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121
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Última actualización
26/10/2025 [07:12:00]
Resultados 50 a 75 de 121
Resumen de: CN120771908A
本发明公开了一种具有等离子共振效应的S型异质结构材料的制备方法及应用，包括：将前驱体材料研磨后煅烧，收集固体粉末并在去离子水中回流纯化后收集白色粉末；将白色粉末分散在水合肼溶液中，通过溶剂热反应获得淡黄色溶液，分别使用酸性及碱性试剂反复溶解和沉淀，洗涤、干燥获得淡黄色固体产物；将淡黄色固体产物研磨均匀并置于气氛炉中煅烧，冷却后得到橙色固体粉末；将橙色固体粉末添加到含有钨源的前驱体的有机溶剂中，溶剂热反应结束后经过离心、洗涤、干燥获得具有等离子共振效应的S型异质结构材料。本发明的具有等离子共振效应的S型异质结构材料对于模拟分离去除后处理废水中的铀物种具有较高的效率且表现出较好的抗辐照稳定性。
Resumen de: US2025304448A1
One aspect of the present disclosure relates to a nanocarbon composite including (i) a plurality of carbon nanotubes including semiconducting carbon nanotubes in an amount equal to or more than 67% by mass with respect to a total amount of the plurality of carbon nanotubes, and (ii) fibrous carbon nanohorn aggregates adsorbed to the carbon nanotubes, in which the number of the fibrous carbon nanohorn aggregates is equal to or less than one-tenth of the number of the plurality of carbon nanotubes.
Resumen de: CN120774413A
本发明公开了一种单壁碳纳米管及其制备方法、及装置；所述装置包括催化剂输送单元、碳源输送单元、碳纳米管生长单元以及产物收集单元；催化剂输送单元用于以第一方向通入含环糊精@茂基金属客体超分子复合物的左侧气流，碳源输送单元用于以第二方向通入含碳源的右侧气流，第一方向气流和第二方向气流交汇最终形成指向产物收集单元的向上气流；本发明基于超分子组装实现了催化剂前体的可控释放，促进纳米级催化剂的均一形成，避免了混杂因素对催化剂形成的影响，通过解离、生长直至形成纳米级催化剂颗粒，然后与碳源气流交汇形成涡流迅速生成碳管，并且生成的碳管产物可及时排出，从而实现了碳管的连续化制备。
Resumen de: WO2024173929A2
A catalyst, catalyst precursor, and carbon nanotubes grown using die catalyst. The catalyst includes a. support comprising alumina and a cobalt species on a surface of the support, wherein cobalt is the sole active catalyst species for carbon nanotube growth. The support surface is iron-free.
Resumen de: CN120757107A
本发明涉及石墨烯材料领域，具体是一种石墨烯浓缩浆料及其制备方法和应用。本发明基于小尺寸的石墨烯分散液得以浓缩得到高固含量的石墨烯浓缩浆料。高固含量的石墨烯浓缩浆料是一种剪切增稠液体，根据剪切增稠效应，浆料中的石墨烯微片与分散剂的长分子链之间会形成一定的网络结构，这种网络结构会阻碍液体的流动，使其粘度显著增加。由于石墨烯具有特殊的片状结构及分散剂具有很长的链式结构，一旦停止搅拌，虽然外力作用消失，但这种特殊的网络结构并未被破坏，因此浆料的粘度并不会降低，从而使得浆料保持很好的稳定性。以此方法制备出的石墨烯浓缩浆料具有石墨烯含量高、分散剂含量低、石墨烯尺寸小、稳定性高和不易沉降等特点。
Resumen de: CN120757104A
本发明公开了一种微波辅助的没食子酸碳点的制备方法、碳点及其在肿瘤治疗中的应用，该方法包括以下步骤：S1、将没食子酸和精氨酸溶于超纯水中，混匀，得到混合液；S2、将混合液转移至反应釜中，在微波加热；S3、用纯水在超声条件下溶解步骤S2得到的产物，离心，上清液过滤，滤液透析，透析液冷冻干燥，得到没食子酸碳点。本发明公开了一种利用微波辅助法合成没食子酸碳点的方法，合成的碳点平均粒径小于2nm，具有毒性低、穿透能力强等优点，还能够显著抑制脑胶质瘤细胞的增殖和迁移，本发明将为开发基于碳点的新型脑胶质瘤治疗剂提供可行的新策略。
Resumen de: US2025312754A1
A membrane including a polysulfone/polyethylene terephthalate (PSf/PET) support and an active layer on an outer surface of the PSf/PET support. The active layer comprises reacted units of a diacyl chloride compound, a tetra-amine compound, and a nanocomposite including graphitic carbon nitride and polypyrrole. The membrane of the present disclosure is self-cleaning following exposure to radiation and finds application in water decontamination and de-salination.
