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一种超大管径碳纳米管的制备方法

Resumen de: CN120246993A

本发明涉及碳纳米管材料的制备技术领域，提供一种超大管径碳纳米管的制备方法，通过在气相白炭黑表面附着活性物质与促进剂形成催化剂前驱体，经高温退火处理后，将其作为催化剂加入流化床或CVD管式炉反应器中进行反应，反应完成后进行预氧化处理，最后经酸洗纯化得到高纯度超大管径碳纳米管。该方法通过控制碳酸铵浓度实现催化剂颗粒尺寸调控，从而实现管径从传统碳纳米管向超大管径的跨越。本发明解决了传统方法中存在的催化剂颗粒团聚、环境污染等问题，优化碳酸铵浓度方案，实现了最佳的催化剂络合条件，为超大管径碳纳米管的制备提供了高效、可控的工艺方案。

一种锡碳复合材料及其制备方法和应用

Resumen de: CN120261514A

本发明提供了一种锡碳复合材料及其制备方法和应用，属于储能电池技术领域。本发明提供的锡碳复合材料，包括含有相互连通的孔道的多孔硬碳和填充在孔道中的碳包覆锡纳米点，所述锡碳复合材料具有合适的孔道结构，配合孔道中的碳包覆锡纳米点协同提高了材料的电化学性能，以该材料作为工作电极组装的钠离子电池的负极的容量、首次库效、循环寿命、快充性能得到优化。

一种热熔态下自组装宏量制备低碳缺陷石墨烯的方法、制备的低碳缺陷石墨烯

Resumen de: CN120246998A

本发明提供了一种热熔态下自组装宏量制备低碳缺陷石墨烯的方法、制备的低碳缺陷石墨烯，将金属羟基羧酸盐加热到熔点并恒温，然后升温到碳化温度，碳化温度下恒温后，即得。与现有技术相比，本发明以金属离子的羟基羧酸盐为碳源前驱体在熔融态下自组装制备得到石墨烯；通过调变其在熔融态下恒温自组装时间，实现低碳缺陷石墨烯的宏量自组装制备。制备方法简单、绿色环保、条件可控、可规模化生产。而且，能够保证产品质量，纯度大大提升。

一种由豆清液制备碳点的方法及其碳点和应用

Resumen de: CN120246991A

本发明公开了一种由豆清液制备碳点的加工方法及其碳点和应用，属于纳米材料技术领域。所述方法包括以下步骤：将豆清液进行水热反应，结束后冷却，然后将冷却后的反应液进行离心，取上清液进行过滤，然后取滤液进行透析，之后将透析液干燥，即得豆清液碳点。本发明通过对豆清液的利用，不仅可以起到废物利用的作用，还能减少环境污染。并且本发明制得的豆清夜碳点分散性好，稳定性佳，能够穿透血脑屏障，抑制Aβ40聚集，应用范围广泛，附加值高。

单壁碳纳米管生产用电弧炉

Resumen de: CN120252378A

本发明适用于电弧炉技术领域，提供了单壁碳纳米管生产用电弧炉，包括炉体、贯穿炉体设置的石墨电极和吹扫组件、与炉体分别连通的抽吸组件和循环组件以及设置在抽吸组件和循环组件之间的收集料仓，所述石墨电极包括阳极石墨棒和阴极石墨棒，所述抽吸组件包括抽吸气泵以及与抽吸气泵连通的第一抽吸管道和第二抽吸管道，所述收集料仓底部设置有可开合的落料板。该装置解决了惰性气体吹扫造成部分单壁碳纳米管附着在电弧炉内壁形成团聚，吹扫过程中高温惰性气体不能得到利用的问题，达到了利用气流的流化作用收集单壁碳纳米管，使单壁碳纳米管在气流中均匀分散，减少团聚，同时还能对高温惰性气体进行循环利用的效果。

