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976
resultados
Última actualización
04/03/2026 [07:11:00]
Resultados 150 a 175 de 976
Resumen de: CN120958177A
The invention relates to a membrane electrode assembly (1) having an anode (2), a cathode (3) and a hydrocarbon membrane (4) between the anode (2) and the cathode (3). The membrane electrode assembly (1) further comprises a protective layer (5) arranged between the anode (2) and the hydrocarbon membrane (4) and-or between the cathode (3) and the hydrocarbon membrane (4), where the protective layer (5) comprises at least one ceramic material (6) and a fluorine-containing ionomer (7), where the ceramic material (6) is dispersed in the fluorine-containing ionomer (7).
Resumen de: 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).
Resumen de: 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).
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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).
Resumen de: 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).
Resumen de: 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.
Resumen de: 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).
Resumen de: CN121496478A
本发明公开了一种用于电解水制氢系统运行稳定性的控制方法，所述系统包括电解槽、电源、气液分离器、冷却器、循环泵以及检测与执行机构，包括以下步骤：S1：实时监测所述系统的运行状态参数，所述运行状态参数至少包括电解槽温度、电解槽压力、输入电流密度、氢侧与氧侧差压、循环碱液流量或去离子水电阻率；S2：基于所述运行状态参数，通过预设的系统稳定性评估模型。本发明克服了传统单回路控制的局限与干扰问题，使系统面对内外扰动时能整体做出前瞻、平稳且经济的协同响应，不仅在稳态运行时维持全局最优稳定性与能效，更在瞬态与异常工况下通过智能容错与运行点自适应迁移，显著提升系统的鲁棒性、安全性与全生命周期适应能力。
Resumen de: CN121496477A
本申请公开了一种制氢系统及其温度控制方法、装置、存储介质与程序产品。该制氢系统的温度控制方法包括：获取预设时域内的电解槽的功率指令及设备属性参数；其中，预设时域包括连续的多个预设时段，功率指令包括与各预设时段对应的子功率指令；将各子功率指令输入优化温度控制模型，以最小化预设时域内电解槽温度与目标温度之间的偏差为目标，根据设备属性参数计算各预设时段对应的阀门开度指令；将预设时域内的阀门开度指令下发至制氢设备，以基于功率指令和阀门开度指令，控制制氢设备在预设时域内运行。本申请实施例的技术方案可减小电解槽温度与目标温度之间的偏差，提高制氢设备的产氢效率。
Resumen de: CN121499362A
本发明提供一种用于碱性电解水制氢电极催化剂结合力与均匀性的测试方法，包括实验设备搭建和实验操作两个过程，其中，实验设备搭建包括制备测试溶液A、制备测试溶液B、制备防腐支撑板、制备样品和组装测试设备，然后，接通电源进行测试并记录数据。本发明提出了一种能够模拟电极失效的测试方法，相较于传统的测试方法，本发明的测试时间更短，测试方法更加灵活，尤其能够更加直观方便的反应催化剂与电极基材结合能力的强弱。相较于一般的测试方法，本方法具有更加灵活、快速、便捷、时间人力成本更低等特点。
Resumen de: CN121496440A
本发明属于电催化材料与电解制氢技术领域，具体涉及一种复合电催化剂及其制备方法与应用。本发明所述基于高铷高硅锂矿石基为载体的Ni单活性中心复合电催化剂的制备方法，通过对高铷高硅锂矿石进行预处理、酸蚀活化、锂化调控、Ni活性溶液配制、溶剂热负载、焙烧定型等步骤，实现Ni单活性中心在矿石载体上的均匀负载与高效活化。该催化剂应用于尿素电解制氢时，展现出低起始电位、低过电位、高稳定性的优势。
Resumen de: CN121496458A
本发明属于电催化二氧化碳还原反应技术领域，具体公开了Ni‑Co双单原子催化剂及其制备方法和应用，催化剂包括碳载体，原子级分散的Ni单原子，以Ni‑N4构型锚定于碳载体；原子级分散的Co单原子，以Co‑N4构型锚定于碳载体，催化剂中无金属‑金属键。本发明采用上述的Ni‑Co双单原子催化剂及其制备方法和应用，通过Ni‑N4和Co‑N4双活性位点分别独立调控CO2‑to‑CO转化和析氢反应（HER），实现CO/H2比例在0.3:1‑2.5:1范围内精确可调；利用Ni单原子位点调控界面水氢键网络刚性，平衡CO2和H2O的活化动力学，抑制工业级电流密度下的副反应。
Resumen de: CN121496430A
本发明公开了一种兆瓦级大幅面AEM电解槽流场板，包括基板，所述基板的中央位置设有阳极进口、阳极出口一、阳极出口二，所述阳极出口一、阳极进口和阳极出口二依次呈直线排列，所述阳极出口一、阳极进口和阳极出口二形成的直线阵列位于所述基板的中央位置，所述阳极出口一、阳极进口和阳极出口二所形成的直线阵列将基板分为左基板和右基板，左右基板共设有四分区。本发明一种兆瓦级大幅面AEM电解槽流场板四分区结构，将大幅面流场进行划分，能够有效提升反应物的分布均匀性，提升活性面积利用率，减少局部过热的情况，同时通过分割为四个分区，大大减小单个流场的面积，有效解决电解槽压降较大的问题，可适用功率相对较小的泵体，降低能耗。
Resumen de: CN121493905A
本发明公开了一种通过氧化镍晶面调控吸附磷化氢制备电催化剂的方法，属于电催化材料制备技术领域；其包括：以镍源为原料，通过溶剂热法或水热法合成具有特定晶面暴露的形貌可控氧化镍颗粒，对氧化镍颗粒进行热处理得到前驱体，再将前驱体置于磷化氢氛围中进行磷化处理，最终制备得到含NixPy的电催化材料；其中，特定晶面包括（111）晶面和（110）晶面。本发明探究了不同形貌氧化镍对磷化氢吸附性能的差异，在实现高效脱除尾气中磷化氢的同时合成了电催化剂所形成的电催化剂材料，实现了环保治理与资源利用的双重目标。
Resumen de: 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。
Resumen de: 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。
Resumen de: 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.
Resumen de: 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。
Nº publicación: CN121496410A 10/02/2026
Solicitante:
上海交通大学
Resumen de: 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。
BOPI
Sede Electrónica
