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336
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Resultados 50 a 75 de 336
Resumen de: CN122689906A
本发明公开一种V2O5‑MCNs/rGO电化学多巴胺传感器及其制备方法与应用，涉及电化学传感技术领域。本发明以介孔碳纳米球为载体，复合五氧化二钒与还原氧化石墨烯，通过界面电子转移构筑氧空位缺陷；采用硬模板碳化刻蚀、溶胶复合及水热工艺制备复合材料，经滴涂修饰构建传感界面。材料凭借传质通道、导电网络与缺陷位点协同作用，实现多巴胺高灵敏检测，线性范围0.05～43.65 μM，检测限0.02 μM，稳定性与抗干扰性优异，可用于人血清样品检测。
Resumen de: CN122696675A
本发明涉及负极材料技术领域，具体公开一种炭材料、复合材料及其制备方法、电池负极和钠离子电池，所述炭材料的孔径具有双微孔分布峰，第一微孔分布峰的峰值对应的孔径小于第二微孔分布峰的峰值对应的孔径，且第一微孔分布峰的峰值对应的孔径为0.4‑0.6nm，第二微孔分布峰的峰值对应的孔径为0.6‑0.8nm；所述炭材料的孔容积为0.4‑1 cm3/g。含有以上炭材料以及复合在内核表面的炭层的复合材料具有较高的储钠比容量和首周库伦效率。
Resumen de: CN122685071A
本发明公开了一种负极材料及其制备方法和钠离子电池，所述负极材料的制备方法包括如下步骤：（1）对有机碳源进行活化处理，活化完成后经洗涤和干燥得到第一物料；（2）对步骤（1）得到的第一物料进行炭化处理，处理后得到第二物料；（3）在步骤（2）得到的第二物料上进行异质碳层结构的生长后得到负极材料。还提供一种采用上述制备方法得到的负极材料以及包括负极材料的钠离子电池。通过将有机碳源高温活化造孔，并结合孔道修饰和异质结构生长得到负极材料，在保证比容量和首周库伦效率均衡提升的同时，可以显著提高负极材料的倍率性能。
Resumen de: CN122685055A
本发明涉及纳米材料技术领域，具体涉及一种高导电导热碳纳米管‑碳化硅纳米线及其制备方法，该方法步骤如下：在硅基片表面依次沉积金属催化剂和碳纳米管，随后在沿气体流动方向呈温度梯度递增的环境下，在碳纳米管的内部和表面沿<111>取向生长碳化硅，沉积完成后进行酸洗处理，得到碳纳米管‑碳化硅纳米线。本发明通过引入温度梯度递增的化学气相沉积，使碳化硅嵌入碳纳米管束中形成刚性骨架，迫使碳纳米管保持高度取向排列，制得在宏观状态下兼具高导电、高导热和高强度性能的碳纳米管‑碳化硅纳米线。
Resumen de: US20260259503A1
An object of the present invention is to provide a liquid chemical exhibiting excellent defect inhibitive performance even in a case of being applied to a resist process by EUV exposure. Another object thereof is to provide a method for producing a liquid chemical. The liquid chemical of the present invention includes an organic solvent, and metal-containing particles containing a metal atom, in which the number of metal nanoparticles contained in the metal-containing particles and having a particle size of 0.5 to 17 nm is 1.0×101 to 1.0×109 particles/cm3, based on the number of the particles per unit volume of the liquid chemical.
Resumen de: US20260260880A1
0000 Provided herein are rechargeable aqueous Zn∥Ni energy storage devices that exhibit improved electrochemical performance high performance and super-long life. The combination of a high-performance Zn-based anode and an efficient Ni-based cathode herein, which aqueous battery chemistry with outstanding, form an energy storage device with high energy and power densities and cycling stability.
Resumen de: US20260258002A1
0000 Novel ionizable lipids, compositions, and methods of using the novel ionizable lipids and compositions are disclosed. Lipid nanoparticle compositions include a novel ionizable lipid as well as additional lipids such as phospholipids, structural lipids, and PEG lipids. Lipid nanoparticle compositions further including biologically active agents such as mRNA or DNA are useful in the delivery of biologically active agents to mammalian cells or organs.
