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218
results.
Updated on
23/12/2025 [06:52:00]
Results 100 to 125 of 218
Absstract of: US2025369137A1
Oxygen generation systems for use in low-gravity environments include a cell stack with an anode-side phase separator and a cathode-side phase separator fluidly coupled to outlets of the cell stack. An anode-side flow controller and a cathode-side flow controller are arranged downstream from the respective phase separators. A pressure differential is induced upstream of the anode-side flow controller that is greater in pressure than a downstream side thereof. A pressure differential is induced upstream of the cathode-side flow controller that is greater in pressure than a downstream side thereof. An input flow controller is arranged upstream from the stack inlet, the input flow controller configured to cause a pressure differential such that an upstream side of the input flow controller is greater than a downstream side of the input flow controller.
Absstract of: US2025369126A1
Embodiments for an apparatus for producing hydrogen peroxide are provided. The apparatus includes a heat exchanger configured to remove heat from deionized water prior to passing the deionized water through the anode passage of one or more cells. The apparatus is also configured to oxidize the deionized water in the anode passage of the one or more cells. The apparatus also includes a controller configured to control the heat exchanger and a first one or more temperature sensors electrically coupled to the controller. The first one or more temperature sensors are configured to provide a first temperature reading based on a temperature of the one or more cells, wherein the controller is configured to control the heat exchanger to maintain the first temperature reading at or below a first temperature threshold.
Absstract of: US2025369139A1
Oxygen generation systems for use in low-gravity environments include a cell stack having an anode and a cathode. An anode-side phase separator and a cathode-side phase separator are each fluidly coupled to outlets of the cell stack. The anode-side phase separator separates a mixture into liquid water and gaseous oxygen and the cathode-side phase separates a mixture int liquid water and gaseous hydrogen. A ducting system is configured to house the cell stack and the cathode-side phase separator, a hydrogen sensor is arranged at an outlet of the ducting system, and a controller is configured to stop oxygen generation at the cell stack when a concentration of hydrogen is detected at or above a threshold level at the hydrogen sensor at the outlet of the ducting system.
Absstract of: US2025369125A1
Methods and systems are disclosed for using industrial waste for the production of hydrogen gas. The method includes examining a pH level of the industrial waste, removing contaminate from the industrial waste, conditioning and concentrating the industrial waste to a proton-rich solution, and using the resulting proton-rich solution as the proton source in a hydrogenase catalyzed hydrogen production system.
Absstract of: US2025369134A1
A liquid-assisted chemical vapor deposition method for preparing hierarchical Ni/NiO@Ru—NC nanotube arrays includes forming Ni/NiO@Ru—NC on surfaces of the NF with single-atom Ru anchored on N-doped carbon (Ru—NC) nanotube and Janus Ni/NiO NPs encapsulated on the tips. The forming Ni/NiO@Ru—NC includes pretreating the NF; creating a CH3CN/RuCl3/Ar atmosphere in the tube furnace to in-situ grow the Ni/NiO@Ru—NC nanotube arrays on the pretreated NF. The bifunctional Ni/NiO@Ru—NC electrocatalyst exhibits overpotentials of 88 m V and 261 m V for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) at 100 mA cm−2 in alkaline solution, respectively. Meanwhile, the bifunctional Ni/NiO@Ru—NC can stably operate an anion-exchange membrane water electrolysis (AEMWE) system for 50 hours under 500 mA cm−2 at a voltage of 1.95±0.05 V in a 1.0 M KOH solution at room temperature. An overall water-splitting electrolyzer can be efficiently driven by a solar cell.
Absstract of: US2025368585A1
A carbon closed-loop system and process are provided. The carbon closed-loop system and process can be utilized in an industrial operation for producing, for example, a Lower Carbon Aviation Fuel (LCAF). The LCAF is produced by decarbonizing, for example, industrial furnaces and boilers, such as fired heaters, through the carbon closed-loop system and process which integrates renewable energy-driven H2 generation, CO2 capture, and methanation technologies to substantially reduce the carbon footprint of the industrial operation.
