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一种电解水制氢用多孔镍钼合金催化电极及其制作方法

Resumen de: CN122279646A

0001 本发明涉及一种电解水制氢用多孔镍钼合金催化电极及其制作方法，包括提供支撑和导电的镍基底层及其上负载的催化活性层，该催化活性层为多孔结构的镍钼合金，该镍钼合金中含有牺牲金属；其中，镍基底层及其上负载的催化活性层为一体化形成的自支撑结构。该催化电极的制作过程采用两步合金化和最后一步脱合金方法，合金化过程采用表面合金化方式在镍基底表面形成合金，包括机械能助渗法、包埋法、表面化学气相沉积法、电沉积法等，脱合金过程采用气相脱合金或液相脱合金。与现有技术相比，本发明提供的多孔合金催化电极应用于电解水制氢的阴极，析氢反应活性高，性能稳定，且制作方法简单高效，具备实现大规模工业化生产的条件。

Photoelectrochemical water electrolysis system with enhanced onset potential and method for fabricating the same

Resumen de: KR20260098046A

본 발명의 일실시예는 개시전위가 향상된 광양극, 광음극, 이를 포함하는 광전기화학 수전해 시스템 및 이들의 제조방법을 제공한다. 본 발명의 실시예에 따르면, Ge이 도핑된 CZTSSe 광음극 및 FeNiOOH 적용된 BiVO4 기반 광양극 각각에서 향상된 개시전위를 달성한 광전극을 제공하여, 전체 광전기화학 수전해 시스템 적용 시 우수한 성능을 달성할 수 있다.

Procédé pour caractériser un catalyseur

Resumen de: FR3170341A1

Procédé pour caractériser un catalyseur La présente invention concerne un procédé pour caractériser un catalyseur A, comprenant au moins les étapes consistant à :- Mettre en contact une solution aqueuse de pH supérieur ou égal à 11 comprenant au moins un sel de borohydrure avec le catalyseur A ; - Déterminer le potentiel normalisé de circuit ouvert Et(A) ; et - Comparer le potentiel normalisé de circuit ouvert Et(A) à un potentiel normalisé de circuit ouvert Et(B) pré-acquis à un même temps t avec un catalyseur B de référence dans les mêmes conditions que le potentiel normalisé de circuit ouvert Et(A) et/ou comparer le temps t à un temps t’ auquel un potentiel normalisé de circuit ouvert Et’(B) pré-acquis avec un catalyseur B de référence dans les mêmes conditions que le potentiel normalisé de circuit ouvert Et(A) est égal au potentiel normalisé de circuit ouvert Et(A). Figure pour l’abrégé : Néant

一种制备高活性且高稳定性氧化铱催化剂的方法

Resumen de: CN122279653A

0001 本发明公开了一种制备高活性且高稳定性氧化铱催化剂的方法，包括以下步骤：向铱源的水溶液中加入缓释碱，搅拌反应得到铱‑羟基胶体溶液；向铱‑羟基胶体溶液中加入硫酸盐溶液，搅拌反应后加入缓释酸，搅拌直至得到细小沉淀；将沉淀经洗涤、过滤、干燥后，进行分段式热处理得到高活性高稳定性氧化铱催化剂。氧化铱催化剂在1 A/cm<2>条件下，单电池的电解电压达到为1.599‑1.612 V；2 A/cm<2>条件下，单电池的电解电压达到1.746 ‑1.759 V；3 A/cm<2>条件下，单电池的电解电压达到1.885 ‑1.896 V，具有优异的催化活性；且同时，经稳定性测试500 h无衰减，具有较好的稳定性。即该催化剂达到了活性和稳定性的同步提升。

