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428
results.
Updated on
09/09/2025 [07:01:00]
Results 175 to 200 of 428
Absstract of: EP4603181A1
The invention provides a novel and efficient catalyst for HER composed of Ru nanoparticles dispersed over a support consisting of titanium oxynitride and high surface area carbon material, such as graphene oxide, (TiON-C) with a particularly low Ru loading of only 6 wt.%. In an alkaline electrolyte, the Ru/TiON-C composite significantly surpasses the HER performance of the Ru/C analog. More importantly, Ru/TiON-C is both intrinsically (nearly 3 times higher turnover frequency) and practically (4 times higher mass activity) better performing HER catalyst than the commercial Pt/C benchmark.
Absstract of: CN119677896A
In one embodiment, discussed herein is a method of producing hydrogen, the method comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a membrane between the anode and the cathode, where the membrane is both electronically and ionically conductive; (b) introducing a first stream to the anode, wherein the first stream comprises ammonia; (c) introducing an oxidizing agent to the anode; and (d) introducing a second stream to the cathode, wherein the second stream comprises water and provides a reducing environment to the cathode; wherein the hydrogen is generated from water in an electrochemical manner; wherein the first stream and the second stream are separated by the membrane; and wherein the oxidant and the second stream are separated by the membrane.
Absstract of: AU2023359480A1
The invention relates to a bipolar plate for an electrolytic cell, the plate comprising, on at least one of its main faces: a first zone running circumferentially; a second zone running circumferentially so as to be bordered on the outside by the first zone; a third zone running circumferentially so as to be bordered on the outside by the second zone, the various zones being arranged on the periphery of the associated main face. The invention also relates to the corresponding cell, electrolyzer cell and assembly method.
Absstract of: AU2023359478A1
The invention relates to a method for joining a stack of elements together, the method comprising the steps of: individually joining subassemblies of the elements together; joining the subassemblies together by arranging a joint between each subassembly to form the stack of elements; applying consecutive phases of heating and cooling to the stack of elements while applying at least one clamping action to the stack of elements between two different phases of heating and cooling.
Absstract of: US2025116022A1
A method of operating a solid oxide electrolysis cell (SOEC) system at partial load, the SOEC system including a plurality of branches each including at least one SOEC stack, includes determining a thermally neutral target voltage and cycling an ON phase and an OFF phase for each of the branches such that the SOEC system operates at an average operating power equal to a chosen percentage of the operating power at the thermally neutral target voltage. In the ON phase, the SOEC stacks in a given branch operate at the thermally neutral target voltage, and in the OFF phase, the SOEC stacks in the given branch are unloaded to an open circuit voltage and operate at 0% of rated power. The frequency of OFF phases for each branch is determined such that stronger or healthier branches have a lower frequency of OFF cycles than weaker or less healthy branches.
Absstract of: US2023243054A1
A separator for alkaline electrolysis comprising a porous support (10) and a first (20b) and second (30b) porous layer provided on respectively one side and the other side of the porous support, characterized in that the porous support has a thickness (d1) of 150 μm or less and the total thickness (d2) of the separator is less than 250 μm. Also a method is disclosed wherewith such a separator may be prepared.
Absstract of: MX2025001242A
The invention relates to a method for heating a furnace comprising radiant tubes and being able to thermally treat a running steel strip comprising the steps of: i. supplying at least one of said radiant tubes with H<sub>2</sub> and O<sub>2</sub> such that said H<sub>2</sub> and said O<sub>2</sub> get combined into heat and steam, ii. recovering said steam from said at least one of said radiant tubes, iii. electrolysing said steam so as to produce H<sub>2</sub> and O<sub>2</sub>, iv. supplying at least one of said radiant tubes with said H<sub>2</sub> and O<sub>2</sub> produced in step iii, such that they get combined into heat and steam.
Absstract of: EP4603183A1
According to the embodiments of the present disclosure, an ammonia decomposition catalyst may be prepared by performing heat treatment on alumina, a lanthanum compound and a cerium compound in a reducing gas atmosphere to form a composite oxide on an alumina support, and supporting an active metal including ruthenium on the composite oxide. According to further embodiments, the present disclosure provides a catalyst with improved dispersibility which is particularly suitable for ammonia decomposition.
