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WATER ELECTROLYZER WITH CATION EXCHANGE MEMBRANE

Resumen de: US20260168115A1

0000 An alkaline water electrolyzer (AWE) incorporates a cation-exchange membrane (CEM) instead of a conventional porous diaphragm or an anion-exchange membrane used in the conventional AWE. The corresponding change in the nature of the charge carrier from the hydroxyl anion (OH<−>) in the conventional AWE to an alkali cation (A<+>) has a substantial effect on the electrochemistry and performance of the resulting CEM-alkaline water electrolyzer (CEM-AWE). The water electrolysis device combines advantages of: 1) non-PGM (precious group metal) catalysts involved in L-AWE (liquid alkaline water electrolyzer) and in AEM-AWE (anion exchange membrane-AWE), and 2) higher efficiency, differential pressure operation, responsiveness, and long-life of PEM-WE (proton-exchange membrane water electrolyzer). The novel water electrolyzer combines advantages of the two in the CEM-AWE involving non-PGM catalysts, graphite/SS PTLs and bipolar plates. Conventional approaches to electrolysis based hydrogen generation have not employed a CEM in an AWE.

INTEGRATED SYSTEM FOR ELECTROSYNTHESIS OF CO AND RELATED METHODS

Resumen de: WO2026128441A1

An integrated electrolysis system for electrochemically converting CO2 to CO is provided, the system comprising a pH downshifter comprising: an anode inlet configured to deliver a post-capture liquid comprising carbonate anions and having an alkaline pH to an anode of the pH downshifter; the anode configured to induce a hydrogen oxidation reaction that generates protons and converts the post-capture liquid to an anolyte comprising bicarbonate anions and having a reduced pH as compared to the alkaline pH of the postcapture liquid; a cathode in electrical communication with the anode, the cathode configured to induce a hydrogen evolution reaction that generates hydroxide anions; a cation exchange membrane between the anode and the cathode; and an anode outlet configured to deliver the anolyte to a bicarbonate electrolyzer.

SOLID POLYMER ELECTROLYTE MEMBRANE, MEMBRANE-ELECTRODE ASSEMBLY, WATER ELECTROLYSIS DEVICE, METHOD FOR PRODUCING HYDROGEN, AND METHOD FOR PRODUCING SOLID POLYMER ELECTROLYTE MEMBRANE

Resumen de: WO2026127017A1

The present invention provides a solid polymer electrolyte membrane which has high durability during electrolysis and excellent proton conductivity.　Provided is a solid polymer electrolyte membrane which contains a fluorine-containing polymer that comprises a unit having two or more ion exchange groups, wherein: the ion exchange capacity of the fluorine-containing polymer is 0.70-1.55 milliequivalents/g dry resin; and in the infrared spectrum obtained by measuring the fluorine-containing polymer by infrared spectroscopy, the ratio of the maximum absorbance I1690 at 1,690 ± 10 cm-1 to the maximum absorbance I2350 at 2,350 ± 30 cm-1 is 0.150 or less.

SOLID OXIDE CELL

Resumen de: US20260171553A1

0000 A solid oxide cell includes a fuel electrode, an air electrode, and an electrolyte disposed between the fuel electrode and the air electrode, in which the fuel electrode includes an electron-conductive needle-shaped particle, and the needle-shaped particle includes an Fe-Ni-based alloy. A length of a major axis of the needle-shaped particle may be at least 1.5 times a length of a minor axis of the needle-shaped particle.

ELECTROCHEMICAL CELL STACK AND POROUS CONDUCTOR FOR ELECTROCHEMICAL DEVICE

Resumen de: US20260171432A1

0000 An electrochemical cell stack including: first and second separators; an electrochemical cell disposed between the first and second separators; and a porous conductor disposed on at least one side of the electrochemical cell, wherein the porous conductor includes a metal mesh and a porous metal body formed within pores of the metal mesh.

