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484
resultados
Última actualización
11/09/2025 [07:01:00]
Resultados 425 a 450 de 484
Resumen de: CN119546546A
The invention relates to a method for producing hydrogen by photodissociation of water, comprising at least one step of contacting an aqueous solution with oxidized nanodiamonds under solar, natural or artificial illumination (or light).
Resumen de: WO2025149217A1
The present invention relates to an alkaline electrolysis device comprising: - at least one electrolysis cell having a reactor chamber, which has a hydrogen-side reactor-chamber region, containing the aqueous electrolyte, for breaking down the aqueous electrolyte into gaseous hydrogen and has an oxygen-side reactor-chamber region, containing the aqueous electrolyte, for breaking down the aqueous electrolyte into gaseous oxygen; - a hydrogen separator, which is connected to the hydrogen-side reactor-chamber region, for separating the gaseous hydrogen from the aqueous electrolyte introduced into the hydrogen separator; and - an oxygen separator, which is connected to the oxygen-side reactor-chamber region, for separating the gaseous oxygen from the aqueous electrolyte introduced into the oxygen separator; wherein the hydrogen separator comprises a first hydrogen-separator outlet for removing the aqueous electrolyte having a first hydrogen concentration, and a second hydrogen-separator outlet for removing the aqueous electrolyte having a second hydrogen concentration that is lower than the first hydrogen concentration; and wherein the first hydrogen-separator outlet and the second hydrogen-separator outlet can be or are connected to the reactor chamber.
Resumen de: WO2025150454A1
Provided is an operation method for a dehumidifier device for dehumidifying hydrogen gas produced by a hydrogen production device. The dehumidifier device comprises; a dehumidifier; a discharge line for discharging hydrogen gas dehumidified by the dehumidifier from the dehumidifier; a dew point measurement line connected to the discharge line; a dew point meter provided on the dew point measurement line; and an inlet valve and an outlet valve provided on opposite sides of the dew point meter on the dew point measurement line. The method includes: a stop step of stopping discharge of the hydrogen gas from the dehumidifier to the discharge line; and a maintenance step of maintaining a state in which a dew point meter installation part including at least a installation place of the dew point meter on the dew point measurement line is filled with dry gas when the discharge of the hydrogen gas from the dehumidifier to the discharge line is stopped.
Resumen de: WO2025148994A1
The present invention provides a direct electrolysis seawater hydrogen production method that effectively inhibits precipitation. In the present invention, natural seawater is used as an electrolyte; an alternating current is applied to an electrode; the polarity of the electrode is periodically and alternately converted between a cathode state and an anode state by utilizing the periodic change of the voltage of the alternating current; and when the electrode is in the anode state, OH- generated by means of a hydrogen evolution reaction in the cathode state is consumed to inhibit precipitation and a catalytic activity decrease of the electrode. The present invention further provides a solution electrolysis hydrogen production method that generates a precipitate under alkaline conditions.
Resumen de: US2025230560A1
An electrolyzer cell comprises a first half cell comprising a housing at least partially enclosing a cell interior, a first electrode coated with a first catalyst coating, wherein the first electrode is coupled to the housing in the cell interior without welding, a second electrode coupled to the housing in the cell interior without welding, and a separator positioned between the first electrode and the second electrode, wherein a voltage is applied between the first electrode and the second electrode.
Resumen de: US2025230562A1
A solid oxide electrochemical cell includes a solid oxide electrolyte, a fuel-side electrode located on a first side of the solid oxide electrolyte, and an air-side electrode located on a second side of the solid oxide electrolyte. The air-side electrode includes a strontium getter material, a current collector layer and a functional layer located between the current collector layer and the second side of the solid oxide electrolyte.
Resumen de: US2025230555A1
A method of generating hydrogen including applying a potential of −0.1 volts (V) to −1.0 V to an electrochemical cell, and the electrochemical cell is at least partially submerged in an aqueous solution. Further, on the application of the potential, the aqueous solution is reduced, thereby forming hydrogen. The electrochemical cell includes an electrocatalyst and a counter electrode. The electrocatalyst includes a substrate and vanadium-doped manganese spinel oxide microspheres (MnVxCo2-xO4) particles. The value of x is ≤0.4, the MnVxCo2-xO4 particles have a spherical shape, the MnVxCo2-xO4 particles have an average diameter of less than 100 nanometers (nm), and the MnVxCo2-xO4 particles are dispersed on the substrate to form the electrocatalyst.
