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一种钌镍共掺杂氧化钛基纳米颗粒催化剂及其制备方法与应用

Resumen de: CN120026369A

本发明涉及催化剂技术领域，具体涉及一种钌镍共掺杂氧化钛基纳米颗粒催化剂及其制备方法与应用。其中制备方法包括以下步骤：(1)溶解浸渍：以氯化钌、氯化镍、氧化钛为前驱体以及去离子水作为溶剂，在50～80℃搅拌6～8小时至蒸干，得固体中间产物1；(2)研磨：将固体中间产物1与一水合次磷酸钠混合后研磨，得固体中间产物2；(3)退火：将固体中间产物2在Ar/H2混合气下500～800℃加热2～4小时，自然冷却，得到产物。本发明采用两步合成法，原料原子利用率接近100％，反应过程中未使用有机试剂，绿色安全，反应级别为克级别，具有放大反应的潜力，并且贵金属含量仅为2.5％，极大的降低了催化剂的成本。

Porous transport layer integrated electrode and anion exchange membrane water electrolysis device including the same

Resumen de: KR20250072016A

본원 발명은 다공성 수송층 일체형 전극 및 이를 포함하는 음이온 교환막 수전해 장치에 대한 것으로, 보다 구체적으로는 전극에 사용할 수 있는 활성 물질로 다공성 전극을 제조함으로써 별도의 다공성 수송층(porous transport layer: PTL)이 필요하지 않고, 전극 및 다공성 수송층(PTL)으로 동시 활용이 가능한 다공성 수송층 일체형 전극 및 이를 포함하는 음이온 교환막 수전해 장치에 대한 것이다. 본원 발명에 따르면 기존 방법과 달리 전극층과 다공성 수송층(Porous Transport Layer; PTL)을 일체화함으로서 전체 음이온 교환막 수전해 장치의 제조 공정을 단순화할 뿐 아니라 성능 및 내구성을 향상시킬 수 있는 큰 장점이 있다.

HIERARCHICAL DIFFUSION BODY MANUFACTURING METHOD OF HIERARCHICAL DIFFUSION BODY AND WATER ELECTROLYSIS DEVICE INCLUDING HIERARCHICAL DIFFUSION BODY

Resumen de: WO2025105600A1

According to one embodiment of the present invention, a hierarchical porous transport layer comprises: a first porous layer which has first pores and which is formed of first particles or fibers; a second porous layer which includes second pores having an average size smaller than that of the first pores and which is formed of second particles or fibers on the first porous layer; and an intermediate layer which is formed between the first porous layer and the second porous layer, and in which the first particles or fibers and the second particles or fibers are mixed and thermally bonded to each other.

AUTONOMOUS CAPTIVE AEROSTAT WITH DEVICES FOR GENERATING AND CONVERTING SUSTAINABLE CARBON-FREE ENERGY

Resumen de: US2025162701A1

The present invention relates to an autonomous captive aerostat (2) of the type comprising a closed hydrogen-reservoir volume (24) providing lift, an outer membrane (40) equipped with photovoltaic cells (8) for collecting solar radiation, and a ground tether (20) comprising a cable for transmitting the electrical energy produced by the cells (8). The captive aerostat according to the invention is notable in that it comprises devices (4) for capturing water or moisture contained in the atmosphere constituting its outer membrane (40), means enabling this water to be converted into at least one form of energy selected from hydrogen, oxygen and heat, and pipes each enabling some of the collected water and at least one of the forms of energy generated or converted within the aerostat to be distributed to the ground. Applicable notably to the distribution of energy to urban environments.

COMPOSITE CATALYST CONTAINING MOLYBDENUM OXIDE, PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2025103048A1

Provided are a composite catalyst containing molybdenum oxide, a preparation method therefor, and a use thereof. The preparation method comprises: (1) mixing a molybdate and a ligand to obtain a mixed solution; (2) soaking nickel foam in the mixed solution, to obtain a suspension, the soaking time being not less than 1 hour; (3) performing a hydrothermal reaction and calcination. The preparation method utilizes the etching effect of molybdate on nickel foam, and immerses nickel foam in the mixed solution containing the molybdate and that ligand to cause nickel in the nickel foam to dissolve in the form of ions, which, along with molybdate ions and the ligand, grow a nickel-molybdenum complex transition layer in situ on the surface of nickel foam; by means of the hydrothermal reaction, a nickel-molybdenum-based catalyst precursor is grown on the complex transition layer, and a composite catalyst is obtained after calcination, causing the catalyst to be firmly anchored on the nickel foam substrate, thereby improving the stability and impact resistance of the catalyst, and preventing the active components in the catalyst from falling off or reducing the risk of the active components falling off from the catalyst.

