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656
results.
Updated on
02/09/2024 [07:13:00]
Results 350 to 375 of 656
Absstract of: CN118390068A
一种提高海水析氧电催化剂催化性能的方法。通过向碱性海水介质中加入一定浓度的CrO42‑，再通过电化学活化使CrO42‑吸附在镍基催化剂表面并达到平衡，CrO42‑的引入有利于真正催化活性相NiOOH的形成，表面CrO42‑层通过静电排斥使氯离子远离子催化剂，实现了催化剂在碱性海水介质中析氧催化活性和长期稳定性性能的显著提升。在碱性淡水、碱性然海水中，NiFe‑LDH在含CrO42‑的体系中表现出比不含CrO42‑体系更低的η100值，特别在含2.5mol L‑1NaCl的电解液中引入CrO42‑，可将NiFe‑LDH的长期稳定性延长到不含CrO42‑体系的五倍以上。
Absstract of: CN118384899A
本发明提供了一种Mn0.5Cd0.5S/Ti3C2MXene/g‑C3N4复合材料及其制备方法和应用，所述g‑C3N4为多层片状结构，所述Ti3C2MXene和Mn0.5Cd0.5S附着于多层g‑C3N4层间和表面。本发明通过形貌调控制备二维片状g‑C3N4，扩大其比表面积，通过与Mn0.5Cd0.5S复合并加载Ti3C2MXene进一步扩大比表面积，为反应提供更多的活性位点；本发明还通过将Ti3C2MXene薄片组装在g‑C3N4纳米片和Mn0.5Cd0.5S颗粒之间，形成全固态Z型异质结，加速光生载流子的迁移与分离，实现了技术效果的进步。
Absstract of: CN118390102A
本发明属于光催化材料领域，具体公开了一种Fe2O3/FexS/Fe3S4复合光催化材料，包括基底、沉积在基底表面的Fe2O3阵列层，复合在Fe2O3阵列层表面的FexS中间层，以及复合在FexS中间层上的Fe3S4外层；其中，所述的FexS为铁硫化物，包括FeS2、FeS中的至少一种。本发明还包括所述的材料的制备和作为光催化剂的应用。本发明所述的材料具有优异的光催化活性。
Absstract of: CN117735500A
The invention discloses a dinickel phosphide catalyst, a preparation method thereof and an application of the dinickel phosphide catalyst in an electrocatalytic hydrogen evolution process. During preparation, nickel metal salt is dissolved in water to prepare a nickel metal salt aqueous solution; the preparation method comprises the following steps: heating tetrabutyl ammonium hydroxide until the tetrabutyl ammonium hydroxide is molten to obtain a tetrabutyl ammonium hydroxide melt; adding a nickel metal salt aqueous solution into the tetrabutyl ammonium hydroxide melt according to a preset proportion, and reacting under a heating condition to generate a flaky nickel-containing precursor; under the protection of a protective atmosphere, a phosphorus source and a flaky nickel-containing precursor are subjected to a phosphating reaction to generate the dinickel phosphide catalyst with a flaky structure, and the dinickel phosphide catalyst is relatively low in crystallinity, has excellent hydrogen evolution catalytic activity, is simple in preparation method and easy for expanded production, and has potential application value in the field of hydrogen production by electrolysis of water.
Absstract of: CN118390107A
本发明公开了一种Pt‑CeO2析氢电催化剂的制备方法及其在电解水中的应用，其制备步骤是：按比例配制硝酸铈与氯铂酸的混合碱性溶液，然后在水浴条件下进行反应，然后将水浴反应得到的产物置于还原气氛管式炉中热处理，自然冷却至室温，即得到Pt‑CeO2析氢电催化剂。将制备的Pt‑CeO2用作电催化分解水还原的电极材料，表现出优异的电催化析氢活性。
Absstract of: SE2100177A1
The invention relates to a method, an electrode and a system for electrochemical hydrogen production from water oxidation and proton reduction.The method for electrochemical hydrogen production from water oxidation and proton reduction is achieved by a ruthenium complex that is covalently attached onto a conducting material used as at least one of the electrodes.The electrode comprises a ruthenium complex covalently attached onto a pyridine modified conducting material such as a fluorinated carbon cloth.The system comprises two electrodes (1a,b) having a ruthenium complex covalently attached onto a conducting material, thereby being arranged to work as both an anode and a cathode and by switching the polarities the electrodes (1a,b) are arranged to regenerate by reduction.
