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824
results.
Updated on
06/10/2025 [06:57:00]
Results 775 to 800 of 824
Absstract of: US2025250694A1
A membrane electrode assembly includes a cathode portion disposed on one end and an anode portion disposed on an opposite end from the cathode portion. The membrane electrode assembly also includes a cathode ionomer layer disposed adjacent the cathode portion and an anode ionomer layer disposed adjacent the anode portion. Further, the membrane electrode assembly may include one or more support layers disposed between the cathode ionomer layer and the anode ionomer layer. Additionally, the anode ionomer layer includes a plurality of gas recombination catalysts in a graded dispersion such that a portion of the anode ionomer layer disposed closer to the anode portion includes a higher concentration of gas recombination catalysts than a portion of the anode ionomer layer disposed closer to the cathode portion.
Absstract of: CN120391000A
An electrochemical cell system (100) comprising: an electrochemical cell arrangement (10); a control unit (20) configured to operate the electrochemical cell arrangement (10) only as an electrolytic cell or as a fuel cell; a heating unit (40) located outside the electrochemical cell arrangement (10), the heating unit being thermally coupled to the electrochemical cell arrangement (10) and the heating unit being configured to alternately store heat from the electrochemical cell arrangement (10) to the heating unit (40) and supply heat from the heating unit (40) to the electrochemical cell arrangement (10); and a transfer arrangement (30) configured to alternately transfer heat from the electrochemical cell arrangement (10) to the heating unit (40) and from the heating unit (40) to the electrochemical cell arrangement (10).
Absstract of: CN120443232A
本发明属于碱性电解水制氢领域，具体涉及自活化高熵合金OER催化电极及其制备方法和碱性OER应用。该高熵合金的成分为AxBy，A由Fe、Co、Cr、Ni中至少两种元素组成，B为W、Mo或其组合。其中，优选高熵合金(FeCoCrNi)xWy具有共晶结构，基于共晶高熵合金混合焓特性，通过合金化和物理冶金手段可以实现共晶组织调控；其次，这种共晶高熵合金不需要任何处理可以直接用作碱性OER催化电极，在碱性环境大电流密度条件下进行OER过程中会自发活化，自重构形成多孔结构，极大提高材料比表面积，改善传质、气体扩散过程，提升材料催化性能。
Absstract of: WO2024142618A1
A gasket device (1) comprises a gasket (2) and a spacer (3). The spacer (3) supports separators (101, 102) which are members facing each other and an electrolyte membrane (104) between the separators (101, 102) and the electrolyte membrane (104) such that the separators (101, 102) and the electrolyte membrane (104) face each other via spaces (100a, 100b). The gasket (2) surrounds the space (100a) or the space (100b) between the separator (101) or the separator (102) and the electrolyte membrane (104). Moreover, the spacer (3) surrounds the gasket (2) from the outer side between the separators (101, 102) and the electrolyte membrane (104). The gasket (2) and the spacer (3) are in contact with each other in the expanding direction of the spaces (100a, 100b).
Absstract of: US2025250687A1
A water electrolysis system includes a flow rate adjusting valve for relatively changing a first flow rate which is a flow rate of water flowing through a first flow path portion extending from a first water lead-out unit, and a second flow rate which is a flow rate of water flowing through a second flow path portion extending from a second water lead-out unit.
Absstract of: CN120202324A
The invention relates to a stack module having at least one solid oxide electrolysis stack comprising a plurality of stacked solid oxide electrolysis cells, in which the stack module comprises two gas inlet connections and two gas outlet connections. According to the invention, at least one solid oxide electrolysis stack is encapsulated in a metal container, with two gas inlet connections and two gas outlet connections connected to the metal container. The invention further relates to a solid oxide electrolyzer having at least one stacked module and to a method for replacing a stacked module of a solid oxide electrolyzer.
Absstract of: CN120440986A
本发明涉及一种具有片状纳米花形貌的镍铁层状双氢氧化物及其制备方法与应用，该镍铁层状双氢氧化物的制备方法包括以下步骤：S1、将乙酸镍溶解于有机溶剂或有机溶剂与水的混合溶剂中制备第一溶液；将亚铁盐溶解于水中制备第二溶液；S2、将第一溶液和第二溶液混合均匀得到混合溶液，经静置陈化得到所述镍铁层状双氢氧化物。该方法操作简单，反应条件温和，设备成本低，合成过程绿色环保；且由上述方法制备的NiFe‑LDH呈现三维纳米花结构，形貌均一，具有高比表面积，可提供更多的活性位点，作为催化剂用于电解水析氧表现出优异的电催化性能，在电化学储能、电催化以及催化氧化等领域具有广阔的应用前景。
Absstract of: KR20250119099A
본 개시는 암모니아 분해반응용 촉매 및 이를 이용하여 암모니아로부터 수소를 제조하는 방법에 관한 것이다. 본 개시에 따른 촉매는 알루미늄 산화물, 란타넘 산화물 또는 이들의 조합을 포함하는 지지체; 루테늄, 코발트, 니켈 또는 이들의 조합을 포함하는 활성금속; 및 알칼리 토금속 및 알칼리 금속에서 선택된 한 종류 이상의 증진제;를 포함하며, 상기 활성금속 및 증진제는 지지체에 담지된 것이다. 상기 촉매는 우수한 활성을 가져 암모니아 분해 반응에서 종래보다 높은 암모니아의 전환율 및 수소 제조효율을 나타낼 수 있다.