MULTI-SECTION WATER ELECTROLYSIS HYDROGEN PRODUCTION ELECTROLYZER, AND METHOD FOR ADJUSTING LOAD THEREOF

Resumen de: WO2025103029A1

Disclosed in the present invention are a multi-section water electrolysis hydrogen production electrolyzer and a method for adjusting a load thereof. The multi-section water electrolysis hydrogen production electrolyzer comprises a left electrode plate (5) and a right electrode plate (9) that are located at two ends, and at least one middle anode plate (7) and at least one middle cathode plate (8) that are located between the two electrode plates, wherein the middle anode plate (7) and the middle cathode plate (8) divide an electrolytic chamber into a plurality of electrolytic cell groups (24). In the present invention, the load power and start/stop of electrolytic cell groups (24) are group-controlled by controlling the magnitudes of a current flowing through a middle anode plate (7) and a voltage applied thereto, such that the change in the load power of the multi-section water electrolysis hydrogen production electrolyzer is realized, and when the load power of some cell groups changes, the remaining cell groups produce hydrogen at an optimal load power.

RESPIRATORY SYSTEM WITH ADJUSTABLE CONCENTRATION OF HYDROGEN-OXYGEN GENERATOR

Resumen de: WO2025102226A1

Disclosed is a respiratory system with the adjustable concentration of a hydrogen-oxygen generator, which is used for changing the concentration of the breathing gas of an assisted person, and comprises: a hydrogen-oxygen supply auxiliary device (13), a pure water electrolysis hydrogen-oxygen manufacturing machine (1, 1'), a wet bottle (3), and a hydrogen concentration detector (14). The pure water electrolysis hydrogen-oxygen manufacturing machine (1, 1') comprises: an ion exchange membrane (10, 10'), wherein the two sides of the ion exchange membrane (10, 10') are respectively coated with an oxidation catalyst layer (100, 100') and a reduction catalyst layer (102, 102'); a pair of an anode metal layer (110, 110') and a cathode metal layer (112, 112') with pores (114); an anode (120, 120') for guiding the anode metal layer (110, 110') and a cathode (122, 122') for guiding the cathode metal layer (112, 112'); and a sealed container body (2, 2') for containing the above-mentioned structure of the pure water electrolysis hydrogen-oxygen manufacturing machine (1, 1'), the sealed container body (2, 2') being provided with a water injection hole (20), a hydrogen hole (22, 22'), and an oxygen hole (24, 24'). The wet bottle (3) comprises: an oxygen transmission pipe (32), a hydrogen transmission pipe (30), a mixing and humid output pipe (34) connected to the hydrogen-oxygen supply auxiliary device (13), and a bottle body (36), wherein one end of the oxygen transmission pipe (32) and

THERMALLY-COUPLED METAL HYDRIDE ENERGY SYSTEMS AND METHODS

Resumen de: WO2025106146A2

One embodiment is directed to an integrated energy storage and distribution system, comprising: an electrolysis module configured to utilize intake electricity and intake water to output hydrogen gas, oxygen, and surplus water; a metal hydride hydrogen storage module configured to controllably store, or alternatively release, hydrogen gas; a fuel cell module configured to controllably intake hydrogen gas and output electricity and water vapor; and a computing system operatively coupled to the electrolysis module, storage module, and fuel cell module and configured to coordinate operation of these modules relative to each other; wherein the electrolysis, storage, and fuel cell modules are thermally coupled such that heat energy released from one or more modules which may be at least transiently exothermic may be utilized by one or modules which may be at least transiently endothermic.

MEMBRANE-ELECTRODE ASSEMBLY AND MANUFACTURING METHOD THEREOF

Resumen de: WO2025105885A1

A membrane-electrode assembly includes a first catalyst electrode, a polymer electrolyte membrane covering a side surface and an upper surface of the first catalyst electrode, and a second catalyst electrode disposed on the polymer electrolyte membrane, in which at least a portion of a corner area in which the side surface and the upper surface of the first catalyst electrode are connected has a curved shape.

