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1017
results.
Updated on
15/11/2026 [08:03:00]
Results 25 to 50 of 1017
Absstract of: WO2026229511A1
The present invention relates to an electrically isolating insert (6) positioned in a bipolar plate (4) for preventing shunt current in an electrolyser not contributing to electrochemical production of the desired product(s), such as hydrogen and oxygen in an alkaline water electrolyser. The benefit of this invention is to minimise the amount of shunt current lost to anything else than producing the desired product(s), in other words increasing the production volume/efficiency of the electrochemical reactions. Modelling and experimental results from industrial stacks confirm that invention significantly improves current efficiency.
Absstract of: WO2026227109A1
The present disclosure relates to an electrolysis device for the oxidation of ammonia and generation of hydrogen. Specifically, disclosed herein is electrolytic cell comprising: an anode, comprising: an oxide of nickel, and copper and/or sulfur, on metallic nickel, a cathode, an anolyte in contact with the anode, a catholyte in contact with the cathode, and a semipermeable membrane or ion bridge disposed between the anode and the cathode, wherein the semipermeable membrane or ion bridge separates the anolyte and the catholyte.
Absstract of: WO2026230523A1
Provided is an ammonia production device capable of producing ammonia efficiently. The present invention relates to an ammonia production device comprising: an anode chamber which has an anode electrode having a water electrolysis catalyst and to which water is supplied; a cathode chamber which has a cathode electrode and to which gaseous nitrogen is supplied; and a diaphragm provided between the anode chamber and the cathode chamber. The cathode electrode has a free oxygen removal component for removing free oxygen from the cathode chamber, and an ammonia synthesis catalyst. Ammonia is synthesized from a hydrogen source and the nitrogen in the cathode chamber in the presence of the ammonia synthesis catalyst.
Absstract of: US20260348030A1
Disclosed is an oxygen evolution reaction (OER) catalyst material comprising a quaternary ruthenium doped oxide of formula Rux(CrNiTiCo)1−xO2, wherein x is between 0.20-0.75. The quaternary ruthenium doped oxide crystallizes in a pure phase of tetragonal rutile-structure based on a RuO2 crystal lattice. The quaternary-doped ruthenium oxide (RuO2) catalyst materials of the present disclosure have improved stability as compared to undoped ruthenium oxide catalysts for oxygen evolution reactions (OER) in water electrolysis devices.
Absstract of: US20260346236A1
0000 Provided is a catalyst-supporting honeycomb structure capable of achieving both an improved conversion of ammonia and an improved life of a catalyst. A catalyst-supporting honeycomb structure (1) includes a ceramic honeycomb structure (2), a catalyst layer (3) that is formed in a flow channel (2a ) of the honeycomb structure (2) and decomposes ammonia, and electrodes (4a, 4b ) each formed on a lateral surface of the honeycomb structure (2). A current is applied to the honeycomb structure (2).
Absstract of: US20260348031A1
0000 A membrane electrode assembly (MEA) for producing hydrogen in a water electrolyser is provided. The MEA comprises a polymer electrolyte membrane (REM), a cathode comprising a cathode catalyst on a first side of the REM, an anode comprising an anode catalyst on a second side of the REM, and a platinum-ruthenium (Pt—Ru) catalyst located on the second side of the REM for electrochemically converting hydrogen gas into hydrogen cations in use. The Pt—Ru catalyst is in electrical contact with the anode and ionic contact with the REM.
Absstract of: US20260348028A1
0000 A chemical looping-based membrane-free water electrolysis hydrogen production electrolyzer and an operating method thereof are provided. The electrolyzer includes a first end plate and a second end plate connected respectively with an external power supply, and at least one bipolar plate is disposed between the two end plates; an electrolysis cell is formed between the two end plates and the bipolar plate, and between two adjacent two bipolar plates; each electrolysis cell is internally provided with a functional assembly including a bifunctional electrode, a porous separator and an oxygen carrier electrode sequentially attached. The collaborative use of the bifunctional electrode and the oxygen carrier electrode can catalyze hydrogen evolution and oxygen evolution under different working conditions, adapting to power fluctuation and intermittence of the renewable energy and having the application potential of off-grid hydrogen production.
