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744
results.
Updated on
14/09/2026 [07:03:00]
Results 450 to 475 of 744
Absstract of: EP4782580A1
An operation method for a water electrolyzer, including an electrolyzer for electrolyzing water, a hydrogen separator to which hydrogen generated in the electrolyzer is to be led, an oxygen separator to which oxygen generated in the electrolyzer is to be led, and a vent line for discharging gas from the hydrogen separator or the oxygen separator and a vent valve disposed in the vent line, includes: a step of stopping electrolysis of water in the electrolyzer; a step of determining whether a first indicator indicating an increase amount of an oxygen concentration in gas in the hydrogen separator or of a hydrogen concentration in gas in the oxygen separator after stopping the electrolysis exceeds a first threshold; and opening, when the first indicator exceeds the first threshold, the vent valve to decrease a pressure of the hydrogen separator or the oxygen separator to a first specified value.
Absstract of: EP4782092A1
0001 An operation method for a dehumidification apparatus for dehumidifying hydrogen gas produced by a hydrogen production apparatus, the dehumidification apparatus including a dehumidifier for removing moisture contained in the hydrogen gas, a discharge line for discharging the hydrogen gas dehumidified by the dehumidifier from the dehumidifier, a dew point measurement line connected to the discharge line, a dew point meter disposed in the dew point measurement line, and an inlet valve and an outlet valve disposed on both sides of the dew point meter in the dew point measurement line, the operation method including a stopping step of stopping discharging of the hydrogen gas from the dehumidifier to the discharge line, and a maintaining step of maintaining a state in which a dew point meter installation part of the dew point measurement line including at least an installation position of the dew point meter is filled with a dry gas when the discharging of the hydrogen gas from the dehumidifier to the discharge line is stopped.
Absstract of: US2025236541A1
0000 Methods, systems and devices for removing iodide from an aqueous solution including submerging an iodophilic electrode in an aqueous solution containing iodide, applying a current to the electrode, and electrochemically oxidizing the iodide to iodine within the electrode. The electrode may include an iodophilic material and an electrically conductive material. It may also include a binder. The iodophilic material may be a starch, chitosan, carboxycellulose, cationic polymer, or an anion exchange membrane material, for example. After oxidizing the iodide to iodine within the electrode, the electrode may be submerged in a second solution and a current may be applied to reduce the iodine and release it from the electrode in the form of iodide into the second solution.
Absstract of: WO2025023918A1
The present disclosure relates to an electrochemical method that comprises the direct production of hydrogen from boron compound types by reduction-oxidation reactions, the simultaneous production of boron hydride compounds and the production of hydrogen by oxidation-reduction reactions of boron hydride compounds, which does not require any additional pH adjustment or purification procedure in a solution system containing low-cost boron compounds (boric acid, boron salts, etc.), and which provides direct production of high purity hydrogen in a single step and at room temperature in an environmentally friendly and low-cost manner.
Absstract of: EP4782579A1
0001 A separator according to the present disclosure comprises: a separator body having a first surface and a second surface; a first supply hole and a first discharge hole that are formed on one diagonal line of the separator body on the first surface and pass through the separator body; a plurality of first groove parts that are formed in a region between the first supply hole and the first discharge hole; a trapezoidal first diffusion flow path that spreads from the first supply hole to the first groove part and gradually expands in the width direction from the first supply hole toward the first groove part; a trapezoidal first convergence flow path that spreads from the first groove part to the first discharge part and gradually contracts in the width direction from the first groove part toward the first discharge hole; a first diffusion guide part that is provided in the first diffusion flow path and guides a fluid from the first supply hole to the first groove part; and a first convergence guide part that is provided in the first convergence flow path and guides the fluid from the first groove part to the first discharge hole.
Absstract of: WO2025110878A1
An electrolyzer for generating hydrogen from water comprising electrodes and an electrically non-conductive separator layer extending in a substantially vertical plane comprising macroscopic through holes, and wherein the electrodes themselves comprise an anode and a cathode, characterized in that the electrodes are each furnished at opposite faces of the separator, and that the electrodes each comprise a plurality fins and wherein each fin of the plurality of fins projects outwardly from the layer for restricting the upward movement of electrode generated bubbles to a bubble stream that is substantially parallel to the vertical plane.
Absstract of: EP4783270A1
A composite membrane includes: a porous substrate including a polyolefin microporous membrane; a silica material having a substrate containing silicon dioxide and having a sulfonic acid group on at least a surface of the substrate; and an ion exchange resin, in which a Gurley value is 1,000 sec/100 mL or more.
