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348
resultados
Última actualización
28/01/2026 [07:53:00]
Resultados 50 a 75 de 348
Resumen de: CN120418995A
The invention relates to an electrochemical reactor (1), in particular a redox flow cell, a fuel cell, an electrolytic cell or an electrosynthesis cell, comprising a stack (Z) consisting of a plurality of cells (2) which are separated from each other by at least one bipolar plate (3) and are stacked in a stacking direction (R), wherein the cells (2) each have two electrodes (5, 6) and a separator (10) arranged between the two electrodes (5, 6), and wherein the at least one bipolar plate (3) is flexible. In order to be able to increase mass transfer and material distribution with low construction and equipment investment and low material load, an oscillator (13) which excites at least one bipolar plate (3) to generate oscillations is integrated in the bipolar plate (3).
Resumen de: TW202436207A
A first aspect is directed to a method for producing hydrogen by thermochemical splitting of water includes injecting one or more feed streams of water into a reaction chamber. The method further includes using heat from a subterranean heat source to carry out the thermochemical splitting of water to form hydrogen and oxygen in the reaction chamber. The formed products are subsequently removed from the reaction chamber. A second aspect is directed to a reaction system includes a wellbore extending from a surface into a subterranean heat source. The reaction system further includes a reaction chamber configured to be maintained at a reaction temperature using heat from the subterranean heat source. The reaction system further includes one or more inlet conduits. The inlet conduits are configured to provide one or more feed streams to the reaction chamber. The reaction system also includes outlet conduits configured to allow flow of one or more product streams.
Resumen de: CN120659909A
An electrochemical cell stack (1) comprising a plurality of cells (2) separated from one another by bipolar plates (5, 5 '), where each cell (2) is formed by two half-cells (3, 4) between which a membrane (6) surrounded by a support frame (7) is arranged, and where a porous transport layer (10, 11) is present in each half-cell (3, 4). The support frame (7) describes a step shape having two adjacent cross-sectional areas (12, 13), in which the edge (18) of the membrane (6) lies in a step (17) formed by the cross-sectional areas (12, 13) and the porous transport layer (10) of the half-cell (3) extends into the step (17), and in which the porous transport layer (10) of the half-cell (3) extends into the step (17). According to the invention, the support frame (7) comprises at least one sealing arrangement (15) injection molded onto the support frame (7) and comprising an electrically insulating sealing material, according to the invention, the sealing arrangement (15) comprises three sealing regions (19, 20, 21), each having at least one sealing lip (22, 22 '), in particular a first sealing region (19) and a second sealing region (20) and a third sealing region (21), which are assigned to narrower regions of the two cross-sectional regions (12, 13) facing the membrane (6), the first sealing region and the second sealing region each contact exactly one bipolar plate (5, 5 '), and the third sealing region is located on a side of the support frame (7) facing away from the step (17)
Resumen de: GB2642535A
A method for the manufacture of catalyst-coated polymer electrolyte membranes (CCMs) for water electrolysis is described. The CCMs may comprise a proton exchange membrane (PEM) or an anion exchange membrane (AEM) with an anode layer and/or a cathode catalyst layer applied to a face of the membrane. The method comprises the steps of forming a polymer electrolyte membrane on a first catalyst layer 2 comprising a platinum-containing catalyst on a carbon support material 1 and a catalyst layer ion-conducting polymer. The catalytic layer 2 may comprise a hydrogen evolution catalyst (HER) and/or an oxygen evolution catalyst (OER). The first catalyst layer 2 has an expected effective platinum surface area in the range of and including 5-200 cm2Pt/cm2 and a carbon content in the range of and including 30-60 wt%.
Resumen de: WO2024184586A1
The invention relates to a method for producing hydrogen. The method comprises providing water and a gaseous substance, the gaseous substance comprises hydrogen atoms and carbon atoms, producing a mixture comprising the water and bubbles comprising the gaseous substance, decreasing diameter of the bubbles comprising the gaseous substance, and producing gaseous hydrogen by decomposing the gaseous substance in the bubbles having the decreased diameter. The invention further relates to apparatus for producing hydrogen gas.
