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575
results.
Updated on
24/12/2025 [07:09:00]
Results 450 to 475 of 575
Absstract of: CN120866865A
The invention relates to a non-noble metal catalyst for triggering hydrogen overflow through double electron transfer channels, and a preparation method and application thereof, and belongs to the technical field of HER catalysts. The non-noble metal catalyst for triggering hydrogen overflow through the double electron transfer channels is NiMoS/NiMo, and the atomic formula of the non-noble metal catalyst is a Ni3S2-MoS2-MoNi4 heterogeneous heterostructure. According to the non-noble metal catalyst NiMoS/NiMo for triggering hydrogen overflow through the double electron transfer channels, the overpotential is as low as 18 mV when the current density reaches 10 mA cm <-2 >, the Tafel slope is 35.2 mV dec-1, and the non-noble metal catalyst NiMoS/NiMo is superior to a commercial Pt/C catalyst. The prepared non-noble metal catalyst for triggering hydrogen overflow through the double electron transfer channels shows excellent operation stability and high activity in seawater and alkaline membrane water electrolysis, and a thought is provided for application of non-noble metal in industrial efficient hydrogen production.
Absstract of: CN120866840A
The invention discloses a two-step water electrolysis hydrogen production device based on a three-electrode system and a hydrogen production method, and belongs to the technical field of water electrolysis, the two-step water electrolysis hydrogen production device comprises an oxygen evolution catalytic electrode, a hydrogen evolution catalytic electrode and a quinone polymer electrode HMND, the HMND is reduced in an acidic electrolyte to form a negatively charged intermediate, and the negatively charged intermediate and hydrogen ions are subjected to a coordination reaction to form HMND-2H; hydrogen ions are subjected to electrochemical reduction at the cathode oxygen evolution catalytic electrode to generate hydrogen, the HMND-2H electrode is subjected to electrochemical oxidation to form an HMND electrode, and electrons flow to the hydrogen evolution catalytic electrode from the HMND-2H electrode through an external circuit; the HMND electrode is electrochemically reduced into an HMND-2H electrode, water molecules are electrochemically oxidized into oxygen on the surface of the oxygen evolution catalytic electrode, and electrons flow to the HMND electrode from the oxygen evolution catalytic electrode through an external circuit; the hydrogen production process and the oxygen production process of the acidic electrolyzed water are carried out step by step, a diaphragm is not needed, and the method is low in toxicity, low in cost and environment-friendly.
Absstract of: CN120866841A
The invention relates to the technical field of hydrogen production equipment, in particular to an alkali liquor hydrogen production electrolytic bath which comprises an electrolytic bath body, and the electrolytic bath body at least comprises a pair of end plates distributed in a mirror symmetry mode, electrolysis units distributed between the end plates and a pull rod assembly connected with the end plates. The front end and the rear end of the threaded pull rod are sleeved with disc spring assemblies respectively, and fastening bolts are connected to the outer sides of the disc spring assemblies in a threaded mode. According to the alkaline liquor hydrogen production electrolytic tank, external power connection of all the electrolytic units is achieved through the power connection assembly, operation is easy, and operation is achieved by containing the pull rod assembly and operating the pull rod assembly: the corresponding driving assemblies can be driven to move inwards by oppositely screwing two fastening bolts, and then all the extrusion assemblies are synchronously driven to move downwards; and the wiring folded plate and the wiring mainboard are pressed and fixed.
Absstract of: CN120879745A
The invention discloses an energy management control strategy for a wind-light-hydrogen storage off-grid type comprehensive power supply system, and belongs to the technical field of clean energy power generation equipment. The system is composed of a wind generating set, a photovoltaic generating set, a lithium battery pack, a PEM fuel cell stack, a water electrolysis hydrogen production device and the like, clean energy such as wind power, light energy and hydrogen energy is used for power generation to meet the power utilization load, and the lithium battery pack and the water electrolysis hydrogen production device-fuel cell'energy storage closed loop 'is used for absorbing or supplementing electric energy with excessive power supply or shortage. According to the invention, modeling is carried out on system energy management, a system power supply state is divided into three typical power supply states based on system power supply characteristics, and a multi-state transition energy management algorithm based on fuzzy control is provided.
