Absstract of: US20260209965A1
Using optimal indirect thermal coupling between a thermal power plant and a hydrogen production unit by high-temperature electrolysis via a withdrawal branch connection made in a fluid branch of the power plant's thermodynamic conversion cycle to install, on the one hand, a thermal storage tank to provide the heat necessary to preheat the steam intended for the cathodes of the HTE unit and, on the other hand, a pneumatic and thermal storage tank to supply pressurized hot air to the anodes.
Absstract of: US20260209038A1
Process for production of hydrogen from ammonia, including ammonia cracking wherein ammonia is decomposed into hydrogen and nitrogen, wherein the ammonia cracking is performed in a sequence of cracking steps (13, 36, 17, 20) and a finally cracked stream (21) is obtained after a last cracking step (20), wherein the last ammonia cracking step (20) is performed adiabatically and/or the finally cracked stream (21) is quenched by direct mixing with water or steam after the last cracking step.
Absstract of: WO2025006628A2
The present disclosure is directed to a processing solution composition comprising a metal salt, an acid, a solvent, and a non-metal reductant. The present disclosure is also directed to a method of impregnating a porous material by covering or coating the porous material with a processing solution comprising a metal salt, an acid, a solvent, and a non-metal reductant.
Absstract of: CN122249590A
An electrode for an electrochemical cell designed for electrolysis is a support formed with an open-cell metal structure and provided with a coating that increases the specific surface area on an outward facing surface of a separator facing the electrochemical cell, or with a coating that increases the specific surface area and has improved catalytic activity. The coating is formed from a metal, particles of which are bonded to each other via a sintered bridge and/or an organic binder and to a surface of the perforated metal structure. The coating layer is formed with a plurality of regions between which an uncoated joint is arranged.
Absstract of: EP4778615A1
0001 A hydrogen drying system for hydrogen production using renewable energy is provided. Two adsorbers (1, 2) are arranged in parallel, the two adsorbers (1, 2) alternately perform an adsorption process and a desorption process, the adsorption flow of each of the adsorbers (1, 2) changes along with the fluctuation of input renewable energy, and an operating state of each of the adsorbers (1, 2) is switched by means of accumulating the hydrogen flow treated by each of the adsorbers (1, 2) in a single adsorption process; a pre-adsorber (3) is connected in series to one of the adsorbers (1, 2) and is used for assisting in the desorption process; and in the desorption process, hydrogen in the pre-adsorber (3) or the adsorbers (1, 2) is circulated by means of a hydrogen self-circulation apparatus (4), and the desorption process is independent of the adsorption process. Since the adsorption process and the desorption process are independent of each other, after a raw gas enters the adsorbers (1, 2) and absorption is completed, all the raw gas is output; and in the desorption process, hydrogen in the pre-adsorber (3) or the adsorbers (1, 2) is circulated through the hydrogen self-circulation apparatus (4) to achieve hydrogen regeneration, so that the problem of incomplete desorption due to desorption interruption caused by the flow fluctuation of the raw hydrogen is solved, intermittent and fluctuating renewable energy can be matched to perform hydrogen production, and an operat
Absstract of: EP4779059A1
The present disclosure relates to an ion exchange membrane and an electrochemical system comprising the ion exchange membrane. The ion exchange membrane according to the present disclosure can maintain high ion conductivity and durability, and has high gas barrier properties, thereby realizing an electrochemical system with excellent efficiency.
Absstract of: EP4778962A1
According to one embodiment of the present invention, an anion exchange membrane comprising a carbazole-based polymer but having mitigated cracking characteristics of the polymer, and a method for manufacturing the same can be provided.
Absstract of: EP4779048A1
0001 A stainless steel material for an alkaline water electrolysis device, including, on a mass basis, C: 0.100% or less, Si: 1.00% or less, Mn: 0.30 to 3.00%, Ni: 10.00 to 35.00%, P: 0.0300% or less, S: 0.0030% or less, Cr: 16.0 to 28.0%, N: 0.01 to 0.25%, Cu: 0.01 to 1.00%, Mo: 0.10 to 8.00%, and Al: 0.005 to 0.100%, the balance being Fe and impurities.
