Resumen de: CN121451228A
本发明涉及用于电解水的催化剂技术领域,尤其涉及一种金属合金电催化剂及其制备方法,该金属合金电催化剂包括析氧催化剂和析氢催化剂,其中:析氧催化剂包括镍、钴、铜、铁四种元素,且镍、钴、铜、铁四种元素的摩尔比为1:1:1:1;析氢催化剂包括镍、钴、铜、钼四种元素,且镍、钴、铜、钼四种元素的摩尔比8.97:30.41:51.77:8.84。上述的析氢催化剂和析氧催化剂不含贵金属元素,成本低;其制备方法采用大气等离子喷涂技术,适用于工业化推广。
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: 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: CN121451214A
本公开涉及一种PEM电解水膜电极及其制备方法和应用,该制备方法在阳极催化剂浆料中添加了羧甲基纤维素盐和碳纳米管,制得的PEM电解水膜电极具有铱负载量低、活性高、高电流密度下运行稳定的特点,且具有三维多孔道阵列结构,将其用于质子交换膜水电解(PEMWE)制氢时,膜电极的导电性和三相传质性能得到大幅度提高。
Resumen de: CN121446548A
本发明属于新能源与光催化材料技术领域,具体涉及集吸湿、光解水制氢、储氢功能的TiO2/g‑C3N4/MOF复合结构及制备和应用。所述复合结构包括依次层叠的基材、TiO2底层、TiO2/g‑C3N4复合光催化中间层、TiO2保护/种子层与MOF吸湿储氢层;MOF吸湿储氢层吸附空气中水分形成MOF·H2O,光照下经TiO2保护/种子层的纳米通道将水分子传递至TiO2/g‑C3N4复合光催化中间层,触发H2生成,氢气被MOF多孔结构暂存或输出。该复合结构可构筑于金属、玻璃、陶瓷或工程塑料基材表面,并在相对湿度≥20%条件下运行,无需液态水或高压储氢瓶,适用于无人机机翼、车载平台与分布式固态制氢系统。
Resumen de: CN121451232A
本发明公开了一种镍合金电极及其制备方法和应用,该制备方法包括:将镍集流体置于电镀液中进行电镀,以在镍集流体表面形成镍合金层,其中,电镀液包括镍盐、钴盐、铬盐、亚铁盐和助剂,其中,镍盐在电镀液中的浓度为85~115g/L,钴盐在电镀液中的浓度为15~25g/L、铬盐在电镀液中的浓度5~15g/L,亚铁盐在电镀液中的浓度为3~7g/L,且镍合金层中镍与掺杂元素钴、铬、铁的原子比≥2.8,电镀液的pH值为3~5。采用特定配方的电镀液,通过电沉积法制备了Co、Cr、Fe元素掺杂的镍基合金层,实现了基底与催化层之间的原子级结合,不仅具有优异的界面结合强度,还表现出良好的耐久性。
Resumen de: CN121446360A
本发明涉及氢气泡水制备装置技术领域,具体是一种电解水生成纳米氢气泡水的装置及方法,包括机架,机架上从左往右依次固定有进水调节管、文丘里管、导流管和特斯拉阀,进水调节管、文丘里管、导流管和特斯拉阀内部连通以形成连续流路,进水调节管的一端设置有多个延伸至文丘里管入口处并共同围成可变出水口部的调节片,多个调节片通过第一驱动机构驱动能同步进行径向的扩张与收缩运动,以改变可变出水口部的截面积,本发明通过设置“动态文丘里效应初级破碎、联动机械搅拌二级破碎、高速剪切纳米化、特斯拉阀对撞均质”的完整的、逐级递进的处理工序,最终生成纳米氢气泡水中的氢气浓度显著提高,生成的气泡平均粒径更小,粒径分布范围更集中。
Resumen de: TW202507075A
Provided is a method of manufacturing an anion exchange membrane water electrolysis system exhibiting improved durability and efficiency, along with excellent water electrolysis performance.
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: US2024294395A1
A process for preparing metal oxide comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum. The process comprising:reacting a metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum with lithium hydroxide and optionally a chelating agent to obtain a solid comprising a metal hydroxide comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum, and a liquid comprising lithium sulfate, the metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum;separating the liquid and the solid from one another to obtain the metal hydroxide;submitting the liquid comprising lithium sulfate to an electromembrane process for converting the lithium sulfate into lithium hydroxide; andreusing at least a first portion of said lithium hydroxide obtained by the electromembrane process for reacting with the metal sulfate;reacting at least a second portion of said lithium hydroxide obtained by the electromembrane process with the obtained metal hydroxide to obtain a mixture of metal hydroxides; androasting said mixture of metal hydroxides to obtain the metal oxide.
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)
Resumen de: AU2023408768A1
A method of hydrogen production includes providing a solution and immersing a device in the solution. The device includes a substrate having a surface, an array of conductive projections supported by the substrate and extending outward from the surface of the substrate, and a plurality of catalyst nanoparticles disposed over the array of conductive projections. The solution includes dissolved sodium chloride (NaCl).