Absstract of: WO2025061814A1
The invention relates to a system and method for controlling the operation of the gas-liquid separators (GLSan, GLSca) of an electrolyser comprising a stack (10), and anode and cathode gas-liquid separators that separate the electrolyte and the gas along an alkaline solution level (lan, lca), wherein the dioxygen and dihydrogen gases flow from their respective chambers through a gas control valve (V
Absstract of: CN121843809A
Composite materials, methods of making composite materials, and methods of using composite materials are described herein. The composite material includes an incompatible polymer and/or other incompatible materials. The composite material can be used for various industrial applications. A composite material includes a first component including a first material having a fluid permeable portion and a second component including a second material that is incompatible with the first material; the first component and the second component are coupled at an interface, the interface comprising the second material contained in the fluid permeable portion of the first material, and the interface forming a third component separating at least a portion of the first component from the second component.
Absstract of: WO2025061540A1
The invention relates to an electrochemical hydrogen compressor (1) comprising at least one compressor unit (4), wherein an electrode arrangement (4c, 4d, 4e) which is disposed between two gas flow regions (4a, 4b) in the at least one compressor unit (4) comprises a gas-tight proton-permeable layer (4d) which is contacted by a gas-permeable cathode layer (4e) on one side of the layer, and which is contacted by a gas-permeable anode layer (4c) on the other side of the layer, wherein the at least one compressor unit (4) forms a compressor arrangement (3) which is arranged in a housing (2) around the interior of a hollow, preferably tubular, gas-permeable core element (5), wherein the interior of the core element (5) is fluidically connected to the radially innermost gas flow region (4b) of the compressor arrangement (3), and the interior of the housing (2) is fluidically connected to the radially outermost gas flow region (4b) of the compressor arrangement (3).
Absstract of: US2025092538A1
A bipolar plate for an electrochemical device may include, among other things, a conductive main body extending between first and second sides to define a cross-flow arrangement. The cross-flow arrangement may include first flow channels interspersed with first ribs along the first side, second flow channels interspersed with second ribs along the second side, and cross-over channels that may extend across the respective first ribs to interconnect the adjacent first flow channels. A method of forming a component for an electrochemical device is also disclosed.
Absstract of: WO2025012633A1
The invention provides a device for producing hydrogen gas and a process therefor. It also provides a system for generating electrical energy from hydrogen gas. More particularly, the invention provides a device for producing hydrogen comprising an ammonia cracker having one or more raw cracked gas outlets in fluid communication with a common raw cracked gas flow conduit, one or more gas separators in fluid communication with the ammonia cracker via the common raw cracked gas flow conduit, and in fluid communication with a common partially purified cracked gas flow conduit; one or more filter assemblies, each having a first container having one or more walls, one or more partially purified cracked gas inlets and one or more purified cracked gas outlets, wherein the one or more partially purified cracked gas inlets are in fluid communication with the one or more gas separators via the common partially purified cracked gas flow conduit, the first container containing a single mass of adsorbent comprising silica gel, wherein the one or more partially purified cracked gas inlets and one or more purified cracked gas outlets are arranged such that a partially purified cracked gas flows through the single mass of adsorbent in use.
Absstract of: KR20260117236A
본 발명에 따른 가변 주파수 초음파를 활용한 수소 기포 성장 촉진 장치 및 방법은, 수소 생산 공정 시 음향 가진기를 이용하여 전극 주위에 형성된 기포를 향해 초음파를 조사함으로써 기포의 팽창 및 수축을 유도하고, 용존 수소 가스의 유입량을 증대시켜 기포 성장을 촉진할 수 있다. 아울러, 수소 기포 반경의 모니터링을 기반으로 초음파 주파수를 가변 조정하여 전극 주위에 형성된 기포의 급격한 성장을 반복적으로 발생시켜 수소 기포 성장 촉진을 극대화하여 수소 생산량을 향상시킬 수 있다.
Absstract of: KR20260117553A
본 발명의 일 실시예는 질소 기능화와 산소 결함을 동시에 갖춘 Fe-Ni 이종 복합체로 니켈 폼; 상기 니켈 폼 표면 상에 위치하되, 철 및 니켈을 포함하는 시트 구조체; 및 상기 시트 구조체 상에 위치하되, 철을 포함하는 나노구체 클러스터를 내부에 포함하는 탄소 매트릭스;를 포함하는 것을 특징으로 하는 전기촉매 전극를 제공하는 것이다.