Absstract of: CN120866880A
The invention relates to a method for operating at least one electrochemical system (1), in particular an electrochemical system for producing hydrogen. According to the invention, at least one operating variable is modeled on an analog computer (4), said operating variable being dependent on the operation of the electrochemical plant (1) and being detectable by means of a sensor (6), the analog computer (4) reads out operating data from a control computer (3) for controlling the electrochemical system (1) and uses the operating data to reflect the actual operating state. The invention further relates to a simulation computer (4) for carrying out the steps of the method according to the invention, the simulation computer (4) being designed to carry out the simulation during ongoing operation of the electrochemical plant (1).
Absstract of: FR3161689A1
L’invention concerne un procédé de production d’hydrogène par électrolyse de vapeur d’eau, comprenant les étapes suivantes : production de vapeur d’eau (112) par chauffage d’eau liquide (204), etélectrolyse, dans une unité d’électrolyse (102), d’au moins une partie de ladite vapeur d’eau (112), pour fournir un premier flux de sortie (116) riche en hydrogène et d’un deuxième flux de sortie (118) riche en oxygène ; caractérisé en ce que la production de la vapeur d’eau est réalisée par au moins un circuit de pompe à chaleur réutilisant une partie de la chaleur d’au moins un desdits flux de sortie (116,118) pour vaporiser l’eau liquide. Elle concerne également un système (400) mettant en œuvre un tel procédé. Voir Figure 4
Absstract of: CN120866839A
The invention relates to the technical field of water electrolysis hydrogen production and oil and gas field produced water treatment, in particular to an electrolytic bath for electrolyzing oil and gas field produced water. The electrolytic bath comprises an electrolytic bath shell, an anode, a cathode, a water inlet pipeline and a water outlet pipeline, the anode comprises at least one anode plate, and the cathode comprises a cathode plate; and the anode plate has a net-shaped structure. According to the electrolytic tank, the anode with the net-shaped structure and the penetrating structure is adopted, so that the contact area between oil and gas field produced water and the anode is increased; in addition, a plurality of anode plates are connected in series to form the anode, so that the contact area between the oil and gas field produced water and the anode is further increased, and the degradation efficiency of organic pollutants in the oil and gas field produced water is improved. When the electrolytic bath is used for electrolyzing the oil and gas field produced water, the COD degradation rate of the oil and gas field produced water can reach 90% or above, and the electrolysis power consumption is 20 kwh/kg COD or below.
Absstract of: WO2024208614A1
- 27 - Method for use in controlling operation of a hydrogen production plant ABSTRACT The invention provides computer-implemented method for use in controlling operation of a hydrogen production plant, the method comprising determining a maximum available amount of energy of a predetermined energy category in a current time interval; determining a target minimum amount of the energy of the predetermined energy category to be used for hydrogen production in the current time interval; and determining hydrogen setpoints for the current time interval using the maximum available amount and the target minimum amount as constraints. Fig. 1b
Absstract of: AU2024286612A1
Disclosed are a system and method for the generation of hydrogen from a source of liquid comprising water. The system comprises a high fluid velocity electrolyzer comprising an inlet and an outlet, the inlet of the high fluid velocity electrolyzer fluidly connected to the source of liquid, and a gas fractionation system fluidly connected to the outlet of the high fluid velocity electrolyzer.