Absstract of: US2025368503A1
The disclosure relates to systems and methods for continuous hydrogen production using photocatalysis. Specifically, the disclosure relates to systems and methods for continuous hydrogen production using photocatalysis of water utilizing semiconductor charge carriers immobilized on removable carriers in the presence of a reducing agent such as tertiary amines.
Absstract of: WO2025250529A1
Systems and methods for generating hydrogen by electrolysis of water using electricity produced using a vortex generator that results in cavitation and implosion processes in a vortex. The vortex generator can produce conditions within the vortex generator that can allow deuterium molecules naturally occurring in water to acquire sufficient kinetic energy to overcome the Coulomb barrier so that their nuclei can get close enough to each other to undergo various nuclear reactions, discharging a large amount of nuclear energy at the microstate, imparting energy to the water, which can be used to drive a turbine to generate electricity, and the resulting electricity can be used at least in part for the electrolysis of water.
Absstract of: WO2025248075A1
Embodiments for an apparatus for producing hydrogen peroxide are provided. The apparatus includes a heat exchanger configured to remove heat from deionized water prior to passing the deionized water through the anode passage of one or more cells. The apparatus is also configured to oxidize the deionized water in the anode passage of the one or more cells. The apparatus also includes a controller configured to control the heat exchanger and a first one or more temperature sensors electrically coupled to the controller. The first one or more temperature sensors are configured to provide a first temperature reading based on a temperature of the one or more cells, wherein the controller is configured to control the heat exchanger to maintain the first temperature reading at or below a first temperature threshold.
Absstract of: WO2025248230A1
A membrane-electrode assembly for a water electrolyser is provided. The membrane-electrode assembly comprises a polymer electrolyte membrane with a first major surface and a second major surface, and an anode component in contact with the first major surface of the polymer electrolyte membrane. The anode component comprises (i) a porous framework of polymer fibres at least partially coated with a metal-containing thin film; and (ii) an oxygen evolution reaction (OER) catalyst supported on the porous framework of polymer fibres.
Absstract of: WO2025250426A1
Olefinic products may be produced from various sources. For example, methods of production of olefinic products from carbon dioxide may include: performing an electrolysis reaction of water to form hydrogen and oxygen; providing at least a portion of the hydrogen and carbon dioxide to a methanation unit; reacting the hydrogen and the carbon dioxide via a methanation reaction in the methanation unit to produce methane and water; providing at least a portion of the methane and at least a portion of the oxygen to an oxidative coupling unit; and reacting the methane and the oxygen via an oxidative coupling reaction in the oxidative coupling unit to produce an olefinic product, water, and optionally, additional carbon dioxide.
Absstract of: WO2025247962A1
The present invention relates to a water-efficient method of storing hydrogen using a bicarbonate/formate-based aqueous reaction system, wherein the method comprises: (A) reducing aqueous bicarbonate using hydrogen to form formate and water, (B) at least partially separating water from the aqueous reaction system to provide water and concentrated salt components comprising formate, and (C) using the water provided in step (B) to form hydrogen for use in step (A) and/or to dissolve concentrated salt components comprising bicarbonate to provide aqueous bicarbonate for use in step (A).
Absstract of: WO2025249719A1
The present invention relates to an electrode for a hydrogen evolution reaction of an alkaline water electrolysis cell, the electrode being characterized by comprising: a cocatalyst which is a composite comprising a Lewis acid-containing material and a metal-organic framework (MOF); and a catalyst surrounded by the cocatalyst. Therefore, according to the present invention, a water dissociation step of an alkaline hydrogen evolution reaction is promoted, hydrogen gas generated by the hydrogen evolution reaction is easily permeated, and Nafion is evenly dispersed by large pores generated by the MOF, thereby minimizing catalyst poisoning while implementing the effect of the cocatalyst on the entire surface.
