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SIX-MEMBERED HIGH-ENTROPY FOAMS FOR HYDROGEN PRODUCTION BY WATER SPLITTING AND PREPARATION METHODS THEREOF

Resumen de: US2025122633A1

Six-membered high-entropy foam for hydrogen production by water splitting and preparation method are provided. The foam consists of Ni, Fe, Cu, Co, Mo, and Pt, comprising 10 at %-25 at % of Ni, 10 at %-25 at % of Fe, 10 at %-25 at % of Cu, 10 at %-25 at % of Co, 10 at %-25 at % of Mo, and 10 at %-25 at % of Pt. Catalyst loading of the foam can reach a range of 0.8 mg/cm2-3.2 mg/cm2, which is much higher than the effective catalyst loading of most nano-catalysts. When used as catalyst for hydrogen production by water splitting, the hydrogen evolution overpotential of the surface of the six-membered high-entropy foam is within a range of 36 mV-60 mV, and the foam operates stably at industrial-level current density (500 mA/cm2). The preparation method does not require harsh environment such as high temperature or high vacuum, making the method simple and easy to implement, with low-cost raw materials.

Method for Removing Nitrogen Compounds

Resumen de: US2025122630A1

The invention relates to a method for removing nitrogen compounds which includes electrolysing a urea derivative of general formula I: (R1,R2)N—C(═X)—N(R3,R4), wherein: X means NH, NR5 or S, R1, R2, R3, R4 and R5 can be the same or different, and have the meanings indicated in claim 1, or a polymer of the compound of formula I, in an aqueous medium, in at least one electrolytic cell comprising an anode that comprises a metal, wherein “metal” means one or more metals, one or more compounds of a metal or a mixture of metal compounds or combinations thereof, and comprising a metal cathode. Nitrogen is obtained as a result of the oxidation of the nitrogen compounds at the anode and hydrogen as a result of the reduction of the water at the cathode, with the condition that if the anode is made of platinum, the cathode is not made of platinum.

ELECTROMECHANICAL HYDROGEN GENERATOR

Resumen de: US2025122628A1

Embodiments are disclosed comprising an electromechanical device that generates hydrogen from mechanical energy without requiring an external source of electrical energy. In one embodiment, for example, the only external energy required is rotational energy and the necessary electrical energy for electrolytic dissociation of water is generated internally to the device. Various aspects of embodiments of the invention provide enhanced efficiency for generating hydrogen. Details of various embodiments are further described herein.

WO3-x@CdS1-y NANOCOMPOSITE-BASED ELECTROCATALYSTS FOR GENERATING HYDROGEN

Resumen de: US2025122627A1

A method of generating hydrogen including applying a potential of greater than 0 to 2.0 V to an electrochemical cell that is partially submerged in an aqueous solution. On applying the potential, water in the aqueous solution is reduced, and thereby forms hydrogen. The electrochemical cell includes an electrocatalyst and a counter electrode. The electrocatalyst includes a substrate, WO3−x nanosheets, and CdS1−y nanospheres, in which, x is from greater than 0 to less than 3 and y is from greater than 0 to less than 1. The CdS1−y nanospheres are dispersed on the WO3−x nanosheets to form a nanocomposite, which is dispersed on a surface of the substrate. The WO3−x nanosheets have an average length of 600-800 nanometers (nm) and an average width of 300-500 nm, and the CdS1−y nanospheres have an average diameter of 10-50 nm.

HYDROGEN AND ELECTRICAL POWER STORAGE

Resumen de: US2025122629A1

A mission configurable system for fuel generation is provided. The mission configurable system includes a mobility unit configured to support multiple fuel generation components customized to a specific mission. The fuel generation components can include at least one renewable energy generation system such as a hydrogen electrolyzer, a methane reformer, a solar panel, and/or a wind turbine.

ENDOTHERMIC REACTIONS HEATED BY RESISTANCE HEATING

Resumen de: US2025121344A1

A process for carrying out an endothermic reaction of a feed gas in a reactor system including a pressure shell housing a structured catalyst arranged for catalyzing the endothermic reaction of a feed gas, the structured catalyst including a macroscopic structure of electrically conductive material, the macroscopic structure supporting a ceramic coating, the ceramic coating supporting a catalytically active material.

Appliance for heating food and/or for emitting heat to the surroundings

Resumen de: US2025123002A1

In one aspect, an appliance for heating food, in particular a grill, and/or for emitting heat to the surroundings, in particular a heating appliance, includes at least one provision unit for providing hydrogen and at least one reaction unit for generating heat from the hydrogen. In one implementation, the reaction unit is designed as a catalytic unit for the flameless combustion of the hydrogen having at least one catalyst for catalyzing the hydrogen.

