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953
resultados
Última actualización
15/03/2026 [07:16:00]
Resultados 50 a 75 de 953
Resumen de: AU2024263112A1
The present invention relates to an electrode and in particular to an electrode suitable for gas evolution comprising a metal substrate and a catalytic coating. Such electrode can be used as an anode for the development of oxygen in electrolytic processes such as, for example, in the alkaline electrolysis of water.
Resumen de: CN121013919A
The invention relates to a cell layer (200) for an electrolysis cell stack (60) of an electrolysis device group (51), in particular a water electrolysis device group (51), comprising a frame (250), in particular a cathode frame (250), in the main central region of which a transport structure (210) of the electrolysis cell stack (60) is accommodated, said frame (250) comprising at least one circumferentially open through-passage opening (256), in which the transport structure (210) of the electrolysis cell stack (60) is accommodated, the access through hole is used for electrolyzing an effluent product medium (56) of the cell stack (60); a fluid flow path (257) is arranged between the inner edge of the frame (250) and the outer edge of the transport structure (210) beside the product medium passage through-holes (256), the fluid flow path (257) leading to at least one of the product medium passage through-holes (256).
Resumen de: CN121039328A
A solid-state oxide cell stack has at least one connection plate between the solid-state oxide cell stack and adjacent end plates, between two adjacent end plates, and/or between adjacent five solid-state oxide cell sub-stacks.
Resumen de: WO2024223362A1
The invention provides an electrochemical stack (1) comprising a plurality of electrochemical cells (2) oriented horizontally and arranged between a top plate (4) and a bottom plate (3) of the stack (1), wherein the top plate (4) and the bottom plate (3) are braced relative to one another by a bracing means (5). At least one connection for supplying gaseous and/or liquid media to or removing them from the electrochemical cells (2) is provided on the top plate (4). The top plate (4) has suspension means (17) configured to fasten the electrochemical stack (1) to a frame (15), wherein the bottom plate (3) is free-floating. The mounting assembly for mounting the electrochemical stack comprises a frame (15), on which the electrochemical stack (1) rests with its suspension means (17) such that the bottom plate (3) is free-floating and the electrochemical cells (2) are oriented horizontally.
Resumen de: WO2024223472A1
A method for storing hydrogen in a reactor or a synthesis loop comprising the steps of (a) providing a gaseous stream of a reaction compound; (b) providing an excess of a hydrogen stream as required for stoichiometric molar ratio of reactants to hydrogen in the synthesis loop or reactor from an electrolysis unit; (c) storing the excess of hydrogen provided in step (b) by introducing at least an amount of the hydrogen stream into the gaseous stream of a reaction compound and to provide a mixed stream of hydrogen and gaseous reaction compound with at least 25 mol % excess hydrogen than what is required for a reaction of the reaction compound with hydrogen in the hydrogen stream; (d) introducing the mixed stream into the reactor or the synthesis loop; (e) withdrawing a mixed stream of gaseous reaction product and unreacted gaseous hydrogen and reaction compound from the reactor or the synthesis loop; (f) separating the reaction product from the unreacted gaseous hydrogen and reaction compound (g) recycling all or a part of unreacted amounts of hydrogen and reaction compound to the reactor or synthesis loop.
Resumen de: AU2024324493A1
A membrane-electrode assembly for a water electrolyser is provided. The membrane- electrode assembly comprises a polymer electrolyte membrane with a first face and a second face; an anode catalyst layer on the first face of the membrane, the anode catalyst layer comprising an oxygen evolution reaction catalyst; and a porous web of polymer fibres in contact with the anode catalyst layer, the polymer fibres comprising a conductive metal additive.
Resumen de: US20260049408A1
An electrolysis system includes an electrolyzer stack and a contamination mitigation system. The electrolyzer stack includes an injection port fluidly connected with a cathode compartment of the electrolyzer stack. The contamination mitigation system is configured to remove ions from the electrolyzer stack to mitigate ion contamination in the electrolyzer stack. The contamination mitigation system includes a storage tank including formic acid therein and an injection line fluidly coupled between the storage tank and the injection port. The injection line is configured to direct the formic acid from the storage tank to the injection port for injection into the cathode compartment of the electrolyzer stack.