Absstract of: WO2025249472A1
An electrolysis cell 21 comprises a solid electrolyte layer 211, a fuel electrode layer 213 stacked and arranged on one surface side of the solid electrolyte layer 211, and an air electrode layer 212 stacked and arranged on the other surface side of the solid electrolyte layer 211. The fuel electrode layer 213 includes a functional layer 213a, a support layer 213b positioned on the side farther from the solid electrolyte layer 211 than from the functional layer 213a, and a mutual diffusion layer 213c positioned between the functional layer 213a and the support layer 213b so as to be in contact with both of the functional layer 213a and the support layer 213b. The mutual diffusion layer 213c includes: a first element which is one element constituting the functional layer 213a; and a second element which is one element constituting the support layer 213b and is different from the first element. The thickness of the mutual diffusion layer 213c is 1.1 μm or more and 9.7 μm or less.
Absstract of: EP4656774A2
Provided is a water electrolysis stack capable of improving durability. The water electrolysis stack includes a cell stack that is formed by stacking a plurality of water electrolysis cells, an inter-cell space is formed between each adjacent ones of the water electrolysis cells in the cell stack, and gas flows into the inter-cell spaces in water electrolysis.
Absstract of: AU2024213038A1
An electrolyser system and method of electrode manufacture. The electrolyser system may comprise a first vessel in communication with an electrolyser stack, a power supply, an electrode, a separator, a membrane, and a second vessel in communication with the electrolyser stack. The electrode may comprise a catalytic material and a micro- porous and/or nano-porous structure. The method of electrode manufacture may comprise providing a substrate, contacting the substrate with an acidic solution, applying an electric current to the substrate, simultaneously depositing a main material and supporting material comprising a scarifying material onto the substrate, and leaching the scarifying material.
Absstract of: EP4656592A1
Die Erfindung betrifft ein Verfahren sowie eine Anlage (100) zur Herstellung eines Wasserstoff enthaltenden Produkts, wobei Ammoniak (1) unter Erhalt eines Ammoniakeinsatzes (2) einer Vorbehandlung (10) unterworfen und der Ammoniakeinsatz (2) in einem beheizten Ammoniakcracker (20) zu einem Ammoniak sowie Wasserstoff und Stickstoff enthaltenden Spaltgas (3) umgesetzt wird, wobei zur Beheizung des Ammoniakcrackers (20) ein schwefelfreies Brenngas unter Bildung eines wasserhaltigen Rauchgases (4a) verfeuert wird. Kennzeichnend hierbei ist, dass zumindest ein Teil des wasserhaltigen Rauchgases in der Vorbehandlung (10) gegen Ammoniak bis unter den Taupunkt abgekühlt wird, wobei kondensiertes Wasser sowie angewärmtes Ammoniak erhalten werden.
Absstract of: EP4656771A1
A floating hydrogen production plant (2) comprises a plurality of interconnected floating platforms (6) which are movable with respect to each other. Each floating platform (6) comprises a floating member (7). The floating member (7) of at least one floating platform (6) has an internal chamber (8) for storing hydrogen. Each of the floating platforms (6) is provided with a plurality of hydrogen production devices (3) for producing hydrogen by electrolysis of water in the ambient air through solar energy. The hydrogen production devices (3) have respective hydrogen ports which are fluidly connectable to the internal chamber (8) of the floating member (7) of the at least one floating platform (6).
Absstract of: EP4656506A1
A floating power plant (2) comprises a plurality of interconnected floating platforms (6) which are movable with respect to each other. Each floating platform (6) comprises a floating member (8), wherein the floating member (8) of at least one floating platform (6) has an internal chamber (9) for storing hydrogen. The floating power plant (2) is provided with an electrolyzer including a hydrogen output and a fuel cell including a hydrogen input. The largest number of the floating platforms (6) is provided with PV panels (3) and at least one of the floating platforms (6) is provided with the electrolyzer and/or the fuel cell. The electrolyzer is electrically connectable to the PV panels (3) and the hydrogen output and/or the hydrogen input is fluidly connectable to the internal chamber (9) of the floating member (8) of the at least one platform (6).
