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905
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Última actualización
02/04/2026 [07:04:00]
Resultados 25 a 50 de 905
Resumen de: WO2026060686A1
The present application relates to the technical field of hydrogen production via water electrolysis, and specifically relates to a method for preparing a proton exchange membrane comprising a hydrogen barrier coating. The method comprises the following steps: S1, mixing an inorganic filler with a functional resin, adding a solvent, and stirring same to obtain a slurry; S2, coating a surface of a proton exchange membrane with the slurry, the wet thickness of the resulting coating being 10-100 μm, and drying the wet coating to obtain a dried proton exchange membrane; and S3, performing a heat treatment on the dried proton exchange membrane to obtain a proton exchange membrane comprising a hydrogen barrier coating. The present application further relates to a proton exchange membrane comprising a hydrogen barrier coating, a membrane electrode, and a device for hydrogen production via water electrolysis. The hydrogen barrier coating described herein can physically block hydrogen gas from permeating through the proton exchange membrane, thereby improving the efficiency of a water-electrolysis membrane electrode made of the proton exchange membrane, reducing the content of hydrogen in oxygen at an anode side, and further improving the service life and safety of the device for hydrogen production via water electrolysis.
Resumen de: EP4716049A1
The invention relates to a water electrolysis installation (P) drawing power from an electrical network (NET) and providing an hydrogen production rate, the installation (P) comprising a plurality of clusters (C<sub>i</sub>). The installation (P) comprises a supervision unit (SU) defining, repetitively at successive sampling periods (k), the operating mode of the clusters (Ci) and a current setpoint (x<sup>i</sup><sub>k</sub>) of each active cluster (C<sub>i</sub>). The supervision unit (SU) comprises a candidate module (CM) configured to establish, during each sampling period, a candidate list (SL) consisting of all cluster pools capable of satisfying a production constraint and an optimization module (COM) configured to calculate, during each sampling period (k), for each cluster pool of the candidate list (SL), optimal current setpoints of the clusters and an associated efficiency value of said pool, the optimal current setpoints optimizing an objective function under the production constraint.
Resumen de: CN121100420A
Gas pressure equalization systems (400-401) and methods of operation for electrosynthetic or electrical energy liquid gas cells or cell stacks (210) are disclosed in one example. The gas pressure equalization systems (400-401) include a first pressure equalization tank (410) for partially containing a first liquid (470) and a first gas. The first gas is positioned above a first liquid level (471). A first gas conduit (430) is provided for transporting the first gas between the battery or battery stack (210) and the first pressure equalization tank (410). In another example, a second pressure equalization tank (420) may additionally be provided for partially containing a second liquid (473) and a second gas positioned above a second liquid level (472). A second gas conduit (440) is then provided for conveying the second gas between the cell or cell stack (210) and the second pressure equalization tank (420).
Resumen de: WO2025016765A1
The invention relates to a water treatment loop (20) for connection to at least one electrolysis stack (8) of a hydrogen producing electrolysis plant (40), comprising: a water inlet section (21) into which water drained from at least one electrolysis stack (8) can be recirculated; an ion exchanger (2) arranged downstream of the water inlet section (21); a water outlet section (22) arranged downstream of the ion exchanger (2) and adapted to supply water treated by the ion exchanger (2) to said at least one electrolysis stack (8); and a catalytic surface (23) arranged downstream of the water inlet section (21) and upstream of the ion exchanger (2), so that water recirculated via the water inlet section (21) is made to contact the catalytic surface (23) prior to interaction with the ion exchanger (2), whereby oxidants such as peroxides are at least partly removed from the water, prior to being treated by the ion exchanger (2).
Resumen de: WO2024236080A1
There is provided a membrane electrode assembly (MEA) for an electrochemical devices, such as for fuel cells and electrolyzers, particularly for polymer electrolyte membrane (PEM) fuel cells, said membrane electrode assembly comprising a composite electrolyte membrane comprising a reinforced electrolyte layer comprising at least one porous support, the porous support being at least partially imbibed with a first ion exchange material; and a first electrode comprising a reinforced electrode layer comprising a porous support, the porous support being at least partially imbibed with a first catalyst and a second ion exchange material, wherein the composite electrolyte membrane is in contact with the first electrode. Also provided is a composite electrolyte membrane, which can be used in the manufacture of the membrane electrode assembly and a fuel cell and electrolyzer comprising such a membrane electrode assembly. A method for the manufacture of the membrane electrode assembly, and a membrane electrode assembly obtainable by such a method are also disclosed.