MOBILE HYDROGEN SUPPLY SYSTEM

Resumen de: US2025125653A1

A mobile hydrogen supply system includes a natural energy power generation device that generates electric power from natural energy, and a hydrogen generation device that generates hydrogen. The hydrogen generation device is operable on electric power generated by the natural energy power generation device, and the natural energy power generation device and the hydrogen generation device are transportable.

METAL FLUORIDE-FUNCTIONALIZED PROTON EXCHANGE SOLID SUPPORTS, MEMBRANES, AND IONOMERS

Resumen de: US2025125395A1

A metal fluoride-functionalized proton-exchange solid support includes a proton-exchange solid support comprising a substituent group including an oxygen atom, and a metal fluoride group comprising a multivalent metal atom covalently bonded to the oxygen atom included in the substituent group, wherein the metal atom has a negative formal charge.

POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY AND REDOX FLOW BATTERY

Resumen de: US2025125396A1

There is provided a composite electrolyte membrane for an electrochemical device, comprising at least one reinforced polymer electrolyte membrane having a first surface and an opposing second surface. The reinforced polymer electrolyte membrane comprises a microporous polymer structure and an ion exchange material, in which the ion exchange material is at least partially embedded within the microporous polymer structure to render the microporous polymer structure occlusive. The composite electrolyte membrane further comprises a plurality of porous layers comprising a first porous layer and a second porous layer, in which the first porous layer is adjacent to the first surface of the first reinforced polymer electrolyte and the second porous layer is adjacent to the second surface of the reinforced polymer electrolyte. Also disclosed is a membrane electrode assembly comprising such a composite electrolyte membrane and a redox flow battery, fuel cell, and electrolyzer comprising such a membrane electrode assembly.

Process and Apparatus for Sustainable Water Fuelled Vehicle

Resumen de: US2025125390A1

A sustainable water fueled process and apparatus where a Unipolar electrolysis of water is described and the hydrogen and oxygen are stored before feeding a hydrogen fuel cell which is capable of providing sufficient electricity to provide power to a drive a vehicle, power a generator etc, after supplying electricity to the Unipolar electrolyser and the storage of the hydrogen and oxygen.

SYSTEM AND METHOD FOR PRODUCING AMMONIA

Resumen de: AU2023349727A1

A system (1) for producing ammonia comprises an ammonia reactor (44) which is designed to produce ammonia (NH3) from a synthesis gas, the synthesis gas comprising hydrogen (H2) and nitrogen (N2), and the system also comprises an electrolizer (2) which is designed to produce hydrogen and oxygen from water, wherein: a compressor (6) is provided and is fluidically connected to the electrolizer (2) and is designed to compress the hydrogen (H2) coming from the electrolizer (2); and the compressor (6) is designed to compress mobile hydrogen (H2).

Arrangements and methods for proton exchange membrane devices

Resumen de: FI20236153A1

According to a first aspect of the present disclosure there is provided an arrangement (10) for a proton exchange membrane (PEM) device. The arrangement comprises the anode (13) of said PEM device, a hydrogen feed line (11,12) for feeding hydrogen to the anode (13), a circulation line (14) fitted in parallel with the anode of the PEM device for circulating part of the hydrogen from said feed line (12) past the anode, and at least one slip-stream filter (15) arranged on said circulation line (14) for removing impurities from the hydrogen. The slip-stream filter (15) at its input end is connected to said circulation line (14) via a first valve (16) and at its output end is connected to the fuel return outlet (18) of said anode. The fuel return outlet being in flow connection with a purge line (20) for the anode having a second valve (17). The slip-stream filter (15) during a regeneration process may be flushed with gas from said circulation line (14) through said second valve (17).

Wasserelektrolyseelektrode mit Ionomer, das in Poren des Nickel-Eisen-Katalysators gefüllt ist, und Verfahren zur Herstellung einer Wasserelektrolyseelektrode

Resumen de: DE102023127801A1

Die vorliegende Erfindung betrifft eine Wasserelektrolyseelektrode mit einem lonomer, das in Poren eines Nickel-Eisen-Katalysators gefüllt ist, und ein Verfahren zur Herstellung davon. Während des Galvanisierungsprozesses des Katalysators auf einem Substrat zur Herstellung der Wasserelektrolyseelektrode wird Wasserstoffgas entfernt, wodurch eine Porenstruktur innerhalb des Katalysators gebildet wird. Durch Füllen dieser Porenstruktur mit dem Ionomer ist es möglich, die Effizienz und Haltbarkeit der Wasserelektrolysevorrichtung zu verbessern.

