Alerta

HYDROGEN-ELECTRICITY COUPLING CONTROL SYSTEM AND METHOD FOR OFF-GRID GREEN-ELECTRICITY-BASED HYDROGEN PRODUCTION

Absstract of: WO2026199954A1

The present invention belongs to the technical field of green-electricity-based hydrogen production. Disclosed are a hydrogen-electricity coupling control system and method for off-grid green-electricity-based hydrogen production. The method comprises: executing MPPT control on each photovoltaic module, so as to maximize an output power; distributing output powers to power-type electrolyzers, and adjusting the duty cycles of boost DC/DC converters to stabilize a low-voltage-side current at a set value, such that the power-type electrolyzers always operate at rated power points; and distributing the output powers to regulation-type electrolyzers, and adjusting the output voltages of the boost DC/DC converters to stabilize a high-voltage-side voltage at a target value, such that the regulation-type electrolyzers absorb a fluctuating portion of a photovoltaic power. The present invention can effectively improve the efficiency of a green-electricity-based hydrogen production system, and can realize stable and sustainable hydrogen production without relying on energy storage.

HYDROGEN-PRODUCTION POWER SUPPLY SYSTEM AND CONTROL METHOD THEREFOR

Absstract of: WO2026200097A1

Disclosed in the present application are a hydrogen-production power supply system and a control method therefor. The system comprises a transformer, a main power branch, an auxiliary power branch, at least one set of energy storage branches, and a busbar, wherein a primary winding of the transformer is coupled to an alternating-current power grid, and a secondary winding of the transformer is coupled to an input terminal of the main power branch; an output terminal of the main power branch is coupled to an off-grid hydrogen production device; the auxiliary power branch is coupled between the secondary winding and the busbar; the energy storage branches are all coupled to the busbar; the main power branch comprises at least one uncontrolled rectifier circuit and at least one chopper circuit, the uncontrolled rectifier circuit being used for converting into direct currents alternating currents that are output by the transformer, thereby saving costs, and the chopper circuits being used for adjusting the voltage of the direct currents to a voltage required by a load of a chopper branch; the auxiliary power branch is used for outputting power to the busbar and performing power exchange with the alternating-current power grid, thereby improving the capability of responding to the alternating-current power grid; and the energy storage branches are used for pre-storing and releasing electric energy by means of the busbar, thereby improving the system stability.

LOW-TEMPERATURE PLASMA MODULE HYDROGEN PRODUCTION SYSTEM USING SEAWATER

Absstract of: WO2026205758A1

The present invention relates to a hydrogen production system capable of producing hydrogen in an environmentally friendly and economical manner by means of a low-temperature plasma module by using seawater. The present invention is characterized by a low-temperature plasma module hydrogen production system comprising: a water electrolysis unit into which seawater flows, and which electrolyzes the seawater to produce hydrogen; an atomization unit to which an electrolyte remaining in the water electrolysis unit after the electrolysis is transferred through an electrolyte discharge port, and which atomizes the electrolyte into a mist; an aerosol electrolysis unit to which water particles atomized by the atomization unit are transferred, and which is composed of a low-temperature plasma module and makes it possible to re-separate oxygen ions and hydrogen ions in atomized water molecules to produce hydrogen.

GAS DIFFUSION LAYER FOR AN ELECTROLYSIS CELL

Absstract of: AU2025255910A1

The invention relates to a gas diffusion layer (5) for an electrolysis cell (1), comprising a fine layer (51) and a coarse layer (52). The fine layer (51) comprises a fine structure with pores of a first pore size, and the coarse layer (52) comprises a coarse structure with pores of a second pore size. The coarse layer (52) comprises a plurality of spiral elements (520), the spiral elements (520) are interwoven, and at least one spiral element (520) is freely movable, in particular freely rotatable, The gas diffusion layer further comprises at least one intermediate layer (53). The at least one intermediate layer (53) comprises an intermediate structure with pores of an intermediate pore size, and the intermediate layer (53) is provided between the fine layer (51) and the coarse layer (52), said intermediate pore size being larger than that of the fine layer (51) and smaller than that of the coarse layer (52).

PROCESS, METHOD, CATALYST, AND USE

Absstract of: WO2026202480A1

The present invention relates to a process for producing hydrogen from the catalytic cracking of ammonia using a catalyst. The catalyst comprises nickel supported on a metal element modified alumina support, the nickel having a particle size of from 0.5 nm to 10 nm, the metal element of the metal element modified alumina support being selected from the group comprising the rare-earth metals, titanium (Ti), zirconium (Zr), molybdenum (Mo), and zinc (Zn).