Resumen de: US2025312751A1
A membrane including a polysulfone/polyethylene terephthalate (PSf/PET) support and an active layer on an outer surface of the PSf/PET support. The active layer comprises reacted units of a diacyl chloride compound, a tetra-amine compound, and a nanocomposite including graphitic carbon nitride and polypyrrole. The membrane of the present disclosure is self-cleaning following exposure to radiation and finds application in water decontamination and de-salination.
Resumen de: US2025313474A1
The present disclosure provides compositions and methods for dispersion of CNTs using a CNT solvent comprising an aromatic ring structure including at least one sulfonic acid functional group. Alternatively, the aromatic ring structure further includes at least a linear or branched alkyl chain. Examples of the carbon nanotube solvent includes dodecyl benzene sulfonic acid.
Resumen de: WO2025213046A1
Some aspects are generally related to electrocatalysts, for example, for use during electrocatalysis. In some embodiments, the electrocatalysts may be included in a system configured to perform electrocatalysis. For instance, a system may include an electrode that is associated with a first oligo- or polynucleotide and an electrocatalyst that is associated with a second oligo- or polynucleotide. According to some such embodiments, the first and second oligo- or polynucleotides may at least partially base pair and substantially tether the electrocatalyst to the electrode. In some cases, the electrocatalyst comprises nanoparticles comprising copper (Cu), which may be suitable to be configured in a system for the electrocatalytic reduction of carbon dioxide (CO2). Some aspects are related to electrocatalysts comprising copper nanoparticles having shapes and/or compositions that may desirably affect their electrocatalytic performance, for instance, the related faradaic efficiencies and/or product distributions obtained during electrocatalysis using the nanoparticles. Still other aspects are generally directed to related methods of making and/or using the electrocatalysts and/or systems.
Resumen de: WO2025213023A1
Some aspects are generally related to electrocatalysts, for example, for use during electrocatalysis. In some embodiments, the electrocatalysts may be included in a system configured to perform electrocatalysis. For instance, a system may include an electrode that is associated with a first oligo- or polynucleotide and an electrocatalyst that is associated with a second oligo- or polynucleotide. According to some such embodiments, the first and second oligo- or polynucleotides may at least partially base pair and substantially tether the electrocatalyst to the electrode. In some cases, the electrocatalyst comprises nanoparticles comprising copper (Cu), which may be suitable to be configured in a system for the electrocatalytic reduction of carbon dioxide (CO2). Some aspects are related to electrocatalysts comprising copper nanoparticles having shapes and/or compositions that may desirably affect their electrocatalytic performance, for instance, the related faradaic efficiencies and/or product distributions obtained during electrocatalysis using the nanoparticles. Still other aspects are generally directed to related methods of making and/or using the electrocatalysts and/or systems.
Resumen de: US2025312753A1
A membrane including a polysulfone/polyethylene terephthalate (PSf/PET) support and an active layer on an outer surface of the PSf/PET support. The active layer comprises reacted units of a diacyl chloride compound, a tetra-amine compound, and a nanocomposite including graphitic carbon nitride and polypyrrole. The membrane of the present disclosure is self-cleaning following exposure to radiation and finds application in water decontamination and de-salination.
Resumen de: US2024026126A1
The present application is directed to novel discrete carbon nanotubes with a surface modification that disperses well in elastomers and crosslinks elastomers to the surface of the discrete carbon nanotubes, or in the vicinity of the discrete carbon nanotube surface. Significant improvements in the performance of elastomeric formulations with a plurality of discrete carbon nanotubes with a surface modification and silica and/or carbon black result, for example, improved abrasion resistance while at the same time providing a reduced hysteresis effect on cyclic deformation. These improved properties are highly desired for fuel efficient and longer wear life tire formulations.