Resumen de: GB2642534A
A system and process for facilitating the direct electrolysis of saltwater, such as seawater, is described. The system comprises an acid-base flow battery (ABFB) 230 with an acid solution outlet 403, an alkaline solution outlet 402 and a saltwater inlet 401; and a water electrolyser 340 downstream of the ABFB for producing hydrogen 408, the electrolyser comprising a negative electrode and a positive electrode. The ABFB is in fluid communication with the water electrolyser, such that, in use, an alkaline solution from the alkaline solution outlet of the acid-base flow battery passes into a positive electrode channel of the water electrolyser proximal the positive electrode. By coupling a water electrolyser with an upstream acid-base flow battery in this way, the base solution by-product from the ABFB is fed into the positive (anode) channel of the electrolyser. In this way, the pH proximal the positive electrode is increased. As a result, saltwater is subjected to electrolysis without the evolution of chlorine or bromine at the positive electrode. The brine by-product of the process may be subjected to freshwater-saltwater reverse electrodialysis (RED) to convert dilution energy to usable electricity.
Resumen de: WO2024184587A1
The invention relates to a method for producing a compound comprising at least one of hydrogen or oxygen. The method comprises providing water and a first substance, producing a mixture comprising the water and bubbles comprising the first substance, decreasing diameter of bubbles comprising the first substance, decomposing a part of the water, and composing a compound at least from the decomposed water and the first substance, and the compound comprising at least one of hydrogen or oxygen. The invention further relates to apparatus for producing a compound comprising at least one of hydrogen or oxygen.
Resumen de: FI20245884A1
The invention relates to a system and method for producing pressurized hydrogen from a solid oxide electrolyser connected to an electrochemical hydrogen compressor. The system comprises a solid oxide electrolyser (SOEC) (1), which is configured to generate hydrogen; an electrochemical hydrogen compressor (EHC) (2), which is configured to pressurize said hydrogen generated by said SOEC; and a first recovery circuit, which is configured to recover water exiting the cathode (2c) of the EHC (2) by providing a return path through the EHC (2) to the cathode (1C) of the SOEC (1) for consumption. An optional second recovery circuit is configured to recover heat from at least one output flow (4, 5) of the SOEC (1) to a heat exchanger (15), which is configured to heat said return path (4,18) at the cathode (1C) of said solid oxide electrolyser (1).
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).
Resumen de: CN119491243A
The invention relates to the technical field of household appliances, and provides a hydrogen peroxide generating device and application thereof. The hydrogen peroxide generating device comprises a shell, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are formed in the shell, the liquid inlet is used for being connected with a water supply component, a cathode piece and an anode piece which are used for electrolyzing water to generate a hydrogen peroxide solution are arranged in the shell, and the liquid outlet is used for discharging the generated hydrogen peroxide solution. According to the hydrogen peroxide generating device provided by the invention, water entering the shell through the liquid inlet can be electrolyzed to generate the hydrogen peroxide solution, and the generated hydrogen peroxide solution is discharged through the liquid outlet; the hydrogen peroxide generating device can be applied to household appliances such as clothes washing equipment, clothes processing equipment, an air conditioner, a dehumidifier, a refrigerator and a dish washing machine, can play a good role in cleaning, odor removal, disinfection, sterilization and the like, reduces the use of detergent, and improves the use experience of a user.
Resumen de: CN116377465A
The invention is applicable to the related technical field of hydrogen production, and provides a polar plate for reducing the starting time of an alkaline hydrogen production device and an assembly process thereof.The main polar plate comprises a metal ring, two partition plates which are symmetrically arranged are fixedly connected to the inner wall of the metal ring, holes are evenly distributed in the metal ring, a cavity is formed between the holes and the two partition plates, the partition plates are 0.6 mm steel plates, and the metal ring is made of stainless steel. The distance between the two partition plates is 0.8 mm. A cavity is formed in the metal ring under the action of the partition plates, when the alkaline hydrogen production device is started, water at the constant temperature of 85 DEG C is injected into a new drainage basin 2 hours ahead of time by a technician, circulation is conducted to heat the electrolytic bath till the electrolytic bath is heated to 65 DEG C, at the moment, the alkaline hydrogen production device is started, circulation of the water at the constant temperature of 85 DEG C is stopped, and therefore the alkaline hydrogen production device is started. And the temperature of the alkaline hydrogen production electrolytic cell is increased from 65 DEG C to 85 DEG C. The time is 2 hours; the starting time of the alkaline hydrogen production device is shortened to 2 hours, and the energy consumption of the alkaline hydrogen production devi
Resumen de: KR20240175881A
Provided is the complex energy base hydrogen production system utilizing the solar energy and sunlight complex energy and produces the hydrogen. The complex energy-based hydrogen generation system comprises: a complex energy block collecting solar energy to generate hot water or electricity; a hydrogen generation block generating hydrogen by using the generated hot water; and an electricity supply block storing or supplying the generated electricity.
