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507
results.
Updated on
06/08/2025 [06:57:00]
Absstract of: WO2025042413A1
A method of running a water electrolyzer that can operate on seawater without a significant voltage rise. In some embodiments, the method includes the use of specific ionomers in the catalyst layer. In some embodiments, the method involves using a Break-In Procedure. In some embodiments, the method can include periodic interruption of the voltage to the AEM electrolyzer.
Absstract of: TW202500506A
Provided are: a carbon nanotube molded body containing carbon nanotubes, wherein the specific surface area of the carbon nanotube molded body is 700 m2/g or more, the pore distribution of the carbon nanotube molded body is 3-15 nm, the tensile strength of the carbon nanotube molded body is 45 MPa or more, and the Young's modulus of the carbon nanotube molded body is 1600 MPa or more; and a method for producing the carbon nanotube molded body. Also provided are: an electrode for electrochemical water splitting that contains the carbon nanotube molded body and platinum supported on the carbon nanotube molded body and a method for producing the same; and an electrochemical water splitting device provided with the electrode for electrochemical water splitting.
Absstract of: US2023373882A1
The invention relates to a process, catalysts, materials for conversion of renewable electricity, air, and water to low or zero carbon fuels and chemicals by the direct capture of carbon dioxide from the atmosphere and the conversion of the carbon dioxide to fuels and chemicals using hydrogen produced by the electrolysis of water.
Absstract of: AU2023396734A1
The present invention relates to an ammonia decomposition catalyst and a method for producing same and, more specifically, to an ammonia decomposition catalyst containing alumina (Al
Absstract of: CN118086964A
The invention belongs to the technical field of water electrolysis hydrogen production, and particularly relates to a water oxidation catalyst and a preparation method and application thereof. According to the method, a weak acid heterogeneous soaking system is manufactured through the hydrolysis effect of metal cations in a hydrolyzable metal salt solution, a slow action is conducted on the surface of the metal substrate, and the surface of the metal substrate can be partially etched while metal oxides on the surface are removed; the etched metal ions and the hydrolyzed metal ions are combined on the surface of the substrate to form an LDH catalyst structure, so that relatively high catalytic activity of the LDH catalyst structure is ensured; meanwhile, under the interface confinement effect, a compact transition layer structure is slowly formed on the interface of the metal substrate and the catalyst layer. The transition layer is used as a bridge between the metal substrate and the catalyst layer, has the same structure as LDH, is more compact in morphology, and completely covers the surface of the metal substrate, so that the LDH catalytic structure layer is firmly anchored on the surface of the metal substrate, and the OER catalyst has high activity and high stability under the condition of industrial current density.
Absstract of: WO2025159940A1
Described is a system and method for green hydrogen production via electrolysis. The system includes a steam boiler unit (204) configured to produce a discharged waste water stream (200), an electrolysis unit (300) configured to produce hydrogen (302) and oxygen (304) from the discharged waste water stream (200); and a hydrogen storage unit (708) for storing a portion of the hydrogen (302) produced by the electrolysis unit (300) as a product.
Absstract of: AU2023408768A1
A method of hydrogen production includes providing a solution and immersing a device in the solution. The device includes a substrate having a surface, an array of conductive projections supported by the substrate and extending outward from the surface of the substrate, and a plurality of catalyst nanoparticles disposed over the array of conductive projections. The solution includes dissolved sodium chloride (NaCl).
Absstract of: WO2025160516A1
A system and method of making hydrogen from water. A reaction vessel is provided with an outer shell, a central shaft, and concentric inner tubes separated by annular spaces. Water is delivered to the annular spaces by a water pump through an inlet defined in the reaction vessel. The water courses along a tortuous flow path. That path begins at an inner annular space around a central shaft. It ends at an outer annular space. The water emerges from the reaction vessel through an outlet associated with a manifold. A vibratory stimulus is applied to the reaction vessel and water. Water molecules are dissociated into hydrogen molecules and oxygen atoms. These reaction products are delivered through the manifold along an effluent flow path to a receiving pressure vessel before deployment to a sub-assembly for harnessing clean energy.