Absstract of: WO2025164180A1
This composite comprises a molybdenum compound and a noble metal. The molybdenum compound is at least one compound selected from the group consisting of molybdenum sulfide and molybdenum carbides, and the noble metal is at least one metal selected from the group consisting of platinum and palladium.
Absstract of: WO2025162564A1
A control system for a hydrogen production system is proposed. The hydrogen production system includes a plurality of electrolyzers and a plurality of converter modules each of which is coupled to one or more of the plurality of electrolyzers. The control system includes: a plurality of local controllers each of which is coupled with one or more of the plurality of converter modules and one more of the plurality of the electrolyzers; and a system controller in communication with the plurality of local controllers. The system controller is configured to receive an external dispatch value and electrolyzer state information regarding states of the plurality of electrolyzers, and to determine internal dispatch values for one or more electrolyzer from the plurality of electrolyzers based on the external dispatch value and the electrolyzer state information. A least one local controller from the plurality of local controllers associated with the one or more electrolyzers is configured to receive the internal dispatch values from the system controller, and to control operations of the one or more electrolyzers according to the internal dispatch values.
Absstract of: WO2025163482A1
Process for the production of syngas from carbonaceous waste material and CO2 comprising the following stages: a stage a) comprising the reaction R1 in which the carbonaceous material is reacted with carbon dioxide to obtain carbon monoxide according to the following reaction scheme: R1 CO2 + C = 2 CO; a stage b) of producing H2 and adding it to the carbon monoxide obtained in stage a) to obtain syngas, wherein stage b) comprises at least one of the following stages: bl) the carbon monoxide from the previous stage is reacted with water vapour to obtain carbon dioxide and hydrogen according to the following reaction scheme: R2 CO + H2O = CO2 + H2 b2) producing hydrogen by means of electrolysis of water, which is added to the carbon monoxide from stage a). The invention also relates to the unit in which stages a) and bl) are conducted as well as the related apparatus comprising the aforementioned unit.
Absstract of: WO2025162555A1
The present disclosure relates to a method for producing a purified oxygen-containing stream, the method comprising: heating a Solid Oxide Electrolyzer Cells (SOEC) unit to a SOEC operating temperature; providing a water source or a steam source at a water source or steam source temperature; heating the water source or the steam source to produce a steam stream at a steam stream temperature; providing a sweep gas at a sweep gas temperature; feeding the steam stream and the sweep gas to the SOEC unit to produce an oxygen-containing stream and a hydrogen-containing stream; cooling the oxygen-containing stream to a temperature in the range of about 20°C to about 100°C, preferably about 40°C to about 60°C, more preferably about 44°C to about 55°C, and even more preferably about 50°C; and, after the cooling step, purifying the oxygen-containing stream to produce the purified oxygen-containing stream The present disclosure also relates a system for producing a purified oxygen-containing stream.
Absstract of: WO2025163136A1
A method for controlling a green hydrogen production system (100; 100'), comprising geographically distributed power generating nodes (10, 300; 300') each having at least one node center (320; 320.1, 320.2, 320.3, 320.4) and at least one electrolyzer (13) for generating green hydrogen within the system from the produced electrical energy, wherein each the power generating node (10, 300; 300') comprises multiple PV units (12; 312) and multiple wind turbine generators (WTG) (11; 301...316) as power generating units and wherein the multiple wind turbine generators units (WTG) (11; 301...316) are located in geographically dispersed sites surrounding the node center(s) (320; 320.1, 320.2, 320.3, 320.4), wherein the installed capacity (IC) of the electrolyzer (13) and all other energy consuming devices in the system is smaller than the sum of maximum capacities (MG) of all PV units (12; 312) and wind turbine generators (11; 301...316) available for operation together, wherein the method comprises at least the following steps: a) an energy demand value (EDV) of electrical power required for constantly operating the electrolyzer and other consumers is defined wherein EDV < IC; b) weather conditions in proximity of the power generating units and in windward direction of the PV units (312) are constantly monitored; c) based on weather conditions acquired from monitoring, an expected energy yield value (EEY) is calculated separately for each type of power generating unit and/or for each
Absstract of: WO2025163032A1
The invention relates to an electrolysis device (10) for generating hydrogen from water using an electric current, having a cell stack (11) comprising a plurality of cell stack elements (12) in the form of electrolysis cells; a first pressure sensor (28) for detecting a first hydrogen-side pressure; a second pressure sensor (29) for detecting a second hydrogen-side pressure; and a control device (30) which checks whether the electrolysis device (10) has a leak on the basis of the first pressure measured by the first pressure sensor (28), the second pressure measured by the second pressure sensor (29), and the electric current applied to the electrolysis device (10) for the electrolysis process.