一种多层碳包覆的钠离子电池正极材料的制备方法及其应用

Resumen de: CN120246974A

本发明涉及钠离子电池领域，公开了一种多层碳包覆的钠离子电池正极材料的制备方法及其应用。该方法包括：将包含锰源、钠源、磷源、氟源和碳源进行两步球磨得到前驱体粉末，再经过预热、煅烧得到多层碳包覆Na2MnPO4F正极材料。本发明通过简单球磨法制备了多层碳包覆Na2MnPO4F正极材料，具有纳米级尺寸和高结构稳定性。该方法操作简便、成本低、效率高，适合大规模生产。多层碳包覆层均匀覆盖材料表面，构建高效导电网络，提升电子传输效率，优化充放电性能。碳包覆层还增加比表面积，提供更多钠离子活性位点，提高比容量。在电化学反应中，碳包覆层有效缓冲体积变化应力，减少结构坍塌，显著提升材料稳定性和电池寿命。

一种基于湿法转移制备完整性石墨烯的方法

Resumen de: CN120247004A

本发明提供一种基于湿法转移制备完整性石墨烯的方法，方法包括：S1、将金属衬底上的石墨烯表面旋涂PMMA，形成PMMA层/石墨烯薄膜/金属衬底样品；S2、用过硫酸铵溶液刻蚀金属衬底，清洗后，得到PMMA层/石墨烯薄膜样品；S3、将PMMA层/石墨烯薄膜样品与FeCl2/FeCl3混合溶液接触一段时间，清洗，然后将清洗干净的PMMA层/石墨烯薄膜样品转移到目标衬底上，并干燥，形成PMMA层/石墨烯薄膜/目标衬底样品；S4、用丙酮溶解去除PMMA层，得到完整附着在目标衬底上的石墨烯薄膜。本发明中的方法简单易行，可重复性好，能有效提高湿法转移的石墨烯完整性，能够用于大面积石墨烯薄膜的转移。

预分散液、电极组合物、电极浆料、电极及锂离子二次电池

Resumen de: WO2024205258A1

The present application relates to a pre-dispersed solution containing single-walled carbon nanotubes (SWCNTs), and an electrode composition, electrode slurry, electrode, and lithium-ion secondary battery, each comprising same, wherein the pre-dispersed solution contains 0 parts by weight (exclusive) to 1 part by weight (inclusive) of single-walled carbon nanotubes with lengths of 0 µm to 0.2 µm (both exclusive), and at least 15 parts by weight of SWCNTs with lengths of 10 µm (inclusive) to 100 µm (exclusive), relative to 100 parts by weight of the total single-walled carbon nanotubes. The pre-dispersed solution according to the described embodiments has controlled dispersibility and thus can contribute to an improvement in the phase stability of electrode compositions and/or electrode slurries as well as the stability, lifespan, and safety of electrodes and/or lithium-ion secondary batteries.

碳纳米管阵列结构及其制备方法及其应用

Resumen de: CN120243413A

本发明公开了一种碳纳米管阵列结构，其为将碳纳米管分散液置于具有图案化区域的基底上，沿设计取向方向对碳纳米管分散液施加剪切力，使碳纳米管在图案化区域中定向排列得到；其中，所述碳纳米管带有第一电荷，所述沟槽带有与第一电荷相反的第二电荷。本发明利用静电组装的方式，使带电碳纳米管和带电基底以静电组装的方式组装，同时利用剪切力引导碳纳米管在图案化区域中定向排列，实现了碳纳米管取向高度一致、间距均匀可控、可大面积组装。

