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905
results.
Updated on
02/04/2026 [07:04:00]
Results 675 to 700 of 905
Absstract of: CN120981610A
The invention relates to a membrane electrode assembly (1) for a water electrolyser, comprising an anode (2), a cathode (3) and a hydrocarbon membrane (4) located between the anode (2) and the cathode (3), further comprising a first gas recombination layer (5) arranged between the anode (2) and the hydrocarbon membrane (4), in which at least one adhesion layer (6) is arranged between the gas recombination layer (5) and the hydrocarbon membrane (4), wherein the adhesive layer (6) comprises at least one ceramic material (7) and a proton-conducting polymer (8).
Absstract of: CN121013921A
The invention provides a porous transport layer for an electrolytic cell or for a fuel cell, the porous transport layer comprising:-a first non-woven layer having metal fibres, the first non-woven layer having metal fibres being arranged for contacting a proton exchange membrane, wherein the first non-woven layer having metal fibers comprises metal fibers having a first equivalent diameter, and wherein the first non-woven layer having metal fibers has a first surface roughness and a first porosity; -a second non-woven layer having metal fibers, where the second non-woven layer having metal fibers comprises metal fibers having a second equivalent diameter, where the second non-woven layer having metal fibers has a second surface roughness and a second porosity, where the first surface roughness is less than 10 mu m, and the second surface roughness is less than 10 mu m. The first equivalent diameter is less than the second equivalent diameter, the first surface roughness is at least 20% less than the second surface roughness, e.g. In the range of 20% to 120%, where the first porosity is at least 10% less than the second porosity, e.g. In the range of 10% to 50%, and where the first nonwoven layer is metallurgically bonded to the second nonwoven layer.
Absstract of: WO2024208792A1
A methanol plant and a process for the production of methanol is provided. A hydrogen recovery section receives off-gas stream from the methanol synthesis section and outputs a hydrogen-rich stream, which is recycled upstream the methanol synthesis section.
Absstract of: CN120981421A
A hydrogen production system comprising: a first electrode having an electrocatalyst, a second electrode having an electron donor material comprising a plurality of active sites, the second electrode configured to release electrons from the active sites within a predetermined working potential range below a working potential triggering an oxygen evolution reaction; a first electrolyte in contact with the first and second electrodes, the electrolyte being a source of hydrogen protons; and a power source configured to provide the system with the predetermined operating potential range to release electrons from the second electrode and transfer electrons to the first electrode such that hydrogen protons combine with the electrons to produce hydrogen gas.
Absstract of: EP4692424A1
It is an object of the present invention to provide a steam electrolysis device and a steam electrolysis method, which have high energy efficiency. The present invention relates to: a steam electrolysis device, comprising an anode electrode chamber, a cathode electrode chamber, and an ion conductor disposed between these electrode chambers, wherein steam in an amount more than twice the amount of hydrogen generated is supplied to at least one selected from the anode electrode chamber and the cathode electrode chamber, and 50% or less of the supplied steam is electrolyzed; and a steam electrolysis method using the steam electrolysis device.
Absstract of: EP4691992A1
Provided is a method for producing a highly active oxygen carrier at low cost, and a method for producing hydrogen and an apparatus for producing hydrogen using the highly active oxygen carrier.SolutionA method for producing an oxygen carrier of the present invention is a method for producing an oxygen carrier formed of an activated iron titanate containing an alkali titanate and an iron oxide by calcining a mixture of iron titanate particles and an alkali component. The mixture of the iron titanate particles and the alkali component is prepared by any of: physically mixing the iron titanate particles and an alkaline compound; and spraying an aqueous solution of the alkaline compound to the iron titanate particles or impregnating the iron titanate particles with the aqueous solution of the alkaline compound and then drying the sprayed or impregnated iron titanate particles.
Absstract of: EP4693486A1
The invention relates to an electrocatalytic electrode comprising a coating film on an electrically conductive base substrate that includes a non-stoichiometric mixed oxide dispersed in the film, including a mixture of iron and vanadium, in a metal-organic matrix, the organic part of which includes the mixed oxide dispersed therein. The electrocatalytic electrode can be used for the production of molecular hydrogen.The invention also relates to a method for producing the electrocatalytic electrode and the use of the electrocatalytic electrode for the improved production of molecular hydrogen by means of at least water hydrolysis, alkaline water electrolysis, alkaline electrolysis via ion exchange, as a selective electrode and as an electrode for the oxidation of organic compounds in an aqueous solution.
