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54
resultados
Última actualización
07/11/2025 [07:33:00]
Resultados 25 a 50 de 54
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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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.
Nº publicación: EP4629347A1 08/10/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
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.
BOPI
Sede Electrónica
