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54
results.
Updated on
06/12/2025 [07:46:00]
Absstract of: CN120530521A
Disclosed is a hydrophilic porous polymer membrane which is particularly suitable for use in electrolytic cells for producing hydrogen. The porous polymer membranes contain one or more high density polyethylene polymers in combination with one or more hydrophilic additives. The porous membrane may be formed by a gel extrusion process or sintering. Extremely thin membranes having desired permeability characteristics, hydrophilic characteristics, and mechanical characteristics required for use in batteries can be produced.
Absstract of: CN120167017A
A process for co-production of carbon monoxide and hydrogen is discussed herein, the process comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a hybrid conductive membrane positioned between the anode and the cathode; (b) introducing a first stream into the anode, wherein the first stream comprises a fuel; (c) introducing a second stream into the cathode wherein the second stream comprises carbon dioxide and water wherein carbon monoxide is electrochemically generated from carbon dioxide and hydrogen is electrochemically generated from water. In an embodiment, the anode and the cathode are separated by the membrane, and both are exposed to a reducing environment during the entire operating time.
Absstract of: CN120265887A
The invention provides a method of compressing an aqueous oxygen-containing stream originating from an electrolysis cell, the method comprising at least the steps of: (a) providing an aqueous oxygen-containing stream (10); (b) combining the aqueous oxygen-containing stream (10) provided in step (a) as a suction fluid with an aqueous stream (20) as a motive fluid in an ejector (2), thereby obtaining a combined stream; (c) flashing the combined stream through the ejector (2), thereby obtaining a two-phase fluid (30) exiting the ejector (2); (d) separating the two-phase fluid (30) exiting the injector (2) into an oxygen-containing gas stream (40) and a liquid stream (50); (e) pressurizing the liquid stream (40) obtained in step (d), thereby obtaining a pressurized liquid stream; (f) using the pressurized liquid stream obtained in step (e) as the motive fluid (20) in step (b); (g) dehydrogenating the oxygen-containing gas stream (40) obtained in step (d), thereby obtaining a dehydrogenated oxygen-containing stream (70); (h) dewatering the dehydrogenated oxygen-containing stream (70) obtained in step (g), thereby obtaining a dewatered dehydrogenated oxygen-containing stream (80); (i) compressing the dehydrated and dehydrogenated oxygen-containing stream (80) obtained in step (h), thereby obtaining a compressed oxygen-containing stream (90); and (j) using the compressed oxygen-containing stream (90) obtained in step (i), in particular in a gasifier (9).
Absstract of: KR20250160699A
바이폴라 플레이트가 제공된다. 상기 바이폴라 플레이트는 유로가 형성된 판부;를 포함하고, 상기 유로에는 스피드 범프(speed bump)가 형성될 수 있다. 상기 유로는 양이온 교환막(PEM, Proton Exchange Membrane) 또는 막전극접합체(MEA, Membrane Electrode Assembly)에 대면하는 상기 판부의 일면에 트렌치(trench) 형상으로 형성될 수 있다. 상기 유로의 내측벽과 바닥면 중 적어도 하나로부터 돌출된 돌출부가 마련될 수 있다.