一种壳寡糖碳量子点、试纸的制备方法及其在四环素类抗生素特异性检测中的应用

Resumen de: CN120248876A

本发明公开一种壳寡糖碳量子点、试纸的制备方法及其在四环素类抗生素特异性检测中的应用。以壳寡糖为原料，采用水热法制备出壳寡糖碳量子点。检测方法：将壳寡糖碳量子点充分溶解于水溶液中，向该溶液中加入待测液体。如果待测液体中含有四环素类抗生素，壳寡糖碳量子点将与溶液中的四环素类抗生素结合。使得壳寡糖碳量子点溶液颜色发生显著改变。通过判断滴入待测液体前后壳寡糖碳量子点水溶液的颜色变化，判断待测液体中是否含有四环素类抗生素。此发明在环境监测等方面具有潜在的应用价值。

Carbon Nanotube and Manufacturing Method Thereof

Resumen de: US2025214842A1

A method for manufacturing carbon nanotubes according to embodiments of the present disclosure includes injecting a carbon source, a metal catalyst, a cocatalyst and a transport gas into a reactor, and heating the reactor to manufacture carbon nanotubes. A ratio of a molar flow rate of the carbon source to a molar flow rate of the metal catalyst is 350 to 1,300.

METHOD FOR PRODUCING CARBON NANOTUBES

Resumen de: US2025214843A1

There is provided a novel method capable of producing high-purity single-walled carbon nanotubes with high efficiency, without concern for a decrease in the strength of a reaction tube. A method for producing carbon nanotubes by floating catalyst chemical vapor deposition (FC-CVD), comprising the step of producing carbon nanotubes by heating a feed for carbon nanotubes in the presence of an iron-containing catalyst and an alkali metal compound.

A CARBON NANOTUBE (CNT)/METAL NANOCOMPOSITE POWDER PRODUCTION METHOD FOR USE IN ADDITIVE MANUFACTURING AND THERMAL SPRAYING PROCESSES

Resumen de: WO2025144322A1

The invention relates to the production method of a carbon nanotube (CNT)/metal nanocomposite powder for use in additive manufacturing and thermal spraying processes. In the method of the invention, composite powders are produced that enable the combined use of CNTs and metal powders with very different densities and enable the production of nanocomposite structures by depositing CNTs on metal powders.

SYNTHESIS OF METAL SULFIDE-CARBON COMPOSITES FROM ZIF-11 AND ZIF-12 (SINGLE OR MULTI-METALLIC) STRUCTURES

Resumen de: WO2025144284A1

The invention relates to the high-efficiency synthesis of ZIF-11 or ZIF-12 or Amorphous-ZIF structures (single or multi-metal) derivatives, followed by their calcination with sulfur under inert conditions to synthesize metal sulfide in a composite nanostructure, either dispersed or embedded on a wide carbon surface, and the use of these composite nanomaterials as electrodes in Li-ion batteries, Li-S batteries, Na-ion batteries, K-ion batteries, supercapacitors, and fuel cells.

NEGATIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND SECONDARY BATTERY

Resumen de: WO2025139203A1

The present application relates to the technical field of batteries, and in particular to a negative electrode material and a preparation method therefor, and a secondary battery. The negative electrode material comprises a silicon-based active material and a matrix material; the negative electrode material contains a hydrogen element, a halogen element, a nitrogen element and a sulfur element, wherein the mass content of the hydrogen element is mH, and the mass content of the halogen element is mX, the mass content of the sulfur element is mS, the mass content of the nitrogen element is mN, and the following relations are satisfied: 0.02≤mX/mH≤5.00, 0.02≤mN/mH≤20.00, and 0.05≤mS/mH≤5.00. The mass content ratios of the hydrogen element to the nitrogen element, the sulfur element and the halogen element are each adjusted to an appropriate range, so that the volume expansion of the negative electrode material can be effectively inhibited, and the capacity, the first coulombic efficiency, the powder electrical conductivity, the cycle performance and the rate performance of the negative electrode material are all improved.

Method for Catalyst Recovery from Carbon Nanotubes and Use of Recycled Catalyst for CNT Production thereof

Resumen de: US2025214075A1

This present invention relates in general to method for recovery of catalytic elements from raw carbon nanotubes (CNT). The present invention particularly relates to a method recovery of catalytic elements using a filtrate solution containing recovered catalytic elements from a CNT purification process. The present invention also relates to use of recovered/recycled catalytic elements for CNT production.

