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MOLDED CATALYST FOR AMMONIA DECOMPOSITION AND MANUFACTURING METHOD THEREFOR

Resumen de: WO2025220974A1

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.

ELECTROLYTIC CELL STACK, ELECTROLYTIC CELL CARTRIDGE, ELECTROLYTIC CELL MODULE, AND METHOD FOR MANUFACTURING ELECTROLYTIC CELL STACK

Resumen de: WO2025220485A1

The present disclosure provides an electrolytic cell stack capable of increasing the amount of product generated by electrolysis while suppressing a temperature rise of the cell stack. An electrolytic cell stack (101) according to the present disclosure comprises: a hydrogen generation unit (10) provided with an electrolytic cell (105) having a hydrogen electrode, an oxygen electrode, and a solid electrolyte membrane; a raw material gas supply port (11); a hydrogen gas discharge port (12); a raw material gas supply-side heat exchange unit (13); and a hydrogen gas discharge-side heat exchange unit (14). The raw material gas supply-side heat exchange unit and the hydrogen gas discharge-side heat exchange unit are each composed of a heat transfer unit and a header unit. The heat transfer unit area of the hydrogen gas discharge-side heat exchange unit is larger than the heat transfer unit area of the raw material gas supply-side heat exchange unit.

WATER ELECTROLYSIS SYSTEM AND METHOD FOR OPERATING WATER ELECTROLYSIS SYSTEM

Resumen de: WO2025220363A1

This water electrolysis system uses an alkaline aqueous solution as an electrolytic solution, and is provided with: a cell stack to which the electrolytic solution is supplied; a storage unit in which the electrolytic solution is stored; an annular flow path that connects the storage unit and the cell stack; a pump unit that is provided on the annular flow path; a scale removal unit that is provided on the annular flow path and is capable of removing a scale contained in the electrolytic solution; and a scale component removal unit that is capable of removing scale components dissolved in the electrolytic solution at a saturation concentration or less.

NEW-ENERGY HYDROGEN PRODUCTION POWER SUPPLY, AND NEW-ENERGY HYDROGEN PRODUCTION SYSTEM AND CONTROL METHOD THEREFOR

Resumen de: WO2025218743A1

Provided in the present application are a new-energy hydrogen production power supply, and a new-energy hydrogen production system and a control method therefor. The new-energy hydrogen production power supply comprises: a rectification stage, which is used for connecting to a power bus to perform conversion between an alternating current and a direct current; an energy storage stage, which is connected to a direct-current side of the rectification stage in parallel and is used for absorbing, storing and/or releasing electric energy; and a chopping stage, which is separately connected to the rectification stage and an electrolyzer and is used for increasing or reducing a direct-current voltage and providing a direct current to the electrolyzer. The control method for a new-energy hydrogen production system comprises: on the basis of the power generation condition of a power bus, controlling a new-energy hydrogen production power supply to operate in the following operating modes: a new-energy low generation mode, a new-energy hydrogen production mode, a new-energy fluctuation mode and a new-energy power-deficient mode. The new-energy hydrogen production power supply has an energy storage link, can operate in modes where the new-energy output is low or fluctuates rapidly, can absorb or send active power to maintain the operation of an electrolyzer, and can use an energy storage stage to mitigate new-energy fluctuations, thus maximizing the utilization of new-energy power.

HYDROGEN PRODUCTION AND DISSOLUTION SYSTEM AND METHOD

Resumen de: WO2025218265A1

Disclosed in the present invention are a hydrogen production and dissolution system and method. The hydrogen production and dissolution system comprises a power supply assembly, an electrolysis assembly, a treatment assembly, a reaction assembly, and a safety assembly. The treatment assembly comprises a gas-liquid separator, and the gas-liquid separator is communicated with an electrolyzer; the reaction assembly comprises a pressure booster and reaction tanks, the pressure booster has one end communicated with the gas-liquid separator and the other end communicated with the reaction tanks, the pressure booster pressurizes the reaction tanks, and an ultrasonic generator is provided in each reaction tank; and the safety assembly comprises leakage sensors, and each leakage sensor is arranged on a side of a corresponding reaction tank. The hydrogen production and dissolution method is used for controlling the hydrogen production and dissolution system. The present invention can directly dissolve the produced hydrogen in water, thereby reducing potential safety hazards while eliminating the need for storage and transportation devices.

