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759
resultados
Última actualización
25/09/2025 [07:00:00]
Resultados 25 a 50 de 759
Resumen de: WO2025191937A1
In the present invention, a third catalyst that promotes the bonding of hydrogen and oxygen is disposed on the anode side of an electrolyte membrane (51). Even when hydrogen generated on the cathode side passes through the electrolyte membrane (51) and enters the anode side, the action of the third catalyst enables said hydrogen to bond with oxygen generated on the anode side, thereby converting into water. This makes it possible to reduce the concentration of hydrogen in the gas discharged from the anode side. Particles of the third catalyst have a hollow structure with a cavity therein. Therefore, the amount of the third catalyst used can be reduced while maintaining the surface area of the particles. Additionally, because the particles of the third catalyst have an opening, the movement of water, hydrogen, and oxygen at the anode side is less likely to be inhibited. Accordingly, reductions in the reaction rate of electrolysis on the anode side can be suppressed.
Resumen de: WO2025190141A1
The present invention belongs to the technical field of water electrolysis for hydrogen production, and particularly relates to iron-nickel co-doped ammonium phosphomolybdate, a preparation method therefor, and the use thereof. The iron-nickel co-doped ammonium phosphomolybdate uses a molybdate, a phosphate, a ferric salt and a nickel salt as starting materials, and is prepared under a mild condition of 40-80°C by means of adjusting the proportion of the raw materials and the pH value of a solution, the obtained iron-nickel co-doped ammonium phosphomolybdate being used to manufacture an oxygen evolution electrode to be applied to water electrolysis for hydrogen production. Linear sweep voltammetry in a 0.5mol/L H2SO4 solution shows that the iron-nickel co-doped ammonium phosphomolybdate of the present invention exhibits an oxygen evolution overpotential of only 210 mV at 10mA/cm2, which is lower than the oxygen evolution overpotential 370mV of noble metal iridium oxide, the oxygen evolution Tafel slope in an acidic medium of the iron-nickel co-doped ammonium phosphomolybdate is smaller than the oxygen evolution Tafel slope of the noble metal IrO2, and the alternating-current impedance reaction resistance is lower than the oxygen evolution reaction resistance of the noble metal. The electrochemical characteristics enable the iron-nickel co-doped ammonium phosphomolybdate material to achieve obvious technical and cost advantages during PEM water electrolysis for hydrogen produ
Resumen de: WO2025189910A1
A water treatment method and a water treatment system, which solve the technical problem of long process and high energy consumption of hydrogen production from wastewater. The water treatment method comprises steps: pretreating wastewater to obtain an electrolyte of which the solid content, the salt content and the pH meet requirements for electrolysis; and introducing into an electrolytic cell of an electrolysis-based hydrogen production device the electrolyte to be electrolyzed, so as to decompose organic substances in the electrolyte and generate hydrogen. The water treatment system comprises a pretreatment unit used for pretreating wastewater to obtain an electrolyte of which the solid content, the salt content and the pH that meet requirements for electrolysis; and an electrolysis-based hydrogen production unit used for electrolyzing the electrolyte to decompose organic substances in the electrolyte and to generate hydrogen. The electrolysis-based hydrogen production unit comprises an electrolysis-based hydrogen production device. The electrolysis-based hydrogen production device comprises an electrolytic cell housing (11), an anode (12) and a cathode (13). The cathode (13) is made of a sintered metal porous material of which metal elements consist of Ni and V, the metal elements mainly being present as intermetallic compounds.
Resumen de: WO2025189237A1
The invention relates to a catalyst for the hydrogen evolution reaction (HER) and methods for using the catalyst in a water-splitting process. A hydrogen evolution reaction (HER) electrocatalyst, and a method and use for preparing a HER electrocatalyst are disclosed. The method comprises the step of forming a two-dimensional electron gas (2DEG) interface at a heterojunction of at least one of two or more alternating layers of a first complex oxide and a second complex oxide, wherein the or each 2DEG interface exhibits a current density, corresponding to an intrinsic hydrogen evolution reaction (HER) activity that renders the 2DEG interface(s) suitable as an HER electrocatalyst for producing hydrogen (H2) from a water-based electrolyte by water electrolysis.
