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803
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Última actualización
19/07/2025 [07:08:00]
Resultados 450 a 475 de 803
Resumen de: CN120094608A
本发明公开了一种ZnO@ZnS@CuS三元纳米复合材料，制备方法和应用。上述ZnO@ZnS@CuS三元纳米复合材料，包括ZnO，通过硫化反应在ZnO上原位生长的ZnS层，以及原位生长在ZnS层上的CuS纳米颗粒。上述ZnO@ZnS@CuS三元纳米复合材料的制备方法，包括如下步骤：(1)将ZnO超声分散在水中，待分散均匀后，往其中加入硫代乙酰胺进行反应，反应后，离心、洗涤、干燥，得到ZnO@ZnS；(2)将ZnO@ZnS、硝酸铜和硫脲混合，反应后，离心、洗涤、干燥，得到ZnO@ZnS@CuS三元纳米复合材料。该复合材料作为光催化剂在光催化分解水制氢方面进行应用时，具有高的产氢能力和良好的循环稳定性。
Resumen de: CN120098278A
本发明涉及光催化材料技术领域，尤其涉及一种锡聚七嗪酰亚胺及其制备方法与应用。所述锡聚七嗪酰亚胺的制备方法包括步骤：将氮化碳前驱体进行热聚合反应，得到聚合物氮化碳；将聚合物氮化碳在氯化盐熔盐作为熔盐模板的条件下进行热聚合反应，随后经过盐酸酸化，得到锡聚七嗪酰亚胺；其中所述氯化盐熔盐包括无水二氯化锡熔盐。通过本发明所述制备方法制备得到的锡聚七嗪酰亚胺具有高结晶性和宽光谱响应范围，大大拓宽了光催化材料的光吸收范围，有望实现高效的近红外光活性，可最大限度的利用太阳光，从而获得高的光催化分解水产氢活性。
Resumen de: CN120099569A
本发明公开了一种Ru‑CeO2/NC催化剂及制备方法和应用，属于电解水制氢领域。本发明通过软模板法、以及一步热解金属离子浸渍MOFs材料，制备得到了Ru‑CeO2/NC催化剂。该Ru‑CeO2/NC催化剂具有良好的导电性、稳定性和催化活性；电化学测试显示，本发明的Ru‑CeO2/NC催化剂在10 mA/cm²时仅需20 mV的过电势，远低于商业20wt% Pt/C催化剂的50 mV。
Resumen de: CN120099556A
本发明公开了一种p区金属掺杂的层状双金属氢氧化物电极及其制备方法与应用，所述p区金属掺杂的层状双金属氢氧化物电极包括金属基底和沉积于所述金属基底上的p区金属掺杂的层状双金属氢氧化物催化剂；所述p区金属掺杂的层状双金属氢氧化物催化剂包括p区金属和层状双金属氢氧化物；所述p区金属选自铝、镓、锡和铟中的一种或者几种。本发明通过简单、可控、温和的一步电沉积法，最短可在一分钟内完成，制备得到的p区金属掺杂的层状双金属氢氧化物电极尺寸、形状可调，作为OER阳极可满足实际应用中不同电解槽规格的需求并用于电解水制氢，能够提高整体电解水制氢的活性和稳定性，具有巨大的应用潜力。
Resumen de: CN120099578A
本发明属于催化剂技术领域，具体涉及一种在Cu MOF中内嵌棒状二氧化铈的CeO₂/CuO复合催化剂制备方法和应用。该CeO₂/CuO复合催化剂可用于水分解中析氢析氧催化反应。该制备方法在合成的过程中以N,N‑二甲基甲酰胺作为溶剂，引入了铜源、均苯三甲酸和聚乙烯吡咯烷酮K15‑19作为作为形貌调控剂和配位剂，并在合成的过程当中添加不同含量的二氧化铈纳米棒。通过适当的控制反应条件，Cu MOF原位均匀地生长并包裹在二氧化铈纳米棒周围，形成在Cu MOF中内嵌棒状二氧化铈并具有八面体形貌的材料，通过煅烧处理形成CeO₂/CuO复合催化剂。该制备方法得到形貌均一可控，具有超高分散度和良好两相接触的CeO₂/CuO复合催化剂，能够有效提高催化性能。同时，该方法具有制备简单、工艺可控、成本低廉等优点。
Resumen de: CN120099565A
本发明公开了具有亲气梯度孔阵列结构的泡沫镍析氢电极构建方法；本发明所述的具有亲气梯度孔阵列结构的泡沫镍析氢电极，其工艺在于：一、电极预处理，先将泡沫镍表面构建4×4等间距梯度孔，然后将泡沫镍电极基底依次使用无水乙醇、盐酸、去离子水超声清洗；二、疏水涂层溶液的制备：首先取适量的正己烷至于烧杯中，再按比例往里加入聚二甲基硅氧烷(PDMS)和硅橡胶固化剂，随后进行超声震荡处理直至溶液充分混合，随后往混合液里添加疏水气相纳米SiO2颗粒，再超声振荡至均匀分散；三、将分散好的疏水涂层浆料均匀喷涂于泡沫镍梯度孔内部；四、使用两电极体系电沉积亲气处理后的泡沫镍制作析氢电极。
Resumen de: CN120099557A
本发明公开了一种半胱胺修饰的电解硫化氢催化材料及其制备方法与应用，所述制备方法包括以下步骤：S1：配制半胱胺溶液，并获取待修饰纳米材料，所述待修饰纳米材料为电解硫化氢催化材料；S2：将所述待修饰纳米材料浸泡在所述半胱胺溶液中，直至将半胱胺修饰到所述待修饰纳米材料表面；S3：取出修饰后的纳米材料，干燥后获得所述半胱胺修饰的电解硫化氢催化材料。本发明能够用半胱胺修饰电解硫化氢催化材料，形成具有优良界面传质性能的界面，加快传质速度，提高电解硫化氢的催化性能。
Resumen de: CN117285004A