Wasserstoffproduktionsanlage

Resumen de: DE102023128289A1

Die Erfindung betrifft eine Wasserstoffproduktionsanlage, umfassend mindestens eine erste Produktionslinie, umfassend zumindest eine erste Elektrolysevorrichtung mit einer Mehrzahl von ersten Elektrolysemodulen und eine erste Verdichtervorrichtung mit einer Mehrzahl von ersten Verdichtermodulen, eine Steuerung, umfassend zumindest ein Fahrplanerstellungsmodul und ein Steuermodul, wobei das Fahrplanerstellungsmodul eingerichtet ist zum Erstellen eines Ansteuerfahrplans zumindest für die ersten Elektrolysemodule und für die ersten Verdichtermodule, basierend auf jeweiligen Leistungskennlinien der jeweiligen ersten Elektrolysemodule, jeweiligen Leistungskennlinien der jeweiligen ersten Verdichtermodule und mindestens einem vorgegebenen Optimierungskriterium, und wobei das Steuermodul eingerichtet ist zum Ansteuern der ersten Verdichtermodule und der ersten Elektrolysemodule, basierend auf dem erstellten Ansteuerfahrplan.

CONTROL METHOD AND APPARATUS FOR HYDROGEN PRODUCTION DEVICE, DEVICE, AND MEDIUM

Resumen de: WO2025077747A1

A control method and apparatus for a hydrogen production device, a device, and a medium. The method comprises: acquiring electric energy information of an input current of a hydrogen production device (101); on the basis of the electric energy information, determining a predicted flow passing through fluid regulating valves in the hydrogen production device, wherein the fluid regulating valves comprise a high-frequency regulating valve and a low-frequency regulating valve which are arranged in parallel (102); and adjusting the opening degree of the low-frequency regulating valve on the basis of the predicted flow, a first flow selected from a flow range corresponding to a preset opening degree range of the high-frequency regulating valve, and a second flow corresponding to the current opening degree of the low-frequency regulating valve (103). When the input current fluctuates greatly, the opening degree of the low-frequency regulating valve is adjusted to reserve sufficient adjustable opening degree margin for the high-frequency regulating valve.

INTEGRATED PRODUCTION OF HYDROGEN AND FRESH WATER USING RENEWABLE ENERGY

Resumen de: WO2025080255A1

An apparatus for producing hydrogen from variable electric generators includes a variable output generator operatively coupled to a power supply. A plurality of electrolysis cells is operatively coupled to the power supply. A cooling water system removes heat from the cells, and includes a hot water tank for receiving and storing water heated by the cells and a cold water tank arranged to store cooled water for cooling the cells. An evaporative desalinator has a heat input in communication with the hot water tank and a cooled water output in communication with the cold water tank. The size of the tanks corresponds to variability of the electric generator, the maximum output of the generator and an operating rate of the desalinator. Part of water discharged from a fresh water output of the desalinator is used as feed input to the cells and the remainder is available for use as fresh water.

LITHIUM SALT PRODUCTION METHOD AND LITHIUM SALT PRODUCTION SYSTEM

Resumen de: WO2025079394A1

This lithium salt production method includes an adsorption step, a washing step, and a desorption step. In the adsorption step, a second electrode 2 and a first electrode 1 including an adsorbent (for example, λ-MnO2), are immersed in a raw material water 21 containing LiCl. By applying a first voltage between the first electrode 1 and the second electrode 2, Li+ is adsorbed on the first electrode 1. In the washing step, the first electrode 1 that has been subjected to the adsorption step is washed with a washing liquid 22 containing water. In the desorption step, the first electrode 1 that has been subjected to the washing step and a third electrode 3 are immersed in water 23 containing anions. A second voltage is applied between the first electrode 1 and the third electrode 3. As a result of the foregoing, Li+ is desorbed from the first electrode 1, H2 is formed on the third electrode 3, and a lithium salt is generated from Li+ and anions. The first voltage and/or the second voltage are generated by electric power derived from renewable energy.

WATER SPLITTING CELL FOR USE IN WATER SPLITTING DEVICE AND WATER SPLITTING DEVICE

Resumen de: WO2025079345A1

A water splitting cell that is a water electrolysis cell for use in a water splitting device that splits water and generates hydrogen when irradiated with light, said water splitting cell comprising: a laminate in which an anode, a perovskite battery cell, and a cathode are laminated in the given order; and an electrically insulating protective material which covers the outer periphery of the laminate.