Absstract of: CN118384881A
一种氨分解制氢催化剂、制备方法和应用及涂层工艺，属于制氢技术领域。首先是利用碱溶液制备氨分解制氢催化剂载体，为氧化硅等与稀土金属氧化物的复合物；再将活性金属盐加入其中，利用硼氢化钠的碱溶液还原得到氨分解制氢催化剂。所得到氨分解制氢催化剂可在较低温度(400℃)与高氨气空速(17400mL·gcat‑1·h‑1)下，对催化氨气分解反应表现出高活性与稳定性。进一步将氨分解制氢催化剂负载于蜂窝陶瓷表面，有效地解决了氨分解制氢催化剂在较低温下活性低与稳定性差及将其于蜂窝陶瓷表面涂覆稳定性差的问题。本发明制备工艺简单，同时使用的载体能够增大氨分解制氢催化剂与气体接触的比表面积，能有效提高催化剂性能。
Absstract of: CN118384877A
本发明公开了一种氨分解制氢修饰型整体式催化剂制备方法及其应用，其中修饰型整体式催化剂制备包含以下步骤：块体载体的氧化铝修饰、氧化铝附着钌组分、活性金属组分的保护、钛组分浸泡、水气处理与干燥、进行多次循环钛修饰及产品焙烧。催化剂用于催化氨分解制氢工艺是以固定床反应器工艺为技术路线，进行氨分解制氢的氢气生产。本发明为氨分解制氢领域提供一种新类型的催化材料，相关修饰工艺提高了氨分解制氢催化剂在高温下的催化效率稳定性，为长周期连续生产奠定基础。
Absstract of: CA3240874A1
The present invention concerns an anode for oxygen evolution in electrolytic processes comprising a nickel-based planar substrate having a first side and second side and a porous catalytic coating formed on at least one side of said substrate, wherein said porous catalytic coating exhibits a lamellar morphology made from metallic patches and void patches, said metallic patches being made from a material selected from nickel, nickel oxide, a nickel-aluminium alloy, or combinations thereof. The present invention also concerns a method for the production of such an anode using powder plasma spraying or electric wire-arc spraying.
Absstract of: AU2022406425A1
The present invention relates to a process for producing g-C
Absstract of: CN118390088A
本发明公开了一种多孔高分子膜保护的多孔N掺杂碳材料嵌套的多孔导电金属稳定电极及制备方法。该材料的结构为：(1)网状或者孔状导电基底，通过浸没，沉淀相转化法和高温碳化三个步骤嵌套具有贯穿多孔的碳材料，(2)再通过浸没沉淀相转化法包覆一层添加了导电剂的高分子多孔膜。该基底可以负载各种催化剂，以适应不同应用对不同功能的需要。本发明为一种新型稳定电极，有机多孔膜为贯穿孔道，对电极性能影响很小；双连续碳材料同时具备连续的电子传导路径和互通的离子/气体传输通道。因此这种电极具备优异的抗剥离性能和电子/离子/气体传质能力，具有高的比表面，有利于各种功能粒子的负载。该电极/催化剂载体易于工业化操作制备。
Absstract of: CN118384910A
本发明涉及催化剂技术领域，具体公开了一种NixCo1‑x/MoP@NC纳米催化剂及其制备方法和应用。该催化剂由NixCo1‑x纳米颗粒与MoP纳米粒子形成纳米异质结构，其中，0＜x≤1；纳米催化剂中Ni的含量为0.1‑18.2 wt%，Co的含量为0‑4.5 wt%，平均粒径为4.7‑6.9 nm。制备方法：将MoP@NC粉末分散在去离子水中，加入镍源前驱体和钴源前驱体或者只加入镍源前驱体，超声，加入还原剂得到。该催化剂能够应用于催化氨硼烷水解产氢中。本发明合成的NixCo1‑x/MoP@NC催化剂表现出极高的催化性能、100%的H2选择性以及较好的耐用性。
Absstract of: CN118390099A
本发明涉及海水处理技术领域，具体为钨镍阴极析氢耦合阳极铁基电絮凝系统电解海水产氢装置。本发明通过将偏钨酸铵、氯化镍和去离子水混合均匀，得到混合溶液；将预处理碳纸加入混合溶液中，发生水热反应，得到Ni‑W‑O/CP前驱体；再将Ni‑W‑O/CP前驱体在氩气气氛中退火，得到WO3‑Ni/CP；再将WO3‑Ni/CP电极置于PBS溶液中进行电化学沉积，得到HxWO3‑Ni/CP；最后以泡沫铁为阳极，HxWO3‑Ni/CP为阴极组装电解池，得到钨镍阴极析氢耦合阳极铁基电絮凝系统电解海水产氢装置，具有优异的产氢速率和显著的成本效益。
Absstract of: US2024247389A1
A separator for an electrochemical device, including: a porous carrier having two, respectively a first and a second, largest parallel sides separated by a thickness, and a hydrogel, made of a first metal oxide and an aqueous medium, present within the first of both largest sides and in at least part of the thickness.