Resumen de: US2025230563A1
The present invention relates to an electrocatalyst comprising a Cu substrate coated with a 3D TiO2/Cu microrods array decorated with nanoparticles of a noble metal, preferably Ru nanoparticles, an electrochemical cell comprising said electrocatalyst and their use for hydrogen production via hydrogen evolution reaction (HER) in basic conditions. The present invention also refers to an in-situ process for the preparation of said electrocatalyst and simultaneous production of hydrogen. The present invention also refers to a process for producing hydrogen which utilizes the electrochemical cell comprising the electrocatalyst according to the invention.
Resumen de: MX2025000634A
A water electrolysis system including a container; a plurality of microcells located inside the container; the microcells are centered around a central axis of the container; a first bracket located on a first side of the microcells; a second bracket located on a second side of the microcells; a plurality of magnets mounted on the first and the second brackets, the magnets are placed in parallel to the microcells; a liquid inside the container. The first and the second brackets are adapted to be connected to a motor. The first and the second brackets rotate during the electrolysis process. The magnets on the first bracket produce a first magnetic field and the magnets on the second bracket produce a second magnetic field; and the first and the second magnetic fields have opposite polarity.
Resumen de: US2025230040A1
Methods and systems for splitting one or more of water and carbon dioxide are disclosed. Exemplary methods can operate under substantially isothermal conditions. The methods can include use of a material including two or more spinel phases in a solid solution. The solid solution can include oxygen, aluminum, and one or more transition metals.
Resumen de: US2025230108A1
A hydrocarbon generation system includes a hydrocarbon generator, an electrolyzer, a water vapor supply line, and a heat exchanger. The hydrocarbon generator generates hydrocarbon through an exothermic reaction between a carbon oxide gas and hydrogen. The electrolyzer generates hydrogen from water vapor of raw materials, the generated hydrogen being supplied to the hydrocarbon generator. The water vapor supply line generates the water vapor of the raw materials by evaporating liquid water of the raw materials and supplies the generated water vapor to the electrolyzer. The heat exchanger uses heat of a reaction generated in the hydrocarbon generator to evaporate the liquid water of the raw materials in the water vapor supply line via heat transfer oil.
Resumen de: US2025230790A1
A system and method by which energy from ocean waves is converted into hydrogen, and that hydrogen is used to manifest electrical and mechanical energies by an energy consuming device. A portion of the generated electrical power is communicated to water electrolyzers which produce oxygen and hydrogen from water as gases. At least a portion of the generated hydrogen gas is transferred to a transportation ship via a hose-carrying, remotely operated (or otherwise unmanned) vehicle, and subsequently transferred to an energy-consuming module or infrastructure, where a portion of the hydrogen is consumed in order to manifest a generation of electrical energy, a mechanical motion, and/or a chemical reaction.
Resumen de: AU2024287197A1
A method for optimizing and controlling collaborative operation of an integrated energy system containing a complete hydrogen energy chain, comprising: building a complete hydrogen energy chain in an integrated energy system, and modeling the built complete hydrogen energy chain considering waste heat utilization of an electrolytic cell, a hydrogen-fired turbine, and a fuel cell and economic benefits achieved by hydrogen production by-products; considering system operation flexibility, hydrogen pipeline expansion, and equipment waste heat utilization based on a traditional power system model, a refined model of the complete hydrogen energy chain, a heat-related equipment model, and performing single objective and multi-objective optimization during solving; and optimizing a connection configuration between the complete hydrogen energy chain and the integrated energy system according to a solved result, and regulating and controlling output quantities of various types of energy between the complete hydrogen energy chain and the integrated energy system. A method for optimizing and controlling collaborative operation of an integrated energy system containing a complete hydrogen energy chain, comprising: building a complete hydrogen energy chain in an integrated energy system, and modeling the built complete hydrogen energy chain considering waste heat utilization of an electrolytic cell, a hydrogen-fired turbine, and a fuel cell and economic benefits achieved by hydrogen produc
Resumen de: AU2024210539A1
In this water electrolysis system, an alternating current (AC)-side connection end of a power converter is connected to an AC power system, at least one electrolytic stack and a series circuit configured by connecting the at least one electrolytic stack to a circuit breaker is connected to a direct current (DC)-side connection end of the power converter, before disconnecting the electrolytic stack from the series circuit, a controller reduces the power flowing to the DC-side connection end while controlling the speed at which the power converter reduces the power flowing to the DC-side connection end to a speed at which a difference from the reference value of the voltage amplitude of the AC power system is less than a predetermined value, and when the circuit breaker reaches a power sufficient to disconnect the internal DC circuit, the controller disconnects the circuit breaker connected to the DC circuit to disconnect the electrolytic stack from the series circuit.
