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914
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Updated on
03/04/2026 [07:05:00]
Results 175 to 200 of 914
Absstract of: CN121653737A
本发明属于电解水催化剂技术领域，公开了一种Ni‑Ho‑MOFs复合催化剂及其制备方法和应用。所述复合催化剂是将镍源、钬源、有机配体加入溶剂中磁力搅拌，再将溶液pH值调至5~6，制得MOFs前驱液，在80~150℃进行水热反应制得。将该复合催化剂负载到基体上制得负载Ni‑Ho‑MOFs复合催化剂的电极。本发明的Ni‑Ho‑MOFs复合催化剂具有较好的析氢效率和稳定性，提高了水电解制氢的电解效率，可用于碱式电解水制氢气领域。
Absstract of: CN121653725A
本发明属于碱性电解水析氧反应技术领域，尤其涉及一种高熵合金催化剂及其制备方法和应用，催化剂以碳为载体，记作FeCoNiWCd/C。所述高熵合金催化剂的制备方法，包括如下步骤：S1：将碳载体分散于溶剂中，在冰水介质中超声均匀后，再将Fe、Co、Ni、W、Cd五种金属的盐溶液依次加入到溶剂中，继续超声得到均匀悬浊液；S2：将S1获得的悬浊液转移至高压微射流分散仪进行分散，随后将其转移至蒸发仪中进行干燥；S3：将S2中的粉末进行研磨后在管式炉中进行热分解还原，冷却至室温即得到催化剂FeCoNiWCd/C。本发明方法通过高压微射流分散促进碳载体上合金的均匀分布，得到的高熵合金粒径较小且具有较大的比表面积和优异的电催化性能。
Absstract of: CN121653701A
本发明属于电催化材料改性技术领域，具体涉及一种粗糙蜂窝状泡沫镍铁催化剂及其制备方法和应用。本发明提供的粗糙蜂窝状泡沫镍铁催化剂的制备方法，包括以下步骤：将预处理后的泡沫铁和复合盐溶液混合，于50～70℃进行水热反应，然后清洗，即得；其中，复合盐溶液是将氯化钠、碘化钠、氯化镍溶于水中制备得到。本发明提供的制备方法，在水热反应中同时引入氯和碘离子进行协同调控，不仅改善了泡沫铁的多孔蜂窝状结构，还克服了单一氯离子引入时的腐蚀问题，尤其是有效增加了表面粗糙度和活性位点，显著提升了材料的析氧催化性能，实现了形貌和析氧催化活性的双重优化，能够为开发新型高效自支撑电催化剂提供新的途径。
Absstract of: CN121653713A
本发明公开了一种双功能电极的制备方法、电极及应用，其中制备方法，包括以下步骤：（1）电镀液配置：以去离子水为溶剂，依次加入硫酸镍、硫酸铵、氯化铵、硫代硫酸钠，搅拌均匀后调节pH值至4.5‑5.5；（2）电极预处理：取用双面喷砂的镍丝网作为阴极，再依次除油、去除氧化层；（3）电化学沉积：将预处理后的阴极与镍基拉伸网阳极放入电镀液中，阴阳极分别连接电源负极与正极，室温下以5‑20mA/cm2的电流密度恒电流沉积30‑90min，得到双功能电极。本发明通过优化电镀共沉积工艺制备NiS合金，利用多硫化物保护层的双重抗铁机制，实现高电化学活性与抗铁吸附性能的统一，降低电解槽能耗，延长运行寿命。
Absstract of: CN121653702A
本发明公开一种电解水制氢电极的制备方法和应用。本发明将基底材料作为阴极在含镍电镀液中进行电镀，然后作为阳极在酸性溶液中进行电化学/化学刻蚀；其中，酸性溶液中的氢离子浓度为0.1‑1mol/L；电化学/化学刻蚀的电流密度为0.1~5mA/cm2，时间为30~120s。本发明采用电镀+刻蚀工艺，合成了具有微球状镍催化剂的制氢电极，不仅通过电镀使催化剂和基底具有高结合力，使催化剂不易脱离，还通过阳极电化学刻蚀+化学刻蚀工艺刻蚀，使微球增加表面积，提高其电催化活性，能够有效降低电解槽能耗。
Absstract of: US20260070784A1
A hydrogen generating device may include a water supply device for cartridges; a first hydrogen supply valve provided in a first hydrogen supply passage through which hydrogen gas is supplied from the first cartridge to a buffer tank; a second hydrogen supply valve provided in a second hydrogen supply passage through which hydrogen gas is supplied from the second cartridge to the buffer tank; and a main hydrogen supply passage for supplying hydrogen gas from the buffer tank to outside. For switching a hydrogen supply source from the first cartridge to the second cartridge, a controller may perform: a first process to stop supplying water to the first cartridge and supply water to the second cartridge with the second hydrogen supply valve closed, and a second process to open the second hydrogen supply valve to supply hydrogen gas from the second cartridge to the buffer tank.