Resumen de: US20260257198A1
This invention describes new porous nanocomposites of oxidized nanofibrillated cellulose and natural rubber latex comprising antimicrobial metal oxides deposited on the surface and interior thereof, production processes therefor, and uses thereof in material and fluid decontamination processes.
Resumen de: US20260256943A1
Generally, a nanomaterial polymer encapsulation system useful in the production of nanocomposites comprising an inorganic nanoparticle encapsulated in a hydrophobic region of a polymer with the external hydrophilic region of the polymer ensuring water-solubility and affording a functional group which can be utilized for the production of nanocomposite conjugates.Specifically, particular embodiments can comprise nanocomposites including one or more inorganic nanoparticles including, metal and non-metal isotopes, a superparamagnetic iron oxide nanoparticle (“SPION”), and/or quantum dots encapsulated in a polystyrene-b-polyethylene glycol affording a functional group that can be activated to conjugate antibodies, modified antibodies, or antibody fragments for the capture of target moieties which in suspension can be nebulized into an inductively coupled plasma time-of-flight mass spectrometry instrument to identify and quantify diverse features of cellular systems.
Resumen de: US20260259019A1
0000 Nanostructured coating materials, methods of their production, and methods of use in a variety of applications are described. The nanostructured materials described herein include one or more 2<+> and/or 3<+> metal ion(s), optionally in a ternary phase, on a substrate.
Resumen de: WO2026182560A1
The present invention provides snowman-shaped nanoparticles comprising: a gold core-nanobridge-shell nanoparticle including a gold core and a shell surrounding the core, wherein a nanogap is formed between the core and the shell, and the core and the shell are connected by a nanobridge; and a silver nanoparticle body part formed on a portion of the surface of the gold core-nanobridge-shell nanoparticle so as to surround a portion of the gold core-nanobridge-shell nanoparticle.
Resumen de: WO2026179836A1
Biphilic dandelion-like nanostructures are fabricated by treating hydrophilic nanowires with 1H, 1H, 2H, 2H-Perfluorodecyltriethoxysilane to form nanowires with superhydrophobic surfaces. Zinc acetate dihydrate is dissolved in ethanol to form a seed solution, and the nanowires with superhydrophobic surfaces are coated with the seed solution. The coated nanowires with superhydrophobic surfaces are heated to form ZnO seeds thereon. Zinc nitrate hexahydrate is mixed with hexamethylenetetramine to form a precursor solution, and the nanowires with superhydrophobic surfaces with the ZnO seeds are immersed in the precursor solution. The precursor solution and the nanowires with superhydrophobic surfaces with the ZnO seeds are heated to form the biphilic dandelion-like nanostructures.
Resumen de: WO2026181080A1
Metal nanoparticles comprising at least one metal atom and a ligand associated with at least a portion of a surface of the metal atom, and uses thereof, are provided. The ligand is made of a first moiety (denoted as X) that is capable of associating with the surface of the metal atom; and an additional moiety (denoted as Y) which is a redox-reactive moiety and/or a second moiety that is capable of associating with the surface of the metal atoms, and optionally a linking moiety that links the first moiety and the additional moiety. The metal nanoparticles are ultra-small nanoparticles. The metal nanoparticles are usable in, for example, catalyzing redox reactions and as coatings for varying surfaces, and are capable of interacting with a myriad of substances, such as liposomes and oligonucleotides, rendering these nanoparticles usable in varying applications.
Resumen de: WO2026182528A1
A nanostructure-based pressure sensor and a method for manufacturing same, according to one embodiment of the present disclosure, are provided. In particular, the nanostructure-based pressure sensor comprises: a substrate; and a sensing unit formed on the substrate and having nanostructures arranged thereon, wherein the sensing unit may include: an insulating layer; a sensing layer formed on the insulating layer and deformed as external pressure is applied; and a doped layer formed by doping an upper portion of the sensing layer with a specific impurity.
