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PRODUCTION AND USE OF AQUA-AMMONIA FOR STORAGE OF ENERGY OR HYDROGEN

Resumen de: WO2025059026A1

Provided herein are systems and methods for utilizing aqua-ammonia as an energy or hydrogen storage and transport medium. A method for delivering power, the method comprises converting enriched ammonia to electrical power and heat; and using the heat to remove water from aqua-ammonia, thereby producing the enriched ammonia.

HYBRID ELECTRODE COMPRISING PLASMONIC NANOPARTICLES AND ELECTROLYTIC SYSTEM COMPRISING SAME

Resumen de: WO2025058457A1

The present application relates to a hybrid electrode comprising plasmonic nanoparticles and an electrolytic system comprising same. The hybrid electrode and the electrolytic system comprising same according to embodiments of the present application may reactivate a catalyst surface by utilizing a plasmonic phenomenon during an electrochemical reaction using a plasmonic-active electrode (antenna-reactor) composite electrode.

PRODUCTION OF SYNTHETIC HYDROCARBONS

Resumen de: US2025091905A1

An eFuels plant and process for producing synthetic hydrocarbons using renewable energy are disclosed. The eFuels plant comprises a hydrocarbon synthesis (HS) system and a renewable feed and carbon/energy recovery (RFCER) system. The RFCER comprises a heat integration system between an electrolysis unit and a thermal desalination unit. The thermal desalination unit is configured to receive seawater and a first amount of thermal energy and to produce a desalinated water stream and a brine effluent stream. The electrolysis unit is configured to receive a demineralized water stream and an amount of electrical energy to produce a hydrogen stream, an oxygen stream, and a second amount of thermal energy, wherein the second amount of thermal energy is absorbed by a second low temperature heat transfer fluid stream to produce a second high temperature heat transfer fluid stream. A fluidly segregated piping system containing a heat transfer fluid is configured to withdraw heat from the electrolysis unit and deliver heat to the thermal desalination unit. A control system manages flows of the heat transfer fluid between the electrolysis unit and the thermal desalination unit, the addition of heat to the flow to the thermal desalination unit, and/or the removal of heat from the flow to the electrolysis unit.

METHOD FOR MANUFACTURING WATER ELECTROLYSIS CATALYST

Resumen de: WO2025058339A1

The present invention relates to a copper-nickel-iron double layer hydroxide nanoprism, a manufacturing method thereof, and a use thereof as a water electrolysis catalyst. The present invention discloses a catalytic electrode for water electrolysis, the catalytic electrode comprising: a metal foam; and a composite transition metal chalcogenide heterostructure formed on the metal foam. This catalytic electrode for water electrolysis can exhibit improved electrochemical catalytic activity for both a hydrogen evolution reaction (HER) and an oxygen evolution reaction (OER) in a water electrolysis reaction, can efficiently produce hydrogen with a lower energy supply than conventional noble metal electrodes, and can be used in both anion exchange membrane water electrolyzers and solar cell-water electrolysis systems. The present invention relates to a nanosphere hybrid structure containing nickel cobalt selenide and molybdenum selenide, and a use thereof as a water electrolysis catalyst. The present invention relates to a water electrolysis catalyst in which zinc cobalt sulfide and molybdenum disulfide are hetero-bonded, and a manufacturing method thereof.

MULTISTAGE ELECTROCHEMICAL HYDROGEN COMPRESSOR AND CONTROL METHOD THEREOF

Resumen de: WO2025058397A1

A multistage electrochemical hydrogen compressor according to an embodiment of the present invention may include: a stack for compressing hydrogen; and a current supply unit for applying a current to the stack, wherein the stack includes: a low-pressure end plate having an inlet through which low-pressure hydrogen is introduced; a high-pressure end plate having an outlet for discharging high-pressure hydrogen acquired by compressing the low-pressure hydrogen; a plurality of cells disposed between the low-pressure end plate and the high-pressure end plate; and a membrane-electrode assembly each disposed between the plurality of cells, and the current supply unit is connected to each of the plurality of cells to selectively control current application to the plurality of cells.

OFFSHORE GREEN HYDROGEN PRODUCTION SYSTEM INTEGRATED WITH FLOATING OFFSHORE WIND POWER

Resumen de: WO2025058260A1

An apparatus integrated with floating offshore wind power for producing offshore green hydrogen, according to one embodiment, comprises: an offshore wind power generator; a hydrogen production system for producing hydrogen by using seawater; a control unit for controlling at least one portion of the hydrogen production system; and a power source unit for supplying power to at least one portion of the hydrogen production system or the control unit.