The invention provides a ubiquitous light-gathering catalytic hydrogen production device and method and application. The ubiquitous light-gathering catalytic hydrogen production device comprises a hydrogen production unit, an artificial light-gathering light source unit and an electric power adjusting unit, the hydrogen production unit comprises a reaction tank and is used for preparing hydrogen and oxygen through artificial photocatalytic decomposition of water; the artificial condensation light source unit comprises a reflection assembly and a plurality of light-emitting assemblies, the light-emitting assemblies are used for emitting artificial light, and the reflection assembly is used for reflecting and gathering the artificial light into the reaction tank; the electric power adjusting unit is used for providing electric energy for the artificial condensation light source unit. According to the invention, electric power is converted into artificial light of a single wave band, artificial photocatalytic hydrogen production is carried out in a condensation mode, and the device is suitable for various electric power hydrogen production energy storage with fluctuation characteristics, especially hydrogen energy storage of low-price and negative-price electric power such as renewable energy power generation electric energy, valley electricity, abandoned electricity and the like.
Resumen de: KR20250080331A
본 발명의 일실시예는 전기분해용 전극촉매의 제조 방법 및 이를 이용한 수계 내 총 유기탄소의 저감 방법에 관한 것이다.
Resumen de: KR20250080796A
본 발명은 초소수성 코팅층이 형성된 수전해용 분리막의 제조방법에 관한 것으로, 본 발명의 제조방법은 분리막의 제조 효율이 높을 뿐 아니라 제조 비용 및 궁극적으로 제품 판매 원가를 절감할 수 있으므로 산업적 효용가치가 매우 우수하다. 또한, 본 발명에 따른 초소수성 분리막은 수전해 공정에서 발생하는 수소 및 산소의 분리 효율이 높고, 수소 순도를 안정적으로 유지할 수 있으며, 수소 가스로의 산소 혼입 방지 성능이 탁월하여 폭발(화재) 위험을 원천적으로 차단할 수 있는 장점이 있다.
Resumen de: KR20250079969A
본 발명은 물분해용 비스무스 바나데이트 광전극 박막 제조방법 및 상기 전극의 몰리브덴 도핑 방법에 관한 것이다. 본 발명의 몰리브덴(Mo) 도핑된 BiVO4를 포함하는 비스무스 바나데이트 박막은 BiVO4 타겟과 MoO3 타겟을 이용하여 스퍼터링 방법으로 기판상에 동시에 증착하여 제조되며, 이렇게 몰리브덴 도핑된 비스무스 바나데이트 박막은 전기화학적 특성, 안정성 및 장기간 사용 가능성이 향상되고, 간단한 방법으로 최적의 몰리브덴 도핑 농도를 파악하여 결정 가능하다.
Resumen de: KR20250080797A
본 발명은 수소 제조를 위한 수전해용 전극 및 이의 제조방법에 관한 것으로, 본 발명에 따른 제조방법은 기존 이리듐(IrO2) 전극 제조 공정에 비하여 공정이 단순하며, 사용되는 열에너지가 낮고, 특히 열경화에 소요되는 시간을 단축할 수 있고, 코팅층 두께 조절이 용이할 뿐 아니라, 비교적 적은 설비 비용 및 제조 비용으로 수전해용 전극을 제조할 수 있으며, 공정의 단계를 수행하는데 적은 시간, 노동력, 에너지를 요하는 장점이 있다. 또한, 본 발명에 따른 제조방법으로 제조되는 수전해용 전극은 통상적으로 요구되는 전기화학적 안정성, 내화학성을 구비할 뿐 아니라, 실제 수소 제조 과정에서 보이드로 인한 결함을 방지하면서 생성되는 기포의 배출 효율 또한 높다는 장점을 갖는다.
