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839
resultados
Última actualización
05/10/2025 [06:59:00]
Resultados 675 a 700 de 839
Resumen de: 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.
Resumen de: AU2023390125A1
Catalyst ink formulas for the preparation of CCMs are described. The catalyst ink formulas comprise a catalyst, an ionomer, a solvent, and a porogen soluble in the solvent. The catalyst ink formula may also comprise an additive, such as an electron conductive polymer. The anode catalyst coating layer or both the anode and the cathode catalyst coating layers prepared from the catalyst ink formula comprises uniformly distributed nanopores that allow easy gas removal and uniform water feed distribution, which will avoid or reduce the direct energy losses for the electrolyzers. Catalyst coated membranes and methods of making a catalyst coated membranes are also described.
Resumen de: WO2024081426A2
The present disclosure relates to circuits for connecting components of a hydrogen plant to a power grid to power the components in an efficient manner. In one implementation, power-side alternate current (AC) to direct current (DC) converters may be connected to a source power grid without the need for an isolation transformer by providing separate buses between the power-side AC-DC converters and load-side DC-DC converters instead of a shared DC bus between the converters. Other implementations for connecting components of a hydrogen plant to a power grid may include an adjustable transformer, such as a tappable transformer or an autotransformer, to connect any number of auxiliary loads of the plant to the power grid. The adjustable transformer may provide for various types of auxiliary load devices to connect to the power provided by the transformer at the same time, including both three-phase devices and one-phase devices.
Resumen de: EP4603490A1
The purpose of the present invention is to provide a compound capable of producing a polymer having excellent alkali durability, a polymer including the compound as a monomer, an electrolyte membrane having excellent alkali durability using the polymer, and a fuel cell and an electrolysis apparatus using the electrolyte membrane. A compound represented by the following Formula (1) and a polymer including the compound as a monomer. (X<1>-)2Ar<1>(-L<1>-R
Resumen de: US2025236972A1
Electrolyzer for production of hydrogen gas and comprising a stack of bipolar electrodes sandwiching ion-transporting membranes between each two of the bipolar electrodes. Each bipolar electrode comprises two metal plates welded together back-to-back forming a coolant compartment in between and having a respective anode surface and an opposite cathode surface, each of which is abutting one of the membranes. The plates are embossed with a major vertical channel and minor channels in a herringbone pattern for transport of oxygen and hydrogen gases. The embossed herringbone pattern is provided on both sides of the metal plates so as to also provide coolant channels in a herringbone pattern inside the coolant compartment.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: US2025250685A1
The water electrolysis system includes: a first cooling device that cools a gas containing a predetermined gas component generated by electrolysis of water to a first cooling temperature that is higher than or equal to a boiling point of the gas component so that the first impurity having a boiling point higher than the first cooling temperature can be separated; a gas-liquid separation device that separates the first impurity from the gas; and a second cooling device that cools the gas from which the first impurity is separated to a second cooling temperature that is lower than the boiling point of the gas component, and liquefies the gas component so that the second impurity having a boiling point lower than the second cooling temperature can be separated as a gas.
Resumen de: WO2025174066A1
The present application relates to a plasmonic phenomenon-based symmetric ammonia electrolysis system and an ammonia electrolysis method using same. A hybrid electrode, according to embodiments of the present application and the symmetric ammonia electrolysis system comprising same, may reactivate the surface of a catalyst by utilizing plasmonic phenomena during an electrochemical reaction by using a plasmonic-active electrode (antenna-reactor) composite electrode.
Resumen de: KR20250124598A
본원 발명은 전극 일체형 다공성 확산체의 제조방법 및 이의 용도에 대한 것이으로 보다 구체적으로는 촉매와 이오노머를 혼합하는 촉매-이오노머 혼합물 제조 단계; 상기 촉매-이오노머 혼합물을 초음파를 이용하여 1차 분산물을 제조하는 초음파 분산단계; 및 상기 1차 분산물을 다공성 확산체의 표면에 초음파 분산 노즐을 이용하여 스프레이 분사하는 단계를 포함하는 전극 일체형 다공성 확산체의 제조방법 및 이로부터 제조된 전극 일체형 다공성 확산체를 이용한 수전해 장치에 대한 것이다. 본원 발명은 촉매와 고분자 이오노머의 혼합물의 분산도를 높일 수 있고, 이에 따라 고분자 이오노머의 함량을 낮출 수 있으므로, 결과적으로 촉매활성을 높여 PEM 수전해의 성능을 대폭 향상시킬 수 있는 장점이 있다.