Resumen de: KR20240175881A
Provided is the complex energy base hydrogen production system utilizing the solar energy and sunlight complex energy and produces the hydrogen. The complex energy-based hydrogen generation system comprises: a complex energy block collecting solar energy to generate hot water or electricity; a hydrogen generation block generating hydrogen by using the generated hot water; and an electricity supply block storing or supplying the generated electricity.
Resumen de: KR20240175881A
Provided is the complex energy base hydrogen production system utilizing the solar energy and sunlight complex energy and produces the hydrogen. The complex energy-based hydrogen generation system comprises: a complex energy block collecting solar energy to generate hot water or electricity; a hydrogen generation block generating hydrogen by using the generated hot water; and an electricity supply block storing or supplying the generated electricity.
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: WO2026008847A1
The present invention relates to a method of producing green steel by reduction of iron oxides using hydrogen. The inventive method makes use of mining waste as starting material for H2 generation by SDE process or a sulfur-iodine-process. Side products can be utilized in the steelmaking process. This is achieved by a method according to the present invention comprising the following steps: a) a part or all of the iron oxide used as raw material for steelmaking is reduced by hydrogen, b) a part or all hydrogen required for the reduction of iron oxide is generated via a SO2-depolarized electrolyzer (SDE) process or a sulfur-iodine-process, and c) a part or all of the diluted sulfuric acid obtained from step b) is used for at least one of i. steel pickling, ii. reaction with steel mill dust for generation of iron sulfate (FeSO4 or Fe2(SO4)3), and iii. increasing the concentration of said diluted sulfuric acid by vacuum evaporation of water using off-heat from steelmaking or pyrite roasting.
Resumen de: WO2026008367A1
An offshore hydrogen production system is described comprising: a hydrogen production facility (10) comprising a power generator (70) configured to convert a source of renewable energy to electrical power and at least one electrolyser (16). The capacity of the at least one electrolyser (16) corresponds to a power output of the power generator (70). The hydrogen production facility (10) is configured to be supplied with utilities for the production of hydrogen from a utilities system (11) which is located remote from the offshore hydrogen production facility (10). Also described is a method of producing hydrogen, a method of designing an offshore hydrogen production system, a method for the production of an offshore hydrogen production system.
Resumen de: US20260009149A1
Provided is a transition metal-doped nickel oxyhydroxide catalyst, its preparation method, and its application in seawater electrolysis for hydrogen production. The method includes: (1) constructing a three-electrode system and using a chronoamperometry or chronopotentiometry method to electrodeposit a precatalyst onto a conductive substrate from a mixed metal salt solution containing nickel, iron, and at least one other transition metal salt such as cobalt or chromium; and (2) using the precatalyst-loaded substrate as a working electrode in an alkaline solution and applying a constant current to perform an in-situ conversion, thereby forming the final transition metal-doped nickel oxyhydroxide catalyst. The resulting catalyst exhibits high catalytic activity, high selectivity for oxygen evolution, and exceptional long-term stability under high current densities, making it highly suitable for direct seawater electrolysis systems,
Resumen de: US20260009146A1
We synthesized a tungsten titanium carbide (W2TiC2) MXene. By loading cobalt onto the surface of W2TiC2, we developed an effective and stable catalyst for an alkaline hydrogen evolution reaction. The catalyst exhibited a small overpotential of 63 mV at 10 mA/cm2 and a low Tafel slope of 44.3 mV/dec. At high current density of 100 mA/cm2 and 1000 mA/cm2, low overpotentials of 191 mV and 408 mV were achieved, outperforming commercial Pt/C electrodes. Under both current ranges, our catalyst exhibited excellent stability of 500 h at 10 mA/cm2 and for 100 h at 1000 mA/cm2 without any degradation. In flow cell tests, by pairing with Ni foam, our catalyst required much lower cell voltage than commercial Ni foam Pt/C and maintained ̃100% H2 faradaic efficiency over 15 h of continuous tests from 50 to 400 mA/cm2. Under more demanding industry-level conditions, the catalyst maintains the incredible performance, exhibiting an excellent stability of at least 1000 h at 4000 mA cm−2 in 1 M KOH.
