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461
resultados
Última actualización
17/01/2026 [07:00:00]
Resultados 200 a 225 de 461
Resumen de: WO2025251905A1
The present application relates to an anode electrode for a PEM electrolyzer, and a method for producing hydrogen. An anode electrode for a PEM electrolyzer uses an aqueous solution containing perchlorate, a substrate of the anode electrode comprising, in terms of mass percentage, 22%≤Ni<80%, 95%≤Ni+Fe, and unavoidable impurities, and the aqueous solution containing perchlorate at a concentration of 0.01 mol/L to 1 mol/L; the anode electrode is configured such that, during use of the PEM electrolyzer, at least one surface of the substrate is exposed to the aqueous solution, so that when an anodic polarization potential of 1.4-2.5 VSHE is applied to the anode electrode, a corrosion-resistant passive film can be formed on at least one surface, the passive film comprising nickel oxide and iron oxide, which together account for at least 90% of the passive film in terms of mass percentage. The present application also discloses a PEM electrolyzer, and a steel plate capable of being used to manufacture an anode electrode for a PEM electrolyzer, as well as a use thereof.
Resumen de: WO2025251148A1
Electrocatalysts for anion exchange membrane water electrolysis include nickel and cobalt. In some examples, electrocatalysts can include manganese, can have partial substitution of oxygen by phosphorus, and/or can include molybdenum, cerium and/or yttrium. In some examples, electrocatalysts can have a composition of Ni0.35Co0.65Ox, Ni0.31Co0.69Ox, Ni0.38Co0.62Ox, Ni0.47Co0.53Ox, Ni0.25Co0.57Mn0.17Ox, Ni0.35Co0.65P1.3Ox, Ni0.25Co0.57Mn0.17P1.1Ox, or Ni0.38Co0.36Mo0.09Ce0.1Y0.07Ox. In some examples, electrocatalysts can take the form of a powder or an ink. In some examples, electrocatalysts can be prepared by an oxalic acid precipitation method, a methyl imidazole precipitation method, or a citric acid sol-gel method.
Resumen de: US2025376399A1
The present invention regards an improved water treatment system and a water treatment process for producing an oxygen depleted, dried process steam suitable for use in high-temperature solid oxide electrolysis. The system and the process has been simplified compared to prior art systems and processes.
Resumen de: US2025376422A1
Sulfur-incorporated bismuth ferrite nanoparticles (SBFNPs) contain Bi2Fe4O9 nanoparticles doped with Fe(0) and Bi(0) and sulfur in an amount of 0.5 to 5 percent by weight. At least a portion of bismuth is bonded to at least a portion of the sulfur and at least a portion of iron is bonded to at least a portion of the sulfur. The bismuth ferrite nanoparticles have a longest dimension of 1 to 50 nm. A method of photocatalytic degradation of dyes and a method of hydrogen generation and storage using the nanoparticles.
Resumen de: US2025376776A1
Embodiments of the present disclosure relate to a core-shell structure, a preparing method of the same, and an electrode including the same, and the core-shell structure may include a core comprising a perovskite nanocrystal; and a shell surrounding the core, thereby exhibiting improved optical, electrical, and catalytic properties and ensuring stable operating stability, thereby exhibiting excellent photoelectrochemical activity, compared to commercial catalysts such as conventional transition metal oxides.
Resumen de: US2025376771A1
Systems and methods for producing hydrogen (H2) from a desalination plant are described. The method can include desalinating saline water using energy produced by a gas turbine. Producing by splitting the desalinated water with an electrolyzer. The electrolyzer uses energy produced from the gas turbine to split the desalinated water. CO2 can be captured from the gas turbine exhaust. Produced H2 and captured CO2 can be supplied to a reactor. In the reactor, a first product stream that includes H2 and optionally methane (CH4) can be obtained.