Resumen de: CN120677016A
Provided herein are water-reactive aluminum compositions comprising aluminum or an alloy thereof and an activating metal alloy (e.g., a non-eutectic activating metal alloy comprising bismuth, tin, indium, and gallium; or an activating metal alloy comprising bismuth, tin and indium). Some water-reactive aluminum compositions provided herein are free of gallium. Also provided herein are methods of activating aluminum to provide a water-reactive aluminum composition. Also provided are fuel mixtures comprising the water-reactive aluminum composition described herein and a water-reactive aluminum composition having an increased gallium content; and methods of providing hydrogen and/or steam using the water-reactive aluminum compositions described herein.
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: 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。
Resumen de: DE102024207270A1
Die Erfindung betrifft ein Verfahren zum Betreiben eines Elektrolysesystems (1), umfassend einen Elektrolysestack (2) mit einer Anode (2.1) und einer Kathode (2.2) sowie einen Elektrolytkreislauf (3), über den der Anode (2.1) ein Elektrolyt, vorzugsweise Wasser oder eine wässrige Lösung, zugeführt wird, wobei in den Elektrolytkreislauf (3) eine Kühleinrichtung (4) integriert ist, mit deren Hilfe der Elektrolyt gekühlt wird, bevor er über den Elektrolytkreislauf (3) erneut der Anode (2.1) zugeführt wird. Das Verfahren zeichnet sich erfindungsgemäß durch folgende Schritte aus:a) Prognostizieren einer maximal verfügbaren Kühlleistung der Kühleinrichtung (4),b) Bestimmen der Elektrolyt-Temperatur im Elektrolytkreislauf (3) stromabwärts der Kühleinrichtung (4) und stromaufwärts einer temperaturkritischen Komponente (5), vorzugsweise eines Ionentauschers, die bzw. der in einem Nebenpfad (6) angeordnet ist, der stromabwärts der Kühleinrichtung (4) über ein Ventil (7) mit dem Elektrolytkreislauf (3) verbundenen ist, wobei die Elektrolyt-Temperatur anhand der in Schritt a) prognostizierten maximal verfügbaren Kühlleistung bestimmt wird,c) Vergleichen der in Schritt b) bestimmten Elektrolyt-Temperatur mit einem vorab definierten Maximalwert sowied) zumindest teilweises Schließen des Ventils (7), wenn der Vergleich in Schritt c) ergibt, dass der Maximalwert überschritten wird.Die Erfindung betrifft ferner ein Elektrolysesystem (1), das zur Durchführung des Verfah
Resumen de: CN121451200A
本发明涉及制氢电解槽技术领域,尤其涉及一种用于碱性水电解槽防气蚀监控系统,包括:气泡分割模块、监控标记模块、防气蚀分析模块、监控分析模块以及气蚀预警模块,气泡分割模块分割并拦截上升气泡,将气蚀作用从电解槽内壁转移至该可更换的分解网上;监控标记模块对分解网进行全域标记,并根据标记存在状态,确定各气蚀分析区域的气蚀均匀表征参量,确定气蚀分析区域的气蚀均匀类型;监控分析模块对应气蚀分析区域的监控分析方式,气蚀预警模块根据判定结果发出预警,本发明对气蚀稳定区域保持高效监测以优化资源,对波动区域则深入分析内应力分布以诊断根源;通过动态调整分解网水平位置,实现气蚀磨损的主动均衡化管理。
Resumen de: CN121451204A
本发明涉及一种提升合成气电解效率的鱼骨型流场固体氧化物电解槽几何结构及其工作方法,其特征在于:其中提升合成气电解效率的鱼骨型流场固体氧化物电解槽几何结构包括相对设置的呈现鱼骨型的阴极流场和阳极流场,以及阴阳流场之间的隔层,所述的阴极流场及阳极流场的对角线设计为中空流道,对角线中空流道对称分布直型流道。阴阳极流场的其余部分形成连接体。该流道结构设计合理,有利于改善反应气的传输效率和分布均匀性,提高电解槽的工作性能。
Nº publicación: CN121451216A 03/02/2026
Solicitante:
清华大学深圳国际研究生院
Resumen de: CN121451216A
本发明提供一种用于电解海水的耐氯腐蚀阴极及其制备方法和应用。所述制备方法包括如下步骤:S1、将钴盐、镍盐、形貌调控剂和结构导向剂按照摩尔比为(1~2.5):(1~2.5):(8~12):(6~10)溶解于溶剂中,搅拌形成第一溶液;S2、将钛网和第一溶液在100~150℃下进行水热反应,以在钛网上原位生长形貌为纳米针阵列的CoNi层状双氢氧化物;S3、将硒粉和还原剂按照摩尔比1:0.8~1.5溶解于溶剂中搅拌形成第二溶液;S4、将原位生长有CoNi层状双氢氧化物的钛网和第二溶液在150~190℃下进行水热反应,以在钛网上原位生长形貌为纳米针阵列的钴镍双金属硒化物,得到耐氯腐蚀阴极。