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860
results.
Updated on
15/11/2026 [07:11:00]
Results 525 to 550 of 860
Absstract of: US20260297777A1
0000 An aspect of the present disclosure is directed to improving diagnostic measurements during operation of electrolyzers. In one embodiment, a hydrogen production system contains an electrolyzer; a direct current (DC) voltage source to apply a DC voltage across the electrolyzer to cause production of hydrogen by the electrolyzer; a test source to apply an alternating current (AC) signal across the electrolyzer to perform measurement of a diagnostic parameter of the electrolyzer; and a filter located in a path between the DC source and the electrolyzer, the filter designed to block the AC signal from when the AC signal is applied across the electrolyzer. As such the test source is operable to perform the measurement during the production of the hydrogen while the filter prevents the diversion of the AC signal to the DC source.
Absstract of: WO2026203789A1
This water electrolysis system (11) comprises: a water electrolysis device (15) provided with a plurality of electrolysis tanks (13) which are connected at least in series to a power converter (21) and in which water electrolysis is performed; and a conductive shielding body (17) which accommodates the water electrolysis device (15) in an internal space so as to surround the water electrolysis device (15). A shield body potential (Vsh), which is a potential pertaining to the shield body (17), is set to converge, in a state of being insulated from a ground potential, to a prescribed allowable potential difference (Vpd) with respect to a water electrolysis device potential (Vwe) that is a potential pertaining to the water electrolysis device (15). The present invention secures a reduction effect of an explosion event caused by leaked hydrogen regardless of a leakage place of hydrogen.
Absstract of: US20260297762A1
0000 The disclosed technology relates to electrochemical systems and methods for the energy-efficient generation of base and acid solutions and deionization of saline waters. Various systems and methods include hydrogen pump cells, capacitive-faradaic hybrid cells, and/or zinc redox-based cells. These methods strategically utilize membranes, hydrogen evolution and oxidation reactions, charge storage materials, and redox-active metals to maximize energy efficiency for base and acid generation. Various embodiments enable simultaneous base/acid generation alongside energy storage/conversion, enabling continuous operation of an external device (e.g., a base/acid generating process) during periods of intermittency in renewable energy. Various implementations involve integration with carbon dioxide capture systems and other chemical systems and processes.
Absstract of: WO2026204899A1
Provided are: a separator for water electrolysis, the separator being composed of a film that contains a polymer having at least one constitutional unit selected from a constitutional unit represented by general formula (A) and a constitutional unit represented by general formula (B); and a material and a polymer for a separator for water electrolysis, which are suitable for the formation of the separator for water electrolysis. In the formulae, L groups each independently represent a C1-20 alkylene group, X groups each independently represent a hydrogen atom, Li, Na, K, or Cs.
Absstract of: US20260297775A1
A metal nitride hybrid composite catalyst having catalytic activity for an oxygen evolution reaction (OER), a hydrogen evolution reaction (HER), or an oxygen reduction reaction (ORR) is disclosed. The metal nitride hybrid composite catalyst may include a cerium-substituted metal nitride particle and a layered metal double hydroxide nanosheet grown on a surface of the metal nitride particle.
Absstract of: WO2026205559A1
According to the present invention, it is possible to provide an alkaline water electrolysis device and ion exchange membrane for alkaline water electrolysis enabling the electrolysis voltage to be kept low even at high current densities during alkaline water electrolysis, and having gas blocking properties that inhibit intermixing between hydrogen gas and oxygen gas generated, even at a low current density. The present invention provides an ion exchange membrane including a fluoropolymer having an ion exchange group and a woven fabric containing a polymer having a hydrogen permeability coefficient within a predetermined range. The weight of the fluoropolymer per unit area of the ion exchange membrane, the volumetric fraction of the polymer constituting the woven fabric in the ion exchange membrane, and the ion exchange capacity of the fluoropolymer are within predetermined ranges.
Absstract of: WO2026203429A1
This electrolysis system comprises: an electrolysis device that generates a cathode off-gas containing hydrogen through electrolysis using water as a raw material; a raw material system that supplies the raw material to the electrolysis device; a cathode regeneration heat exchanger that exchanges heat between the cathode off-gas and a cathode supply gas supplied to a cathode of the electrolysis device; a drain separator that separates moisture contained in the cathode off-gas; a synthesis gas booster that is provided on the downstream side of the drain separator; a tank that is provided on the downstream side of the synthesis gas booster; and a recycle system that returns a portion of the synthesis gas, from which moisture has been separated by the drain separator, to the raw material system through the tank.
