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49
resultados
Última actualización
09/10/2025 [13:04:00]
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: 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％。
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: CN120736513A
本发明公开了一种丁香罗勒碳点的制备方法及其在抗菌药物和食品防腐中的应用。丁香罗勒碳点的制备方法包括：将丁香罗勒叶片经水蒸气蒸馏去除精油，阴凉干燥后粉碎；将粉末加醇溶剂提取，过滤、浓缩、干燥得醇提取物；将醇提取物分散于蒸馏水中，在加热台上搅拌热解；热解生成物加蒸馏水稀释，离心取上清液，滤膜过滤、透析、冷冻干燥，得到碳点。所得碳点具有碳点‑囊泡共存结构，平均粒径5.732±0.5 nm。本发明制备的丁香罗勒碳点可应用于抗菌药物特别是抑制蜡样芽孢杆菌和李斯特菌活性的药物制备，以及食品防腐领域，具有原料来源广泛、制备方法简单、成本低廉、环境友好等优点。
Resumen de: CN120736499A
本发明属于锂电池技术领域，提供了一种磷酸锰铁锂材料的制备方法、锂电池，该制备方法包括以下步骤：步骤1、将氧化石墨烯加入去离子水中，超声分散至均匀，加入氰胺溶液，继续搅拌至均匀，转入有聚四氟乙烯衬套水热反应釜中升温反应，洗涤，冷冻干燥后得到碳源；步骤2、将锂源、铁源、锰源和磷源加入去离子水中混合至均匀，进行球磨，干燥，进行预烧结，得到磷酸锰铁锂前驱体；步骤3、将碳源加入磷酸锰铁锂前驱体中混合至均匀，进行二次烧结，得到磷酸锰铁锂正极材料。本发明提供的一种磷酸锰铁锂材料的制备方法，制备工艺简单，且制备得到的磷酸铁锰锂材料具有优异的电化学性能，制备效率较高，有益于规模化生产。
Resumen de: CN120736577A
本发明公开了一种铁硫化物纳米颗粒/镍钴硫化物纳米片/多层石墨烯复合材料、制备方法及应用，在多层石墨烯表面首先生长的是一层片状镍钴硫化物，主要由NiS，Ni3S2，Co3S4物相组成。镍钴硫化物纳米片在多层石墨烯表面向上生长，形成阵列结构。随后在镍钴硫化物阵列表面制备的是铁硫化物纳米颗粒。铁硫化物纳米颗粒沉积在片状的镍钴硫化物表面及间隙的多层石墨烯表面。这种复合结构增加了活性物质与电解质的接触面积，增加了活性点位。同时，引入了异质结构，提高了催化剂的活性。
Resumen de: CN120736511A
本发明涉及生物技术领域，具体公开了一种碳纳米酶及其制备方法与神经细胞中的应用。本发明制备碳纳米酶的方法包括：（1）将单宁酸和尿素充分均匀分散在水中；所述单宁酸和尿素的质量比为（2.4‑2.6）：1；（2）在180‑200℃下进行水热反应，所述水热反应的时间为8‑10小时；（3）高速离心分离出反应产物后直接进行干燥。本发明的碳纳米酶不光具有通常碳点的抗活性氮功能，还具有类过氧化物酶的活性，进一步增强了产品整体的抗氧化性能。通过对人神经母细胞瘤细胞SK‑N‑SH给药实验发现，该碳纳米酶在低浓度给药情况下有一定的神经细胞保护作用；在高浓度给药情况下有促神经癌细胞凋亡的作用。
Resumen de: CN120732773A
本发明涉及一种负载重楼碳量子点抗菌水凝胶制备方法，包括准确称取30‑40份七叶一枝花粉末，置于高压反应釜内；排出其中的空气，然后在200‑300℃加热5‑8h；冷却后取出反应釜内固体并粉碎，加入100‑110份50％的乙醇搅拌均匀，0.22‑0.28μm滤膜过滤；收集液体冷冻干燥即为中药生物质碳量子点。该负载重楼碳量子点抗菌水凝胶制备方法，具有良好的抗菌效果，可延缓耐药菌的产生，可生物降解，环境污染小，无环保压力，对皮肤修复的效果良好，可有效促进皮肤修复，采用重楼根茎七叶一枝花制备碳量子点，其特有的皂苷碳化产物生产，醋酸预处理结合PVA冻融交联使孔隙率提升至82％，碳量子点表面羧基与PVA羟基形成氢键网络，突破抗菌和力学矛盾，可持续释放特性。
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。
Resumen de: CN120736539A
本发明公开一种普鲁士蓝复合物及制备方法与用途，制备方法为：(1)将碳源/氮源、铁盐、镍盐在乙醇中均匀分散，烘干，在惰性气氛下煅烧，得到FeNi@NCT；(2)将FeNi@NCT分散于亚铁氰化钠水溶液，调节pH，静置，用去离子水洗涤，干燥，得到普鲁士蓝复合物，所述普鲁士蓝复合物又称FeNiPBA/NCT。本发明的制备方法，简单高效，绿色，组分可调性强，工序可扩展性强，易于放大。本发明制备的高结晶度和高导电性的普鲁士蓝复合物，作为正极材料，显著提升了钠离子电池的倍率性能和循环寿命，电化学性能远超过常规改性策略制备的普鲁士蓝正极材料，克服了目前普鲁士蓝正极材料在钠离子电池中的技术缺陷。
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: 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: CN120749153A
