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Distributed Hydrogen Energy System and Method

Absstract of: US20260168622A1

0000 A distributed hydrogen energy system adds onto existing infrastructure of a localized renewable energy microgrid and utilizes excess generated energy to power an electrolyzer to produce hydrogen gas on site that is compressed and stored in a stationary pressure vessel. The stored hydrogen gas can be used directly within the local renewable energy microgrid wherein the stored hydrogen gas is converted to energy through use of one or more fuel cells or can be used in the context of a distributed energy system wherein the stored hydrogen gas is shared as part of a larger distribution network via pipeline or via one or more portable pressure vessels.

ELECTROLYZER, USE, OPERATION AND A METHOD OF PRODUCTION THEREOF

Absstract of: AU2024389236A1

An electrolyzer stack (17) wherein each of the electrode compartments (5, 6) is delimited by the ion-transporting separator (15) and a bipolar plate (14) as well as a gasket (25) that is surrounding the electrode compartments (5, 6). An electrolyte manifold (27) extends along the stack (17) and through an opening (20) in each of the bipolar plates (14). The electrolyte manifold (27) is formed by multiple serially connected flow restrictors (28), of which one flow restrictor (28) is provided per cell (1) and inserted between neighbouring gaskets (25) and comprises a flow canal (30) having a canal inlet (30 A) and a canal outlet (30B), wherein the canal inlet (30 A) is provided in the throughput opening and fluid-flow connected to the electrolyte manifold (27) and the canal outlet (30B) is fluid-flow connected to one of the cells (1) for supply of electrolyte from the electrolyte manifold (27) to the respective cell (1). The canal is narrow and long for reducing shunt currents and for providing a pressure drop larger, for example at least 10 times higher, than a pressure drop along the electrolyte manifold (27).

CATALYTIC COATING

Absstract of: AU2024395036A1

The invention concerns a method of electrolysing water using an electrolyser comprising an anode; a cathode and optionally a separator; wherein at least one of the cathode and the separator comprises a substrate and a coating, and the coating comprises 9.5 to 35 wt% chromium; 10 to 75 wt% cobalt; and 10 to 60 wt% of one or more further transition metals and/or one or more non-metallic elements selected from C, P, N and B.

Systems for Generating Hydrogen

Absstract of: AU2026204236A1

A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis. un u n

COMPOSITE CATALYST FOR AMMONIA DECOMPOSITION AND HYDROGEN PRODUCTION AND METHOD FOR PRODUCING THE SAME

Absstract of: US20260166526A1

One embodiment of the present invention provides a metal composite catalyst for ammonia decomposition and hydrogen production, comprising: a composite metal oxide support; and metal nanoparticles dispersed on a surface or inside pores of the composite metal oxide; wherein the composite metal oxide support is derived from a layered double hydroxide comprising nickel and at least two types of metals different from nickel, the metal nanoparticles are reduced from the composite metal oxide support, and a weight content of nickel metal, measured by ICP analysis, is 45 wt % or more.

CATALYST FOR SEAWATER ELECTROLYSIS, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Absstract of: WO2026123413A1

The present invention relates to the technical field of water electrolysis. Disclosed are a catalyst for seawater electrolysis, and a preparation method therefor and a use thereof. A MOFs-based electrocatalyst having excellent chloride ion corrosion resistance, stability and high controllability is synthesized by means of sulfuration treatment, and is used for an OER reaction of seawater electrolysis. The catalyst has excellent structural stability, chlorine corrosion resistance, more surface active sites, and high catalytic activity. Upon an electrochemical test of the catalyst, only Ni3S4 is restructured to form S-O anions, while NiFe-MOF does not undergo significant oxidation and structural changes, indicating that the NiFe-MOF has good structural stability. In addition, the S-O anions are preferentially adsorbed onto Fe3+ at a heterogeneous interface, thereby modulating the electronic structure of nearby Ni2+, and thus optimizing the adsorption and desorption ability of Ni2+ toward OER reaction intermediates.

