Absstract of: WO2026132802A1
ANODE CATALYST LAYER According to the present invention there is provided an anode catalyst layer for a polymer electrolyte membrane electrolyser. The anode catalyst layer comprises an oxygen evolution reaction (OER) electrocatalyst and an ion-conducting polymer. The oxygen evolution reaction electrocatalyst comprises an iridium-containing material supported on an inorganic oxide support material. The anode catalyst layer comprises a loading of iridium of less than 0.60 mgIr/cm2. The anode catalyst layer has a mean average cross-sectional thickness of ≥3.0 μm and ≤10 μm. The anode catalyst layer comprises pores having a total pore volume, wherein the pores comprise first pores having a pore diameter in a range of 50 nm to 500 nm, wherein the first pores have a pore volume of at least 30% of the total pore volume of the pores in the anode catalyst layer, as measured by mercury intrusion porosimetry.
Absstract of: WO2026134882A1
The present invention relates to a porous electrode with an increased specific surface area and a method for manufacturing same, and to: a method for manufacturing a water electrolysis electrode having an apparent specific gravity of 2.0 g/cm3 to 2.5 g/cm3, the method comprising a step for filling a mold manufactured in the shape of an electrode with metal powders including a filament-shaped nickel powder, a step for applying pressure to the filled metal powders to manufacture a compressed molded body, and a step for heat-treating the compressed molded body in a reducing atmosphere; and a water electrolysis electrode manufactured by the method of the present invention, wherein the water electrolysis electrode has an apparent specific gravity of 2.0 g/cm3 to 2.5 g/cm3.
Absstract of: WO2026134430A1
The present invention relates to a polymer electrolyte membrane, a method for manufacturing same, a membrane-electrode assembly comprising same, a water electrolysis cell, and a fuel cell. The polymer electrolyte membrane comprises: an ion conductor including a substituent selected from a sulfonic acid group, an ammonium group, or a combination thereof; and nanocellulose. The polymer electrolyte membrane exhibits excellent mechanical properties, ease of impregnation with the ion conductor, thermal stability, moldability, biodegradability, gas permeability, and the like.
Absstract of: WO2026134883A1
The present invention relates to a multi-layered water electrolysis electrode and a manufacturing method therefor. The water electrolysis electrode comprises: a first porous nickel support; a sintered metal layer; and a second porous nickel support. The method for manufacturing a water electrolysis electrode comprises the steps of: applying metal powder to a first porous nickel support; laminating a second porous nickel support on the surface to which the metal powder is applied, to manufacture a laminate; compressing the laminate; and heat-treating the compressed laminate in a reducing atmosphere. The method for manufacturing a water electrolysis electrode comprises the steps of: providing a catalyst-coated first porous nickel support and a catalyst-coated second porous nickel support; compressing and molding metal powder and then heat-treating same in a reducing atmosphere to manufacture a sintered metal layer; and placing and compressing the sintered metal layer between the catalyst-coated first porous nickel support and the catalyst-coated second porous nickel support.
Absstract of: WO2026135384A1
The present invention relates to: an electrode for water electrolysis comprising an electrolyte membrane and an electrode layer formed on at least one surface of the electrolyte membrane, wherein the electrode layer has a surface roughness (Sa) of 30 nm to 90 nm and includes one or more cracks having a maximum width of 1 μm to 5 μm on the surface thereof; and a structure for forming an electrode for water electrolysis, the structure comprising a transfer substrate and an electrode layer formed on at least one surface of the substrate, wherein the electrode layer comprises iridium oxide particles and an ionomer, and has an adhesion energy of 60 aJ or more as measured by atomic force microscopy with respect to the surface of the electrode layer.
Absstract of: WO2026134834A1
Exemplary embodiments of the present invention may provide: a performance evaluation device for an electrochemical stack, whereby performance evaluation tests for the electrochemical stack can be easily performed; and a performance evaluation system including same.
