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1034
results.
Updated on
30/06/2025 [07:02:00]
Results 375 to 400 of 1034
Absstract of: US2025171915A1
A method by which an environmental energy (e.g., wave energy) is harvested, converted into electrical power, and thereafter used to electrolyze seawater into hydrogen and chlorine gases. Those gases are recombined into hydrogen chloride from which is formed hydrochloric acid solution which is diluted and deposited at a depth sufficient to ensure its neutralization and sequestration for a significant period of time (e.g., for over a millennium). By removing chloride ions from a portion of the sea adjacent to its upper surface and depositing them into a portion of the sea more adjacent to its bottom, acidity is shifted from the surface to base of the sea, and the surface ocean is given a greater ability to absorb and buffer atmospheric carbon dioxide without a corresponding increase in acidity.
Absstract of: US2025171300A1
The present invention relates to a process for the reforming of ammonia, wherein the process comprises(i) providing a reactor containing a catalyst comprising Ru supported on one or more support materials, wherein the one or more support materials display a BET surface area of 20 m2/g or more, and wherein the catalyst contains 1 wt.-% or less of Ni and Co;(ii) preparing a feed gas stream comprising NH3;(iii) feeding the feed gas stream prepared in (ii) into the reactor and contacting the feed gas stream with the catalyst at a pressure of greater than 10 bara and at a temperature in the range of from 200 to 750° C.;(iv) removing an effluent gas stream comprising H2 and N2 from the reactor.
Absstract of: US2025170522A1
The present invention relates to the use, for the drying of wet gas comprising traces of alkaline hydroxide, of a solid desiccant comprising at least one kaolin compound.The invention also relates to the process for drying wet gas comprising traces of alkaline hydroxide, comprising at least one stage of bringing said wet gas into contact with a solid desiccant comprising at least one kaolin compound.
Absstract of: US2025174692A1
Provided are methods, comprising applying a voltage to a first parent mixture comprising (a) a first material and (b) a second metal, the first material optionally comprising a metal having a standard reduction potential less than the standard hydrogen electrode (SHE) at 0 V vs SHE, the applying being performed in the presence of a counter electrode that comprises the second metal, the first parent mixture and the counter electrode contacting an electrolyte, the applying being performed under such conditions that the second metal is selectively removed from the first parent mixture so as to leave behind a nanoporous portion of the first material, the nanoporous portion of the first material comprising interconnected ligaments defining pores therebetween, the pores being open to the environment exterior to the nanoporous portion of the first material, the pores being characterized as having an average cross-section in the range of from about 5 to about 100 nm, the applying optionally being performed in an inert environment.
Absstract of: KR20250075817A
본 발명은 우수한 물분해 수소발생반응(Hydrogen evolution reaction, HER) 활성을 갖는 합금 나노시트 및 이의 제조방법에 관한 것이다. 보다 구체적으로, 본 발명은 전기화학적 물분해 반응 수소발생 촉매 활성을 갖는 텅스텐 나이오븀 디셀레나이드 (W1-xNbxSe2, 0 < x ≤ 1) 합금 나노시트 또는 텅스텐 나이오븀 바나듐 디셀레나이드(W1-(y+z)NbyVzSe2, 0 < y ≤ 1, 0 < z ≤ 1) 및 이들의 조성비를 정량적으로 조절 가능한 콜로이드 용액 반응 제조방법에 관한 것이다.