Absstract of: US20260348027A1
0000 Provided is a hydrogen gas production system that can produce, at a high recovery rate, hydrogen gas having a deuterium D content equal to or greater than that of raw material water. A hydrogen gas production system includes a first tank to contain raw material water including heavy water, an electrolysis device configured to electrolyze the raw material water to generate a hydrogen gas, a reservoir to store the hydrogen gas, a liquid supply device, and a gas supply device. The liquid supply device is controlled to replenish the electrolysis device with the raw material water from the first tank as the amount of the raw material water remaining in the electrolysis device decreases. The gas supply device is controlled to supply the hydrogen gas to the reservoir continuously before and after replenishing of the electrolysis device, and the reservoir stores the hydrogen gas.
Absstract of: US20260348033A1
0000 A hydrogen generator with hydrogen leakage self-aware function comprises an electrolytic module, an integrated passageway device, a condensate filter, a humidification cup, a housing, an internal hydrogen sensing component, and a monitoring device. The electrolytic module is configured to electrolyze an electrolyzed water to generate a gas comprising hydrogen. The integrated passageway device comprises gas inlet passageway and a gas outlet passageway. The condensate filter is configured for filtering the gas comprising hydrogen. The humidification cup is configured for humidifying the gas comprising hydrogen. The gas comprising hydrogen flows through the condensate filter and the humidification cup by the way of the integrated passageway device. The internal hydrogen sensing component is configured in the housing for sensing the hydrogen concentration in the housing to generate an internal sensing result. The monitoring device is coupled to the internal hydrogen sensing component. The monitoring device controls the operation of the hydrogen generator according to the internal sensing result to avoid the hydrogen generator from the problem caused by hydrogen.
Absstract of: US20260347270A1
Carbon-negative fertilizers and methods for making and using the same are provided. Aspects of the methods include reacting rock phosphorus with sulfuric acid (H2SO4) to produce phosphoric acid (H3PO4) and phosphogypsum (CaSO4·2H2O); converting the phosphogypsum to a calcium carbonate-containing solid product and thereby generating an aqueous sulfate; electrolyzing the aqueous sulfate to produce hydrogen (H2); synthesizing ammonia (NH3) from the hydrogen; and producing an ammonium salt from the ammonia. Also provided are systems for practicing the methods, as well as fertilizers produced by the methods.
Absstract of: US20260351646A1
0000 A hydrogen electrode-solid electrolyte layer composite according to the present disclosure includes a hydrogen electrode having pores, and a solid electrolyte layer in contact with the hydrogen electrode. The hydrogen electrode and the solid electrolyte layer each contain a metal oxide, the metal oxide has a perovskite structure and is represented by a formula (1) A
Absstract of: US20260351643A1
The purpose of the present invention is to provide a compound capable of producing a polymer having excellent alkali durability, a polymer including the compound as a monomer, an electrolyte membrane having excellent alkali durability using the polymer, and a fuel cell and an electrolysis apparatus using the electrolyte membrane. A compound represented by the following Formula (1) and a polymer including the compound as a monomer. (X1—)2Ar1(-L1-RN+)n(Ac−)n/c (1) Where, X1 is a hydrogen atom or a halogen atom, Ar1 is a 2+n valent group having an aromatic ring, L1 is a single bond or divalent hydrocarbon group, RN+ is a group having a ring structure containing N+, Ac− is a c valent counter anion, n is an integer of 1 or more, c is 1 or 2.
Absstract of: US20260348936A1
0000 The invention relates to a method for automatically quantifying dihydrogen generated by a sample of mineral or sedimentary parent rock containing a metal compound (such as iron), characterized in that a water reduction reaction is carried out in the presence of the sample and water vapor (2) at a temperature of approximately 1200 °C, and the amount of dihydrogen generated by the sample during this reaction is determined in order to qualify the parent rock as a potential source of natural hydrogen. The invention also relates to a device for carrying out said method.