Absstract of: AU2023366329A1
A method for producing higher hydrocarbons in a Fischer-Tropsch (FT) reactor by recycling a FT tail-gas comprising: feeding the FT reactor with a dry syngas to form liquid hydrocarbons and the FT tail-gas, wherein the dry syngas is obtained by a Reverse Water-Gas Shift (RWGS) reaction of a stream of CO
Absstract of: JP2025169505A
【課題】本発明の課題は、塩化物イオンを含む水の電解において塩化物イオンの酸化を抑制して酸素を製造できる酸素の製造方法を提供することである。【解決手段】酸化ルテニウム（IV）又は酸化イリジウム（IV）を含む酸素発生反応用触媒を担持した電極を陽極に使用して、塩化物イオンを含む水を電解することにより酸素を製造する酸素の製造方法であって、前記塩化物イオンを含む水の温度を３０℃以上にして前記電解を行う酸素の製造方法。【選択図】図３
Absstract of: JP2025169754A
【課題】水から水素を効率的に製造する新たな方法を提供する。【解決手段】本発明の製造方法は、還元剤を加えた水に電磁波を照射して、水素を発生する、水素の製造方法である。【選択図】なし
Absstract of: US2025354272A1
Provided is an electrochemical system comprising a water electrolysis stack with an anode and a cathode. The system includes a reaction fluid supply line that supplies a reaction fluid to the anode, a first gas-liquid separator located in the reaction fluid supply line to separate the reaction fluid into gaseous and liquid components, and a first filter part positioned upstream of the first gas-liquid separator to filter the reaction fluid. The system further includes a first circulation line that circulates the liquid reaction fluid from the anode back to the first gas-liquid separator. Additionally, a second gas-liquid separator in a discharged fluid discharge line is connected to the cathode, with a second circulation line configured to maintain the ionic purity of the discharged fluid. The system also includes a mechanism to monitor ionic conductivity and selectively control the operation of the water electrolysis stack based on detected ionic levels.
Absstract of: CN115948757A
The invention provides an electrolytic bath which comprises a cathode end plate, a cathode insulating layer, an electrolytic unit, an anode insulating layer and an anode end plate which are sequentially arranged in the same direction, each small electrolysis chamber comprises a cathode plate, a cathode sealing ring, a cathode gas diffusion layer, a diaphragm, an anode gas diffusion layer and an anode plate which are sequentially arranged in the same direction, the cathode plate and the anode plate at the series connection part between the small electrolysis chambers are combined to form a bipolar plate, the cathode plate comprises a cathode surface, the anode plate comprises an anode surface, and the bipolar plate comprises a cathode surface and an anode surface; a concave area and an outer frame area are arranged on the cathode surface and the anode surface, the outer frame area is arranged around the concave area, a plurality of raised lines are arranged in the concave area, a diversion trench is formed between the raised lines, confluence trenches are arranged in the concave area at two ends of the diversion trench, and the confluence trenches are communicated with the diversion trench. According to the scheme, uniform diffusion of the electrolyte is realized.
Absstract of: WO2024191979A1
A selective separator is described that comprises a porous polymeric separator and selective material on at least one outer surface. Selective material comprising a composite of ion exchange polymer and zirconium oxide particles (ZrO2) distributed throughout the ion exchange polymer may be applied as a liquid by a spray coating method. Selective separators made by methods described herein are suitable for use in alkaline water electrolysis applications.
Absstract of: CN120418004A
The present invention relates to an ammonia decomposition catalyst and a method for producing the same, and more particularly, to an ammonia decomposition catalyst comprising alumina (Al2O3), cerium (Ce), lanthanum (La), ruthenium (Ru), and potassium (K), and a method for producing the same.
Absstract of: WO2025233816A1
An AEM electrolyzer comprises structural end elements (20, 30) and an electrolytic structure (22) comprising a plurality of electrolytic cells (40) to which respective gasket assemblies (50) completely made of elastomeric material are associated and in which portions of anode side inlet channels (23) and outlet channels (24) and of cathode side inlet channels (25) and outlet channels (26) are obtained, while a pressurisable chamber is obtained between at least one of the end elements (20, 30) and the electrolytic structure (22) to compensate for the gas pressure in the electrolytic structure itself. An AEM electrolyzer is obtained with reduced production costs and high electrical efficiency.
Absstract of: WO2025233819A1
An AEM electrolyzer comprises end structural elements (20, 30) and an electrolytic structure (22) comprising a plurality of electrolytic cells (40) to which are associated respective structural support and sealing assemblies (50) completely made of elastomeric material and in which are obtained portions of anode side inlet channels (23) and outlet channels (24) and of cathode side inlet channels (25) and outlet channels (26), while a pressurizable chamber is obtained between at least one of the end elements (20, 30) and the electrolytic structure (22) to compensate the gas pressure in the electrolytic structure itself. An AEM electrolyzer is obtained with reduced production costs and high electrical efficiency.