Absstract of: KR20250075808A
본 발명은 바닷물을 이용한 소금과 수소의 생산시스템에 관한 것으로, 원수(바닷물 또는 해변염지하수)에 포함된 부유물, 실트, 금속, 플라스틱을 차압에 의해 셀프클리닝필터에의한 여과, 마이크로 플라스틱, 미생물, 유기성 물질을 제거하는 정밀 및 한외여과막 및 역삼투막분리에 의한 1가의 나트륨 및 칼륨, 2가의 칼슘 및 마그네슘, 3가이온의 알루미늄 등의 금속성 양이온과 염소이온, 황산이온, 질산이온,인산이온, 탄산이온등의 음이온을 제거하여 농축수는 농축수저장조로 보내고 역삼투분리막을 통과한 물은 투과수저장조로 보내는 전처리부와; 농축수저장조로부터 공급되는 농축수를 돔하우스로 공급하여 열에 의해 수분을 증발시켜 응축수저장조로 공급하고, 수분이 증발하여 생산되는 고체소금과 액체소금을 생산하는 소금생산부와; 응축수저장조에 저장된 물을 수처리장치를 통해 총용해성고형물질이 설정 ppm 이하로 걸러진 순수한 물을 전기분해장치로 공급하여 전기분해에 의해 수소를 생산하는 수소생산부;를 포함하는 것을 특징으로 하며, 전처리하여 얻어지는 바닷물을 열에 의해 고체소금과 소금물을 생산하고, 소금물은 재처리를 통해 기능성 액체소금을 생산하며, 액체소금에 특정 첨가제를 투입하여 기�
Absstract of: KR20250076382A
태양광 수소생산용 광전극 및 이의 제조방법을 제공한다. 상기 광전극은 양자점이 코팅된 금속산화물 필름을 포함하는 광전극으로, 상기 양자점에 의해 광전극의 광흡수 파장 범위가 넓어진 광전기화학적 수소생산용 금속산화물 기반의 광전극이다. 또한, 상기 광전극은 연속 이온층 흡착 및 반응법(Successive Ionic Layer Adsorption and Reaction)에 의해 양자점이 균일하게 코팅되어 광전기화학적 수소생산 성능이 향상될 수 있다.
Absstract of: KR20250076184A
본 발명의 일실시예는 암모니아 산화 반응에서의 피독 문제를 개선하고 내구성을 향상시킨 암모니아 산화 반응용 금속간 화합물 PtZn 촉매 및 그 제조방법을 제공한다.
Absstract of: KR20250076122A
본 발명은 알칼리 수전해 스택에서 단위전지를 구성하는 전극 중 음극 및 그의 제조 방법에 관한 것으로, 지지체를 배제한 묶음 전극을 포함하고, 묶음 전극은 촉매 슬러리가 직접적으로 담지 된 가스확산층으로 구성되어, 촉매 슬러리를 지지체에 담지하지 않아 묶음 전극의 두께를 0.5 내지 3 mm로 감소시키는 것을 특징으로 한다. 기존의 촉매 담지 기술에 비해 간편하고 경제적으로 전극을 제조하는 기술로써 전도성 고분자를 바인더로 사용하여 촉매 담지 가스확산층을 포함하는 알칼리 수전해용 음극 및 그의 제조 방법에 관한 것이다.
Absstract of: AU2023381476A1
A cell frame adapted for use in a pressurised electrolyser cell stack is provided. From an inner circumferential rim of the cell frame, a circumferential radial shelf with inwardly tapering thickness is provided, such that an annular space between a circumferential radial shelf and a neighbouring circumferential radial shelf is provided when cell frames are stacked in alignment with each other, and that outwardly of the circumferential radial shelf, a mobility link is provided which connects the radial shelf to the remaining cell frame.
Absstract of: AU2023374771A1
Cell for forming an electrolyser comprising at least one diaphragm or membrane having a first side and a second side opposite the first side, a first cell plate, arranged on the first side of the diaphragm, provided with a first electrode, provided with an inlet channel for supplying or draining electrolyte to or from the electrode, provided with a first discharge channel for discharging oxygen from the electrode, at least one second cell plate, arranged on the second side of the diaphragm, provided with a second electrode and provided with a second discharge channel for discharging hydrogen from the electrode wherein the at least one first and second cell plate are made of a polymer material.
Absstract of: US2025171922A1
An air separation system includes an air separation unit and at least one solid oxide electrolyser cell, the air separation unit including a source gas infeed, the at least one solid oxide electrolyser cell including an anode, a cathode and an electrolyte, a steam input and an oxygen rich gas output, where the oxygen rich gas output connects to the source gas infeed of the air separation unit.
