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662
results.
Updated on
01/09/2024 [07:14:00]
Results 200 to 225 of 662
Absstract of: WO2024161280A1
An electrochemical device with a modular stack cell structure has, at one end, a cathode plate (h1) and, at the other end, a cathode plate (h2), two electrolyte membranes (ccm), and an anode plate (2a ) between the electrolytic membranes (ccm) which are arranged in a sandwich on the sides of the anode plate (2a). The cathode plates (h1, h2) include gas collection chambers (60) connected to each other via passages (61) and connection channels (16), and communicating with the outside via a hydrogen manifold (15). The anode plate (2a) has a serpentine channel (20) closed laterally by the electrolytic membranes (ccm) and communicating with the outside via an inlet manifold (21) and an outlet manifold (22).
Absstract of: WO2024160929A1
An electrode for use in the electrolysis of water under alkaline conditions, comprising a nickel metal substrate, a ceramic material with a perovskite-type structure comprising an oxide of at least one metal selected from among lanthanides including lanthanum, cerium and praseodymium, where said ceramic material is forming a coating on said nickel metal substrate, and metal nanoparticles are socketed into the said ceramic material. The metal nanoparticles facing the alkaline solution have electrochemical activity, whereas the metal nanoparticles facing the said metal substrate form an anchoring points between the metal substrate and the said ceramic material.
Absstract of: WO2024161241A1
The invention relates to a system for solid-state electricity storage and solid-state electricity generation that allows electricity to be stored when the renewable energy sources produce excess electricity and electricity to be generated when the electricity demand on the market exceeds the electricity production from renewable energy sources. The system comprises a solid-state electricity storage device (1) having a first electrolysis device (6) for producing chlorine from a melt of zinc chloride and solid zinc, a second electrolysis device (8) for producing hydrogen from water, a first reactor (10) for producing hydrogen chloride, and a vessel (13) with a water sprayer (14) for producing hydrochloric acid. The system further comprises a solid-state electricity generation device having a second reactor for reacting zinc and hydrochloric acid to produce hydrogen and a fuel cell for generating electricity.
Absstract of: US2024263333A1
Methods and systems for producing iron from an iron-containing ore are disclosed. For example, a method for producing iron comprises: providing an iron-containing ore to a dissolution subsystem comprising a first electrochemical cell and a dissolution tank; dissolving the iron-containing ore to form an acidic iron-salt solution; reducing Fe3+ ions to form Fe2+ ions and electrochemically generating protons in the first electrochemical cell; circulating solution between the dissolution tank and the first electrochemical cell; transferring formed Fe2+ ions from the dissolution subsystem to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing a first portion of the transferred formed Fe2+ ions to Fe metal at a second cathode of the second electrochemical cell; and removing the Fe metal. The methods and systems optionally include removing one or more impurities found in the feedstock.
Absstract of: US2024263330A1
An electrolyzer system includes a multiple-state power input and control circuitry for the multiple-state power input. The control circuitry is configured to obtain a power source metric indicator and, based on the power source metric indicator, determine a hydrogen generation profile for the electrolyzer. The control circuitry is configured to determine, based on the hydrogen generation profile, a selected state from among multiple power states of the electrolyzer system. The control circuitry is configured to cause operation of the electrolyzer system in the selected state.
Absstract of: US2024263329A1
An electrolyte membrane laminate including: a first electrolyte membrane having a first main surface and a second main surface; and a first interlayer and a second electrolyte membrane in this order on the first main surface of the first electrolyte membrane; wherein the first electrolyte membrane contains a hydrocarbon-based polymer electrolyte, the first interlayer contains a polymer electrolyte and particles, and the second electrolyte membrane contains a polymer electrolyte and particles containing a transition metal element. Provided is an electrolyte membrane laminate having an excellent hydrogen-proof barrier property and a good durability.
Absstract of: US2024263327A1
The present invention provides a simple method for producing an electrode having improved oxygen evolution reaction (OER) activity without a need for catalyst coating and an electrode produced by this production method. The method is a method for producing an electrode including a step of subjecting an electrically conductive substrate comprising a nickel alloy comprising 30 to 70% by mass of Ni and 30 to 70% by mass of Fe, provided that Ni+Fi=100% by mass, to a thermal treatment, and a step of etching the thermally treated electrically conductive substrate with an etchant comprising at least any acid of an organic acid and a weak inorganic acid. The electrode is an electrode that is produced by this production method and that is useful as an oxygen evolution anode or the like.
Absstract of: US2024263332A1
An electrolysis system with a buffer tank An electrolysis system for production of hydrogen and/or oxygen comprising a stack of electrolysis cells inside a pressure vessel (18). Each electrolysis cell in the stack comprises a membrane (82A, 82B) and a cassette (12) made of a bipolar plate (74) sand-wiched by a cathode (30B) and an anode (78) forming a cathode compartment and an anode compartment on each side of the bipolar plate (74). The stack is enclosed in a container constituting a buffer container for storing hydrogen released in the stack. The stack has an outlet constituting a hydrogen outlet for flow of hydrogen gas into said buffer container for filling the buffer container with hydrogen gas.
