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Última actualización
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Resultados 850 a 875 de 970
Resumen de: US20260233204A1
0000 A catalyst for decomposition of ammonia and a method for decomposition of ammonia using the catalyst. The catalyst includes a carrier and a catalytically active components supported on the carrier, the catalytically active components including i) ruthenium (Ru) as a first metal; ii) a second metal; and iii) a third metal, wherein each of the second metal and the third metal is independently one or more selected from the group consisting of lanthanum (La), cerium (Ce), aluminum (Al), and zirconium (Zr), the amount of the first metal ruthenium is 0.1 to 1 part by weight, based on 100 parts by weight of the total catalyst, the porosity is 30 to 60%, and the median value of pore diameter is 50 to 200 μm.
Resumen de: US20260233991A1
0000 A hydrogen carrier manufacturing system includes a hydrogen manufacturing device configured to manufacture hydrogen by using power; a hydrogen tank configured to store the hydrogen manufactured by the hydrogen manufacturing device; and a plurality of hydrogen carrier manufacturing devices configured to convert the hydrogen stored in the hydrogen tank into different types of hydrogen carriers.
Resumen de: GB2703723A
A method of producing hydrogen may comprise, receiving an ammonia fuel source and an oxidised first form of a metal oxide at a first reactor 11, and reacting to produce a second form of the metal oxide. The second form of the metal oxide may be transferred to a second reactor 12 and reacted with a water supply to form hydrogen and a third form of the metal oxide. The third form the metal oxide may be transferred to a third reactor 13 and reacted with a supply of air and/or oxygen to produce the oxidised first form of the metal oxide, which is then transferred to the first reactor. The metal oxide may be circulated through the three reactors in a flow loop. The metal oxide is preferably iron oxide, where the first form is Fe2O3, the second form is Fe/Fex-σOy-σ, and the third form is Fe3O4. Figure 1
Resumen de: EP4570366A1
0001 The present disclosure relates to apparatuses for producing nanoparticles from a material mixed with a working liquid and optionally to produce hydrogen, and to top-down methods for producing nanoparticles and optionally hydrogen using such apparatuses. A core of such an apparatus comprises a first disc (11) and a second disc (12) including holes (7) arranged in concentric rings (16) and channel portions (18) between those rings. The first disc and the second disc are arranged such that the channels of each disc face the rings of the other disc.
Resumen de: EP4790030A1
Provided is a zero-carbon glass furnace process, a system required for the process includes a photovoltaic power generation unit, an air separation unit, a water electrolysis hydrogen production unit, a mixer, a methanation unit, a first waste heat boiler, a reforming unit, a glass furnace, a second waste heat boiler, and a dedusting and desulfurization unit. The present disclosure adopts green electricity to produce green oxygen, green nitrogen and green hydrogen; flue gas of the glass furnace is circularly enriched into a high concentration of carbon dioxide (95.0v% or higher), which is methanized with green hydrogen to produce methane, and the methane is reformed with carbon dioxide and water vapor to produce carbon monoxide and hydrogen; the carbon monoxide and hydrogen are used as fuel of the glass furnace, the oxygen and carbon dioxide are mixed into carbon-based enriched oxygen as a combustion aid of the glass furnace, and the excess carbon dioxide is sold externally, achieving the purpose of green, energy-saving, almost nitrogen oxide-free and zero carbon.
Resumen de: WO2025037092A1
A membrane-electrode assembly for a water electrolyser is provided. The membrane- electrode assembly comprises a polymer electrolyte membrane with a first face and a second face; an anode catalyst layer on the first face of the membrane, the anode catalyst layer comprising an oxygen evolution reaction catalyst; and a porous web of polymer fibres in contact with the anode catalyst layer, the polymer fibres comprising a conductive metal additive.
Resumen de: EP4790015A1
0001 Die vorliegende Erfindung betrifft ein Verfahren zur Gewinnung von atomarem Wasserstoff aus einem Rohgas. Weiterhin wird atomarer Wasserstoff, erhältlich gemäß dem erfindungsgemäßen Verfahren bereitgestellt. Schließlich ist die vorliegende Erfindung auf ein Verfahren zur Herstellung von elementarem Metall aus einem Metalloxid mit Hilfe von atomarem Wasserstoff gerichtet.
Resumen de: WO2025012373A1
The invention relates to porous oxidic materials, which contain niobium and/or the heavy homolog thereof, tantalium, of oxidation number +5, and to the use thereof. The invention also relates to iridium-containing (electro-)catalysts, which comprise a porous oxidic group 5 element material, in particular a porous oxidic niobium(V)- and/or tantalium(V)-containing material. The invention further relates to the use of (electro-)catalysts of this type.