HYDROGEN DRYING SYSTEM FOR HYDROGEN PRODUCTION USING RENEWABLE ENERGY

Resumen de: WO2025055403A1

A hydrogen drying system for hydrogen production using renewable energy. Two adsorbers (1, 2) are arranged in parallel, the two adsorbers (1, 2) alternately perform an adsorption process and a desorption process, the adsorption flow of each of the adsorbers (1, 2) changes along with the fluctuations of input renewable energy, and an operating state of each of the adsorbers (1, 2) is switched by means of accumulating the hydrogen flow treated by each of the adsorbers (1, 2) during a single adsorption process; a pre-adsorber (3) is connected in series to one of the adsorbers (1, 2) and is used for assisting in the desorption process; and during the desorption process, hydrogen in the pre-adsorber (3) or the adsorbers (1, 2) is circulated by means of a hydrogen self-circulation apparatus (4), and the desorption process is independent of the adsorption process. Since the adsorption process and the desorption process are independent of each other, after a raw gas enters the adsorbers (1, 2) and absorption is completed, all the raw gas is output; and during the desorption process, hydrogen in the pre-adsorber (3) or the adsorbers (1, 2) is circulated by means of the hydrogen self-circulation apparatus (4) to realize hydrogen regeneration, so that the problem of desorption being incomplete due to desorption interruption caused by the flow fluctuations of the raw hydrogen is solved, intermittent and fluctuating renewable energy can be matched to perform hydrogen production, and an op

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

Resumen de: US2025092537A1

In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.

METHOD AND APPARATUS FOR GASIFICATION OF BIOGENIC MATERIAL

Resumen de: US2025092323A1

There is provided a method and apparatus for producing hydrogen gas from biogenic material (210) within a pressure vessel (10). The method comprises heating a granular material (15) to greater than 500° C., adding a batch of biogenic material (210) into the pressure vessel with the heated granular material (15) at atmospheric pressure, closing the pressure vessel, and mixing the heated granular material (15) with the biogenic material (210) inside the closed pressure vessel (10) to raise the temperature of the biogenic material (210) and commence gasification, the gasification producing gas that increases the pressure inside the pressure vessel (10), the produced gas comprising hydrogen gas.

METHOD OF PRODUCING FORMALDEHYDE

Resumen de: US2025091976A1

A method of producing formaldehyde, the method comprising: generating electrolytic hydrogen from the electrolysis of water; providing a feedstock gas stream comprising the electrolytic hydrogen and one or both of carbon monoxide and carbon dioxide; converting at least a portion of the feedstock gas to methanol; converting at least a portion of the methanol to formaldehyde and hydrogen; separately recovering at least some of the formaldehyde and at least some of the hydrogen; and recycling at least some of the recovered hydrogen to the feedstock gas stream.

CHEMICAL SYNTHESIS PLANT

Resumen de: US2025091862A1

A plant, such as a hydrocarbon plant, is provided, which has a syngas stage for syngas generation and a synthesis stage where the syngas is synthesized to produce syngas derived product, such as hydrocarbon product. The plant makes effective use of various streams; in particular, CO2 and H2. The plant does not comprise an external feed of hydrocarbons. A method for producing a product stream, such as a hydrocarbon product stream is also provided.

HYDROGEN PRODUCTION FROM AIR

Resumen de: US2025092532A1

A process of producing hydrogen from air comprising: contacting a hygroscopic liquid with a source of air to absorb a water content from said source of air into the hygroscopic liquid; and electrolytically converting the water absorbed in the hygroscopic liquid into hydrogen and oxygen.

PROCESSES FOR THE CONTINUOUS PRODUCTION OF HYDROGEN GAS

Resumen de: US2025092531A1

The invention generally concerns processes for the production of hydrogen gas.

ELECTROCATALYSTS FOR THE OXYGEN EVOLUTION REACTION IN ACID CONDITIONS

Resumen de: US2025092543A1

An oxygen evolution reduction electrocatalyst includes a pyrochlore compound with the chemical formula Sm2Ru2xM2-2xO7, where M is selected from the group consisting of Ir, Sc, Fe, Cu, Pd, Cr, and Rh, and x is less than 1.0 and greater than or equal to 0.5. Also, a water electrolysis cell includes an anode, a cathode, an electrolyte, and the oxygen evolution reduction electrocatalyst.

PLASMONIC SUBSTRATE FOR PLASMONIC ENHANCEMENT

Resumen de: US2025092545A1

A plasmonic substrate includes a base, a metallic film on the base, and a semiconducting photocatalyst on the metallic film. A method for producing a plasmonic substrate includes depositing a first metal layer having a thickness ranging from 10 to 200 nm and having a first metal through a physical vapor deposition technique onto a base, depositing a second metal layer having a second metal through a physical vapor deposition technique onto the first metal layer forming a multilayered metal template, immersing the multilayered metal template into a solution having a salt or complex of the second metal for a period of time forming a metallic film, and depositing a semiconducting photocatalyst on the metallic film. A method of catalyzing hydrogen production includes immersing a plasmonic substrate in a photocatalytic solution, exposing the plasmonic substrate to light, and generating hydrogen at a surface of the semiconducting photocatalyst.