本申请提供一种共包覆型磷酸铁锂正极材料及其制备方法、二次电池和用电设备，涉及二次电池领域。共包覆型磷酸铁锂正极材料包括磷酸铁锂基体和位于所述磷酸铁锂基体表面的包覆层，所述包覆层包含碳和二氧化硅；所述二氧化硅的重量占正极材料总重量的0.1%～5%；所述碳的重量占正极材料总重量的0.1%～6%；所述磷酸铁锂基体的粒径为0.1～20μm；所述包覆层的厚度为1‑20nm。包覆层中的碳可以提高电子电导率，包覆层中的二氧化硅可以增强结构稳定性，包覆层中的碳与二氧化硅互相配合，可以有效的提升电池的循环寿命和倍率性能。
Resumen de: WO2025204009A1
The present invention provides a carbon nanotube assembly which has excellent conductivity when used in the form of a carbon nanotube dispersion liquid, and applications thereof. The present invention provides a carbon nanotube assembly which satisfies the following conditions (1) and (2), and applications thereof. (1) The ratio of the pore volume to the BET specific surface area is 0.0100 μm to 0.0200 μm. (2) The ratio of the volume resistivity under the pressure of 20 kN to the volume resistivity under the pressure of 1 kN is 0.18 to 0.30 inclusive.
Resumen de: AU2024276198A1
Compositions and methods for measuring the concentration of chemical species in oilfield environments, water processing and treatment, natural gas processing plants and pipelines, and other applications and other applications using fluorescent nanoparticles that are easily detectable while also being inert within the microenvironment are disclosed.
Resumen de: US2025306450A1
Coated nanotubes and bundles of nanotubes are formed into membranes useful in optical assemblies in EUV photolithography systems. These optical assemblies are useful in methods for patterning materials on a semiconductor substrate. Such methods involve generating, in a UV lithography system, UV radiation. The UV radiation is passed through a coating layer of the optical assembly, e.g., a pellicle assembly. The UV radiation that has passed through the coating layer is passed through a matrix of individual nanotubes or matrix of nanotube bundles. UV radiation that passes through the matrix of individual nanotubes or matrix of nanotube bundles is reflected from a mask and received at a semiconductor substrate.
Resumen de: US2025309339A1
There is provided a solid-state electrolyte including an oxide-based solid-state electrolyte; and a dopant doped in the oxide-based solid-state electrolyte, wherein the dopant contains a graphene quantum dot (GQD).
