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860
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Updated on
15/11/2026 [07:11:00]
Results 325 to 350 of 860
Absstract of: EP4821585A2
Processes and apparatus for electrocatalytically converting carbon dioxide emissions and/or ambient carbon dioxide into useful chemicals are described. The process may include: removing carbon dioxide from ambient air through a carbon capture technique, supplying a carbonate or bicarbonate aqueous solution as cathode feed to a cathode of an electrolytic cell comprising a membrane electrode assembly which includes a bipolar membrane separating an anode from the cathode, and applying an electrical potential difference between the cathode and the anode of the membrane electrode assembly to electrocatalytically reduce the carbonate or bicarbonate aqueous solution to carbon monoxide or another useful chemical.
Absstract of: EP4822062A1
0001 Provided is a membrane electrode assembly capable of suppressing hydrogen crossover. A membrane electrode assembly for polymer electrolyte membrane water electrolysis which comprises an anode having a catalyst layer, a cathode having a catalyst layer and a polymer electrolyte membrane provided between the anode and the cathode wherein at least one of the catalyst layer in the anode and the catalyst layer in the cathode comprises a fluorinated polymer having ion exchange groups and comprising units having a cyclic ether structure.
Absstract of: WO2025119499A1
The invention relates to a method of preparing a cell repeat unit (18) for use in an electrochemical cell stack (10), the method comprising providing an electrochemical cell unit (28), said cell unit (28) having an inner fluid volume (44) and a cell opening (60) for transporting fluid between said inner fluid volume (44) and the exterior of the cell unit, providing a gasket being configured to surround the cell opening, and attaching said gasket to said cell unit by a hot melt adhesive dose (80). The invention also relates to a cell repeat unit and an electrochemical cell stack.
Absstract of: WO2025119497A1
The invention relates to an electrochemical cell assembly (10) comprising an end plate (14, 18), a stack (20) comprising a plurality of cell units (22) that are stacked upon one another along a stacking direction (24), and an insulating plate (32) that is interposed between the end plate and the stack, wherein the cell units each comprise a periphery (52) and a central portion (54), wherein at least one cut-out (76) is provided in the insulating plate, said cut-out extending through the insulating plate along the stacking direction, and wherein at least one inset (78) is positioned in said cut-out such that, seen along the stacking direction, the inset and the central portion overlap each other, said inset being formed from a ceramic material.
Absstract of: WO2025068713A1
The specification describes bilayer electrolyte membrane comprising: a first layer comprising a polymer electrolyte having particles of a recombination catalyst dispersed therein; and a second layer comprising a polymer electrolyte not having any recombination catalyst dispersed therein; wherein the thickness of the bilayer electrolyte membrane is 40-60 µm; the concentration of recombination catalyst in the first layer is 1-100 µg/cm2; and the bilayer electrolyte membrane is a single coherent polymer film. Also described is a method for preparing the bilayer electrolyte membrane, a catalyst coated membrane for an electrochemical device comprising the bilayer electrolyte membrane, and a fuel cell comprising the catalyst coated membrane.
Absstract of: CN119710757A
0001 The off-grid hybrid electrolysis hydrogen production system provided in this application includes a new energy power generation unit and an energy storage unit. A power conversion unit converts the electrical energy output from the new energy power generation unit and the energy storage unit into electrical energy suitable for hydrogen production. The electrolysis unit includes a proton exchange membrane hydrogen production module and a solid oxide electrolysis module, used for hydrogen production after the introduction of electrical energy. The controller uses the charge and discharge control of the energy storage unit to track the fluctuation value of the electrical energy output from the new energy power generation unit, ensuring that the total electrical energy fluctuation value output by the new energy power generation unit and the energy storage unit is within a set range. The above-mentioned solution provided in this application can improve the hydrogen production efficiency of the entire hydrogen production system, ensure that the hydrogen production system can operate off-grid, and, by keeping the total electrical energy fluctuation of the new energy power generation unit and the energy storage unit within a set range, this application eliminates the impact of power generation fluctuations from the new energy power generation unit on the hydrogen production effect.