Absstract of: WO2026134805A1
A stream supply apparatus according to an embodiment of the present invention comprises: a steam supply source which supplies steam; a main tank which stores steam supplied from the steam supply source and supplies the stored steam to an electrolytic hot box including a stack that electrolyzes the steam; an auxiliary tank which is provided separately from the main tank and has a pair of bypass valves for bypassing and storing steam supplied from the steam supply source; and a flow rate control valve which is provided on the main line between the main tank and the electrolytic hot box to control the flow rate of steam supplied from the main tank to the electrolytic hot box, wherein the pair of bypass valves may include: a first bypass valve provided on a first bypass line that is branched from the main line between the steam supply source and the main tank and is connected to the auxiliary tank; and a second bypass valve provided on a second bypass line that is branched from the main line between the main tank and the flow rate control valve and is connected to the auxiliary tank.
Absstract of: WO2026132040A1
An electrolytic cell comprising an electrolytic reaction chamber, the electrolytic reaction chamber comprising At least one electrode assembly comprising at least one cathode, at least one anode and at least one ion-permeable layer arranged between the at least one cathode and the at least one anode; and a channel system comprising at least one electrolyte fluid inlet, and at least one electrolyte fluid outlet, the channel system comprising at least one channel fluidly connecting the at least one electrolyte fluid inlet, the electrode assembly and the at least one electrolyte fluid outlet; wherein the electrolytic reaction chamber is rotatably mounted such that the electrolytic reaction chamber is rotatable about a rotation axis and wherein at least the at least one ion-permeable layer is configured to at least partially extend in a radial direction with respect to the rotation axis.
Absstract of: WO2026134785A1
According to exemplary embodiments of the present invention, a hydrogen production system and a hydrogen production method can be provided that ensures improved resource efficiency by recycling by-products generated in a hydrogen production process.
Absstract of: WO2026133128A1
The invention concerns a microreactor (20) for ammonia decomposition into hydrogen comprising two reactive chambers in fluid communications with each other, said first and second reactive chambers being formed by - a first ammonia decomposition chamber (21) containing a cracking catalyst, and - a second heating chamber (22), * said microreactor (20) having an ammonia feeding inlet (102) connected to said first ammonia decomposition chamber (21) and an air feeding inlet (108) connected to said second heating chamber inlet, * said first ammonia decomposition chamber (21) having an hydrogen outlet (104) for carrying off generated hydrogen and an ammonia decomposition products outlet (211), * said second heating chamber (22) having a second heating chamber inlet (212) in fluid connexion with the ammonia decomposition products outlet (211), and a residues outlet (106) for carrying off residues out of the microreactor (20).
Absstract of: WO2026134854A1
According to exemplary embodiments of the present invention, there may be provided an ammonia decomposition system with enhanced energy efficiency and a method using same by recycling thermal energy generated during an ammonia decomposition process.
Absstract of: WO2026133998A1
The present invention is a water electrolysis evaluation device 100 for evaluating a water electrolysis device W by reducing pressure fluctuations on the exhaust side of the water electrolysis device to maintain test conditions of the water electrolysis device, the water electrolysis evaluation device 100 comprising: a gas-liquid separation tank 521a that separates water discharged together with exhaust gas from the water electrolysis device W; a water level sensor 57 that is provided in the gas-liquid separation tank 521a and measures the water level in the gas-liquid separation tank 521a; a drainage flow path 58 that is connected to the gas-liquid separation tank 521a and discharges water from within the gas-liquid separation tank 521a; a fluid control valve 59 that is provided in the drainage flow path 58 and controls the flow rate of water flowing through the drainage flow path 58; and a control computation unit 50 that controls the fluid control valve 59 on the basis of an output signal from the water level sensor 57 so that the water level in the gas-liquid separation tank 521a is maintained within a certain range.
Absstract of: WO2026135032A1
According to exemplary embodiments of the present invention, the arrangement of catalysts is optimized, and thus sufficient ammonia decomposition efficiency can be ensured even if various catalysts are utilized.
Absstract of: WO2026134804A1
A manifold according to an embodiment of the present invention comprises: a first thin plate having a plurality of first holes; a plurality of intermediate thin plates which are stacked on the first thin plate and form a first flow path and a second flow path that are respectively in communication with two holes among the plurality of first holes and are separated; and a second thin plate which is disposed on the plurality of intermediate thin plates to shield the uppermost intermediate thin plate, and has a plurality of second holes respectively connected to the first flow path and the second flow path, wherein the first flow path and the second flow path may include a distribution flow path groove recessed in each of the plurality of intermediate thin plates, and the distribution flow path groove may be shielded by an upper thin plate thereon.