PROTON CONDUCTING ELECTROLYTE POWDER, PROTON CONDUCTING ELECTROLYTE MEMBRANE, AND PREPARATION METHOD THEREOF

Resumen de: WO2025105611A1

The present invention relates to a proton conducting electrolyte powder, an electrolyte membrane, and a preparation method thereof. Specifically, the present invention relates to a heterophasic BCZYYb proton conducting electrolyte powder obtained using low-temperature solid synthesis at 1000 to 1200°C, a proton conducting electrolyte membrane with a monophasic BCZYYb (Ba,Ce,Zr,Y,Yb) composition prepared by sintering the proton conducting electrolyte powder at 1300 to 1500°C, and a preparation method of the proton conducting electrolyte membrane, comprising calcining and sintering at the temperature.

HIERARCHICAL POROUS TRANSPORT LAYER, MANUFACTURING METHOD FOR HIERARCHICAL POROUS TRANSPORT LAYER, AND WATER ELECTROLYSIS APPARATUS COMPRISING HIERARCHICAL POROUS TRANSPORT LAYER

Resumen de: WO2025105600A1

According to one embodiment of the present invention, a hierarchical porous transport layer comprises: a first porous layer which has first pores and which is formed of first particles or fibers; a second porous layer which includes second pores having an average size smaller than that of the first pores and which is formed of second particles or fibers on the first porous layer; and an intermediate layer which is formed between the first porous layer and the second porous layer, and in which the first particles or fibers and the second particles or fibers are mixed and thermally bonded to each other.

ELECTROCHEMICAL CELL

Resumen de: WO2025104825A1

This electrolysis cell (10) is provided with: a support substrate (12) that has a first through hole (40a); and a hydrogen electrode collector layer (13) that has a first embedded part (70a) which is embedded in the first through hole (40a). A first layered part (80) includes a first gap (81) that is in contact with a first surface (T1) of the support substrate (12), the first surface being on the hydrogen electrode active layer (14) side. The first embedded part (70a) includes a first gap (71a) that is in contact with the inner peripheral surface (T1) of the first through hole (40a). The first gap (71a) extends along the thickness direction of the support substrate (12).

APPARATUS FOR MANUFACTURING WATER ELECTROLYSIS MEMBRANE AND METHOD FOR MANUFACTURING WATER ELECTROLYSIS MEMBRANE USING SAME

Resumen de: WO2025105666A1

The present invention relates to an apparatus for manufacturing a water electrolysis membrane and method for manufacturing a water electrolysis membrane using same, and can provide a water electrolysis membrane having excellent physical properties, such as low sheet resistance, low hydrogen permeability, and excellent durability, compared to conventional commercial membranes.

ELECTROCHEMICAL CELL

Resumen de: WO2025104823A1

An electrolytic cell device (1) is provided with a current collector member (25) and an electrolytic cell (10) that is electrically connected to the current collector member (25). The electrolytic cell (10) is provided with a hydrogen electrode current collector layer (13), a support substrate (12) that is embedded within the hydrogen electrode current collector layer (13) and has through-holes (40), and a hydrogen electrode active layer (14) disposed on the hydrogen electrode current collector layer (13). The current collector member (25) includes overlapping parts (25a) that overlap the through-holes (40) in a thickness direction, and non-overlapping parts (25b) that do not overlap the through-holes (40) in the thickness direction. The density of the overlapping parts (25a) is greater than the density of the non-overlapping parts (25b).

ELECTROCHEMICAL CELL

Resumen de: WO2025104826A1

In the present invention, an electrolysis cell (10) is provided with: a support substrate (12) having a through-hole (40); a hydrogen-pole current collector layer (13) having an embedded section (70) which is embedded in the through-hole (40), and a first layer section (80) continuous with the embedded section (70) and disposed above the support substrate (12); and a hydrogen-pole active layer (14) disposed above the hydrogen-pole current-collector layer (13). The first layer section (80) includes a void (81) that adjoins a first surface (T1) on the hydrogen-pole active layer (14) side of the support substrate (12).