Resumen de: EP4790295A1
0001 Provided is a multilayer resin pipe suitable for use in a water electrolysis system operating at high voltage, a water electrolysis system including the multilayer resin pipe, and a method of transporting hydrogen using the multilayer resin pipe. The multilayer resin pipe includes an electrically insulating main pipe, an electrically insulating pressure-resistant layer covering an outer surface of the main pipe, an electrically insulating gas barrier layer covering an inner surface of the main pipe, and an electrically insulating elution-suppressing layer covering an inner surface of the gas barrier layer.
Resumen de: EP4790170A1
A control device includes a step of determining a current command value to be applied to an electrolysis stack; and a step of determining a pure water adjustment amount command value for adjusting a pressure or/and a flow rate of water to be supplied to the electrolysis stack based on the current command value, and includes a step A of causing an actually measured value of the pressure or/and the flow rate to reach a second pure water adjustment amount command value (pure water adjustment amount command value w2) from a first pure water adjustment amount command value (pure water adjustment amount command value w1) before an actually measured value of a current applied from a power converter to the electrolysis stack reaches a second current command value (current command value c2) from a first current command value (current command value c1) when the current command value is changed from the first current command value to the second current command value that is a different value and the pure water adjustment amount command value is changed from the first pure water adjustment amount command value to the second pure water adjustment amount command value that is a different value.
Resumen de: EP4534727A1
The present invention relates to a tightening apparatus for selectively opening and closing respective adjacent electrolysis cells in an electrolyser. The tightening apparatus comprises: a movable member moveable in a first direction and a second direction, the first direction being a direction in which the cells are to be closed each other and the second direction being an opposite direction to the first direction; at least one actuator configured to move the movable member selectively in the first and second directions; a pressure plate arranged on the first direction side with respect to the movable member; and a spacer arranged between the pressure plate and the movable member.
Resumen de: EP4534726A1
0001 The present invention relates to a tightening apparatus for selectively opening and closing respective adjacent electrolysis cells in an electrolyser. The tightening apparatus comprises: a movable member moveable in a first direction and a second direction, the first direction being a direction in which the cells are closed each other and the second direction being an opposite direction to the first direction; at least one main actuator configured to move the movable member selectively in the first and second directions; a pressure plate arranged on the first direction side with respect to the movable member; and a sub-actuator configured to move the pressure plate selectively in the first and second directions with respect to the moveable member.
Resumen de: KR20260122570A
본 개시의 일 실시예에 따른 수전해 시스템은 애노드, 캐소드 및 분리막을 포함하는 수전해 스택; 상기 수전해 스택과 기능적으로 연결된 주변장치; 및 상기 수전해 스택 및 주변장치와 기능적으로 연결된 제어부를 포함하고, 상기 주변장치는, 상기 캐소드 출구에 배치되는 제1 기액분리기; 상기 제1 기액분리기 후단에 배치되는 재순환 펌프; 및 상기 재순환 펌프로부터 상기 제1 기액분리기의 응축수를 전달받아 저장하는 공급수 저장 탱크;를 포함할 수 있다. 본 개시의 일 실시예에 따른 수전해 시스템의 운전 방법은, 비상정지 신호를 입수하는 동작; 스택으로의 전력공급을 차단하는 동작; 밸브를 개방하는 동작; 펌프를 작동하는 동작; 펌프 작동을 정지하는 동작; 및 밸브를 폐쇄하는 동작을 포함할 수 있다.
Resumen de: KR20230148522A
The present invention relates to a polymer electrolyte water electrolysis apparatus, comprising: an ion exchange membrane through which ions can move; a positive electrode in which one side is in contact with one side of the ion exchange membrane and an oxygen generating catalyst is supported; a negative electrode in which one side is in contact with the other side of the ion exchange membrane and a hydrogen generating catalyst is supported; a positive electrode flow path connected to the other side of the positive electrode; a negative electrode flow path connected to the other side of the negative electrode; and a thermal flow path part disposed on any one side of the positive electrode flow path such that thermal fluid can circulate, wherein the temperature of the water electrolysis apparatus is maintained at a temperature of 80 ℃ or more and 90 ℃ or less, thereby improving the rate of electrolysis reaction and reducing the amount of electricity used in a water electrolysis process.
