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1033
resultados
Última actualización
23/03/2026 [07:02:00]
Resultados 650 a 675 de 1033
Resumen de: WO2025012277A1
The invention relates to a method for the preparation of H2 from NH3. NH3 is introduced into a fixed-bed reactor at a gas temperature in the range from 550 to 850°C, in which fixed-bed reactor NH3 is decomposed on an NH3 decomposition catalyst partly into H2 and N2. The gas mixture obtained in this manner is discharged from the fixed-bed reactor at a gas temperature in the range from 300 to 700°C, is heated to a temperature in the range from 550 to 700°C and is then introduced into a tubular reactor in which further NH3 is decomposed on a nickel-based NH3 decomposition catalyst into H2 and N2. The gas mixture obtained in this manner is discharged from the tubular reactor at a gas temperature in the range from 550 to 750°C.
Resumen de: US2024401524A1
The present disclosure relates to a gas turbine plant that decomposes ammonia and supplies it as fuel to a combustor of a gas turbine. The gas turbine plant supplies sufficient heat to the ammonia in order to thermally decompose the ammonia effectively, and separates the residual ammonia present in the decomposition gas and supplies it to a combustor of the gas turbine.
Resumen de: JP2026017255A
【課題】触媒層における気液の入れ替わりを円滑化できる技術を提供する。【解決手段】膜・触媒層接合体は、電解質膜と、電解質膜の表面に形成された触媒層と、を備える。触媒層は、第１アイオノマー８３および第２アイオノマー８４を含む。第２アイオノマー８４のＥＷ値は、第１アイオノマー８３のＥＷ値よりも高い。このようにすれば、触媒層中に、第１アイオノマー８３により比較的親水性が高くなる第１領域Ａ１と、第２アイオノマー８４により比較的親水性が低くなる第２領域Ａ２とが形成される。これにより、触媒層において、気液の入れ替わりを円滑に行うことができる。【選択図】図４
Resumen de: JP2026017230A
【課題】水素発生の起動と停止を繰り返し行う場合でも、隔膜への触媒付着を抑え、長期にわたって安定運転可能なアルカリ水電解セルを提供する。【解決手段】隔膜１と、該隔膜１を隔てて配置された酸素発生陽極２及び水素発生陰極３とを具え、酸素発生陽極２と水素発生陰極３の少なくともいずれか一方の電極が、導電性基材２ａ，３ａと、該導電性基材の表面上に配置された触媒層２ｂ，２ｃ，３ｂ，３ｃとを含み、前記隔膜１と向かい合わせる面から蛍光Ｘ線分析法を用いて解析した触媒層２ｃ，３ｃの金属原子濃度／導電性基材２ａ，３ａの金属原子濃度比Ｒ１と、隔膜１と反対の面から蛍光Ｘ線分析法を用いて解析した触媒層２ｂ，３ｂの金属原子濃度／導電性基材２ａ，３ａの金属原子濃度比Ｒ２との比（Ｒ１／Ｒ２）の値が０以上１未満であることを特徴とする、アルカリ水電解セル１０である。【選択図】図１
Resumen de: JP2026017268A
【課題】従来よりも高い耐久性を発揮する観点から有利な新規の水電解用電極を提供する。【解決手段】水電解用電極１は、導電性基材１０と、層状複水酸化物（ＬＤＨ）層２０とを備えている。ＬＤＨ層２０は、導電性基材１０上に設けられている。ＬＤＨ層２０のクラック頻度は、０．１８個／μｍ未満である。ＬＤＨ層２０のクラック頻度は、導電性基材１０とＬＤＨ層２０との間の単位界面長さ当たりのＬＤＨ層２０におけるクラックの個数である。【選択図】図１
Resumen de: JP2026017267A
【課題】従来よりも高い耐久性を発揮する観点から有利な新規の水電解用電極を提供する。【解決手段】水電解用電極１は、導電性基材１０と、層状複水酸化物（ＬＤＨ）層２０とを備えている。ＬＤＨ層２０は、導電性基材１０上に設けられている。ＬＤＨ層２０の最小厚みｔ20は、５４０ｎｍ未満である。【選択図】図１
Resumen de: TW202503114A
Provided are a gas production method and a gas production apparatus that are capable of preventing the composition of generated gas in a gas phase part of each circulation tank from reaching a flammability limit to reduce a bad effect of a remaining dissolved gas in electrolyte on gas purity even when an electrolyte exchange is carried out between an anode side circulation tank and a cathode side circulation tank. In the gas production method of producing oxygen gas and hydrogen gas by electrolyzing electrolyte which is alkaline water by means of an electrolysis vessel, the electrolyte is depressurized when an electrolyte on the anode side and an electrolyte on the cathode side are exchanged.