ELECTROCHEMICAL CELL

Resumen de: WO2025104824A1

An electrolysis cell (10) is provided with: a support substrate (12) having a through hole (40); a hydrogen electrode current collector layer (13) having an embedded part (70) embedded in the through hole (40); a hydrogen electrode active layer (14) disposed on the hydrogen electrode current collector layer (13); an oxygen electrode layer (17); and an electrolyte layer (15) disposed between the hydrogen electrode active layer (14) and the oxygen electrode layer (17). The embedded part (70) includes a cavity (71a) that is in contact with a first end region (43) of an inner peripheral surface (41) of the through hole (40).

CARBON NANOTUBE-SUPPORTED NITROGEN-DOPED CATALYST AND PREPARATION METHOD THEREFOR

Resumen de: WO2025103494A1

The present invention relates to the field of water electrolysis and hydrogen production. Disclosed is a carbon nanotube-supported nitrogen-doped catalyst. The catalyst has a carbon nanotube structure as a support, and cobalt and ruthenium as active components, wherein the content of the cobalt element is 30-45w%, the content of the ruthenium element is 1-7wt%, and the proportion of the ruthenium element present in the form of RuN is 60-90wt% relative to the total ruthenium element. A graphitized structure of the catalyst is conducive to charge conduction, Ru is uniformly loaded on the surface of the support by means of a low-temperature reduction process and interaction with defect sites on the surface of the support, and then after high-temperature roasting, Ru interacts with the N element and the metal Co, thereby improving the hydrogen evolution catalytic activity of the catalyst.

POROUS HYDROPHILIC SEPARATOR, ITS METHOD OF PRODUCTION AND AN ALKALINE ELECTROLYZER WITH SUCH SEPARATOR

Resumen de: WO2025103558A1

Porous hydrophilic separator, its method of production, and an alkaline electrolyzer with such separator In an alkaline electrolyzer (12), especially for production of hydrogen gas, the separator (11) has larger pores in layers (8, 9) on its outer sides (7A, 7C), facing the electrodes (13, 14), than in the bulk layer (10). In a practical embodiment, the separator (11) is composed of two diaphragms (7, 7'), each with asymmetric pore structure, where the diaphragms (7, 7') are oriented such that largest pores are on the outer sides of the sep- arator (11).

METHOD FOR GENERATING HYDROCARBON MOLECULES BY MAGNETIC FIELD-ASSISTED ENERGY RADIATION

Resumen de: WO2025103448A1

A method for generating hydrocarbon molecules by magnetic field-assisted energy radiation, comprising: in the presence of an external magnetic field, making a composite catalyst come into contact with at least one hydrogen-containing source; and performing energy radiation on the composite catalyst and the hydrogen-containing source to generate hydrogen molecules, wherein the composite catalyst comprises at least one nano-substrate structure and at least one atomic site, and the atomic site comprises one or more chemical elements selected from the group consisting of Mn, Co, Fe, Al, Cu, Ni, Zn, Ti, La, Ru, Rh, Ag, Au, Pt, Pd, Os, and Ir.

ELECTROLYTIC HYDROGEN PRODUCTION SYSTEM CAPABLE OF CONTINUOUSLY ADAPTING TO POWER SUPPLY FLUCTUATION, AND ELECTROLYTIC HYDROGEN PRODUCTION METHOD

Resumen de: WO2025103030A1

Disclosed in the present invention are an electrolytic hydrogen production system capable of continuously adapting to power supply fluctuation, and an electrolytic hydrogen production method. An electrolytic cell of the electrolytic hydrogen production system comprises n electrolytic sections (6); each electrolytic section (6) comprises 2y electrolytic chambers (5), two cathode end plates (2) and an anode middle plate (1); the two cathode end plates (2) are located at two ends of the electrolytic section (6), and the anode middle plate (1) is located in the middle of the electrolytic section (6); each electrolytic section (6) is divided into a left part and a right part, and each part comprises y electrolytic chambers (5), wherein n is greater than 1, y is greater than 1, and the n electrolytic sections (6) are continuously arranged in series from 1 to n. The electrolytic cell of the electrolytic hydrogen production system of the present invention comprises n electrolytic sections (6), and the temperature of an electrolyte in each electrolytic section (6) of the electrolytic cell is constant during operation, so that the electrolytic hydrogen production system of the present invention can be continuously regulated and controlled in a fluctuating power supply state, has high adaptability, is more adaptable to variable and fluctuating power supply input conditions, and has better safety performance.