Absstract of: US20260348022A1
0000 Proposed is a water electrolysis system including a water electrolysis device, a hydrogen (H<2>) removal device, and an oxygen (O<2>) removal device. The hydrogen (H<2>) removal device removes hydrogen (H<2>) from an oxygen (O<2>) stream, and the oxygen (O<2>) removal device removes oxygen (O<2>) from a hydrogen (H<2>) stream. By removing hydrogen (H<2>) and oxygen (O<2>), respectively, from each gas stream, a possibility of an explosion accident during movement of the gas stream may be significantly reduced, and purity requirements for various industrial gases may be satisfied without a separate purification process.
Absstract of: WO2026230257A1
Provided is a hydrogen transport system that effectively utilizes surplus power from a distributed energy source. A hydrogen transport system according to the present disclosure comprises a hydrogen production apparatus and a trunk hydrogen pipeline. The hydrogen production apparatus produces hydrogen by using surplus power from a distributed energy source. The trunk hydrogen pipeline is disposed alongside a plurality of power transmission towers and transports the hydrogen produced by the hydrogen production apparatus. With this configuration, the surplus power from the distributed energy source can be utilized effectively.
Absstract of: AU2025375397A1
An electrochemical process and apparatus for producing hydrogen and a dehydrogenated product from partial oxidation of an alcohol. The hydrogen may be utilised in a hydrogen fuel cell to generated electricity, e.g., to power a vehicle.
Absstract of: AU2025378114A1
The invention provides an integrated system for preparing a dehydrogenated product from an alcohol, the integrated system comprising a heat integration system for heat transfer from at least one heat source to the at least one heat sink. The at least one heat sink includes a feed stream comprising an alcohol and/or an electrolyser system having an electrochemical cell configured for carrying out a partial dehydrogenation process to produce a product stream comprising hydrogen and a co-product stream comprising a dehydrogenated product from the alcohol of the feed stream and/or an infrastructure for handling and/or storing the co- product stream. The at least one heat source includes a hydrogen fuel cell for generating electricity from the product stream of the electrolyser system, wherein operation of the hydrogen fuel cell generates heat, and/or the electrolyser system, wherein the electrolyser system is configured to operate the electrochemical cell so as to generate heat.
Absstract of: AU2025376793A1
An electrochemical process and apparatus for generating electricity from an alcohol. Electricity is generated in a hydrogen fuel cell utilising hydrogen produced by partial dehydrogenation of the alcohol in an electrolyser.
Absstract of: AU2025260572A1
The invention relates to a method for producing hydrogen via steam electrolysis, the method comprising the following steps: - producing steam (112) by heating liquid water (204); and - electrolysing, in an electrolysis unit (102), at least a portion of the steam (112) to provide a first output stream (116) rich in hydrogen and a second output stream (118) rich in oxygen; characterised in that the steam is produced by at least one heat pump circuit reusing a portion of the heat from at least one of the output streams (116, 118) in order to vaporise the liquid water. The invention also relates to a system (400) implementing such a method.
Absstract of: AU2025257207A1
The present invention relates to a molded catalyst for ammonia decomposition and a manufacturing method therefor and, more specifically, to an economical method for manufacturing a molded catalyst for ammonia decomposition and a molded catalyst manufactured thereby, wherein a catalyst carrier is prepared by coating various molded bodies such as beads, pellets, honeycombs, and the like with lanthanum and cerium and then ruthenium is supported on the catalyst carrier to produce an ammonia decomposition catalyst as a catalyst with superior activity in an ammonia decomposition reaction, whereby the strength of the coating can be sufficiently expressed, the catalytic activity can be improved or maintained even with a small amount of a catalytically active material (ruthenium), the loss of a coating solution can be reduced during a catalyst coating process, and the molded catalyst can be manufactured without a separate powder catalyst manufacturing process.