Resumen de: EP4686773A1
A frame assembly (Fr.Ass) comprising a frame (TF) configured to be integrated in a stack of frames of an electrolyzer, the frame comprising a central opening (CentOp), a first through opening (In<sub>2</sub>, Out<sub>2</sub>), a top surface (Top) and a bottom surface (Bot) opposed to the top surface (Top), the frame further comprising an open channel (OpCh) on the bottom surface (Bot), the frame assembly comprising a bipolar plate (BP) formed from a polymer material, the bipolar plate being arranged so as to seal the open channel (OpChan), the bipolar plate being welded to the frame (TF).
Resumen de: CN121451229A
本发明属于析氢电极技术领域，公开了一种高催化活性的析氢电极材料及其制备方法和应用，制备方法包括以下步骤：步骤1，清洗泡沫镍；步骤2，通过水热法在泡沫镍上制备钨铁铬共掺杂的羟基氟化钴/泡沫镍前驱体WFeCrCo(OH)F/NF；步骤3，将步骤2得到的WFeCrCo(OH)F/NF和次磷酸钠粉末分别放置在陶瓷舟的两个不同位置，次磷酸钠粉末位于管式炉的上游侧，在保护气体环境下保温，然后自然冷却到室温，得到钨铁铬共掺杂的磷化钴复合电极材料WFeCr‑CoP/NF。本发明通过钨、铁、铬三种元素的协同掺杂，提高了镍基析氢电极材料的催化活性。
Resumen de: CN121446522A
本发明公开了一种压电极化诱导光生载流子转移的Z型异质结复合催化剂制备方法，利用多铁性BiFeO3和有利的可见光响应CdS纳米片构建了具有主动电子传输特性的Z型异质结构，不仅优化了光吸收能力和能带结构，还降低了界面电阻和光生载流子重组，BiFeO3颗粒与超薄CdS的结合不仅抑制了CdS纳米片的团聚，还有助于提高反应体系的比表面积。本发明利用多铁性BiFeO3和有利的可见光响应CdS纳米片构建了具有主动电子传输特性的Z型异质结构。该活性电子传输系统的构建促进了载流子的分离和传输，为提高光催化制氢反应活性提供了一种新的策略。
Resumen de: CN121451206A
本发明涉及催化剂技术领域，涉及一种电解水装置、催化剂及其应用。膜电极包括离子交换膜和设于离子交换膜的催化层，催化层包括催化剂，催化剂包括基体及设于基体表面的第一包覆层，基体包括内核及设于内核表面的第二包覆层；第一包覆层包括金属原子、金属单质、金属氧化物、金属合金中的至少一种，金属原子、金属单质、金属氧化物、金属合金中的金属元素包括第一贵金属元素和/或第一过渡金属元素；内核包括合金，合金至少包括M元素和N元素，M元素包括第二贵金属元素或非贵金属元素，N元素包括稀土金属元素或第二过渡金属元素，第一贵金属元素与第二贵金属元素不同；第二包覆层包括M金属。本申请的催化剂具有较好的稳定性和催化活性。
Resumen de: CN121451243A
本申请公开了一种电解水制氢系统的控制指令确定方法、系统及电子设备。其中，该方法包括：获取在当前数据采集周期内电解水制氢系统的可再生能源发电设备的第一发电量，电解水制氢系统的储能设备的第一荷电状态，以及电解水制氢系统的电解槽的第一运行参数和第一退化特征参数；基于第一运行参数和第一退化特征参数，确定电解槽的第一预测剩余寿命；基于第一发电量，第一荷电状态，以及第一预测剩余寿命，确定电解水制氢系统的预测控制指令，其中，预测控制指令中包括电解槽的目标运行电流和储能设备的目标充放电功率。本申请解决了相关技术中存在的电解水制氢系统的预测控制指令确定结果不准确的技术问题。
Resumen de: WO2026023894A1
The present invention relates to a separator which comprises a porous substrate and a mesh substrate laminated on one surface of the porous substrate, and which solves the problem of pinholes occurring in a conventional commercial separator by specifying the porosity of the porous substrate and also has high chemical/mechanical strength while maintaining the pore characteristics of the porous substrate and, simultaneously, can maintain a high level of electrolysis efficiency.