Absstract of: WO2026134831A1
A manifold according to one embodiment of the present invention may comprise: a first thin plate having a plurality of first holes; a second thin plate which is disposed on the upper portion of the first thin plate and has a plurality of expansion holes that respectively communicate with the plurality of first holes and increase in width from the inside toward the edges; and a third thin plate which is disposed on the upper portion of the second thin plate and has a plurality of gas channel slits corresponding to the respective edges of the plurality of expansion holes.
Absstract of: WO2026134884A1
The present invention relates to a porous electrode having controlled pore size and a method for manufacturing same and, more particularly, to a method for manufacturing a water electrolysis electrode and a water electrolysis electrode manufactured by the method of the present invention, the method comprising the steps of: preparing mixed metal powder including nickel powder and aluminum powder; filling the mixed metal powder into a mold formed in the shape of an electrode; applying pressure to the filled mixed metal powder to form a molded body; subjecting the molded body to first heat treatment in a reducing atmosphere; treating the heat-treated molded body with a basic solution to leach an aluminum component; and performing second heat treatment in a reducing atmosphere.
Absstract of: WO2026134833A1
According to exemplary embodiments of the present invention, it is possible to provide a hydrogen production system and a hydrogen production method which are capable of continuously producing hydrogen from different raw materials by using reduced iron.
Absstract of: WO2026135312A1
The present invention relates to a hydrogen production system, wherein the arrangement of catalysts in first and second catalyst regions is optimized according to the measurement value of NOx on the outer wall of a reaction tube and the average measurement value of NOx at an exhaust gas outlet, thereby securing sufficient ammonia decomposition efficiency despite the utilization of various catalysts.
Absstract of: US20260179973A1
0000 An electrochemical cell stack includes first and second separators, an electrochemical cell disposed between the first and second separators, a first metal foam disposed between the first separator and the electrochemical cell, and a cell frame surrounding side surfaces of the first and second separators and the first metal foam.
Absstract of: WO2026134782A1
Exemplary embodiments of the present invention may provide a hydrogen production method and a hydrogen production system, in which a first source gas containing ammonia is brought into contact with a catalyst containing carbon and iron, thereby producing hydrogen, thus minimizing the use of transition metals and precious metals.
Absstract of: WO2026135433A1
The present disclosure relates to a reinforced composite membrane, a membrane-electrode assembly, and a water electrolysis cell and, more particularly, comprises a dual porous support formed by laminating a first nanoweb and a second nanoweb having different average pore sizes and thus can have an improved water swelling ratio and an improved concentration gradient in the thickness direction, maintain ion conductivity by ensuring a unidirectional channel for ion transport, and have improved mechanical properties and durability.
Absstract of: WO2026134881A1
According to exemplary embodiments of the present invention, a hydrogen production system and a hydrogen production method may be provided, in which an iron-based catalyst that was used in an ammonia decomposition reaction may be easily recycled.
Absstract of: WO2026134853A1
According to exemplary embodiments of the present invention, provided may be a method for pretreating an ammonia decomposition catalyst, capable of effectively reducing an active metal oxide contained in the catalyst, and a method for regenerating same.
Absstract of: WO2026134763A1
According to exemplary embodiments of the present invention, a hydrogen production system and a hydrogen production method, which are capable of continuously producing hydrogen from different raw materials by using reduced iron, can be provided. In addition, according to exemplary embodiments of the present invention, an ammonia reformer and a catalyst, which are capable of improving hydrogen production efficiency of a hydrogen production system, are provided.
Nº publicación: WO2026135157A1 25/06/2026
Applicant:
POSCO HOLDINGS INC [KR]
\uD3EC\uC2A4\uCF54\uD640\uB529\uC2A4 \uC8FC\uC2DD\uD68C\uC0AC
Absstract of: WO2026135157A1
A hydrogen combustion system according to one embodiment of the present invention may comprise: water electrolysis equipment for producing hydrogen and oxygen from water or steam; combustion equipment for burning the hydrogen and the oxygen; and a boiler in which water is heat-exchanged with exhaust gas discharged from the combustion equipment, thereby generating steam.