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BIPOLAR PLATE FOR AN ELECTROLYSIS SYSTEM

Resumen de: WO2026041485A1

The present invention relates to a bipolar plate (100) for an electrolysis system (200), wherein the bipolar plate (100) comprises: - a main body (101) having a first side (103) and a second side (105) opposite the first side (103), wherein a plurality of channels (107) run at least on the first side (103) from a first end to a second end of the bipolar plate (100) opposite the first end, wherein guide paths (109) are formed between respective adjacent channels (107), and wherein respective channels (107) comprise a number of openings (111) which are configured to guide fluid flowing through the channels (107) into the guide paths (109).

PROCESS FOR AMMONIA SYNTHESIS USING GREEN HYDROGEN AND METHOD FOR REVAMPING AN AMMONIA PLANT

Resumen de: AU2024257970A1

Process for synthesis of ammonia wherein: ammonia make-up gas (7) containing hydrogen and nitrogen is reacted in an ammonia converter (15) under ammonia forming conditions thus obtaining an ammonia-containing effluent (8); a first hydrogen portion contained in the ammonia make-up gas (7) is produced by reforming a hydrocarbon source (1) in a reforming process (100); a second hydrogen portion (19) contained in the ammonia make-up gas (7) is produced separately from said reforming process (100), by using at least a renewable energy source (SE, WE); a part of said hydrogen (19) produced in step (c) is stored in a hydrogen storage (103); hydrogen (20) from said hydrogen storage (103) is used to fully or partially replace said second hydrogen portion (19) when said renewable energy source (SE, WE) is fully or partially unavailable. Said process comprising the steps of: assessing an expected flow rate of the hydrogen (19) produced in step (c); adjusting a flow rate of the hydrocarbon source (1) so that a flow rate of the first hydrogen portion in said ammonia make- up gas (7) is in a desired ratio with respect to said expected flow rate; detecting an actual amount, e.g., a filling level, of said hydrogen in said hydrogen storage (103); detecting an actual flow rate of hydrogen produced using the renewable energy source (SE, WE), and adjusting a flow rate of the hydrogen (20) from said hydrogen storage (103) depending on said actual amount detected in said hydrogen storage (103) and

SEMICONDUCTOR CATALYST, CATALYST ELECTRODE, METHOD FOR PRODUCING REDUCED PRODUCT, AND DEVICE FOR PRODUCING REDUCED PRODUCT

Resumen de: EP4699693A1

A semiconductor catalyst is provided, which exhibits an effect of accelerating a reduction reaction by visible light irradiation and is excellent in durability. The semiconductor catalyst of the present disclosure includes thin film containing nitrogen-containing diamond particles in a plane direction and a height direction. The semiconductor catalyst can be produced by, for example, fixing, on a substrate having a positive or negative charge, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the nitrogen-containing diamond particles being opposite to that of the substrate, and laminating, on the fixed nitrogen-containing diamond particles, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the laminated nitrogen-containing diamond particles being opposite to that of the fixed nitrogen-containing diamond particles. The step of laminating is performed at least once after the step of fixing.

ELECTROLYZER SYSTEMS AND OPERATION THEREOF

Resumen de: US20260028730A1

Conventional control schemes for electrolyzers focus on maximizing electrical efficiency, which describes the relationship between the electrical energy consumed and the gas produced by the electrolyzer. However, the cost associated with high electrical efficiency may be unnecessarily expensive. In one embodiment presented herein, a model is used to determine the cost (or profit) associated with a gas produced by the electrolyzer at each of a plurality of operating conditions. The control system can select the operating condition to use based on which operating condition is associated with the lowest cost (or highest profit), even though that operating condition may not be associated with the highest electrical efficiency.

PROCESS FOR CRACKING AMMONIA

Resumen de: CN120813538A

A process for catalytic cracking of ammonia, the process comprising: supplying an ammonia feed gas to one or more heated catalyst-containing reaction vessels disposed within an ammonia cracking reactor; and cracking ammonia in the ammonia feed gas in the one or more catalyst-containing reaction vessels to produce a hydrogen-containing stream wherein the ammonia feed gas is fed to the or each reaction vessel at a pressure of at least 10 bar wherein the or each reaction vessel is heated to a temperature of at least 500 DEG C, and wherein the or each of the reaction vessels has a wall comprising or consisting of an alloy selected to resist both nitriding and creep deformation without failure at said temperature and pressure over an operating period of at least 1000 hours, 5000 hours, 10,000 hours, 50,000 hours or 100,000 hours.