Resumen de: KR20250081605A
암모니아 수전해용 촉매 전극에 있어, 백금 등 귀금속 기반 촉매로서 귀금속의 사용량을 최소화하면서도 기존 귀금속 촉매에 비해 우수한 성능의 암모니아 수전해 촉매 전극과 이를 효과적으로 제조할 수 있는 방법이 개시된다. 본 발명은 금속 구조체 상에 층상 이중 수산화물(Layered Double Hydroxide, LDH)이 형성된 지지체 표면에 활성 금속 촉매가 전착(electrodeposition)된 암모니아 수전해용 촉매 전극 및 이의 제조방법을 제공한다.
Resumen de: US2025179663A1
A production unit for the production of hydrogen or ammonia by electrolytic decomposition of water, with an electrolysis unit supplied with electrical energy by a photovoltaic unit and connected on the media side to a water storage tank and on the output side to a hydrogen tank, is intended to enable a particularly reliable and fluctuation-insensitive use of a regenerative energy source. For this purpose, the production unit is designed for floating operation and comprises a balloon envelope forming a buoyant body which can be filled with a buoyancy gas and which is provided with a support structure for the water storage unit, the electrolysis unit, the photovoltaic unit and the hydrogen storage unit.
Resumen de: US2025179654A1
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
Resumen de: US2025179658A1
In a method of producing metal borohydride, M(BH4)n, from metal metaborate, M(BO2)n, in which M is a metal, such as a metallic metal, an alkali metal, an alkaline earth metal, a transition metal or a chemical compound behaving as a metal, and n is a valence value of the metal, metal borohydride is formed through a reaction of metal hydride, MHn, with trimethyl borate, B(OMe)3, and metal trimethyl borate is formed through a reaction of boric acid, H3BO3, with methanol, MeOH, under removal of water, H2O. An electrochemical cell is used for the conversion of metal metaborate and water, H2O, to boric acid, in the electrochemical cell. The electrochemical cell has an anodic half-cell and a cathodic half-cell separated by a cation exchange membrane, and a solvent and water is provided to both the anodic half-cell and the cathodic half-cell. Metal metaborate is provided to the anodic half-cell, where acid ions, H+, and electrons, e−, are generated at the anode from electrolysis of water, and H reacts with metal metaborate and water. The cation exchange membrane passes metal ions, Mn+, from the anodic half-cell to the cathodic half-cell, and metal hydroxide, M(OH)n, is formed in the cathodic half-cell.
Resumen de: US2025179655A1
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
Resumen de: US2025179652A1
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
Resumen de: US2025179010A1
Provide are a urea production method and a urea production apparatus in which hydrogen and oxygen are produced by electrolysis of water in an electrolysis unit, nitrogen is separated and recovered from air in an air separation unit, ammonia is synthesized in an ammonia synthesis unit using hydrogen from the electrolysis unit and nitrogen from the air separation unit as raw materials, carbon dioxide is produced by combusting a fuel in an oxycombustion unit while using at least the oxygen from the electrolysis unit, and urea is synthesized in a urea synthesis unit by using the carbon dioxide and the ammonia as raw materials.
Resumen de: US2025179656A1
A method for controlling a hydrogen generation system includes controlling the potentials of an electrode for oxygen generation and an electrode for hydrogen generation included in an electrolyzer so that the potential change is smaller in the electrode for oxygen generation or the electrode for hydrogen generation having a larger deterioration rate than in the electrode having a smaller deterioration rate.
Resumen de: US2025179653A1
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
Resumen de: US2025179651A1
Disclosed is a method for operating an electrolysis plant for producing hydrogen and oxygen as product gases, wherein the oxygen product gas, which additionally contains hydrogen as a foreign gas, is fed from an electrolyser to a downstream gas separator, wherein when a predefined limit value for the hydrogen concentration in the oxygen product gas is exceeded, an inert gas (L) is fed to the gas separator such that the hydrogen concentration in the oxygen product gas is lowered. The invention further relates to a corresponding electrolysis plant.
Resumen de: US2025179666A1
Embodiments include a method for operating an electrolysis system. Aspects include supplying service water to a water treatment system and purifying and deionizing the service water in the water treatment system to create deionized water and ion-containing wastewater. Aspects also include supplying the deionized water from the water treatment system to an electrolyzer and supplying the ion-containing wastewater from the water treatment system to a cooling device. A waste heat generated by the electrolyzer is dissipated by the cooling device.
Resumen de: US2025179660A1
A method for controlling an organic hydride generation system includes controlling potentials in an anode electrode and a cathode electrode such that a potential change in an electrode having a higher deterioration rate among the anode electrode and the cathode electrode included in an electrolytic bath is smaller than a potential change in an electrode having a lower deterioration rate.
Nº publicación: US2025179674A1 05/06/2025
Solicitante:
SHAHEEN INNOVATIONS HOLDING LTD [AE]
SHAHEEN INNOVATIONS HOLDING LIMITED
Resumen de: US2025179674A1
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
BOPI
Sede Electrónica
