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879
resultados
Última actualización
06/11/2025 [06:59:00]
Resultados 675 a 700 de 879
Resumen de: CN120664741A
本发明提供的一种基于PEM电解‑纳米陶瓷板耦合的高氧富氢水制备系统及方法，包括：多级净化与置换溶氧预处理单元，用以对原水进行多级净化，并对净化后的原水进行溶氧预处理，得到高氧液；PEM电解‑气体混合舱单元，用以对高氧液进行电解处理，得到高氧富氢水；高压纳米化单元，用以将高氧富氢水进行纳米化处理，得到均质的高氧富氢水；氮气保护灌装头，用以对生成的均质高氧富氢水进行灌装；本发明在保证高氧富氢水品质的同时优化能效，使产水兼具高溶解氧、高溶解氢、低氧化还原电位和中性pH值等优异特性，显著提升产品的稳定性和生物利用度。
Resumen de: CN120666385A
本发明公开了一种Ti‑F共掺杂赤铁矿光电极及其制备方法和应用，属于光电催化技术领域，制备方法包括以下步骤：S1、将铁盐、钛盐和氟盐溶于去离子水中，搅拌获得前驱体溶液；S2、将前驱体溶液和FTO导电玻璃放在水热反应釜中进行水热反应，得到光电极薄膜前体；S3、将光电极薄膜前体在管式炉中退火煅烧，得到Ti‑F:Fe2O3光电极。本发明采用上述的一种Ti‑F共掺杂赤铁矿光电极及其制备方法和应用，以降低表面态和形成氢键结构抑制载流子的复合并加快光生空穴的转移来提升光电催化水氧化活性，制备方法简单、操作方便、实验条件易于控制。
Resumen de: CN120662338A
本发明提供了一种基于硫化物同质异质结的光催化剂及其制备方法和应用，属于光催化剂技术领域。本发明提供的基于硫化物同质异质结的光催化剂为孪晶硫镉锰和过渡金属硫化物形成的异质结，具有优异的结构稳定性，能提供更多光生电子。故将本发明提供的催化剂用于光催化剂降解H2S制氢时，光催化剂的肖特基结可降低产氢过电位，有效分解H2S产生氢气，并同时生产高附加值的产品Na2S2O3。实施例结果显示，本发明提供的基于硫化物同质异质结的光催化剂用于降解H2S制氢时，具有优异的催化活性。
Resumen de: CN120666373A
本发明提供一种Pd‑泡沫镍析氢催化剂及其制备方法和应用，Pd‑泡沫镍析氢催化剂的制备方法包括以下步骤：使用包括氯化钠和氯化钯的混合溶液对泡沫镍进行电刻蚀‑沉积处理，得到所述Pd‑泡沫镍析氢催化剂；其中，所述电刻蚀‑沉积处理使用循环伏安法进行。本发明提供的Pd‑泡沫镍析氢催化剂的制备方法能够制备出具有低过电位、高稳定性的催化剂，该方法具有步骤短、操作简单、实操性强等优点。
Resumen de: CN120666389A
本发明公开了阴极进水月面电解水装置及阴极催化剂、催化层制备方法，涉及月面电解水制氢氧技术领域。本发明包括下端面夹板，所述下端面夹板的上方可拆式固定安装有下绝缘板，下绝缘板的上方可拆式固定安装有下单面极板，所述下单面极板的上方可拆式固定安装有多组双极板单元。本发明根据质子交换膜电解水反应原理，根据月面低重力加速度、真空环境特点，设计了阴极进水月面电解水装置、流场结构、液气扩散层结构、阴极催化剂的制备等方面，能够提供适应月面低重力环境，有效降低电解水结构的动力学极化、欧姆极化、传质极化，适合在月球表面生产高纯度氧气和氢气的技术思路，为地球生物在月球生命活动和能源需求创造基础条件。
Resumen de: CN120666359A
本发明属于光电化学分解水光阴极材料制备技术领域，具体公开了一种铜基硫系太阳能光解水制氢薄膜光阴极及其制备方法，包括镀Mo玻璃基底、铜基硫系薄膜、锌锡氧化物薄膜、TiO2层、Pt层、Ag胶体电极层，Ag胶体电极层与铜基硫系薄膜之间有间隔。与现有技术相比，本发明采用无镉的锌锡氧化物薄膜作为电子传输层，成本低廉，环境友好且无毒；通过精确调控锌锡氧化物薄膜的厚度，从而实现构建的铜基硫系化合物/ZTO异质结能带排列可呈现为理想的“尖峰状spike‑like”构型，对应导带偏移量(即ZTO的导带底能量与铜基硫系化合物的导带底能量差值)在0‑0.4eV之间，不仅能有限抑制光生载流子在界面上的积聚和复合，还能保障高效的载流子输运。
Resumen de: CN119907715A
Disclosed are a catalyst for ammonia dehydrogenation, a method for preparing the same, and a method for preparing hydrogen using the same. The disclosed catalyst for dehydrogenation of ammonia comprises a zeolite containing an intragranular cation, and an alkali metal and ruthenium which are immersed in the zeolite.