A SYSTEM FOR UTILIZING OIL AND GAS FIELD PRODUCED WATER AND CAPTURED CARBON DIOXIDE TO PRODUCE HIGH-VALUE PRODUCTS

Resumen de: US2025162891A1

The present invention relates to systems and processes for utilizing produced water and captured carbon dioxide to produce high-value products. The system includes a produced water processing system, a carbon capture system, an electrolyzer, and a conversion chamber. The electrolyzer includes a first chamber, a second chamber, and a semi-permeable membrane and first electrode in the first chamber and a second electrode in the second chamber. The first chamber receives treated saturated produced water. The second chamber is operated at a second operating pressure that is less than the first operating pressure and facilitates the passage of sodium ions across the membrane. A current is applied to the electrodes such that the first electrode functions as an anode and the second electrode functions as a cathode, producing hydrogen gas and sodium hydroxide in the second chamber and chlorine gas in the first chamber. The polarity of the electrodes and the flow of reagents into the first and second chambers and the flow of products out of the first and second chambers may be reversed.

METHOD FOR CRACKING AMMONIA

Resumen de: US2025162866A1

A method for producing hydrogen using a feed stream comprising ammonia is provided. The method can include the steps of: heating the feed stream in a first heat exchanger to produce a heated feed stream, wherein the heated feed stream is at a temperature above 500° C.; introducing the heated feed stream into a first reaction zone under conditions effective for catalytically cracking the heated feed stream to produce a raw hydrogen stream, wherein the raw hydrogen stream comprises hydrogen and nitrogen; cooling the raw hydrogen stream by indirect heat exchange against a first cooling fluid to form a cooled hydrogen stream; and purifying the raw hydrogen stream to produce a hydrogen product stream and a tail gas, wherein the tail gas has a higher concentration of nitrogen as compared to the hydrogen product stream.

SINGLE CRYSTALLINE TA3N5 NANOPARTICLES MODIFIED WITH A MOX COCATALYST, A CATALYST, METHODS FOR WATER SPLITTING USING THE CATALYST, AND METHODS TO MAKE SAME

Resumen de: US2025161923A1

Tantalum nitride and specifically a novel Ta3N5 nanoparticles, such as single crystalline Ta3N5 nanoparticles, are disclosed. The nanoparticles used with a co-catalyst is further disclosed. The present invention also relates to Ta3N5 nanoparticles modified with a metal oxide, such as a CoOxcocatalyst, wherein Ox represents an oxide that is part of the cobalt oxide. A catalyst, such as for water oxidation to produce O2, is disclosed. The nanoparticles can further be modified to include a water reducing catalyst. A water splitting catalyst is further disclosed. Methods of making the nanoparticles and catalyst are also disclosed. Methods to split water utilizing the catalyst are further described.

ELECTROLYZER SYSTEM INCLUDING SINGLE MASS FLOW CONTROLLER FOR MULTIPLE HYDROGEN GENERATION MODULES AND METHOD OF OPERATING THEROF

Resumen de: US2025163597A1

A method of operating an electrolyzer system includes providing steam from a steam source through a system steam conduit to module steam conduits located in respective electrolyzer modules, controlling a flow rate of the steam through the system steam conduit using a system mass flow controller located on the system steam conduit, providing portions of the steam to the module steam conduits and providing steam in the module steam conduits to respective stacks of electrolyzer cells located in respective hotboxes in the respective electrolyzer modules, and operating the stacks to generate a hydrogen product stream and an oxygen exhaust stream.

ELECTROLYZER POWER CONTROL WITH HARMONIC ABSORPTION

Nº publicación: US2025163596A1 22/05/2025

Solicitante:

BLOOM ENERGY CORP [US]
Bloom Energy Corporation

Resumen de: US2025163596A1

Provided is an electrolyzer power control system that includes a reactive harmonic current reference generation stage. The reactive harmonic current reference generation stage selects a reactive power set point for reactive power drawn by a rectifier from a grid, determines a reactive power current reference based on the reactive power set point, aggregates the reactive power current reference with a reference current of harmonic currents that the rectifier injects in or draws from the grid, determines a reactive harmonic current reference that compensates for both the reactive power and the harmonic currents and outputs the reactive harmonic current reference. Switching signals that operate the rectifier are generated based on the reactive harmonic current reference.