Resumen de: WO2026183291A1
Nanosensors based on single-walled carbon nanotubes (SWCNTs) that are useful for the rapid and low-cost detection and monitoring of contamination in water by per- and polyfluoroalkyl substances (PFAS) are described.
Resumen de: EP4799979A1
0001 The present invention relates to a carbon nanotube satisfying a specific equation, and the carbon nanotube of the present invention is excellent in both productivity and electrical conductivity.
Resumen de: CN122667563A
本发明属于石墨负极材料技术领域，尤其为一种高容量石墨负极材料及其制备方法，包括以下步骤：S1、将天然鳞片石墨或针状焦骨料进行第一氧化热处理，通入压缩空气，控制流量为10～20L/min，升温速率不高于5℃/min，在450～600℃下保温2～5h，得到改性石墨；本发明通过在石墨骨料表面预氧化活化并将预氧化沥青经两段控温热处理均匀包覆碳化，形成厚度可控的无定形碳包覆层结构，使得该碳层既能有效阻隔电解液与石墨表面的持续副反应、抑制SEI膜过度生长，又能保留充足的锂离子扩散通道，从而在显著提升首次放电比容量的同时实现高首次库仑效率，解决了传统高容量石墨负极材料因表面活性位点过多导致首效偏低、不可逆容量损失大的技术难题。
Resumen de: CN122667562A
本申请提供一种利用含盐硫酸废液制备氧化石墨烯的方法，涉及氧化石墨烯制备领域。将含盐硫酸废液进行第一减压浓缩、冷却结晶‑离心分离、第二减压浓缩得到含盐浓硫酸；将鳞片石墨粉、含盐浓硫酸和硫酸钾进行混合得到混合物，将混合物进行预插层氧化得到预插层氧化混合料；将预插层氧化混合料、浓硫酸和高锰酸钾进行混合、氧化反应得到反应液；将反应液进行第一洗水稀释、脱色反应、第二洗水稀释得到第二稀释后反应液；将第二稀释后反应液和絮凝液进行混合、絮凝沉淀、固液分离、水洗。该方法解决了传统方法大量含硫酸、硫酸盐废水处置的难点，通过有价资源循环利用，使氧化石墨烯大规模工业化生产工艺形成闭环。
Resumen de: CN122667527A
本申请提供了一种锂电池正极材料前驱体及其制备方法、应用，属于电池材料领域，其中，通过提供二水磷酸铁，将二水磷酸铁进行浆化处理，得到第一浆料；向第一浆料中加入酸性溶液，直至第一浆料的pH值为2.0~3.0，得到第二浆料；对第二浆料进行研磨处理，其后，依次加入分散剂、钛源和磷源，经混合得到第三浆料；将第三浆料进行喷雾干燥及煅烧处理，得到锂电池正极材料前驱体。本申请通过先对二水磷酸铁进行研磨再包覆，有助于磷酸钛均匀包覆在磷酸铁表面，有效抑制后续制备磷酸铁锂时的颗粒融合与长大，避免大单晶颗粒的生成，显著提高了材料的电化学性能、循环性能及压实密度；同时简化了生产流程，降低了能耗和制造成本。
Resumen de: CN122667592A
本发明提供了一种用于锂硫电池隔膜功能层的高熵硼化物@石墨烯复合材料的制备方法。该方法包括：将多种金属盐与氧化石墨烯分散于去离子水中，得到均匀的金属离子/氧化石墨烯分散液；随后加入碱性硼氢化钠溶液，使多种金属离子在还原过程中与硼源反应，原位生成高熵硼化物纳米颗粒，同时将氧化石墨烯还原；反应产物经离心、洗涤、收集和干燥后，即可获得高熵硼化物@石墨烯复合材料。所得复合材料兼具强极性、丰富活性位点和良好导电性，可作为锂硫电池隔膜功能层有效吸附并催化转化多硫化锂，抑制穿梭效应，同时调节锂离子通量、缓解枝晶生长和死锂累积，从而提升锂硫电池的循环稳定性和安全性。