HYDROGEN PRODUCTION APPARATUS

Resumen de: WO2026126396A1

A hydrogen production apparatus according to one aspect of the present disclosure comprises: a means for irradiating a metal oxide in a solution with laser light and reducing the metal oxide; a means for separating and transporting the reduced metal; a means for reacting the reduced metal with water and generating hydrogen; and a step for recovering the generated hydrogen.

Kühlfeld für ein stapelförmig aufgebautes elektrochemisches System und Elektrolyseur

Resumen de: DE102024137556A1

Die Erfindung betrifft ein Kühlfeld (1) für ein stapelförmig aufgebautes elektrochemisches System (10), insbesondere einen Elektrolyseur, und weist mindestens einen Kühlmitteleinlass (2) und mindestens einem im Vergleich hierzu größeren Kühlmittelauslass (3), insbesondere jeweils zwei derartige Ein- und Auslässe (2, 3), auf, wobei zwischen dem Kühlmitteleinlass (2) und dem Kühlmittelauslass (3) ein Einlassbereich (4), ein Hauptströmungsfeld (7) und ein Auslassbereich (9) gebildet sind, wobei das Hauptströmungsfeld (7) einen mittigen Einschnürungsbereich (8) aufweist, und wobei im mittigen Einschnürungsbereich (8) Kanäle (13) gebildet sind, welche in dem betreffenden Bereich parallel zueinander verlaufen, wogegen zwischen dem Einschnürungsbereich (8) und den Übergängen (14, 15) zum Einlassbereich (4) beziehungsweise Auslassbereich (9) mehrere mindestens einfach abgeknickte Kanalabschnitte (16, 17) vorliegen, und wobei auf der Seite des Kühlmitteleinlasses (2) eine Rippenstruktur (18) und auf der Seite des Kühlmittelauslasses (3) eine Pinstruktur des jeweiligen Ein- beziehungsweise Auslassbereichs (2, 3), jeweils unter Wahrung eines Abstandes zu den genannten Kanalabschnitten (16, 17), dem Hauptströmungsfeld (7) benachbart ist.

USE OF A HIGH-TEMPERATURE RESISTANT ALLOY IN AN AMMONIA CRACKING PLANT

Resumen de: WO2026125185A1

Use of a high-temperature resistant alloy for making at least one equipment part of an ammonia cracking plant, wherein said at least one equipment part is exposed to a pressure of 1 to 100 bar, to a temperature of 500 to 1150 °C and to contact with a stream having an ammonia content that ranges from 5% to 100% by volume; wherein said alloy comprises 30% to 50% by weight of nickel and 20% to 40% by weight of chromium.

REACTOR DESIGNS FOR PHOTOCATALYTIC O2 EVOLUTION FROM WATER WITH INTEGRATED GREEN H2 COMPRESSION

Resumen de: WO2026128914A1

A safe and scalable solar particle-based PEC water splitting system that has a photoreactor that drives half-Z-Scheme photosynthetic O2 evolution from water coupled with reduction of the oxidized form of a redox mediator. This now-reduced redox mediator is then transported to an integrated second unit operation, a dark galvano-catalytic compressor that spontaneously evolves H2 at increased pressure, driven by oxidation of the reduced form of the redox mediator. By coupling an H2 compressor technology with intrinsically safe particle-based PEC approaches, and the ability to spatially control deposition of semipermeable ultrathin oxide coatings, a new reactor was developed with significant decrease in both complexity and materials requirements that is projected to generate green H2 at unprecedented low costs, in a form factor that is easily deployed, thus increasing U.S. energy and chemical resiliency.

IRIDIUM-CONTAINING MANGANESE OXIDE

Resumen de: WO2026126782A1

Provided are at least one of: an iridium-containing manganese oxide exhibiting higher oxygen evolution electrocatalytic activity compared to conventional iridium-containing manganese oxides; a catalyst comprising the same; an electrode comprising the catalyst; a water electrolysis cell equipped with the electrode; and a water electrolysis method using the water electrolysis cell.　An iridium-containing manganese oxide having a crystal structure of β-type MnO2, wherein the full width at half maximum of the XRD peak corresponding to the (211) plane of β-type MnO2 is 0.65° or more and 1.05° or less.