Absstract of: CN120505656A
本发明提供了一种电解水催化剂浆料及其制备方法与膜电极及电化学装置和电解水制氢方法。该制备方法包括：将催化剂、树脂、溶剂混合，得到中间溶液；将造孔剂加入所述中间溶液中搅拌，得到电解水催化剂浆料；造孔剂包括碳材料，搅拌的转速小于等于1000转/分钟，所述搅拌的时间小于等于30min。本发明还提供了上述制备方法得到的电解水催化剂浆料，由该电解水催化剂浆料制成的膜电极，包含该膜电极的电化学装置和电解水制氢的方法。上述电解水催化剂浆料可以通过添加造孔剂获得多孔催化层、同时避免造孔剂去除过程引起的催化剂流失，提高膜电极的催化性能和耐久性。
Absstract of: CN120505651A
本发明公开的碱性电解槽用流道密封双极板，通过设置相互交错的多通道氢碱、氧碱气道孔，氢碱、氧碱气道槽，碱液阴极、阳极进液孔和的碱液阴极、阳极进液槽，可为各电解小室提供多个交错分布碱液流通分配通道，使碱液快速充满各个电解小室，确保了各处碱液浓度的均匀一致性，电解小室内的气液两相流场分布更加均匀，上升的气泡能以最快的速度在最近的出口快速排出，降低了气体集聚，消除了电解小室气体死区，降低了碱液电阻电压降，从而降低了碱性电解槽的电解能耗，提高了电解效率；同时通过设置相应流道密封结构，杜绝了各电解小室中氢气、氧气的互串，从而提高了碱性电解槽的氢气、氧气纯度，保障碱性电解槽高安全性、长寿命稳定运行。
Absstract of: CN120502800A
本发明属于电解槽设备技术领域，公开了碱性制氢电解槽的紧固方法，组装完电解槽的零部件结构后，通过液压拉伸器以间隔的方式对拉紧螺栓的顶部进行拉伸预紧，以防止电解槽的各部件窜动；预紧完成后再对电解槽进行多次冷紧和热紧，完成对电解槽的紧固。预紧、冷紧和热紧过程中，液压拉伸器的泵站按照3~8MPa/次的差值进行升压，对拉紧螺栓进行拉伸紧固，将电解槽的零部件压紧，尽可能将缝隙消除，并挤压密封垫圈使其产生形变，提升电解槽的密封效果。本发明的技术方案，增强了对大型碱性制氢电解槽的紧固效果，使电解槽的长期使用状态更加稳定。
Absstract of: CN120505660A
本发明公开了一种固体氧化物电解池片阳极材料及其制备方法和应用，所述固体氧化物电解池片阳极材料包括LSCF颗粒以及在LSCF颗粒表面沉积生长的LNO颗粒，简称为LSCF‑LNO材料；LSCF的化学式为La0.6Sr0.4Co0.2Fe0.8O3，LNO的化学式为La2NiO4，所述LSCF‑LNO材料上LNO的质量是LSCF质量的10%‑50%。本发明充分利用LSCF的优良电子导电率以及LNO的优良氧离子传输性能，并通过两步合成法在以LSCF为主体在其表面形成LNO颗粒增强材料氧表面交换传输能力并增大反应三相界面和氧离子传输通道，以提高高温固体氧化物电解池电化学性能。
Absstract of: CN120505643A
本发明涉及氢能制备技术领域，具体是涉及一种基于光伏发电的集装箱电解水制氢系统，包括有电解结构、正极板和负极板，所述电解结构夹设于所述正极板和所述负极板之间；所述制氢系统还包括用以夹紧所述电解结构的夹紧机构，所述夹紧机构包括有固定设置的正极压板及可沿正极压板轴向移动的负极压板；所述夹紧机构还包括有缩进控制单元，用于在电解结构产生泄漏时缩小正极压板和负极压板之间间距恢复电解结构的密封性。本发明通过压力传感器实时监测电解结构的夹紧力，当发生泄漏导致夹紧力下降时，能够自动触发缩进控制单元，实现极板间距的调整，恢复电解结构的密封性，无需人工干预，大大提高了制氢系统的可靠性和响应速度。
Absstract of: CN120505665A
本发明属于电解水制氢技术领域，公开了碱性水电解槽用PPS复合纤维隔膜及其制备方法，该方法包括采用PPS树脂通过熔喷工艺制备PPS非织造布；将PPS非织造布置于硝酸溶液中进行硝化处理；对硝化后的PPS非织造布进行热压处理得到PPS纤维膜；将PPS纤维膜置于硝酸锌‑二甲基咪唑‑甲醇混合溶液中进行原位生长，得到PPS复合纤维隔膜。本发明采用的硝化、热压和原位自生相结合的方式，不仅在疏水的PPS纤维膜上引入亲水基团提升了其亲水性，还通过纤维间的热交联提高了PPS纤维膜的拉伸强度，同时利用原位自生的具有三维网状结构的ZIF‑8提高了PPS纤维膜的隔气性，本发明制备工艺简单、操作简便，能够满足工业碱性水电解制氢的需求。
Absstract of: CN120504346A