Absstract of: WO2024114488A1
The present invention belongs to the field of water electrolysis for hydrogen production. Disclosed are a PEM water electrolysis bipolar plate and a manufacturing method. The present invention uses a stainless steel plate as a substrate. The substrate is provided with through hole structures which have the same structure as flow channel ridges and positions of which match positions of the flow channel ridges. The upper surface and the lower surface of the substrate are both provided with a titanium layer, and the titanium layers fill the through hole structures so as to enable the upper titanium layer and the lower titanium layer to be connected. A spherical dehydrogenated titanium powder layer and a functional coating are successively provided on the surface of each of the titanium layers. The functional coatings form the flow channel ridges, flow disturbing pillars and a hydrogen-oxygen frame of the bipolar plate. The pore diameter of the spherical dehydrogenated titanium powder layers is 100 nm to 10 μm; and the titanium layers, the spherical dehydrogenated titanium powder layers and the functional coatings all contain titanium powders. The present invention can improve the conductivity of the bipolar plate while using a low-cost stainless steel plate, thus improving the overall properties of the water electrolysis bipolar plate.
Absstract of: EP4656590A1
The present invention relates to a water-efficient method of storing hydrogen using a bicarbonate/formate-based aqueous reaction system, wherein the method comprises:(A) reducing aqueous bicarbonate using hydrogen to form formate and water,(B) at least partially separating water from the aqueous reaction system to provide water and concentrated salt components comprising formate, and(C) using the water provided in step (B) to form hydrogen for use in step (A) and/or to dissolve concentrated salt components comprising bicarbonate to provide aqueous bicarbonate for use in step (A).
Absstract of: EP4657576A1
Problem To provide a catalyst-loaded carbon having a high initial activity and excellent durability. Solution A catalyst-loaded carbon including catalyst particles and a carbon support, the catalyst particles being loaded on the carbon support. The carbon support has a crystallite size of 3.5 nm or greater and 9 nm or less, a BET specific surface area of 300 m<sup>2</sup>/g or greater and 450 m<sup>2</sup>/g or less, and a pore size of 5.0 nm or greater and 20.0 nm or less. The catalyst particles are made of platinum or a platinum alloy, have a crystallite size of 2.5 nm or greater and 5.0 nm or less and a surface area of 40 m<sup>2</sup>/g or greater and 80 m<sup>2</sup>/g or less.
Absstract of: EP4656772A1
The present disclosure provides a water electrolysis membrane electrode, a method for preparing the water electrolysis membrane electrode, and a water electrolyzer applying the water electrolysis membrane electrode. The water electrolysis membrane electrode includes a cathode gas diffusion layer, a cathode catalytic layer, an anion exchange membrane, a hydrophobic anode catalytic layer, and an anode gas diffusion layer that are stacked in sequence. Raw materials for preparing the hydrophobic anode catalytic layer include an anode catalyst, a hydrophobic material, and an anode ionomer. A mass ratio of the anode catalyst, the hydrophobic material, and the anode ionomer is 10:1-3:1-3. A porosity of the hydrophobic anode catalytic layer is 10%-40%.
Absstract of: CN120344485A
The present invention relates to the field of hydrogen production from catalytic cracking of ammonia. The present invention comprises a primary cracking path comprising one or more catalyst-containing reaction tubes disposed within a roasting-type ammonia cracking reactor; and a parallel cleavage path comprising one or more secondary ammonia cleavage reactors arranged in succession and fluidly connected to each other. The invention can be used for producing hydrogen from ammonia.
Nº publicación: EP4655430A1 03/12/2025
Applicant:
CERES IP CO LTD [GB]
Ceres Intellectual Property Company Limited
Absstract of: CN120569516A
The invention provides an electrolytic cell system (10). The electrolytic cell system comprises a heat storage unit (14) and an electrolytic cell (16). The heat storage unit (14) comprises at least one heat source feed inlet. The electrolytic cell (16) comprises at least one electrolytic cell cell (20), a steam inlet and at least one exhaust gas outlet. The exhaust outlet is connected to the heat source feed inlet to heat the heat storage unit (14). The heat storage unit (14) is configured to use its stored heat to generate steam for one of feeding into the steam inlet at a time and generating electricity or both feeding into the steam inlet at the same time and generating electricity. The invention also provides a system comprising an intermittent or variable power source (12) and an electrolytic cell system (10) as defined above. The intermittent or variable power source (12) may be configured to simultaneously or separately power the electrolysis cell (16) and heat the heat storage unit (14) via a heating element.
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