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基于地热梯级利用的离网光伏制氢热管理系统

Resumen de: CN121700423A

本申请提供了一种基于地热梯级利用的离网光伏制氢热管理系统，涉及碱性电解水制氢技术领域。该基于地热梯级利用的离网光伏制氢热管理系统包括电解槽、换热器、第一气液分离器、第二气液分离器、储热罐、碱液循环泵和换热介质循环泵，电解槽的氢气出口与第一气液分离器相连通，电解槽的氧气出口与第二气液分离器相连通，第一气液分离器和第二气液分离器的液相出口均与碱液循环泵的入口相连通，碱液循环泵的出口与换热器的碱液入口相连通，换热器的碱液出口与电解槽的入口相连通，换热器的介质出口与储热罐的介质入口相连通，该基于地热梯级利用的离网光伏制氢热管理系统能够保障碱液温度适宜，进而缩短系统启动时间。

双空位ZnCdS固溶体光催化剂及其制备方法和应用

Resumen de: CN121695891A

本发明公开了一种双空位ZnCdS固溶体光催化剂及其制备方法和应用，制备方法包括将镉源、锌源和硫源加入无水乙醇中搅拌溶解，镉源、锌源、硫源的质量比为1∶9∶3，于70℃～90℃水浴条件下反应，经抽滤、洗涤、干燥，得到粉末状ZnCdS固溶体，将NaOH加入水中并搅拌溶解，然后加入粉末状ZnCdS固溶体，再超声处理，经抽滤、洗涤、干燥，得到双空位ZnCdS固溶体光催化剂。本发明的制备方法具有产氢率高、重复稳定性好、制备简便、成本低等优点，所得双空位ZnCdS固溶体光催化剂可应用于光催化产氢领域，产氢效率高达12.69mmol·g‑1·h‑1，是纯ZnS的23.94倍，纯CdS的11.64倍。

一种多孔离子溶剂化膜及其制备方法和用途

Resumen de: CN121700456A

本发明提供了一种多孔离子溶剂化膜及其制备方法和用途，该离子溶剂化膜的制备方法包括：将聚芳撑氧吲哚、支化聚芳撑氧吲哚、侧链型聚芳撑氧吲哚中的一种、或所述聚芳撑氧吲哚、所述支化聚芳撑氧吲哚、所述侧链型聚芳撑氧吲哚中的至少两种溶解于第一有机溶剂中，得到成膜液；将所述成膜液通过相转换的方法进行成膜，得到离子溶剂化膜。该类膜有效解决了目前离子溶剂化膜所存在的运行寿命低，电化学性能较差的问题，在碱性电解水应用方面表现出极大的前景。

一种矿井水电解纯化处理并同步电解制氢的装置及方法

Resumen de: CN121700463A

本发明公开了一种矿井水电解纯化处理并同步电解制氢的装置及方法，包括水平串联设置的四级阳极电解絮凝池，每一级阳极电解絮凝池内均对称安装有两块板状阳极，每一级阳极电解絮凝池两侧均对称设置有阴极电解水制氢反应池；每一级阳极电解絮凝池与所对应的阴极电解水制氢反应池之间均设置有隔膜；所述阴极电解水制氢反应池内设置有盘状微通道，盘状微通道与隔膜之间安装有板状阴极。本发明采用四级阳极电解絮凝池，通过多级连续电解及电絮凝反应，逐步深入去除矿井水中的污染物，相比传统单级处理方式，净化效果显著提升，能更有效地降低矿井水中悬浮物、重金属离子等杂质含量，使处理后的水质更优。

一种多孔纳米层叠结构制氢电极材料的制备方法

Resumen de: CN121700441A

本发明提供一种多孔纳米层叠结构制氢电极材料的制备方法，包括以下步骤：步骤1、先将金属基体依次清洗并干燥，以备用；步骤2、采用溅射法将镍、硅沉积在步骤1清洗后的底层金属基体上，在其上形成镍‑硅掺杂表层；步骤3、将步骤2掺杂表层后的金属基体置于酸洗液中，进行酸洗去除表层中的硅，从而在底层金属基体上形成中间层多孔镍层；步骤4、将步骤3得到的具有多孔镍层的金属基体置于前驱体溶液中，在所述中间层多孔镍层上原位生长表层纳米催化剂层，从而制备多孔纳米层叠结构制氢电极材料。该层叠结构的电极材料为多种催化元素互相协同作用，活性位点增多，活化势垒降低，制氢反应速率加快，制氢所需能耗降低。