Resumen de: WO2024149889A1
Process for production of hydrogen from ammonia, including ammonia cracking wherein ammonia is decomposed into hydrogen and nitrogen, wherein the ammonia cracking is performed in a sequence of cracking steps (13, 36, 17, 20) and a finally cracked stream (21) is obtained after a last cracking step (20), wherein the last ammonia cracking step (20) is performed adiabatically and/or the finally cracked stream (21) is quenched by direct mixing with water or steam after the last cracking step.
Resumen de: AU2024269568A1
The present invention relates to a novel material comprising an organic binder consisting of a thermoplastic polymer, selected from the group consisting of polyethylene, polypropylene, polystyrene, acrylonitrile-butadiene-styrene, poly vinyl halide or poly vinylidene halide or mixtures thereof, a hydrophilic inorganic filler and a porosity agent. This material can be used for the manufacture of a film which, after treatment, will provide a membrane suitable for use as a diaphragm in an alkaline electrolyser, allowing the production of hydrogen.
Resumen de: WO2025193066A1
The present application relates to a chiral plasmonic photocatalyst, a manufacturing method therefor, and a hydrogen production method using the chiral plasmonic photocatalyst. The photocatalyst according to embodiments of the present application can induce a high hydrogen production reaction by emitting a circularly polarized laser, capable of strongly interacting with chiral plasmonic metal nanoparticles, to induce the generation of a chiral near field and aligned thermal electrons, which correspond to effects corresponding to chiral plasmonic characteristics.
Resumen de: WO2025192600A1
This cell unit (2) comprises: a base material (10) that defines a first surface (13) and a second surface (14) that face each other back to back; a hole (15) that penetrates the base material (10) from the first surface (13) to the second surface (14); a film (21) that is disposed in the hole (15) and partitions the hole (15) into a first space (17) on the first surface (13) side and a second space (18) on the second surface (14) side; and an annular outer peripheral member (32) disposed around the outer peripheral surface (11a) of the base material (10).
Resumen de: WO2025192959A1
Disclosed is a method for preparing a layered metal phosphide hybrid catalyst. The method for preparing a layered metal phosphide hybrid catalyst comprises: a first step for preparing a layered metal double-layer hydroxide nanosheet structure represented by chemical formula 1; and a second step for heat-treating the metal double-layer hydroxide nanosheet structure and a phosphorus (P)-containing precursor material in a reducing atmosphere to convert the layered metal double-layer hydroxide nanosheet structure into a layered metal phosphide hybrid nanosheet structure.
Resumen de: WO2025192602A1
A cell unit (2) comprises: a base material (10) that defines a first surface (11) and a second surface (12) facing each other; a hole (13) that penetrates from the first surface (11) to the second surface (12); a film (21) that is disposed in the hole (13) and partitions the hole (13) into a first space (15) on the first surface (11) side and a second space (16) on the second surface (12) side; a first flow path (40) that is formed on the base material (10) and serves for introducing a first fluid into the first space (15); a second flow path (42) that is formed on the base material (10) and serves for taking out a second fluid from the second space (16); a first gasket (50) disposed on the first surface (11) and surrounding the first space (15) and the first flow path (40); and a second gasket (51) disposed on the first surface (11) and surrounding the second flow path (42) on the outside of the first gasket (50).
Resumen de: WO2025191910A1
This water electrolysis system comprises a water electrolysis cell, a differential pressure detection unit, and a differential pressure adjustment unit. The water electrolysis cell is provided with a negative electrode, a positive electrode, and an ion exchange membrane disposed between the negative electrode and the positive electrode, and generates hydrogen and hydroxide ions from an electrolyte fed to a negative electrode chamber between the negative electrode and the ion exchange membrane, and generates oxygen from the electrolyte fed to a positive electrode chamber between the positive electrode and the ion exchange film and from the hydroxide ions that have passed through the ion exchange membrane. The differential pressure detection unit detects differential pressure between the negative electrode chamber and the positive electrode chamber. The differential pressure adjustment unit adjusts the differential pressure between the negative electrode chamber and the positive electrode chamber on the basis of the differential pressure detected by the differential pressure detection unit.