Absstract of: EP4691968A1
A process (100) for producing a hydrogen product (20) from a feedstock stream (10), the process (100) comprising the following steps:- performing a combustion of a fuel gas (S11) to bring a heat input to the process (100) thereby generating a flue gas (52),- pre-heating the ammonia stream (S3), said preheating being realized in a first heat exchanger (4) arranged to heat the ammonia stream by heat exchange with the flue gas,- sending the pre-heated ammonia stream (12) to a vaporizer (5) and vaporizing (S4) said pre-heated ammonia stream,- sending the vaporized ammonia (14) from said vaporizer (5) as said feedstock stream (S6) and/or sending the vaporized ammonia from said vaporizer as said fuel to said combustion (S11).
Absstract of: EP4691970A1
The invention relates to a process for producing a hydrogen product (3) from a feedstock stream (4), said process comprising the following steps:- providing an ammonia stream (8);- sending the ammonia stream (8) to a vaporizer (6) configured to receive said ammonia stream (8) and to vaporize said ammonia stream (8) so as to obtain a vaporized ammonia stream (10); and- controlling the temperature of the vaporized ammonia stream (10) by injecting a cooling medium (16) into the vaporized ammonia stream (10) thereby obtaining a temperature-controlled ammonia stream (18).
Absstract of: EP4692422A1
The present invention relates to an electrode for the electrolysis of, in particular, alkaline water solutions. The electrode has a 3D-knitted metal structure in the form of a net. The metal is predominantly made of nickel. The invention also relates to a corresponding electrolysis cell and its use for the electrolysis of alkaline aqueous solutions.
Absstract of: EP4691967A1
Die Erfindung betrifft ein Katalysatorsystem zur Spaltung von Ammoniak in Wasserstoff und Stickstoff, umfassend mindestens Rohr mit einer zentral durch das innere des Rohrs verlaufenden Achse, wobei in dem Rohr mindestens zwei koaxial angeordnete Bereiche, in Form von einem ersten Bereich entlang der zentralen Achse und mindestens einem den ersten Bereich umgebenden weiteren Bereich, ausgebildet sind, und wobei der erste Bereich ein erstes Katalysatormaterial und der mindestens eine weitere Bereich mindestens ein weiteres Katalysatormaterial enthält, dadurch gekennzeichnet, dass a) das erste Katalysatormaterial mindestens ein Metall aufweist, das ausgewählt ist aus der Gruppe bestehend aus Edelmetallen und Nicht-Edelmetalle, und b) das mindestens eine weitere Katalysatormaterial mindestens ein Nicht-Edelmetall aufweist. Das erste und das mindestens eine weitere Katalysatormaterial sind verschieden.
Absstract of: CN120898031A
The present invention relates to a composition comprising from about 90% to about 99.99% by weight of one or more non-crosslinked fluorinated sulfonyl fluoride polymers and from about 0.01% to about 10% by weight of one or more noble metal catalysts, based on the total weight of the composition, wherein the one or more noble metal catalysts are uniformly distributed throughout the one or more non-crosslinked fluorinated sulfonyl fluoride polymers. Such compositions may be formed as cation exchange precursors, for example by extrusion, and, after treatment, form cation exchange membranes. The resulting films and membranes have a noble metal catalyst uniformly distributed throughout the layer of the catalyst-containing polymer.
Absstract of: CN120936755A
The present application relates to an electrolytic cell battery cell having a battery layer (1314) comprising an electrochemically active battery region (1350), the battery layer (1314) having a first side (1315a) and a second side (1315b). The cell defines a first fluid flow region (1360) for delivering fuel to the first side (1315a) of the cell layer (1314) and a second fluid flow region (1365) for discharging fluid from the second side (1315b) of the cell layer (1314). A cross-sectional area of the second fluid flow region (1365) is less than a cross-sectional area of the first fluid flow region (1360).
Absstract of: CN120752767A
A method of making a catalyst coated ion conducting membrane for use in an electrochemical device, such as a fuel cell or an electrolytic cell, is provided. The method includes providing an electrolyte membrane having a first face and a second face, the first face disposed opposite the second face. A first catalyst ink is deposited onto the first side of the electrolyte membrane to form a first wet catalyst layer, and then dried to form a first catalyst layer on the first surface of the electrolyte membrane. The first catalyst ink comprises a first ionically conductive polymer; a first electrocatalyst; and a first dispersant. Subsequently, a second catalyst ink is deposited onto a second face of the electrolyte membrane to form a second wet catalyst layer and dried to form a second catalyst layer. The second catalyst ink comprises a second ionically conductive polymer; a second electrocatalyst; and a second dispersant. Before depositing the second catalyst ink onto the second side of the electrolyte membrane, the first catalyst layer is subjected to a temperature A of 130 DEG C or more, and the second catalyst layer is subjected to a temperature B lower than the temperature A.