Absstract of: US2025171911A1
The present application relates to a hydrogen production system, and a thermal management method and apparatus therefor. The hydrogen production system includes: at least two electrolytic cells; and a post-treatment device, the at least two electrolytic cells sharing the post-treatment device, and the post-treatment device including first electrolyte inflow branch pipes and second electrolyte inflow branch pipes, wherein the first electrolyte inflow branch pipes share a single cooling apparatus and are used for guiding a cold electrolyte into a corresponding electrolytic cell, and the second electrolyte inflow branch pipes are bypass branch pipes of the cooling apparatus and are used for guiding a hot electrolyte into a corresponding electrolytic cell. Compared with the prior art, embodiments of the present invention implement accurate control on the temperature of each electrolytic cell and improve system efficiency.
Absstract of: US2025171920A1
An electrolyzer system comprises one or more electrolyzer cells each comprising a first half cell with a first electrode and a second half cell with a second electrode and a controller to control a current applied through the one or more electrolyzer cells, wherein the controller is configured to dynamically set the current density within a current density range of from about 150 mA/cm2 to about 3000 mA/cm2, and wherein the controller is configured to set the current density to a first value when a first condition is met and to a second value when a second condition is met.
Absstract of: US2025171910A1
This invention discloses a method, device, and system for the direct electrolysis of seawater without desalination for hydrogen production. By immersing the direct electrolysis device for hydrogen production from seawater without desalination directly into seawater, driven by the pressure difference at the interface between seawater and the self-driven electrolyte, seawater continuously enters the device through the solution mass transfer layer. The self-driven electrolyte induces the water to enter the electrolyte solution, while the hydrophobic action of the solution mass transfer layer effectively blocks non-water impurities in the solution. During electrolysis, the water in the self-driven electrolyte is consumed to produce hydrogen and oxygen, inducing the regeneration of the electrolyte, maintaining the pressure difference at the interface, and achieving a self-circulating excitation drive without additional energy consumption.
Absstract of: US2025171921A1
The present invention relates to a system and method for producing hydrogen gas. The system comprises at least one gas transport vessel which is arranged to transport at least hydrogen up through water by buoyancy, a heat transfer unit connected to an electrolysis unit and arranged to transfer at least a portion of the waste heat from the electrolysis unit to the hydrogen gas that is to be transported by the gas transport vessel.
Absstract of: US2025171918A1
A separator for alkaline electrolysis (1) comprising a porous support (10), a first porous layer (20b) provided on one side of the porous support and a second porous layer (30b) provided on the other side of the porous support, wherein the first and the second porous layer are partially impregnated into the porous support and each have an overlay thickness d1 and d2 respectively, said overlay thickness being defined as the part of each porous layer which is not impregnated into the porous support, characterized in that a) d1 is smaller than the overlay thickness of the second porous layer (d2), and b) d1 is at least 20 μm.
Absstract of: US2025171919A1
A membrane electrode assembly for a water electrolysis cell includes a polymer electrolyte membrane having a first main surface and a second main surface, a first electrode catalytic layer on the first main surface of the polymer electrolyte membrane, a second electrode catalytic layer on the second main surface of the polymer electrolyte membrane, an annular outer peripheral film disposed to surround an outer peripheral surface of the polymer electrolyte membrane, and a first adhesive film having a substrate layer and an adhesive agent layer. The first main surface has a first annular non-covered section not covered with the first electrode catalytic layer along an outer periphery, and the adhesive agent layer of the first adhesive film is adhered to the first annular non-covered section of the polymer electrolyte membrane and to a main surface of the outer peripheral film at the same side as the first main surface.
Absstract of: US2025171917A1
Disclosed herein are a defect-rich molybdenum disulfide (MoS2) monolayer, its production method and uses thereof. The defect-rich MoS2 monolayer is characterized in having a vacancy density up to 3.35×1014/cm2, and is produced by vapor deposition on a substrate in the presence of potassium chloride (KCl). The defect-rich MoS2 monolayer could serve as an electrocatalyst in hydrogen evolution reaction (HER) to convert proton into hydrogen. Also disclosed herein is a MoS2-based microelectroactalysis cell, which is a three-electrode system, comprising a working electrode, a counter electrode, a reference electrode and an electrolyte; in which the working electrode, the counter electrode or both independently comprises the vacancy-rich MoS2 monolayer coated thereon.