Resumen de: CN121593092A
本发明提供一种能够抑制电解质膜的进一步劣化的水电解系统。水电解系统具有氢极、氧极、以及位于氢极与氧极之间的电解质膜，并且进一步具备：劣化检测部，其检测电解质膜的劣化状况；以及氢调压部，在水电解系统启动时，氢调压部根据检测出的所述劣化状况，对在氢极中产生的氢的压力的上升速度和压力的上限值中的至少一方进行调整。
Resumen de: WO2026040290A1
A hydrogen evolution electrocatalyst, a preparation method therefor, and the use thereof. The hydrogen evolution electrocatalyst comprises a nickel foam substrate, a Ni3S2 nanosheet layer and a graphdiyne coating layer; at least part of the outer surface of the nickel foam substrate is provided with the Ni3S2 nanosheet layer; nickel atoms in the Ni3S2 nanosheet layer come from the nickel foam substrate; at least part of the outer surface of the Ni3S2 nanosheet layer is provided with the graphdiyne coating layer. The hydrogen evolution electrocatalyst has the characteristic of high catalytic activity.
Resumen de: US20260055516A1
A water electrolysis cell includes a membrane-electrode assembly, a frame body made of resin that is provided along a peripheral edge of the membrane-electrode assembly, and a first separator and a second separator that face each other through the membrane-electrode assembly and the frame body and are joined to each other by the frame body. An outer peripheral portion of the membrane-electrode assembly is extended to between a first face of the frame body and the first separator. A surface of the first face includes an antioxidant.
Resumen de: CN120787177A
The invention provides a ruthenium catalyst for ammonia decomposition reaction and a production method thereof. The ruthenium catalyst exhibits a conversion rate of almost 100% at a reaction temperature of 550 DEG C, even further exhibits a conversion rate of 93.6% or more at 500 DEG C, and also exhibits a conversion rate of about 60% or more at a low reaction temperature of 450 DEG C, so that the catalyst has excellent ammonia decomposition activity and low manufacturing cost, and can be used in the field of catalytic cracking. And therefore, the method is economical for ammonia decomposition processes even in large-scale decomposition processes at relatively low temperatures.
Resumen de: MA73371A1
A Solid Oxide Cell stack has at least one connection plate between the solid oxide cell stack and an adjacent end plate, two adjacent end plates and/or between adjacent solid oxide cell sub-stacks.
Resumen de: KR20260026808A
수소 생산 시스템이 제공된다. 본 발명의 일 측면에 따른 수소 생산 시스템은 물과 유기 연료를 이용하여 수소 혼합 유체를 생산하는 제1 수소생성기와, 상기 제1 수소생성기로 유입되는 상기 물과 상기 유기 연료를 가열하는 하나 이상의 히터를 포함하는 제1 수소생성부; 상기 제1 수소생성부에 상기 유기 연료를 공급하는 연료공급부; 상기 제1 수소생성부에 상기 물을 공급하는 물공급부; 및 상기 수소 혼합 유체로부터 수소 기체를 분리하는 흡착부;를 포함하되, 상기 제1 수소생성부는 상기 제1 수소생성기의 하류에 제1 열교환부를 더 포함하고, 상기 제1 수소생성기로 공급되는 상기 물은 상기 제1 열교환부를 경유하여 상기 수소 혼합 유체와 열교환한 후에 상기 제1 수소생성기로 공급될 수 있다.
Resumen de: CN120857975A
The invention discloses a catalyst for ammonia dehydrogenation, a preparation method thereof and a method for preparing hydrogen by using the catalyst. The disclosed catalyst for ammonia dehydrogenation comprises a clay, and an alkali metal and ruthenium impregnated in the clay.
Resumen de: KR20240154110A
The present invention relates to a method for preparing a complex metal catalyst in the form of a tri-metal of ruthenium, yttrium, and potassium by using a thermally transformed delta-alumina support and to a method for preparing hydrogen through an ammonia cracking reaction using the same. An ammonia cracking catalyst according to the present invention adjusts the ratio of ruthenium/potassium + yttrium, along with a thermally transformed alumina support in a specific phase, even when using a low content of ruthenium metal, minimizes the contents of chlorine and nitrogen compounds, which are impurities in the catalyst, and localizes active metals in the catalyst, thereby achieving a very high ammonia conversion rate and hydrogen production efficiency even at low temperatures, compared with a catalyst having the same content of the ruthenium metal.
Resumen de: US20260048995A1
A method for manufacturing nano metal oxides and hydrogen includes the following steps: Step A, providing a first reactor, and placing a metal material, an alcohol compound, and a first catalyst in the first reactor and applying heating thereto for reacting to generate a metal alkoxide compound, while simultaneously generating a substantial amount of hydrogen; and Step B, providing a second reactor, and, after the metal material in the first reactor has fully reacted in Step A, transferring remaining solution in the first reactor into the second reactor, and adding a second catalyst and a controlled amount of water, and applying appropriate heating to generate nano metal oxide in powder form. As such, effects of significant reduction of production cost, enhancement of safety, widespread application of hydrogen fuel cells, extremely low carbon emissions, being defined as “green hydrogen”, and reduction of storage costs and risks can be achieved.