BIPOLAR PLATE COMPRISING SURFACE-TREATED FLOW CHANNELS

Resumen de: US2025087718A1

A bipolar plate for a fuel cell having a two-phase cooling system and a fuel cell system includes a coolant inlet, a coolant outlet, and coolant channels with the coolant inlet being in fluid connection with the coolant outlet via the coolant channels. At least one inner surface of coolant inlet, coolant outlet and at least one of the coolant channels has a surface treatment to influence a flow regime of a cooling fluid along at least one inner surface and/or a phase transition of the cooling fluid.

- Bifunctional electrocatalysts with Fe and Se for overall water splitting method of manufacturing the same electrolyzer apparatus having the same

Resumen de: KR20250039100A

본 발명은, 귀금속이 아닌 원소를 양기능성 전극 촉매로 사용한 철-셀레늄 기반 양기능성 수전해 촉매체 및 그 제조방법, 및 그를 포함하는 수전해 장치를 제공한다. 본 발명의 일 실시예에 따른 양기능성 수전해 촉매체의 제조방법은, 베이스 기판을 제공하는 단계; 상기 베이스 기판을 질산 니켈 용융액에 침지하여, 상기 베이스 기판 상에 수산화니켈 아질산 어레이 구조체를 성장시키는 단계; 상기 수산화니켈 아질산 어레이 구조체를 어닐링하는 단계; 및 상기 어닐링된 수산화니켈 아질산 어레이 구조체 상에 철 및 셀레늄을 전착시켜 철-셀레늄 촉매층을 형성하는 단계를 포함한다.

Verfahren zum Betreiben einer Elektrolyseanlage, Elektrolyseanlage

Resumen de: DE102023209125A1

Die Erfindung betrifft ein Verfahren zum Betreiben einer Elektrolyseanlage (1), umfassend einen Stack (2) mit einer Anode (3) und einer Kathode (4), wobei im Normalbetrieb der Elektrolyseanlage (1) der Anode (3) über einen Wasserkreislauf (5) mit integrierter Pumpe (6) Wasser zugeführt wird und das Wasser im Stack (2) durch Elektrolyse in Wasserstoff und Sauerstoff aufgespalten wird, und wobei der durch Elektrolyse erzeugte Wasserstoff über einen Kathodenauslass (10) des Stacks (2) und eine hieran angeschlossene Medienleitung (7) einem Gas-Flüssigkeit-Separator (8) zugeführt wird. Erfindungsgemäß ist vorgesehen, dassa) beim Abschalten der Elektrolyseanlage (1) ein Absperrventil (11) in einer Inertgasleitung (12) geöffnet wird, die einen Inertgasbehälter (13) mit der Kathode (4) verbindet, und die Kathode (4) mit dem Inertgas gespült wird, während die Wasserversorgung der Anode (3) eingestellt wird, undb) beim Wiederanfahren der Elektrolyseanlage (1) die folgenden Schritte ausgeführt werden:(i) Schließen des in die Inertgasleitung (12) integrierten Absperrventils (11),(ii) Versorgen der Anode (3) mit Frischwasser über eine an den Wasserkreislauf (5) angeschlossene Frischwasserversorgung (14) bei noch abgeschaltetem Strom,(iii) Versorgen des Stacks (2) mit dem für die Elektrolyse benötigten Strom und(iv) Produktion einer Wasserstoffmenge, die mindestens der Menge an in der Kathode (4) vorhandenem Inertgas, vorzugsweise der 1,5- bis 10-fachen Menge an in der Kath

CONVERSION OF CARBON DIOXIDE AND WATER TO SYNTHESIS GAS

Resumen de: CN119095792A

The present invention relates to a process for producing methanol by synthesis gas produced by combining electrolysis of a water feedstock for producing a stream comprising hydrogen with electrolysis of a carbon dioxide rich stream for producing a stream comprising CO and CO2 wherein the CO/CO2 molar ratio of the synthesis gas is greater than 2. The invention also relates to a method for producing syngas by subjecting a combined feed gas stream of CO2 and steam to one-way co-electrolysis in an SOEC unit.