Resumen de: US2025290208A1
A hydrogen and oxygen gas generation system is provided. The system includes a vessel containing a volume of water and a plurality of electrically conductive electrodes positioned in the volume of water. An ultrasonic unit is positioned in the volume of water and configured to emit sonic waves that inject pulsed energy into the water. The ultrasonic unit can emit square waves and vary both frequency and timing to create complex wave patterns. A baffle structure is positioned between the plurality of electrodes and the ultrasonic unit. The baffle structure prevents direct vertical impact of sonic waves on the electrodes while allowing waves to assist in weakening molecular bonds in the water. The system includes a gas collection unit with separate chambers for collecting hydrogen gas from cathodes and oxygen gas from anodes.
Resumen de: US2025290207A1
A water splitting system includes a hydrogen production chamber including a hydrogen production port, an oxygen production chamber including an oxygen collection port, an ion exchange membrane coupling the hydrogen production chamber and the oxygen production chamber, and a photocatalytic structure including a first catalytic portion disposed in the hydrogen production chamber and a second catalytic portion disposed in the oxygen production chamber. The first catalytic portion is configured for production of hydrogen via the hydrogen production port. The second catalytic portion is configured for production of oxygen via the oxygen production port.
Resumen de: US2025290629A1
There is provided a system for consistent production of a low-or zero-emission flame comprising an electrolyser, a power assembly, a burner element, and a gas flow control system. There is also provided a device for consistent production of a low-or zero-emission flame using the disclosed systems. There is also provided a method for consistent production of a low-or zero-emission flame. There is further provided a kit for assembling, modifying or retrofitting an apparatus to permit consistent production of low-or zero-emission flame using the disclosed systems and methods.
Resumen de: US2025289715A1
Methods, solutions and material systems for increasing the heat yield for a substance which reacts with water to produce hydrogen gas and heat are disclosed herein. The methods include providing a substance which reacts with water to produce hydrogen gas and heat, providing an aqueous solution comprising an oxidizer and an optional salt, and reacting the substance and the composition to generate hydrogen and heat.
Resumen de: WO2025190768A1
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.
Resumen de: EP4617405A1
The present invention provides a gas-liquid diffuser for hydrogen production by alkaline water electrolysis. The gas-liquid diffuser is arranged between an electrode plate and a diaphragm to form a gas-liquid diffusion layer, is made of a woven web or a mesh plate, and is formed to have a plurality of flow channels alternately arranged on both sides of the gas-liquid diffuser; and in a direction perpendicular to the flow channels, the cross section of the gas-liquid diffuser is in a wavy shape formed by the plurality of flow channels. By using the gas-liquid diffuser, contact resistance is effectively reduced, electrolysis efficiency is improved, stress concentration at a contact position is lowered, diaphragm is prevented from being crushed, flow resistance of a fluid is reduced, formation of a retention and backflow in an internal flow field is avoided, the risk of hydrogen and oxygen interpenetration is lowered, and it is useful to increase the contact area between an electrode surface and an alkaline electrolyte.
Resumen de: EP4618204A2
Method of manufacturing of a membrane with surface fiber structure, in particular for use in an electrolyzer or fuel cell, by inserting the polymer membrane into the vacuum chamber equipped with a magnetron sputtering system with a cerium oxide target in which an atmosphere of O2 and inert gas is formed and igniting the plasma which leads to simultaneous plasma etching of the membrane surface and deposition of cerium oxide onto the surface of etched membrane resulting in formation of fibers. The membrane is made of polymer and on at least one of its sides features porous surface made of fibers, the cross-sectional dimensions of which are lower than their length and which are integral and inseparable part of membrane body.
