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PHOTOCATALYTIC UNIT FOR THE PRODUCTION OF HYDROGEN FROM WATER, AND SOLAR PLANT COMPRISING SAID PHOTOCATALYTIC UNIT

Resumen de: US2025250164A1

The invention relates to a photocatalytic unit for the production of hydrogen from water, comprising: (i) a photoreactor comprising a plurality of tubes, wherein said tubes internally comprise a photocatalyst, and are adapted for internally conducting a stream of water vapor; and absorbing external solar radiation focused on said tubes; and (ii) a plurality of solar reflectors adapted for concentrating incident solar radiation on the tubes of the photoreactor. Advantageously, the tubes of the photoreactor are arranged in a plane substantially perpendicular to the ground, and the solar reflectors w are arranged at both sides of said plane. The invention also relates to a solar plant for generating hydrogen comprising, at least, one photocatalytic unit according to any of the embodiments herein described, and a water vapor stream source connected to the photocatalytic unit.

CATALYTIC PRODUCTION OF HYDROGEN FROM WATER

Resumen de: US2025250165A1

Processes of photocatalytically generating molecular hydrogen (H2) and systems for carrying out the processes. Liquid water is contacted with an amount of a ID and/or 2D carbon-doped nanofilament-based photocatalyst material composition and a hole scavenger chemical, optionally under an inert gas purge, at temperature of 100° C. or less, generating gaseous molecular hydrogen by irradiating the liquid water, the hole scavenger chemical, and the photocatalyst for about 1 to 300 hours with at least one sun illumination (UV-Vis light (250-650 nm)).

REDUCING COMPOSITIONS AND PROCESSES FOR PRODUCING THE SAME

Resumen de: US2025250187A1

The present disclosure describes a process for producing a reducing liquid comprising providing a liquid; providing a reducing gas and/or a metasilicate; and infusing the reducing gas and/or the metasilicate to the liquid, for the reducing gas and/or metasilicate to react with the liquid to produce a reducing liquid that has an oxidation reduction potential (ORP) value of about −100 mV or more negative. Further described is the process for preparing a reducing gas, which includes the steps of preparing an activator, introducing the activator into an electrolytic reactor, adding water, and applying a direct current to produce the reducing gas. Also described is a system for producing a reducing liquid.

Electrochemical Cell Assembly with Insert

Resumen de: US2025253377A1

The invention relates to an electrochemical cell assembly including a first end plate assembly, a stack of cell repeat units, and a second end plate assembly. The stack is held in a compressed state between the first end plate assembly and the second end plate assembly. The first end plate assembly and/or the second end plate assembly each include an end plate. The electrochemical cell assembly includes an insulation plate located between the end plate and the stack. At least one through-hole is provided in the insulation plate and a sealing insert is provided in the at least one through-hole of the insulation plate, the sealing insert defining a fluid pathway along the stacking direction. The invention also relates to an end plate assembly and a method of manufacturing an electrochemical cell assembly.

HYDROGEN PRODUCTION FACILITY AND METHOD

Resumen de: WO2025163034A1

A hydrogen production facility is disclosed, comprising a plurality of electrolyser stacks arranged for electrolyzing water using an electrolyte and for generating at least a hydrogen-aqueous solution mixture; and a hydrogen separator arrangement for producing a flow of hydrogen from the hydrogen-aqueous solution mixture; wherein the hydrogen separator arrangement comprises a plurality of first stage hydrogen collector separators, the first stage hydrogen collector separators being fluidly coupled to a respective sub-set of the plurality of electrolyser stacks; and wherein the plurality of first stage hydrogen collector separators are fluidly coupled to a downstream hydrogen buffer vessel. A related method is further disclosed.

A METHOD FOR HEATING UP ELECTROLYTIC UNITS OF AN ELECTROLYSIS PLANT AND A SYSTEM ASSOCIATED THEREWITH

Resumen de: WO2025162959A1

The disclosure refers to a computer-implemented method for heating up electrolytic units. The method comprises determining whether some electrolytic units of an electrolysis plant require heating up to have them at a temperature within a predetermined range in a future time span; controlling the electrolytic units to power them up based on first electric power available in a current time span; heating up the electrolytic units to have them at the temperature within the predetermined range in the at least one future time span; and repeating the steps such that the heating up is determined for one or more time spans that occur at the same time and/or later than the future time span, thereby repeatedly controlling the temperature of the electrolytic units to be at a temperature within the predetermined range in the future time spans.