SYSTEMS AND METHODS FOR HARNESSING THERMAL GRADIENT ENERGY

Absstract of: WO2026128841A2

A method and system of generating electrical power or hydrogen from thermal energy is disclosed. The method includes adding heat to (or removing heat from) a salinity gradient generator configured to generate a more concentrated and a less concentrated saline solution. The method further includes drawing the more concentrated saline solution and the less concentrated saline solution from the salinity gradient generator and feeding the more concentrated saline solution and the less concentrated saline solution into a power generator. Feeding the saline solutions into the power generator causes the power generator to receive the saline solutions and generate power by performing a controlled mixing of the more concentrated saline solution and the less concentrated saline solution. The method further includes drawing, from the power generator, a combined saline solution comprising the mixed saline solutions and feeding the combined saline solution to the salinity gradient generator.

KILOWATT-SCALE REACTION DEVICE FOR WATER-ELECTROLYSIS-BASED HYDROGEN PRODUCTION COUPLED WITH OXIDATION

Absstract of: WO2026123439A1

A kilowatt-scale reaction device for water-electrolysis-based hydrogen production coupled with oxidation, comprising a power supply system, a reactor system, a raw material supply system, a cooling system, and a gas detection system. The reactor system comprises integrated condensation reactors (2) connected to each other and a static mixer (3). The raw material supply system comprises raw material tanks (4). The raw material tanks (4) are communicated with the static mixer (3). The cooling system comprises a mixer cold trap (8) and a reactor cold trap (9). The mixer cold trap (8) is communicated with the static mixer (3). The reactor cold trap (9) is communicated with the integrated condensation reactors (2). A reaction system operates safely and stably, enabling co-production of high-purity hydrogen at a cathode while achieving electrocatalytic oxidation of various biomass molecules, thereby expanding the reaction scale.

고체 산화물형 수전해용 스테인리스 강재

Absstract of: WO2025216104A1

This stainless steel material for solid oxide type water electrolysis contains, on a mass basis, 0.030% or less of C, 0.20% or less of Si, less than 0.30% of Mn, 0.050% or less of P, 0.0030% or less of S, 19.0-24.0% of Cr, 2.5% or less of Mo, 0.01-0.15% of Al, 0.0001-0.0100% of Mg, 0.030% or less of N, 0.40% or less of Nb, 0.40% or less of Ti, 1.00% or less of Ni and 1.00% or less of Cu, with the remainder comprising Fe and impurities. In this stainless steel material for solid oxide type water electrolysis, the average particle diameter of inclusions is 0.2-3.0 μm, the abundance of inclusions is 30-150 inclusions/mm2, the aspect ratio of inclusions is more than 1.0 and less than 3.0, and the proportion among inclusions of Mg-containing inclusions in which the Mg concentration is 0.5 mass% or more is 0.30 or more.

POSITIVE ELECTRODE FOR ELECTROLYSIS AND METHOD FOR PRODUCING SAME

Absstract of: US20260171475A1

An anode for electrolysis in which electrolysis performance is less likely to deteriorate even when electric power having a large output fluctuation, such as renewable energy, is used as a power source and in which excellent catalytic activity is stably maintained for a long period of time is provided. The anode for electrolysis 10 includes a conductive substrate 2 in which at least a surface of the conductive substrate 2 is formed of nickel or a nickel-based alloy; and a first layer 4 formed on the surface of the conductive substrate 2, the first layer 4 being capable of functioning as a catalyst layer containing a lithium-containing nickel cobalt oxide represented by a composition formula LixNiyCozO4 (0.05≤x≤1.0, 1.0≤y≤2.0, 1.0≤z≤2.0, and x+y+z=2 to 3).

ELECTROCATALYST AND ELECTROLYSER COMPRISING THE SAME

Absstract of: WO2026123080A1

Disclosed herein is an electrocatalyst comprising a ruthenium and/or iridium-based host material and a doping metal. It can be used in a water electrolyser (such as proton exchange membrane water electrolyser) with reverse osmosis (RO) treated seawater being used as feed water.