Resumen de: TW202508960A
Method and system for producing a hydrogen product from ammonia, comprising: optionally at least one pre-cracking reactor, such as an adiabatic pre-cracking reactor, arranged to receive an ammonia feed stream, thereby producing a partly converted ammonia feed stream comprising ammonia, hydrogen and nitrogen; an ammonia cracking reactor such as an electrically heated reactor. The reactor is arranged to receive the partly converted ammonia feed stream or the ammonia feed stream for producing an effluent gas stream comprising hydrogen and nitrogen and optionally also unconverted ammonia; and a hydrogen recovery unit arranged to receive the effluent gas stream for producing the hydrogen product and an off-gas stream comprising hydrogen, nitrogen and optionally unconverted ammonia.
Resumen de: MX2025014062A
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: CN121451234A
本发明提供一种低铂‑镍铁氮复合自支撑电极，所述的低铂‑镍铁氮复合自支撑电极通过如下方法制备：以铂片作为阳极，镍片作为阴极，阳极与阴极间距为2~3 cm，以含有三氯化铁和三聚氰胺的盐酸水溶液为电解液，在恒定电压10~30 V、温度40~60 ℃的条件下，进行电化学阳极氧化和阴极电沉积耦合反应1~5 h，在阴极沉积得到所述低铂‑镍铁氮复合自支撑电极；该方法在控制低铂沉积量的同时，复合了镍、铁和氮元素，增加了自支撑催化剂的双功能性，避免了催化剂的团聚或脱落的问题，增强了催化活性，在工业化应用方面具有广阔的应用前景。
Resumen de: CN121451219A
本发明属于二维纳米材料电催化剂制备技术领域，具体涉及一种非晶态Sr‑CoOOHv超薄纳米片电催化剂及制备方法和应用。本发明通过水热法制备锶掺杂硒化钴纳米带作为基底，并在碱性电解水阳极析氧反应条件下发生原位电化学重构所得。本发明提供的富含钴空位的Sr‑CoOOHv超薄纳米片由于金属钴空位存在不仅能增强钴‑氧共价性活化晶格氧，同时也能提高羟基亲和力填充晶格氧，使得该催化剂在阴离子交换膜电解水制氢工业化应用中展示出优异的催化活性和耐久性。
Resumen de: CN121451213A
本发明提供了一种电解制氢斥固阴极及其改性方法和应用，改性方法包括以下步骤：对HER电极进行预处理，去除HER电极表面的有机物和氧化层，得到预处理后的HER电极；将预处理后的HER电极浸渍在含有银离子的电镀液或化学镀液中进行电镀或者化学镀，使银颗粒沉积在HER电极的表面，得到改性的电解制氢斥固阴极。
Resumen de: CN121446516A
本发明涉及制氢技术领域，公开一种氨分解制氢催化剂的制备方法及应用，包括以超细纳米为基础载体，通过并流共沉淀法引入助剂金属氧化物进行改性，再负载活性组分Ni和贵金属助剂制成。其制备方法关键在于：先采用回流法合成超细纳米悬浮液，再与助剂金属盐混合，通过并流共沉淀形成混合凝胶，经老化、洗涤、干燥、焙烧得到高比表面积、高热稳定性的催化剂载体，最后通过分步浸渍法负载活性金属组分。该催化剂在氨分解制氢反应中，尤其在450‑750℃、1‑3 MPa的加压条件下，表现出优异的低温活性、高氨转化率和长周期稳定性，适用于固定床反应器中的高效制氢过程。
Resumen de: WO2026023125A1
This hydrogen production system comprises: a hydrogen compound member; a water supply member for supplying water to the hydrogen compound member; and a heat recovery device for recovering adsorption heat that is generated when hydrogen, which is generated by decomposing some of water into hydrogen and oxygen in the presence of the hydrogen compound member, is adsorbed to the hydrogen compound member. This hydrocarbon production system comprises: a hydrogen compound member; a water supply member for supplying water to the hydrogen compound member; a heat recovery device for recovering adsorption heat that is generated when hydrogen, which is generated by decomposing some of water into hydrogen and oxygen in the presence of the hydrogen compound member, is adsorbed to the hydrogen compound member; a heating device for heating the hydrogen compound member to which hydrogen is adsorbed; and a gas supply device for supplying a carbon dioxide-containing gas that contains carbon dioxide to the hydrogen compound member.