BIPOLAR PLATE WITH SURFACE-TREATED FLOW CHANNELS

Resumen de: EP4525102A1

Es ist eine Bipolarplatte (10) und ein Brennstoffzellensystem (100), für eine Brennstoffzelle mit einem Zwei-Phasen-Kühlsystem angegeben, aufweisend:einen Kühlmitteleinlass (12),einen Kühlmittelauslass (14),eine Vielzahl von Kühlmittelkanälen (16),wobei der Kühlmitteleinlass (12) über die Vielzahl von Kühlmittelkanälen (16) mit dem Kühlmittelauslass (14) in Fluidverbindung steht,wobei mindestens eine Innenfläche von Kühlmitteleinlass (12), Kühlmittelauslass (14) und mindestens einem der Vielzahl von Kühlmittelkanälen (16) eine Oberflächenbehandlung aufweist um einen Strömungsverlauf einer Kühlflüssigkeit entlang mindestens einen Innenfläche und/oder einen Phasenübergang der Kühlflüssigkeit zu beeinflussen.

DEVICE FOR PROVIDING HYDROGEN

Resumen de: WO2023217683A2

In order to provide a device (1) for providing hydrogen (H2) by means of an electrolysis unit (2) which allows the longest possible service life of the electrolysis unit (2) even in case of fluctuating energy supplies to the electrolysis unit (2), a reciprocating piston compressor (3) is provided to compress the hydrogen (H2) generated by the electrolysis unit (2), the reciprocating piston compressor (3) having at least one automatic intake valve (5). A retraction gripper (6) is provided in order to hold the intake valve (5) selectively in an open position, an electrically actuatable actuator (7) is provided to activate the retraction gripper (6), and a control unit (4) is provided to control the actuator (7), the control unit (4) being designed to actuate the actuator (7) in such a way that an outlet pressure (p1) of the hydrogen (H2) at the outlet of the electrolysis unit (2), or a differential pressure (Δp) between an anode and a cathode of the electrolysis unit (2), is adjustable to a predefined target value (p1_soll, Δp_soll).

Hydrogen fuel-cell systems

Resumen de: GB2633722A

An integrated hydrogen-electric engine includes a hydrogen fuel-cell; a hydrogen fuel source; an electric motor assembly disposed in electrical communication with the fuel-cell; an air compressor system configured to be driven by the motor assembly, and a cooling system having a heat exchanger radiator in a duct of the cooling system, and configured to direct an air stream including an air stream from the air compressor through the radiator, wherein an exhaust stream from a cathode side of the fuel-cell is fed via a flow control nozzle into the air stream in the cooling duct downstream of the radiator.

METHOD OF PREPARING METAL OXIDE CATALYSTS FOR OXYGEN EVOLUTION REACTION

Resumen de: CN118984733A

Highly active and stable water electrolysis catalysts with reduced noble metal loading and methods of making the same are described. The method involves depositing a substantially continuous platinum group metal (PGM)-based precursor thin shell layer on a nanoscale inorganic oxide core to form a coated inorganic oxide core. The coated inorganic oxide core is heated in the presence of a template to convert the substantially continuous PGM-based precursor thin shell layer to a substantially continuous PGM oxide thin shell layer. The template is then removed, forming a water electrolysis catalyst comprising a nanoscale inorganic oxide core having a substantially continuous PGM oxide thin shell layer. The water electrolysis catalyst comprises less than 30% by weight of PGM oxide.

CATALYST COATED IONICALLY CONDUCTIVE MEMBRANE COMPRISING CONDUCTIVE POLYMER FOR WATER ELECTROLYSIS

Resumen de: CN119032201A

A catalyst coated ion conducting membrane is described. The catalyst coated ion conducting membrane includes an ion conducting membrane; an anode catalyst coating on a first surface of the ion-conducting membrane, or a cathode catalyst coating on a second surface of the ion-conducting membrane, or both, where the anode catalyst coating or the cathode catalyst coating or both comprises a conductive polymer. Membrane electrode assemblies and electrolysis systems incorporating the catalyst coated ion conducting membranes are also described.

Manufacturing method of electrode catalyst for water electrolysis

Nº publicación: KR20250038621A 19/03/2025

Solicitante:

한국에너지기술연구원

Resumen de: KR20250038621A

본 개시는 수전해 반응용 전극 촉매의 제조 방법에 관한 것으로, 니켈계 전구체로부터 전극 모재 상에 Ni(OH)2 층을 형성하는 수열합성 단계; 상기 Ni(OH)2를 NiO로 산화시키는 열처리 단계; 및 상기 NiO 층 상에 전이금속 이중층 수산화물을 형성하는 전기증착 단계;를 포함한다. 상기 제조방법에 따라 제조된 전극 촉매는 산소발생반응 및 수소발생반응의 수전해 반응에서 우수한 활성 및 안정성을 가질 수 있다.