Resumen de: US2025376627A1
Systems and methods for de-watering of hydrocarbon production wells which uses electrolysis of a water fraction in downhole fluids and a reaction chamber at a distal end of a hydrocarbon production well to generate hydrogen and oxygen gases, to improve hydrocarbon inflow into the production well. The produced hydrogen and/or oxygen gases may be used in combination with hydrocarbons produced by the production well to fuel a gas turbine at surface to generate electrical power for the electrolysis, or such gases may be recombined at surface to provide purified water. A first gas collection means surrounds a region above or proximate an anode for collecting the oxygen gas, and a first production tubing extends therefrom to surface. Means are further provided for collecting and producing hydrogen gas at a cathode, either in combination with produced hydrocarbons from the production well, or separately therefrom.
Resumen de: US2025376772A1
A proton-conducting solid oxide electrolyzer includes a first electrode configured to produce oxygen gas from steam, a second electrode configured to produce hydrogen gas from the steam, and a proton-conducting solid oxide electrolyte between the first electrode and the second electrode. The first electrode includes barium zirconate of formula BaZrO3−δ doped with at least one transition metal and substantially free of a rare earth element, wherein δ is an oxygen deficit, and wherein the at least one transition metal comprises cobalt. Also disclosed are an electrode for the proton-conducting solid oxide electrolyzer, and a method of producing hydrogen gas.
Resumen de: AU2024305642A1
The invention relates to a method (100) for producing hydrogen and/or oxygen by means of electrolysis, in which an electrolysis unit (10) is supplied with a direct current (2) which is provided from an alternating current (1) using a rectifier (20), wherein the electrolysis unit (10) is supplied with water using a water circuit (110). The rectifier (20) is cooled using a cooling water which is provided using a sub-flow (5) of water being conducted in the water circuit (110) and/or water supplied to the water circuit. The invention likewise relates to a corresponding system.
Resumen de: US2025376778A1
A control system for a hydrogen production facility is a control system for controlling operation of a hydrogen production facility including at least one water electrolyzer. The control system includes: a required hydrogen flow rate acquisition part configured to acquire a required hydrogen flow rate that is a hydrogen generation amount required for the water electrolyzer; a conversion part configured to convert the required hydrogen flow rate into a current required to generate hydrogen at the required hydrogen flow rate at the water electrolyzer and acquire a provisional required current; and a first correction part configured to acquire a current set value to be provided to the water electrolyzer by correcting the provisional required current using a first correction factor based on a difference between the required hydrogen flow rate and an actual hydrogen flow rate that is a hydrogen generation amount generated actually at the water electrolyzer.
Resumen de: DE102024205219A1
Die Erfindung betrifft einen Elektrolyseur für die Erzeugung von Wasserstoff mittels Elektrolyse, umfassend eine Vielzahl von Elektrolysezellen (1), die in Elektrolysestapel aufgeteilt sind, wobei jede Elektrolysezelle (1) eine ionenselektive Membran mit einem Rekombinationskatalysator (3) aufweist, auf der beidseitig Elektroden (4, 5) angeordnet sind, an welche im Betrieb eine äußere Spannung angelegt wird, wobei anodenseitig eine erste Wasser-Zuleitung (6) zum Zuführen von Wasser zu einem Anodenraum (8) vorgesehen ist und eine Sauerstoff-Produktleitung (10) zum Abführen des erzeugten Sauerstoffs (O2) aus dem Anodenraum (8) angeschlossen ist und kathodenseitig eine Wasserstoff-Produktleitung (11) zum Abführen des erzeugten Wasserstoffs (H2) aus einem Kathodenraum (9) vorgesehen ist, umfassend weiterhin ein Kontrollsystem (12) zum Steuern des Betriebs der Elektrolysestapel, wobei das Kontrollsystem (12) dafür eingerichtet ist, einen im Wesentlichen gleichbleibenden Druck (pK) im Kathodenraum (9) einzustellen und einen Druck (pA) im Anodenraum (8) als Funktion einer Wasserstoffkonzentration (CH2) im Sauerstoff zu regeln. Die Erfindung betrifft ferner ein Verfahren zum Betrieb eines Elektrolyseurs.