一种用于水电解制氢的多级离子膜耦合系统及方法

Resumen de: CN121700428A

本发明属于水电解制氢技术领域，涉及一种用于水电解制氢的多级离子膜耦合系统及方法。包括原料水处理单元、多级离子膜电解槽、氢侧分离器和梯度补水罐；原料水处理单元包括依次连接的反渗透装置和电渗析装置；电渗析装置和多级离子膜电解槽的第一水入口连接；多级离子膜电解槽内自下而上依次设置有阳极层、复合离子交换膜和阴极层；多级离子膜电解槽的阴极层上设置有氢气出口；多级离子膜电解槽的阳极层上设置有氧气出口；氢气出口和氢侧分离器的气液混合入口连接；氢侧分离器的液体出口和多级离子膜电解槽的第二水入口连接；梯度补水罐和氢侧分离器的液体入口连接。本发明实现了能耗降低、氢气纯度提升和运行稳定性增强的效果。

一种金属基活性材料及其制备方法和应用

Resumen de: CN119020815A

The invention provides an electrode and a preparation method and application thereof, and belongs to the technical field of functional materials. The electrode comprises a substrate, a nickel transition layer wrapping the surface of the substrate and a porous active layer wrapping the surface of the nickel transition layer, the porous active layer is made of nickel-based alloy or cobalt-based alloy, and alloy elements in the nickel-based alloy and the cobalt-based alloy comprise zinc. The electrode provided by the invention has the characteristics of high activity, high stability and high binding force when being used for producing hydrogen by electrolyzing water.

PRODUCTION AND USE OF AQUA-AMMONIA FOR STORAGE OF ENERGY OR HYDROGEN

Resumen de: AU2024341133A1

Provided herein are systems and methods for utilizing aqua-ammonia as an energy or hydrogen storage and transport medium. A method for delivering power, the method comprises converting enriched ammonia to electrical power and heat; and using the heat to remove water from aqua-ammonia, thereby producing the enriched ammonia.

電解槽システム

Resumen de: CN120882908A

The invention relates to an electrolysis cell system (10) comprising at least one electrolysis cell (20) comprising at least one steam inlet (41) and at least one exhaust gas outlet (38; 39), and a turbocharger (62) for compressing the exhaust gas from the electrolysis cell (20). The turbocharger (62) comprises a driving fluid inlet, a driving fluid outlet, a compressed fluid inlet, a compressed fluid outlet, a compressor (13) and a turbine (12). The turbine (12) is configured to drive the compressor (13). A driving fluid outlet of the turbocharger (62) is fluidly connected to at least one steam inlet (41) of the electrolysis cell (20). At least one exhaust gas outlet (38; 39) is fluidly connected to a compressed fluid inlet of the turbocharger (62). The system (10) may further include a steam source in fluid connection with the drive fluid inlet of the turbocharger (62) to power the turbine (12) using pressurized steam.

LOW-HYDROGEN-PERMEABILITY PROTON EXCHANGE MEMBRANE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: AU2025268573A1

The present invention relates to the technical field of the electrolysis of water, and specifically relates to a low-hydrogen-permeability proton exchange membrane, and a preparation method therefor and the use thereof. The proton exchange membrane comprises a Pt-containing additive layer and a matrix membrane, wherein the Pt-containing additive layer is composed of a Pt additive and a fluorine-containing proton exchange resin, the Pt-containing additive layer comprises an array layer and a flattening layer, the thickness ratio and the active-component ratio of the array layer to the flattening layer are respectively within the ranges of 1:(0.5-30) and 1:(1-50), and the array layer is composed of arrays arranged in order and an array layer resin coating the arrays. In the low-hydrogen-permeability proton exchange membrane provided by the present invention, by providing the Pt-containing additive layer consisting of the array layer and the flattening layer, the specific surface area of the Pt-containing additive layer is effectively increased by means of the arrays in the array layer, thereby achieving the efficient utilization of an additive; moreover, the hydrogen permeability improvement effect is further improved by controlling the thickness ratio and the active-component ratio of the array layer to the flattening layer and the parameters of the arrays.