Absstract of: CN118398833A
本发明公开一种连续流动制备异核双金属单原子催化剂的方法，该方法利用的注射泵装置中的1号注射器、2号注射器、3号注射器和4号注射器，将羧甲基壳聚糖溶于去离子水中，装入1号注射器作为股流1；将海藻酸钠溶于去离子水中，装入2号注射器作为股流2；将氯化铜溶于去离子水中，装入3号注射器作为股流3；将氯化铁溶于去离子水中，装入4号注射器作为股流4；在注射泵驱动下将四股流同时注入微反应器内，发生瞬间碰撞络合形成水凝胶；再将水凝胶进行洗涤、冷冻和冷冻干燥处理得到气凝胶；再将气凝胶进行热解、洗涤和干燥处理，获得异核双金属单原子催化剂。本发明采用微反应器可以实现异核双金属单原子催化剂的连续快速可控制备，同时具有制备时间短、环保无毒、易于规模化和连续化生产等特点，在环境治理、工业催化等领域具有广阔的发展前景。
Absstract of: CN118390104A
本发明公开了一种镍铁氧化物/钒酸铋复合光阳极及其制备方法和应用，属于光电化学分解水制氢应用领域。本发明通过电沉积得到BiVO4光阳极，再配制含有Fe和Ni源的咪唑有机物水溶液，形成双金属咪唑有机框架化合物(Ni‑Fe‑ZIF)前驱体溶液；将BiVO4光阳极浸入上述溶液中一定时间，通过静电吸附作用制备Ni‑Fe‑ZIF/BiVO4电极，放入烘箱中干燥；然后将烘干后的样品放入马弗炉中加热并保温一定时间得到镍铁氧化物/钒酸铋(FeNiOx/BiVO4)复合光电阳极。本发明的方法操作简便、原料易得、成本低、稳定性良好；制备的最佳FeNiOx/BiVO4复合光电阳极的光电流密度是纯相BiVO4光电阳极的4.4倍。
Absstract of: CA3240045A1
The invention relates to a method for sealing an electrolysis cell comprising an anode half-cell (2) and a cathode half-cell (3) formed by at least two cell elements (4, 5) and a sheet-like separator (6) separating the half-cells (2, 3) from one another, the method comprising providing the two cell elements (4, 5) and the sheet-like separator (6), interposing the separator (6) between the two cell elements (4, 5) and interposing a layer of sealing material (7, 8) between each side of the separator (6) and the two cell elements (4, 5) in a respective rim region (9, 10) of the cell elements (4, 5), and sealing the electrolysis cell (1), wherein a force (F) is applied to the cell elements (4, 5) to compress the rim regions (9, 10), wherein the sealing material (7, 8) is an electrically isolating material and during the sealing step the state of the sealing material is changed from a liquid state to a solid state to create an adhesive bond between the cell elements (4, 5) and the interposed separator (6) by means of the sealing material (7, 8), wherein the force (F) is relieved after the sealing material has solidified. The invention further relates to a sealed electrolysis cell obtainable by this method.
Absstract of: AU2023213348A1
The purpose of the present invention is to provide a negative electrode which maintains a high energy conversion efficiency for a long period of time without an increase in the overvoltage even in cases where start and stop of hydrogen generation are repeated. In order to achieve the above-described purpose, the present invention provides a negative electrode for hydrogen generation, the negative electrode having, on the surface of a conductive base material, a catalyst layer that contains at least one substance selected from among Pt, Pt oxide and Pt hydroxide and at least one substance selected from among a lanthanoid, a lanthanoid oxide and a lanthanoid hydroxide, while being characterized in that the molar ratio of the elemental Pt to the elemental lanthanoid (Pt : lanthanoid) in the catalyst layer is 95:5 to 65:35.
Absstract of: AU2024202099A1
There is provided a system for producing heat energy comprising: an electrolyzer for effecting electrolysis of water to produce an electrolysis product material including gaseous molecular hydrogen, and a furnace, fluidly coupled to the electrolyzer for receiving the gaseous molecular hydrogen of at least the electrolysis product material, and configured for combusting the received gaseous molecular hydrogen.