本发明提供了一种溴掺杂的二维镍铁氧化物的制备方法及其应用，属于纳米材料制备技术领域。本发明通过将琥珀酸，乙二醇与金属盐，溴盐在混合溶液中反应，结合焦耳热快速升降温技术，形成了溴离子掺杂的二维多孔结构，该方法合成工艺简单，制备的催化剂在碱性海水电解中实现了较低的过电位优异的稳定性，显著提升了OER反应效率，为海水制氢技术提供了高效、耐用的电化学催化剂。
Absstract of: CN120505670A
本发明公开了一种用于碱水电解制氢的高效低耗长寿命碱液循环系统，包括阴极侧和阳极侧，对于阳极侧，碱水电解制氢装置连接催化转化模块，催化转化模块连接至气液分离模块，气液分离模块液体依次通过碱液循环模块、碱液循环换热器和碱液过滤器连接至电解槽；对于阴极侧，碱水电解制氢装置连接气液分离模块，所述气液分离模块液体的液体输出端依次通过碱液循环模块、碱液循环换热器和碱液过滤器连接至电解槽；阳极侧和阴极侧分别设置相应的碱液控制模块。本发明提高了碱性电解水系统宽负荷波动范围下的适应性，消除了氧自由基对系统设备的腐蚀以及降低了碱液循环泵的功耗，提升了碱水电解制氢系统的经济性。
Absstract of: CN120502331A
本发明公开了一种Ni/Al1.8Ce0.2Ox催化剂及其制备方法和在热催化氨分解制氢中的应用，将可溶性Ni盐、Al盐、Ce盐均匀分散在水中得混合液，再加入络合剂，通过溶胶凝胶法得到络合物前体，然后热解得到氧化物前体，再然后氧化物前体超声分散于水中，加入碱液进行刻蚀，得到刻蚀氧化物前体，最后刻蚀氧化物前体于H2/Ar气氛下焙烧，得到Ni/Al1.8Ce0.2Ox催化剂，用于热催化氨分解制氢。本发明的催化剂具有结构稳定、金属Ni高度分散的特点，通过碱刻蚀处理后，有效抑制了载体对金属Ni的包覆作用，溶出的金属Ni呈金字塔状形貌，具有更多不饱和配位的活性位点，催化剂的催化活性与稳定性显著提高。
Absstract of: CN120505657A
本发明公开了一种钨/氮化钒异质结电催化材料及其制备方法，将氯化钒、氯化钨和草酸溶解在乙醇中，其中氯化钒和氯化钨的摩尔比为(0.5‑3)：(1‑3)，得到混合液；将混合液的pH值调至1‑4后进行水热处理，得到反应液，将反应液中的产物洗涤后干燥，得到粉体；按(200‑600)mg：(0.5‑1.2)mol的比例，将粉体和碳源在氩气气氛下煅烧处理，得到钨/氮化钒异质结电催化材料，简单易行，原料成本低，绿色无污染，在碱性环境中电催化析氢活性高，稳定性强。
Absstract of: JP2024102507A
To provide a water electrolysis stack capable of improving durability.SOLUTION: A water electrolysis stack has a cell laminate in which a plurality of water electrolysis cells are laminated. In the cell laminate, inter-cell regions are formed in adjacent water electrolysis cells, and gas flows in the inter-cell regions during water electrolysis.SELECTED DRAWING: Figure 6
Absstract of: CN120505669A
本发明公开的一对多碱性电解水制氢监测系统，包括若干个碱液循环泵，每个碱液循环泵均管线连接有碱性电解槽，每个碱性电解槽的阴极端共同连接有氢中氧分析组件，每个碱性电解槽的阳极端共同连接有氧中氢分析组件，每个碱性电解槽和氧中氢分析组件之间均管线连接有监测组件，每个监测组件均与氧中氢分析组件连接，每个碱液循环泵共同连接有碱液冷却器，碱液冷却器分别和氢中氧分析组件、氧中氢分析组件连接，每个监测组件均数据连接有控制器。本发明还公开了一对多碱性电解水制氢监测方法。本发明的一对多碱性电解水制氢监测系统及监测方法，解决了无法对每台电解槽的氧中氢含量进行监测的问题。
Absstract of: CN120505642A
本发明公开的用于撬装碱性水电解制氢系统的辅助设备，包括箱体，箱体内设置有用于供电的配电柜间，配电柜间通过线路与设置在箱体内的水处理设备间、空压机设备间和输出设备间分别连接；箱体相对配电柜间位置设有连接外部电源的电源输入口；箱体相对水处理设备间位置设有水源输入口；箱体相对空压机设备间位置设有空气输入口；箱体相对输出设备间位置设有仪表气输出口、原料水输出口、碱液输出口和吹扫气输出口。本发明将纯水制备系统、配碱系统、压缩空气系统、氮气系统进行集成，提高了空间利用率，降低了辅助设备的占用空间。
Absstract of: US2025250688A1
