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Electrolytic hydrogen

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LastUpdate Updated on 17/01/2026 [07:00:00]
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SYSTEM AND PROCESS FOR IMPROVING THE ELECTROLYSIS OF SALTWATER

Publication No.:  WO2026013303A1 15/01/2026
Applicant: 
THE UNIV COURT OF THE UNIV OF ABERDEEN [GB]
THE UNIVERSITY COURT OF THE UNIVERSITY OF ABERDEEN
WO_2026013303_PA

Absstract of: WO2026013303A1

The invention provides a system and process for facilitating the direct electrolysis of saltwater, such as seawater. The system comprises an acid-base flow battery comprising an acid solution outlet, an alkaline solution outlet and a saltwater inlet; and a water electrolyser downstream of the acid-base flow battery for producing hydrogen, comprising a negative electrode and a positive electrode.

UTILIZING THE OXYGEN FROM WATER ELECTROLYSIS IN A PARTIAL OXIDATION PROCESS (POX)

Publication No.:  WO2026013106A1 15/01/2026
Applicant: 
BASF SE [DE]
BASF SE
WO_2026013106_A1

Absstract of: WO2026013106A1

A process for producing a synthesis gas mixture comprising hydrogen and carbon monoxide and optionally carbon dioxide by partial oxidation of hydrocarbons or a mixture comprising hydrocarbons comprising: Reacting the hydrocarbons or the mixture comprising hydrocarbons with an oxygen-comprising reactant gas, wherein the oxygen in said oxygen-comprising reactant gas comprises at least 1 ppmv of H2 based on the total volume of the oxygen-comprising reactant gas; a synthesis gas mixture obtainable or obtained by the inventive process; a synthesis gas mixture comprising hydrogen and carbon monoxide and optionally carbon dioxide, wherein the synthesis gas has a δ18O value of < 22 ‰, referred to the international standard VSMOW; and use of an oxygen-comprising reactant gas comprising at least 1 ppmv of H2 based on the total volume of the oxygen-comprising reactant gas for the preparation of a synthesis gas mixture comprising hydrogen and carbon monoxide and optionally carbon dioxide by partial oxidation of hydrocarbons or a mixture comprising hydrocarbons. The present invention further relates to a partial oxidation reactor (POX reactor) comprising a connection for supplying an oxygen-comprising reactant gas comprising at least 1 ppmv of H2 based on the total volume of the oxygen-comprising reactant gas; and a system comprising a partial oxidation reactor (POX reactor) and a water electrolyzer connected by a gas pipe.

SYSTEM AND METHOD FOR PRODUCING PRESSURIZED HYDROGEN FROM A SOLID OXIDE ELECTROLYSER CONNECTED TO AN ELECTROCHEMICAL HYDROGEN COMPRESSOR

Publication No.:  WO2026013331A1 15/01/2026
Applicant: 
TEKNOLOGIAN TUTKIMUSKESKUS VTT OY [FI]
TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
WO_2026013331_PA

Absstract of: WO2026013331A1

The invention relates to a system and method for producing pressurized hydrogen from a solid oxide electrolyser connected to an electrochemical hydrogen compressor The system comprises a solid oxide electrolyser (SOEC) (1), which is configured to generate hydrogen; an electrochemical hydrogen compressor (EHC) (2), which is configured to pressurize said hydrogen generated by said SOEC; and a first recovery circuit, which is configured to recover water exiting the cathode (2c) of the EHC (2) by providing a return path through the EHC (2) to the cathode (1C) of the SOEC (1) for consumption. An optional second recovery circuit is configured to recover heat from at least one output flow (4, 5) of the SOEC (1) to a heat exchanger (15), which is configured to heat said return path (4, 18) at the cathode (1C) of said solid oxide electrolyser (1).