Absstract of: CN117858978A
The invention relates to an electrolytic cell and a manufacturing method thereof. The electrolytic cell comprises at least two electrolytic cells provided with an anode frame and a cathode frame, respectively, where these frames are equipped with supply and discharge channels that reduce stray current and facilitate cell assembly. The electrolytic cell may preferably be used for high pressure alkaline water electrolysis (AWE).
Absstract of: US2024263317A1
A system includes an HTE electrolyser, a first steam supply line, a first dihydrogen discharge line, a second dioxygen discharge line, a first heat exchange module configured to ensure a heat exchange between the first steam supply line and the first dihydrogen discharge line, a first module for recovering the thermal energy from the dihydrogen at the outlet of the first heat exchange module in favour of the first supply line, the recovery module comprising a first intermediate exchanger arranged on the first discharge line downstream from the first heat exchange module and configured to transfer the thermal energy from the dihydrogen to an intermediate fluid, and a first intermediate steam generator arranged on the first steam supply line configured to transfer the thermal energy from the intermediate fluid to the liquid water.
Absstract of: US2024266871A1
A system for efficient conversion and provision of electrical energy, wherein supplied electrical current is converted into hydrogen in an electrolyzer and optionally temporarily stored in hydrogen storage. The hydrogen is converted into electrical current in a conversion stage in which offgas containing water in vapor form is emitted. The offgas is cooled using a heat pump to obtain condensate which is supplied to the electrolyzer as feed water. As a result, a supplied electrical current is decoupled from generated electrical current, wherein utilization of the process heat provided by the heat pump makes it possible to achieve high efficiency coupled with a low demand for fresh water for the electrolyzer.
Absstract of: US2024266641A1
An apparatus for powering trucks including a power module skid and supporting structure for fitting on a truck. The skid housing hydrogen fuel cell modules, battery sub packs, cooling means and cooling management, and integrated power electronics, to provide an electrical drive train of the truck with a constant high voltage DC power supply. An integrated system using renewable energy to reduce greenhouse gases using one or more trucks, in which an integrated system includes: means for providing renewable energy; means for using the renewable energy to synthesise hydrogen; means for storing the synthesised hydrogen. The integrated system includes hybrid hydrogen power modules fitted to each truck including hydrogen fuel cell modules and battery sub packs so that the battery sub packs and the battery sub packs are recharged by the hydrogen fuel cells.
Absstract of: AU2023213348A1
The purpose of the present invention is to provide a negative electrode which maintains a high energy conversion efficiency for a long period of time without an increase in the overvoltage even in cases where start and stop of hydrogen generation are repeated. In order to achieve the above-described purpose, the present invention provides a negative electrode for hydrogen generation, the negative electrode having, on the surface of a conductive base material, a catalyst layer that contains at least one substance selected from among Pt, Pt oxide and Pt hydroxide and at least one substance selected from among a lanthanoid, a lanthanoid oxide and a lanthanoid hydroxide, while being characterized in that the molar ratio of the elemental Pt to the elemental lanthanoid (Pt : lanthanoid) in the catalyst layer is 95:5 to 65:35.
Absstract of: US2024261752A1
The hydrogen gas production device includes a water tank in which a hydrogen-side photocatalyst is immersed in water in which a mediator is dispersed and hydrogen gas is generated by irradiation with light, and a mediator is oxidized; a light irradiation means for irradiating the hydrogen side photocatalyst with light; a water tank in which an oxygen-side photocatalyst is immersed in the water in which the mediator is dispersed and oxygen gas is generated by irradiation with light, and a light irradiation means for irradiating the oxygen side photocatalyst with light; and a water circulation unit for circulating water in which a mediator is dispersed between the hydrogen side and the oxygen side water tank, and a light source of the light irradiation means is a light emitting diode.
Absstract of: US2024263321A1
Disclosed is a water electrolysis system that improves durability by preventing performance degradation inside a water electrolysis stack. According to the present invention, in order to reduce electrode degradation in a water electrolysis unit cell, which can frequently occur in the starting and stopping stages of a process for producing hydrogen from the water electrolysis system, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is heated while being circulated in the water electrolysis stack in the starting stage of the water electrolysis system. Also, when performing a stopping process, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is cooled while being circulated in the water electrolysis stack. Accordingly, it is possible to improve durability by preventing performance degradation inside the water electrolysis stack.
Absstract of: US2024263320A1
A polymer electrolyte water electrolyzer (PEWE). The PEWE includes a cathode catalyst layer, an anode catalyst layer, and a polymer electrolyte membrane between and separating the anode catalyst layer and the cathode catalyst layer. The PEWE further includes a first blocking layer and/or a second blocking layer. The first blocking layer is disposed between the cathode catalyst layer and configured to resist diffusion of unwanted ions or molecules through the polymer electrolyte membrane. The second blocking layer is disposed between the anode catalyst layer and is configured to resist diffusion of unwanted ions or molecules through the polymer electrolyte membrane.