A CORE-SHELL CATALYST, METHODS OF MAKING AND USES THEREOF

Resumen de: WO2025217726A1

The present disclosure relates to core-shell particles, such as core-shell particles comprising a core comprising TiOx; and a shell comprising iridium, methods of preparing core-shell particles, and uses thereof, such as a catalyst in an oxygen evolution reaction (OER).

DEVICE FOR GENERATING MOLECULAR HYDROGEN FOR DOMESTIC AND INDUSTRIAL APPLICATIONS

Resumen de: WO2025217696A1

The present invention relates to an advanced portable system for generating molecular hydrogen, designed to enrich water with hydrogen gas. The device uses an optimized electrolysis technique to infuse hydrogen into water, providing significant antioxidant and alkalizing benefits. Although initially designed for domestic use, the modular and scalable design of the system allows its application in industrial and commercial settings, providing customised solutions for water treatment at various scales. The core technology of the invention can adjust the concentration of molecular hydrogen dissolved in water, allowing the user to control the level of hydrogenation as necessary. This is crucial for adapting the device to various water quality requirements across multiple sectors, including healthcare, hospitality and industrial processing. The system is also designed to be extremely energy-efficient, using low-power components to reduce environmental impact and operating costs. The novelty of this invention lies not only in its hydrogenation functionality, but also in its ability to raise the pH of water, although this feature is involved as a secondary benefit. The invention primarily aims to provide a consistent and effective source of hydrogen-enriched water, known for its beneficial effects in reducing oxidative stress, improving cellular hydration and potentially supporting the prevention of various age-related conditions. This system represents a significant advancement in

MODIFIED MXENE MATERIALS

Resumen de: WO2025217689A1

This disclosure describes freestanding or delaminated two-dimensional (2D) sheets of at least dual modified functionalised MXene materials, Mn+1XnTx, having electronegative surface groups and non-metal dopant and electrochemically active dopant atoms in the materials, suitable as OER catalysts.

Water electrolysis catalyst and water electrolysis device

Resumen de: US2025327198A1

The disclosure provides a water electrolysis catalyst and a water electrolysis device. The water electrolysis catalyst includes a catalyst support layer and a catalyst. The catalyst grows vertically and orderly on the catalyst support layer, and the catalyst has a nanowire or nanochain microstructure. The water electrolysis catalyst further includes nanoparticles stacked to form the nanowire or nanochain microstructures, and a diameter of the nanoparticles is from 5 nm to 500 nm.

IMPROVEMENTS RELATING TO HYDROGEN ELECTROLYSIS SYSTEMS

Resumen de: US2025327192A1

A hydrogen generation system comprising a hydrogen electrolyser, a power converter connected to the electrolyser, and a control system configured to control the power converter to supply power to the electrolyser The system further includes a monitoring system configured to monitor the operation of the generation system, wherein the monitoring system is configured to: determine a plurality of operational parameters of the electrolyser, and, generate one or more performance metrics based on the determined operational parameters, the one or more performance parameters including: the electrical capacitance of the electrolyser, and/or the equivalent series resistance of the electrolyser. Also disclosed is a method for determining operational performance of a hydrogen generation system including an electrolyser.

AMMONIA PRODUCTION FROM CARBON- AND WATER-DERIVED HYDROGEN

Resumen de: US2025326652A1

Methods and systems for ammonia production are provided. An exemplary method includes electrolyzing water to form H2 and O2, contacting a reformer feed stream including hydrocarbons, O2 from electrolysis, and an oxidant stream including O2 and N2 to form a reformed stream including H2, CO, CO2, and N2; contacting the reformed stream with a water-gas shift catalyst to form a shifted stream including H2, CO2, and N2; separating the shifted stream to form a captured stream including CO2 and an ammonia production feed stream including H2 and N2; and reacting the ammonia production feed stream, and optionally H2 from electrolysis, to form ammonia.

Poröse Transportschicht und Herstellverfahren

Resumen de: DE102024111239A1

Poröse Transportschicht 1 für den Einsatz in einem Elektrolyseur, wobei die Transportschicht 1 mehrere miteinander verbundene Lagen 2-4 aufweist, wobei mindestens eine der Lagen 2 eine Porosität unter 75 % aufweist und eine weitere Lage 3 eine Porosität von 75 % bis 90 % aufweist, wobei alle Lagen 2-4 aus Metall bestehen und stoffschlüssig miteinander verbunden sind, wobei wenigstens eine der Lagen 3 aus einem Flächengebilde aus Draht oder aus einem Streckmetallgitter besteht, das eine Hauptebene und eine 3D-Strukturierung senkrecht zu seiner Hauptebene aufweist, so dass in Verbindung mit einer benachbarten Lage 2, 4 Strömungskanäle ausgebildet werden.