Resumen de: WO2024234026A1
The invention relates to an electrolysis cell (1) for alkaline hydrogen electrolysis, comprising an electric anode (2), an electric cathode (3), a separation layer (4) which is substantially permeable to ions, is electrically insulating, is preferably in the form of a membrane or a diaphragm and is placed between the anode (2) and the cathode (3), and two electrically conductive half-shells (5, 5') which are electrically insulatingly connected to one another at their edges, wherein: the anode (2) is electrically conductingly connected to the first half-shell (5), and the cathode (3) is electrically conductingly connected to the second half-shell (5'); the anode (2), the cathode (3) and the separation layer (4) are placed between the two half-shells (5, 5') such that an anode chamber (6) and a cathode chamber (7) are formed; each of the half-shells comprises at least one inflow pipe (8, 8') and at least one outflow pipe (9, 9') for a medium; and each of the half-shells (5, 5') comprises a metal support frame (10, 10') for absorbing compressive forces, and a substantially flat outer skin (11, 11'), the support frame (10, 10') and outer skin (11, 11') being integrally bonded together, preferably welded together.
Resumen de: TW202446996A
The present disclosure relates to an electrolysis cell comprising a porous transport layer which comprises at least one metallic support layer and at least one macroporous layer which comprises titanium particles deposited on the at least one support layer so that the titanium particles are at least partly covered with at least one conductive titanium suboxide surface layer.
Resumen de: CN121152900A
A water and carbon dioxide co-electrolysis system (1) comprises an anion exchange membrane (AEM) cell (2) having at least one AEM cell (2c) comprising a cathode (8), an anode (12), and an AEM membrane (16) separating the cathode from the anode, and an anolyte circuit (18) in which the AEM membrane (16) is separated from the anode, an anolyte is fluidly connected to the anode (12) via an anolyte inlet (14i) and an anolyte outlet (14o) of the anode (12). The CO2 and H2O co-electrolysis system further comprises a mineralization system (3) comprising a mineralization unit (27) connected to the anolyte circuit (18) and comprising a mineralized metal configured to react with carbonate and bicarbonate ions circulating in the anolyte circuit (18) to form a metal carbonate.
Resumen de: GB2644246A
A catalytic reactor comprising include a housing coupled with a feedstock source to receive a flow of ammonia in gaseous form that can flow through the catalytic reactor. The housing further comprises a catalyst comprising nickel or ruthenium nanoparticles and a heating agent configured to increase in temperature when exposed to a magnetic field, furthermore a coil is positioned around the housing to provide the magnetic field to heat the metal-based catalyst using magnetic induction to be within the predefined temperature range. When exposed to the catalyst at the appropriate temperature the ammonia is decomposed to one or more reaction products.
Resumen de: CN121358894A
Proton exchange membranes are described. The proton exchange membrane includes: a reinforcing membrane; a continuous non-porous hydrogen recombination catalyst coating, the continuous non-porous hydrogen recombination catalyst coating comprising a mixture of a hydrogen recombination catalyst and a proton conducting ionomer; and a continuous non-porous cross-linked polyelectrolyte multilayer coating, the continuous non-porous cross-linked polyelectrolyte multilayer coating comprising alternating layers of a polycationic polymer and a polyanionic polymer. Catalyst coated membranes incorporating proton exchange membranes and methods of making proton exchange membranes are also described.
Resumen de: EP4715092A2
According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0 ≦ A ≦ B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or / and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.
Resumen de: CN121175118A
Disclosed herein is a catalyst comprising a multi-component alloy having a single-phase structure. The multi-component alloy includes iridium, ruthenium, or a combination thereof in combination with at least four metals, wherein the at least four metals do not include platinum group metals. Methods of making the catalyst are also provided herein.