Absstract of: KR20260117267A
0001a 본 발명은 전기화학 에너지 디바이스용 스택 장치에 설치되어, 전해액이 전기분해되는 공간을 제공하고, 전해액이 전기 분해되어 발생한 수소 가스와 산소 가스 및 전기 분해되지 않은 전해액이 이동할 수 있는 이원적 이동 경로를 제공할 수 있어, 전기화학 에너지 디바이스용 스택 장치 내부에 흐르는 전해액과 수소 가스가 혼합되지 않도록 하는 효과를 제공하는 발명인 것을 특징으로 한다.
Absstract of: GB2703483A
A method and membrane reactor for production of pressurised hydrogen are disclosed, the method comprises providing a catalyst for conversion of ammonia to hydrogen and nitrogen; contacting a pressurised reaction stream comprising ammonia with the catalyst to convert at least a portion of the ammonia into hydrogen in a reaction zone; and obtaining a hydrogen product stream comprising pressurised hydrogen by selectively driving hydrogen from the reaction zone through a hydrogen-selective membrane under a pressure differential between a reaction-side pressure of the reaction stream and a product-side pressure of the hydrogen product stream; wherein the product-side pressure is at least 30 bara. The membrane reactor comprises a feed vessel comprising a catalyst bed comprising a catalyst for conversion of ammonia to hydrogen and nitrogen; a hydrogen collection vessel for collecting hydrogen at a pressure of at least 30 bara; and a hydrogen-selective membrane separating the feed vessel and the hydrogen collection vessel for selective removal of hydrogen. Figure 1
Absstract of: EP4782577A1
Provided is an ammonia production apparatus, including: a first electrolysis vessel in which at least part of a first electrolysis medium is stored; a first electrode arranged in the first electrolysis vessel; a second electrolysis vessel in which at least part of a second electrolysis medium is stored; a second electrode arranged in the second electrolysis vessel; a separator arranged between the first electrolysis vessel and the second electrolysis vessel; and a first separation unit configured to separate ammonia from the second electrolysis medium, wherein the first electrolysis vessel is configured so that a proton source in the first electrolysis medium is oxidized at the first electrode to generate a proton, wherein the ammonia production apparatus is configured to produce ammonia and hydrogen from nitrogen, a proton, and an electron in the presence of a nitrogen-activating catalyst in the second electrolysis medium, and wherein the ammonia production apparatus is configured to supply, to the first electrolysis medium, nitrogen and hydrogen remaining after ammonia is separated by the first separation unit.
Absstract of: WO2025205879A1