Absstract of: EP4822060A1
0001 The purpose of the present disclosure is to provide an electrolytic cell stack capable of increasing the amount of product generated by electrolysis while suppressing the temperature rise of the cell stack. An electrolytic cell stack (101) according to the present disclosure comprises: an electrolysis unit cell (105) that has a hydrogen electrode containing Ni, an oxygen electrode, and a solid electrolyte membrane and is formed in the circumferential direction of a base tube; and an interconnector that electrically connects a plurality of electrolysis unit cells arranged in the axial direction of the base tube. When the distance between the ends of the oxygen electrode, oriented in the axial direction of the base tube, in each electrolysis unit cell is defined as the width W of the electrolysis unit cell, and the area on the base tube in which the plurality of electrolysis unit cells are arranged is divided into a first end portion (10), a central portion (11), and a second end portion (12) along the axial direction, the widths W1, W3 of the electrolysis single cells (105b, 105c) positioned in the first end portion and/or the second end portion is 1.5 to 3 times greater than the width W2 of the electrolysis unit cell (105a) positioned in the central portion.
Absstract of: EP4822059A1
0001 The purpose of the present invention is to improve the safety of a hydrogen production plant. This hydrogen production plant (1) comprises: a solid oxide electrolysis cell (SOEC) (10) which produces a hydrogen-containing gas; and a discharge stack (30) into which the hydrogen-containing gas produced by the SOEC (10) is introduced and which discharges the introduced hydrogen-containing gas to air. The discharge stack (30) has a spray unit (32) which supplies, to the hydrogen-containing gas introduced therein, cooling water for cooling the hydrogen-containing gas.
Absstract of: US2020377366A1
A process for the manufacture of hydrogen iodide (HI) from hydrogen (H2) and elemental iodine (I2) dissolved in a suitable solvent with use of at least one catalyst selected from the group of platinum, palladium, nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide.
Absstract of: WO2025223617A1
The invention relates to a bipolar plate (1) for use in an electrochemical system (10), formed from a metal sheet having an anode side (1a) and a cathode side (1b), wherein an edge region (6) of the bipolar plate (1) defines a reference plane (EE) and, in the edge region (6), there are ports (7, 8) for input and output of media to or from an active field (9), in the region of which electrochemical reactions take place in the electrochemical system (10), and wherein, in the active field (9), structuring (12) of the bipolar plate (1) is designed such that an active field base plane (EA) formed by two-dimensional material of the bipolar plate (1) is offset in a parallel spaced-apart manner from the reference plane (EE), namely in the direction toward the cathode side (1b), and individual embossed elements (13, 22) present in the active field (9) all project from the active field base plane (EA) in the direction of the anode side (1a). The invention further relates to a method of producing the bipolar plate (1), to a plate assembly (11) and to an electrochemical system (10).