Resumen de: EP4617231A1
A hydrogen absorption/discharge device includes an absorption/discharge part, a first electrode located at a first end portion side of the absorption/discharge part, a second electrode located at a second end portion side of the absorption/discharge part, and buffer layers located respectively between the first electrode and the first end portion of the absorption/discharge part and between the second electrode and the second end portion of the absorption/discharge part; the absorption/discharge part includes a material that allows permeation of hydrogen and hydride-ion conduction; and the second end portion faces the first end portion.
Resumen de: AU2023379054A1
2. The invention relates to a filter for treating process fluid such as that which in particular arises during hydrogen electrolysis, preferably for separating hydrogen and/or oxygen from process water, having a first filter element (10) and a second filter element (12), which encloses the first filter element (10) with the formation of a flow space (14) with a predefinable radial spacing, wherein each filter element (10, 12) has a filter medium (16, 18) through which the process fluid can flow in a flow-through direction (24) from the outside to the inside or preferably from the inside to the outside, wherein, seen in the flow-through direction (24), the one filter medium (16) forms a first degassing stage, which is used to enlarge gas bubbles through coalescence and to remove same from the process fluid through separation caused by buoyancy, and the subsequent further filter medium (18) forms a second degassing stage, which is used to remove very finely distributed gas bubbles remaining in the process fluid, again through coalescence and the separation of same through rising caused by buoyancy.
Resumen de: GB2639297A
An apparatus for the photolysis of a solid target material comprising a chamber arranged to receive the target material, at least one emitter arranged to emit an electromagnetic radiation signal at or towards the target material, an electric field generator configured to generate an electric field within the chamber and a controller configured to control the electric field such that the EM radiation signal emitted is incident upon the target. Preferably the chamber is a vacuum chamber. Preferably the electric field strength is targeted on the excited bonds present in the target material. Preferably there are a plurality of electromagnetic radiation emitters, more preferably there is a radial array of emitters, alternatively the plurality of emitters may be arranged about the circumference of the chamber.
Resumen de: EP4618104A2
A solid or liquid fuel to plasma to electricity power source that provides at least one of electrical and thermal power comprising (i) at least one reaction cell for the catalysis of atomic hydrogen to form hydrinos, (ii) a chemical feel mixture comprising at least two components chosen from: a source of H<sub>2</sub>O catalyst or H<sub>2</sub>O catalyst; a source of atomic hydrogen or atomic hydrogen; reactants to form the source of H<sub>2</sub>O catalyst or H<sub>2</sub>O catalyst and a source of atomic hydrogen or atomic hydrogen; one or more reactants to initiate the catalysis of atomic hydrogen; and a material to cause the feel to be highly conductive, (iii) a fuel injection system such as a railgun shot injector, (iv) at least one set of electrodes that confine the fuel and an electrical power source that provides repetitive short bursts of low-voltage, high-current electrical energy to initiate rapid kinetics of the hydrino reaction and an energy gain due to forming hydrinos to form a brilliant-light emitting plasma, (v) a product recovery system such as at least one of an augmented plasma railgun recovery system and a gravity recovery system, (vi) a fuel pelletizer or shot maker comprising a smelter, a source of hydrogen and a source of H<sub>2</sub>O, a dripper and a water bath to form fuel pellets or shot, and an agitator to teed shot into the injector, and (vii) a power converter capable of converting the
Resumen de: MX2025009748A
A hydrogen generating cell comprising an input electrode plate pair, an output electrode plate pair, an additional X plate electrode positioned adjacent the output electrode plate pair, and a plurality of intermediate electrode plates disposed between the input and output electrode plate pairs. A plasma torch is spaced apart from and inductively coupled to the input electrode plate pair. A pulsed DC voltage is applied to the plasma torch and X-plate, while a lower voltage pulsed DC voltage is applied to the input and output electrode plate pair to cause generation of hydrogen gas from an aqueous solution in which the cell is immersed.