Method for purifying hydrogen to high purity in electrolysis system

Absstract of: KR20260090770A

본 발명은 수전해 시스템에서 수소를 고순도로 정제하기 위한 방법에 관한 것이다. 보다 구체적으로는 수전해 시스템에서 생성된 수소를 고순도로 정제하기 위해 PSA(압력 변동 흡착)와 TSA(온도 변동 흡착) 공정을 결합하고, 복수의 온도 변동 흡착 유닛(TSA Unit)을 교번적으로 동작함으로써, 수소에 포함된 미량의 불순물(산소, 수분 등)을 단계별로 제거하여 고순도의 수소로 정제하는 방법에 관한 것이다.

Method for manufacturing an electrode for the production of hydrogen and other chemical species, the electrode obtained using the same method, and its use (Machine-translation by Google Translate, not legally binding)

Absstract of: ES3070799A1

Method for manufacturing an electrode for the production of hydrogen and other chemical species, electrode obtained therefrom, and its use. The present invention discloses a method for manufacturing an electrode for hydrogen production in which an electrochemical cell is formed from sheets of porous material that have at least their surface coated with nickel. Between 5 g/m2 and 400 g/m2 of magnetite are electrochemically deposited onto the electrode for a period of between 2 and 60 minutes. The magnetite coating has a rough surface with discontinuous nanoscale surface structures and protruding elements ranging from 10 to 2000 nm. The present invention also relates to the electrode obtained by the proposed method and its use in the production of hydrogen by alkaline electrolysis, such that it is produced at a high current density and high efficiency. (Machine-translation by Google Translate, not legally binding)

IRIDIUM OXIDE AND METHOD FOR PRODUCING SAME, AND MEMBRANE ELECTRODE ASSEMBLY FOR PROTON EXCHANGE MEMBRANE-TYPE WATER ELECTROLYSIS VESSEL AND PROTON EXCHANGE MEMBRANE-TYPE WATER ELECTROLYSIS VESSEL USING IRIDIUM OXIDE

Absstract of: EP4759970A1

Object To provide iridium oxide suitable for proton exchange membrane-type water electrolysis, the iridium oxide having high initial activity and being excellent in stability during a long-term operation.Solution Provided is iridium oxide having a rutile structure, the iridium oxide being characterized by having: a crystallite size of 2.0 nm to 4.0 nm as calculated from a peak of a (110) plane of the rutile-structured iridium oxide determined by X-ray diffraction; and a BET specific surface area, measured by nitrogen adsorption measurement, of 70 m²/g to 120 m²/g.

低温高効率アンモニアクラッキング反応用触媒、その製造方法及びそれを用いた水素製造方法

Absstract of: KR20250001082A

The present invention relates to a ruthenium-based ammonia cracking catalyst and specifically, relates to an ammonia cracking catalyst in which ruthenium, which is an active metal, and potassium, which is an auxiliary metal, are on a yttria-stabilized zirconia support body containing lanthanum, and a manufacturing method thereof, wherein the ammonia cracking catalyst according to the present invention adjusts a ratio of ruthenium/potassium together with the lanthanum-containing yttria-stabilized zirconia-alumina support body even when a low content of ruthenium metal is used, minimizes the content of chlorine and nitrogen compounds, which are impurities within the catalyst, and designates a position of the active metal within the catalyst, thereby achieving a very high ammonia conversion rate and hydrogen production efficiency even at low temperatures compared to a catalyst having the same ruthenium metal content.