Absstract of: MX2022004682A
Methods comprising: evaporating a catalyst source to produce a catalyst gas; condensing the catalyst gas to produce a catalyst vapor comprising catalyst droplets suspended in a gas phase; and contacting the catalyst vapor with a hydrocarbon gas to catalyze a decomposition reaction of the hydrocarbon gas into hydrogen gas and carbon. And, systems comprising: a catalyst source evaporator that provides a first stream to a reactor; a hydrocarbon source that provides a second stream to the reactor; a cooling column coupled to the reactor via a third stream comprising hydrogen, catalyst liquid, solid carbon, optionally catalyst gas, and optionally unreacted hydrocarbon gas such that the cooling column receives the third stream from the reactor; and wherein the cooling column has effluent streams that include (a) a fourth stream that comprises hydrogen and optionally catalyst gas and (b) a fifth stream that comprises catalyst liquid.
Absstract of: US2024240337A1
Provided is a water electrolysis system that obtains hydrogen by water electrolysis with a water electrolysis cell, the water electrolysis system including a water electrolysis stack having a plurality of the water electrolysis cells, a water supply side passage that supplies water to the water electrolysis stack, a hydrogen side passage that discharges the hydrogen obtained in the water electrolysis stack from the water electrolysis stack, a plurality of voltage sensors that measures voltages for the respective water electrolysis cells or for each group of the water electrolysis cells, and a control device configured to acquire a voltage from each of the voltage sensors, determine whether the voltage is lower than a predetermined value and notify the water electrolysis cell has a failure when it is determined that the voltage is lower than a predetermined value.
Absstract of: US2024240338A1
Apparatuses for the generation of carbon dioxide and hydrogen from a water having a carbonate species are disclosed. The apparatus includes an anodic compartment having an anode disposed on a first side of the anodic compartment and a cathodic compartment having a cathode disposed on a first side of the cathodic compartment. The apparatus further includes a first cation permeable fluidic separator disposed on a second side of the anodic compartment and a second cation permeable fluidic separator disposed on a second side of the cationic compartment. A center compartment is defined between the first cation permeable fluidic separator and the second cation permeable fluidic separator. The apparatus further includes a flow control system configured to independently control flow of water through each of the anodic compartment, the cathodic compartment, and the center compartment. Methods of generating hydrogen, carbon dioxide, and oxygen from seawater using the apparatus are also disclosed.
Absstract of: AU2023218352A1
A start-up process for conditioning an electrolysis system containing ionically conductive membrane, such as a poly electrolyte multilayer coated proton exchange membranes, to reduce the break-in period is described. The conditioning involves heating the electrolysis feed, the electrolysis system, or both at a temperature above the desired operating temperature to achieve faster startup. In some cases, the voltage is controlled to avoid damage to the sample.
Absstract of: AU2022417445A1
A microbial electrolysis cell for generating hydrogen gas from wastewater has a cavity in an interior region of the microbial electrolysis cell and a cathode at least partially around or within the cavity. An anode at least partially surrounds the cathode. The anode contains a porous, electrically conductive material that can be colonised by microorganisms which generate hydrogen gas from the wastewater. The hydrogen gas that is generated collects in the cavity. A manifold allows one or more microbial electrolysis cell to be removably connected to the manifold. The manifold collects hydrogen gas from the connected microbial electrolysis cells and provides electrical connections to the microbial electrolysis cells. A system for generating hydrogen from wastewater has a wastewater treatment vessel holding a body of wastewater. A manifold has one or more microbial electrolysis cells attached to the manifold, where the anode of each connected microbial electrolysis cell is at least partially immersed in the body of wastewater.
Nº publicación: AU2022406226A1 25/07/2024
Applicant:
HUANENG CLEAN ENERGY RES INSTITUTE [CN]
SHANGHAI SHIDONGKOU NO 2 POWER PLANT HUANENG INT POWER CO LTD [CN]
HUANENG CLEAN ENERGY RESEARCH INSTITUTE,
SHANGHAI SHIDONGKOU NO. 2 POWER PLANT HUANENG INTERNATIONAL POWER CO. LTD
Absstract of: AU2022406226A1
Provided in the present application are a biomass negative carbon emission power generation system and a working method therefor. The system comprises: a biomass power generation unit, wherein a flue gas outlet of the biomass power production unit is connected to an inlet of a flue gas pretreatment unit, and an outlet of the flue gas pretreatment unit is connected to a CO
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