HYDROGEN PRODUCTION FACILITY AND METHOD

Resumen de: WO2025163031A1

Aspects of the present disclosure relate to a hydrogen production facility. The hydrogen production facility includes one or more electrolyser stacks to electrolyze water using an electrolyte and generate a hydrogen-aqueous solution mixture and an oxygen-aqueous solution mixture, the one or more electrolyser stacks comprising a plurality of membranes. The facility also includes a hydrogen separator to produce a flow of hydrogen from the hydrogen-aqueous solution mixture and an oxygen separator to produce a flow of oxygen from the oxygen-aqueous solution mixture. The hydrogen separator comprises a hydrogen gas-liquid separation device and a hydrogen coalescing device. The oxygen separator comprises an oxygen gas-liquid separation device and an oxygen coalescing device.

VERFAHREN ZUR STEUERUNG EINES SYSTEMS ZUR ERZEUGUNG VON GRÜNEM WASSERSTOFF

Resumen de: DE102024103045A1

Verfahren zur Steuerung eines Systems zur Erzeugung von grünem Wasserstoff, wobei mehrere Photovoltaikanlagen (12) und mehrere Windenergieanlagen als Stromerzeugungseinheiten zur Erzeugung von elektrischer Energie und mindestens ein Elektrolyseur zur Erzeugung von grünem Wasserstoff genutzt werden, wobei die installierte Leistung (IC) des Elektrolyseurs und aller anderen energieverbrauchenden Vorrichtungen in dem Kraftwerk kleiner ist als die Leistung der Summe der maximalen Leistung (MC) der Photovoltaikanlagen (12) und der Windenergieanlagen zusammen, mit folgenden Schritten:a) Definition eines Energiebedarfswerts (EBW) der für den Elektrolyseur und andere Verbraucher erforderlichen elektrischen Leistung, wobei EBW < IC ist;b) Überwachung der Wetterverhältnisse in der Nähe der Stromerzeugungseinheiten und in Luv der Photovoltaikanlagen (12);c) Berechnung eines erwarteten Energieertragswerts (EEW) für jeden Typ von Stromerzeugungseinheit basierend auf den Wetterverhältnissen;d) Zuweisen einer individuellen Arbeitslast für die Photovoltaikanlagen (12) und die Windenergieanlagen, die nach dem folgenden Priorisierungsschema ausgewählt wird:i. wenn der erwartete Energieertragswert EEW(PV) der Photovoltaikanlagen (12) allein ausreicht, um den Energiebedarfswert EBW zu erfüllen, werden alle Photovoltaikanlagen (12) mit Volllast betrieben und alle Windenergieanlagen im Leerlauf betrieben oder abgeschaltet;ii. Wenn der erwartete Energieertragswert EEW(PV) der Photovolt

MEMBRANELEKTRODENANORDNUNG MIT ABGESTUFTER GASREKOMBINATIONSSCHICHT

Resumen de: DE102024109660A1

Eine Membranelektrodenanordnung umfasst einen Kathodenabschnitt, der an einem Ende angeordnet ist, und einen Anodenabschnitt, der an einem dem Kathodenabschnitt gegenüberliegenden Ende angeordnet ist. Die Membranelektrodenanordnung umfasst auch eine Kathoden-Ionomerschicht, die neben dem Kathodenabschnitt angeordnet ist, und eine Anoden-Ionomerschicht, die neben dem Anodenabschnitt angeordnet ist. Ferner kann die Membranelektrodenanordnung eine oder mehrere Trägerschichten enthalten, die zwischen der Kathoden-Ionomerschicht und der Anoden-Ionomerschicht angeordnet sind. Zudem enthält die Anoden-Ionomerschicht eine Vielzahl von Gasrekombinationskatalysatoren in einer abgestuften Dispersion, sodass ein Abschnitt der Anoden-Ionomerschicht, der näher am Anodenabschnitt angeordnet ist, eine höhere Konzentration an Gasrekombinationskatalysatoren enthält als ein Abschnitt der Anoden-Ionomerschicht, der näher am Kathodenabschnitt angeordnet ist.