Resumen de: WO2025191865A1
An electrolytic cell (1) comprises a hydrogen electrode layer (6), an oxygen electrode layer (9), and an electrolyte layer (7) that is positioned between the hydrogen electrode layer (6) and the oxygen electrode layer (9). The hydrogen electrode layer (6) has a first layer (61), a second layer (62), and a third layer (63) that are arranged in order from the electrolyte layer (7) side. Each of the first layer (61), the second layer (62), and the third layer (63) is composed of Ni and an oxide ion-conductive ceramic material, and includes pores. The average particle size of the Ni in the second layer (62) is larger than the average particle size of the Ni in the first layer (61), and the average particle size of the Ni in the second layer (62) is smaller than the average particle size of the Ni in the third layer (63).
Resumen de: WO2025191855A1
An electrolytic cell (1) is provided with: a hydrogen electrode layer (6); an oxygen electrode layer (9); and an electrolyte layer (7) disposed between the hydrogen electrode layer (6) and the oxygen electrode layer (9). The hydrogen electrode layer (6) includes, in order from the electrolyte layer (7) side, a first layer (61), a second layer (62), and a third layer (63). Each of the first layer (61), the second layer (62), and the third layer (63) includes pores and is composed of nickel and a ceramic material having oxide-ion conductivity. The content of the ceramic material in the first layer (61) is greater than the content of the ceramic material in the second layer (62), and the content of the ceramic material in the second layer (62) is greater than the content of the ceramic material in the third layer (63).
Resumen de: WO2025191524A1
There is provided a system for consistent production of a low- or zero-emission flame comprising an electrolyser, a power assembly, a burner element, and a gas flow control system. There is also provided a device for consistent production of a low- or zero-emission flame using the disclosed systems. There is also provided a method for consistent production of a low- or zero-emission flame. There is further provided a kit for assembling, modifying or retrofitting an apparatus to permit consistent production of low- or zero-emission flame using the disclosed systems and methods.
Resumen de: WO2025191937A1
In the present invention, a third catalyst that promotes the bonding of hydrogen and oxygen is disposed on the anode side of an electrolyte membrane (51). Even when hydrogen generated on the cathode side passes through the electrolyte membrane (51) and enters the anode side, the action of the third catalyst enables said hydrogen to bond with oxygen generated on the anode side, thereby converting into water. This makes it possible to reduce the concentration of hydrogen in the gas discharged from the anode side. Particles of the third catalyst have a hollow structure with a cavity therein. Therefore, the amount of the third catalyst used can be reduced while maintaining the surface area of the particles. Additionally, because the particles of the third catalyst have an opening, the movement of water, hydrogen, and oxygen at the anode side is less likely to be inhibited. Accordingly, reductions in the reaction rate of electrolysis on the anode side can be suppressed.
Resumen de: WO2025190141A1
The present invention belongs to the technical field of water electrolysis for hydrogen production, and particularly relates to iron-nickel co-doped ammonium phosphomolybdate, a preparation method therefor, and the use thereof. The iron-nickel co-doped ammonium phosphomolybdate uses a molybdate, a phosphate, a ferric salt and a nickel salt as starting materials, and is prepared under a mild condition of 40-80°C by means of adjusting the proportion of the raw materials and the pH value of a solution, the obtained iron-nickel co-doped ammonium phosphomolybdate being used to manufacture an oxygen evolution electrode to be applied to water electrolysis for hydrogen production. Linear sweep voltammetry in a 0.5mol/L H2SO4 solution shows that the iron-nickel co-doped ammonium phosphomolybdate of the present invention exhibits an oxygen evolution overpotential of only 210 mV at 10mA/cm2, which is lower than the oxygen evolution overpotential 370mV of noble metal iridium oxide, the oxygen evolution Tafel slope in an acidic medium of the iron-nickel co-doped ammonium phosphomolybdate is smaller than the oxygen evolution Tafel slope of the noble metal IrO2, and the alternating-current impedance reaction resistance is lower than the oxygen evolution reaction resistance of the noble metal. The electrochemical characteristics enable the iron-nickel co-doped ammonium phosphomolybdate material to achieve obvious technical and cost advantages during PEM water electrolysis for hydrogen produ
Resumen de: WO2025189910A1
A water treatment method and a water treatment system, which solve the technical problem of long process and high energy consumption of hydrogen production from wastewater. The water treatment method comprises steps: pretreating wastewater to obtain an electrolyte of which the solid content, the salt content and the pH meet requirements for electrolysis; and introducing into an electrolytic cell of an electrolysis-based hydrogen production device the electrolyte to be electrolyzed, so as to decompose organic substances in the electrolyte and generate hydrogen. The water treatment system comprises a pretreatment unit used for pretreating wastewater to obtain an electrolyte of which the solid content, the salt content and the pH that meet requirements for electrolysis; and an electrolysis-based hydrogen production unit used for electrolyzing the electrolyte to decompose organic substances in the electrolyte and to generate hydrogen. The electrolysis-based hydrogen production unit comprises an electrolysis-based hydrogen production device. The electrolysis-based hydrogen production device comprises an electrolytic cell housing (11), an anode (12) and a cathode (13). The cathode (13) is made of a sintered metal porous material of which metal elements consist of Ni and V, the metal elements mainly being present as intermetallic compounds.