BLOCK COPOLYMER, POLYMER ELECTROLYTE MATERIAL USING SAME, POLYMER ELECTROLYTE MOLDED ARTICLE, POLYMER ELECTROLYTE MEMBRANE, CATALYST-COATED ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE COMPOSITE BODY, SOLID POLYMER FUEL CELL, AND WATER ELECTROLYTIC HYDROGEN GENERATOR

Resumen de: US20260078218A1

A block copolymer including one or more segments containing an ionic group (hereinafter referred to as an “ionic segment(s)”) and one or more segments containing no ionic group (hereinafter referred to as a “nonionic segment(s)”), wherein the ionic segment has an aromatic hydrocarbon polymer having a number-average molecular weight of more than 40,000 and 50,000 or less, and wherein the block copolymer satisfies the relation of: Mn3/(Mn1+Mn2)>1.5, wherein Mn1 represents the number-average molecular weight of the ionic segment, Mn2 represents the number-average molecular weight of the nonionic segment, and Mn3 represents the number-average molecular weight of the block copolymer. Provided is a block copolymer and a polymer electrolyte material produced using the same, wherein the block copolymer has excellent proton conductivity even under low-humidity conditions, has excellent mechanical strength and physical durability, and has an excellent in-process capability.

NITRIDE TA3N5, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2026056375A1

The present application discloses a nitride Ta3N5, and a preparation method therefor and a use thereof. The specific method comprises: subjecting a precursor I to high-temperature hydrolysis to prepare TaOx having a small size; and by utilizing the characteristics of TaOx being amorphous and having a small particle radius, performing short-duration nitridation on same to prepare Ta3N5. The formation of low-valence metal defects is effectively reduced, the charge separation efficiency is improved, and water-splitting activity is exhibited in a photocatalytic water splitting reaction. Compared with Ta3N5 prepared by a conventional method, the activity of the product of the present application is significantly improved.

A WATER ELECTROLYSER SYSTEM AND METHOD FOR PRODUCING COMPRESSED HYDROGEN

Resumen de: AU2024336964A1

The present invention relates to a water electrolyser system for production of compressed hydrogen, comprising a water electrolyser stack, a multiphase pump arranged downstream of the electrolyser stack and a hydrogen gas/liquid separator. The multiphase pump is arranged between the water electrolyser stack and the hydrogen gas/liquid separator. The present invention also relates to a method for production of compressed hydrogen in a water electrolyser system including: supplying deionized water or liquid electrolyte to a water electrolyser stack; producing hydrogen in a water electrolyser stack; compressing a mixture of produced hydrogen and entrained deionized water or liquid electrolyte in a multiphase pump; and separating the compressed mixture of produced hydrogen and entrained deionized water or liquid electrolyte in a hydrogen gas/liquid separator.

CXATALYTIC REACTOR FOR THE CONVERSION OF CARBON DIOXIDE AND HYDROGEN TO SYNGAS

Resumen de: US20260077326A1

The present invention is generally directed to a reactor for the production of low-carbon syngas from captured carbon dioxide and renewable hydrogen. The hydrogen is generated from water using an electrolyzer powered by renewable electricity or from any other method of low-carbon hydrogen production. The improved catalytic reactor is energy efficient and robust when operating at temperatures up to 1800° F. Carbon dioxide conversion efficiencies are greater than 75% with carbon monoxide selectivity of greater than 98%. The catalytic reactor is constructed of materials that are physically and chemically robust up to 1800° F. As a result, these materials are not reactive with the mixture of hydrogen and carbon dioxide or the carbon monoxide and steam products. The reactor materials do not have catalytic activity or modify the physical and chemical composition of the conversion catalyst. Electrical resistive heating elements are integrated into the catalytic bed of the reactor so that the internal temperature decreases by no more than 100° F. from the entrance at any point within the reactor. The catalytic process exhibits a reduction in performance of less than 0.5% per 1000 operational hours.