Absstract of: EP4560052A1
A catalyst and anode for hydrogen production by electrolysis as well as a preparation method, activation method and use thereof are provided. In one embodiment, the anode for hydrogen production by electrolysis includes a catalyst which is nickel iron barium hydrotalcite with a nano hexagonal sheet structure and a thickness of 100-200 nm. The catalyst can be prepared by a one-step solvothermal reaction method. In the present disclosure, alkaline-earth metal ions are evenly doped in the nickel iron barium hydrotalcite and are in atomic level dispersion, so that the anode for hydrogen production by electrolysis based on the catalyst, when being applied to a process for hydrogen production by electrolysis of an aqueous solution containing chlorine ions, not only can maintain good catalytic performance, but also has greatly improved chlorine ion corrosion resistance, leading to significant improvement of working stability and service life.
Absstract of: AU2022470695A1
A water electrolysis system including a container; a plurality of microcells located inside the container; the microcells are centered around a central axis of the container; a first bracket located on a first side of the microcells; a second bracket located on a second side of the microcells; a plurality of magnets mounted on the first and the second brackets, the magnets are placed in parallel to the microcells; a liquid inside the container. The first and the second brackets are adapted to be connected to a motor. The first and the second brackets rotate during the electrolysis process. The magnets on the first bracket produce a first magnetic field and the magnets on the second bracket produce a second magnetic field; and the first and the second magnetic fields have opposite polarity.
Absstract of: WO2024068362A1
Wind turbine, comprising a rotor, a generator (6) driven by the rotor for producing energy, and an energy conversion device (7) comprising at least one energy conversion module (10) operatable both in an electrolyzer mode to produce hydrogen by electrolyzing water using energy provided by the generator (6) in a first operational mode of the wind turbine (1) and in a fuel cell mode to produce energy by reacting hydrogen and oxygen in a second operational mode of the wind turbine (1), wherein the energy conversion module (10) is switchable between the electrolyzer mode and the fuel cell mode.
Absstract of: WO2024068185A2
The invention relates to an electrolyser for splitting water into hydrogen (H2) and oxygen (O2) by means of an electric current, said electrolyser comprising: a plurality of electrolysis cells (2) which are divided into electrolysis stacks, each electrolysis cell (2) having a proton-permeable polymer membrane (4), on both sides of which are electrodes (6, 8) to which an external voltage is applied during operation, a first water supply line (10) for supplying water to an anode chamber (12) being provided on the anode side, an oxygen product line (14) for discharging the generated oxygen (O2) from the anode chamber (12) being connected, and a hydrogen product line (16) for discharging the generated hydrogen (H2) from a cathode chamber (18) being provided on the cathode side; and a control system (22) for controlling the operation of the electrolysis stacks. In order to ensure safe operation of the electrolyser and to minimise the negative consequences of membrane damage during operation of an electrolyser, the control system (22) is designed to set a higher pressure (pa) in the anode chamber (12) than in the cathode chamber (18), the pressure (pa) in the anode chamber (12) being 2 times to 20 times higher, in particular 4 times to 7 times higher, than the pressure (pk) in the cathode chamber (18).
Absstract of: JP2025082253A
【課題】本発明は、水素ガス発生装置を提供する。【解決手段】本発明は、上方に開口を有する貯水タンクと、前記貯水タンクと連接されると共に、陽極側と陰極側を有し、前記陽極側と前記貯水タンクの内壁が第１液体収容空間を画定する隔離フィルムと、前記隔離フィルムの前記陽極側に設けられる陽極電極と、前記隔離フィルムの前記陰極側に設けられる陰極電極と、前記隔離フィルムと連接されることにより、前記隔離フィルムの前記陰極側とその内壁が水素ガス収容空間を画定する水素ガスガイド装置とを有し、前記水素ガスガイド装置には、水素ガスを排出するための第１ガス排出孔が設けられ、前記隔離フィルムは、前記貯水タンクと直接に流通可能に連接される、水素ガス発生装置を提供する。本発明に係る水素ガス発生装置は、水素ガスを発生するために用いられ、簡単の構造及び小さい体積を有する。【選択図】図１
Nº publicación: KR20250075513A 28/05/2025
Applicant:
BLOOM ENERGY CORP [US]
\uBE14\uB8F8 \uC5D0\uB108\uC9C0 \uCF54\uD37C\uB808\uC774\uC158
Absstract of: 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.
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