Absstract of: CN121653727A
本发明涉及一种快速制备高性能自支撑析氢催化电极的方法，属于电解水制取氢气技术领域，该制备方法包括：首先对基底材料进行酸洗、醇洗和水洗等预处理步骤，然后在一定温度和压力条件下，将预处理后的基底材料浸入前驱体溶液中进行化学反应，施加适当时间的超声处理，使其充分反应，随后取出进行洗涤干燥。本技术方案可快速、低成本和大批量的制备电解水析氢电极材料，同时条件温和、效率高，所制备电极具有高催化析氢活性，有望推动碱性电解水制氢技术的商业化发展。
Absstract of: CN121653746A
本发明属于材料合成及电催化领域，涉及一种简单的四元合金氧化物的制备方法及其在电化学碱性析氢、析氧反应中的催化应用。先将含镍盐、钴盐、铁盐和钌盐的金属盐溶液与有机配体溶液充分混合后，加入载体，进行水热反应，得到四元金属有机配合物前驱体；再将金属有机配合物前驱体在惰性气体保护下进行热解处理得到四元金属合金氧化物。通过有机配体对金属离子的预分散与配位作用，在相对较低温度下实现了四元金属的均匀合金化；以镍、钴、铁为主体结构，掺入少量贵金属钌形成多元合金氧化物，减少了钌的用量，降低了成本，且制备的四元合金氧化物具有更高的OER、HER活性和稳定性，本发明制备方法简单，成本低，具备良好的工业化应用前景。
Absstract of: CN121653750A
本发明涉及一种碳负载高熵金属/高熵金属化合物复合催化剂的制备方法，属于电催化材料领域。结构特征在于：高熵金属颗粒原位锚定在生物质炭材料表面，并经热氧化处理形成高熵金属/高熵金属化合物复合相，均匀负载于碳载体上，所述方法包括以下步骤：将生物质材料浸渍于高熵金属化合物盐溶液，经冷冻干燥得到碳负载高熵金属合金前驱体材料；随后将前驱体材料在惰性气氛下进行高温热处理，得到碳负载高熵金属合金复合材料；最后通过热氧化处理，制备得到碳负载高熵金属/高熵金属化合物复合催化剂。该方法所制备的催化剂具有高熵金属/高熵金属化合物均匀锚定于生物质炭表面的复合结构，有效调控了碳载体的微观形貌并暴露出丰富的活性位点。其在酸性电解水析氢反应中表现出优异的催化活性和长期稳定性，且制备工艺简便、成本低廉，在能源转换与催化领域具有良好的应用前景。
Absstract of: CN121653745A
本申请提供的金属原子负载层状氧化锰电催化剂的制备方法，将前驱体溶液与泡沫镍进行水热反应，反应结束冷却至室温，将反应后的泡沫镍干燥处理，得到层状氧化锰电催化剂；将层状氧化锰电催化剂置于金属盐电解液中进行电化学沉积以获取金属原子负载层状氧化锰电催化剂，本申请通过异种原子在氧化锰表面形成金属负载来提升催化剂电催化活性、选择性和稳定性是一个有效的途径。金属负载可进一步调控层间距和电子结构，暴露更多活性位点，通过双金属协同和电子结构调控，可以优化反应动力学；本发明采用水热法结合电沉积法制备金属原子掺杂针状氧化锰电催化剂，制备方法相对更加简单。另外，本申请还提供了金属原子负载层状氧化锰电催化剂及应用。
Absstract of: CN121648829A
本发明公开了一种磁感应加热驱动氨分解快速冷启动的系统、工艺及催化剂，属于氢能制备技术领域。所述系统包括气路单元、装有磁性钴基催化剂的催化剂床、检测单元、磁感应加热装置和氢燃料电池集成单元。所述催化剂以Al2O3为载体，负载金属钴纳米颗粒，具有高饱和磁化强度。系统工作时，磁感应加热装置产生交变磁场，使催化剂自身快速生热，可在10秒内达到氨分解反应温度，实现“秒级”冷启动。同时，该催化剂对氨分解具有高活性，氨转化率接近100%。本发明解决了传统氨分解系统启动慢、能耗高的难题，特别适用于氨动力车辆、便携式燃料电池等需要快速即时制氢的移动场景。
Absstract of: CN121648906A
本发明涉及材料制备领域，具体为一种利用掺杂增强Bi4Ti3O12铁电材料光生电荷空间分离的制备方法，解决当前原始Bi4Ti3O12电荷分离效果较差的问题。具体为，按设定比例称取NaCl和KCl作为熔融盐，加入Bi2O3与TiO2为反应物，通过改变熔融盐的种类或者加入其他氧化物来实现不同元素的掺杂，提高Bi4Ti3O12光生电荷空间分离效果。本发明通过熔盐法制备，操作简单、成本低廉，所得产品形貌规则，具有较高的产率和纯度，且光生电荷空间分离效率较高，具备大规模应用的潜力。