APPARATUS FOR PRODUCING HYDROGEN FROM WATER BY MEANS OF ELECTRICAL CURRENT, AND METHOD FOR OPERATING SAME

Resumen de: WO2026057209A1

The invention relates to an apparatus (10) for producing hydrogen from water by means of electrical current, the apparatus comprising: a plurality of electrolysis devices (11), each electrolysis device (11) having at least one water supply connection (13), at least one water discharge connection (14), and at least one hydrogen discharge connection (15), each electrolysis device (11) being connected, via its at least one water supply connection (13), to a water supply line (16), via its at least one water discharge connection (14) to a discharge line (17) for water and oxygen, and via its at least one hydrogen discharge connection (15) to a discharge line (18) for hydrogen; a housing or frame (19) in which the electrolysis devices (11) are arranged; an inert gas generation device (20) which is designed to generate inert gas in situ within the apparatus (10), wherein each electrolysis device (11) and/or the discharge line (18) for hydrogen and/or a device (22) arranged in the hydrogen discharge line (18) for processing the hydrogen and/or the discharge line (17) for water and oxygen and/or a device (23) arranged in the discharge line (17) for water and oxygen for removing oxygen from the discharged water and/or the housing or frame (19) can be flushed with inert gas generated by the inert gas generation device (20).

METHOD, CELL AND ELECTRODE FOR HYDROGEN PRODUCTION

Resumen de: WO2026059452A1

The present invention relates to a cell, an electrode and a method for producing hydrogen. The cell comprises a first and second electrode, wherein the first electrode is constituted by a cathode constituted by a Ni-SGPA material deposited on a substrate and the second electrode is constituted by an anode and a reference electrode, an electrolyte comprising H2SO4, and an electric power supply for applying a pulsed voltage.

ELECTROLYZER SYSTEM AND METHOD OF OPERATING SAME IN STANDBY MODE

Resumen de: US20260078513A1

A method of operating an electrolyzer system includes operating the electrolyzer system in a steady state mode by providing steam, heat and electric power to at least one stack of electrolyzer cells to electrolyze the steam and generate a hydrogen containing product stream that is provided to a hydrogen processor; and operating the electrolyzer system in a hot isolated standby mode by stopping the provision of the steam to the at least one stack of electrolyzer cells, stopping the provision of the hydrogen containing product stream to the hydrogen processor, recycling the hydrogen containing product stream through the at least one stack of electrolyzer cells while providing the heat to the at least one stack of electrolyzer cells, and not providing external hydrogen from outside the electrolyzer system to the at least one stack of electrolyzer cells.

PHOTOELECTRODE

Resumen de: WO2026057149A1

The invention relates to the field of photocatalytic hydrogen generation using sunlight and water. It addresses the technical problem of efficiently splitting water into hydrogen and oxygen using a specially designed photoelectrode. The photoelectrode comprises a semiconductive photo-harvester containing metal silicide, an oxidation cocatalyst with magnesium tin oxide, and a reduction cocatalyst of cobalt, nickel, and manganese alloys. The manufacturing method includes preparing a silicon-based photosensitive material, applying protective and anti-reflective coatings, and bonding the cocatalysts using techniques like sputtering. The photoelectrode is used in a transparent container filled with water and exposed to sunlight to generate hydrogen and oxygen, which can be collected and stored for energy applications, such as fuel cells. This invention aims to provide a renewable and environmentally friendly method for hydrogen production, overcoming challenges related to material stability and water impurities.