METHOD FOR PRODUCING AN ELECTRODE HAVING A NOBLE METAL CATALYST FOR ALKALINE WATER ELECTROLYSIS

Resumen de: WO2025162752A1

A method is disclosed for producing an electrode (4) having a noble metal catalyst for alkaline water electrolysis. The method comprises: (S1) providing the electrode substrate (1); (S2) providing a matrix material (2) and a catalyst material (3) as starting materials for the coating; (S3) mixing the matrix material (2) and the catalyst material (3); and, (S4) coating the substrate (1) with the mixture of matrix material (2) and catalyst material (3) by means of high-velocity oxygen fuel spraying (HVOF). A correspondingly produced electrode (4), an electrochemical cell (10) comprising said electrode, and an electrolyser (20) are also specified.

アルカリ水電解用電解触媒の製造方法

Resumen de: CN119604469A

The present invention relates to a method for manufacturing an electrocatalyst for alkaline water electrolysis, said method comprising the steps of: (i) generating an aqueous electrolyte comprising suspended graphene and graphite nanoplatelets having lt in an electrochemical cell; the present invention relates to an electrolytic cell having a thickness of 100 nm, where the electrolytic cell comprises: a graphite negative electrode, (b) a graphite positive electrode, (c) an aqueous electrolyte comprising ions in a solvent, the ions comprising cations and anions, where the anions comprise sulfate anions; and wherein the method comprises the step of passing an electric current through the electrolysis cell to obtain exfoliated graphene and graphite nanosheet structures in the aqueous electrolyte in an amount greater than 5 g/l; (ii) forming an electroplating bath (2) comprising suspended graphene and graphite nanoplatelets in an amount greater than 2 g/l, said acidic electroplating bath comprising an aqueous solution of nickel sulfate and an electroplating solution comprising suspended graphene and graphite nanoplatelets in an amount greater than 5 g/l (thickness lt; 100 nm) of an aqueous electrolyte of step (i); and (iii) electrodepositing a combined layer of Ni or Ni alloy with graphene and graphite particles from the electroplating bath on a support to form an electrocatalyst.

ELECTROLYSIS PLANT WITH MUTUALIZATION AND MODULARIZATION FOR HYDROGEN PRODUCTION

Resumen de: WO2025163393A1

A hydrogen production facility is disclosed, comprising: a plurality of electrolysis systems to electrolyze water using lye; and a mutualized lye circulation system coupled with the plurality of electrolysis systems to circulate the lye among the plurality of electrolysis systems to facilitate electrolyzing the water, the lye circulation system comprising one or more pumps, wherein a number of the one or more pumps is less than a number of electrolysis systems of the plurality of electrolysis systems. A hydrogen production facility comprising first and second modular structures is also disclosed.

SODIUM FORMATE HYDROGEN EXTRACTION SYSTEM OPERATION AND PRODUCTION OF HYDROGEN AND METHANOL

Resumen de: WO2025165433A2

An integrated energy system comprising a power plant including at least one nuclear reactor and electrical power generation system, the at least one nuclear reactor being configured to generate steam, and the electrical power generation system being configured to generate electricity, a desalination system configured to receive at least a portion of the electricity and steam to produce brine, an electrolysis process configured to process the brine into Sodium Hydroxide (NaOH), a Sodium Formate (HCOONa) production process configured to receive the Sodium Hydroxide (NaOH) to produce Sodium Formate (HCOONa), a Hydrogen (H2) extraction reactor configured to receive the Sodium Formate (HCOONa) and produce Hydrogen (H2), and a fuel cell configured to receive the Hydrogen (H2).

CO2 MITIGATION SYSTEM AND METHOD OF USE

Resumen de: WO2025165427A1

Herein discussed is a method of carbon capture comprising providing a reactor having an anode, a cathode, and an electrolyte between and in contact with the anode and the cathode, wherein the electrolyte conducts oxide ions and electrons; introducing a carbonaceous gas to the anode; introducing steam and hydrogen (H2) or carbon dioxide (CO2) and carbon monoxide (CO) to the cathode, wherein steam or CO2 is the dominant component; producing carbon dioxide (CO2) at the anode, wherein the CO2 partial pressure is greater than 18 kPa in the anode exhaust; and producing H2 or CO or both at the cathode. In an embodiment, the anode exhaust has a pressure of from 1 atm to 5 atm. In an embodiment, the CO2 content in the anode exhaust is from 20vol% to 100vol%.