Resumen de: EP4715089A1
Ahydrogen generator includes a water tank configured to contain electrolysis water, an electrolysis module disposed in the water tank and configured to electrolyze the electrolysis water to generate a gas comprising hydrogen, a humidifying module having a humidifying chamber configured to contain supplement water, a diffusing device disposed in the humidifying module and configured to diffuse the gas comprising hydrogen, and a sound-proof shield disposed in the humidifying module and including a sound-proof cavity, a connecting tube communicating the water tank and the diffusing device, and a gas outlet. The gas comprising hydrogen flows through the connecting tube and the diffusing device to the supplement water in the sound-proof cavity, and then passes through the gas outlet to the humidifying chamber. The sound-proof shield blocks sound generated by the gas comprising hydrogen flowing in the device, thereby improving user experience.
Resumen de: GB2644239A
A catalytic reactor 200 comprising a housing 202 coupled with a feedstock source configured to receive a flow of an inorganic compound in the gas phase that flows through the reactor. The housing includes a metal-based catalyst 106 selected to decompose the inorganic compound into one or more reaction products within a predefined temperature range. The metal based catalyst includes a heating agent that increases in temperature when exposed to a magnetic field. A coil 210 is positioned around the housing to provide the magnetic field to heat the metal-based catalyst using magnetic induction to be within the predefined temperature range. The amplitude of the magnetic field provided ranges from between 10 to 100 mT. Preferably the temperature range is between 300 and 700 °C.
Resumen de: US20260074250A1
A corrosion-resistant system, a carbon-free power generation system, and a fuel cell system are provided. The corrosion-resistant system includes an ammonia supply unit; a first conduit connected to the ammonia supply unit; an ammonia decomposition unit comprising a chamber connected to the first conduit; and a second conduit connected to the chamber, wherein an operating temperature of the chamber is 410° C. or lower, the first conduit and the chamber comprise at least one selected from the group consisting of carbon steel, low alloy steel, stainless steel and a nickel-based alloy, and the second conduit comprises a nickel-based alloy (NT) satisfying Equation 1: T≤15 μm.
Resumen de: US20260070031A1
An ammonia decomposition reactor, a hydrogen production apparatus and a method for producing hydrogen are provided. The ammonia decomposition reactor may include a first chamber and a second chamber, wherein an operating temperature of the first chamber is 410° C. or lower, the first chamber includes at least one selected from the group consisting of carbon steel, low alloy steel, stainless steel, and a nickel-based alloy, and the second chamber includes a nickel-based alloy (NT) satisfying Equation 1 below.T≤15μmEquation1
Resumen de: US20260070782A1
Disclosed are an ammonia supply system, a hydrogen production system, a carbon-free power generation system and a fuel cell system. The ammonia supply system includes an ammonia supply unit; an ammonia demand unit; a connection line that connects the ammonia supply unit and the ammonia demand unit; a hydrogen supply unit; and one or more first hydrogen supply lines that connect the hydrogen supply unit and the connection line, and are configured to supply a hydrogen gas stream, wherein the connection line includes a first pipe controlled to an average temperature of 410° C. or lower and a second pipe controlled to an average temperature of greater than 410° C., and the second pipe includes a nickel-based alloy (NT) satisfying Equation 1 below.T≤15µmEquation1
Resumen de: CN120476490A
The present invention provides a reinforced ion conducting membrane comprising: (a) a reinforcement layer comprising a porous polymer structure; and (b) a polymer ion conducting membrane material impregnated within the porous polymer structure; wherein the porous polymer structure comprises a polymer backbone based on a nitrogen-containing heterocyclic ring, and the polymer ion-conducting membrane material has a transition temperature T alpha in the range of from 60 DEG C to 80 DEG C and including end values.