WATER ELECTROLYSIS SYSTEM AND METHOD FOR CONTROLLING WATER ELECTROLYSIS SYSTEM

Resumen de: WO2026058474A1

This water electrolysis system is provided with: a hydrogen production device unit that comprises a water electrolysis stack unit that includes one or more water electrolysis stacks that produce oxygen and hydrogen through an electrolytic reaction; a power source that supplies direct-current power to the one or more water electrolysis stacks; a pure water supply piping system that supplies pure water; an oxygen outflow piping system that causes oxygen produced by the water electrolysis stack unit to flow out to the outside; a hydrogen outflow piping system that causes hydrogen produced by the water electrolysis stack unit to flow out to the outside; an insulation unit that electrically insulates between the hydrogen production device unit and the ground; electrically insulating first insulated piping that is disposed in part of the pure water supply piping system; electrically insulating second insulated piping that is disposed in part of the oxygen outflow piping system; and electrically insulating third insulated piping that is disposed in part of the hydrogen outflow piping system.

WATER ELECTROLYSIS SYSTEM

Resumen de: US20260078501A1

A water electrolysis system having: a membrane-electrode assembly; a first separator in contact with a hydrogen electrode of the membrane-electrode assembly; a hydrogen flow passage provided between the first separator and the hydrogen electrode; a second separator in contact with an oxygen electrode of the membrane-electrode assembly; an oxygen flow passage provided between the second separator and the oxygen electrode; and a cooling device that cools the hydrogen electrode such that a temperature of the hydrogen electrode becomes lower than a temperature of the oxygen electrode.

CONDUCTIVE ALL-POLYMER GAS DIFFUSION LAYERS FOR ELECTROCHEMICAL DEVICES

Resumen de: US20260078505A1

A method of forming a gas diffusion material layer (GDL) includes depositing a metallic layer over a porous polytetrafluoroethylene (PTFE) layer, oxidizing 3,4-ethylenedioxythiophene (EDOT) over the metallic layer, and forming a porous poly(3,4-ethylenedioxythiophene) (PEDOT) layer over the porous PTFE layer. The porous PEDOT layer directly contacts the porous PTFE layer. The resulting PEDOT-PTFE GDL combines electrical conductivity with hydrophobicity and gas permeability, enabling efficient electrochemical conversion processes, particularly carbon dioxide reduction reaction. The PEDOT-PTFE GDL can be used in electrochemical systems comprising an electrochemical reactor and a catalyst layer supported on the PEDOT-PTFE GDL, to provides stable, selective, and efficient CO2 reduction performance across alkaline, neutral, and acidic electrolytes. Compared with carbon-based GDLs, the PEDOT-PTFE electrodes exhibit reduced hydrogen evolution, high product selectivity, and durability under high current operation.

ELECTROLYSIS DEVICE

Resumen de: US20260078510A1

According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0≤A≤B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or/and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.

SUPER-ANAEROBIC DUAL-FUNCTION WATER ELECTROLYSIS ELECTRODE BASED ON NON-NOBLE METAL-NON-METAL MIXED CATALYST AND MANUFACTURING METHOD THEREFOR

Resumen de: WO2026059202A1

The present invention relates to a super-anaerobic dual-function water electrolysis electrode based on a non-noble metal-non-metal mixed catalyst and a manufacturing method therefor. According to the present invention, by reducing the size of gas bubbles, which are generated during a water electrolysis reaction, to be easily separated from the electrode surface and at the same time, to maximize the active surface area of a catalyst, a super-anaerobic water electrolysis electrode having excellent performance can be provided.

PROCESS AND PLANT

Resumen de: WO2026057993A1

A process for the catalytic cracking of a liquid ammonia feedstock to produce a cracked gas stream, comprising the steps of i) heating the liquid ammonia feedstock to an intermediate temperature by heat exchange with a liquid heat exchange medium to produce a cooled liquid heat exchange medium; and ii) using the cooled liquid heat exchange medium to provide cooling to one or more downstream processes.

Photocatalyst

Nº publicación: US20260077337A1 19/03/2026

Solicitante:

SEIKO EPSON CORP [JP]
SEIKO EPSON CORPORATION

Resumen de: US20260077337A1

A photocatalyst has a perovskite type crystal, the photocatalyst has, present on a surface, a stepped structure including a terrace and a step, and an occupancy ratio of a projected area of the stepped structure to a total projected area in an observation image of the surface is 20% or more. It is preferable that the terrace is formed of a {100} facet, and the step is formed of the {100} facet or a {110} facet.