Resumen de: CN119855784A
The present invention relates to a carbon nanotube dispersion comprising carbon nanotubes, a dispersant and a dispersion medium, in which the dispersant comprises a first dispersant and a second dispersant in a weight ratio of 100: 10 to 100: 90, the first dispersant being a dispersant containing N atoms, the second dispersant being a dispersant containing N atoms, and the dispersion medium being a dispersant containing N atoms. The second dispersant is a compound containing a sulfonic acid group, a hydroxyl group, and an aromatic ring in a molecular structure, and a weight ratio of the carbon nanotubes to the dispersant is 100: 50 to 100: 500, thereby having a low viscosity and a small change in viscosity over time.
Resumen de: AU2023467478A1
A method for preparing a modified carbon nanotube, a modified carbon nanotube, a negative electrode slurry, and a battery. The method comprises: carboxylating a carbon nanotube; placing the carboxylated carbon nanotube in a first mixed acid solution to obtain a first inner-wall carboxylated carbon nanotube; placing the first inner-wall carboxylated carbon nanotube in a second mixed acid solution to obtain a second inner-wall carboxylated carbon nanotube; and mixing the second inner-wall carboxylated carbon nanotube and polyethylene glycol to obtain a modified carbon nanotube.
Resumen de: US2025316697A1
Example embodiments include low-resistance positive electrodes, and rechargeable lithium batteries including the same. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector. The positive electrode active material layer includes a positive electrode active material in a concentration of about 95.5 wt % to about 99 wt %, a binder in a concentration of about 0.5 wt % to about 1.5 wt %, and a conductive material in a concentration of about 0.5 wt % to about 3 wt %. The conductive material includes nano-carbon particles and carbon nano-tubes. A weight ratio of the carbon nano-tubes to the nano-carbon particles is in a range of about 1.5 to about 3.5.
Resumen de: US2025316707A1
The invention discloses a carbon-based composite material and its preparation method and application. The carbon-based composite material comprises the substrate, carbon film and structural carbon, and the carbon film or structural carbon contains alkali metal element or alkaline earth metal element. The alkali metal element or alkaline earth metal element is used as the catalyst to make the carbon source deposit the carbon film on the substrate surface and the structural carbon on the carbon film, and the substrate, carbon film and structural carbon are bonded together forming an integrated body without use of binder. The carbon film and structural carbon modify the substrate to generate the carbon-based composite material with a excellent property, and the property comprises one or more of any property of material. A use of the carbon-based composite material is any kind material in any technical field.
Resumen de: US2025312752A1
A membrane including a polysulfone/polyethylene terephthalate (PSf/PET) support and an active layer on an outer surface of the PSf/PET support. The active layer comprises reacted units of a diacyl chloride compound, a tetra-amine compound, and a nanocomposite including graphitic carbon nitride and polypyrrole. The membrane of the present disclosure is self-cleaning following exposure to radiation and finds application in water decontamination and de-salination.
Resumen de: EP4629347A1
Example embodiments include low-resistance positive electrodes, and rechargeable lithium batteries including the same. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector. The positive electrode active material layer includes a positive electrode active material in a concentration of about 95.5 wt% to about 99 wt%, a binder in a concentration of about 0.5 wt% to about 1.5 wt%, and a conductive material in a concentration of about 0.5 wt% to about 3 wt%. The conductive material includes nano-carbon particles and carbon nano-tubes. A weight ratio of the carbon nano-tubes to the nano-carbon particles is in a range of about 1.5 to about 3.5.