MEDIATED HYDROGEN ANODE FOR USE IN REDUCTIVE ELECTROSYNTHESIS

Publication No.:  US20260015743A1 15/01/2026
Applicant: 
WISCONSIN ALUMNI RES FOUNDATION [US]
Wisconsin Alumni Research Foundation
US_20260015743_PA

Absstract of: US20260015743A1

An electrosynthetic cell and its use are disclosed. The electrosynthetic cell can be used in a reductive electrosynthesis of one or more desired chemical products from one or more chemical reactants. The electrosynthetic cell comprises a hydrogen anode half-cell and a cathode half-cell. The hydrogen anode half-cell comprises hydrogen (H2), a first liquid phase solution that is in contact with an anode and a heterogeneous redox catalyst capable of catalyzing the oxidation of H2 to H+, and a redox mediator capable of transferring or accepting electrons and/or protons while undergoing reduction or oxidation. The cathode half-cell comprises a second liquid phase solution comprising the one or more chemical reactants that is in contact with a cathode and a reductive synthesis catalyst capable of catalyzing the reductive synthesis of the one or more desired chemical products from the one or more chemical reactants.

SOLID STATE DELIVERY SYSTEM

Publication No.:  US20260015230A1 15/01/2026
Applicant: 
GE AVIATION SYSTEMS LTD [GB]
GE Aviation Systems Limited
US_20260015230_PA

Absstract of: US20260015230A1

A solid state storage system includes a pressure-sealed storage unit defining an interior and having an outlet, an upper manifold and a lower manifold separated by a dividing plane having a set of ports, a set of chambers, and a solid state storage, wherein at least some gas is supplied to the outlet.

GAS PRODUCTION DEVICE AND METHOD

Publication No.:  US20260015229A1 15/01/2026
Applicant: 
ARIEL SCIENT INNOVATIONS LTD [IL]
ARIEL SCIENTIFIC INNOVATIONS LTD
US_20260015229_PA

Absstract of: US20260015229A1

A system including a gas production device including (a) a solid containing compartment configured to contain a solid, (b) at least one fluid channel with an inlet and an outlet comprising an opening along at least a portion of its length, the opening facing the solid, (c) a solution compartment configured to contain a solution, the solution compartment: (1) being in fluid communication with the fluid channel inlet and outlet, (2) located along a fluid pathway in between the fluid channel outlet and inlet, and (3) at least one hydrogen gas outlet, (d) a fluid flow driver in fluid communication with the fluid pathway, and (e) a fluid flow rate regulator connected to the fluid flow driver. Disclosed is also a method for producing a gas (e.g., hydrogen).

SOLID OXIDE ELECTROLYTIC CELLS USING ZEOLITE-TEMPLATED CARBON (ZTC) AS ELECTROCATALYST

Publication No.:  US20260015741A1 15/01/2026
Applicant: 
SAUDI ARABIAN OIL COMPANY [SA]
Saudi Arabian Oil Company
US_20260015741_PA

Absstract of: US20260015741A1

Solid oxide electrolytic cell assembly (SOEC) and methods for making SOECs are provided. An exemplary method includes forming a functionalized zeolite templated carbon (ZTC). The functionalized ZTC is formed by forming a CaX zeolite, depositing carbon in the CaX zeolite using a chemical vapor deposition (CVD) process to form a carbon/zeolite composite, treating the carbon/zeolite composite with a solution including hydrofluoric acid to form a ZTC, and treating the ZTC to add catalyst sites. In the method, the functionalized ZTC is incorporated into electrodes by forming a mixture of the functionalized ZTC with a calcined solid oxide electrolyte, and calcining the mixture. The method includes forming an electrode assembly, forming the SO electrolytic cell assembly, and coupling the SO electrolytic cell assembly to a heat source.

SYSTEMS AND METHODS FOR HARNESSING THERMAL GRADIENT ENERGY

Publication No.:  US20260018642A1 15/01/2026
Applicant: 
NANA RAHUL S [US]
FERIA RAFAEL A [US]
Nana Rahul S,
Feria Rafael A
US_20260018642_PA

Absstract of: US20260018642A1

A method and system of generating electrical power or hydrogen from thermal energy is disclosed. The method includes adding heat to (or removing heat from) a salinity gradient generator configured to generate a more concentrated and a less concentrated saline solution. The method further includes drawing the more concentrated saline solution and the less concentrated saline solution from the salinity gradient generator and feeding the more concentrated saline solution and the less concentrated saline solution into a power generator. Feeding the saline solutions into the power generator causes the power generator to receive the saline solutions and generate power by performing a controlled mixing of the more concentrated saline solution and the less concentrated saline solution. The method further includes drawing, from the power generator, a combined saline solution comprising the mixed saline solutions and feeding the combined saline solution to the salinity gradient generator.