HYDROGEN AND OXYGEN GENERATION USING DETONATION WAVES

Absstract of: EP4813908A1

0001 A system and method are disclosed for the production of green hydrogen and oxygen from water using thermal decomposition driven by pulsed or continuous-spin detonation waves. In some embodiments, fresh water is converted into low-temperature steam and superheated beyond 3500°C using multi-stage shock-resonant compression within cooled gas-dynamic resonators, leading to dissociation of water into hydrogen and oxygen. In other embodiments, salt water is first desalinated by detonation-induced evaporation and fragmentation, producing steam and sea salt, after which the steam is thermally decomposed. A centrifugal vortex reactor is used to separate the resulting hydrogen and oxygen gases based on molecular weight. The system is capable of operating in a self-sustaining mode by recycling part of the generated gases for continued detonation. It is suitable for terrestrial and space-based applications, providing scalable, carbon-neutral hydrogen and oxygen production from fresh or salt water without the need for external electricity or fossil fuels.

ELECTROLYSIS DEVICE, METHOD FOR CONTROLLING ELECTROLYSIS DEVICE, AND CONTROL PROGRAM FOR ELECTROLYSIS DEVICE

Absstract of: EP4814168A1

Provided are an electrolysis device, an electrolysis device control method, and an electrolysis device control program that reduce circulation current flowing through a grounding wire. An electrolysis device (1) includes: a plurality of rectifiers (20); and an electrolyzer (100) having a plurality of cell stacks (10) having common positive electrodes, the positive electrode of each of the cell stacks (10) is connected to the positive electrode of each of the plurality of rectifiers (20) installed in parallel, the negative electrode of each of the cell stacks (10) is connected to the negative electrode of each of the rectifiers (20), and electrolysis device further includes a balance cable (80) connecting a negative electrode of at least one of the cell stacks (10) and a negative electrode of at least another one of the cell stacks (10) to each other.

CATALYST FOR AMMONIA DECOMPOSITION REACTION WITH IMPROVED CATALYST STABILITY AND HYDROGEN PRODUCTION METHOD USING SAME

Absstract of: EP4813514A1

The present invention relates to a catalyst for an ammonia decomposition reaction and a hydrogen production method using same. More specifically, the present invention relates to: a catalyst for an ammonia decomposition reaction which, by containing cesium and cerium in a cobalt-molybdenum composite nitride, exhibits excellent catalytic activity in the ammonia decomposition reaction and thus enables an improved ammonia conversion rate, and which shows minimal degradation in activity even after high-temperature and long-duration reactions, offering excellent long-term stability; and a hydrogen production method using the catalyst.

A DEVICE FOR PRODUCTION OF GREEN HYDROGEN

Absstract of: WO2025109618A1

A Green HYDROGEN production apparatus is provided having a modular reactor vessel. The reaction is managed to safely drive the reaction to completion to maximize HYDROGEN production. A HYDROGEN outlet provides for the collection of the generated HYDROGEN from the reactor vessel (e.g. 1)

WATER ELECTROLYSER STACK HAVING A RANGE OF HALF-CELLS FRAMES

Absstract of: WO2025109126A1

Water electrolyser stack having a range of half-cell frames which each circumscribes one of an anolytic or a catholytic process chamber and which half-cell frames are arranged and aligned in an array between a proximal electric current injector/collector plate and a distal electric current injector/collector plate, and where each half-cell frame comprises an embedded furrow flow channel adapted to serve an electrolyte flow from a stack internal inflow manifold channel to a corresponding anolytic or catholytic reaction chamber and an embedded furrow flow channel adapted to serve an electrolyte and gas outflow from a corresponding anolytic or catholytic reaction chamber to a corresponding stack internal manifold channel wherein each of the embedded furrow flow channels comprise at least one fluid and/or gas trap section.

SODIUM FORMATE HYDROGEN EXTRACTION SYSTEM OPERATION AND PRODUCTION OF HYDROGEN AND METHANOL

Absstract of: US20250167271A1

0000 An integrated energy system comprising a power plant including at least one nuclear reactor and electrical power generation system, the at least one nuclear reactor being configured to generate steam, and the electrical power generation system being configured to generate electricity, a desalination system configured to receive at least a portion of the electricity and steam to produce brine, an electrolysis process configured to process the brine into Sodium Hydroxide (NaOH), a Sodium Formate (HCOONa) production process configured to receive the Sodium Hydroxide (NaOH) to produce Sodium Formate (HCOONa), a Hydrogen (H<2>) extraction reactor configured to receive the Sodium Formate (HCOONa) and produce Hydrogen (H<2>), and a fuel cell configured to receive the Hydrogen (H<2>).