Resumen de: WO2025080121A2
The present invention discloses an electrolyser for water splitting in hydrogen/oxygen production and methods thereof. The electrolyser comprises a first electrode plate (100) coated with a first catalyst comprising a first ion transfer opening (101) formed therethrough along a first lateral axis of the first electrode plate (100); a second electrode plate (200) coated with a second catalyst comprising a second ion transfer opening (201) formed therethrough along a second lateral axis of the second electrode plate (200); and an electrically insulative adhesive layer (300) configured for securing together the first electrode plate (100) and the second electrode plate (200) in a face-to-face manner or a back-to-face manner, forming separate compartments each for a hydrogen gas and an oxygen gas resulting from the water splitting that provide immunity against any mixing of the hydrogen gas and the oxygen gas at any level of an electrical power supply.
Resumen de: CN122542992A
本发明涉及铁镍催化电极制备技术领域，本发明公开了一种形貌可控的铁镍氧化物催化电极及其制备方法，通过磁控溅射在镍基体上掺杂元素，随后通过碱液浸泡去除掺杂元素，在镍基体上制备得到铁镍氧化物纳米片；纳米片的形貌可控，通过控制掺杂元素的磁控溅射电流密度，即可控制铁镍氧化物纳米片的尺寸大小，进而调控制备得到的铁镍氧化物电极的比表面积和电学性能；使得铁镍氧化物电极的性能能够得以优化提升。本发明的制备方法制备得到的铁镍氧化物电极表面具有厚度为50nm‑300nm的铁镍氧化物纳米层，在100mA/cm2电流密度下的过电位仅为292mV，且运行24h不发生明显衰减，具有优异而稳定的电性能；适宜推广应用。
Resumen de: CN122543083A
0001 本申请涉及电解水制氢领域，并提供了一种过渡金属单原子多孔碳基贵金属催化剂的制备方法及应用，方法包括：制备过渡金属掺杂ZIF‑8前驱体；向过渡金属掺杂ZIF‑8前驱体中加入模板剂的醇水溶液，研磨并干燥，经热解处理，冷却，经水洗、抽滤，制得富含介孔的过渡金属‑氮‑碳复合材料；将富含介孔的过渡金属‑氮‑碳复合材料与氨气源前驱体混合，于惰性气氛下进行热解处理，制得富含微孔和介孔的过渡金属‑氮‑碳复合材料；采用化学气相沉积法，得到过渡金属单原子多孔碳基贵金属催化剂。上述的制备方法，克服现有阴离子交换膜电解水阴极催化剂在高电流密度下存在的活性位点易团聚失活、气泡排阻严重以及三相界面传质极化高的问题。
Resumen de: CN122543095A
0001 本发明涉及光电化学领域，公开了一种钨掺杂钒酸铋单晶电极及其制备方法，其中，单晶电极包括：绝缘支撑衬底；设置在绝缘支撑衬底之上指定区域的导电层；贴合在导电层之上的钨掺杂钒酸铋单晶层；钨掺杂钒酸铋单晶层的表面粗糙度Sa为0.5 nm~5.0 nm，厚度为0.2mm~1mm；钨掺杂钒酸铋单晶层的周边使用绝缘防水材料进行封装，并且绝缘防水材料覆盖所述导电层的外露区域。本发明可以提高单晶电极的化学稳定性和光分解水能力。
Resumen de: CN122543100A