The purpose of the present invention is to realize a diaphragm for alkaline water electrolysis having good airtightness even when a sheet-like gasket is used, and enabling execution of water electrolysis at a low cell voltage. A use method according to the present invention is characterized by using, as a diaphragm for alkaline water electrolysis, a porous film which contains a polyethylene, and in which the content of the polyethylene in resin components is 50 mass% or more, and the tortuosity is 3.00 or less.
Absstract of: CN122466491A
本发明属于电解水制氢技术领域，涉及一种纯水电解制氢的自调节微环境膜电极及其制备方法。包括：阴离子交换膜；阳极催化层，位于阴离子交换膜的一侧；阴极催化层，位于阴离子交换膜的另一侧；阳极催化层为杂化离聚物与析氧催化剂相互混合形成的多孔复合层，杂化离聚物由聚合物基体与无机纳米填料复合而成，聚合物基体的侧链含有亲水基团，无机纳米填料的表面具有羟基或胺基；阳极催化层在厚度方向上具有梯度孔结构，梯度孔结构包括靠近阴离子交换膜的第一孔区和远离阴离子交换膜的第二孔区，第一孔区的亲水性高于第二孔区。本发明能够在纯水进料下自主维持界面微环境的碱性稳定与水气传输平衡，显著降低电解电压并延长运行寿命。
Absstract of: CN122469989A
0001 本发明公开了一种储能光伏耦合制氢电解槽集群功率响应方法，该方法根据电解槽集群的运行状态选择电解槽的运行功率比例区间；根据输入功率计算电解槽的目标功率比例，判断所述目标功率比例是否处于所述运行功率比例区间，并根据判断结果进行运行功率比例区间的自适应调整；计算电解槽的功率变化率；判断电解槽的分配功率是否属于当前电解槽的运行功率区间；当电解槽的分配功率不属于当前电解槽的运行功率区间时，限制所述分配功率，使其属于当前电解槽的运行功率区间；当电解槽的分配功率属于当前电解槽的运行功率区间时，判断电解槽的功率变化率是否符合预设要求；当电解槽的功率变化率不符合预设要求时，限制所述功率变化率，使其符合预设要求；当电解槽的功率变化率符合预设要求时，设置电解槽的设定功率。
Absstract of: CN122466420A
0001 本发明属于非贵金属电催化析氢材料领域，尤其涉及的是一种用于电解水制氢的镍钨钼合金薄膜及其制备方法与应用。该方法通过磁控溅射仪器让钼靶与镍钨靶（原子比例为1：1）在真空状态下共溅射，可获得镍钨钼合金薄膜，通过调节靶材的溅射功率，可精确调控镍钨钼合金组分获得仅包含晶态结构、仅包含非晶态结构或者同时包含晶态结构和非晶态结构的合金薄膜。本发明所制备的镍钨钼合金薄膜表现出了优异的电催化析氢性能；本发明通过往镍钨合金中添加钼得到的合金的催化析氢性能显著优于镍钨二元合金及添加铌、钒、钽得到的合金，在电解水制氢领域具有广阔的应用潜能和发展空间。
Absstract of: CN122466507A
本发明提供一种功能化离子液体修饰的NiFe‑LDH催化剂的制备方法及其应用，涉及电催化材料领域，首先采用共沉淀法制备NiFe‑LDH前驱体：以可溶性镍盐和可溶性铁盐为原料，利用碱性沉淀剂，进行共沉淀反应得悬浮液，经固液分离、洗涤、干燥，得到NiFe‑LDH前驱体；然后采用溶剂蒸发法在前驱体表面修饰功能化离子液体，得到复合催化剂；本发明制备方法简单、条件温和，在碱性电解液中表现出尤为突出的OER催化性能。
Absstract of: CN122466499A
0001 本发明提供了一种高活性堆叠片状含硫钴基析氧催化剂及其制备方法与应用。该高活性堆叠片状含硫钴基析氧催化剂的制备方法，包括步骤如下：（1）将醋酸钴水溶液加入四丁基氢氧化铵中，进行加热搅拌反应；之后经离心、洗涤、干燥，得到前驱体；（2）将步骤（1）所得前驱体和硫脲加入水中，超声分散均匀，得到混合液，将所得混合液进行水热反应；之后经离心、洗涤、干燥，得到高活性堆叠片状含硫钴基析氧催化剂。相较于传统钴基及普通硫化催化剂，本发明样品过电位更低、催化活性更高、耐用性更好，且制备条件温和、工艺简单、原料廉价，适配电解水析氧规模化应用。
Absstract of: CN122466498A
本发明公开了一种基于过渡金属掺杂策略的酸性OER催化剂及其制备方法，属于电解水制氢技术领域。催化剂以Pt纳米颗粒作为载体，载体上负载M‑Ir合金纳米颗粒，M为过渡金属Fe、Co和Ni中的至少一种。将Pt纳米颗粒分散于有机溶剂中，加入IrCl3和所述过渡金属M的前驱体，之后加热反应，结束后搅拌、冷却，对所得产物洗涤后干燥，即得基于过渡金属掺杂策略的酸性OER催化剂。本发明的催化剂将贵金属Ir负载量降低了35%，但催化活性超过了商业IrO2，其在酸性OER中表现出了低过电势、高电流密度和长循环寿命。本发明工艺简单，流程清晰，适于规模化推广应用。
Nº publicación: CN122465320A 28/07/2026
Applicant:
浙江工业大学
Absstract of: CN122465320A
本发明公开了一种含Tröger’s Base结构的聚芳基哌啶阴离子交换膜及其制备方法和应用。阴离子交换膜的结构特征在于聚合物主链中引入了特定摩尔分数（X=5%~15%）的Tröger’s Base刚性结构单元，其制备方法包括（1）以2‑氨基芴和二甲氧基甲烷为原料合成Tröger’s Base结构单体；（2）将该单体与芳基单体及N‑甲基‑4‑哌啶酮共聚，得到含Tröger’s Base结构的聚芳基哌啶聚合物；（3）对聚合物进行季铵化改性；（4）通过溶液浇铸成膜并碱化处理，最终制得目标阴离子交换膜。本发明通过引入Tröger’s Base结构，有效调节了膜的微相分离形态，成功缓解了阴离子交换膜中离子电导率、尺寸稳定性与耐碱性之间难以兼顾的矛盾。
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