Absstract of: WO2025160419A1
An integrated energy system including a power plant is discussed herein. In some examples, the integrated energy system may include a power plant configured to generate steam, a hydrothermal decomposition reactor configured to receive at least a portion of the steam (H2O) from the power plant to react with Methane (CH4) within the hydrothermal decomposition reactor to produce Hydrogen (H2) and Carbon Dioxide (CO2), a first separation unit configured to separate the Hydrogen (H2) and the Carbon Dioxide (CO2), a Solid Oxide Stack configured to receive at least a portion of the Carbon Dioxide (CO2) and to produce Carbon Monoxide (CO), a second separation unit configured to separate the Carbon Dioxide (CO2) from the Carbon Monoxide (CO), and a methanol synthesis reactor configured to receive at least a portion of the Hydrogen (H2) and at least a portion of the Carbon Monoxide (CO) to produce Methanol (CH3OH).
Absstract of: WO2025159903A1
A system for separating a fluid in the operation of an electrochemical system includes: a cathode separator configured to separate a fluid into a first stream having hydrogen gas and a second stream having water and dissolved hydrogen; and a makeup water tank. The makeup water tank is configured to: receive the second stream from the cathode separator; operate at a pressure that is greater than atmospheric pressure and less than an operating pressure of the cathode separator; and separate at least a portion of the dissolved hydrogen from the water via a reduction in pressure from the cathode separator to the makeup water tank to provide a purified water stream and hydrogen gas. The hydrogen gas from the makeup water tank is configured to be transferred out of the makeup water tank and the purified water stream is configured to be transferred out the makeup water tank.
Absstract of: WO2025159042A1
The purpose of the present disclosure is to provide an electrolytic cell stack capable of increasing the amount of product generated by electrolysis while suppressing the temperature rise of the cell stack. An electrolytic cell stack (101) according to the present disclosure comprises: an electrolysis unit cell (105) that has a hydrogen electrode containing Ni, an oxygen electrode, and a solid electrolyte membrane and is formed in the circumferential direction of a base tube; and an interconnector that electrically connects a plurality of electrolysis unit cells arranged in the axial direction of the base tube. When the distance between the ends of the oxygen electrode, oriented in the axial direction of the base tube, in each electrolysis unit cell is defined as the width W of the electrolysis unit cell, and the area on the base tube in which the plurality of electrolysis unit cells are arranged is divided into a first end portion (10), a central portion (11), and a second end portion (12) along the axial direction, the widths W1, W3 of the electrolysis single cells (105b, 105c) positioned in the first end portion and/or the second end portion is 1.5 to 3 times greater than the width W2 of the electrolysis unit cell (105a) positioned in the central portion.
Absstract of: WO2025156736A1
Provided in the present application are a multi-electrolytic-cell series-parallel hydrogen production control method and a power generation system. The method in the present application comprises: acquiring electrolysis power parameters of a plurality of electrolytic cells and a real-time generation power of a power generation system; and then, on the basis of the plurality of electrolysis power parameters and the real-time generation power, controlling the plurality of electrolytic cells to sequentially and repeatedly execute electrolysis start-stop operations, wherein each electrolysis start-stop operation comprises: comparing the magnitude of a target round startup output power with the magnitude of a rated minimum electrolysis power of a target electrolytic cell; on the basis of a corresponding magnitude determination, performing subsequent control operations; and then in the subsequent control operations, performing a corresponding control operation by means of determining whether the target round startup output power exceeds a danger warning threshold power. Thus, the hydrogen production efficiency and flexibility of the plurality of electrolytic cells in the hydrogen production power generation system are improved, the stability of the hydrogen production power generation system is improved, and the service life of the hydrogen production power generation system is prolonged.