化合物、それを含んでなる光触媒、及び水素の製造方法

Resumen de: JP2026099650A

【課題】光吸収と酸化還元能とを併せ持つ、光触媒として有用な化合物を提供する。【解決手段】下記一般式（１）で表す化合物である。Ｒは置換基を有してもよい炭素数５～３０のアリール基であり、Ｒ１は炭素数１～３０のアルキル基であり、Ｘは一般式（２ａ）若しくは（２ｂ）で表す特定基、水素原子又はＲ１であって、少なくとも１つのＸは特定基であり、ｐは１～１０の整数であり、ｍは０～２の整数であり、ｎは０～２の整数である。一般式（２ａ）中、ＭはＰｔ、Ｐｄ又はＮｉであり、Ｌは－ＯＨ２、－ＮＨ３又はハロゲン原子である。一般式（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。TIFF2026099650000021.tif48142【選択図】なし

水素生成システム

Resumen de: JP2026099527A

0001 【課題】少ないエネルギー消費で改質器におけるアンモニアを加熱することができる技術を提供する。 【解決手段】水素生成システムは、アンモニアの改質により水素を生成する改質器と、アンモニアのアンモノリシス反応により水素を生成する反応装置と、反応装置で生成される水素を燃焼させることにより高温の水蒸気を生成する燃焼器と、燃焼器で生成される高温の水蒸気の熱により改質器におけるアンモニアを加熱する加熱器と、を備えている。 【選択図】図１

アンモニア処理システム

Resumen de: JP2026099531A

【課題】簡潔な構成で水素の生成と水素化アルカリ金属の再生とを行うことができる技術を提供する。【解決手段】アンモニア処理システムは、水素化アルカリ金属を反応物質として含む反応器と、アンモニアの改質により高温の水素を生成する改質器と、改質器で生成される高温の水素を反応器に供給する第１供給路と、を備え、反応器にアンモニアを供給する第１運転と、改質器にアンモニアを供給すると共に改質器で生成される高温の水素を第１供給路により反応器に供給する第２運転と、を実行可能であり、第１運転では、反応器おいて水素化アルカリ金属とアンモニアとのアンモノリシス反応により水素が生成され、第２運転では、反応器おいてアンモノリシス反応の逆反応により水素化アルカリ金属が再生される。【選択図】図１

SOLID OXIDE CELL

Resumen de: US20260171428A1

0000 A solid oxide cell includes a fuel electrode, an air electrode, and an electrolyte disposed between the fuel electrode and the air electrode, in which the fuel electrode includes a plurality of first pores having a bowl shape and second pores disposed within the bowl.

DEHYDROGENATION REACTION SYSTEM AND CONTROL METHOD THEREOF

Resumen de: US20260167488A1

0000 An apparatus of a fuel cell system may comprise a dehydrogenation reactor configured to generate hydrogen gas based on a chemical reaction of a chemical hydride and an aqueous acid solution, an acid aqueous solution tank configured to supply the acid aqueous solution to the dehydrogenation reactor, a chemical hydride tank configured to supply the chemical hydride to the dehydrogenation reactor, a hydrogen tank configured to store the hydrogen gas under a first pressure, a hydrogen back pressure regulator along a hydrogen discharge path, a product tank configured to store a product generated in the dehydrogenation reactor, a processor, and a memory storing at least one instruction to control a pressure of the dehydrogenation reactor to maintain a reference pressure by supplying an acid aqueous solution or water before product discharge.

ELECTROCATALYST AND ELECTROLYSER COMPRISING THE SAME

Resumen de: WO2026123080A1

Disclosed herein is an electrocatalyst comprising a ruthenium and/or iridium-based host material and a doping metal. It can be used in a water electrolyser (such as proton exchange membrane water electrolyser) with reverse osmosis (RO) treated seawater being used as feed water.