AMMONIA DECOMPOSITION APPARATUS

Resumen de: EP4635906A1

This ammonia decomposition apparatus is provided with: a reactor in which a catalyst for a decomposition reaction for decomposing ammonia that is a starting material into hydrogen and nitrogen is filled; a burner which is disposed in the reactor on the upstream side beyond the catalyst and is used for combusting hydrogen; and an ammonia supply line through which ammonia is supplied into the reactor on the upstream side beyond the catalyst.

AMMONIA DECOMPOSITION CATALYST AND METHOD FOR PRODUCING SAME

Resumen de: EP4635623A1

The present invention relates to an ammonia decomposition catalyst and a method for producing same and, more specifically, to an ammonia decomposition catalyst containing alumina (Al₂O₃), cerium (Ce), lanthanum (La), ruthenium (Ru), and potassium (K), and a method for producing the ammonia decomposition catalyst.

METHOD AND APPARATUS FOR PRODUCTION OF HYDROGEN

Resumen de: EP4635599A1

An method (100-600) for producing hydrogen is proposed, comprising providing a first gas (1) containing hydrogen, oxygen and water, said providing the first gas (1) comprising an electrolytic conversion of water; providing a second gas (5) containing hydrogen, oxygen and water, said providing the second gas (5) comprising a condensative removal of water from the first gas (1) or a part thereof; and providing a third gas (10) containing hydrogen, said providing the third gas (10) comprising an adsorptive removal of water and a catalytic removal of oxygen from the second gas (5) or a part thereof using a adsorptive and catalytic treatment arrangement (110) comprising treatment vessels (A, B), wherein each of the treatment vessels (A, B) comprises, in a first direction from a first opening to a second opening, a first adsorption layer (211), a catalytic layer (212) and a second adsorption layer (213), wherein each of the treatment vessels (A, B) is alternatingly operated in a treatment mode and a regeneration mode, wherein, in the treatment mode, the second gas (5) or a part thereof is passed in the first direction through the treatment vessels (A, B), wherein, in the treatment mode, the first adsorption layer (211) and the second adsorption layer (213) are used for said adsorptive removal of water and the catalytic layer (212) is used for said catalytic removal of oxygen, wherein, in the regeneration mode, the treatment vessels (A, B) are heated using a heating gas (5a, 10a) wh

光触媒を用いた水素ガス製造装置

Resumen de: JP2025160031A

【課題】 光触媒を用いた水素ガス製造装置に於いて、水素製造量を変化させるパラメータを調節して、水素製造量を制御できるようにする。【解決手段】 水素ガス製造装置１は、水３を貯留する水槽部２と、水槽部内の水中に分散又は配置された光触媒体３ａにして、光が照射されると、励起電子と正孔を発生し、水分子を水素と酸素とに分解する水の分解反応を起こし水素ガスを発生する光触媒物質を有する光触媒体と、光触媒体へ照射されて水の分解反応を惹起する光を発する光源装置４と、水素ガスの発生量を検知する水素発生量検知手段１６と、水素発生量検知手段にて検知された水素ガスの発生量に基づいて水素ガスの発生量を調節する水素発生量調節手段５０とを含む。【選択図】 図１

ELECTROLYSIS DEVICE AND ELECTROLYSIS METHOD

Resumen de: EP4636131A2

An electrolysis device includes: an electrolysis cell; a cathode supply flow path; an anode supply flow path; a cathode discharge flow path; an anode discharge flow path; a cathode flow rate regulator to adjust a flow rate A of a cathode supply fluid; an anode flow rate regulator to adjust a flow rate B of a anode supply fluid; a first flowmeter to measure a flow rate C of a cathode discharge fluid; a second flowmeter to measure a flow rate D of a anode discharge fluid; and a control device to estimate a Faraday efficiency according to a relational expression for approximating the Faraday efficiency to a function including the C and D, and control the cathode flow rate regulator according to the estimated Faraday efficiency to control the A.

METHANATION AND RECOVERY METHOD, SYSTEM, AND APPARATUS

Resumen de: EP4636058A2

A system (100) comprising a first chamber (108) configured to contain liquid water (115) and to receive a hydrocarbon combustion exhaust stream (104) comprising water and carbon dioxide; a heat exchanger (120) positioned in the first chamber and configured to convey methanation reaction products (144) through the first chamber to transfer heat from the methanation reaction products to the liquid water; and an electrolysis system (124) configured to subject the heated liquid water to electrolysis to generate hydrogen and oxygen, the electrolysis system comprising an anode (124) and a cathode (126) each received in the chamber.