Absstract of: US2025243592A1
A water electrolysis electrode includes a conductive substrate and a layered double hydroxide layer. The layered double hydroxide layer is disposed on a surface of the conductive substrate. The layered double hydroxide layer includes two or more transition metals. The layered double hydroxide layer includes a chelating agent.
Absstract of: US2025243590A1
The invention relates to a novel frame for a PEM electrolysis cell and for a PEM electrolysis cell stack. The subject matter of the invention is the frame, a PEM electrolysis cell and stack-type PEM electrolysis devices, which comprise the frame according to the invention, preassembled components and methods for producing preassembled components and stack-type PEM electrolysis devices. The frame, PEM electrolysis cell and stack-type PEM electrolysis devices according to the invention are suitable for generating high-pressure hydrogen in combination with the use of thin proton exchange membranes. The invention is based on a novel frame- and sealing-concept. The invention also relates to a cover for stack-type PEM electrolysis devices.
Absstract of: US2025243589A1
To provide a water electrolysis cell which reduces the concentration of hydrogen reaching the oxygen generating electrode side before the concentration increases with a simple configuration. An electrolyte membrane, a catalyst layer, and a separator for flowing a fluid are provided. A water electrolytic cell for generating hydrogen and oxygen by supplying water and applying a voltage, wherein a hydrogen reaction catalyst for promoting a reaction between hydrogen and oxygen is provided at a site where oxygen generated and residual water flow on the surface of the separator on the oxygen generating electrode side.
Absstract of: US2025243594A1
An embodiment may provide a metal-positive ion-MXene nanosheet hybrid composite. According to the embodiment, by providing a hybrid composite composed of metal particles/positive ions/MXene nanosheets, there is a feature that may provide a hydrogen evolution reaction catalyst having excellent electrochemical performance with a high current value and low overvoltage.
Absstract of: US2025243057A1
The present invention discloses a zero-carbon-emission device and process for generating hot air or high-temperature steam or producing pure water, including a gas storage unit, a gas conduct device, a reaction chamber, and a heating conduct device, where the gas storage unit is configured to store hydrogen and oxygen or air respectively; the gas storage unit is connected to the reaction chamber through the gas conduct device respectively, and the gas conduct device is configured to convey the oxygen or the air and the hydrogen of the gas storage unit to the reaction chamber; the reaction chamber is further provided with a hot and moist air outlet, and the hot and moist air outlet is connected to the heating conduct device; and the reaction chamber is provided with a plurality of layers of pipes that are connected in sequence.
Absstract of: US2025242312A1
The present disclosure is directed to a molybdenum iron composition that includes 55 to 60 weight percent MoFe2, 33 to 37 weight percent Mo5.08Fe7.92, and 5 to 10 weight percent MoO3 based on the total weight of the composition. The composition is in the form of nanosheets. A nanocomposite membrane including the molybdenum iron composition is also provided. The nanocomposite membrane includes 0.01 to 0.5% molybdenum iron composition by weight uniformly distributed in a polyvinylidene fluoride polymeric matrix based on a total weight of the nanocomposite membrane. The nanocomposite membrane of the present disclosure finds application in filtration of a contaminated feed mixture and for generating hydrogen.
Absstract of: US2025244729A1
A simulation system and method for hydrogen production by water electrolysis. The simulation system for hydrogen production by water electrolysis includes: a first simulation unit used for simulating a hydrogen production power system to obtain hydrogen production electrical parameters; a controller unit used for outputting a control instruction to control hydrogen production process parameters in a hydrogen production chemical system; a second simulation unit used for simulating the hydrogen production chemical system according to the hydrogen production electrical parameters and the control instruction so as to obtain a hydrogen production result; and a data interaction unit, the first simulation unit, the controller unit, and the second simulation unit being capable of performing data interaction by means of the data interaction unit. Joint simulation of complete chemical and electrical processes for hydrogen production by water electrolysis can be realized.