Absstract of: WO2026204931A1
The purpose of the present disclosure is to provide an ammonia production apparatus capable of efficiently producing ammonia and suppressing production cost. The present disclosure relates to an ammonia production apparatus comprising: an anode chamber which has an anode electrode having a water electrolysis catalyst and to which water is supplied; a cathode chamber which has a cathode electrode having an ammonia synthesis catalyst and to which gaseous nitrogen is supplied; a diaphragm provided between the anode chamber and the cathode chamber; and a cathode electrode drying means for drying the cathode electrode. In the ammonia production apparatus, ammonia is synthesized from a hydrogen source and the nitrogen in the presence of the ammonia synthesis catalyst in the cathode chamber.
Absstract of: WO2026205248A1
Problem To provide a composite that can be used in an electrode for electrochemical water decomposition and is configured such that the carried amount of a catalyst material such as platinum or iridium oxide is reduced as compared with the prior art. Solution Provided is a method for preparing a composite in which a catalyst material is formed on a support including a carbon nanotube molded body, the method comprising: (1) a step for bringing a support including a carbon nanotube molded body into contact with a solution containing a catalyst precursor for the catalyst material; (2) a step for drying the support brought into contact with the solution to obtain a support carrying the catalyst precursor; and (3) a step for reducing the catalyst precursor to convert the catalyst precursor to a metal, the method optionally including a step, following step (3), for oxidizing the metal.
Absstract of: DE102025112221A1
Die Erfindung betrifft eine Membranelektrodenanordnung (1), die eine Kathode (2), eine Anode (3) und eine zwischen der Kathode (2) und der Anode (3) angeordnete protonenleitfähige Membran (4) umfasst, wobei die Anode (3) eine katalytische Zusammensetzung (5) umfasst, wobei die katalytische Zusammensetzung (5) einen Sauerstoffevolutionskatalysator (6) und eine platinhaltige Komponente (7) umfasst und wobei die platinhaltige Komponente (7) ein keramisches Material (8) umfasst, das eine Platinbeschichtung (9) aufweist.
Absstract of: KR20260143268A
본 발명은 수전해용 비백금계 삼원계 합금 촉매, 이의 제조방법, 이를 포함하는 수전해용 전극 및 상기 수전해용 전극을 포함하는 수전해용 막전극 접합체에 관한 것으로 Ni-Mo-Mn의 삼원계 합금을 포함하므로 산성 작동 환경에서도 촉매 활성 및 수소발생반응 활성이 현저하게 우수하고, 전기화학적 성능을 향상시킬 수 있다.
Absstract of: US20260297769A1
0000 An electrode, including: a substrate that has a surface composed of at least one of nickel, nickel oxide, and nickel hydroxide; and scale-like protruding parts provided on the surface of the substrate.
Absstract of: US20260297771A1
Molybdenum carbide includes a Mo2C crystal structure, in which a content of carbon with respect to a total mass (100 mass %) of the molybdenum carbide is 6% or more.
Absstract of: US20260295515A1
This dehumidification apparatus is for dehumidifying a hydrogen gas that is produced by a hydrogen production device, the dehumidification apparatus comprising: a dehumidifier that includes an adsorption tower, inside of which there is provided an adsorbent that is capable of adsorbing moisture contained in the hydrogen gas; an inlet line for introducing the hydrogen gas from the hydrogen production device into the dehumidifier; an inlet valve that is provided to the inlet line; an outlet line for discharging the hydrogen gas that is dehumidified by the dehumidifier out from the dehumidifier; an outlet valve that is provided to the outlet line; and a control device that is configured to adjust the opening degree of the inlet valve and the opening degree of the outlet valve on the basis of the pressure within the adsorption tower during activation of the dehumidification apparatus.
Absstract of: US20260297776A1
A method for controlling a facility containing electrolysers that are fluidically in parallel, including controlling the electrolysers in such a way as to seek to increase the uniformity of the individual loads on the electrolysers in operation. As s a result, specific electrical consumption of the facility for a predetermined total production load or for an electrical power available to power the facility is provided.
Absstract of: US20260297766A1
0000 An object of the present invention is to provide an electrolyte membrane having a good joining property with a catalyst layer. The present invention mainly relates to an electrolyte membrane including a layer (A) containing a polymer electrolyte, and a layer (B) existing on at least one face of the layer (A), wherein a particle concentration (Y1) in an interface region of the layer (B), on the layer (A) side, is higher than a particle concentration (Y2) in another interface region of the layer (B), on the opposite side to the layer (A). The particle concentration (Y1) and the particle concentration (Y2) are ratios of the mass of particles existing in the interface region to the total mass of solids existing in the interface region.