Resumen de: WO2025189237A1
The invention relates to a catalyst for the hydrogen evolution reaction (HER) and methods for using the catalyst in a water-splitting process. A hydrogen evolution reaction (HER) electrocatalyst, and a method and use for preparing a HER electrocatalyst are disclosed. The method comprises the step of forming a two-dimensional electron gas (2DEG) interface at a heterojunction of at least one of two or more alternating layers of a first complex oxide and a second complex oxide, wherein the or each 2DEG interface exhibits a current density, corresponding to an intrinsic hydrogen evolution reaction (HER) activity that renders the 2DEG interface(s) suitable as an HER electrocatalyst for producing hydrogen (H2) from a water-based electrolyte by water electrolysis.
Resumen de: WO2025189432A1
Disclosed in the present invention are an electric-field-assisted concentrated solar thermochemical fuel preparation system and method. The system comprises: a concentrated solar collector, which is used for focusing and collecting solar energy and providing heat energy for the system; a membrane reactor, which has a reaction chamber, wherein a thermochemical membrane is arranged in the reaction chamber, and divides the reaction chamber of the membrane reactor into a reduction chamber and an oxidation chamber; and an electric-field assistance apparatus, which comprises a pair of electrodes respectively arranged on two sides of the thermochemical membrane. By introducing an electric field as a reaction driving force, the present invention decreases the reaction temperature and reduces the heat loss, and improves the utilization efficiency and stability of solar energy and the selectivity of reaction materials, thereby realizing efficient fuel preparation.
Resumen de: WO2025190462A1
The present invention relates to an alkaline electrolysis unit for splitting water into hydrogen and oxygen, comprising a housing with at least one vertically arranged anode, at least one vertically arranged cathode and at least one vertically arranged membrane between the anode and the cathode, separating the anode and the cathode horizontally, allowing passage of OH- from the cathode to the anode and separating cavities with water around the anode and the cathode, where the membrane is allowing passage of water between the cavities below the lower edge of the membrane, while oxygen and hydrogen gasses can escape the upwards in the cavities and out of the electrolysis unit, where the housing comprises a side wall and a top part, where the lower part of the housing forms a water reservoir and where, at the bottom part of the side wall, a water inlet is provided and where the top part has outlets for hydrogen and oxygen.
Resumen de: WO2025190768A1
A method for revamp and decarbonizing an ammonia or urea plant comprising an existing primary and secondary steam reforming unit for the preparation of ammonia synthesis gas and an ammonia synthesis loop using an electrolysis unit to produce hydrogen and oxygen.
Nº publicación: WO2025191003A1 18/09/2025
Solicitante:
GREEN HYDROGEN SYSTEMS AS [DK]
GREEN HYDROGEN SYSTEMS A/S
Resumen de: WO2025191003A1
A method for control of the individual catholyte and anolyte flows through a multitude of electrolyser stacks is provided wherein: a. each electrolyser stack (2) is adapted to perform electrolysis of water, and b. all electrolyser stacks (2) are served with an electric current and that, c. all electrolyser stacks (2) are served with anolyte flow (26), and d. all electrolyser stacks (2) are served with catholyte flow (27). It is preferred that e. differential pressure signals (28.1) at each electrolyser stack (2) is provided and, f. that catholyte control signals (43) and anolyte control signals (42) to each of a catholyte stack inflow valve actuator (44) and an anolyte stack inflow valve actuator (45) are provided for the regulation of each of an anolyte stack inflow valve (56) and a catholyte stack inflow valve (57). An electrolyser system is also provided.
BOPI
Sede Electrónica