Resumen de: AT528039A1
Die vorliegende Erfindung betrifft eine Elektrolysevorrichtung (100) für eine Erzeugung eines Brennstoffs (B) in Elektrolysezellen wenigstens eines Elektrolysestapels (110), aufweisend einen Luftzuführabschnitt (122) zur Zufuhr von Zuluft (ZL) zu einer Luftseite (120) des Elektrolysestapels (110) und einen Luftabführabschnitt (124) zur Abfuhr von Abluft (AL) von der Luftseite (120) des Elektrolysestapels (110), weiter aufweisend einen Wasserzuführabschnitt (132) zur Zufuhr von Wasser (W) zu einer Brennstoffseite (130) des Elektrolysestapels (110) und einen Brennstoffabführabschnitt (134) zur Abfuhr von Brennstoffgemisch (BG), aufweisend Brennstoff (B) und Wasser (W), von der Brennstoffseite (130) des Elektrolysestapels (110), wobei der Brennstoffabführabschnitt (134) eine Kondensatorvorrichtung (140) aufweist für eine Kühlung des Brennstoffgemischs (BG) unter eine Kondensationstemperatur von Wasser (W), für ein Kondensieren und Abtrennen des Wassers (W) von dem Brennstoff (B), wobei im Brennstoffabführabschnitt (134) stromaufwärts der Kondensatorvorrichtung (140) ein Brennstoffgemisch-Zuluft-Wärmetauscher (150) in wärmeübertragendem Kontakt mit dem Luftzuführabschnitt (122) angeordnet ist für eine Übertragung von Wärme vom Brennstoffgemisch (BG) in die Zuluft (ZL).
Resumen de: WO2025186621A1
An apparatus, a system and a method for generating and storing hydrogen gas are disclosed. In one arrangement, an apparatus comprises a wind turbine, a solar array comprising at least one solar panel, an electrolyser unit having an electrolyser peak capacity and powered by the wind turbine and/or the solar array, and a pipeline configured to receive and store hydrogen from the electrolyser unit and having a length at least equal to 500 meters per 10MW of the electrolyser peak capacity. In another arrangement a method comprises generating energy at the wind turbine and the solar array comprising at least one solar panel, receiving the generated energy at the electrolyser unit, generating hydrogen gas with the generated energy by the electrolyser unit, and receiving and storing the generated hydrogen gas in a pipeline.
Resumen de: WO2025186440A1
The present invention relates to electrical energy storage apparatus, such as rechargeable electrical energy storage devices such as batteries. We describe an electrochemical cell comprising: a chamber containing an electrolyte and a porous membrane dividing the chamber into a first compartment and a second compartment. The cell includes a first electrode, associated with the first compartment; and a second electrode, associated with the second compartment. The first compartment contains a first triphasic gas storage material in contact with the first electrode; and the second compartment contains a second triphasic gas storage material in contact with the second electrode. The first compartment further contains hydrogen gas, and the second compartment contains oxygen gas. In preferred examples, the first and/or the second triphasic gas storage material is a material selected from a polymer of intrinsic microporosity, a metal-organic framework, a zeolite or a porous silicate.
Resumen de: US2025283230A1
A method for producing an electrolysis cell includes a joining step of joining a frame portion of a protective sheet member provided between a membrane electrode assembly and a fluid-supply-side current collector to a portion of the membrane electrode assembly on the outer side of the covered portion where an electrolyte membrane is covered with an electrode catalyst layer to form a joint, and a joined body stacking step of stacking the membrane electrode assembly and the protective sheet member joined together on the fluid-supply-side current collector with the protective sheet member facing the fluid-supply-side current collector.