ELECTRODE PLATE OF ELECTROLYSIS DEVICE, AND ELECTROLYSIS DEVICE USING SAME

Absstract of: EP4759969A1

The present invention discloses an electrode plate of an electrolysis apparatus and an electrolysis apparatus to which the electrode plate is applied. A direct current power supply is connected to the electrolysis apparatus and an electrolyte is injected into the electrolysis apparatus, to convert electric energy into chemical energy. The electrode plate includes a silicon-based electrode plate made of a doped conductive silicon material. The silicon-based electrode plate is electrically connected to the direct current power supply, and a flow channel is disposed on at least one surface of the silicon-based electrode plate, so that the electrolyte is input into the electrolysis apparatus through the silicon-based electrode plate, to implement an electrochemical reaction and output a reaction product. In the present invention, on a basis of maintaining good mechanical support and sealing function, material and process costs of the electrode plate of the electrolysis apparatus are significantly reduced, an overpotential of the electrochemical reaction for producing the reaction product is reduced, and an electrolysis reaction rate per unit area in the electrolysis apparatus is increased. Therefore, an operating voltage is effectively reduced at a same electrochemical reaction rate, and energy conversion efficiency of the electrochemical reaction is finally significantly improved.

Oxygen evolution reaction catalyst and method for its preparation

Absstract of: GB2702505A

A process for preparing a catalyst, as well as a catalyst, the catalyst comprising an oxygen evolution reaction electrocatalyst OER, a hydrogen oxidation reaction HOR electrocatalyst, and a particulate solid support are described. The OER electrocatalyst and the HOR catalyst are both supported on the particulate solid support. The OER is deposited from an aqueous mixture comprising a particulate solid support and a halide free metalate which comprises iridium and/or ruthenium. The pH of the mixture is reduced to ≤7 to precipitate the oxygenated metal into the solid particulate support. In the process, the OER electrocatalyst is deposited before the HOR electrocatalyst. The catalyst may be incorporated into a catalyst coated membrane (CCM) and used in a fuel cell. Figure 1a

MEMBRANE-ELECTRODE ASSEMBLY FOR A WATER ELECTROLYSER

Absstract of: 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.

OFFSHORE PLATFORM ALLOWING CARBON NEUTRAL FUEL TO BE PRODUCED, STORED AND SUPPLIED, OVERCOMING INTERMITTENTCY OF RENEWABLE ENERGY

Absstract of: EP4759698A1

The present invention relates to an offshore platform allowing carbon neutral fuel to be produced, stored and supplied, overcoming intermittency of renewable energy, the offshore platform comprising: a main body located offshore; a hydrogen production unit, disposed in the main body, for producing hydrogen via sea water electrolysis using a water electrolysis device and storing the hydrogen; an ammonia production unit, disposed in the main body, for synthesizing, via a first synthesis device, the hydrogen flowing in from the hydrogen production unit with nitrogen in the air to produce ammonia and storing same; a carbon dioxide storage unit, disposed in the main body, for storing carbon dioxide flowing in from the ship; and a methanol production unit, disposed in the main body, for synthesizing, by means of a second synthesis device, the carbon dioxide flowing in from the carbon dioxide storage unit and hydrogen flowing in from the hydrogen production unit to produce methanol and storing same.

一种焦耳热耦合金属催化反应器催化水两步循环热分解制氢气的方法

Absstract of: CN122212024A

0001 本发明属于催化领域，具体涉及一种焦耳热耦合金属催化反应器催化水两步循环热分解制氢气的方法。通过将直流或交流电源直接与金属催化反应器的两端相连，利用金属催化反应器的电阻致热来实现焦耳热加热；将水蒸气原料气和惰性气体周期性地通入焦耳热加热的金属催化反应器进行催化转化反应制备氢气。本发明具有电热转化效率>90％、产物易于分离、制氢能量效率更高、催化剂无需放大、工业化难度小、过程重复性好、操作安全、催化剂寿命长可靠等特点，具有广阔的工业应用前景。

一种混联制氢系统及其运行优化方法

Absstract of: CN122214966A

本申请提供一种混联制氢系统及其运行优化方法，涉及能源技术领域。可再生能源发电单元通过功率变换单元连接至公共直流母线；电解槽单元包括ALK电解槽和PEM电解槽，分别通过独立电气支路并联接入直流母线；热管理单元与电解槽连接，根据每台电解槽实时负荷与温度按需散热；氢气汇流与存储单元包括汇流管道和储氢装置，各电解槽产氢出口接入汇流管道后连接至储氢装置。本申请进行数学建模，并提出了一种可以使系统制氢收益最大化的运行优化方法。本申请具有良好的扩展性，在不同配比下实时调度各产氢单元的运行功率。在保证系统安全的同时，提升可再生能源消纳率并最大化制氢总体收益，兼顾灵活性与经济性，实现性能最优化。