Absstract of: WO2025233484A1
An apparatus (1) for generating hydrogen, the apparatus (1) comprising a housing (10) containing a first electrode (11) and a second electrode (12), each of the first electrode (11) and second electrode (12) being for submersion within water located within the housing (10), the first electrode (11) surrounding the second electrode (12), wherein the first electrode (11) is of cylindrical form and the second electrode (12) is of at least part-conical or frusto-conical form.
Absstract of: US2025345783A1
The present invention relates to a catalyst for an ammonia decomposition reaction, a method for preparing same, and a method for producing hydrogen by using same. More specifically, the present invention relates to a method for preparing a catalyst for an ammonia decomposition reaction, which economically and efficiently supports highly active ruthenium on a lanthanum-cerium composite oxide support, thereby preparing a catalyst that exhibits a higher ammonia conversion rate than conventional catalysts for an ammonia decomposition reaction, to a catalyst for an ammonia decomposition reaction prepared by the same method, and a method for producing hydrogen by using the same.
Absstract of: AU2024285985A1
A method of producing a hydrogen stream and an oxygen stream and passing the hydrogen stream and the oxygen stream to a reverse water-gas shift reactor is described, the method comprising: providing a water stream to an electrolysis system configured to form: a hydrogen stream at a first pressure, and an oxygen stream at a second pressure; passing the hydrogen stream, a carbon dioxide stream, and the oxygen stream to the reverse water-gas shift reactor, wherein the first pressure is lower than the second pressure.
Absstract of: AU2025202385A1
The present invention is an adhesive-fixed electrolysis module comprising a single stack, the single stack having a separator, a pair of bipolar plates, a pair of gaskets, a pair of diffusion layers, a pair of electrodes, and a cell frame, wherein the bipolar plates, the gaskets, 5 the diffusion layers, and the electrodes are sequentially arranged on the cathode and anode sides, respectively, with respect to the separator, forming a symmetrical structure, wherein the separator, the bipolar plates, the gaskets, the diffusion layers, and the electrodes are stacked in a zero-gap manner within the cell frame, and wherein the bipolar plates are adhered and fixed to the cell frame using an adhesive, thereby simplifying product assembly 10 and reducing assembly costs compared to a single stack fixing method using welding, riveting, bolting, etc. between conventional parts. The present invention is an adhesive-fixed electrolysis module comprising a single stack, the single stack having a separator, a pair of bipolar plates, a pair of gaskets, a pair of 5 diffusion layers, a pair of electrodes, and a cell frame, wherein the bipolar plates, the gaskets, the diffusion layers, and the electrodes are sequentially arranged on the cathode and anode sides, respectively, with respect to the separator, forming a symmetrical structure, wherein the separator, the bipolar plates, the gaskets, the diffusion layers, and the electrodes are stacked in a zero-gap manner within the cell frame, and wher
Absstract of: WO2025231966A1
Disclosed in the present invention are a titanium alloy bipolar plate with a high pitting potential and a low resistivity and a preparation method therefor. The titanium alloy bipolar plate comprises the following components in percentages by mass: 3.0-5.0% of Mo, 0.1-0.3% of Ni, 0.005-0.05% of Ru and the balance being Ti, and the total content of impurity elements (Fe, O, C, N and H) does not exceed 0.01%. According to the titanium alloy bipolar plate of the present invention, on the basis of meeting the electrical conductivity requirement, the pitting potential of the titanium alloy bipolar plate can be improved, such that the problems of a relatively poor corrosion resistance and a low hydrogen production efficiency caused due to the relatively low pitting potential of the titanium alloy bipolar plate in a service environment of a water electrolysis hydrogen production electrolytic bath are fundamentally solved.