Absstract of: JP2024140857A
To provide a hydrogen production system and an operation method of the hydrogen production system capable of suppressing the production cost of hydrogen generated by electrolysis of steam in a solid oxide electrolytic cell (SOEC) and expanding the range of the amount of steam which can be electrolyzed.SOLUTION: A hydrogen production system includes a solid oxide electrolytic cell (SOEC) for electrolysis of steam, a steam generator for heating feed water to generate steam, and a combustor for burning a part of hydrogen included in the steam discharged from the hydrogen electrode of the SOEC. The steam generator is configured such that at least a part of the supply water is heated by heat exchange between at least a part of the supply water and a gas containing combustion gas generated in the combustor to generate at least a part of the steam.SELECTED DRAWING: Figure 1
Absstract of: CN120882912A
A ceramic reversible battery containing one or more elements selected from the group consisting of a perovskite metal oxide, a hydrate of the perovskite metal oxide, and a hydride of the perovskite metal oxide, at least one selected from the group consisting of the perovskite-type metal oxide, the hydrate of the perovskite-type metal oxide, and the hydride of the perovskite-type metal oxide is used as a main metal atom, and at least one selected from the group consisting of the perovskite-type metal oxide, the hydrate of the perovskite-type metal oxide, and the hydride of the perovskite-type metal oxide; the present invention is characterized by containing A (wherein A is at least one selected from the group consisting of Ba, Sr, and Ca), B (wherein B is at least one selected from the group consisting of Zr, Sn, Ce, Ti, and Hf), and M (wherein M is at least one selected from the group consisting of In, Fe, Cr, and Mn), satisfying a prescribed formula, and in that at 500 DEG C to 900 DEG C, M is at least one selected from the group consisting of In, Fe, Cr, and Mn, M is at least one selected from the group consisting of In, Fe, Cr, and Mn, and M is at least one selected from the group consisting of In, Fe, Cr, and Mn. When the catalyst is in contact with dry hydrogen having a water content of 20 ppm or less in terms of volume ratio and reaches an equilibrium state, the catalyst contains hydride ions.
Absstract of: AU2024237817A1
The present invention relates to an electrolyser system (10) comprising at least one electrolyser (20), the electrolyser (20) comprising at least one steam inlet (41) and at least one off-gas outlet (38; 39), and a turbocharger (62) for compressing off-gas from the electrolyser (20). The turbocharger (62) comprises a drive fluid inlet, a drive fluid outlet, a compression fluid inlet, a compressed fluid outlet, a compressor (13) and a turbine (12). The turbine (12) is configured to drive the compressor (13). The drive fluid outlet of the turbocharger (62) is fluidically connected to the at least one steam inlet (41) of the electrolyser (20). The at least one off-gas outlet (38; 39) of the electrolyser (20) is fluidically connected to the compression fluid inlet of the turbocharger (62). The system (10) can further can comprise a steam source fluidically connected to the drive fluid inlet of the turbocharger (62) for powering the turbine (12) using pressurised steam.
Absstract of: AU2024239221A1
This hydrogen production system is provided with: a solid oxide electrolytic cell (SOEC) that electrolyzes water vapor; a power supply device that applies a voltage equal to or greater than a thermal neutral voltage to the SOEC; and a water vapor generation device that generates at least a portion of water vapor to be supplied to the SOEC by heating water using surplus heat generation of the SOEC.
Absstract of: CN120882911A
An electrolytic cell (1) is provided with a metal support (10) and a cell main body (20). The cell main body (20) has a gas diffusion layer (5) disposed on the first main surface (12) of the metal support (10), and a hydrogen electrode layer (6) disposed on the gas diffusion layer (5). The hydrogen electrode layer (6) has nearby pores (61a) located in the vicinity of the gas diffusion layer (5), and fine particles (62) independently present in the nearby pores (61a).
Absstract of: CA3271574A1
The invention relates to the coating of anion exchange membranes (AEM) with catalytically active substances. The CCM thus obtained are used in electrochemical cells, especially for alkaline water electrolysis. It was an object of the invention to specify a process for producing a CCM by direct 5 coating which maintains the necessary planarity of the AEM and ideally avoids the use of lost films and eschews CMR substances. Swelling shall also be minimized. The process shall also be performable with fluorine-free ionomers. The invention is based on the finding that the addition of certain organic substances has the result that the AEM swells only to a small extent, if at all (antiswelling agent). It has surprisingly been found that substances suitable as antiswelling agents 10 are identifiable by their solubility behaviour, more particularly by their Hansen parameters. Fig. 4 accompanies the abstract
Absstract of: CN120866861A
The invention belongs to the technical field of water electrolysis hydrogen evolution, and particularly relates to a platinum-based intermetallic compound catalyst and a preparation method and application thereof. The catalyst is a PtxM/NC nano composite material; the catalytic active component is a platinum-based intermetallic compound PtxM; wherein M is Mo, Fe or Ga; the carrier is a nitrogen-doped carbon material; the platinum-based intermetallic compound PtxM is uniformly distributed on the surface of the carrier. The preparation method comprises the following steps: by taking a nitrogen-doped carbon carrier material as a carrier, firstly dipping the carrier in an M metal precursor solution, and annealing in inert gas to obtain an MOy/NC intermediate product; and then dipping a Pt precursor, and annealing in a reducing atmosphere to obtain the PtxM/NC catalytic material. The catalyst not only can reduce the use amount of noble metal, but also can improve the hydrogen evolution catalytic activity, and realizes the remarkable reduction of the noble metal loading amount and the synchronous optimization of the catalytic efficiency.