本发明公开了一种镍铁基催化电极及其制备方法和应用，属于析氧催化电极技术领域。本发明将泡沫镍采用HCl溶液超声清洗、洗涤、干燥得到预处理泡沫镍；将预处理泡沫镍浸泡于FeCl3溶液中，然后取出洗涤、干燥得到NiFe LDH催化电极；将NiFe LDH催化电极浸泡于NaBH4溶液中，然后取出洗涤、干燥得到NiFe LDH@NiFeB复合催化电极。本发明通过浸渍腐蚀结合还原在电极表面得到NiFe基两相催化电极，LDH具有较大的比表面积，活性位点多，能加快活性物质的吸附与转化，而原位还原得到的NiFe B合金具有较高的电导率，能降低界面电阻，加快电子传输，提高电极导电性，优化电极析氧性能；同时由于NiFeB合金与NiFe LDH间存在的费米能级差异，促进内建电场的产生，加快电子定向迁移，助力提升析氧性能。
Resumen de: CN122543093A
本发明涉及电解水领域，公开了一种IrRu/TiON酸性析氧反应电催化剂的制备方法和应用。本发明IrRu/TiON酸性析氧反应电催化剂的制备方法包括：1）TiON多孔纳米带的制备：TiO2、NaOH和表面活性剂经水热反应制得钛酸钠纳米带；将钛酸钠纳米带分散于酸溶液中经离子交换反应得到氢钛酸纳米带；将氢钛酸纳米带置于氮气气氛中氮化，得到TiON多孔纳米带；2）IrRu/TiON酸性析氧反应电催化剂的制备：将Ir前驱体和Ru前驱体分散于多元醇中，加入TiON多孔纳米带，经还原反应，得到IrRu/TiON酸性析氧反应电催化剂。本发明通过优化制备方法制得了得到催化活性更好、稳定性更好的IrRu/TiON酸性析氧反应电催化剂，可将其应用于质子交换膜水电解中。
Resumen de: CN122543077A
0001 本发明涉及催化电极材料制备技术领域，具体是一种镍钽合金催化电极及其制备方法与应用，首先将镍源、钽源粉末与铝粉混合均匀，并在模具中压制成型，将成型后的坯体置于气氛炉或真空炉中进行烧结处理，烧结温度400~800℃，保温时间1~4 h，冷却后得到镍钽合金催化电极。本发明通过高温烧结工艺在镍骨架上形成Ni<3>Ta合金催化相，制备出具有三维多孔结构的镍钽合金催化电极，Ni<3>Ta合金催化相优化了氢原子吸附与转化动力学，提升了电极催化活性。本发明无需复杂设备或贵金属负载，适合规模化生产，制备的镍钽合金催化电极兼具优异的催化活性、出色的渗透性能和良好的大电流稳定性，有望攻克现有碱水电解技术中电极材料催化活性与耐久性难以平衡的技术瓶颈。
Resumen de: CN122540802A
0001 本发明公开了一种固体产氢颗粒及其在植物抗旱中的应用方法，属于农业抗旱技术领域；该固体产氢颗粒由产氢核芯和速溶控释包膜层组成，产氢核芯含供氢剂、促渗分散剂、粘结剂和产氢速率调节剂，包膜层含聚乙烯醇、聚乙二醇、海藻酸钠和叶面亲和改性剂；应用时将颗粒按比例溶于灌溉水中，搅拌即形成高浓度富氢水喷施液，立即喷施于植物叶片；本发明的颗粒专为叶面喷施设计，实现即溶即用，喷施液具有良好的叶面铺展和滞留性能，氢气叶片吸收率高，抗旱效果显著优于传统富氢水喷施和固体产氢材料埋土施用方式，操作简便，易于大面积推广。
Resumen de: CN122538098A
0001 本发明公开了一种基于In掺杂诱导各向异性晶格畸变的ZnO基压电催化材料及其制备方法与应用，涉及压电催化与功能氧化物材料技术领域。本发明通过适量In掺杂提高ZnO的压电催化性能。具体地，In<3+>取代Zn<2+>进入ZnO晶格形成固溶体，由于In<3+>离子半径大于Zn<2+>，引起晶格畸变；该畸变在晶体内部形成局域应变场，并在c轴方向表现出各向异性增强；在机械振动作用下，该结构更易产生较高的压电极化电势；增强的压电势促进电子‑空穴对分离并抑制复合；同时，In掺杂提供施主能级，提高材料导电性；二者协同作用显著提升材料压电催化效率。
Resumen de: CN122543105A
0001 本发明公开了一种水电解复合催化剂及其制备方法和应用，属于电解水制氢及电催化技术领域。本发明将磺酸基团的Grotthuss质子穿梭功能引入氧化钛负载金属铱纳米颗粒催化剂体系，从传质动力学、结构稳定性和本征活性三个维度同步提升了催化剂的综合性能，解决了传统氧化物载体催化剂在质子传导和局部酸性积累方面的技术瓶颈。本发明为低铱、高效、长寿命PEM电解水阳极催化剂的设计提供了新思路，对于推动质子交换膜电解水制氢技术的规模化应用、降低绿氢制备成本、助力实现碳中和目标具有重要的科学意义和工程应用价值。
Nº publicación: CN122543092A 11/08/2026
Solicitante:
中国科学技术大学苏州高等研究院中国科学技术大学
Resumen de: CN122543092A
0001 本发明公开了一种用于酸性析氧反应的钌基核壳催化剂及其制备方法与应用。所述制备方法包括：使包含六亚甲基四胺、聚氧丙烯聚氧乙烯共聚物、金属源、水和乙二醇的混合反应体系进行水热反应，制得金属有机物；其中，所述金属源包括钌盐及钴盐；以及，对所述金属有机物进行煅烧处理，制得用于酸性析氧反应的钌基核壳催化剂。本发明提供的催化剂能够维持高的催化活性和优异稳定性，能够实现酸性环境下的电催化析氧反应。
BOPI
Sede Electrónica