Resumen de: US2025305144A1
Provided is a method for preparing a continuous carbon nanotube (CNT) network film, comprising: preparing CNT dispersion by placing a preset amount of CNT powder in a preset dispersion medium; obtaining an original CNT film with discrete and loosely lapped CNTs by placing the CNT dispersion on a surface of a substrate; placing the original CNT film with the substrate in a chamber of a heating furnace; setting a heating program to promote interaction between the original CNT film and the substrate, thereby causing the CNTs in the original CNT film to assemble into a whole continuous Y-type interconnected network with a long common segment under driving of the facets. The transparency, electrical conductivity, mechanical properties, and other properties of the assembled continuous CNT network film are enhanced, and whole, large-area, flexible and free-standing assembled continuous CNT network films with unlimited length and width is prepared.
Resumen de: US2025305952A1
A plasmonic substrate fabrication method is formed using sacrificial nanostructures or microstructures of removable materials printed onto a substrate, and subsequent deposition or growth of a material such as metal or graphene. After the sacrificial structures are removed, plasmonic hotspots of nanoscale or microscale dimension and geometry are obtained on the substrate, enabling various sensing and detection of analytes based on plasmonic techniques.
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: US2025304450A1
An aspect of the present disclosure relates to an adhesion-assisted separation method for a fibrous carbon nanohorn aggregate, and the adhesion-assisted separation method includes providing a dispersion containing a carbon nanohorn aggregate mixture containing a fibrous carbon nanohorn aggregate on a base material including, on a surface of the base material, an intermediate layer having a functional group that enhances adhesiveness to the fibrous carbon nanohorn aggregate, and moving at least one of the dispersion on the intermediate layer or the base material.
Resumen de: US2025304449A1
Provided is a method for preparing transparent conductive films (TCFs), including: laying at least one original carbon nanotube (CNT) film on a surface of a substrate and placing them into a growth chamber; enabling the surface of the substrate to undergo reconstruction resulted from an interaction with a gas in the growth chamber, accompanied by transport of atoms constituting facets, to form facets, which appear as a regular stepped or zigzag pattern at a mesoscopic scale on the surface of the substrate; making the facets interact with the original CNT film, to remove impurities, and to cause at least a portion of CNTs in the original CNT film to move under driving of the facets, thereby compelling adjacent CNTs or bundles to adhere closely together, resulting in reorganization of a CNT network in the original CNT film to form a whole reorganized CNT TCF.
Resumen de: US2025304845A1
A heat transfer mixture includes a base fluid, a dispersant, a stabilizing agent, aluminum oxide nanoparticles and exfoliated graphite nanoplatelets.
Resumen de: WO2025204008A1
Provided are: a carbon nanotube assembly which has excellent dispersibility in a carbon nanotube dispersion and from which a carbon nanotube dispersion having an appropriate viscosity is obtained; and an application thereof. A carbon nanotube assembly, a carbon nanotube dispersion, a conductive material, an electrode, a secondary battery, a planar assembly, a filter, an electromagnetic wave shield, and an extreme-ultraviolet pellicle, which satisfy the conditions (1) and (2). (1) The peak intensity ratio G1/D1, which is the ratio of the peak intensity G1 of the G band to the peak intensity D1 of the D band in a Raman spectrum of carbon nanotubes, is 0.70-10.0, and the ratio of the peak area ratio G2/D2, which is the ratio of the peak area G2 of the G band to the peak area D2 of the D band, to the peak intensity ratio G1/D1 is 1.20-3.00. (2) The BET specific surface area of carbon nanotubes is 100 m2/g to 300 m2/g.
Nº publicación: WO2025202718A1 02/10/2025
Solicitante:
OSTIA TECH LIMITED [GB]
OSTIA TECHNOLOGIES LIMITED
Resumen de: WO2025202718A1
A plasmonic substrate fabrication method is formed using sacrificial nanostructures (101) or microstructures of removable materials printed onto a substrate (100), and subsequent deposition or growth of a plasmonic material layer (103) such as metal or graphene. After the sacrificial structures (101) are removed, plasmonic hotspots of nanoscale or microscale dimension (W) and geometry are obtained on the substrate, enabling various sensing and detection of analytes based on plasmonic techniques.
BOPI
Sede Electrónica
