Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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).
Resumen de: 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.
Resumen de: 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.
Resumen de: 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%.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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).
Resumen de: 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.
Resumen de: 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).
Resumen de: 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).
Resumen de: 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.
Resumen de: 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.
Resumen de: AU2024222987A1
A system, comprising: an electrolyzer having a plurality of electrolysis cells arranged in a cell stack, wherein the electrolysis cells are electrically connected in series and grouped into two or more cell groups, each cell group having an electrical contact at either end; an electrical circuit having one or more switches, each switch coupled between the electrical contacts of a respective one of the cell groups and configured to selectively disconnect the cell group from the cell stack by electrically bypassing the cell group via a lower resistance path, to thereby vary the number of active electrolysis cells in the cell stack; and a controller configured to determine the number of active electrolysis cells based on a variable amount of direct current (DC) electrical energy supplied to the cell stack by an electrical energy source, and to control the one or more switches based on the determination.
Resumen de: CN120225461A
The process for cracking ammonia is improved by using heat generated in a compression unit for compressing PSA off-gas recycled to a PSA unit to preheat liquid ammonia prior to gasification and cracking. Heat is transferred using a heat transfer fluid, such as an aqueous solution comprising from about 50% to about 60% by weight of a diol, such as ethylene glycol or propylene glycol.
Resumen de: CN120322494A
The present invention relates to a basic anion exchange membrane precursor (pAAEM) comprising a blend of at least one first polymer (P1) comprising recurring units derived from acrylonitrile and at least one second polymer (P2) comprising recurring units derived from vinyl lactam; and to an alkaline anion exchange membrane (AAEM) obtained therefrom.
Resumen de: WO2024115474A1
The aim of the invention is to transport energy produced in an environmentally friendly manner by means of an offshore wind turbine to land in a simple and reliable manner. This is achieved by a method (100) for transporting hydrogen from a floating wind turbine (10) to a water vehicle (11), wherein hydrogen is provided in a storage tank (31) of a floating wind turbine (10), and a water vehicle (11) with a transport tank (36) is positioned by the floating wind turbine (10). The hydrogen is transported from the storage tank (31) to the transport tank (36) using a line (35) which is designed to transport the hydrogen.
Resumen de: CN120225638A
The invention relates to a device/method for capturing/converting CO2. The present invention relates to a process for producing CO and water, comprising/using a CO2 capture unit (2) that produces a CO2-rich effluent (3), a water electrolysis unit (5) that converts water (4) into oxygen (6) and hydrogen (7), an RWGS unit (8) that treats the CO2-rich effluent with hydrogen (7) and produces an RWGS gas (9) enriched in CO and water, an FT unit (13) that converts the RWGS gas and produces an FT effluent (14), a first separation unit (15) that treats the FT effluent and produces a hydrocarbon effluent (17) and a gas effluent (33), a second separation unit (34) separating the first gas (33) producing a CO2-lean gas (18) and a CO2-rich gas (35) fed to the RWGS unit, a hydrogen unit (20) treating the hydrocarbon effluent to produce a hydrocarbon fraction (21).
Resumen de: JP2025173908A
【課題】飛行体内の酸素濃度を制御することができる飛行体用気体供給システムを得る。【解決手段】飛行体用気体供給システム10は、飛行機12内に配置されて空気に含まれる水分を吸着しかつ光が照射されることで水を分解して酸素を発生させる光触媒作用を有する多孔性配位高分子を含んで構成された吸着体14と、飛行機12内に配置されて飛行機12内の酸素濃度を測定可能な酸素濃度センサ16と、飛行機12内に配置されて吸着体14に光を照射可能とされると共に光の光量を調整可能とされた照明装置18とを備えている。【選択図】図1
Resumen de: US2025354277A1
A water electrolysis cell according to an embodiment includes: an anode electrode including an anode catalyst layer in which anode catalyst sheets are stacked via a gap, each anode catalyst sheet containing iridium oxide and being in the form of a nanosheet; a cathode electrode including a cathode catalyst layer in which cathode catalyst sheets are stacked via a gap, each cathode catalyst sheet containing platinum and being in the form of a nanosheet; and an electrolyte membrane containing a hydrocarbon-based material, placed between the anode electrode and the cathode electrode.
Nº publicación: CN121039844A 28/11/2025
Solicitante:
庄信万丰股份有限公司
Resumen de: AU2024276790A1
The specification describes a process for preparing an oxygen evolution reaction catalyst, comprising the steps of: (i) combining iridium powder and a peroxide salt to produce a powder mixture; (ii) carrying out thermal treatment on the powder mixture; (iii) dissolving the product from (ii) in water to produce a solution; (iv) reducing the pH of the solution from (iii) to affect a precipitation and form a solid and a supernatant; (v) separating the solid from the supernatant; and (vi) drying the solid. An oxygen evolution catalyst obtainable by the process is also described.