DEHYDROGENATION REACTOR AND APPARATUS INCLUDING THE SAME

Resumen de: US20260166512A1

0000 An apparatus of a reactor may comprise a first housing configured to accommodate one of a chemical hydride or an acid aqueous solution, a second housing configured to accommodate the other of the chemical hydride or the acid aqueous solution, wherein the second housing is different from the first housing, and a coupling assembly configured to selectively and fluidly connect the first housing and the second housing.

HYDROGEN AND ALUMINUM SALT PRODUCTION VIA ALUMINUM-WATER REACTION

Resumen de: US20260167486A1

The systems, compositions, and methods herein provide hydrogen and aluminum salt production through the reaction of aluminum with water, using anion donor chemicals and a corrosion agent, which eliminates the need for pre-activating aluminum and avoids the formation of water-insoluble aluminum hydroxide. Water can be combined with dissolved anion donor chemicals, a corrosion agent, and aluminum in a reaction vessel. The corrosion agent corrodes an aluminum oxide layer on the aluminum, exposing raw aluminum (Al0) to water, and initiating a reaction that produces hydrogen gas, heat, and water-soluble aluminum salts. The evolved hydrogen can be captured for immediate use or storage. The produced aluminum salts can be removed and purified for use as a precursor chemical in various industrial applications. Related apparatus, techniques, and articles are also described.

SYSTEM AND METHOD FOR PRODUCING HYDROGEN H2 FROM PROTOTYPE/VALIDATION TESTING OF GAS TURBINE

Resumen de: WO2026125008A1

A gas turbine test bench system (100, 200, 300) for producing hydrogen from prototype/validation testing comprising a gas turbine engine (10) and an electric power generator (20) electrically decoupled from any electric grid, the gas turbine engine (10) being mechanically coupled to the electric power generator (20) so to transmit mechanical energy to the electric power generator (20) and the electric power generator (20) being configured to transform mechanical energy into electrical energy, generating at least a first electrical energy flow (EE1). The system (100, 200, 300) further comprises an electrolyzer (30) electrically coupled to the electric power generator (20) and configured to receive a first electrical energy flow (EE1) from the electric power generator (20). The electrolyzer (30) is configured to use at least the first electrical energy flow (EE1) to perform electrolyzation of water so to generate a hydrogen flow (H2).

PRODUCTION OF H2 FROM METHANOL FOR A SOLID OXIDE ELECTROLYSIS CELL

Resumen de: WO2026125486A1

The present invention relates to a method for operating a solid oxide electrolysis cell (SOEC) stack, the SOEC having a fuel (cathode) side and an oxy (anode) side. The SOEC stack is adapted for at least steam electrolysis to hydrogen. The invention further relates to a system and a plant suitable for carrying out the method. Specifically, the invention relates to using methanol as a reducing agent or using methanol for supplying a reducing agent in an SOEC.

SEPARATOR, ELECTROLYSIS CELL, AND HYDROGEN PRODUCTION DEVICE

Resumen de: WO2026126400A1

This separator is used in an electrolysis cell that produces hydrogen from water contained in a conductive fluid, and comprises a plate-like main body. The main body comprises: an electrolysis region which is disposed in a central part of a first surface of the main body; a manifold which is formed in an outer peripheral part that surrounds the central part on the first surface, and which penetrates the main body; and a flow path which connects the electrolysis region and the manifold to each other. The flow path comprises a tunnel part which is connected to the inner circumferential surface of the manifold inside the main body.

SEPARATOR, ELECTROLYSIS CELL, AND HYDROGEN PRODUCTION DEVICE

Resumen de: WO2026126399A1

This separator is used in an electrolysis cell that produces hydrogen from water contained in a conductive fluid, and this separator comprises a conductive plate and an insulating layer that covers a part of the conductive plate. The conductive plate is provided with: an electrolysis region which is formed in a central part of a first surface of the conductive plate; and a supply manifold which is formed in an outer peripheral part that surrounds the central part on the first surface, and which penetrates the conductive plate. The insulating layer is provided with: a first covering part which covers the inner peripheral surface of the supply manifold; and a second covering part which forms a groove-shaped supply path that connects from the supply manifold to the electrolysis region. The electrolysis region is exposed from the insulating layer.