一种碱土金属改性Co基催化剂协同等离子体催化氨分解制氢的方法

Resumen de: CN122276668A

0001 本发明属于催化技术、氨分解氢技术领域，公开了一种碱土金属改性Co基催化剂协同等离子体催化氨分解制氢的方法。通过在制备原料中加入碱土金属硝酸盐的方法，制得碱土金属改性的Co/M‑La<2>O<3>催化剂，并使催化剂与等离子体协同催化氨分解，提高低温下的制氢效率。这一方法制备的Co/M‑La<2>O<3>催化剂具有富电子的活性金属Co。同时，催化剂协同等离子体催化氨分解反应表现出良好的制氢性能，并具有良好的稳定性。

一种两步脉冲电沉积制备镍钨钴三元金属析氧电极的方法及其应用

Resumen de: CN122279696A

本发明公开了一种两步脉冲电沉积制备镍钨钴三元金属析氧电极的方法及其应用。针对Ni2+、Co2+与W6+还原电位差异大、还原动力学不匹配导致单步沉积易出现元素偏析的技术问题，本发明采用“先沉积Ni‑W金属层、后沉积Ni‑Co金属层”的两步脉冲电沉积策略，分步优化镀液组分与脉冲参数，适配不同金属离子的还原需求。该方法包括：镍基基材预处理；在含镍盐和钨盐的溶液中进行第一步脉冲电沉积；再在含镍盐和钴盐的溶液中进行第二步脉冲电沉积，干燥后即得。本发明通过特定的两步沉积，借助脉冲电流的周期性调控，有效优化镍、钨、钴的负载与分散，获得了性能优异的析氧电极，其性能稳定可靠，能够满足规模化工业生产的应用需求。

一种碱性电解水制氢用复合隔膜及其制备方法和应用

Resumen de: CN122279676A

0001 本发明提供一种碱性电解水制氢用复合隔膜及其制备方法和应用，涉及碱性电解水技术领域。所述复合隔膜由聚合物、颗粒填料和多孔格网构成，所述聚合物和颗粒填料混合后位于所述多孔格网的网孔中及网线的两侧构成功能层，所述多孔格网作为支撑层的表面均方根粗糙度不低于200 nm，所述聚合物和所述多孔格网的溶度参数差值不高于10.0 MPa<0.5>。通过控制支撑层的表面粗糙度以及其与聚合物的溶度参数差值，提高其与功能层的结合力。该隔膜机械力学强度被增强，具有高压缩强度、高附着力、低质量磨耗损失率的特点，同时具有低面电阻和高泡点压力的特点，适用于碱性电解水制氢领域，特别适用于加压型电解槽中。

AMMONIA DECOMPOSITION SYSTEM AND METHOD USING SAME

Resumen de: WO2026134854A1

According to exemplary embodiments of the present invention, there may be provided an ammonia decomposition system with enhanced energy efficiency and a method using same by recycling thermal energy generated during an ammonia decomposition process.

GREEN HYDROGEN, SYNTHESIS GAS WITH A REDUCED NITROGEN CONTENT, AND FLUE GAS FOR THE SYNTHESIS OF AMMONIA AND UREA

Resumen de: AU2024399298A1

The invention relates to the synthesis of urea from ammonia and carbon dioxide, wherein the hydrogen required for ammonia synthesis is obtained both by steam reforming of feed natural gas (grey hydrogen) and by electrolysis of water using electricity from renewable energy sources (green hydrogen). As the proportion of green hydrogen increases, the amount of carbon dioxide formed in the synthesis gas during steam reforming is no longer sufficient for the synthesis of urea. Therefore, flue gas, which is formed during the combustion of a fuel gas composed of fuel natural gas and combustion air and which also contains carbon dioxide, is additionally used. The oxygen formed during the electrolysis of water is introduced into the flue gas, and the modified flue gas is fed to a secondary reformer; and/or the fuel natural gas is combusted together with combustion air and the oxygen formed during electrolysis. Excess nitrogen is preferably separated from the synthesis gas before it is used for the synthesis of ammonia.