Absstract of: US20260348032A1
0000 Ti-RuO2 acidic oxygen evolution catalyst based on strain modulation strategy and preparation method thereof, the preparation method comprises the following steps: S1. mixing TiO<2 >with an acidic solution, and adjusting a pH value of the solution, and then performing dispersion to obtain a TiO<2 >dispersion solution; S2. adding a soluble Ru salt into the TiO<2 >dispersion solution under ice bath conditions, and stirring to obtain a mixed solution; S3. mixing the mixed solution with an alkaline solution, stirring the mixture, adjusting a pH value of the mixture, and then freeze-drying the mixture to obtain a precursor; and S4. pyrolyzing the precursor immediately at a high temperature, and then taking out the precursor promptly, and cooling the precursor to obtain a s-Ti-RuO<2 >acidic oxygen evolution catalyst based on a strain modulation strategy. The mass activity of the catalyst obtained herein at 1.53 V is 6 times that of commercial RuO<2>.
Absstract of: AU2025250936A1
Solid Oxide Electrolysis Cell System The present invention relates to a Solid Oxide Electrolysis Cell (SOEC) system for industrial hydrogen, carbon monoxide or syngas production comprising SOEC core modules with at least one SOEC core and a plurality of SOEC stacks, wherein the SOEC core modules are adapted to be stacked on top of each other in two or more layers to optimize the plot area of the SOEC system.
Absstract of: EP4835141A1
The invention concerns a process for producing hydrogen by electrolysis of water in an electrolysis plant and the respective electrolysis plant comprising multiple electrolysis stacks (17), each electrolysis stack comprising multiple electrolysis cells. A water polishing cycle (25, 7, 8,9, 11, 13, 16) comprises an ion exchange unit (10) comprising at least two mixed bed ion exchangers (10A, 10B) containing a mixture of two granular materials, an anion resin and a cation resin. According to the invention, anion and cation resin are regenerated on site by being automatically transported (33, 34, 35) from the mixed bed ion exchanger to be regenerated by a stream of demineralized water to a regeneration unit (30). After finishing regeneration or after emptying the mixed bed ion exchanger refilling the mixed bed ion exchanger (10A, 10B), the regenerated anion resin and regenerated cation resin are transported by demineralized water back to the mixed bed ion exchanger (10A, 10B) in regeneration.
Absstract of: EP4835161A1
The object of the present disclosure is to provide a polymer electrolyte membrane with suppressed curling and with suppressed hydrogen crossover, and a membrane electrode assembly, a water electrolyzer and a membrane electrode assembly production method.The polymer electrolyte membrane of the present disclosure is a polymer electrolyte membrane, which comprises: a first layer that contains a first fluorinated polymer having ion exchange groups and a platinum-containing material, and a second layer that contains a second fluorinated polymer having ion exchange groups; wherein the concentration of a platinum-containing material in the second layer is lower than the concentration of the platinum-containing material in the first layer; the ion exchange capacity of the first fluorinated polymer is higher than the ion exchange capacity of the second fluorinated polymer; and the polymer electrolyte membrane further has a reinforcing member provided on the surface side on the first layer side of the polymer electrolyte membrane relative to the center position in the thickness direction of the polymer electrolyte membrane.
Nº publicación: EP4835135A1 04/11/2026
Applicant:
SOLVAY [BE]
Solvay SA
Absstract of: EP4835135A1
0001 Process for producing ammonium carbonate ((NH<4>)<2>CO<3>) and sodium carbonate (Na<2>CO<3>) in an electrolyzer comprising an hydrogen depolarized anode, by feeding a base chamber of the electrolyzer with an aqueous solution comprising ammonium chloride (NH<4>Cl), sodium chloride (NaCl), dissolved carbon dioxide (CO<2>) and obtaining an outlet solution from the base chamber comprising ammonium carbonate ((NH<4>)<2>CO<3>) and sodium carbonate (Na<2>CO<3>).
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