Resumen de: CN122667559A
本发明提供了一种单宁酸碳点，所述单宁酸碳点是通过对单宁酸进行水热碳化处理得到的纳米颗粒。本发明还提供了一种单宁酸碳点的制备方法，包括如下步骤：将单宁酸溶解于水中，经超声处理，得到前驱体溶液；将所述前驱体溶液进行水热反应，使单宁酸碳化；反应结束后，将产物进行纯化处理，得到所述单宁酸碳点。基于所述单宁酸碳点，本发明还提供一种单宁酸碳点在制备抗菌剂或食品保鲜剂中的应用，以及用于食品保鲜的方法。本发明的单宁酸碳点具有优异的抗菌活性、良好的生物安全性和显著的食品保鲜效果。
Resumen de: CN122667637A
本发明公开了一种兼具低红外发射率和高屏蔽效能的硫化钴‑碳纳米管复合薄膜的制备方法，包括如下步骤：（1）碳纳米管薄膜经KOH溶液活化处理；（2）将活化的碳纳米管薄膜置于含有钴盐、对苯二甲酸和硫代乙酰胺的溶液中；（3）通过溶剂热法在碳纳米管表面原位生长硫化钴纳米片，形成硫化钴‑碳纳米管复合薄膜。通过调节硫代乙酰胺的添加量，可在复合薄膜中构建CoS与Co9S8异质结结构。本发明制备的复合薄膜具有优异的电磁屏蔽性能，总屏蔽效能达到68.2 dB，还具有低的红外发射率，在8~14μm波段的红外发射率可低至0.329。
Resumen de: CN122677399A
本申请涉及锂离子电池负极材料领域，具体公开了一种硅碳负极材料及其制备方法。该硅碳负极材料，包括以下重量份原料：纳米硅粉25~35份、酚醛树脂40~50份、木质素磺酸钠12~18份、乙酰丙酮铁2~4份、碳酸氢铵6~10份、三聚氰胺4~6份、葡萄糖氧化酶0.5~1.5份、1‑乙烯基‑3‑甲基咪唑四氟硼酸盐0.3~0.8份、硫代乙醇酸0.2~0.5份。本申请采用硫代乙醇酸对纳米硅粉表面进行巯基修饰，葡萄糖氧化酶与β‑D‑葡萄糖在液相中发生催化氧化反应，配合1‑乙烯基‑3‑甲基咪唑四氟硼酸盐的离子传输作用，在纳米硅表面形成均匀温和的原位预锂化界面环境，提高了硅碳负极材料的首次库伦效率。
Resumen de: CN122667579A
0001 本发明公开了一种一步法合成非晶MXene中空纳米球的方法，涉及非晶MXene纳米材料技术领域，本发明所提供的合成方法具有工艺简便、绿色环保、形貌可控性强等优势，制备得到的非晶MXene中空纳米球具有丰富表面缺陷、高活性位点与优异结构稳定性，可有效突破传统二维MXene纳米片易堆叠、离子传输受限等瓶颈，在储能、催化、电磁屏蔽等领域具有良好应用前景。
Nº publicación: CN122666003A 01/09/2026
Solicitante:
河南师范大学
Resumen de: CN122666003A
本发明公开了基于离心力与热场耦合作用的金属纳米线快速制备装置及方法，将负载金属材料的导电基底固定于导电旋转组件两根导电铜棒之间，驱动电机带动导电铜棒转动以形成离心力场；在导电铜棒旋转过程中通过导电碳刷和导电铜棒向导电基底通入电流以产生焦耳热，金属材料达到熔融状态并形成金属液滴；在离心力作用下，金属液滴沿离心方向发生拉伸形变，金属液滴在拉伸过程中形成一端与导电基底相连的液态细颈结构，并在持续离心力作用下进一步延伸细化，停止加热并冷却固化形成金属纳米线。本发明制备过程简单，可在数分钟内完成金属纳米线的制备，并可通过调节转速、电流及加热时间实现金属对纳米线尺寸与形貌的调控。
BOPI
Sede Electrónica