Resumen de: CN120936421A
A method for generating and treating a two-phase effluent from one or more pressurized electrolysis cell stacks adapted to electrolyze water into hydrogen and oxygen, whereby a pump supplies a cathodic electrolysis fluid stream from a first gas-liquid gravity separator vessel to the electrolysis cell stack, whereby another pump supplies an anode electrolysis fluid flow from a second gas-liquid gravity separator vessel to the electrolysis cell stack, and whereby at least one cyclone gas-liquid separator receives a combined effluent from the cathode electrolysis chamber and/or receives a combined effluent from the anode electrolysis chamber, these combined effluents are respectively located within respective gas-liquid gravity separator containers, whereby further, the at least one cyclonic gas-liquid separator separates the gas from the liquid within the gas-liquid gravity separator container along a substantially horizontal cyclonic axis of rotation. An electrolytic cell system is also provided.
Resumen de: EP4715093A1
The present invention relates to a sealing device (100) for sealing a membrane electrode assembly (210) of an electrolyser cell (200) against one or more bipolar plates (220) of the electrolyser cell (200). The sealing device (100) comprises a seal (110), which extends in a width direction (101) between two opposite seal surface sides (111, 112) for sealing against respective seal counter-surfaces (211, 221) of the electrolyser cell (200) and further comprises a seal lateral side (113), which is provided laterally of the seal surface sides (111, 112). The sealing device (100) comprises further at least one limiter (120) for limiting a compression of the seal (110) in the width direction (101) by engaging two opposite limiter surface sides (121, 122) of the limiter (120) with the seal counter-surfaces (211, 221). The limiter (120) comprises further a limiter lateral side (123), which is provided laterally of the limiter surface sides (121, 122). At least a part of the limiter lateral side (123) is mechanically connected to at least a part of the seal lateral side (113).
Resumen de: WO2026058474A1
This water electrolysis system is provided with: a hydrogen production device unit that comprises a water electrolysis stack unit that includes one or more water electrolysis stacks that produce oxygen and hydrogen through an electrolytic reaction; a power source that supplies direct-current power to the one or more water electrolysis stacks; a pure water supply piping system that supplies pure water; an oxygen outflow piping system that causes oxygen produced by the water electrolysis stack unit to flow out to the outside; a hydrogen outflow piping system that causes hydrogen produced by the water electrolysis stack unit to flow out to the outside; an insulation unit that electrically insulates between the hydrogen production device unit and the ground; electrically insulating first insulated piping that is disposed in part of the pure water supply piping system; electrically insulating second insulated piping that is disposed in part of the oxygen outflow piping system; and electrically insulating third insulated piping that is disposed in part of the hydrogen outflow piping system.
Resumen de: WO2025017013A1
The present invention relates to an electrode comprising or consisting of an electrocatalyst, the electrocatalyst comprising a metal boride, wherein the metal boride comprises at least one element M1 selected from Ti, Zr and Hf, and at least one element M2 selected from Co, Ni, Ru, Rh, Pd, Ir and Pt; and the metal boride contains more than 10 atomic % of M2. The present invention also provides an electrode obtainable by subjecting the electrode to an electrocatalytic reaction. It also relates to an electrolyzer comprising said electrode. It is also concerned with a method for producing an electrode, and use of an electrode in an electrocatalytic reaction.
Resumen de: CN119020815A
The invention provides an electrode and a preparation method and application thereof, and belongs to the technical field of functional materials. The electrode comprises a substrate, a nickel transition layer wrapping the surface of the substrate and a porous active layer wrapping the surface of the nickel transition layer, the porous active layer is made of nickel-based alloy or cobalt-based alloy, and alloy elements in the nickel-based alloy and the cobalt-based alloy comprise zinc. The electrode provided by the invention has the characteristics of high activity, high stability and high binding force when being used for producing hydrogen by electrolyzing water.
Resumen de: US20260078510A1
According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0≤A≤B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or/and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.
Nº publicación: CN121695856A 20/03/2026
Solicitante:
精工爱普生株式会社
Resumen de: US20260077337A1
A photocatalyst has a perovskite type crystal, the photocatalyst has, present on a surface, a stepped structure including a terrace and a step, and an occupancy ratio of a projected area of the stepped structure to a total projected area in an observation image of the surface is 20% or more. It is preferable that the terrace is formed of a {100} facet, and the step is formed of the {100} facet or a {110} facet.
BOPI
Sede Electrónica