Resumen de: AU2025204790A1
SYSTEM AND METHOD FORO CARBON DIOXIDE REACTOR CONTROL A system preferably including a carbon dioxide reactor. A method for carbon dioxide reactor control, preferably including selecting carbon dioxide reactor aspects based on a desired output composition, running a carbon dioxide reactor under controlled process conditions to produce a desired output composition, and/or altering the process conditions to alter the output composition. SYSTEM AND METHOD FORO CARBON DIOXIDE REACTOR CONTROL A system preferably including a carbon dioxide reactor. A method for carbon dioxide reactor control, preferably including selecting carbon dioxide reactor aspects based on a desired output composition, running a carbon dioxide reactor under controlled process conditions to produce a desired output composition, and/or altering the process conditions to alter the output composition. un u n s y s t e m p r e f e r a b l y i n c l u d i n g a c a r b o n d i o x i d e r e a c t o r m e t h o d f o r c a r b o n d i o x i d e r e a c t o r c o n t r o l , p r e f e r a b l y i n c l u d i n g s e l e c t i n g c a r b o n d i o x i d e r e a c t o r a s p e c t s b a s e d o n a d e s i r e d o u t p u t c o m p o s i t i o n , r u n n i n g a c a r b o n d i o x i d e r e a c t o r u n d e r c o n t r o l l e d p r o c e s s c o n d i t i o n s t o p r o d u c e a d e s i r e d o u t p u t c o m p o s i t i o n , a n d o r a l t e r i n g t h e p r o c e s s c o n d i t i o n s t o a l t e r t h e
Resumen de: WO2025150583A1
The present invention relates to a porous transport layer and a water electrolysis system comprising same. The porous transport layer according to the present invention may comprise a porous layer including a fluorine-based resin region in a part of one or both surfaces of the porous layer.
Resumen de: US2024395434A1
A reactor block to extract hydrogen from water includes a first opening configured to receive gasified water, a second opening, and a reactor plate. A channel is formed in the reactor plate and disposed in a fluid path between the first opening and the second opening and a radioactive coating is applied to the channel. The second opening is configured to eject hydrogen generated by radiolysis of at least a portion of the gasified water received at the first opening and passed through the channel to the second opening.
Resumen de: CN119604997A
The invention relates to: a bipolar plate (1); and an electrochemical cell (12) comprising a plurality of such bipolar plates (1, 1 '). The bipolar plate (1) comprises a first half plate (1a) and a second half plate (1b) which are fixedly connected with each other, the bipolar plate (1) is provided with a plurality of fluid channel openings (2), and the fluid channel openings comprise fluid inlet openings (2a, 2c and 2e) and fluid outlet openings (2b, 2d and 2f); on both sides of the bipolar plate (1) there are a first distributor field (3) for distributing the fluid, an active field (4) and a second distributor field (5) for distributing the fluid. At least one seal (6, 6 ') is also present on each side of the bipolar plate (1), the seals (6, 6') being positioned one above the other in at least one transition region (7) between the fluid channel opening (2) and the adjacent distributor field (3, 5) as seen perpendicularly to the plane of expansion of the bipolar plate (1) and being reinforced by embossing structures (9a, 9b).
Resumen de: WO2025150583A1
The present invention relates to a porous transport layer and a water electrolysis system comprising same. The porous transport layer according to the present invention may comprise a porous layer including a fluorine-based resin region in a part of one or both surfaces of the porous layer.
Resumen de: AT527859A1
Elektrolyseur zur alkalischen Wasserstoffelektrolyse, umfassend eine Gleichspannungsquelle, insbesondere einen Gleichrichter (1) mit einem elektrischen Plus-Pol (2) und einem elektrischen Minus-Pol (3), sowie Medienzuleitungen (4) für ein Elektrolysemedium und Medienableitungen (5) für Produktmedien, wobei zwischen dem Plus-Pol (2) und dem Minus-Pol (3) mehrere, über elektrische Verbindungsleitungen (9) in Serie geschaltete Elektrolyseblöcke (6) angeschlossen sind, wobei die Elektrolyseblöcke (6) jeweils eine Vielzahl elektrisch in Serie geschalteter und bündig mechanisch verspannter Elektrolysezellen (7) aufweisen, wobei die Medienzuleitungen (4) und die Medienableitungen (5) jeweils seriell durch die Elektrolyseblöcke (6) verlaufen und sich innerhalb jedes einzelnen Elektrolyseblocks (6) auf individuelle Zellzuleitungen (4‘, 4‘‘) und individuelle Zellableitungen (5‘, 5‘‘) der Elektrolysezellen (7) verteilen.