Resumen de: CN120749147A
本申请公开了一种复合石墨材料、复合石墨材料的制备方法、锂离子电池及电子装置，复合石墨材料包括碳点，碳点的表面具有三种形态氮，三种形态氮分别为吡啶氮、吡咯氮和石墨氮，基于三种形态氮的总质量，吡啶氮的质量占比为60％至80％。本申请的复合石墨材料包括高质量占比的吡啶氮，其中，吡啶氮中未参与共轭体系的孤对电子通过引入局部电子缺陷可以形成更多活性位点，增强了对锂离子吸附，提高了复合石墨材料的克容量，此外，吡啶氮形成的高活性区域有利于促进锂离子的吸附或脱附，降低了反应活化能和界面阻抗，从而改善了锂离子电池的充放电容量和动力学性能(充放电倍率)。
Resumen de: CN120266223A
Composite materials based on carbon nanostructures and methods of making and using the same are described. The carbon nanostructure-based composite material may be a single-layer or multi-layer composite material. Such composites may be used for radiation shielding, such as those experienced by spacecrafts and space satellites.
Resumen de: CN120736580A
本发明公开了一种生长方向可控的NiCo‑LDH纳米片/多层石墨烯复合材料及制备方法，在DMF和水的混合溶液中，加入膨胀石墨进行超声处理获得多层石墨烯分散液；加入镍钴比为6:4的NiCl2和CoCl2，及EDTA‑2Na，磁力搅拌均匀；随后加入氨水进行不同温度的预处理15分钟；放入一定温度的水浴锅中，磁力搅拌反应5小时；取出后经离心清洗后得到有不同生长方向的NiCo‑LDH纳米片/多层石墨烯复合材料。采用本发明技术方案，实现生长方向不同的NiCo‑LDH纳米片/多层石墨烯复合材料，具有不同的电化学性能，在超级电容器、锂离子电池、钠离子电池和催化剂等领域得到不同的应用。
Resumen de: CN120736485A
本发明涉及电池材料制备技术领域，且公开了一种基于红磷的磷碳负极材料制备方法，包括以下步骤：步骤一、选用高纯度黄磷（纯度≥99.9%）和多孔纳米碳（比表面积≥800m²/g，孔径分布集中在2‑50nm）作为原料，根据目标负极材料的性能要求。本发明通过选用高纯度黄磷（纯度≥99.9%）和多孔纳米碳（比表面积≥800m²/g，孔径分布集中在2‑50nm）作为原料，确保了原料的质量稳定性，在混合过程中，采用行星式球磨机进行混合，通过控制球磨转速和时间，确保了原料的充分混合均匀；同时，使用耐高温、耐腐蚀的高压釜进行加压加温处理，使红磷溶化并渗透到多孔纳米碳的孔隙中，形成了稳定的磷碳复合结构，整个工艺流程可控且高效，为大规模生产提供了有力保障。
Resumen de: CN120749135A
本发明公开了一种MOF基锂离子电池快充负极材料、负极极片及锂离子电池的快速充电控制方法。所述负极材料包括：MOF基体：由过渡金属离子与含氮/氧杂环有机配体合成的三维多孔框架，具有分级孔结构，比表面积≥1500m2/g；导电增强相：通过原位碳化或化学气相沉积嵌入MOF基体孔道或表面的碳基材料，形成三维互联导电网络；锂离子传输促进剂：通过原子层沉积在MOF基体孔道内壁负载的纳米颗粒。本发明具有如下有益效果：高倍率充放电性能：分级孔结构与三维导电网络使锂离子扩散速率提升3倍以上，支持5C快充；长循环稳定性：ALD纳米层与磺酸基修饰协同抑制MOF结构坍塌，1000次循环后容量保持率≥90％；界面优化：官能团修饰增强电解液浸润性，电荷转移阻抗降低40‑60％。
Nº publicación: CN120736512A 03/10/2025
Solicitante:
珠海科技学院
Resumen de: CN120736512A
本发明公开了一种抑菌类生物质荧光碳点、制备方法及在抑制痤疮杆菌的应用，属于纳米材料和生物医用材料技术领域，本发明以抑菌类生物质为原料，利用水热法成功一步制备出生物质碳点，该碳点可以通过在去离子水中透析的方式提纯。经验证本发明所制备出的碳点可以有效抑制和杀死痤疮杆菌，还具有清除自由基的功能，此外，该碳点还具有在水中分散性好、细胞毒性低的特点，本发明使用的方法则具有成本低、提纯简便等优点。
BOPI
Sede Electrónica