Resumen de: WO2025252730A1
The present invention relates to a method for supplying a compressed combined gas stream comprising hydrogen and carbon dioxide for at least one downstream process, preferably for production of alcohols (e.g. methanol) or carbon fuels. More specifically, disclosed is a method wherein the hydrogen gas stream is dosed with a carbon dioxide gas stream and the combined gas stream is compressed in a multistage compression system.
Resumen de: AU2024214359A1
Feedwater preparation system in a water electrolyser adapted to produce hydrogen and oxygen in one or more pressurised electrolyser stacks (2) using alkaline water and comprising a product gas conditioning system that has a safety valve out-blow material stream pipe (11) which is connected to a feedwater vessel (9), and/or has a depressurisation stream pipe (31) from a gas cleaning vessel which is connected to the feedwater vessel (9).
Resumen de: EP4660153A1
The water electrolysis system is a water electrolysis system using an alkaline aqueous solution as an electrolytic solution, the water electrolysis system including a cell stack to which the electrolytic solution is supplied; a storage section in which the electrolytic solution is stored; an annular flow path connecting the storage section and the cell stack to each other; a pump section provided on the annular flow path; a scale removal section that is provided on the annular flow path and is capable of removing a scale included in the electrolytic solution; and a scale component removal section capable of removing scale components dissolved in the electrolytic solution at or below a saturation concentration.
Resumen de: EP4660350A1
The invention is aimed to create a method for producing hydrogen and oxygen from water and aqueous solutions, which ensures increased productivity and reduced energy consumption. In the method, electrical energy in the process of water electrolysis is used in the plasma electrolytic process mode between the anode and cathode in water with the removal of hydrogen from the cathode region and oxygen from the anode region, while the water is simultaneously subjected to acoustic impact induced by a piezoelectric emitter, wherein the acoustic impact propagation vector is perpendicular to the electric field vector, the obtained gaseous hydrogen and oxygen are captured separately by electromagnetic separators with oppositely directed magnetic fields. The device for producing hydrogen and oxygen from water and aqueous solutions consists of a reactor in the form of a container with water, in the reactor there is a piezo-acoustic emitter, the power source is connected to the anode and cathode, in which the thermionic insert is made of tungsten, zirconium or hafnium, and the branch pipes of electromagnetic output separators.
Resumen de: KR20250173328A
본 발명은 수소 및 산소 발생용 촉매와 이의 제조방법에 관한 것으로, 몰리브덴 및 니켈을 동시에 포함하는 전이금속으로부터 제조된 전이금속 화합물을 포함하여 이종접합 구조를 가지는 수소 및 산소 발생용 촉매를 제조하여 수소 발생 반응(HER)과 산소발생반응(OER)을 모두 촉진하며 수소 생산을 위한 수전해 효율을 향상한다.
Resumen de: WO2025248902A1
A method for electrolyzing water according to the present invention is a method for splitting water with the use of a PEM water electrolysis device which is provided with a cell in which a cathode, an electrolyte membrane, a porous transport layer, and an anode are stacked, wherein: the porous transport layer has a titanium porous body; in the electrolyte membrane-side surface of the titanium porous body, the average value of the areas of pores that open to the surface is 5 μm2 to 45 μm2 inclusive; the standard deviation value of the areas of the pores is 90 μm2 or less; the number of the pores that are present within a rectangular region that has an area of 22,000 μm2 and an aspect ratio of 4:3 is 120 or more; and the pressure applied in the stacking direction of the cathode, the electrolyte membrane, the porous transport layer, and the anode at the time of assembling the cell is set to 6 MPa or more.
Resumen de: WO2024162842A1
A method of generating hydrogen and oxygen from a liquid feed stream through an integrated system of forward osmosis and electrolysis, wherein the method comprising the steps of feeding water into an electrolyte solution by means of forward osmosis and applying a voltage across the electrolyte solution to generate hydrogen and oxygen, characterized in that the electrolyte solution comprising an electrolyte, an ionic liquid and a solvent, wherein the electrolyte is used in an amount ranging between 1 wt% to 10 wt% of the electrolyte solution, wherein the ionic liquid is used in an amount ranging between 1 wt% to 5 wt% of the electrolyte solution and wherein the solvent is used in an amount ranging between 75 wt% to 99 wt% of the electrolyte solution.