ELECTROLYTIC CELL COMPRISING AN ELECTRODE UNIT PRODUCED BY AUTOGENOUS WELDING, ELECTROLYSER COMPRISING SUCH AN ELECTROLYTIC CELL, AND CORRESPONDING MANUFACTURING METHOD

Absstract of: WO2025109109A1

The present application relates to an electrolytic cell comprising at least a first and a second bipolar plate (14) and an electrode unit (1216a, 1216b) and a membrane (11). The electrode unit comprises a planar electrode (12a, 12b) and an interlayer (16a, 16b) which is elastically deformable in a direction normal to the planar electrode (12a, 12b) and which has a thickness greater than a thickness of the electrode (12a, 12b) at least in a central region of the interlayer (16a, 16b), the interlayer (16a, 16b) comprising periphery regions crushed in said direction and connected to a periphery of the electrode (12a, 12b) by a weld created by autogenous welding. The present application also relates to an electrolyser stack comprising such a cell and to a method for manufacturing such a stack.

INCLINED GAS COOLER AND APPLICATION TO A HYDROGEN/OXYGEN PRODUCTION SYSTEM

Absstract of: EP4814164A1

Piece of equipment (EQ1, EQ2) configured to treat a biphasic mixture output by a stack of electrolytic cells and comprising: a separator (SEP) to separate the biphasic mixture into a gaseous fraction (G) and a liquid electrolyte fraction (LE); a cooler (COOL) configured to cool down the gaseous fraction (G) and to condense water vapor of the gaseous fraction into liquid water, the cooler having a high extremity (BON_HE) and a low extremity (BON_LE) situated lower than the high extremity (BON_HE); and a return line (BCK') configured to transport the liquid water condensed in the cooler (COOL) back to the separator (SEP) and comprising a device (SY) configured to prevent fluid from flowing from the separator (SEP) to the cooler (COOL), wherein an output (OUT.H_SEP) of the separator (SEP) is fluidically connected to the low extremity (BON_LE) of the cooler (COOL).

MEMBRANE-ELECTRODE ASSEMBLY FOR WATER ELECTROLYSIS CELL, AND WATER ELECTROLYSIS CELL COMPRISING SAME

Absstract of: EP4814167A1

0001 The present disclosure relates to a membrane-electrode assembly for a water electrolysis cell and a water electrolysis cell comprising same, wherein the membrane-electrode assembly for a water electrolysis cell further comprises a coating layer positioned on one surface of a catalyst layer to prevent an ion conductor exposed on the surface of the catalyst layer from contacting a microporous layer, and a polymer electrolyte membrane exposed through an opening in which the catalyst layer does not exist due to low loading from contacting the microporous layer, thereby reducing a band bending phenomenon, so that a pinch-off effect can be reduced and performance can be improved. In addition, furthermore, the coating layer serves to connect catalyst layers, which are not in contact with the microporous layer, to each other, thereby enabling smooth electron movement.

ELECTROLYSIS DEVICE FOR PRODUCING A FUEL

Absstract of: WO2025179327A1

The present invention relates to an electrolysis device (100) for producing a fuel (B) in electrolysis cells of at least one electrolysis stack (110), comprising an air supply portion (122) for supplying feed air (ZL) to an air side (120) of the electrolysis stack (110) and an air discharge portion (124) for discharging exhaust air (AL) from the air side (120) of the electrolysis stack (110), and also comprising a water supply portion (132) for supplying water (W) to a fuel side (130) of the electrolysis stack (110) and a fuel discharge portion (134) for discharging fuel mixture (BG), which comprises fuel (B) and water (W), from the fuel side (130) of the electrolysis stack (110), wherein: the fuel discharge portion (134) has a condenser device (140) for cooling the fuel mixture (BG) to below a condensation temperature of water (W), for condensing the water (W) and separating the water from the fuel (B); in the fuel discharge portion (134), upstream of the condenser device (140), a fuel-mixture/feed-air heat exchanger (150) is arranged in heat-transferring contact with the air supply portion (122) for transferring heat from the fuel mixture (BG) to the feed air (ZL).

FLOW THROUGH ELECTRODE ASSEMBLY AND STACK

Absstract of: EP4814166A2

0001 The present disclosure relates to an electrode assembly for a bipolar electrolyser stack, preferably for an electrolyser stack, comprising: a first flow-through electrode comprising a first surface that is permeable to gases produced by the decomposition of a process solution, preferably water, and an opposite second surface; a second flow-through electrode comprising a first surface that is permeable to gases produced by the decomposition of a process solution, preferably water, and an opposite second surface; and a non-permeable divider arranged between the second surfaces of the first and second flow-through electrodes and adapted to separate the first and second flow-through electrodes from each other.