APPARATUS FOR GENERATING ELECTRICITY

Publication No.:  US20260018632A1 15/01/2026
Applicant: 
EMISSION FREE GENERATORS INC [US]
EMISSION FREE GENERATORS, INC
US_20260018632_PA

Absstract of: US20260018632A1

A power generation system includes a housing, a lid defining an opening in the housing, and a chamber inside the housing configured to receive a cartridge comprising a powdered fuel mixture. The system also includes a fluid reservoir that stores a fluid configured to react with the powdered fuel mixture to produce hydrogen gas. A processor is configured to control ingress of the fluid from the fluid reservoir to the powdered fuel mixture in the cartridge and control egress of the gas from the cartridge to the gas storage compartment. The system also includes a generator configured to generate electricity from the gas in the gas storage compartment.

CATALYTIC POM PARTICLES

Publication No.:  US20260015744A1 15/01/2026
Applicant: 
KESSLER VADIM [SE]
SEISENBAEVA GULAIM [SE]
KESSLER Vadim,
SEISENBAEVA Gulaim
US_20260015744_PA

Absstract of: US20260015744A1

POM particles are suitable as photocatalytic or electrocatalytic catalyst in the production of hydrogen and a method of producing such POM particles. The POM particles are produced by subjecting a heteropoly acid with the chemical formula HzXY12O40, or a hydrate thereof, to acidic conditions in the presence of a polyvalent cation, wherein z=3 or 4, X is selected from the group consisting of P, Si, Ge, As, Sb and V, and Y is selected from the group consisting of W, Mo and V.

ELECTRODE FOR ELECTROLYSIS, LAMINATE, WOUND BODY, ELECTROLYZER, METHOD FOR PRODUCING ELECTROLYZER, METHOD FOR RENEWING ELECTRODE, METHOD FOR RENEWING LAMINATE, AND METHOD FOR PRODUCING WOUND BODY

Publication No.:  US20260015745A1 15/01/2026
Applicant: 
ASAHI KASEI KK [JP]
ASAHI KASEI KABUSHIKI KAISHA
US_20260015745_PA

Absstract of: US20260015745A1

The present invention relates to an electrode for electrolysis, a laminate, a wound body, an electrolyzer, a method for producing an electrolyzer, a method for renewing an electrode, a method for renewing a laminate, and a method for producing a wound body. An electrode for electrolysis according to one aspect of the present invention has a mass per unit area of 48 mg/cm2 or less and a force applied per unit mass-unit area of 0.08 N/mg·cm2 or more.

ELECTROLYSIS SYSTEM

Publication No.:  US20260015742A1 15/01/2026
Applicant: 
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG
US_20260015742_PA

Absstract of: US20260015742A1

The invention relates to an electrolysis system including an electrolysis plant and a power supply source with a direct voltage output and including a central supply line, wherein the central supply line is connected to the direct voltage output of the power supply source such that a direct current can be fed to the central supply line, where a central DC high-performance strand designed for the direct voltage is provided, to which high-performance strand the electrolysis plant is connected via the central supply line, wherein at least the power supply source and the DC high-performance strand are designed as a network insulated from ground. The invention also relates to the use of an insulated DC network in an electrolysis system.

SYSTEMS AND METHODS FOR PRODUCING RENEWABLE HYDROGEN

Publication No.:  AU2024303520A1 15/01/2026
Applicant: 
KOLOMA INC
KOLOMA, INC
AU_2024303520_PA

Absstract of: AU2024303520A1

Methods for producing renewable hydrogen and systems related to the same are provided.