Resumen de: WO2026041485A1
The present invention relates to a bipolar plate (100) for an electrolysis system (200), wherein the bipolar plate (100) comprises: - a main body (101) having a first side (103) and a second side (105) opposite the first side (103), wherein a plurality of channels (107) run at least on the first side (103) from a first end to a second end of the bipolar plate (100) opposite the first end, wherein guide paths (109) are formed between respective adjacent channels (107), and wherein respective channels (107) comprise a number of openings (111) which are configured to guide fluid flowing through the channels (107) into the guide paths (109).
Resumen de: DE102025110831A1
Eine Wasserelektrolysezelle beinhaltet eine Membran-Elektroden-Anordnung, einen Rahmenkörper aus Harz, der entlang einer Umfangskante der Membran-Elektroden-Anordnung bereitgestellt ist, und einen ersten Separator und einen zweiten Separator, die einander durch die Membran-Elektroden-Anordnung und den Rahmenkörper gegenüberliegen und durch den Rahmenkörper miteinander verbunden sind. Ein äußerer Umfangsabschnitt der Membran-Elektroden-Anordnung erstreckt sich bis zwischen einer ersten Fläche des Rahmenkörpers und den ersten Separator. Eine Oberfläche der ersten Fläche beinhaltet ein Antioxidationsmittel.
Resumen de: WO2026042828A1
Problem To provide a water electrolysis method and a water electrolysis system with which water electrolysis can be highly efficiently performed under non-extreme pH conditions. Solution Provided is a water electrolysis method in a buffer solution having a pH of 7 to 12, wherein the buffer solution is composed of an electrolyte solution containing at least one cation species selected from the group consisting of alkali metal cations and at least one anion species selected from the group consisting of borates and carbonates, and the electrolyte solution contains 0.1 to 6.0 mol/kg of phosphate ions.
Resumen de: WO2026040290A1
A hydrogen evolution electrocatalyst, a preparation method therefor, and the use thereof. The hydrogen evolution electrocatalyst comprises a nickel foam substrate, a Ni3S2 nanosheet layer and a graphdiyne coating layer; at least part of the outer surface of the nickel foam substrate is provided with the Ni3S2 nanosheet layer; nickel atoms in the Ni3S2 nanosheet layer come from the nickel foam substrate; at least part of the outer surface of the Ni3S2 nanosheet layer is provided with the graphdiyne coating layer. The hydrogen evolution electrocatalyst has the characteristic of high catalytic activity.
Resumen de: WO2026039871A1
The present disclosure relates to hydrogen storage mediums comprising sodium borohydride, magnesium oxide, and magnesium which release hydrogen when contacted with a proton source. The present disclosure also relates to methods of producing hydrogen storage mediums.
Resumen de: US20260054247A1
The invention relates to a device, stacked plate reactor and to a method for investigating chemical processes to be carried out simultaneously or almost at the same time on a large number of functional element variations of the process parameters.
Resumen de: US20260055524A1
Low-cost and earth abundant, Ni1-xMox alloy nanocrystals, with sizes ranging from 18-43 nm and varying Mo composition (0.0-11.4%), were produced by a colloidal chemistry method for alkaline HER reactions. For a water splitting current density of −10 mA/cm2, these alloys demonstrate over-potentials of −62 to −177 mV, which are comparable to commercial Pt-based electrocatalysts (−68 to −129 mV). The cubic Ni0.934Mo0.066 alloy nanocrystals exhibit the highest activity as alkaline HER electrocatalysts, outperforming commercial Pt/C (20 wt %) catalyst.
Resumen de: US20260055523A1
The technology generally concerns novel aerogels of mixed metal oxides and uses thereof as electrocatalysts.
Nº publicación: US20260055522A1 26/02/2026
Solicitante:
RSJ OOSM B V [NL]
RSJ Oosm B.V
Resumen de: US20260055522A1
Provided herein is a hydrogen gas production assembly includes a hydrogen gas production device, a container including an aqueous electrolyte solution, a storage container for storing produced hydrogen gas an input providing the aqueous electrolyte solution from the container to the hydrogen gas production device and an output for transferring produced hydrogen gas from the hydrogen gas production device to the storage container.
BOPI
Sede Electrónica
