipe comprises a nickel-based alloy (NT) satisfying Equation 1 below. T≤15μm
Absstract of: EP4711328A1
Disclosed are an ammonia supply system, a hydrogen production system, a carbon-free power generation system and a fuel cell system. The ammonia supply system includes: an ammonia supply unit; an ammonia demand unit; a connection line that is arranged to connect the ammonia supply unit and the ammonia demand unit; a hydrogen supply unit; and one or more first hydrogen supply lines that are arranged to connect the hydrogen supply unit and the connection line, and are configured to supply a hydrogen gas stream, wherein the connection line includes a first pipe configured to be controlled to an average temperature of 410°C or lower and a second pipe configured to be controlled to an average temperature of greater than 410°C, and the second pipe includes a nickel-based alloy (NT) satisfying Equation 1 below. T≤15μm,
Absstract of: EP4711497A1
A method is described for detecting the presence of hydrogen in the oxygen stream generated by a PEM cell, wherein the PEM cell comprises a membrane permeable to H<sup>+</sup> ions , a first inlet conduit for water, a second outlet conduit for hydrogen, and a third outlet conduit for the generated oxygen. The hydrogen and the oxygen being produced by the molecular dissociation of water inside the PEM cell.In the method the temperature of a catalyst placed in contact with said oxygen stream, is detected.
Absstract of: EP4711506A1
Provided are an electrochemical cell and an electrochemical device that are easily manufactured and capable of retrofitting. The electrochemical cell includes: a first plate and a second plate between which an anode chamber and a cathode chamber are respectively formed on respective opposing inner surface sides thereof; and a sealing portion provided between the first plate and the second plate, in which the sealing portion includes plural frame bodies disposed at intervals from an inner side to an outer side, and plural sealing members disposed between the plural frame bodies and disposed in a compressed state between the first plate and the second plate. The electrochemical device includes the electrochemical cell.
Nº publicación: GB2700815A 18/03/2026
Applicant:
TOKAMAK ENERGY LTD [GB]
Tokamak Energy Ltd
Absstract of: GB2700815A
A hydrogen extraction system for extracting hydrogen from a liquid electrolyte 102 comprising at least one isotopologue of lithium hydride (LiH), the system including an electrolysis cell 100 comprising an anode 108 for generating hydrogen from the liquid electrolyte 102, a cathode 110 spaced apart from the anode 108, and a solid-state electrolyte 112 comprising a lithium-containing high entropy oxide (HEO) material physically isolating the cathode 110 from the liquid electrolyte 102 and conducting lithium ions from the liquid electrolyte 102 to the cathode 110. Use of a HEO comprising solid-state electrolyte in the electrolytic extraction of hydrogen from a liquid electrolyte comprising at least one isotopologue of lithium hydride, and a method of extracting hydrogen from a liquid electrolyte comprising at least one isotopologue of lithium hydride using the extraction system are defined. Further specified is a tritium breeding system comprising the hydrogen extraction system and a breeder blanket, the breeding system configured to supply liquid electrolyte comprising at least one tritium-containing isotopologue of lithium hydride to the electrolysis cell from the breeder blanket and to return liquid electrolyte to the breeder blanket from the electrolysis cell following electrolysis of the at least one tritium-containing isotopologue of lithium hydride. Figure 1
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