An electrolysis system includes: an electrolysis cell configured to generate hydrogen by high-temperature steam electrolysis; a steam generation unit that has a refrigerant heat exchange unit configured to perform heat exchange between heat of a heat storage unit and a refrigerant, generates a steam by heating raw material water via the refrigerant subjected to the heat exchange in the refrigerant heat exchange unit, and supplies the steam to the electrolysis cell; a heat storage supply unit that has the heat storage unit and configured to supply heat of the heat storage unit to the refrigerant heat exchange unit; and a control unit configured to control the heat storage supply unit such that an amount of heat input to the refrigerant heat exchange unit is smaller during a system startup or during a high-temperature standby than during a normal operation.
Absstract of: CN120505661A
本发明涉及一种可平衡晶格氧消耗与填充的铈钨共掺杂钌氧化物催化剂及其制备方法和应用。本发明通过同时利用AEM‑OER催化剂的桥梁作用和CeOx对晶格氧空位填充的促进作用，在W‑RuO2稳定框架下激活LOM反应，从而平衡晶格氧的消耗与填充，能够实现RuO2在OER中的稳定性和高活性的双重优化，有效克服了单纯利用W掺杂来提高RuO2稳定性的技术以牺牲活性为代价、单纯利用Ce掺杂来激活RuO2晶格氧的以牺牲稳定性为代价的缺陷，实现了晶格氧消耗与补充的动态平衡，使得LOM机制的OER反应稳定运行，突破了传统活性和稳定性无法兼顾的技术瓶颈。
Absstract of: CN120505666A
本发明公开了一种用于碱性电解水制氢的PPS隔膜改性制备方法，包括：预处理、多巴胺亲水处理等步骤。通过上述方式，本发明一种用于碱性电解水制氢的PPS隔膜改性制备方法，有效提升了PPS隔膜的亲水性，并且优化隔膜孔径分布，更加高效的发挥气体阻隔与离子传导作用，且本方法操作流程简单、成本较低，有利于推动PPS隔膜在高性能碱性电解水制氢系统中的广泛应用。
Nº publicación: CN120505639A 19/08/2025
Applicant:
本田技研工业株式会社
Absstract of: US2025266534A1
A water electrolysis system includes: a water electrolysis device including a membrane electrode assembly formed by sandwiching an electrolyte membrane between an anode and a cathode, the water electrolysis device being configured to generate oxygen gas at the anode by supplying water to the cathode and electrolyzing the water; and a water supply device configured to supply, to the anode, water generated in association with power generation of a fuel cell stack.
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