Absstract of: EP4778883A1
Apparatus for producing hydrogen from a cracking reaction of ammonia, said apparatus comprising:- a cracker unit (1) configured for producing a cracked gas from ammonia,- an absorber (2) configured for removing unconverted ammonia from said cracked gas using an absorbent fluid, thereby producing an ammonia depleted gas containing hydrogen, nitrogen and vaporized absorbent fluid,- an adsorption unit (3) comprising at least one adsorber vessel (4), said adsorber vessel or each adsorber vessel comprising a feed end arranged for receiving said ammonia depleted gas, a product end downstream said feed end for discharging a purified hydrogen product from said adsorber vessel, and an adsorbent bed arranged between said feed end and said product end, the adsorbent bed comprising an upstream layer (5) of an adsorbent selectively adsorbent for the vaporized absorbent fluid contained in said ammonia depleted gas and a downstream layer (6) of an adsorbent selectively adsorbent for nitrogen.
Absstract of: GB2703251A
A process for the manufacture of an anode layer for a polymer electrolyte membrane (PEM) electrolyser (PEMWE) is described together with a CCM (catalyst coated membrane), an electrolyser and an ink for an anode layer. The process comprising the steps of: (i) forming a catalyst ink comprising an iridium- and / or ruthenium-containing OER catalyst, an ionomer, a solvent, and a cellulose compound; (ii) applying the catalyst ink to a substrate to form the anode layer; and (iii) drying the anode layer. The cellulose compound may comprise hydroxyalkylcelluose. The catalyst loading may be less than or equal to 1.2mg/cm2. None
Absstract of: GB2633564A
A method of changing the electrolytic conversion rate within at least one electrolyser cell 10 stack 12 of an electrolyser system (figure 1, 20) is described. The stack 12 has a fluid inlet 114, fluid outlet 116 and a power control system 108. The power control system 108 is used to change the voltage, via a voltage interface 100 across the electrolyser cell stack 12, allowing the fluid outlet temperature 104 to change in response to the voltage change, setting an inlet temperature 106 to substantially match the new outlet temperature, and then allowing the voltage to revert to a substantially thermoneutral value. The electrolyser cell stack 12 is thus operating at a changed stack temperature and changed electrolytic conversion rate. A processor 110 and memory circuit 112 can also be provided for storing information such as preset current, voltage or power delivery changes. The current method may lead to a galvanostatic thermoneutral (GTN) strategy for electrolyzer stack control.
Absstract of: EP4524100A1
0001 Process comprising the production of a hydrogen-containing synthesis gas by the conversion of a hydrocarbon feedstock, said process comprising : - providing a fuel stream of ammonia comprising an ammonia content, - decomposing at least a portion of said ammonia content into hydrogen and nitrogen, thereby obtaining an enhanced fuel, said portion of the ammonia content undergoing said decomposition being greater than 50% of the ammonia content of said fuel stream of ammonia, - combustion of said enhanced fuel in a fired equipment to provide a heat input to the process.
Absstract of: KR20260114100A
전이금속 전구체 및 염화물을 포함하는 전해질을 포함하는 전해액에 산화전극을 침지시켜 전기분해하는 단계를 포함하는 전이금속 수산화물의 제조방법으로서, 상기 전이금속 수산화물은 상기 전이금속 전구체가 상기 염화물 유래 염소 이온에 의해 산화된 것인, 제조방법을 제공한다. 특히, 상기 제조방법은 별도의 산화제를 사용하지 않아 공정이 간단함과 동시에 연속적인 전이금속 산화물 제조 및 수소생성 시스템을 제공할 수 있다.
Absstract of: KR20260114165A
본 발명은, 양성자 교환막 수전해의 촉매로 사용되는 이리듐 나노 덴드라이트 및 이의 제조방법에 관한 것으로, 본 발명에 따른 이리듐 나노 덴드라이트를 이용하여 우수한 산소 발생 반응 촉매 활성, 내구성 및 고전류 밀도 조건에서 향상된 물질전달 특성 및 감소된 물질전달 과전압을 갖는 양성자 교환막 수전해용 촉매를 제공할 수 있다.