Resumen de: WO2025189054A1
The disclosure relates to an electrolysis cell for catalyst-free electrolysis of water molecules from a humid atmosphere to produce hydrogen gas comprising an electrically conductive carbon fiber gas diffusion anode and an electrically conductive carbon fiber gas diffusion cathode. A graphene oxide membrane or a graphdiyne oxide membrane is disposed between the electrically conductive carbon fiber gas diffusion anode and electrically conductive carbon fiber gas diffusion cathode. The temperature of the cell can be varied to increase water molecule adsorption (condensation), dissociation rate, and proton current, hydrogen evolution reaction rate, and hydrogen production. In one practice, humid air is contacted against a surface of the carbon fiber gas diffusion anode that is cooled down to the dew point or slightly lower than the dew point temperature of the humid air, which surface that is opposite the membrane.
Resumen de: WO2025186606A1
An integrated system for power generation and method thereof is disclosed, for generating and utilizing hydrogen gas or oxyhydrogen gas for enhancing fuel efficiency, thereby providing energy efficient power generation. An electricity generation system (402) generates and store an electric current in a battery for processing a gas generator (100) i.e., hydrogen (H2) or oxyhydrogen (HHO) gas generator. In the gas generator (100) an Automatic Transmit Power Control power supply (102) stabilizes power transmission, providing constant current by a current source (104) to an electrolysis setup (106) for generating hydrogen (H2) gas or oxyhydrogen (HHO) gas. A thermostat regulates temperature, and a demister separates steam from the generated gas. A burner (200) combusts the generated gas. A steam boiler (302) converts water into high pressure steam using the generated gas. A steam turbine (304) converts the high-pressure steam into mechanical energy. An electricity generator (306) converts mechanical energy into electrical energy.
Resumen de: WO2025185857A2
Disclosed is a process for producing hydrogen and a reactor used for this process. The reactor contains a first reaction space for oxidizing metal fuel selected from silicon, magnesium, iron, titanium, zinc, aluminum or alloy containing two or more of these metals with an oxidant and a second reaction space separated from the first reaction space for dehydrogenating hydrogen-containing chemicals into hydrogen and dehydrogenated products. The reactor contains a plurality of feed lines axially and/or radially and/or tangentially passing through the reactor jacket for feeding the inlet zone of the first reaction space with inert gas and/or metal fuel and/or oxidant as a result of which a vortex is formed at the interior of the reactor jacket, which vortex moves towards the direction of the outlet zone of the first reaction space or the reactor contains at least one electrolysis cell that is placed partially or in total within the first reaction space or is placed downstream a tube located within the first reaction space for performing electrolysis of the hot hydrogen-containing chemical within said electrolysis cell. With the reactor and the process of this invention hydrogen is generated from hydrogen-containing chemicals, such as water and metal fuel is used to generate thermal energy to promote the dehydrogenation reaction.
Resumen de: US2025214034A1
Hydrogen gas purifier electrochemical cells, systems for purifying hydrogen gas, and methods for purifying hydrogen gas are provided. The cells, systems, and methods employ double membrane electrode (DMEA) electrochemical cells that enhance purification while avoiding the complexity and cost of conventional cells. The purity of the hydrogen gas produced by the cells, systems, and methods can be enhanced by removing at least some intermediate gas impurities from the cells. The purity of the hydrogen gas produced by the cells, systems, and methods can also be enhanced be introducing hydrogen gas to the cells to replenish any lost hydrogen. Water electrolyzing electrochemical cells and methods of electrolyzing water to produce hydrogen gas are also disclosed.
Nº publicación: US2025283232A1 11/09/2025
Solicitante:
HONDA MOTOR CO LTD [JP]
HONDA MOTOR CO., LTD
Resumen de: US2025283232A1
An electrolysis cell of an electrolysis device includes a membrane electrode assembly in which an electrolyte membrane is interposed between a first electrode and a second electrode. The membrane electrode assembly is positioned between a first separator and a second separator. The electrolysis device further includes a seal member and a protection member. The protection member surrounds the outer periphery of the second electrode. The protection member includes a first portion and a second portion. The first portion is interposed between the electrolyte membrane and the seal member. The second portion is interposed between the electrolyte membrane and the second separator.
BOPI
Sede Electrónica