PROCESS FOR CRACKING AMMONIA

Resumen de: CN120835863A

A process for catalytic cracking of ammonia, the process comprising: supplying an ammonia feed gas to one or more heated catalyst-containing reaction vessels disposed within an ammonia cracking reactor; and cracking ammonia in the ammonia feed gas in the one or more catalyst-containing reaction vessels to produce a hydrogen-containing stream wherein the reaction vessel or each of the reaction vessels has a wall comprised of at least a first alloy and a second alloy wherein the first alloy is more resistant to nitriding than the second alloy, and the second alloy provides mechanical support for the first alloy, and wherein at least a portion of the wall adjacent the catalyst is comprised of the first alloy.

CATALYST MATERIALS

Resumen de: WO2024218486A1

Oxygen evolution catalyst materials are provided with a pyrochlore-type structure and with (i) calcium and / or sodium as A-site elements of the pyrochlore-type structure; (ii) iridium and / or ruthenium as first B-site elements of the pyrochlore-type structure; (iii) niobium and / or tantalum as second B-site elements of the pyrochlore-type structure; and (iv) a molar ratio of A-site elements: first and second B-site elements is in the range of and including 0.8: 1 to 1:1.

METHOD AND SYSTEM FOR STORING HYDROGEN

Resumen de: WO2024218273A1

A method for storing hydrogen in a plurality of subsea storages in a system. The system comprising an electrolyser source (100) for producing hydrogen at a source pressure; a downstream compressor (200) for compressing the hydrogen from the source pressure to a compressed higher pressure; and a plurality of storages (300) each for storing compressed hydrogen at the compressed higher pressure and each being subsea. The method comprising at least the steps of: producing hydrogen (1000) by the electrolyser source (100) at the source pressure; passing the hydrogen (2000) to the plurality of storages (300) through a bypass line (210) around the compressor (200); and storing the hydrogen (3000) in at least one of the plurality of storages (300) at a first pressure below the compressed higher pressure. A system for storing hydrogen in a plurality of subsea storages, the system comprising: an electrolyser source (100) for producing hydrogen at a source pressure; a downstream compressor (200) for compressing the hydrogen from the source pressure to a compressed higher pressure; a plurality of storages (300) each for storing compressed hydrogen at the compressed higher pressure and each being subsea; and a controller (400) for controlling the electrolyser source (100), the downstream compressor (200), and valves (310) to the plurality of storages (300). The controller (400) is configured for controlling the system in, at least, two alternative ways: A) passing the hydrogen, produced by

水素の生成方法

Resumen de: CN120897885A

A method for reacting aluminum with water, the method comprising the steps of: adding aluminum metal to an aqueous solution comprising potassium hydroxide at a concentration between 0.1 M and 0.4 M and a surfactant; stirring the mixture of the previous step; and collecting the generated hydrogen. A composition for use in such a method for reacting aluminum with water, the composition comprising potassium hydroxide and a surfactant.

酸化物の製造方法

Resumen de: WO2024165389A1

The present invention relates to a pyrogenic process for manufacturing metal oxides or metalloid oxides wherein a metal precursor and/or a metalloid precursor is introduced into a flame formed by burning a gas mixture comprising oxygen and hydrogen, wherein at least a part of the hydrogen has been obtained from electrolysis of water or an aqueous solution, using electrical energy, at least a part of which has been obtained from a renewable energy source, and wherein at least a part of the thermal energy of the flame is transferred to a first heat transmission medium by means of at least one exchanger, thereby heating the first heat transmission medium to a maximal temperature in the range between 80 and 150 °C.

SYSTEMS AND METHODS FOR WATER ELECTROLYSIS WITH ELECTRODES HAVING NICKEL-COBALT-PHOSPHOROUS-BASED COMPOUNDS

Resumen de: EP4700159A1

Systems and methods are provided for water electrolysis. The system includes an electrolyte material configured for the exchange of anions, a first electrode including a nickel-cobalt-phosphorus-based compound, and a second electrode, wherein the first electrode and the second electrode are configured to exchange the anions through the electrolyte material.