Absstract of: US20260297772A1
A semiconductor catalyst is provided, which exhibits an effect of accelerating a reduction reaction by visible light irradiation and is excellent in durability. The semiconductor catalyst of the present disclosure includes thin film containing nitrogen-containing diamond particles in a plane direction and a height direction. The semiconductor catalyst can be produced by, for example, fixing, on a substrate having a positive or negative charge, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the nitrogen-containing diamond particles being opposite to that of the substrate, and laminating, on the fixed nitrogen-containing diamond particles, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the laminated nitrogen-containing diamond particles being opposite to that of the fixed nitrogen-containing diamond particles. The step of laminating is performed at least once after the step of fixing.
Absstract of: US20260297763A1
0000 A method for producing hydrogen, where feed water is subjected to electrolysis with a cathode gas being obtained, wherein the cathode gas contains hydrogen, oxygen and some of the feed water, wherein a process gas flow (102) is formed using at least some of the cathode gas, where the process gas flow contains at least some of the hydrogen, oxygen and feed water contained in the cathode gas, and where, in the process gas flow, at least some of the oxygen is subjected to an oxidative catalytic reaction with some of the hydrogen to form oxidation water, and where at least some of the feed water and the oxidation water in the process gas flow are removed from the process gas flow in a water removal process.
Absstract of: US20260298411A1
0000 A method for storing hydrogen in a plurality of subsea storages in a system. The system comprising an electrolyser source for producing hydrogen at a source pressure; a downstream compressor for compressing the hydrogen from the source pressure to a compressed higher pressure; and a plurality of storages, each for storing compressed hydrogen at the compressed higher pressure and each being subsea. The method comprising at least the steps of: producing hydrogen by the electrolyser source at the source pressure; passing the hydrogen to the plurality of storages through a bypass line around the compressor; and storing the hydrogen in at least one of the plurality of storages at a first pressure below the compressed higher pressure. A system for storing hydrogen in a plurality of subsea storages is also disclosed.
Absstract of: US20260297781A1
A system for synthesizing ammonia includes a reactor including an inlet portion, an outlet portion, and an energy source arranged to deliver energy to one or more reactants receivable through the inlet portion of the reactor, and the energy source activatable to reduce nitrogen to ammonia in the presence of hydrogen, at least one hydrogen pump in fluid communication with the outlet portion of the reactor, each hydrogen pump including at least one electrochemical cell, and a recirculation circuit in fluid communication between the at least one hydrogen pump and the inlet portion of the reactor and configured to direct a respective hydrogen stream from each hydrogen pump to the inlet portion of the reactor.
Absstract of: US20260297773A1
0000 The present invention relates to ternary metal(s) hydroxide (M1-M2-Ni)(OH)<2> composite supported on nickel foam (NF) having nanoflower arrays structure, which acts as a self-standing bifunctional electrocatalyst for cathode as well as anode (both electrodes) for water electrolysis/splitting. Further, the present invention provides hydrothermal process for the preparation of said bi-functional electrocatalyst. The bifunctional catalyst disclosed herein is useful in performing water electrolysis reactions to generate hydrogen and oxygen.
Absstract of: US20260301985A1
Disclosed are galvanic cells and methods for treating a molten salt by use of the galvanic cells. The galvanic cell can provide anti-corrosion treatment and improved corrosion resistance via electrochemical and chemical reactions involving a corrosive impurity in a molten salt. Reaction products of the chemical and electrochemical reactions include hydrogen gas that can carry hydrogen isotopes evolved in the molten salt. The system can also include removal of the hydrogen gas from the molten salt and separation and recovery of tritium contained therein.
Absstract of: US20260297779A1
There is provided a device for producing an electrolyte for producing a fluorine gas having a low vapor pressure of hydrogen fluoride. An electrolyte production device (1) includes an anode (3) having a nickel electrode (31) and a carbon electrode (32); a cathode having a metal electrode (4); and an electrolyte production tank (2) in which a liquid to be treated (8), containing potassium fluoride and hydrogen fluoride, is capable of being accommodated and the liquid to be treated (8) is subjected to an electrolytic treatment using the anode (3) and the cathode (4), in which the electrolyte production device (1) has a structure with which a direct current is capable of being applied for energization through both the nickel electrode (31) and the carbon electrode (32).
Absstract of: AU2025235851A1
A method for revamp and decarbonizing an ammonia or urea plant comprising an existing primary and secondary steam reforming unit for the preparation of ammonia synthesis gas and an ammonia synthesis loop using an electrolysis unit to produce hydrogen and oxygen.
Nº publicación: WO2026203649A1 01/10/2026
Applicant:
TOHO TITANIUM CO LTD [JP]
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Absstract of: WO2026203649A1
The present invention relates to a titanium porous body which is in a sheet form having a thickness of not more than 700 μm, which has a porosity of 30-60%, and which has a bubble point diameter of not more than 20 μm, wherein, among two main surfaces of the titanium porous body, the main surface having the higher surface roughness Rz has a surface roughness Rz of not less than 5 μm.
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