Absstract of: KR20260114118A
0001a 2단의 이오노머 조성 구배를 갖는 일체형 전극-다공성 확산체 및 이를 제조하는 방법으로서, 구체적으로, PTL(porous transport layer) 상에 이오노머 함량이 낮은 전극층이 형성되고, 상기 이오노머 함량이 낮은 전극층 상에 이오노머 함량이 높은 전극층이 형성된 것을 특징으로 하는, 2단의 이오노머 조성 구배를 갖는 일체형 전극-다공성 확산체, 및 이를 제조하는 방법에 관한 것이다. 본 발명에 따르면, 전극층 하단에는 낮은 함량의 이오노머를 갖는 전극층을 스프레이 코팅하고, 그 위에 얇게 높은 함량의 이오노머를 갖는 전극층을 스프레이 코팅함으로써, 우수한 계면 접합력과 수전해 성능을 동시에 갖는 것을 장점을 한다. 이에 따라, 본 발명의 2단의 이오노머 조성 구배를 갖는 일체형 전극-다공성 확산체를 포함하는 수전해 애노드 전극은 더욱 향상된 내구성과 수전해 성능을 가질 수 있다.
Absstract of: EP4779728A1
The present disclosure relates to a hollow fiber membrane for a fuel cell membrane humidifier, including a porous polymer and a phenol-based antioxidant dispersed within the porous polymer, a method of preparing the same, and a fuel cell membrane humidifier including the hollow fiber membrane, and thus there is an effect of preventing deterioration and decomposition of the hollow fiber membrane.
Absstract of: US12686931B1
0000 The present invention relates to modular packages of individual electrolyzer stack units arranged to overcome prior art limitations related to power supply costs, as-manufactured stack unit performance variation, operating stack unit performance variation, and operational reliability. The electrolyzer stack module comprises an even number of individual stack units wired in series-parallel and arranged to minimize variation between branches of series-connected stack pairs.
Absstract of: CN122428309A
0001 本申请公开了一种基于镍普鲁士蓝氧化还原电对电极的酸性分步电解水制氢装置及方法,属于电解水技术领域,该装置包括电解槽、酸性电解液、以及置于电解槽内的析氢催化电极、析氧催化电极和镍普鲁士蓝衍生物电极,方法包括产氧步骤和产氢步骤:产氧时,析氧催化电极作为阳极氧化水生成氧气,镍普鲁士蓝衍生物电极作为阴极被还原;产氢时,还原后的镍普鲁士蓝衍生物电极作为阳极被氧化,析氢催化电极作为阴极还原氢离子生成氢气,本发明利用镍普鲁士蓝衍生物作为氧化还原中间体,实现了酸性条件下水电解析氢与析氧过程在时间和空间上的解耦,无需使用质子交换膜,有效避免了氢氧混合,具有成本低、环境友好、操作灵活等优点。
Absstract of: WO2025142261A1
In order to provide a water electrolysis device and an operation controlling method for the water electrolysis device which, when the operation is stopped, are capable of reducing energy consumption and suppressing deterioration of an electrolyte membrane due to hydrogen peroxide generated in a cathode-side hydrogen flow passage when the operation is stopped, this operation controlling method for a water electrolysis device having at least one water electrolysis cell which is divided into an anode-side oxygen flow passage 5 and a cathode-side hydrogen flow passage 6 by an electrolyte membrane, electrolyzes pure water supplied to the oxygen flow passage 5, and discharges hydrogen from the hydrogen flow passage 6 comprises: supplying pure water to the oxygen flow passage 5 during the operation of the water electrolysis device; when the operation of the water electrolysis device is stopped, stopping the supply of pure water to the oxygen flow passage 5, and supplying pure water to the hydrogen flow passage 6 for a prescribed period of time and discharging the same to the outside; and then stopping the supply of pure water to the hydrogen flow passage 6.
Absstract of: WO2025135740A1
The present invention relates to a device for producing hydrogen from ammonia for a ship. According to the present invention, high-pressure hydrogen can be produced by using liquefied ammonia for a ship, and hydrogen can be economically produced by utilizing unconverted ammonia discharged from a decomposition reactor and off-gas discharged from a pressure swing adsorption device as a heat source for ammonia decomposition through a heat exchange network of the ship.