Absstract of: US2025347005A1
The present invention relates to a method for the combined electrolytic and thermal production of hydrogen gas, the method comprising: (i) providing a plasma treatment unit having a plasma treatment chamber comprising first and second electrodes, and a first gas outlet in fluid communication with said plasma treatment chamber; wherein a base portion of the plasma treatment chamber forms a reservoir of an aqueous electrolyte; wherein the first electrode is comprised within a plasma torch whereby the plasma torch is arranged at a distance above a surface of the reservoir; and wherein the second electrode is submerged in the aqueous electrolyte; (ii) establishing a DC electric potential between the first and second electrodes whilst providing a flow of non-oxidising ionisable gas between the first electrode and the surface of the reservoir to generate and sustain a plasma arc therebetween, thereby producing hydrogen gas in the plasma treatment chamber; and (iii) recovering the hydrogen gas via the first gas outlet. The present invention also relates to a plasma treatment unit.
Absstract of: US2025347014A1
A photoelectrode includes a fluorine-doped tin oxide (FTO) substrate, and a layer of graphitic-poly(2,4,6-triaminopyrimidine) (g-PTAP) nanoflakes at least partially covering a surface of the FTO substrate. Further, the g-PTAP nanoflakes have a width of 0.1 to 5 micrometers (μm). In addition, a method for producing the photoelectrode, and a method for photocatalytic water splitting, in which the photoelectrode is used.
Absstract of: US2025347008A1
An electrolysis plant includes at least one electrolysis module. The electrolysis module has a plurality of series-connected electrolysis cells. A DC-capable switching device is connected electrically in parallel and has an activatable power resistor such that, in the closed state, a current path through the power resistor can be activated so as to bypass electrolysis cells and to be able to drain excess power through the power resistor. There is also described a method for operating such an electrolysis plant for separating water into hydrogen and oxygen, and to a combination with an electrolysis plant that is connected directly to a wind turbine.
Absstract of: US2025347015A1
The present application relates to components for use in an electrolysis cell and/or stack comprising features, geometry, and materials to overcome prior art limitations related to cell electrical isolation, fluid sealing, and high speed manufacturing. The electrolysis cell comprises a membrane, an anode, a cathode, an anode flow field, a cathode flow field, and a bipolar plate assembly comprising an embedded hydrogen seal and both conductive and non-conductive areas. The components are cut using two-dimensional patterns from substantially flat raw materials capable of being sourced in roll form. These substantially two-dimensional components are processed to create a fully unitized, three-dimensional electrolysis cell with a hermetically sealed cathode chamber.
Absstract of: US2025347013A1
A photoelectrode includes a fluorine-doped tin oxide (FTO) substrate, and a layer of graphitic-poly(2,4,6-triaminopyrimidine) (g-PTAP) nanoflakes at least partially covering a surface of the FTO substrate. Further, the g-PTAP nanoflakes have a width of 0.1 to 5 micrometers (μm). In addition, a method for producing the photoelectrode, and a method for photocatalytic water splitting, in which the photoelectrode is used.
Absstract of: US2025347011A1
An electrode includes a bimetallic ruthenium-cobalt (RuCo) alloy electrocatalyst having a metallic substrate and a layer of a RuCo alloy at least partially covering the surface of the metallic substrate. The layer of the RuCo alloy includes spherical-shaped particles having an average particle size of 0.5 to 5 micrometers (μm). The electrode can be used for electrochemical water splitting applications to generate hydrogen and water.
Nº publicación: US2025347010A1 13/11/2025
Applicant:
KING FAHD UNIV OF PETROLEUM AND MINERALS [SA]
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
Absstract of: US2025347010A1
A method of making NiO nanoparticles is described, as well as a method of using NiO nanoparticles as an electrocatalyst component to a porous carbon electrode. The carbon electrode may be made of carbonized filter paper. Together, this carbon-supported NiO electrode may be used for water electrolysis. Using a pamoic acid salt in the NiO nanoparticle synthesis leads to smaller and monodisperse nanoparticles, which support higher current densities.
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