ELECTRODE UNIT PRODUCED BY RESISTANCE WELDING, ELECTROLYTIC CELL AND ELECTROLYSER COMPRISING SAME, AND CORRESPONDING MANUFACTURING METHOD

Absstract of: WO2025109108A1

The present application relates to an electrode unit (1216a, 1216b) for an electrolytic cell, comprising a planar electrode (12a, 12b) and an interlayer (16a, 16b) which is elastically deformable in a direction normal to the planar electrode (12a, 12b) and which has a thickness greater than a thickness of the electrode (12a, 12b) at least in a central region of the interlayer (16a, 16b), the interlayer (16a, 16b) comprising periphery regions crushed in said direction and connected to a periphery of the electrode (12a, 12b) by a weld made by resistance autogenous welding. An electrolytic cell and an electrolyser stack comprising such electrode units (1216a, 1216b) and a method for manufacturing such a stack are also described.

一种金团簇分散于铁钴镍硫化物表面的纳米材料、其制备方法和应用与电解海水析氧方法

Absstract of: CN122833646A

0001 本发明属于电解水析氧技术领域，具体涉及一种金团簇分散于铁钴镍硫化物表面的纳米材料、其制备方法和应用与电解海水析氧方法。所述纳米材料包括：铁钴镍硫化物基底和在所述铁钴镍硫化物基底表面分散的金团簇；所述金团簇的尺寸为1.0nm至2.0 nm。本发明构建了一种具有微观“海‑岛”协同抗氯结构的复合纳米材料。铁钴镍硫化物基底为连续“海”相载体，并且高分散锚定的特定尺寸金团簇为“岛”相的物质。“海‑岛”协同构建了连续且高强度的“负静电斥力场”抵御氯离子腐蚀。

一种电解水制氢系统运行参数调整策略确定方法、系统及存储介质

Absstract of: CN122833656A

本发明涉及电解水制氢技术领域，尤其涉及一种电解水制氢系统运行参数调整策略确定方法、系统及存储介质，包括：获取电解水制氢系统的多源运行数据，进行特征提取后按电极位置和时间建立电化学、温度与气泡动态特征的对应关系；对具有对应关系的电化学特征、温度特征和气泡动态特征进行多特征融合，得到多场协同特征集；基于多场协同特征集进行多尺度预测，得到电极短期状态预测结果和电极长期趋势预测结果，并确定电解水制氢系统的短期操作参数调整策略和长期操作参数调整策略。本发明通过融合电化学、温度和气泡动态特征并进行多尺度预测，能同时输出电极短期状态与长期趋势预测结果，为不同时间尺度的操作参数调整提供相应依据。

电解槽组件及其制备方法、电解槽和制氢系统

Absstract of: CN122833628A

本申请公开了一种电解槽组件及其制备方法、电解槽和制氢系统。电解槽组件，包括基材层和位于基材层至少一侧的复合涂层；在远离基材层侧，复合涂层包括Ti层、TiN层、Ta层、TaN层、Ta'层；基材层包括含钛基材层。本申请利于改善相邻涂层之间的结合力，降低复合涂层的接触电阻，提高电解槽组件(如阳极双极板)的耐腐蚀能力。

一种低渗氢的超薄一体化复合膜电极及其制备方法和应用

Absstract of: CN122833631A

本发明公开了一种低渗氢的超薄一体化复合膜电极及其制备方法和应用，该电极包括质子交换膜以及在质子交换膜两侧的阴极析氢催化层和阳极复合层，阳极复合层为三层复合结构，其由接触质子交换膜的具有氢气氧化能力的氢耗散层、位于中间的离聚物层和远离质子交换膜的具有析氧活性的阳极金属催化层组成。该低渗氢的超薄一体化复合膜电极的氢耗散层可以氧化从阴极侧渗透来的氢气，离聚物层可防止氢耗散层在高电位下被氧化，降低氢氧化活性，提升薄膜的使用安全性；质子诱导成核可增强催化层与质子交换膜的结合力提升耐久性；低渗氢的超薄一体化复合膜电极兼顾了减少渗氢、降低贵金属用量、提升水电解性能和稳定性的优势。

2H-2M - 2H-2M phase controlled tungsten-molybdenum diselenide alloy nanosheets and the manufacturing method for the same