HIGH-EFFICIENCY HYDROGEN PRODUCTION SYSTEM BY DIRECT AIR CAPTURE METHOD USING RENEWABLE ENERGY

Resumen de: WO2025165039A1

The present invention relates to a high-efficiency hydrogen production system by a direct air capture method using renewable energy. According to an embodiment of the present invention, the high-efficiency hydrogen production system comprises: a direct air capture device in which a chemical reaction occurs when an alkaline liquid mixture containing a specific component, such as potassium hydroxide or sodium hydroxide, is brought into contact with air, to capture carbon dioxide from the air; an electrolysis tank into which pure water and the sodium carbonate or potassium carbonate solution generated in the process of the chemical reaction for capturing carbon dioxide in the direct air capture device are introduced and then electrolyzed by using renewable energy including solar or wind power generation energy, to generate a gas containing hydrogen and a liquid containing potassium hydroxide or sodium hydroxide and separate and extract the generated gas and liquid; a gas storage tank in which the gas separated and extracted from the electrolysis tank is stored; and a liquid storage tank in which the remaining liquid after the gas is separated and extracted from the electrolysis tank is stored and potassium hydroxide or sodium hydroxide contained in the liquid is reintroduced into the direct air capture device.

COMPOSITE, HYDROGEN GENERATION CATALYST, CATALYTIC INK, ELECTRODE, AND METHOD FOR PRODUCING COMPOSITE

Resumen de: WO2025164180A1

This composite comprises a molybdenum compound and a noble metal. The molybdenum compound is at least one compound selected from the group consisting of molybdenum sulfide and molybdenum carbides, and the noble metal is at least one metal selected from the group consisting of platinum and palladium.

HYDROGEN PRODUCTION SYSTEM AND METHOD FOR CONTROLLING HYDROGEN PRODUCTION SYSTEM

Resumen de: WO2025164073A1

Provided is a hydrogen production system (100) which comprises: an electrolysis module (19) that supplies steam to a hydrogen electrode and produces hydrogen through steam electrolysis; a steam supply unit (20) that supplies steam to a hydrogen electrode (11); an air supply unit (70) that supplies air to an oxygen electrode (12); a hydrogen supply pipe (43) that supplies hydrogen to the oxygen electrode (12); a power supply unit (18) that supplies power to the electrolysis module (19); and a control device (80) that controls the hydrogen production system (100). The control device (80) controls the power supply unit (18) so as to start supplying power to the electrolysis module (19) in response to the temperature of the electrolysis module (19) exceeding Temp4 that is lower than the ignition temperature of hydrogen.

A MULTIPURPOSE INTEGRATED PASSIVE SYSTEM FOR CONVERTING GREEN ENERGY

Resumen de: WO2025163609A1

The present invention provides a multipurpose integrated passive system (20) for converting green energy comprising a renewable energy conversion module (1) to generate electricity, a water and gas management module (3) to supply water to the water electrolyser (4), a water electrolyser (4) connected with one or more potassium hydroxide (KOH) tank (4a, 4b), is configured to split water into hydrogen gas and oxygen gas and said gases are separately directed into the storage assembly (5). The storage assembly (5) include a plurality of gas storage tanks (5a, 5b) for separately storing the gases and a plurality of valves for controlling the flow of said gases, a burner assembly (6) include a hydrogen burner (7), wherein the hydrogen gas from the gas storage tank (5a) is delivered to the hydrogen burner (7), and a controller (2) configured to ensures to safety and efficiency of the multipurpose integrated passive system (20).

OXYGEN EVOLUTION REACTION CATALYST, PREPARATION METHOD THEREFOR, AND USE THEREOF

Resumen de: WO2025162048A1

The present application belongs to the technical field of hydrogen production by water electrolysis, and particularly relates to an oxygen evolution reaction catalyst, a preparation method therefor, and the use thereof. The present application uses the hydrolysis effect of metal positive ions in a hydrolysable metal salt solution to make a weakly-acidic heterogeneous soaking system, which slowly acts on the surface of a metal substrate, thereby partially etching the surface of the metal substrate while removing metal oxides on the surface; on the surface of the substrate, metal ions generated by the etching bind to metal ions generated by hydrolysis, so as to form an LDH catalyst structure, ensuring a relatively high catalytic activity thereof. Moreover, under an interface-confined effect, a compact transition layer structure is slowly formed at the interface between the metal substrate and the catalyst layer; as a bridge of the metal substrate and the catalyst layer, said transition layer has the same structure as that of the LDH, but exhibits a more compact appearance and totally covers the surface of the metal substrate, so as to firmly anchor the LDH catalytic structure layer onto the surface of the metal substrate, thereby allowing the OER catalyst to have high activity and high stability under the condition of an industrial-level current density.