Absstract of: CN121653751A
本发明公开了一种基于改性氧化铈的碱性电解水制氢隔膜及其制备方法，涉及碱性电解水制氢隔膜技术领域。通过酸溶液对二氧化铈进行改性处理，然后将其分散于聚砜树脂、N‑甲基吡咯烷酮、聚乙烯吡咯烷酮的混合溶液制备得到铸膜液。将聚苯硫醚网浸润铸膜液中，通过刮涂确定厚度，然后预蒸发，通过去离子水中进行相转化，清洗，获得所述隔膜。本发明工艺简单，所制备隔膜表面均匀平整，在强碱性电解环境中兼具高化学惰性、亲水特性、保障氢氧根离子高效迁移通道，且具备低面电阻。
Absstract of: CN121653734A
本发明提供了一种自支撑碳氧化钼催化剂及其制备方法和应用，所述制备方法主要包括以下步骤：1）加热不锈钢网；2）将不锈钢网在尿素和含钼盐溶液中进行淬火反应引入钼源和碳源；3）交替加热不锈钢网和淬火过程，得到生长含碳的氧化钼纳米片作为前驱体；4）将含碳的氧化钼纳米片前驱体在惰性气氛保护下，通过闪蒸焦耳技术进行快速瞬时加热处理，获得自支撑碳氧化钼催化剂。本发明提供的自支撑碳氧化钼催化剂呈现二维超薄纳米片结构，该纳米片富含氧缺陷具备超亲水能力，能有效增强水分子的吸附并降低析氢反应中间体转化的能量势垒。该方法工艺流程短，制备效率高，适合规模化工业生产，在电解水制氢领域展现出巨大的发展潜力。
Absstract of: CN121368648A
The present invention relates to an electrolysis system comprising: a tank adapted to contain water or an aqueous solution; the electrolysis array comprises a conductive plate; the temperature-resistant cathode is close to but separated from the cathode end of the electrolysis array; a cell anode proximate but spaced apart from opposing anode ends of the electrolysis array; wherein a cathode terminal and an anode terminal of the electrolysis array are electrically connected to a cathode terminal and an anode terminal of a first power source adapted to provide direct current (DC) power thereto, respectively; the temperature-resistant cathode and the tank anode are electrically connected to a negative terminal and a positive terminal of a second power source adapted to provide DC power thereto, respectively; and at least the temperature resistant cathode is adapted to generate a plasma arc in the water or aqueous solution between the end of the temperature resistant cathode and the closest plate in the electrolysis array.