Absstract of: WO2025131626A1
The invention relates to an electrolysis assembly (10) comprising a stack assembly (16). The stack assembly (16) is equipped with precisely one reactant gas manifold structure (66) in order to provide reactant gas to the electrolysis cells (18) and precisely one product gas manifold structure (68) in order to discharge product gas from the electrolysis cells (18). The stack assembly (16) has a reactant gas opening for introducing reactant gas into the reactant gas manifold structure (66) and a product gas opening for discharging product gas out of the product gas manifold structure (68). The reactant gas manifold structure (66) and the product gas manifold structure (68) are formed within the stack assembly (16), in each case by means of manifold openings introduced into the interconnectors, wherein between the membrane electrode assembly and the interconnector of at least some of the electrolysis cells is a reactant gas line structure designed to conduct reactant gas out of the reactant gas manifold structure along the hydrogen side of the membrane electrode assemblies and to the product gas manifold structure, and at least some of the membrane electrode assemblies have an oxygen-permeable structure on the oxygen side, said oxygen-permeable structure being positioned and designed such that oxygen released on the oxygen side of the membrane electrode assembly can be discharged into the interior of the housing (12).
Absstract of: CN122424818A
0001 本发明涉及一种硼氢化钠水解制氢的催化剂,尤其是一种CoB/NF硼氢化钠水解催化剂、制备方法及应用。该制备方法包括以下步骤:使用六水合氯化钴与硼氢化钠反应制取CoB粉末催化剂;将所述CoB粉末催化剂与粘结剂PVDF混合,并添加NMP制成浆料;将所述浆料涂覆在泡沫镍支撑基底上,然后通过退火处理以去除NMP溶剂,得到CoB/NF复合材料。该制备方法操作简单,易于规模化生产,所制备的催化剂具有优异的稳定的,催化活性高,制备成本较低,在硼氢化钠快速水解制氢领域具有良好的应用前景。
Absstract of: CN122428314A
本发明公开了一种电解制氢用铂铜锡固溶体合金阴极催化剂及其制备方法。所述制备方法包括:配置含铂源、铜源、锡源的混合水溶液,加入碳载体并超声分散均匀;在冰水浴条件下,逐滴滴加强还原剂水溶液,通过液相共还原反应生成铂铜锡固溶体合金颗粒;经洗涤、烘干即得所述催化剂。本发明通过液相共还原法将铂、铜、锡以特定原子比例形成固溶体合金,利用铜的氢溢流效应与锡对氢氧根脱附的协同促进作用,构筑梯度电子结构活性中心。所得催化剂在100 mV过电位下的单位铂质量活性达到225.24 mA/mgPt,较商业化40%Pt/C提升约62.5%,在碱性电解水环境中连续运行600小时性能衰减低于5%,在实质性降低铂绝对用量的同时实现了超高活性与工业级耐久性。
Absstract of: CN122428333A
本发明属于电解水技术领域,特别涉及一种多维分级异质结构双功能催化剂及其制备方法。本发明公开了一种多维分级异质结构双功能催化剂的制备方法,包括以下步骤:将钴源、镍源、硫源和有机配体共同溶解于混合溶剂中,得混合液;将混合液与导电基底共同转移至反应釜中,进行溶剂热反应;于惰性气体保护下,将所得的Ni3S2@MOF‑74前体与磷源于250±30℃进行磷化热处理1.5~2.5h;最终获得作为多维分级异质结构双功能催化剂的Ni3S2‑Co(PO3)2@MOF‑74。该催化剂在1.0 M KOH电解液中表现出优异HER‑OER催化活性和电化学稳定性。
Nº publicación: CN122428299A 21/07/2026
Applicant:
中国华能集团清洁能源技术研究院有限公司
Absstract of: CN122428299A
0001 本发明公开了一种亲水亲气交替条纹电极及其制备方法,属于电化学能源转换器件技术领域;所述方法将亲水性物质前驱体、亲气性物质前驱体以及可溶性过渡金属盐混合,加入溶剂和分散剂,形成均匀的复合浆料;将所述复合浆料涂覆在导电基底表面,随后进行预干燥,得到覆有固态复合前驱体膜的电极;采用飞秒激光系统,对所述覆有固态复合前驱体膜的电极进行阵列式聚焦扫描,扫描形成条纹区域,完成激光选择性条纹化处理;对激光选择性条纹化处理后的电极进行水浸处理,得到亲水亲气交替条纹电极。本发明通过超快激光加工技术在电极表面创造“功能条纹”,实现反应区与脱附区的空间解耦与协同。