Hydrogen generation

Resumen de: GB2700654A

An apparatus 1 for generating hydrogen includes a housing 10 containing a cylindrical first electrode 11 surrounding a part-conical or frusto-conical second electrode 12. Each of the first and second electrode is for submersion within water located within the housing. The first electrode may be an anode and the second electrode may be a cathode. The housing may be fabricated from or include glass or a glass body may be provided within the housing. The glass may be a borosilicate glass or heat tempered glass. The housing may be cylindrical or cuiboid. The distance between a lowermost portion of the housing and an uppermost portion of the housing may be at least three times greater than the height of the anode. The anode may be fabricated from a metal such as stainless steel which may have a protective coating. The anode may comprise a mesh, such as an unwelded mesh, for example with a mesh size of 149 to 841 µm. The cathode may be formed of stainless steel coated with a second metal. The surface of the cathode may be patterned or textured. The anode and cathode may be retained away from the walls of the housing. Figure 1

Process and plant

Resumen de: GB2700593A

A process for controlling an ammonia cracking plant comprising a fired ammonia cracking reactor 1, may comprise the steps of: decreasing a flow of ammonia feedstock 11 to the catalyst containing reaction tube inlets, and decreasing the heat output of a fuel combustion zone of the reactor. The obtained cracked gas from the outlet of the reaction tubes may be cooled 2, increased in pressure 3, and heated 4 before recirculating the cracked gas to the inlet of the reaction tubes and passing it through the reaction tubes. An ammonia plant in a turn down state may have operated said process. The process is intended to place the ammonia cracking plant into a turndown state which enables it to rapidly return to normal operation without wasting ammonia feedstock or hydrogen. A process may return the plant from turndown by increasing ammonia feedstock flow and heat output and obtaining cracked gas. Figure 2

CONTAMINATION MITIGATION SYSTEM FOR USE IN AN ELECTROLYSIS SYSTEM

Resumen de: EP4700154A1

An electrolysis system includes an electrolyzer stack and a contamination mitigation system. The electrolyzer stack includes an injection port fluidly connected with a cathode compartment of the electrolyzer stack. The contamination mitigation system is configured to remove ions from the electrolyzer stack to mitigate ion contamination in the electrolyzer stack. The contamination mitigation system includes a storage tank including formic acid therein and an injection line fluidly coupled between the storage tank and the injection port. The injection line is configured to direct the formic acid from the storage tank to the injection port for injection into the cathode compartment of the electrolyzer stack.

NANOSTRUCTURED ELECTRODE FOR WATER ELECTROLYSIS AND WATER ELECTROLYZER COMPRISING THE SAME

Resumen de: SE2350468A1

An electrode (200) for a proton exchange membrane water electrolyzer, the electrode (200) comprising a plurality of elongated nanostructures (220) arranged on a substrate (210). The elongated nanostructures (220) are attached to the substrate (210) at a respective first end and extend along a direction perpendicular to a plane of extension of the substrate (210). The plurality of elongated nanostructures (220) are coated with a conformal protective layer (230), and a catalyst layer (240) is arranged on the conformal protective layer. The catalyst layer (240) comprises a plurality of nanoparticles (241), the nanoparticles (241) forming a continuous coating on at least a part of the surface of the plurality of elongated nanostructures (220).

METHOD AND PLANT FOR PRODUCING HYDROGEN

Resumen de: AU2024256387A1

The invention relates to a method (100) for producing hydrogen (103), wherein feed water is subjected to electrolysis (10) with a cathode gas (101) being obtained, wherein the cathode gas (101) contains hydrogen, oxygen and some of the feed water, wherein a process gas flow (102) is formed using at least some of the cathode gas (101), wherein the process gas flow (102) contains at least some of the hydrogen, oxygen and feed water contained in the cathode gas (101), and wherein, in the process gas flow (102), at least some of the oxygen is subjected to an oxidative catalytic reaction with some of the hydrogen to form oxidation water, and wherein at least some of the feed water and the oxidation water in the process gas flow (102) are removed from the process gas flow (1029 in a water removal process. The catalytic reaction and the water removal process are carried out using one or more process units (41, 42), wherein the one process unit (41, 42) or each of the plurality of process units (41, 42) has a first adsorptive drying bed (4a), by means of which at least some of the feed water is removed from the process gas flow (102), a catalytic bed (4b) which is arranged downstream of the first drying bed (4a) and by means of which the catalytic reaction is carried out, and a second adsorptive drying bed (4c) which is arranged downstream of the catalytic bed and by means of which at least some of the oxidation water is removed from the process gas flow (102). The invention also pro