METHOD FOR PRODUCING A COMPOUND AND APPARATUS FOR PRODUCING A COMPOUND

Publication No.:  EP4677141A1 14/01/2026
Applicant: 
HELANDER HOLDING OY [FI]
Helander Holding Oy
CN_121079452_PA

Absstract of: WO2024184587A1

The invention relates to a method for producing a compound comprising at least one of hydrogen or oxygen. The method comprises providing water and a first substance, producing a mixture comprising the water and bubbles comprising the first substance, decreasing diameter of bubbles comprising the first substance, decomposing a part of the water, and composing a compound at least from the decomposed water and the first substance, and the compound comprising at least one of hydrogen or oxygen. The invention further relates to apparatus for producing a compound comprising at least one of hydrogen or oxygen.

METHOD FOR PRODUCING HYDROGEN AND APPARATUS FOR PRODUCING HYDROGEN

Publication No.:  EP4677140A1 14/01/2026
Applicant: 
HELANDER HOLDING OY [FI]
Helander Holding Oy
CN_121039322_PA

Absstract of: WO2024184586A1

The invention relates to a method for producing hydrogen. The method comprises providing water and a gaseous substance, the gaseous substance comprises hydrogen atoms and carbon atoms, producing a mixture comprising the water and bubbles comprising the gaseous substance, decreasing diameter of the bubbles comprising the gaseous substance, and producing gaseous hydrogen by decomposing the gaseous substance in the bubbles having the decreased diameter. The invention further relates to apparatus for producing hydrogen gas.

Catalyst-coated polymer electrolyte membranes and methods for their manufacture

Publication No.:  GB2642535A 14/01/2026
Applicant: 
JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD [GB]
Johnson Matthey Hydrogen Technologies Limited
GB_2642535_PA

Absstract of: GB2642535A

A method for the manufacture of catalyst-coated polymer electrolyte membranes (CCMs) for water electrolysis is described. The CCMs may comprise a proton exchange membrane (PEM) or an anion exchange membrane (AEM) with an anode layer and/or a cathode catalyst layer applied to a face of the membrane. The method comprises the steps of forming a polymer electrolyte membrane on a first catalyst layer 2 comprising a platinum-containing catalyst on a carbon support material 1 and a catalyst layer ion-conducting polymer. The catalytic layer 2 may comprise a hydrogen evolution catalyst (HER) and/or an oxygen evolution catalyst (OER). The first catalyst layer 2 has an expected effective platinum surface area in the range of and including 5-200 cm2Pt/cm2 and a carbon content in the range of and including 30-60 wt%.

System and process for improving the electrolysis of saltwater

Publication No.:  GB2642534A 14/01/2026
Applicant: 
THE UNIV COURT OF THE UNIV OF ABERDEEN [GB]
The University Court of the University of Aberdeen
GB_2642534_PA

Absstract of: GB2642534A

A system and process for facilitating the direct electrolysis of saltwater, such as seawater, is described. The system comprises an acid-base flow battery (ABFB) 230 with an acid solution outlet 403, an alkaline solution outlet 402 and a saltwater inlet 401; and a water electrolyser 340 downstream of the ABFB for producing hydrogen 408, the electrolyser comprising a negative electrode and a positive electrode. The ABFB is in fluid communication with the water electrolyser, such that, in use, an alkaline solution from the alkaline solution outlet of the acid-base flow battery passes into a positive electrode channel of the water electrolyser proximal the positive electrode. By coupling a water electrolyser with an upstream acid-base flow battery in this way, the base solution by-product from the ABFB is fed into the positive (anode) channel of the electrolyser. In this way, the pH proximal the positive electrode is increased. As a result, saltwater is subjected to electrolysis without the evolution of chlorine or bromine at the positive electrode. The brine by-product of the process may be subjected to freshwater-saltwater reverse electrodialysis (RED) to convert dilution energy to usable electricity.