Absstract of: WO2024162762A1
The present invention pertains to: a porous water-splitting electrode characterized by comprising a support coated with a carbon nanotube assembly, and a catalytically active layer formed on the coated support; a method for manufacturing the porous water-splitting electrode; and a water electrolysis device including the porous water-splitting electrode.
Absstract of: 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.
Absstract of: WO2024160195A1
An electrochemical oxygen-regulating device and a refrigerator. The electrochemical oxygen-regulating device (10) comprises an oxygen regulating assembly (110), a fluid replenishing device (120) and a filtering device (130), wherein the oxygen regulating assembly (110) performs an electrochemical reaction to regulate oxygen in a preset space; the fluid replenishing device (120) stores a liquid subjected to the electrochemical reaction by the oxygen regulating assembly (110); and the filtering device (130) is in communication with the fluid replenishing device (120), and the filtering device (130) is in communication with the oxygen regulating assembly (110) by means of a gas path, such that specific substances carried in a gas are dissolved in the liquid to reduce or even avoid environmental pollution.
Absstract of: AU2022406425A1
The present invention relates to a process for producing g-C
Absstract of: CA3240447A1
Provided is an aqueous solution electrolysis method whereby it becomes possible to reduce the amount of air bubbles covering an electrode and generate a gas of hydrogen, oxygen or the like with excellent energy efficiency. The method is an electrolysis method for electrolyzing an aqueous-solution-based electrolysis solution to generate at least one component selected from hydrogen, oxygen and chlorine, in which the electrolysis solution contains a water-soluble alcohol. The electrolysis solution contains about 0.1 to 10% by volume of a water-soluble alcohol including a tertiary alcohol such as 2-methylpropan-2-ol and 2-methylbutan-2-ol, an aqueous alkaline solution containing about 1 to 10 mol/L of an alkaline component may be water-electrolyzed, and the electrolysis solution is electrolyzed, for example, using an electrolysis cell equipped with an anode chamber and a cathode chamber.
Absstract of: WO2024159441A1
The application relates to an electrochemical system and a method for regenerating an electrochemical system. The electrochemical system comprises an electrochemical reaction stack for an electrochemical reaction which is water electrolysis or a reverse process of water electrolysis, a deionized water supply source and a first pipeline connecting the deionized water supply source and the electrochemical reaction stack. The deionized water supply source is configured to supply deionized water to the electrochemical reaction stack through the first pipeline. The electrochemical system further comprises a regeneration fluid supply source and a second pipeline connecting the regeneration fluid supply source and the electrochemical reaction stack and independent of the first pipeline. The regeneration fluid supply source is configured to supply a regeneration fluid to the electrochemical reaction stack through the second pipeline when the electrochemical reaction stack is not carrying out the electrochemical reaction, in order to regenerate the electrochemical system. The electrochemical system and the method for regenerating an electrochemical system have an improved regeneration effect.
Absstract of: AU2023216667A1
The present disclosure provides methods and apparatuses of producing hydrogen. The methods comprise: (a) contacting a plastic with a catalyst and a gas feed; and (b) applying a microwave at a first temperature. The apparatuses comprise: a reactor for mixing plastic with a catalyst to form a mixture; an inlet for introducing a gas feed; a microwave generator; an optional temperature sensor; and an outlet configured to exhaust the product hydrogen formed in the reactor.
Absstract of: AU2023218595A1
There is provided a method and apparatus for producing hydrogen gas from biogenic material (210) within a pressure vessel (10). The method comprises heating a granular material (15) to greater than 500°C, adding a batch of biogenic material (210) into the pressure vessel with the heated granular material (15) at atmospheric pressure, closing the pressure vessel, and mixing the heated granular material (15) with the biogenic material (210) inside the closed pressure vessel (10) to raise the temperature of the biogenic material (210) and commence gasification, the gasification producing gas that increases the pressure inside the pressure vessel (10), the produced gas comprising hydrogen gas.
Nº publicación: US2024263326A1 08/08/2024
Applicant:
HYDROGENPRO ASA [NO]
HYDROGENPRO ASA
Absstract of: US2024263326A1
The present invention relates to a method for producing an electrode for alkaline electrolysis based on a composition of metal sulfides on a Ni foam substrate. The metal can be Mo, Ni, Co, Fe and/or W. In a first step S1), there is performed a metal deposition, e.g. by electroplating, the metal, Me1/Me2, being Mo, Ni, Co, Fe, and/or W, on a Ni foam substrate resulting in a metal-Ni compound being formed on and/or in the Ni foam substrate. In a second step, S2) there is performed a sulfiding on the metal-Ni compound from the first step S1). The third step S3) is an optional repetition of S1 and/or S2 at least one time. The step S1) and step S2) thereby result in the formation of electrocatalytic active nano-sites with Me1-Me2-S—Ni compounds. It is found that these nano-sites are capable of reducing the so-called overpotential of the electrodes during alkaline water electrolysis, and the production of electrodes may be significantly simplified.
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