A METHOD FOR OBTAINING MAGNETISABLE COMPOSITE CARBON NANOTUBES COMPRISING DEMIROXIDE NANOPARTICLES

Resumen de: WO2025144321A1

The invention relates to the production method of carbon nanotube (CNT)/iron oxide (Fe3O4) composite carbon nanotube obtained by combining carbon nanotubes with iron oxide (Fe3O4) nanoparticles prepared using green tea leaves. In addition, in the given processes, the bark, leaf or fruit of other plants can be used instead of green tea leaves. By means of the use of green chemistry method during the production of Fe3O4 nanoparticles, composite carbon nanotubes are produced in an environmentally friendly and economical way. In addition, by means of the combination of Fe3O4 nanoparticles with CNT, the composite carbon nanotube is given the ability to be magnetised.

A method of producing carbon materials from feedstock gases

Resumen de: GB2636810A

A method of producing carbon materials from one or more carbon containing feedstock gases is described. The method comprises melting one or more electrolytes 124 inside a reactor chamber 120, followed by adding from 0.03 wt% to 0.5 wt% catalyst of the total electrolyte mass. The catalyst is added at a dosage rate from 16.7 ppm hour-1 to 277.8 ppm hour-1. One or more feedstock gases are provided into the molten electrolyte 124 in the reactor chamber 120 with a flow rate comprising at least 4.2 standard cm3 min-1 A-1 mass equivalent of CO2 A direct current density is then applied, in the range from 100 A m-2 up to 20 000 A m-2, to one or more anodes 140 and one or more cathodes 131. The carbon materials so produced may be carbon nanotubes (CNT), nano spirals, nanospheres, nanofibers (CNF), nanoflakes multi-walled nanotubes (MWCNT) or oxidised multiwall nanotubes (OMWCNT).

CARBON NANOTUBE DISPERSION COMPOSITION, MIXTURE SLURRY, ELECTRODE FILM, AND SECONDARY BATTERY

Resumen de: EP4578828A1

A carbon nanotube dispersion composition includes carbon nanotubes (A), a dispersant (B), and a solvent (C). A particle diameter D50 at a cumulative volume of 50% according to laser diffraction particle size distribution measurement is 0.3 to 7 µm, and (1) and (2) below are satisfied.(1) The dispersant (B) is a polymer that has a weight average molecular weight of 5,000 or more and 360,000 or less and includes a carboxyl group-containing structural unit derived from at least one of (meth)acrylic acid and (meth)acrylate having a carboxyl group, and a content ratio of the carboxyl group-containing structural unit is 80 mass% or more based on a mass of the polymer.(2) When the particle diameter D50 at a cumulative volume of 50% according to laser diffraction particle size distribution measurement of the carbon nanotube dispersion composition is X µm, and a pH is Y, X and Y satisfy (Formula a) and (Formula b) below: Y≥−0.149X+4.545Y≤−0.134X+5.140.

BACKSIDE CONTACT PLACEHOLDER FORMATION WITH IMPROVED PROCESS CONTROL

Resumen de: EP4580335A1

Devices, transistor structures, systems, and techniques are described herein related to backside contacts for nanoribbon field effect transistors formed using a backside placeholder contact. The device comprises source/drain regions (1101 and 1102), nanoribbon channels (203), a gate (206), as well as back-and front-side metallizations (1301, M0-M4, BM0-BM2). The backside placeholder contact is templated from a recessed dielectric material such as a recessed carbon hardmask. The recessed dielectric material is formed and replaced with a placeholder metal in frontside processing, and the placeholder metal is revealed and replaced from the transistor backside to form the backside contact. The interface between the backside contact (1501) and the source/drain region (1101) has a concave shape, curved inwardly in the source/drain region with a flat peripheral part, as shown in the inset.