Absstract of: US2025246642A1
The present invention provides an oxygen evolution reaction catalyst, wherein the oxygen evolution reaction catalyst is an oxide material comprising iridium, tantalum and ruthenium: wherein the oxygen evolution catalyst comprises a crystalline oxide phase having the rutile crystal structure; wherein the crystalline oxide phase has a lattice parameter a of greater than 4.510 Å.
Absstract of: US2025246660A1
Described is a long-lasting, heavy-duty ion exchange membrane comprising a fluorinated ionomer, a CexM1-xOy nanoparticle, and optional additives; where x is 0.2-0.9, y is 1-3, and M is Zr, Gd, Pr, Eu, Nd, La, Hf, Tb, Pd, Pt, or Ni. Optional additives may include reinforcement layers, which may be embedded in the ion exchange membrane. Such membranes are formed from ion exchange polymer dispersions and are useful to form membrane assemblies for fuel cell or water electrolysis applications. The present membranes and membrane assemblies have improved chemical stability and durability in such applications.
Absstract of: WO2025157947A1
The present invention discloses an electrolyser system and a method for operating the electrolyser system. The electrolyser system comprises an electrolyser stack further comprising a cathode compartment and an anode compartment separated by a diaphragm. A catholyte inlet of the stack is configured for supplying catholyte to the cathode compartment of the stack and an anolyte inlet configured for supplying anolyte to the anode compartment of the stack. A catholyte outlet transports gas-electrolyte mixture from the cathode compartment to a hydrogen separator and an anolyte outlet transports gas-electrolyte mixture from the anode compartment to an oxygen separator. A pressure control unit is configured to establish a predefined differential pressure between the cathode compartment and the anode compartment of the stack by maintaining the pressure at the cathode compartment greater than the pressure at the anode compartment.
Absstract of: GB2637456A
An electrolyser system (10) comprising a heat storage unit (14) and an electrolyser (16) is described. The heat storage unit (14) comprises at least one heat source infeed. The electrolyser (16) comprises at least one electrolyser cell (20), a steam inlet and at least one off-gas outlet. The off-gas outlet is connected to the heat source infeed to heat the heat storage unit (14). The heat storage unit (14) is configured to use its stored heat to produce steam for feeding into the steam inlet and for generating electrical power, either one at a time or both at the same time. The invention also provides a system comprising an intermittent or variable electricity source (12) and an electrolyser system (10) as defined above. The intermittent or variable electricity source (12) can be configured to power the electrolyser (16) and to heat the heat storage unit (14) via a heating element, either both at the same time or individually.
Absstract of: EP4592425A1
The present invention discloses an electrolyser system (100) and a method for operating the electrolyser system. The electrolyser system (100) comprises an electrolyser stack (101) further comprising a cathode compartment and an anode compartment separated by a diaphragm. A catholyte inlet (102) of the stack (101) is configured for supplying catholyte to the cathode compartment of the stack (101) and an anolyte inlet (103) configured for supplying anolyte to the anode compartment of the stack (101). A catholyte outlet (104) transports gas-electrolyte mixture from the cathode compartment to a hydrogen separator (106) and an anolyte outlet (105) transports gas-electrolyte mixture from the anode compartment to an oxygen separator (107). A pressure control unit (110) is configured to establish a predefined differential pressure (Δp) between the cathode compartment and the anode compartment of the stack (101) by maintaining the pressure at the cathode compartment greater than the pressure at the anode compartment.
Nº publicación: EP4593128A2 30/07/2025
Applicant:
CALIFORNIA INST OF TECHN [US]
California Institute of Technology
Absstract of: EP4593128A2
Provided herein is a method for producing a cement material, said method comprising steps of: a. reacting sulfur dioxide and water to form a first acid, the first acid comprising at least one sulfur-containing anion; b. reacting the first acid and a first cement precursor to form a second cement precursor; wherein the second cement precursor comprises the at least one sulfur-containing anion; and c. converting the second cement precursor to the cement material. Also provided is a system for producing a cement material.
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