Absstract of: CN120882906A
A porous transport layer for an electrolytic cell or for a fuel cell, the porous transport layer comprising: a first non-woven layer having metal fibers, the first non-woven layer having metal fibers being arranged for contacting a proton exchange membrane, where the first non-woven layer having metal fibers comprises metal fibers having a first equivalent diameter, and the second non-woven layer having metal fibers having a second equivalent diameter; wherein the first non-woven layer having metal fibers has a first surface roughness and a first porosity,-a second non-woven layer having metal fibers wherein the second non-woven layer having metal fibers comprises metal fibers having a second equivalent diameter, wherein the second nonwoven layer having metal fibers has a second surface roughness and a second porosity wherein the first surface has a material ratio of less than 5% material at a height of 5 mu m and greater than 70% material at a depth of-5 mu m, the first equivalent diameter is less than the second equivalent diameter, the first surface roughness is at least 20% less than the second surface roughness, and the second surface roughness is at least 20% less than the second surface roughness. The first porosity is at least 10% less than the second porosity, such as in the range of 20% to 120%, for example, the first porosity is at least 10% less than the second porosity, such as in the range of 10% to 50%, and wherein the first nonwoven layer is metallurgically bo
Absstract of: CN121039917A
Systems and methods are provided for an electrolysis plant interconnecting a renewable energy source (22) and a power grid (20). The system includes a power source (22) and an electrolysis plant (30) including electrolysis equipment (32) connected to the power source (22) to energize the electrolysis equipment to respective operating conditions. The control system (40) is connected to the power source (22) and the power grid (20). Upon detection of a power failure or otherwise insufficient power supply of the renewable power source, the control system is configured to bring the electrolysis device to a corresponding standby condition. The electrolysis device is connected to an electrical grid to energize the electrolysis device to a standby condition. Optionally, a backup power supply (26) is connected to the control system such that the backup power supply is configured to energize the control system upon detecting that the renewable power source and the grid are simultaneously powered off or are simultaneously otherwise insufficient in power supply.
Absstract of: CN121013925A
The invention relates to a membrane electrode assembly (1) for a water electrolyser, comprising an anode (2), a cathode (3) and a hydrocarbon membrane (4) located between the anode (2) and the cathode (3), further comprising a first gas recombination layer (5) arranged between the anode (2) and the hydrocarbon membrane (4) wherein the first gas recombination layer (5) comprises a noble metal (6), a ceramic material (7) and a proton conducting polymer (8), and wherein the volume fraction of the proton-conducting polymer (8) is 24 to 84 vol%, in particular 35 to 75 vol%, and in particular 46 to 65 vol%, based on the total volume of the gas recombination layer (5).
Absstract of: CN121496474A
本发明公开了一种高韧性碱性电解水制氢复合隔膜及其制备方法，属于电解水制氢复合隔膜的技术领域，所述复合隔膜包括聚砜、软链段单体、催化剂、1wt%~5wt%致孔剂和基于硅烷偶联剂改性的无机纳米氧化物颗粒，所述聚砜与硅烷偶联剂改性的无机纳米氧化物颗粒的质量比为1：3~8；所述无机纳米氧化物颗粒为二氧化硅、二氧化钛、二氧化锆中的任意一种或者多种，且颗粒中位粒径为D50=0.2μm~1μm。本发明通过体系内接枝柔软链段构建互穿网络结构，从而显著提升隔膜的韧性，使其在液氮极端低温环境下仍能保持抗脆断性能，为隔膜在寒冷地区的应用提供了潜在解决方案，具有较好的实用性。
Absstract of: CN121490749A
本发明涉及光催化技术领域，具体涉及一种锶铋钒氧化物光催化剂及其制备方法与应用，光催化剂的化学式为Sr3.59Bi19.41V4O42，其晶体结构属于正交晶系，空间群为Immm，是一种由阳离子三重板层构成的独特层状结构；光催化剂通过熔盐法合成，在可见光下表现出光催化分解水产氧活性。本发明通过将SrO、Bi2O3和V₂O₅前驱体与熔盐介质混合研磨后，经程序升温煅烧合成目标产物；该方法所制备的催化剂具有高结晶度、缺陷少、形貌规整的特点，其光催化产氧性能显著优于传统固相法合成的同组分样品，可在波长≥420 nm的可见光照射下，以硝酸银、硝酸铁、氯化铁或者铁氰化钾水溶液为牺牲剂体系实现光催化分解水产氧。
Absstract of: AU2024303309A1
The present invention provides a method of controlling an electrolyser cell stack within a system having a fluid temperature control system, a current control system, a voltage monitoring system, monitoring/control systems for the temperatures of the fluid inlet and outlet, by controlling the current to a fixed value, calculating a temperature delta between the fluid inlet and outlet, and adjusting the fluid input temperature if the delta is greater than a threshold value. The present invention also provides a method of determining a stack operating condition is the temperature delta as measured above is lower than a threshold value. The present invention also provides a control device and computer program capable of executing the method as outlined above.