Absstract of: CN122898918A
本发明公开了一种具有二维片状结构的自支撑镍镓合金析氢电极及其制备方法与应用，制备方法包括以下步骤：将镍网浸没于液态金属镓中，在惰性气氛保护下，以2‑10 ℃/min的升温速率升温至350‑550 ℃后进行保温处理，保温结束后进行骤冷处理，随后采用碱性溶液进行处理，经清洗、干燥后得到所述自支撑镍镓合金析氢电极。本发明制备流程简洁，无需复杂设备以及繁复的化学合成工序，并且工艺可直接放大实现大面积电极制备，拥有良好的规模化应用潜力。本发明制得的具有二维片状多孔结构的自支撑镍镓合金析氢电极作为电催化剂，在电解水析氢反应中展现出优异的催化能力。
Absstract of: CN122898903A
本发明公开了一种压力型水电解制氢槽用非金属极框，属于水电解制氢设备技术领域，旨在解决传统金属极框易腐蚀、现有非金属极框在压力型工况下密封可靠性不足及极框厚度偏大等问题。极框主体由非金属工程塑料制成；两侧交替设置拉紧螺栓孔和气液通孔；内部小室流道轴线与极框主体表面呈倾斜角度设置，实现极框薄型化；内侧设O形圈密封凹槽；外侧配置C型包边结构外密封垫片；与双极板密封区域对应位置设密封凹槽；阳极侧设下沉反应区；阴极侧设蛇板结构。本发明通过倾斜流道、交替孔位排布及多层次密封结构协同配合，实现极框免电镀镍、密封可靠、结构薄型化，适用于压力型碱性水电解制氢槽。
Absstract of: CN122898900A
本发明公开了一种差压式海水/污水原位制氢耦合系统，涉及电解水制氢技术领域，解决常压转相系统与高压电解制氢系统耦合时转相膜承受高压、系统需配置减压泵等主动降压装置、结构复杂等问题。该系统包括压力型电解制氢系统、压力缓冲系统和转相系统。压力缓冲系统通过增压泵将碱液从一级碱液储罐加压后输送至压力型电解制氢系统，气液分离系统分离后的碱液无需经过任何主动降压设备（如减压泵），仅依靠压力型电解制氢系统与二级碱液储罐之间的固有压差被动自动回流，形成差压驱动的碱液循环回路。该系统能够实现转相膜组件常压运行、高压直接制氢，省去减压泵等主动降压设备，简化系统结构，降低设备成本，提高系统运行可靠性。
Absstract of: CN122904766A
0001 本发明公开一种电解槽结构优化设计方法及装置，本发明首先优化电解槽进出口歧管管径分布，均衡各个电解小室的电解液流量；选取膨胀网作为核心流道结构，优化其几何参数匹配系统设计电流密度，同步改善流动均匀性、压降损耗与界面传质效果。在电解小室径向布置多组进出口并配套导流区，促使电解液由点源均匀铺满流道整体宽度。沿介质流向将小室划分为入口区、中间活性区、出口区，对三区结构参数差异化设计，并与膨胀网流道协同匹配。本发明通过歧管、流道、进出口、分区结构多维度一体化优化，有效实现电解液全域均匀分布，同时加快电解产生的气液两相分离，降低能耗，全面提升电解系统反应效率与运行稳定性。
Absstract of: CN122895048A
0001 本发明公开了一种MIL‑101(Cr)/In<2>S<3>复合光催化剂及其制备方法与应用。属于复合光催化材料技术领域。该复合光催化剂由八面体结构的MIL‑101(Cr)与花状微球结构的In<2>S<3>经物理复合而成，MIL‑101(Cr)锚定在In<2>S<3>的片层结构表面及片层间，二者之间形成异质界面。制备方法包括分别水热合成MIL‑101(Cr)和In<2>S<3>，再将二者按比例室温搅拌复合。本发明通过将MIL‑101(Cr)与In<2>S<3>进行物理复合，构建了具有紧密异质界面的复合光催化剂。得益于二者能带结构的高度匹配，在可见光激发下，光生电子可快速从In<2>S<3>转移至MIL‑101(Cr)，抑制了光生载流子的复合，显著提高了光量子效率。该复合光催化剂在可见光下可高效降解四环素，当MIL‑101(Cr)与In<2>S<3>质量比为0.5:0.375时，180min内对四环素的降解率达94.8%，且稳定性优异；同时具有良好的光催化产氢性能，4h产氢量达1753.16μmol。