Absstract of: WO2025162963A1
The invention relates to a system consisting of a plurality of electrolysis devices (10), which are accommodated in a frame or shelf (19), for generating hydrogen from water using an electric current. Each electrolysis device (10) has at least the following: a cell stack (11) consisting of a plurality of cell stack elements (12) in the form of electrolysis cells; end plates (14, 15) lying opposite each other, wherein the cell stack (11) consisting of the cell stack elements (12) is provided and compressed between the end plates (14, 15); at least one water supply connection (16) which is formed on the end plates (14, 15) and via which water can be supplied to the respective electrolysis device (10); and at least one water discharge connection (17) which is formed on the end plates (14, 15) and via which water and oxygen can be discharged from the respective electrolysis device (10). At least one pre-separator (20) for oxygen is installed on the frame or shelf (19) and/or in the frame or shelf (19) and/or in the immediate vicinity of the frame or shelf (19) in order to separate oxygen from the water discharged from the electrolysis devices (10).
Absstract of: WO2025163034A1
A hydrogen production facility is disclosed, comprising a plurality of electrolyser stacks arranged for electrolyzing water using an electrolyte and for generating at least a hydrogen-aqueous solution mixture; and a hydrogen separator arrangement for producing a flow of hydrogen from the hydrogen-aqueous solution mixture; wherein the hydrogen separator arrangement comprises a plurality of first stage hydrogen collector separators, the first stage hydrogen collector separators being fluidly coupled to a respective sub-set of the plurality of electrolyser stacks; and wherein the plurality of first stage hydrogen collector separators are fluidly coupled to a downstream hydrogen buffer vessel. A related method is further disclosed.
Absstract of: WO2025162959A1
The disclosure refers to a computer-implemented method for heating up electrolytic units. The method comprises determining whether some electrolytic units of an electrolysis plant require heating up to have them at a temperature within a predetermined range in a future time span; controlling the electrolytic units to power them up based on first electric power available in a current time span; heating up the electrolytic units to have them at the temperature within the predetermined range in the at least one future time span; and repeating the steps such that the heating up is determined for one or more time spans that occur at the same time and/or later than the future time span, thereby repeatedly controlling the temperature of the electrolytic units to be at a temperature within the predetermined range in the future time spans.
Absstract of: WO2025162752A1
A method is disclosed for producing an electrode (4) having a noble metal catalyst for alkaline water electrolysis. The method comprises: (S1) providing the electrode substrate (1); (S2) providing a matrix material (2) and a catalyst material (3) as starting materials for the coating; (S3) mixing the matrix material (2) and the catalyst material (3); and, (S4) coating the substrate (1) with the mixture of matrix material (2) and catalyst material (3) by means of high-velocity oxygen fuel spraying (HVOF). A correspondingly produced electrode (4), an electrochemical cell (10) comprising said electrode, and an electrolyser (20) are also specified.
Absstract of: WO2025163031A1
Aspects of the present disclosure relate to a hydrogen production facility. The hydrogen production facility includes one or more electrolyser stacks to electrolyze water using an electrolyte and generate a hydrogen-aqueous solution mixture and an oxygen-aqueous solution mixture, the one or more electrolyser stacks comprising a plurality of membranes. The facility also includes a hydrogen separator to produce a flow of hydrogen from the hydrogen-aqueous solution mixture and an oxygen separator to produce a flow of oxygen from the oxygen-aqueous solution mixture. The hydrogen separator comprises a hydrogen gas-liquid separation device and a hydrogen coalescing device. The oxygen separator comprises an oxygen gas-liquid separation device and an oxygen coalescing device.
Absstract of: WO2025163393A1
A hydrogen production facility is disclosed, comprising: a plurality of electrolysis systems to electrolyze water using lye; and a mutualized lye circulation system coupled with the plurality of electrolysis systems to circulate the lye among the plurality of electrolysis systems to facilitate electrolyzing the water, the lye circulation system comprising one or more pumps, wherein a number of the one or more pumps is less than a number of electrolysis systems of the plurality of electrolysis systems. A hydrogen production facility comprising first and second modular structures is also disclosed.