Absstract of: CN120866871A
The invention provides a preparation method of a Mott-Schottky junction composite material rich in sulfur vacancies, and the method comprises the following steps: firstly dissolving cobalt chloride hexahydrate, nickel chloride hexahydrate and terephthalic acid in a solvent, then putting foamed nickel to carry out solvothermal reaction to obtain NiCo-MOF, then immersing the NiCo-MOF in a thioacetamide solution to carry out vulcanization reaction, and finally obtaining the Mott-Schottky junction composite material rich in sulfur vacancies. The preparation method comprises the following steps: preparing NiCo-MOF/NiCoS from NiCo-MOF and NiCoS, and finally, reducing NiCo-MOF/NiCoS in 5% H2/Ar to obtain the Mott-Schottky junction composite material rich in sulfur vacancies. According to the invention, a unique self-supporting integrated structure is utilized to construct a Mott-Schottky heterostructure and introduce sulfur vacancies, so that the number of active sites, conductivity and stability of the material are increased, and the electro-catalytic performance of the catalyst is improved.
Absstract of: CN120866881A
The invention relates to the technical field of hydrogen production through water electrolysis, and discloses an inert gas dilution adjusting system and method for the hydrogen concentration in oxygen in all working conditions of an electrolytic bath, and the inert gas dilution adjusting system comprises a hydrogen content detection unit, a control unit and an inert gas storage unit. The hydrogen content detection unit is arranged on the anode side of the electrolytic bath and connected with a gas flow adjusting unit. The output end of the gas flow regulating unit is connected with a gas circulating inlet of the electrolytic bath, and the input end is connected with an inert gas storage unit. The hydrogen content detection unit is used for detecting the hydrogen concentration in the anode side gas of the electrolytic cell and sending the detection result to the gas flow adjusting unit. And the gas flow adjusting unit is used for adjusting the inert gas storage unit to output the inert gas to the gas circulation inlet under the condition that the hydrogen concentration exceeds a preset hydrogen concentration threshold value, so that the hydrogen concentration in the anode side gas is diluted by using the inert gas. Therefore, safe operation requirements under different working conditions can be accurately matched, and the reliability of system operation is improved.
Absstract of: CN120866872A
The invention discloses a heterostructure electrocatalyst as well as a preparation method and application thereof, the catalyst comprises a NiBP composite matrix and a Co-doped MoS2 layer, and the NiBP composite matrix is formed by loading Ni atoms on black phosphorus nanosheets obtained by electrochemical stripping; the Co-doped MoS2 layer grows on the NiBP composite matrix through a solvothermal reaction to form a heterogeneous interface; wherein the Co is dispersed in the MoS2 layer in an atomic form. According to the preparation method, Ni < 2 + > dissolved by foamed nickel is loaded on stripped black phosphorus nanosheets in situ through electrolysis to form NiBP, and Co-doped MoS2 grows on the surface of NiBP through solvothermal reaction. The catalyst shows excellent electrocatalytic hydrogen evolution performance in an alkaline electrolyte (1M KOH) and a simulated seawater electrolyte (1M KOH + 0.5 M NaCl), the overpotential is low, and the problems that black phosphorus is poor in stability and insufficient in intrinsic activity and seawater electrolysis is difficult are solved.
Absstract of: CN120867978A
The invention discloses a micro power device and method based on hydrogen nanobubbles, and belongs to the technical field of micro power devices. The device comprises a hydrogen nanobubble reactor with a built-in reaction chamber, the reaction chamber is internally covered with a thin film, a first electrode and a second electrode are attached to the surface of the thin film, and the contact ends of the first electrode and the second electrode are in a staggered finger shape and are located in the reaction chamber. The non-contact end is respectively connected with a first electrode contact pad and a second electrode contact pad, the first electrode contact pad is connected with an alternating power supply, and the second electrode contact pad is grounded; and the upper and lower ends of the reaction chamber are symmetrically connected with an electrolyte inflow channel and an electrolyte outflow channel. The device can generate nano bubbles under the normal condition of room temperature, the hydrogen-oxygen reaction on the micro-nano scale is realized, heat is converted into mechanical energy of the thin film, the mechanical energy is further transmitted to the outside, and the engineering application of the hydrogen-oxygen reaction in the micro-nano reaction device is powerfully promoted.