EFFICIENT USE OF HEAT IN E-METHANOL PLANT

Resumen de: AU2024398716A1

A methanol plant and process for producing methanol are provided. A first SOE section is arranged to receive a carbon dioxide-rich feed and electrolyse it to a carbon monoxide-rich stream. A methanol loop is arranged to receive at least a portion of the carbon monoxide-rich stream and a hydrogen-rich stream and convert them to a crude methanol stream. A first H2O-rich stream is converted to a first steam stream by means of heat from the electrolysis process in the first SOE section. The first steam stream is used it as heat for the distillation of the crude methanol stream in the methanol distillation section.

HYDROGEN GENERATOR WITH PRESSURE RELIEF FUNCTION

Resumen de: US20260176772A1

0000 A hydrogen generator with pressure relief function includes a water tank having an accommodation space for accommodating electrolytic water, an electrolysis module arranged in the accommodation space of the water tank to electrolyze the electrolytic water from the water tank to generate gas comprising hydrogen, a humidifying cup arranged above the water tank to humidify the gas comprising hydrogen and having a humidifying chamber and a gas flow channel which are isolated from each other, and the gas flow channel is connected with the water tank. A first valve component is configured to selectively connect the humidifying chamber and an external environment, and a second valve component is configured to selectively connect the accommodation space and the humidifying chamber. When the electrolysis module stops operating, an external air from the external environment enters into the accommodation space through the first valve component and the second valve component.

CONTROLLABLE RECTIFIER ARRANGEMENT FOR HYDROGEN ELECTROLYSIS

Resumen de: WO2026128931A1

The invention relates to a rectifier arrangement for hydrogen electrolysis, comprising a first transformer (1) for transforming an input voltage U1 into a secondary voltage U1', wherein the transformer (1) has N>1 winding taps (2), and wherein an on-load tap changer (4) is provided that is designed to switch the winding taps (2) of the first transformer (1) such that the output voltage U1' can be switched into N stages, and wherein a second transformer (5) is provided for transforming the secondary voltage U1' into an output voltage U2 having a number M>1 of winding taps (6), wherein a second on-load tap changer (7) connected to the controller (3) is provided, wherein the first transformer (1) is connected in series with the second transformer (5) such that the output voltage U2 can be switched into NxM stages, wherein the transformers (1, 5) are arranged on separate iron cores, and wherein a passive rectifier (8) is provided for generating an output direct current IDC and an output DC voltage UDC.

METHOD FOR PRODUCING AN ELECTRODE FOR USE IN ALKALINE ELECTROLYSIS OF WATER, AND ELECTRODE

Resumen de: AU2024401570A1

The invention relates to a method for producing an electrode (10) for use in alkaline electrolysis of water, the method comprising: providing a metal substrate (12); providing a coating material (26) comprising powder (28) consisting of a catalyst material (20), and comprising non-metal particles (24); and coating at least a portion of the substrate with the coating material. The invention also relates to electrodes produced in this way.

APPARATUSES AND METHODS FOR PRODUCING HYDROGEN

Resumen de: AU2024399357A1

The present disclosure relates to apparatuses for producing hydrogen, and to top-down methods for producing nanoparticles. Different mechanical mills may be used to break down micron sized soil or sand particles and to react the particles with water, particularly sea water.

POROUS ELECTROLYSIS MEMBRANE USING BORON NITRIDE COMPOUNDS AND MANUFACTURING METHOD THEREOF

Resumen de: WO2026054606A1

The present invention relates to a porous water electrolysis separation membrane using a boron nitride compound. More specifically, the porous water electrolysis separation membrane comprises a porous polymer support and a boron nitride compound inserted into the inside of the porous polymer support or formed on a surface thereof. The water electrolysis separation membrane according to the present invention as described above exhibits excellent heat resistance and stability and has smaller pore sizes, thereby reducing the permeability of hydrogen and oxygen and achieving high hydrogen gas purity. In addition, with a reduced thickness, the water electrolysis separation membrane exhibits low sheet resistance and thus increases current density to improve electrolytic cell efficiency.