Resumen de: CN120380621A
A solid oxide cell stack has a combined flow distributor and contact enabler made of a pressed metal foil with diversion structures and contact regions between interconnect layers and cell layers in the stack.
Resumen de: WO2024081205A1
A composition that produces hydrogen includes a nanoparticle or plurality of nanoparticles; an external source of electrons such as an electrogenic bacterium or a plurality of electrogenic bacteria and a carbon source; and an aqueous medium. The nanoparticles and the aqueous medium are combined in a mixture; upon exposure to electromagnetic radiation with a wavelength in the absorption profile of the nanoparticles, the nanoparticles generate an electron that can reduce a proton in the aqueous medium; and the source of electrons is capable of reducing the nanoparticles. The nanoparticles may comprise cadmium chalcogenide or water-soluble cadmium chalcogenide quantum dots. The electrogenic bacterium or bacteria may comprise Shewanella oneidensis, a Geobacter species or any bacterium capable of extracellular electron transfer. The electromagnetic radiation has a wavelength of between approximately 400 and 1100 nanometers, or preferably 530 nm. The aqueous medium may be wastewater and the carbon source may comprise lactate.
Resumen de: 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
Resumen de: 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。
Resumen de: 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。
Resumen de: 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。
Resumen de: 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。
Resumen de: CN120508033A
本发明公开了千方级碱性水电解制氢系统远程运维平台和运维方法，包括设备层、云平台、平台层和应用层，设备层包括千方级制氢设备，千方级制氢设备中安装有监测设备运行的传感器，以及控制设备运行的PLC控制器，云平台设置有公有云或私有云，平台层设置有私有云服务器或本地服务器，应用层设置有本地显示终端和移动显示终端，云平台和平台层都部署有Web组态软件，设备层、云平台和平台层通过无线物联网络连通，云平台与本地显示终端、移动显示终端也分别通过无线物联网络连通，平台层与本地显示终端通过有线专用网络连通，PLC控制器采集传感器传递的数据信号，传递至云平台和平台层，平台层镜像还原千方级制氢电解水制氢系统的现场。
Resumen de: CN120505640A
本发明公开的具有三角形沟槽流道结构的质子交换膜电解槽，包括自上而下依次设置的阳极极板、阳极气体扩散层、膜电极、阴极气体扩散层与阴极极板，阳极极板与阳极气体扩散层之间设有阳极液体流道，阴极极板与阴极气体扩散层之间设有阴极液体流道。本发明的三角形沟槽流道结构的质子交换膜电解槽，促使反应水沿着竖直方向进入气体扩散层，提高到达催化层发生反应的液态水含量，同时减少气体扩散层中氧气的积累，提高了电解槽的产氢效率。
Resumen de: CN120505647A
本发明属于电解水制氢领域，涉及一种梯度孔结构电极及其制备方法与应用，该制备方法包括如下步骤：1)在电极基底表面依次涂敷不同粒径的聚苯乙烯，然后低温烧结将聚苯乙烯固定在电极基底表面，得到固定有聚苯乙烯分子模板的电极基底；2)采用化学镀法在固定有聚苯乙烯分子模板的电极基底表面上电镀金属镀层，得到含有金属镀层的固定有聚苯乙烯分子模板的电极基底；3)对步骤2)得到的含有金属镀层的固定有聚苯乙烯分子模板的电极基底进行去模板和去金属基底处理，得到梯度孔结构电极。本发明通过梯度孔构建了高效三相反应界面，降低气泡屏蔽效应，降低了过电位和电解水能耗，提高了电解水制氢效率。
Nº publicación: CN120505667A 19/08/2025
Solicitante:
中油国家油气钻井装备工程技术研究中心有限公司宝鸡石油机械有限责任公司中国石油天然气集团有限公司
Resumen de: CN120505667A
本发明公开的电解水制氢纯化系统及方法，包括通过氢气管路连接的气水分离器、氢气冷却器、集水器和水封，气水分离器与脱氧器相连，每个氢气冷却器上均连接有一个干燥器；脱氧器、干燥器下部分别接有温度变送器；脱氧器、干燥器内的加热部件上接有温度传感器，通过控制内加热部件温度调节加热器功率，在氢气再生管路和成品氢气管路前装有薄膜调节阀，可根据主氢气流量和系统压力调节再生氢气和系统氢气流量，节省人力的同时也能提高系统运行效率在脱氧器和干燥器接口处分别设置一路安全阀放空管线；当系统出现异常情况时，可通过安全阀管线快速排出容器中的氢气，保证整个纯化系统的安全可靠运行。
BOPI
Sede Electrónica