Absstract of: AU2023449815A1
A system and method of making hydrogen from water. A cylindrical reaction vessel is provided with an outer shell, a central shaft, and one or more concentric inner tubes separated by annular spaces. Water is delivered to the annular spaces by a water pump through an inlet defined in the reaction vessel. The water courses along a tortuous flow path. That path begins at an inner annular space around a central shaft. It ends at an outer annular space. The water emerges from the reaction vessel through an outlet associated with a manifold. A high-frequency vibratory stimulus is applied to the reaction vessel and water. Water molecules are dissociated into hydrogen molecules and oxygen atoms. These reaction products are delivered through the manifold along an effluent flow path to a receiving pressure vessel before deployment to a sub-assembly for harnessing clean energy.
Absstract of: CN121497514A
本发明公开了一种基于发动机尾气余热的等离子体氨分解制氢装置，包括发动机、液氨瓶、等离子体氨分解反应器、温度传感器、氢气罐及等离子体电源。发动机运行时，液氨经汽化器汽化为气态氨，一部分进入发动机燃烧，另一部分与发动机尾气换热后进入反应器。同时，温度传感器实时监测尾气温度并反馈至ECU，ECU根据尾气温度输出控制信号到等离子体电源。尾气温度高于700 K时，关闭等离子体电源，依靠热催化实现氨气分解；当尾气温度低于700 K时，触发等离子体电源并进入动态调节模式，采用分阶段上电策略，先低功率预放电保证放电稳定性，再根据需求逐步提升功率。反应器内氨气分解生成氢气和氮气，产物混合气部分储存，部分作为发动机燃料使用。
Absstract of: CN121496410A
本申请属于氢能源制备领域，具体公开了一种萃取辅助无膜电解水制氢方法及装置，包括：S1将电解液注入无膜电解槽内，S2执行电解制氢，S3收集析氢电极上析出的氢气，监测电解电压，在其上升幅度超过设定值时，中断制氢，S4将有机液相注入到电解液中，以促进有机液相萃取溴/碘单质，后将全部有机液相和部分电解液一起回收至第一容器中，S5重新开启外界电源以重启电解制氢，向第一容器中加入抗坏血酸，用于还原溴/碘单质，同时获得脱氢抗坏血酸，S6持续电解制氢同时，将第一容器的电解液重新回流至电解槽中。本发明同时提供了实现以上方法的装置。本发明方法解决了现有技术中无膜电解水制氢工艺连续循环性不足和制氢效率不足的问题。
Absstract of: AU2024281599A1
A multi-tier integrated power-to-ammonia system includes a converter for generating ammonia and heat through a reaction involving a compressed mixture of hydrogen and nitrogen gases. The system includes a steam generator that can generate steam using the heat from the reaction, and a reversible solid-oxide system in fluid communication with the steam generator that can separate the steam into oxygen gas and hydrogen gas.
Nº publicación: CN121496465A 10/02/2026
Applicant:
绵阳职业技术学院
Absstract of: CN121496465A
本发明公开了一种Co2P/Fe2P异质结纳米片阵列材料及其制备方法和应用，属于电催化材料技术领域。本发明提供的制备方法包括：将预处理后的泡沫镍置于含钴盐、铁盐、尿素和氟化铵的前驱体溶液中，通过水热反应在其表面生长CoFe‑LDH纳米片阵列前驱体；随后在惰性气氛下进行低温磷化处理，将前驱体转化为Co2P/Fe2P异质结，最终得到生长于泡沫镍上的Co2P/Fe2P异质结纳米片阵列材料。该材料在碱性电解质中表现出优异的双功能电催化活性与稳定性，用于全水分解时仅需1.50V的低槽压即可驱动20 mA cm‑2的电流密度。本发明工艺简单、成本低廉，为高效、稳定的非贵金属水分解催化电极的制备提供了新方案。
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