OPERATION METHOD OF WATER ELECTROLYSIS CELL

Resumen de: US2025320612A1

The present disclosure relates to a method of operating a water electrolysis cell that can improve long-term durability even under high current density operating conditions.

IMPROVED MULTI-LAYERED PROTON EXCHANGE MEMBRANE FOR WATER ELECTROLYSIS

Resumen de: WO2024126749A1

There is provided a multi-layered proton exchange membrane for water electrolysis, comprising: at least two recombination catalyst layers, each of the at least two recombination catalyst layers comprising a recombination catalyst and a first ion exchange material, wherein at least two recombination catalyst layers are separated by a region devoid of or substantially devoid of a recombination catalyst, and at least two reinforcing layers, each of the at least two reinforcing layers comprising a microporous polymer structure and a second ion exchange material which is at least partially imbibed within the microporous polymer structure.

Nanosheet for hydrogen evolution reaction catalyst and method for preparing thereof

Resumen de: KR20240099886A

Provided is the nano sheet for the hydrogen generation reaction catalyst. The nanosheet for a hydrogen generation reaction catalyst may be made of a transition metal dichalcogenide alloy, wherein the transition metal dichalcogenide alloy may include one transition metal selected from group 5 and one transition metal selected from group 6.

電解装置の運転方法

Resumen de: JP2025159694A

【課題】シャットダウンせずに、陰極への金属の析出を抑制することと、陰極上に析出した金属を溶解除去することと、が可能な電解装置の運転方法を提供する。【解決手段】相互に隔膜４で区画された、陽極２ａを有する陽極室５ａと、陰極２ｃを有する陰極室５ｃと、を具える電解装置の運転方法であって、前記陽極室５ａ及び前記陰極室５ｃは、電解液で満たされており、可逆水素電極（ＲＨＥ）よりも負に大きい電位領域で、前記陰極２ｃの電位Ｅｃを制御することで、前記陰極２ｃの電位Ｅｃを負の方向に大きくさせる物質の前記陰極２ｃへの付着を抑制し且つ前記陰極２ｃの電位Ｅｃを負の方向に大きくさせる物質を前記陰極２ｃから除去することを特徴とする、電解装置の運転方法である。【選択図】図３

WATER ELECTROLYSIS CELL AND WATER ELECTROLYSIS STACK INCLUDING THE SAME

Resumen de: KR20250151113A

본 발명은 수전해 셀 및 이를 포함하는 수전해 스택에 관한 것으로서, 수전해 셀은, 내부에 제1 전극 배치홀이 형성되는 제1 셀 프레임, 내부에 제2 전극 배치홀이 형성되는 제2 셀 프레임 및 상기 제1 전극 배치홀에 배치되는 제1 전극과, 상기 제2 전극 배치홀에 배치되는 제2 전극과, 상기 제1 전극과 상기 제2 전극 사이에 배치되는 이온교환막을 포함하는 막-전극 조립체를 포함할 수 있다.

SYSTEM FOR BRINE ELECTROLYSIS USING THERMAL FLUID

Resumen de: KR20220122309A

The embodiment relates to a brine electrolysis system and device. The brine electrolysis system according to the embodiment includes: an electrolysis device for electrolyzing brine; a storage tank for storing a thermal fluid; and a circulation pump that is disposed between the electrolysis device and the storage tank to inject the thermal fluid stored in the storage tank into the electrolysis device when the electrolysis device electrolyzes the brine.

光触媒を用いた水素ガス製造装置

Nº publicación: JP2025158504A 17/10/2025

Solicitante:

トヨタ自動車株式会社

Resumen de: JP2025158504A

【課題】 光触媒を用いた水素ガス製造装置１に於いて、水槽２内の圧力をできるだけ精度良く推定できるようにする。【解決手段】 水素ガス製造装置に於いて、水槽内圧力推定手段は、予め調べられた、光源装置４から光触媒体へ光が種々の照射光強度にて照射されたときの水槽内圧力に基づいて決定される現在の照射光強度に於ける水槽内圧力の暫定推定値に、生成ガスの搬送流路に設けられた圧力検知手段１２にて検知された圧力の検知値と、その検知値に対応する圧力が水槽内にて発生した時点に於ける照射光強度に於ける水槽内圧力の暫定推定値とに基づいて算出された補正係数を乗じて得られた値を現在の水槽内圧力の現在推定値として決定する。【選択図】 図１