Absstract of: US20260071342A1
There is provided a system comprising burning facility (101); a synthetic fuel production facility (102); a hydrogen production facility; and an oxygen production facility (114); wherein the oxygen production facility (114) is configured to feed the produced oxygen to the burning facility (101) for combustion of fuel at the burning facility (101) using the produced oxygen, and the burning facility (101) is configured to produce a CO2-rich flue gas based on the combustion of the fuel at the burning facility (101) using the produced oxygen, and the burning facility (101) is configured to feed the produced CO2-rich flue gas to the synthetic fuel production facility (102) for capturing the CO2 generated at the combustion in a fuel synthesis.
Absstract of: WO2026052234A1
Disclosed is a process for oxidizing a metal and for generating hydrogen and carbon monoxide by using a reactor having a reaction chamber with an inlet zone for reactive materials, a central zone and an outlet zone for a product gas. In this process a first reactive material and a second reactive material are used, each comprising selected components comprising selected metals and organic compounds. In the process a first flame is generated by reacting the first reactive material present in the inlet zone. This first flame generates and supports a second flame that is formed by reacting the second reactive material present in the inlet zone. In the second flame a product gas is formed that contains hydrogen and carbon monoxide. Hydrogen and carbon monoxide are discharged from the reactor and can be used for various chemical reactions and/or for generation of energy. Moreover, thermal energy generated in the reactor can be used for generation of electrical energy and/or for different heating applications.
Absstract of: WO2026055229A1
An autothermal ammonia reactor includes a chamber, a hydrogen-separation membrane within the chamber, and an ammonia decomposition catalyst. The chamber receives ammonia and air. The chamber including a combustion zone, a catalytic zone, and a hydrogen zone. The catalytic zone is in thermal communication with the combustion zone. The chamber directs the air and a portion of the ammonia from the fluid inlet to the combustion zone to allow the air and ammonia to exothermically react to generate thermal energy. The chamber directs another portion of the ammonia into the catalytic zone to decompose into hydrogen and nitrogen as the ammonia is exposed to the thermal energy from the combustion zone and contacts the catalyst. The chamber directs the hydrogen from the catalytic zone, through a surface of the hydrogen-separation membrane, to the hydrogen zone to allow the hydrogen to exit the chamber through the fluid outlet.
Absstract of: WO2026052628A1
The invention relates to an electrolysis arrangement comprising an electrolyzer for performing the electrolysis of an electrolyte, wherein a biphasic flow containing a gas flow and a liquid electrolyte flow is produced in the electrolyzer, and a separator downstream of the electrolyzer and comprising a vessel with a receiving chamber for receiving the biphasic flow from the electrolyzer, wherein the separator is configured to separate the gas flow and the liquid electrolyte flow in the receiving chamber. An explosion damper is arranged within the receiving chamber.
Absstract of: WO2026055341A1
A process and apparatus for the production of hydrogen, wherein the process comprises the steps of: introducing an ammonia feed (2) into a catalytic cracker (10) under conditions effective for producing a cracked stream (12) comprised of hydrogen, nitrogen, water vapor, and unreacted ammonia; drying the cracked stream with a temperature swing adsorption (TSA) unit (20) comprising at least two adsorbent beds (A, B) to form a dry cracked stream (22); introducing the dry cracked stream into a coldbox (30), wherein the cold box encloses a heat exchanger and a partial condensation vessel, wherein the heat exchanger is configured to cool the dry cracked stream, wherein the partial condensation vessel is configured to produce a nitrogen enriched stream (34) and a hydrogen enriched stream (32); and introducing the hydrogen enriched stream (32), after warming in the heat exchanger, to a pressure swing adsorber (PSA) unit (40) to form a hydrogen product stream 42 and a PSA off-gas (44).