Resumen de: WO2024162841A1
An electrolyte solution comprising an electrolyte, wherein the electrolyte is used in an amount ranging between 1 wt% to 10 wt% of the electrolyte solution; an ionic liquid, wherein the ionic liquid is used in an amount ranging between 1 wt% to 5 wt% of the electrolyte solution; and a solvent, wherein the solvent is used in an amount ranging between 75 wt% to 99 wt% of the electrolyte solution.
Resumen de: EP4660131A1
The subject of the invention is a hydrogen burner using water thermolysis, incorporating a hydrogen combustion chamber (1) containing heating nozzles (3) connected to a fuel transport duct (4), with at least one magneto (6) installed in its vicinity. This burner is characterised in that the chamber (1) contains water (2) in which a duct (6) with heat exchange medium is immersed, and the heating nozzles (3) are dir3ected towards the table of that water (2). The chamber (1) is made of heat-resistant steel and coated with a thermal insulation layer (5) on the outside. Water (2) in the chamber (1) contains transition metals acting as catalysts for water thermolysis, particularly such as cerium, nickel, molybdenum, or chromium.
Resumen de: US2025369130A1
The present disclosure provides a water electrolysis membrane electrode, a method for preparing the water electrolysis membrane electrode, and a water electrolyzer applying the water electrolysis membrane electrode. The water electrolysis membrane electrode includes a cathode gas diffusion layer, a cathode catalytic layer, an anion exchange membrane, a hydrophobic anode catalytic layer, and an anode gas diffusion layer that are stacked in sequence. Raw materials for preparing the hydrophobic anode catalytic layer include an anode catalyst, a hydrophobic material, and an anode ionomer. A mass ratio of the anode catalyst, the hydrophobic material, and the anode ionomer is 10:1-3:1-3. A porosity of the hydrophobic anode catalytic layer is 10%-40%.
Resumen de: MX2025008939A
The present disclosure relates to methods of sequestering CO<sub>2 </sub>comprising a first cathodic chamber, performing a first alkaline process, a first anodic chamber, performing a first acidic process, and dechlorinating a solution by contacting the solution with a dechlorinating agent. Also provided herein are systems comprising a first cathodic chamber and a first anodic chamber.
Resumen de: US2024401520A1
The present disclosure relates to a gas turbine plant which decomposes ammonia and supplies it as fuel to a combustor of the gas turbine. The gas turbine plant supplies sufficient heat to the ammonia in order to thermally decompose the ammonia effectively, and separates the residual ammonia present in the decomposition gas and supplies it to a combustor of the gas turbine.
Resumen de: AU2024249844A1
A method for thermal or thermochemical conversion of ammonia or methanol feedstocks into hydrogen (gas) in a related feedstock conversion facility (1000) is provided. The method comprises generating heated fluidic medium by at least one rotary apparatus (100), supplying a stream of thus generated heated fluidic medium into the feedstock conversion facility (1000), and operating said at least one rotary apparatus (100) and said feedstock conversion facility (1000) to carry out thermal or thermochemical conversion of the ammonia or methanol feedstocks into hydrogen at temperatures essentially equal to or exceeding about 500 degrees Celsius (°C). Facility (1000, 1000A) for production of hydrogen from ammonia or methanol feedstocks is further provided.
Nº publicación: KR20250172700A 09/12/2025
Solicitante:
아그파게바에르트엔브이
Resumen de: AU2024407460A1
A catalyst coated separator for alkaline water electrolysis (1) comprising a porous support (100) and on at least side of the support, in order: - an optional porous polymer layer (200), - a non-porous alkali-stable polymer layer (300), and - a catalyst layer (400).
BOPI
Sede Electrónica