ALKANES DEHYDROGENATION PROCESS WITH HYDROGEN COFEEDING

Resumen de: WO2026124965A1

The disclosure concerns an alkane dehydrogenation process remarkable in that it comprises the steps of (a) providing a first stream comprising one or more alkanes; (b) providing a second stream comprising hydrogen; (c) mixing the first stream and the second stream so as to generate a feedstream; (d) providing at least one proton-conducting catalytic membrane, each proton-conducting catalytic membrane comprising an anode, an electrolyte layer disposed on top of the anode and a porous cathode disposed on top of the electrolyte layer; (e) feeding within the anode of said one or more proton-conducting catalytic membranes under alkane dehydrogenation conditions the feedstream generated at step (c); and (f) recovering a first effluent comprising at least one or more alkenes.

FLOW BATTERY DEVICE FOR RECOVERING LI+, AND RECOVERY METHOD

Resumen de: WO2026123931A1

Disclosed in the present application are a flow battery device for recovering Li+ and a recovery method. In the present invention, a waste LiFePO4 solid wrapped by a porous PTFE filter membrane is placed on one side of a positive electrode electrolyte of a flow battery, such that the positive electrode electrolyte in an oxidized state can penetrate through the filter membrane to be in full contact and react with LiFePO4. The electrolyte of the positive electrode oxidizes LiFePO4 into Li+ and FePO4 by means of an oxidation reaction, and the generated Li+ enters the electrolyte and penetrates through the membrane to reach one side of the negative electrode in the form of a supporting electrolyte; in addition, the membrane material has strong selectivity for Li+, ensuring that the other ions cannot penetrate through the membrane. The electrode surface of the negative electrode of the flow battery is coated with a hydrogen evolution catalyst to perform a hydrogen evolution reaction and recover hydrogen, thereby achieving the dual purpose of recovering Li+ and producing hydrogen by means of electrolysis. A new LiFePO4 electrode material is re-obtained by means of calcination, etc., from the FePO4 produced at the positive electrode and the Li+ product obtained at the negative electrode, and is used in a lithium-ion battery.

DEVICE FOR PREPARATION OF P-BENZOQUINONE BY MEANS OF ELECTROCATALYTIC OXIDATION OF HYDROQUINONE COUPLED WITH CATHODE HYDROGEN PRODUCTION BY MEANS OF WATER ELECTROLYSIS, AND USE THEREOF

Nº publicación: WO2026123932A1 18/06/2026

Solicitante:

DALIAN INST OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES [CN]
\u4E2D\u56FD\u79D1\u5B66\u9662\u5927\u8FDE\u5316\u5B66\u7269\u7406\u7814\u7A76\u6240

Resumen de: WO2026123932A1

The present invention provides a device for the preparation of p-benzoquinone by means of electrocatalytic oxidation of hydroquinone coupled with cathode hydrogen production by means of water electrolysis, and the use thereof. The hybrid water electrolysis system comprises an electrolyte, a separator, a membrane electrode, and an electrode plate having flow channels. In the present invention, an anodic oxygen evolution reaction (OER) in water electrolysis is replaced by the oxidation of hydroquinone, which can significantly reduce the voltage of the system. The electrocatalytic oxidation of hydroquinone to produce p-benzoquinone may be carried out under the condition of 0.7 V (vs. RHE), and compared with 1.8 V for OER, the electrical energy consumption of the system is reduced by nearly two-thirds. In the present invention, by means of selecting or synthesizing a catalyst, selecting a suitable ion exchange membrane, controlling the system voltage, etc., the system voltage for the electrocatalytic oxidation of hydroquinone coupled with hydrogen production by means of water electrolysis is successfully reduced, and the obtained product is single p-benzoquinone with a higher economic value and can be separated and obtained simply by means of filtration.