Absstract of: CN122898919A
0001 本公开提出一种抗电源分钟级以下的快速波动电极及制备方法、应用，属于电解水制氢技术领域。快速波动电极包括：泡沫镍基底；复合催化剂涂层，涂覆于泡沫镍基底表面，复合催化剂涂层包括镍铁合金与石墨烯，且该复合催化剂涂层具有多级孔道结构；铱涂层负载于复合催化剂涂层。通过将镍铁合金和石墨烯作为复合催化剂涂层，镍铁合金具有一定的催化活性，石墨烯具有优异的导电性，两者协同导电，有利于提升电极的导电性，同时，复合催化剂涂层具有多级孔道结构，能够提升导电性和抗波动性。此外，通过在复合催化剂涂层表面修饰铱，显著提升电极在电源快速波动下的抗腐蚀性和反应动力学稳定性，解决传统电极因动态工况导致的寿命短、效率低等问题。
Absstract of: CN122898019A
0001 本发明公开了一种聚苯硫醚/细菌纤维素/聚苯硫醚三层对称复合隔膜的制备方法，涉及碱性电解水制氢用隔膜技术领域。所述复合隔膜利用液相原位聚合法在细菌纤维素膜两侧原位生长聚苯硫醚层，并通过低温短时热压定型获得。本发明利用细菌纤维素表面羟基与聚苯硫醚单体的氢键相互作用，诱导聚苯硫醚在细菌纤维素膜面定向沉积、成核生长，形成聚苯硫醚薄层。通过原位聚合实现双侧对称包覆，配合低温短时热压工艺，在避免细菌纤维素中间层过度压缩的前提下，实现聚苯硫醚表层致密化调控与界面机械互锁，制备得到具有对称结构的三层复合隔膜。该隔膜在碱性水电解过程中表现出高泡点压力、超低面电阻及超高氧纯度，且长期运行稳定性优异。
Absstract of: CN122898909A
0001 本发明提供了一种界面硫耦合的析氢催化剂及其制备方法和应用，属于催化材料技术领域。本发明的析氢催化剂包括多孔镍基底、负载在所述多孔镍基底上的硫化镍纳米片和负载于所述硫化镍纳米片上的Pt纳米团簇；所述硫化镍纳米片与Pt纳米团簇之间通过硫桥键连接。硫桥键能同时调控电子结构、削弱界面水分子氢键网络、降低气液界面张力促进气泡快速释放并有效抑制Ca<2+>和Mg<2+>引发的氢氧化物沉积，提高复杂天然海水环境中催化剂的活性与稳定性。本发明提供的界面硫耦合的析氢催化剂在碱性海水和天然海水体系中均表现出优异的催化活性，可长久稳定运行200h，具有优异的稳定性。
Absstract of: CN122898922A
本发明涉及一种铱掺杂二氧化钌酸性析氧电催化剂及制备方法，将可溶性钌盐和形貌调控剂按比例混合，经pH调控、水热反应制备得到二氧化钌基体，再通过可溶性铱盐浸渍掺杂和高温退火处理，制得目标电催化剂。该催化剂通过构筑微观纳米结构，增大材料比表面积，充分暴露催化活性位点，实现铱均匀掺杂；通过铱掺杂调节二氧化钌电子结构，优化电子传输效率，改善酸性析氧反应动力学，所得催化剂在强酸性条件下的催化活性与稳定性明显优于纯相二氧化钌；该催化剂制备工艺参数可控、流程稳定、设备要求低，适用于酸性析氧反应，可广泛应用于高效电解水制氢、二氧化碳还原等系统，具备良好的应用潜力。
Absstract of: CN122898923A
0001 本发明属于电催化材料领域，公开了一种超薄碳层包覆二元金属硫化物电极的制备方法及应用，电极的制备方法包括以下步骤：将金属源、碳源和硫源加入溶剂中混合均匀，得到混合溶液，将电极基底放入混合溶液中进行水热反应，即得所述超薄碳层包覆二元金属硫化物电极。本发明通过一步水热法制备超薄碳层包覆二元金属硫化物电极，从而提高电极的活性比表面积，促进活性位点的暴露，进而增强催化电极的电化学性能。不仅能够解决目前电解水制氢领域的电化学活性差以及在大电流密度下稳定性差的技术问题，而且还能通过电解海水制氢耦合提镁实现氢气和氢氧化镁联产，大幅提升电解海水制氢技术的经济效益。