A METHOD FOR PRODUCING GREEN HYDROGEN BY ELECTROLYSIS IN A HYBRID POWER PLANT

Resumen de: WO2024217840A1

A method for producing green hydrogen by electrolysis in a hybrid power plant (10), which comprises at least: - a wind turbine (11 ) with a rotor (11.1), a drive-train and a generator; multiple photovoltaic modules (12), - an electrolysis unit (15) for producing hydrogen by electrical power generated by the wind turbine (11) and/or the photovoltaic modules (12), an internal electrical power grid interconnecting the generator, the photovoltaic modules (12) and the electrolysis unit (15) within the power plant (10) and - a control unit (16); wherein a) electrical energy is generated by using the photovoltaic modules (12) and/or wind turbines (11 ); b) cloud coverage and/or solar radiation is measured by at least one weather sensor (14) which is located in a windward position remote of the power plant (10) and which is connected to the control unit (16) via a data link; According to a first aspect of the invention the wind turbine (11) is used as kinetic energy storage and according to another aspect of the invention the wind turbine (11) is used as an energy absorber by increasing inertia of the rotor (11.1).

REDUCTION DEVICE, REDUCTION METHOD, AND PRODUCTION METHOD FOR REDUCTION PRODUCT

Resumen de: EP4699691A1

Provided is a reduction device that can be manufactured inexpensively and easily, has a wide reaction field, can achieve a reduction reaction even with low energy light such as visible light, and has a long catalyst life. The reduction device of the present disclosure includes diamond particles. It is preferable to contain the diamond particles as a diamond particle dispersion liquid. The diamond particles preferably contain nanodiamond particles having a particle size of 1 µm or less. The diamond particles preferably include detonation nanodiamond particles.

Method and plasma reactor for the production of hydrogen gas

Resumen de: GB2643493A

A method for the production of hydrogen gas comprising (i) providing a DC electrical power supply, (ii) providing a plasma reactor with chamber 105, plasma torch 135 with a plasma cathode extending in to the chamber, a plasma anode extending into the chamber, and first and second spray systems which extend into the chamber, (iii) establishing a DC electric potential between the cathode and anode to generate and sustain a reaction zone about a plasma arc, (iv) providing a spray of hydrogen containing feedstock into the reaction zone from the first spray system whereby a mixture of gases comprising hydrogen gas is formed in the chamber by decomposition of the feedstock, and (v) providing a spray of water into adjacent to the reaction zone from the second spray system, wherein the water spray cools and dilutes the mixture of gases formed in step (iv). A plasma reactor comprising a chamber, plasma torch comprising a plasma cathode extending into the chamber and multi-functional device with plasma anode extending into the chamber, first spray anode with first annual passage surrounding the anode and providing a spray of hydrogen containing feedstock, and a second spray system with second annual passage surrounding the first passage and providing a spray of water.

一种三维多孔铂碳HER催化剂的制备方法

Resumen de: CN121556073A

本发明公开了一种三维多孔铂碳HER催化剂的制备方法，包括以下步骤：一、对Na3C6H5O7·2H2O、CH4N2O和NH4Cl混合溶液进行雾化干燥，得到前驱体粉末；二、前驱体粉末进行高温热解，得到热解产物；三、热解产物进行酸洗，得到三维多孔载体；四、三维多孔载体进行铂负载，得到固体粉末；五、固体粉末进行热还原，得到三维多孔铂碳HER催化剂。本发明成功制备出具有多级孔结构的三维多孔铂碳HER催化剂，其均匀分布的活性位点与丰富的孔径结构协同作用，显著改善了HER过程的传质效率和反应动力学，从而有效提升了电催化析氢性能，该制备方法工艺简便、产物纯度高且易于规模化制备，展现出良好的应用前景。