Resumen de: CN121449911A
本发明提供的技术方案为，一种铁基金属有机框架催化剂的制备方法，制备凝胶状前体，所述凝胶状前体由含铁盐的溶液和含有机配体的溶液搅拌混合而成；（2）将铁源浸泡在制得的所述凝胶状前体中，采用微波加热法制得最终的催化剂。本发明的优点在于，通过金属铁与有机配体的定向配位构建稳定框架结构，在实现高比表面积，提供丰富且稳定的活性位点的同时，有效优化铁位点的电子结构，协同提升氧析出反应活性和催化剂稳定性。本发明的制备方法快速，绿色、温和环保，且可以放大规模生产。
Resumen de: CN116491864A
The invention is applicable to the technical field of cleaning appliances, and discloses a bottom cover assembly, which seals the bottom of an integrated water tank comprising a clear water tank and a sewage tank, and comprises: an electricity taking access device for connecting a water electrolysis module arranged in the clear water tank to an external power supply interface of the water tank; the upper surface of the bottom cover middle frame seals the clear water tank and/or the sewage tank, the lower surface of the bottom cover middle frame defines a wiring cavity used for connection of the electricity taking access device, the lower surface of the bottom cover middle frame is provided with a bearing ring rib used for supporting the weight of the integrated water tank, and the electricity taking access device is installed on the upper surface or the lower surface of the bottom cover middle frame. The invention further discloses the integrated water tank comprising the bottom cover assembly. The electricity taking access device arranged on the bottom cover assembly and used for taking electricity from the water electrolysis module is far away from the clear water outlet, so that the short circuit of the electricity taking access device caused by water leakage is avoided; the bottom cover assembly not only ensures complete insulation and isolation of the water tank and the electricity taking electrode of the water electrolysis module, but also ensures continuous maintainabi
Resumen de: CN121447048A
本发明提出了一种3D PtNi多枝纳米结构及其制备方法和应用，所述制备方法包括以下步骤：将19‑20mg 乙酰丙酮铂、25‑26mg乙酰丙酮镍、31‑32mg 十六烷基三甲基氯化铵和 90mg葡萄糖超声分散于20mL油胺中，得到溶液A，超声时间大于1.5h；将将溶液A在密闭条件下加热反应后，自然冷却至室温，得到溶液B；将溶液B离心得到中间产物，中间产物经洗涤后，在真空环境下干燥，得到3D PtNi多枝纳米结构。本发明的3D PtNi多枝纳米结构作为电催化剂具有优异的析氢性能，表现出超低过电位、超高质量活性、双电层电容以及稳定性。
Resumen de: CN121451211A
本发明属于电解水制氢技术领域，公开了一种阴离子交换膜电解水膜电极组件及其制备方法。该阴离子交换膜电解水膜电极组件包括阴离子交换膜、阳极气体扩散电极和阴极气体扩散电极，其中：阳极气体扩散电极包括阳极催化层和阳极气体扩散层，阴极气体扩散电极包括阴极催化层和阴极气体扩散层；阳极催化层包括第一阳极催化层和第二阳极催化层，第一阳极催化层和第二阳极催化层由内至外依次附着于阳极扩散层的表面，且第一阳极催化层的孔径大于第二阳极催化层的孔径。本发明通过设置第一阳极催化层和第二阳极催化层，形成了孔径梯度分布的阳极催化层结构，同时提高了该阴离子交换膜电解水膜电极组件的活性与稳定性。
Nº publicación: JP2026504204A 03/02/2026
Solicitante:
シェフラーテクノロジーズアー・ゲーウントコー．カー・ゲー
Resumen de: CN120659909A
An electrochemical cell stack (1) comprising a plurality of cells (2) separated from one another by bipolar plates (5, 5 '), where each cell (2) is formed by two half-cells (3, 4) between which a membrane (6) surrounded by a support frame (7) is arranged, and where a porous transport layer (10, 11) is present in each half-cell (3, 4). The support frame (7) describes a step shape having two adjacent cross-sectional areas (12, 13), in which the edge (18) of the membrane (6) lies in a step (17) formed by the cross-sectional areas (12, 13) and the porous transport layer (10) of the half-cell (3) extends into the step (17), and in which the porous transport layer (10) of the half-cell (3) extends into the step (17). According to the invention, the support frame (7) comprises at least one sealing arrangement (15) injection molded onto the support frame (7) and comprising an electrically insulating sealing material, according to the invention, the sealing arrangement (15) comprises three sealing regions (19, 20, 21), each having at least one sealing lip (22, 22 '), in particular a first sealing region (19) and a second sealing region (20) and a third sealing region (21), which are assigned to narrower regions of the two cross-sectional regions (12, 13) facing the membrane (6), the first sealing region and the second sealing region each contact exactly one bipolar plate (5, 5 '), and the third sealing region is located on a side of the support frame (7) facing away from the step (17)
BOPI
Sede Electrónica