ELECTROCHEMICAL CELL STACK

Publication No.:  EP4677142A1 14/01/2026
Applicant: 
SCHAEFFLER TECHNOLOGIES AG [DE]
Schaeffler Technologies AG & Co. KG
KR_20250154491_PA

Absstract of: CN120659909A

An electrochemical cell stack (1) comprising a plurality of cells (2) separated from one another by bipolar plates (5, 5 '), where each cell (2) is formed by two half-cells (3, 4) between which a membrane (6) surrounded by a support frame (7) is arranged, and where a porous transport layer (10, 11) is present in each half-cell (3, 4). The support frame (7) describes a step shape having two adjacent cross-sectional areas (12, 13), in which the edge (18) of the membrane (6) lies in a step (17) formed by the cross-sectional areas (12, 13) and the porous transport layer (10) of the half-cell (3) extends into the step (17), and in which the porous transport layer (10) of the half-cell (3) extends into the step (17). According to the invention, the support frame (7) comprises at least one sealing arrangement (15) injection molded onto the support frame (7) and comprising an electrically insulating sealing material, according to the invention, the sealing arrangement (15) comprises three sealing regions (19, 20, 21), each having at least one sealing lip (22, 22 '), in particular a first sealing region (19) and a second sealing region (20) and a third sealing region (21), which are assigned to narrower regions of the two cross-sectional regions (12, 13) facing the membrane (6), the first sealing region and the second sealing region each contact exactly one bipolar plate (5, 5 '), and the third sealing region is located on a side of the support frame (7) facing away from the step (17)

THERMOCHEMICAL REACTIONS USING GEOTHERMAL ENERGY

Publication No.:  EP4676875A1 14/01/2026
Applicant: 
ENHANCEDGEO HOLDINGS LLC [US]
EnhancedGEO Holdings, LLC
TW_202436207_A

Absstract of: TW202436207A

A first aspect is directed to a method for producing hydrogen by thermochemical splitting of water includes injecting one or more feed streams of water into a reaction chamber. The method further includes using heat from a subterranean heat source to carry out the thermochemical splitting of water to form hydrogen and oxygen in the reaction chamber. The formed products are subsequently removed from the reaction chamber. A second aspect is directed to a reaction system includes a wellbore extending from a surface into a subterranean heat source. The reaction system further includes a reaction chamber configured to be maintained at a reaction temperature using heat from the subterranean heat source. The reaction system further includes one or more inlet conduits. The inlet conduits are configured to provide one or more feed streams to the reaction chamber. The reaction system also includes outlet conduits configured to allow flow of one or more product streams.

System and method for producing pressurized hydrogen from a solid oxide electrolyser connected to an electrochemical hydrogen compressor

Publication No.:  FI20245884A1 13/01/2026
Applicant: 
TEKNOLOGIAN TUTKIMUSKESKUS VTT OY [FI]
Teknologian tutkimuskeskus VTT Oy
FI_20245884_PA

Absstract of: FI20245884A1

The invention relates to a system and method for producing pressurized hydrogen from a solid oxide electrolyser connected to an electrochemical hydrogen compressor. The system comprises a solid oxide electrolyser (SOEC) (1), which is configured to generate hydrogen; an electrochemical hydrogen compressor (EHC) (2), which is configured to pressurize said hydrogen generated by said SOEC; and a first recovery circuit, which is configured to recover water exiting the cathode (2c) of the EHC (2) by providing a return path through the EHC (2) to the cathode (1C) of the SOEC (1) for consumption. An optional second recovery circuit is configured to recover heat from at least one output flow (4, 5) of the SOEC (1) to a heat exchanger (15), which is configured to heat said return path (4,18) at the cathode (1C) of said solid oxide electrolyser (1).

过氧化氢发生装置及其应用

Publication No.:  CN121320993A 13/01/2026
Applicant: 
无锡美芝电器有限公司
CN_121320993_PA

Absstract of: CN119491243A

The invention relates to the technical field of household appliances, and provides a hydrogen peroxide generating device and application thereof. The hydrogen peroxide generating device comprises a shell, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are formed in the shell, the liquid inlet is used for being connected with a water supply component, a cathode piece and an anode piece which are used for electrolyzing water to generate a hydrogen peroxide solution are arranged in the shell, and the liquid outlet is used for discharging the generated hydrogen peroxide solution. According to the hydrogen peroxide generating device provided by the invention, water entering the shell through the liquid inlet can be electrolyzed to generate the hydrogen peroxide solution, and the generated hydrogen peroxide solution is discharged through the liquid outlet; the hydrogen peroxide generating device can be applied to household appliances such as clothes washing equipment, clothes processing equipment, an air conditioner, a dehumidifier, a refrigerator and a dish washing machine, can play a good role in cleaning, odor removal, disinfection, sterilization and the like, reduces the use of detergent, and improves the use experience of a user.