Catalyst for ammonia decomposition reaction and method for producing hydrogen from ammonia using the catalyst

Resumen de: KR20250119099A

본 개시는 암모니아 분해반응용 촉매 및 이를 이용하여 암모니아로부터 수소를 제조하는 방법에 관한 것이다. 본 개시에 따른 촉매는 알루미늄 산화물, 란타넘 산화물 또는 이들의 조합을 포함하는 지지체; 루테늄, 코발트, 니켈 또는 이들의 조합을 포함하는 활성금속; 및 알칼리 토금속 및 알칼리 금속에서 선택된 한 종류 이상의 증진제;를 포함하며, 상기 활성금속 및 증진제는 지지체에 담지된 것이다. 상기 촉매는 우수한 활성을 가져 암모니아 분해 반응에서 종래보다 높은 암모니아의 전환율 및 수소 제조효율을 나타낼 수 있다.

MXene nanosheet hybrid composite manufacturing method thereof and electrochemical catalyst including the same

Resumen de: KR20250119417A

본 발명의 일실시예는 금속-양이온-맥신 나노시트 혼성체를 제공할 수 있다. 본 발명의 실시예에 따르면, 금속 입자/양이온/맥신 나노시트로 구성되는 혼성체를 제공함으로써, 높은 전류값과 낮은 과전압을 가진 우수한 전기화학적 성능을 갖는 수소발생반응 촉매를 제공할 수 있는 특징이 있다.

Monitoring system for water electrolysis device and method for monitoring water electrolysis device using the same

Resumen de: KR20250119076A

본 발명의 일 측면에 따르면, 수전해 장치의 전극 상태를 지속적이고 효과적으로 모니터링 할 수 있는 수전해 장치의 모니터링 시스템 및 이를 이용한 수전해 장치의 모니터링 방법을 제공할 수 있다.

ELECTRODE PLATE FRAME AND ELECTROLYTIC BATH

Resumen de: WO2025162027A1

Disclosed in the present application are an electrode plate frame and an electrolytic bath, which relate to the technical field of electrolytic hydrogen production and are used for solving the problem of leakage at the joint of an electrode plate frame and an external pipeline. The electrode plate frame comprises an annular frame body, one or more fluid inlets/outlets being formed in the outer circumferential surface of the annular frame body, and mounting holes being formed in the positions on the outer circumferential surface of the annular frame body around each fluid inlet/outlet, such that each fluid inlet/outlet and the corresponding mounting holes form a flange structure to be connected to an external pipeline. Compared with the existing practice of welding a pipeline at fluid inlet/outlets, the fluid inlets/outlets in the annular frame body of the present application do not need welding and have no welding spot, thereby preventing generation of stress corrosion, further preventing the phenomenon of galvanic corrosion caused by a welding material being different from materials of a pipeline and an electrode plate frame during welding, and reducing the risk of leakage at the joint of the electrode plate frame and the external pipeline.

PROCESS AND MEMBRANE

Resumen de: CN119866394A

A method for producing an ion conducting membrane comprising a membrane layer comprising a reconstitution catalyst. The film layer is made from an ink comprising a stabilized dispersion of reconstitution catalyst nanoparticles. Also provided are ion conducting membranes for electrochemical devices, such as fuel cells or water electrolysers, having a membrane layer comprising a reconstitution catalyst, the membrane layer comprising dispersed reconstitution catalyst nanoparticles, a nanoparticle stabilizer, and an ion conducting polymer.

공정 및 막

Nº publicación: KR20250118833A 06/08/2025

Solicitante:

존슨맛쎄이하이드로젠테크놀로지스리미티드

Resumen de: CN119866394A

A method for producing an ion conducting membrane comprising a membrane layer comprising a reconstitution catalyst. The film layer is made from an ink comprising a stabilized dispersion of reconstitution catalyst nanoparticles. Also provided are ion conducting membranes for electrochemical devices, such as fuel cells or water electrolysers, having a membrane layer comprising a reconstitution catalyst, the membrane layer comprising dispersed reconstitution catalyst nanoparticles, a nanoparticle stabilizer, and an ion conducting polymer.