一种磁感应电场制备碳量子点及百香果果汁铜离子检测的方法

Resumen de: CN120230545A

本发明涉及食品加工检测技术领域，公开了一种磁感应电场制备碳量子点及百香果果汁铜离子检测的方法，将新鲜玉米破壁后，采取磁感应电场两步酶解酸水热法合成天然液相荧光碳量子点(CQDs)。在紫外光照射下，该荧光碳量子点发出蓝色荧光。经过傅里叶红外光谱、X‑Ray粉末衍射光谱等对CQDs的结构和组成进行检测分析；荧光碳量子点含有C‑O、O‑H等亲水性基团。本发明合成的荧光碳量子点在380nm激发波长下，于450nm处出现最强荧光发射，其荧光量子产率达到93.48％。在检测Cu2+对CQDs的猝灭效果时，在20μg/g～180μg/g范围内，CQDs对铜离子的检测限为18.8μg/mL。本发明提高百香果果汁的Cu2+的浓度检测的灵敏性、速度快，保证百香果果汁的重金属检测的可靠快速性。

カーボンナノチューブ分散液、その製造方法、これを含む電極スラリー組成物及び二次電池

Resumen de: US2025201856A1

The embodiments of the present disclosure provide a carbon nanotube dispersion, a method of preparing the same, an electrode slurry composition and secondary battery including the carbon nanotube dispersion, wherein the carbon nanotube dispersion includes carbon nanotubes, the first dispersant surrounding the surface of the carbon nanotubes, the second dispersant for introducing charges to the surface of the carbon nanotubes, and a storage stabilizer having electrostatic repulsion against the charges.

カーボンナノチューブ分散液、その製造方法、これを含む電極スラリー組成物及び二次電池

Resumen de: US2025197224A1

The present invention provides a carbon nanotube dispersion including carbon nanotubes; a first dispersant including a nonionic polymer having a weight average molecular weight of 4,000 g/mol to 30,000 g/mol; and a second dispersant including an anionic polymer having a sulfonic acid (salt) group, wherein a weight ratio of the first dispersant to the second dispersant is 5:1 to 1:5; a method of preparing the carbon nanotube dispersion; and an electrode slurry composition and secondary battery including the carbon nanotube dispersion.

高性能リチウム電池用集電体、導電性スラリー、及びその製造方法

Resumen de: WO2024229972A1

A high-performance lithium battery current collector and a preparation method therefor, and a conductive paste and a preparation method therefor, which belong to the technical field of lithium battery production. A functional coating of the current collector is of a functional layered covering structure, which is formed by means of applying a conductive paste on a surface of metal foil and drying same, and has a thickness of not greater than 800 nm. The functional coating comprises a plurality of strip-shaped modified conductive agents, which are parallel to each other in the functional coating after being cured and molded, and the axes of which are obliquely arranged to form an included angle of 15-45 degrees with respect to the surface of the metal foil in the thickness direction of the coating, wherein the modified conductive agents are interwoven with modified nano-fibers, binders and conductive agents in the coating, so as to form an oriented three-dimensional network connection structure with reinforced fixation, electrical conductivity and thermal conductivity and capable of uniform deformation and automatic reset. The functional coating can automatically adapt to and hedge the volume, and can maintain the relative stability of a connection network and the electrical connection strength during expansion and reduction processes of a charging and discharging active substance, thereby improving the comprehensive performance of a lithium battery.

Long and narrow diameter carbon nanotubes and catalysts for producing same

Nº publicación: IL320994A 01/07/2025

Solicitante:

CHASM ADVANCED MAT INC [US]
CHASM ADVANCED MATERIALS INC

Resumen de: US2025100885A1

A bundle of carbon nanotubes (CNT), comprising a plurality of CNT with lengths of at least about 7 microns, wherein the bundle has a diameter of less than about 12 nm.