Absstract of: CN122898896A
0001 本公开实施例提供了一种制氢储氢系统及方法，所述系统包括：控制子系统、制氢子系统和储氢子系统；制氢子系统，包括至少一个电解池和水电解循环管路；用于利用所述至少一个电解池对水进行电解制备氢气；储氢子系统，包括气态储氢罐、液态储氢罐和固态储氢罐；用于基于需求条件选择合适的储氢罐对氢气进行储存；控制子系统与制氢子系统和储氢子系统通信连接，用于对制氢子系统和储氢子系统的运行进行调控。通过控制子系统与高效的电解水制氢及先进的储氢技术相结合，实现了从水电解到氢气储存再到能量转换的全流程优化，提升了系统的整体性能和经济效益，推动了清洁能源的有效利用。
Absstract of: CN122898907A
本发明属于电化学催化剂技术领域，具体涉及一种表面结构可调的铜基催化剂、其制备方法和应用与电解水制氢方法。所述铜基催化剂为表面具有粗糙缺陷的铜箔；或者，所述铜基催化剂为表面原位重构出致密堆叠的均匀纳米颗粒层的铜箔，所述均匀纳米颗粒层中颗粒平均粒径为22‑26nm。本发明巧妙地采用室温化学溶液（L‑乳酸和碱液）浸泡的策略在纯铜箔表面原位溶出并重构形成一种特殊的粗糙缺陷结构。在电解测试中，特别是在‑1.0 V vs.RHE的较低工作电位下，该特定表面可使电催化HER反应转化为绝对主导的目标反应，其氢气法拉第效率高度接近100%，成功实现了低能耗、高效率的电催化纯析氢。
Absstract of: CN122898916A
0001 本发明公开了一种小尺寸二氧化钌纳米粒子及其制备方法和应用，涉及催化剂技术领域。制备方法为：将氯化钌前驱体盐溶解到去离子水中，加入碳载体，搅拌得到均匀的溶液，将混合溶液通过旋蒸仪去除水溶液，获得干燥的负载在碳载体上的氯化钌材料；研磨为松散的粉末后在还原气氛下进行煅烧，获得负载在碳载体上的金属钌纳米颗粒；随后在空气气氛下进行煅烧，去除碳载体；最后进行研磨，获得分散均匀的二氧化钌纳米粒子材料。本发明制备工艺流程简单，无需复杂辅助体系，具有可控性强、重复性好的优势，适合规模化生产。所得产物为高分散、粒径均一的小尺寸纯相二氧化钌纳米颗粒，可作为一种高性能催化剂，适用于酸性电解水析氧催化反应。
Absstract of: CN122898920A
本发明涉及电催化分解水技术领域，具体涉及一种钌基催化剂及其制备方法和应用。本发明提供的一种钌基催化剂，包括核与包覆所述核的壳，所述核的材料包括金属钌，所述壳的材料包括钌氧化物。本发明得到的核壳结构中RuO2壳层与金属核之间呈现择优取向，并暴露特定晶面(101)，在用于质子交换膜电解水阳极催化剂时，具有更多反应位点，催化活性高，稳定性更强。
Nº publicación: CN122898912A 13/10/2026
Applicant:
宁波工程学院宁波中乌新材料产业技术研究院有限公司山西创宁科技股份有限公司
Absstract of: CN122898912A
本发明属于析氧电催化领域，具体涉及石墨烯气凝胶负载NiFeMoRu多金属析氧反应电催化剂及其制备方法和应用。本发明通过将Ni、Fe、Mo、Ru前驱体溶液浸渍石墨烯气凝胶并进行两阶段焦耳热处理，使多金属活性组分在三维导电多孔骨架上原位形成并分散负载，降低局部富集和团聚风险。所得催化剂具有较好的析氧反应活性、电荷传输能力和运行稳定性，适用于阴离子交换膜水电解膜电极和器件。
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