ELECTROLYZER WITH PULSE WIDTH MODULATOR

Resumen de: WO2025080873A1

Disclosed herein are components of an electrolysis system and components and methods of operation thereof to improve electrolysis operations. The electrolysis system includes a pulse width modulation control system that adjusts voltage and current applied to an electrolytic cell by modulating a duty cycle of a high frequency waveform. The voltage and current are adjusted based on data provided by one or more feedback loops that monitor performance characteristics of the electrolyzer.

ZERO-GAP, MEMBRANE-LESS ELECTROLYSER FOR WATER SPLITTING IN HYDROGEN/OXYGEN PRODUCTION AND METHODS THEREOF

Resumen de: WO2025080121A2

The present invention discloses an electrolyser for water splitting in hydrogen/oxygen production and methods thereof. The electrolyser comprises a first electrode plate (100) coated with a first catalyst comprising a first ion transfer opening (101) formed therethrough along a first lateral axis of the first electrode plate (100); a second electrode plate (200) coated with a second catalyst comprising a second ion transfer opening (201) formed therethrough along a second lateral axis of the second electrode plate (200); and an electrically insulative adhesive layer (300) configured for securing together the first electrode plate (100) and the second electrode plate (200) in a face-to-face manner or a back-to-face manner, forming separate compartments each for a hydrogen gas and an oxygen gas resulting from the water splitting that provide immunity against any mixing of the hydrogen gas and the oxygen gas at any level of an electrical power supply.

連続アイオノマー相を有する一体型複合膜

Resumen de: US2023420718A1

Embodiments are directed to composite membranes having a microporous polymer structure, and an ion exchange material forming a continuous ionomer phase within the composite membrane. The continuous ionomer phase refers to absence of any internal interfaces in a layer of ionomer or between any number of layers coatings of the ion exchange material provided on top of one another. The composite membrane exhibits a haze change of 0% or less after being subjected to a blister test procedure. No bubbles or blisters are formed on the composite membrane after the blister test procedure. A haze value of the composite membrane is between 5% and 95%, between 10% and 90% or between 20% and 85%. The composite membrane may have a thickness of more than 17 microns at 0% relative humidity.

水素生産及び硫黄－炭素隔離

Resumen de: AU2023254123A1

Embodiments of the invention relate to producing hydrogen from a subsurface formation by injecting a reactant into the subsurface formation and reacting the reactant with the subsurface formation to form at least one of hydrogen gas or a mineralized product within the subsurface formation. The hydrogen produced is collected or one or more components of the reactant is sequestered to form a mineralized product in the subsurface formation. Other embodiments of the invention relate to producing hydrogen by injecting a thermal fluid into the subsurface rock formation, where the thermal fluid includes a reactant. The reactant is reacted with components in the subsurface formation to form at least one of hydrogen gas mineralized sulfur, or mineralized carbon.

酸素発生用電極

Resumen de: CN119137312A

An electrode for an oxygen evolution reaction suitable for water electrolysis under alkaline conditions, comprising a ceramic material having a stability coefficient (SF) between 1.67 < = SF < = 2.8, calculated by formula (II) wherein ro represents the ion radius of the oxide ion (O2-), rB, av represents the weighted average ion radius of the transition metal, nA, nB, av represents the weighted average ion radius of the transition metal, nA represents the ion radius of the oxide ion (O2-), nA represents the ion radius of the oxide ion (O2-), nA represents the ion radius of the oxide ion (O2-), and nA represents the ion radius of the oxide ion (O2-). Av represents the weighted average oxidation state of the rare earth metal or the alkaline earth metal, and rA and av represent the weighted average ion radius of the rare earth metal or the alkaline earth metal. The invention further relates to an alkaline electrolysis stack comprising at least one such electrode, and to a method for water electrolysis using the alkaline electrolysis stack.

化合物、それを含んでなる光触媒、及び水素の製造方法

Nº publicación: JP2025064132A 17/04/2025

Solicitante:

学校法人神奈川大学

Resumen de: JP2025064132A

【課題】有機化合物としての効率的な光吸収と金属元素による酸化還元能とを併せ持つ、光触媒として有用な新しい化合物を提供すること。【解決手段】下記一般式（１）で表す化合物を用いる。（各Ｒは独立に置換／非置換のＣ５～３０のアリール等；各Ｒ１は独立にＣ１～３０のアルキル等；各Ｘは独立に一般式（２ａ）又は（２ｂ）；ｐは１～１０、各ｍ、ｎは独立に０～２。式（２ａ）中、ＭはＰｔ、Ｐｄ又はＮｉであり、式（２ｂ）中、ＭはＮｉ又はＣｏであり、Ｌは－ＯＨ２、－ＮＨ３又はハロゲン原子である。）TIFF2025064132000019.tif53155【選択図】なし