SEALING GASKET AND ELECTROLYZER

Resumen de: WO2026130046A1

Provided in the present application are a sealing gasket and an electrolyzer. The sealing gasket comprises: an outer sealing portion provided with a hollow structure; and an inner sealing portion at least partially arranged in the hollow structure. The resilience rate of the inner sealing portion is greater than that of the outer sealing portion, and the compressive stress of the outer sealing portion is greater than that of the inner sealing portion, such that when the sealing gasket is clamped and fixed by two adjacent cell frames, the inner sealing portion can exhibit a sufficient sealing capability at an inner sealing position, and the outer sealing portion can have sufficient support strength at an outer sealing position, so as to ensure a cell gap. Thus, on the basis of the differentiated design of the resilience rate and the compressive stress of the outer sealing portion and the inner sealing portion, the outer sealing portion and the inner sealing portion can complement each other's strengths, such that the sealing gasket of the present application can simultaneously meet the requirements for the sealing capabilities and support strength at different positions between cell frames. In addition, the sealing gasket of the present application is also applicable to large electrolyzers.

MEMBRANE ELECTRODE ASSEMBLY, METHOD FOR PRODUCING HYDROGEN, AND HYDROGEN PRODUCTION SYSTEM

Resumen de: US20260176778A1

0000 Provided are a membrane electrode assembly having a structure in which a cathode catalyst layer, a hydroxide ion-conductive membrane, and an anode catalyst layer are laminated in this order, in which a tensile strength (a) and a breaking elongation (b) of a water-swollen body of a polymer contained in the cathode catalyst layer and/or the anode catalyst layer and a tensile strength (c) and a breaking elongation (d) of a water-swollen body of a hydroxide ion-conductive polymer constituting the hydroxide ion-conductive membrane satisfy the following relationships (Ri) and (Rii), a method for producing hydrogen, and a hydrogen production system. 0000 Tensile ⁢ strength ⁢ ( a ) > tensile ⁢ strength ⁢ ( c ) ( Ri ) Breaking ⁢ elongation ⁢ ( b ) > breaking ⁢ elongation ⁢ ( d ) ( Rii )

HYDROXIDE ION-CONDUCTIVE MEMBRANE, METHOD FOR PRODUCING HYDROXIDE ION-CONDUCTIVE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, METHOD FOR PRODUCING HYDROGEN, AND HYDROGEN PRODUCTION SYSTEM

Resumen de: US20260176779A1

0000 Provided are a hydroxide ion-conductive membrane including a porous substrate and a hydroxide ion-conductive polymer disposed at least in pores of the porous substrate and having a thickness of the hydroxide ion-conductive membrane of 5 μm or more and less than 50 μm, in which the polymer has 50% by mole or more of a constituent component (I) derived from a polyfunctional polymerizable monomer having a total of two or more atoms of at least one of an oxygen atom, a sulfur atom, or a nitrogen atom in a structural moiety other than a polymerizable group in constituent components of the polymer, and a method for producing the hydroxide ion-conductive membrane, and a membrane electrode assembly, and a method for producing hydrogen and a hydrogen production system, each using the membrane electrode assembly.

SOLID OXIDE CELL STACK FASTENING APPARATUS AND SOLID OXIDE REACTION APPARATUS USING THE SAME

Resumen de: US20260179976A1

A solid oxide cell stack fastening apparatus, in which downward pressure applied to the solid oxide cell stack is uniform throughout, includes a housing which accommodates a solid oxide cell stack and includes a first coupling part on one side thereof, and a first block which includes a second coupling part and an elastic member in contact with the solid oxide cell stack. The first coupling part and the second coupling part each have screw threads coupled to each other.