一种用于降低碱性制氢装置启动时间的极板及其组装工艺

Publication No.:  CN121321084A 13/01/2026
Applicant: 
新乡海卓能源科技有限公司
CN_121321084_PA

Absstract of: CN116377465A

The invention is applicable to the related technical field of hydrogen production, and provides a polar plate for reducing the starting time of an alkaline hydrogen production device and an assembly process thereof.The main polar plate comprises a metal ring, two partition plates which are symmetrically arranged are fixedly connected to the inner wall of the metal ring, holes are evenly distributed in the metal ring, a cavity is formed between the holes and the two partition plates, the partition plates are 0.6 mm steel plates, and the metal ring is made of stainless steel. The distance between the two partition plates is 0.8 mm. A cavity is formed in the metal ring under the action of the partition plates, when the alkaline hydrogen production device is started, water at the constant temperature of 85 DEG C is injected into a new drainage basin 2 hours ahead of time by a technician, circulation is conducted to heat the electrolytic bath till the electrolytic bath is heated to 65 DEG C, at the moment, the alkaline hydrogen production device is started, circulation of the water at the constant temperature of 85 DEG C is stopped, and therefore the alkaline hydrogen production device is started. And the temperature of the alkaline hydrogen production electrolytic cell is increased from 65 DEG C to 85 DEG C. The time is 2 hours; the starting time of the alkaline hydrogen production device is shortened to 2 hours, and the energy consumption of the alkaline hydrogen production devi

用于碱性水电解的隔板

Publication No.:  CN121336005A 13/01/2026
Applicant: 
爱克发-格法特公司
CN_121336005_PA

Absstract of: AU2024407460A1

A catalyst coated separator for alkaline water electrolysis (1) comprising a porous support (100) and on at least side of the support, in order: - an optional porous polymer layer (200), - a non-porous alkali-stable polymer layer (300), and - a catalyst layer (400).

用于产生氢气和/或氧气的方法和系统

Publication No.:  CN121311629A 09/01/2026
Applicant: 
林德有限责任公司
CN_121311629_PA

Absstract of: AU2024305642A1

The invention relates to a method (100) for producing hydrogen and/or oxygen by means of electrolysis, in which an electrolysis unit (10) is supplied with a direct current (2) which is provided from an alternating current (1) using a rectifier (20), wherein the electrolysis unit (10) is supplied with water using a water circuit (110). The rectifier (20) is cooled using a cooling water which is provided using a sub-flow (5) of water being conducted in the water circuit (110) and/or water supplied to the water circuit. The invention likewise relates to a corresponding system.

METHOD OF PRODUCING GREEN STEEL

Nº publicación: WO2026008847A1 08/01/2026

Applicant:

H2 SPHERE GMBH [DE]
H2-SPHERE GMBH

EP_4674988_PA

Absstract of: WO2026008847A1

The present invention relates to a method of producing green steel by reduction of iron oxides using hydrogen. The inventive method makes use of mining waste as starting material for H2 generation by SDE process or a sulfur-iodine-process. Side products can be utilized in the steelmaking process. This is achieved by a method according to the present invention comprising the following steps: a) a part or all of the iron oxide used as raw material for steelmaking is reduced by hydrogen, b) a part or all hydrogen required for the reduction of iron oxide is generated via a SO2-depolarized electrolyzer (SDE) process or a sulfur-iodine-process, and c) a part or all of the diluted sulfuric acid obtained from step b) is used for at least one of i. steel pickling, ii. reaction with steel mill dust for generation of iron sulfate (FeSO4 or Fe2(SO4)3), and iii. increasing the concentration of said diluted sulfuric acid by vacuum evaporation of water using off-heat from steelmaking or pyrite roasting.

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