Resumen de: CN120311209A
本公开涉及一种双极板、制氢电解槽及制氢设备。其中，双极板包括相对设置的第一极板和第二极板以及围绕所述第一极板和第二极板边缘设置的极框，所述第一极板、第二极板和极框围成中空的内腔，用于容纳电解液；所述第一极板及第二极板上设置有多个喷淋孔，该多个喷淋孔与所述内腔连通，用于喷出所述内腔中的电解液；所述极框上设置有第一进液口和第一排气口，所述第一进液口与所述内腔连通，用于向所述内腔中通入电解液，所述第一排气口用于排出电解产生的气体。应用本公开双极板的制氢设备无需设置气液分离装置，从而节约制氢设备的制造成本，并降低制氢生产的准入门槛。
Resumen de: CN120311243A
本发明涉及电催化技术领域，提出了一种金属含氧酸盐覆盖镍铁层状双氢氧化物材料及其制备方法和应用。所述材料是以NiFe‑LDH为核，纳米MIL‑101(M)为壳的核壳结构，M为Cr、Mo、W和V中的至少一种。本发明通过原位重构MOF形成金属含氧酸盐(MO42‑)覆盖层，该覆盖层能够优先富集海水中的Cl‑，有效改变表面竞争吸附行为，MOF多孔结构使得OH‑更有效地吸附到NiFe‑LDH活性层表面上，从而增强了OER的选择性和抗Cl‑引起的腐蚀性，显著提升了催化剂在电解海水制氢过程中的稳定性和活性。本发明不仅保持了NiFe‑LDH的高催化活性，还有效地排斥了海水中的氯离子，稳定了NiFe‑LDH阳极海水氧化，在电解海水可持续制氢方面展现出实际应用潜力。
Resumen de: CN120311237A
本发明涉及催化剂加工技术领域，公开了一种高活性过渡金属磷化物电解水催化剂及其制备方法，所述一种高活性过渡金属磷化物电解水催化剂包括以下重量份数的组份：六水合二氯化钴：1‑3份；三氯化钌：0.5‑1.5份；氯化铱(Ⅲ)水合物：0.5‑1.5份；五水硫酸铜：1‑2份；次磷酸钠：2‑4份；尿素：1‑2份；葡萄糖：1‑2份；九水硫化钠：1‑2份；结晶氯化铝：0.5‑1份；去离子水：50‑100份；十六烷基三甲基溴化铵：0.1‑0.5份。本发明通过引入等离子体辅助处理技术，优化催化剂的电子结构，提高了其电导率和稳定性，增强了电解水制氢的效率和耐久性。
Resumen de: CN120311238A
本发明提供了一种铁掺杂镍钴纳米材料的制备方法，包括以下步骤，首先将镍源、铁源、钴源和溶剂混合后，得到混合溶液；将还原剂和碱性溶液分散混合后，得到还原剂溶液；然后在保护性气氛和/或还原性气氛下，将上述步骤得到的混合溶液和还原剂溶液再次混合后，进行低温反应，得到铁掺杂镍钴纳米材料。本发明合成方法简单，产量高，制备过程绿色无污染，通过调整掺杂Fe的含量可以优化催化剂的OER活性，并且在器件上表现出了极佳的催化性能，具有广阔的应用前景。
Nº publicación: CN120311235A 15/07/2025
Solicitante:
武汉大学
Resumen de: CN120311235A
本发明公开了一种高效电解水阳极材料的制备方法，具体地，公开了一种三元催化剂的制备方法，该方法包括S1：去除商用泡沫镍表面的有机杂质及氧化层，得到处理后泡沫镍；S2：将所述处理后泡沫镍在反应液中进行水热反应，得到所述三元催化剂；所述反应液包含Fe3+、Zn2+、OH‑以及CO32‑；所述水热反应是在温度为120℃中进行12小时进行的。该方法高效、低成本、且易大面积获取三元催化剂。
BOPI
Sede Electrónica