SOLID OXIDE ELECTROLYSIS CELL HYDROGEN PRODUCTION SYSTEM AND METHOD USING WASTE HEAT

Resumen de: WO2026135311A1

The present invention relates to a solid oxide electrolysis cell (SOEC) system and, more specifically, to a system capable of improving the energy efficiency of an SOEC system and reducing hydrogen production costs by effectively using waste heat generated during an industrial process. According to the present invention, a SOEC hydrogen production system using waste heat can be provided, the system comprising: an external heat source; a waste heat distribution system, which classifies, according to the temperature, waste heat supplied from the external heat source, so as to supply the classified heat to each heat exchanger; a blower for supplying air; a pump for supplying water; a vaporizer for generating steam by vaporizing the water supplied from the pump; a first heat exchanger group including an air-preheating first heat exchanger for preheating the air supplied from the blower and a steam-preheating first heat exchanger for preheating the steam supplied from the vaporizer; a second heat exchanger group including a steam-generating second heat exchanger, which heats the vaporizer so as to generate the steam from the water, and a steam temperature-maintaining second heat exchanger, which maintains the temperature of the steam; a plurality of high-temperature heat exchangers including an air-heating high-temperature heat exchanger for increasing the temperature of the preheated air and a steam-heating high-temperature heat exchanger for increasing the temperature of the pre

ELECTRODE FOR ELECTROLYTIC EVOLUTION OF HYDROGEN

Resumen de: WO2026132267A1

The invention concerns an electrode for gas evolution in electrochemical processes and a method for its preparation, the electrode comprising a metal substrate provided with a single catalytic coating layer, wherein said catalytic coating layer consists essentially of a rare earth metal selected from praseodymium, cerium and lanthanum and noble metals selected from platinum and palladium, wherein the rare earth metal and the noble metals are present in a form of metals or oxides thereof, wherein said rare earth metal is present in an amount comprised between 20 and 80 wt.% of the total amount of metals in said catalytic coating layer, wherein said noble metals are present in an amount comprised between 20 and 80 wt.% of the total amount of metals in said catalytic coating layer, wherein said platinum is present in an amount comprised between 10 and 70 wt.% of the total amount of metals in said catalytic coating layer, wherein said palladium is present in an amount comprised between 10 and 70 wt.% of the total amount of metals in said catalytic coating, and wherein the catalytic coating layer has a total noble metal load comprised between 1 and 6 g/m2.

WATER ELECTROLYSIS EVALUATION DEVICE AND WATER ELECTROLYSIS EVALUATION METHOD

Resumen de: WO2026133997A1

The present invention provides a water electrolysis evaluation device 100 which accurately evaluates a water electrolysis device by separating or recovering liquid water and water vapor discharged together with an oxygen gas or a hydrogen gas, and which evaluates a water electrolysis device W that electrolyzes water so as to generate an oxygen gas and a hydrogen gas. The water electrolysis evaluation device 100 comprises: a first retainer unit 521 that separates liquid water which is discharged, together with an exhaust gas containing an oxygen gas or a hydrogen gas, from an anode W1 or a cathode W2 of the water electrolysis device W; and a second retainer unit 522 that condenses and separates water vapor which is contained in the exhaust gas that has passed through the first gas-liquid separation unit 521.

REINFORCED COMPOSITE MEMBRANE, MEMBRANE-ELECTRODE ASSEMBLY, AND WATER ELECTROLYSIS CELL

Resumen de: WO2026135433A1

The present disclosure relates to a reinforced composite membrane, a membrane-electrode assembly, and a water electrolysis cell and, more particularly, comprises a dual porous support formed by laminating a first nanoweb and a second nanoweb having different average pore sizes and thus can have an improved water swelling ratio and an improved concentration gradient in the thickness direction, maintain ion conductivity by ensuring a unidirectional channel for ion transport, and have improved mechanical properties and durability.

HYDROGEN PRODUCTION SYSTEM AND HYDROGEN PRODUCTION METHOD

Resumen de: WO2026134881A1

According to exemplary embodiments of the present invention, a hydrogen production system and a hydrogen production method may be provided, in which an iron-based catalyst that was used in an ammonia decomposition reaction may be easily recycled.

HYDROGEN PRODUCTION SYSTEM

Nº publicación: WO2026135312A1 25/06/2026

Solicitante:

POSCO HOLDINGS INC [KR]
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