Absstract of: KR20260142255A

본 발명은 우수한 수전해 수소발생반응 촉매 활성을 갖는 2H-2M 상이 조절된 텅스텐-몰리브덴 디셀레나이드 합금 나노시트 및 이의 제조방법에 관한 것이다. 본 발명의 텅스텐-몰리브덴 디셀레나이드 합금 나노시트 제조방법에 따르면, 간단하고 경제적인, 저온 콜로이드 용액 합성법을 이용하여 종래 전기전도성이 낮은 육방정계 2H 결정상의 몰리브덴 디셀레나이드 및 텅스텐 디셀레나이드가 아닌, 전기전도성이 우수하고 촉매 활성이 뛰어난 2H-2M 결정상이 조절된 텅스텐-몰리브덴 디셀레나이드를 선택적으로 손쉽게 합성할 수 있고, 결정상 조절이 용이하다. 또한, 상기 방법으로 제조된 2H-2M 결정상이 조절된 텅스텐-몰리브덴 디셀레나이드 합금은 일례로 수소발생반응(hydrogen evolution reaction; HER)에 있어서, 전류밀도가 10 mAcm-2일 때, 과전압 값이 200 mV 이하, 타펠(Tafel) 기울기가 100 mVdec-1 이하가 되도록 하는 우수한 촉매 활성을 가지므로, 기존 고가의 백금 촉매를 대체할 수 있는 이점이 있고, 더 나아가 신재생에너지 기반의 나노소재 기술분야에 널리 적용이 가능하다.

一种用于阴离子交换膜电解水制氢的三元过渡金属氧化物催化剂及其制备方法与应用

Absstract of: CN122833636A

本发明涉及电化学催化技术领域，尤其涉及一种用于阴离子交换膜（AEM）电解水制氢的三元过渡金属复合氧化物催化剂及其制备方法与在AEM电解槽中的应用。包括以下步骤：将第一过渡金属盐、第二过渡金属盐、第三过渡金属盐溶解于由水和醇类溶剂组成的混合溶剂中，得到金属盐混合溶液；向所述金属盐混合溶液中加入诱导剂，充分反应使体系完成溶胶‑凝胶转变，得到均匀湿凝胶；将所述湿凝胶在100‑200℃下热处理，得到三元过渡金属复合氧化物催化剂。本发明的目的在于提供一种用于AEM电解水阳极析氧反应的三元过渡金属复合氧化物催化剂，及其简便、可重复的溶胶‑凝胶制备方法，所得催化剂可直接用于AEM膜电极组件（MEA）的制备。

一种高熵金属间化合物及其制备方法和应用

Absstract of: CN122833632A

0001 本发明提供了一种高熵金属间化合物及其制备方法和应用，属于催化剂领域。本发明的制备方法，包括以下步骤：将锌盐、铒盐、镍盐、铂盐、铁盐、钴盐、有机配体和水混合进行水热反应，得到前驱体；将所述前驱体在含还原气的气体中进行退火，发生还原反应，得到所述高熵金属间化合物。本发明制备的高熵金属间化合物显著特点是原子台阶和界面处Pt原子可以进行动态迁移和自修复重构，这加快了质子转移，提高了催化剂的活性。此外，由于Pt原子的迁移，反应过程中非晶质布朗斯特德酸层可以在界面处原位重建，反应过程中出现的弗兰克不完全位错和缺陷促进了布朗斯特德酸活性位点的形成，提高了催化剂的本征活性。

一种用于电解水析氢的煤基多孔碳载低铂催化剂的制备及应用方法

Nº publicación: CN122833643A 29/09/2026

Applicant:

中国矿业大学

Absstract of: CN122833643A

0001 本发明公开了一种用于电解水析氢的煤基多孔碳载低铂催化剂的制备及应用方法，涉及纳米材料与电化学技术领域。以解决现有电解水析氢催化剂存在的贵金属负载量高、原料成本高、单一金属活性不足、长期稳定性差的问题。所述煤基多孔碳电极以烟煤为原料，经煤样处理、前驱体制备、多金属负载、Pt负载及涂片成型步骤制备而成，具体制备步骤如下：步骤1、煤样预处理；步骤2、制备烟煤衍生多孔碳；步骤3、对BPC负载金属Ni、Co，制备NiCo/BPC；步骤4、对NiCo/BPC负载金属Pt，制备PtNiCo/BPC。本发明通过多孔碳载体的高比表面积特性与 Ni、Co、Pt 多金属协同催化作用，有效增加了催化剂活性位点数量、降低了界面电荷转移电阻，显著提升了电解水析氢反应的催化活性与长期稳定性。