一种钛掺杂二氧化钌及其制备方法与应用

Absstract of: CN122214948A

0001 本发明公开了一种钛掺杂二氧化钌及其制备方法与应用，属于电化学能源材料领域，通过将三氯化钌和钛酸四丁酯溶解在醇类溶剂后置于油浴锅中反应，再将反应后的样品洗涤、负载、烘干、煅烧，最终成功制得了钛掺杂二氧化钌。制得钛掺杂二氧化钌呈现出多孔簇状形貌，能够暴漏更多活性位点，利用钛掺杂调控电子转移，诱导反应机制转变提升了二氧化钌的活性和稳定性，将其作为催化剂用于电解水制氢时表现出了优异的析氧性能，在电化学能源领域具有广泛的应用前景。

一种有机无机复合隔膜用浆料及其制备方法和应用

Absstract of: CN122214960A

0001 本发明提供一种有机无机复合隔膜用浆料及其制备方法和应用，涉及电解水制氢技术领域。本发明的有机无机复合隔膜用浆料，包括固相组分和液相组分，所述固相组分包括LDH纳米片、粘结剂和造孔剂；所述LDH纳米片在浆料中的质量占比为40~60%；所述LDH纳米片的厚度h为10~100 nm、平均横向尺寸D为50~2000 nm。本发明以特定尺寸的层状双金属氢氧化物纳米片为核心功能填料的有机无机复合隔膜用浆料，成功制备出兼具低面电阻、高泡点压力、高机械强度、优异绝缘性及良好稳定性的复合隔膜，可广泛应用于碱性水电解装置，可显著降低电解能耗、提升氢气纯度与装置运行稳定性。

一种超长重力热管式地热能原位水解制氢系统及方法

Absstract of: CN122209308A

0001 本发明涉及地热能开发与氢气制备技术领域，具体涉及一种超长重力热管式地热能原位水解制氢系统及方法，包括：超长重力热管、水工质注入装置、反应催化模块、地面热利用装置和气体回收利用模块；所述超长重力热管设置在地热井内，所述超长重力热管的底部至少部分深入地下热储，所述超长重力热管内部设有反应催化模块，所述反应催化模块与所述水工质注入装置相连通，所述超长重力热管的出口端与地面热利用装置的入口端相连，所述气体回收利用装置的入口端与地面热利用装置的出口端相连。本发明通过向超长重力热管内的反应催化模块填充热催化剂，并利用深入地底的超长重力热管吸收地下热源的能量，从而降低水解制氢的难度并提高能源利用率。

一种单原子层氧化铱纳米片、制备方法及其在电催化析氧反应中的应用

Nº publicación: CN122212285A 16/06/2026

Applicant:

中车长春轨道客车股份有限公司

Absstract of: CN122212285A

0001 一种单原子层氧化铱纳米片、制备方法及其在电催化析氧反应中的应用，属于无机纳米功能材料技术领域。本发明通过“蜂窝中心位点精准占位的前驱体合成—梯度分步质子交换拓扑锁定—定向剪切球磨极限剥离”的全流程工艺，制备得到IrO<6>八面体共边连接、具有类石墨烯蜂窝拓扑结构的单原子层氧化铱纳米片，产物厚度为0.4~0.5 nm。本发明解决了现有蜂窝层状铱基氧化物难以剥离为单原子层、酸处理易破坏骨架、剥离易引入缺陷的难题。所得纳米片在0.1M HClO<4>电解液中，达到10 mA/cm<2>电流密度的析氧过电位约为250 mV，兼具优异的催化活性与结构稳定性，在质子交换膜电解水领域具有广阔的应用前景。