一种光催化制氢用Cs-WO3-X/Zn0.5Cd0.5S复合催化剂及其制备方法和应用

Resumen de: CN121551027A

本发明公开一种光催化制氢用Cs‑WO3‑X/Zn0.5Cd0.5S复合催化剂及其制备方法和应用，属于可见光谱响应的光催化材料制备技术领域。本发明将CsCl3、WCl6和CO(NH2)2溶解于乙醇进行水热反应得到Cs‑WO3‑x粉末；将CdCl2·2.5H2O、ZnCl2和Na2S·9H2O溶解于水中，然后加入Cs‑WO3‑x粉末室温搅拌，离心、洗涤、干燥得到Cs‑WO3‑X/Zn0.5Cd0.5S复合催化剂。本发明所制备的Cs‑WO3‑X/Zn0.5Cd0.5S复合异质结催化剂集合了单一Cs‑WO3‑X和单一Zn0.5Cd0.5S的优点，并且构建了异质结形成内建电场，异质结抑制了载流子复合，提高了光吸收率，提高了析氢产率。

Co-NC纳米立方体负载单金属Rh催化剂的制备方法及在甲醇析氢中的应用

Resumen de: CN121551048A

本发明提供了一种Co‑NC纳米立方体负载单金属Rh纳米催化剂的制备方法及在甲醇析氢中的应用，通过金属离子与有机配体结合制备了Co‑NC纳米立方体前驱体，再通过高温煅烧获得Co‑NC纳米立方体，随后使用还原剂硼氢化钠原位还原Rh3+金属离子，制备了Co‑NC纳米立方体负载单金属Rh催化剂，并将其应用在催化四羟基二硼与甲醇反应制氢中，其催化制氢中氢气转换频率值达到了161(L(H2)·gCat.‑1·h‑1)以上。本发明技术方案得到的纳米催化剂的优点为制备工艺简单，对四羟基二硼与甲醇反应制氢具有较高的选择性和催化活性，以及其在极低温度下仍保留较高催化活性。

模块化碱性电解槽

Resumen de: CN121556057A

本发明公开一种模块化碱性电解槽，属于电解水制氢系统领域。包括电解小室、双极板、极框、端压板，极框上部开设有碱液出口，极框下部开设有碱液入口，在电解槽外围安装有n个输电板，n为不小于3的整数，所述的输电板焊接在极框外侧，极框与BOP的连接管道设有控制开关的阀门。所述的n个输电板为一个负极输电板和4个正极输电板或者一个正极输电板和4个负极输电板。本发明提供的模块化碱性电解槽，能够达到兼顾模块独立性、均衡运行、氢气和氧气纯度高的效果。

一种用于家庭治疗的小型制氢机

Resumen de: CN121556054A

本发明涉及小型制氢机技术领域，具体为一种用于家庭治疗的小型制氢机，加工单元包括固定设置在所述外壳内的蓄水罐，所述外壳内固定设置有支撑板，所述支撑板上固定设置有电解器，所述加工单元用于对水进行电解反应处理，启动装置，通过设置净化腔室上的水泵使其能够提供一个稳定的吸力，并且水源能够被净化腔室内的除杂管进行净化除杂，处理过后的水源再通过长管输送至装置的蓄水罐中进行存储，并且通过设置在蓄水罐外壁上的催化剂罐对蓄水罐内的溶液进行进一步的除杂加工，再通过软管一输送至装置电解器中进行电解反应，保证电解过程的高效进行，设置在电解器内的转板能够对其内部溶液含量进行实时的检测，保证装置运作时的安全性。

이온-전도성 멤브레인, 그와 같은 멤브레인의 제조 방법, 그와 같은 멤브레인을 포함하는 전기화학 전지 및 그와 같은 전지를 포함하는 플랜트

Nº publicación: KR20260025385A 24/02/2026

Solicitante:

젠하이큐브

Resumen de: AU2024305585A1

The invention relates to an ion-conducting membrane (10) for an electrochemical device, said membrane comprising a layer of a material comprising: - 5% to 30% by weight of a polymer binder and - 70% to 95% by weight of a powdered ceramic, the powdered ceramic comprising ceramic doped with yttrium oxide and/or ceramic doped with cerium oxide. The invention can be used to produce a non-porous membrane for low-temperature electrolysis (0°C to 150°C).