Resumen de: US20260009148A1
The present invention provides an oxygen-dominated supra-nano dual-phase catalytic reaction material, which includes a uniform oxygen-enriched amorphous shell and a core encapsulated within the uniform oxygen-enriched amorphous shell. This invention exhibits ultrahigh HER performance, a critical reaction in water splitting, making it suitable for application in hydrogen production industries, battery companies, new energy vehicle enterprises, and large power stations.
Resumen de: US20260009145A1
An electrolysis system has at least two electrolysis installations, a power supply source with a direct voltage output, and a central supply line connected to the direct voltage output. A direct current, at a first direct voltage, can be fed into the central supply line. The electrolysis installations are connected electrically in parallel to the central supply line. For a direct voltage supply from the public power grid a central voltage source converter converts an input-side alternating voltage into the output-side first direct voltage at a direct voltage output. Each electrolysis installation is connected via a DC/DC converter that converts the first direct voltage into a second direct voltage, parallel to the direct voltage output so that the second direct voltage drops across the electrolysis installation. Each of the DC/DC converters can be controlled and/or regulated for adapting a level of its second direct voltage.
Resumen de: US20260008033A1
A method for producing dihydrogen by photodissociation of water, may include bringing an aqueous solution in contact with oxidized nanodiamonds under solar, natural, or artificial illumination (or light). The oxidized nanodiamonds may have an oxygen/carbon ratio of at least 5% atomic, determined by XPS without previous treatment of the oxidized nanodiamonds. The method may further include preparing the oxidized nanodiamonds by subjecting nanodiamonds to an oxidizing treatment. The oxidizing treatment may include annealing at a temperature of 500° C.±50° C. for a duration in a range of from 1 to 5 hours under an oxygenated atmosphere.
Resumen de: US20260008042A1
The present disclosure is directed to a processing solution composition comprising a metal salt, an acid, a solvent, and a non-metal reductant. The present disclosure is also directed to a method of impregnating a porous material by covering or coating the porous material with a processing solution comprising a metal salt, an acid, a solvent, and a non-metal reductant.
Resumen de: US20260008100A1
A porous titanium sheet configured to function as an anode side gas diffusion layer of a proton exchange membrane (PEM) electrolyzer is formed by a powder technique, such as tape casting or powder metallurgy.
Nº publicación: US20260008043A1 08/01/2026
Solicitante:
ELECTRIQ GLOBAL ENERGY SOLUTIONS LTD [IL]
Electriq-Global Energy Solutions Ltd
Resumen de: US20260008043A1
The present disclosure provides a catalyst, its preparation and uses thereof, the catalyst comprising a conductive substrate coated by at least two layers including a proximal layer and a distal layer wherein said proximal layer comprises a proximal metal composition and said distal layer comprise a distal metal composition, the proximal metal composition being different from the distal metal composition; wherein said proximal metal composition comprises a metallic M and said distal metal composition comprise a combination of two or more different metal complexes, each having a formula MxLy, wherein M, which may be the same or different in said two or more metal complexes, represents a metal atom; L, which may be the same or different in said two or more metal complexes, represents a moiety comprising at least one atom selected from the group consisting of oxygen (O), phosphorous (P), boron (B) and nitrogen (N); x represents any value between (1) and (6); and y represents any value between (1) and (6); and wherein said metal atom of metallic M and said metal atom in MxLy may be the same or different metal atom.
BOPI
Sede Electrónica