Absstract of: CN120866847A
The invention relates to a solid oxide electrolytic bath steam side system, a regulation and control method and an electrolytic bath system.The solid oxide electrolytic bath steam side system comprises an electrolytic bath, a steam side inlet of the electrolytic bath is connected with a steam source through a steam inlet pipe, a steam side outlet of the electrolytic bath is connected with a discharge pipe, and a heating element and a mixer are sequentially arranged on the steam inlet pipe in the steam flowing direction; a condenser and a gas-water separator are arranged on the exhaust pipe in the flowing direction of gas, a hydrogen exhaust pipe of the gas-water separator is connected with one end of a circulating pipeline, the other end of the circulating pipeline is connected to a mixer, and a circulating pump is arranged on the circulating pipeline to feed exhausted hydrogen into the mixer. And the temperature of the steam-side inlet of the electrolytic cell can meet the requirement.
Absstract of: CN120879779A
The invention relates to the technical field of power system black start, in particular to an off-grid wind power hydrogen production system black start power supply capacity calculation method and device, a storage medium and a product. The method comprises the following steps: constructing an equivalent circuit model of a primary system in the off-grid wind power hydrogen production system; performing load flow calculation according to the equivalent circuit model of the primary system to obtain a load flow calculation result, the load flow calculation result being used for indicating operation parameters of the primary system in the black start process of the off-grid wind power hydrogen production system; according to the load flow calculation result, the black-start power supply capacity is determined, and the black-start power supply capacity is the maximum power capacity needing to be provided by a power supply in the black-start process. According to the embodiment of the invention, by means of accurate model construction and rigorous mathematical calculation, the accuracy of black-start power supply capacity estimation is remarkably improved, and the calculation result is closer to the actual power consumption demand, so that the design redundancy is effectively reduced, and the project investment cost is saved.
Absstract of: CN120866856A
The invention discloses a low-temperature plasma modified efficient hydrogen evolution catalyst. The method comprises the following steps: preparing a nano core-shell structure catalyst with uniform size through liquid-phase synthesis and layer-by-layer self-assembly, and introducing vacancies, defects and other unsaturated active sites on the surface of the nano core-shell structure catalyst; and then nitrogen and the like are used as a reaction atmosphere of a plasma chamber, and the surface of the catalyst is treated through a low-temperature plasma technology for catalyst performance regulation and control. The method has the advantages of simple process, low energy consumption, no need of adding extra chemical reagents, environmental friendliness and the like, and has a good application prospect. The preparation and regulation method of the electrocatalyst can be suitable for application of an electrocatalytic efficient hydrogen evolution catalyst. The material regulated and controlled by the plasma has higher current density and lower overpotential in hydrogen evolution reaction, and shows more excellent electrocatalytic activity and stability.
Absstract of: WO2025223961A1
The invention at hand relates to an electrolysis cell, a process for the production of hydrogen by electrolysis and a cell stack comprising a multitude of the electrolysis cells, wherein each cell comprises an anode compartment, a cathode compartment and a separator, wherein a sealing member seals the electrolysis cell volume from the surrounding, the electrolysis cell electrolyte feed and/or electrolysis cell electrolyte outlet are located in the cell volume and comprise means for reducing stray currents.
Nº publicación: AU2023443530A1 30/10/2025
Applicant:
PLUG POWER INC
PLUG POWER INC
Absstract of: AU2023443530A1
A method for forming a recombination layer includes, for example, an ionomer and a nanocrystal catalyst disposed in the ionomer. A method for forming the recombination layer may include, for example, providing an ionomer dispersion, providing a compound having a catalyst having a charge, adding the catalyst in the compound to the ionomer to form a mixture, reducing the catalyst in the compound to a metal catalyst in the ionomer, and forming the mixture with the metal catalyst into a recombination layer for a proton exchange membrane.
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