Absstract of: WO2026052657A1
The invention relates to an electrolysis system for electrolytically splitting water into hydrogen and oxygen, comprising an electrolytic cell (1) having an anode chamber (2) and a cathode chamber (3) that are separated from one another by a semipermeable barrier, and comprising an anode water circuit (4) which supplies the anode chamber (2) with water via an anode inlet (5) and which receives water from the anode chamber (2) via an anode outlet (6), wherein a gas-water separator (8) and a pump device (9) are disposed in the anode water circuit (4). The water from the cathode chamber (3) is received in a cathode water pathway (14) and fed into the anode water circuit (4), with a second gas-water separator (17) being disposed in the cathode water pathway (14) and an ion exchanger (10) for removing metal ions being disposed in the anode water circuit (4). A free-radical scavenger (20) is disposed in the cathode water pathway (14).
Absstract of: DE102024208694A1
Elektrolysesystem zur elektrolytischen Spaltung von Wasser, mit einer Elektrolysezelle (1), die zwei Reaktionsräume (2; 3) aufweist, die durch eine semipermeable Barriere getrennt sind, wobei ein Reaktionsraum (2; 3) mit einer Ablaufleitung (9) verbunden ist, durch die Wasser und Gas aus dem Reaktionsraum (2; 3) abgeführt werden. Von der Ablaufleitung (9) zweigt ein Steigrohr 20 ab, in dem ein Gassensor (17) angeordnet ist, der die Konzentration eines Gases im Steigrohr (20) detektiert.
Absstract of: DE102025116656A1
Das vorliegende System verwendet einen Wasserelektrolysestapel, um Wasser in Wasserstoff und Sauerstoff aufzuspalten. Der Wasserstoff wird an der negativen Elektrode abgeleitet und in einem Wasserstofftank gespeichert, während der Sauerstoff an der positiven Elektrode abgeleitet und in einem Sauerstofftank gespeichert wird. Die gespeicherten Gase können bei Bedarf in den Elektrolysestapel zurückgeführt werden. Sensoren messen die Wasserstoff- und Sauerstoffkonzentration in dem abgeleiteten Fluid, und eine Steuerung vergleicht diese Messwerte mit sicheren Grenzwerten. Ist die Konzentration zu hoch, werden Ventile automatisch eingestellt, um den Durchfluss der gespeicherten Gase zu steuern. Zusätzliche Komponenten wie ein Ejektor und Druckregler tragen zu einem effizienten Betrieb bei und verhindern eine gefährliche Gasansammlung.
Absstract of: AU2026201235A1
WO 2021/16125 PCT/US2021/018596 The present invention provides a hydrodynamic pump, comprising: an upper hull enclosure adapted to float at a surface of a body of liquid; a liquid collecting chamber at least partially housed within the upper hull enclosure, the liquid collecting chamber adapted to confine liquid and gas at elevated pressure; a liquid pressurizing columnar conduit extending below the upper hull enclosure, the liquid pressurizing columnar conduit comprising an ingress orifice disposed outside the upper hull enclosure, an injection orifice opening into the liquid collecting chamber, and an interior wall defining a liquid pressurizing surface adapted to pressurize liquid in the liquid pressurizing columnar conduit when the hydrodynamic pump oscillates vertically in the body of liquid to inject liquid into the liquid collecting chamber; a first effluent conduit configured to drain liquid from the liquid collecting chamber and having an effluent port for discharging liquid from the first effluent conduit; and a first flow governor adapted to maintain a liquid pressure gradient between the liquid collecting chamber and the effluent port. WO 2021/16125 PCT/US2021/018596 eb e b
Nº publicación: AU2024328562A1 12/03/2026
Applicant:
NIIGATA UNIV
NIIGATA UNIVERSITY
Absstract of: AU2024328562A1
A reaction medium according to the present invention is characterized by having a chemical structure in which Mn is introduced into a composite iron oxide. It is preferable that this reaction medium is used in a method for producing hydrogen by thermally decomposing water. It is preferable that this reaction medium contains a composite metal oxide of Fe, Co, Ni, and Mn, contains a composite metal oxide of Fe, Ni, Mg, and Mn, or contains a composite metal oxide of Fe, Co, Mg, and Mn. A treatment method according to the present invention includes: a first step for thermally reducing the reaction medium; and a second step for bringing the thermally reduced reaction medium into contact with an object to be treated, thereby oxidizing the reaction medium and decomposing the object to be treated.
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