Absstract of: CN119604469A
The present invention relates to a method for manufacturing an electrocatalyst for alkaline water electrolysis, said method comprising the steps of: (i) generating an aqueous electrolyte comprising suspended graphene and graphite nanoplatelets having lt in an electrochemical cell; the present invention relates to an electrolytic cell having a thickness of 100 nm, where the electrolytic cell comprises: a graphite negative electrode, (b) a graphite positive electrode, (c) an aqueous electrolyte comprising ions in a solvent, the ions comprising cations and anions, where the anions comprise sulfate anions; and wherein the method comprises the step of passing an electric current through the electrolysis cell to obtain exfoliated graphene and graphite nanosheet structures in the aqueous electrolyte in an amount greater than 5 g/l; (ii) forming an electroplating bath (2) comprising suspended graphene and graphite nanoplatelets in an amount greater than 2 g/l, said acidic electroplating bath comprising an aqueous solution of nickel sulfate and an electroplating solution comprising suspended graphene and graphite nanoplatelets in an amount greater than 5 g/l (thickness lt; 100 nm) of an aqueous electrolyte of step (i); and (iii) electrodepositing a combined layer of Ni or Ni alloy with graphene and graphite particles from the electroplating bath on a support to form an electrocatalyst.
Absstract of: US2025250165A1
Processes of photocatalytically generating molecular hydrogen (H2) and systems for carrying out the processes. Liquid water is contacted with an amount of a ID and/or 2D carbon-doped nanofilament-based photocatalyst material composition and a hole scavenger chemical, optionally under an inert gas purge, at temperature of 100° C. or less, generating gaseous molecular hydrogen by irradiating the liquid water, the hole scavenger chemical, and the photocatalyst for about 1 to 300 hours with at least one sun illumination (UV-Vis light (250-650 nm)).
Absstract of: US2025250187A1
The present disclosure describes a process for producing a reducing liquid comprising providing a liquid; providing a reducing gas and/or a metasilicate; and infusing the reducing gas and/or the metasilicate to the liquid, for the reducing gas and/or metasilicate to react with the liquid to produce a reducing liquid that has an oxidation reduction potential (ORP) value of about −100 mV or more negative. Further described is the process for preparing a reducing gas, which includes the steps of preparing an activator, introducing the activator into an electrolytic reactor, adding water, and applying a direct current to produce the reducing gas. Also described is a system for producing a reducing liquid.
Absstract of: US2025253377A1
The invention relates to an electrochemical cell assembly including a first end plate assembly, a stack of cell repeat units, and a second end plate assembly. The stack is held in a compressed state between the first end plate assembly and the second end plate assembly. The first end plate assembly and/or the second end plate assembly each include an end plate. The electrochemical cell assembly includes an insulation plate located between the end plate and the stack. At least one through-hole is provided in the insulation plate and a sealing insert is provided in the at least one through-hole of the insulation plate, the sealing insert defining a fluid pathway along the stacking direction. The invention also relates to an end plate assembly and a method of manufacturing an electrochemical cell assembly.
Nº publicación: DE102024103045A1 07/08/2025
Applicant:
CWP H1 ENERGY PTE LTD [SG]
CWP H1 Energy Pte. Ltd
Absstract of: DE102024103045A1
Verfahren zur Steuerung eines Systems zur Erzeugung von grünem Wasserstoff, wobei mehrere Photovoltaikanlagen (12) und mehrere Windenergieanlagen als Stromerzeugungseinheiten zur Erzeugung von elektrischer Energie und mindestens ein Elektrolyseur zur Erzeugung von grünem Wasserstoff genutzt werden, wobei die installierte Leistung (IC) des Elektrolyseurs und aller anderen energieverbrauchenden Vorrichtungen in dem Kraftwerk kleiner ist als die Leistung der Summe der maximalen Leistung (MC) der Photovoltaikanlagen (12) und der Windenergieanlagen zusammen, mit folgenden Schritten:a) Definition eines Energiebedarfswerts (EBW) der für den Elektrolyseur und andere Verbraucher erforderlichen elektrischen Leistung, wobei EBW < IC ist;b) Überwachung der Wetterverhältnisse in der Nähe der Stromerzeugungseinheiten und in Luv der Photovoltaikanlagen (12);c) Berechnung eines erwarteten Energieertragswerts (EEW) für jeden Typ von Stromerzeugungseinheit basierend auf den Wetterverhältnissen;d) Zuweisen einer individuellen Arbeitslast für die Photovoltaikanlagen (12) und die Windenergieanlagen, die nach dem folgenden Priorisierungsschema ausgewählt wird:i. wenn der erwartete Energieertragswert EEW(PV) der Photovoltaikanlagen (12) allein ausreicht, um den Energiebedarfswert EBW zu erfüllen, werden alle Photovoltaikanlagen (12) mit Volllast betrieben und alle Windenergieanlagen im Leerlauf betrieben oder abgeschaltet;ii. Wenn der erwartete Energieertragswert EEW(PV) der Photovolt
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