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一种低磁导率碳纳米管催化剂及其制备方法和低磁导率碳纳米管

Absstract of: CN121607163A

一种低磁导率碳纳米管催化剂及其制备方法和低磁导率碳纳米管，旨在克服现有技术中碳纳米管存在磁性催化剂颗粒残留，且不易去除，应用于电芯影响其性能的缺陷，该低磁导率碳纳米管催化剂包括：质量比为(2‑45):(0.5‑15)的催化活性组分和抗磁性固溶组分；抗磁性固溶组分能够改变催化活性组分的磁畴排列方式并降低其磁性；制备方法：将催化活性组分和抗磁性固溶组分的金属盐进行固溶处理，得到低磁导率碳纳米管催化剂；固溶处理使抗磁性固溶组分进入到催化活性组分中；抗磁性固溶组分的加入，改变了原催化活性组分的磁畴排列方式，得到了低磁导率的碳纳米管催化剂；制备得到低磁导率碳纳米管，相对磁导率远低于常规碳纳米管。

ALUMINIUM-GRAPHENE NANOCOMPOSITES WITH HIGH ELECTRICAL AND THERMAL CONDUCTIVITY, AND METHODS FOR OBTAINING SAME VIA MICROSTRUCTURAL CONTROL

Absstract of: WO2026044373A1

The present patent of invention relates to aluminium-graphene nanocomposites with high electrical and thermal conductivity, and methods for obtaining same via microstructural control, and more specifically to the incorporation of multilayer graphene nanoplatelets (mGNP or few-layer graphene), comprising up to 10 layers, into pure commercial aluminium or aluminium alloys, using electric furnaces. The nanocomposites obtained comprise an aluminium matrix with dispersed graphene as the reinforcing phase, in proportions ranging from 0.1 wt% to 3 wt%. In order to obtain the nanocomposites, gravity casting techniques were employed in resistive and induction furnaces, with adaptations to prevent oxidation through the use of an inert gas atmosphere. The methodology employed enables a significant increase in electrical conductivity, ranging from 45% to 95% relative to the as-received commercial material, depending on the amount of graphene added. The thermal diffusivity of the nanocomposites also increased by 15% to 50%, with a possible maximum of around 0.5 wt% to 1 wt% of graphene. Similarly, the general physical properties exhibited marked improvements, although the rate of improvement decreased for nanocomposites containing more than 2 wt% of graphene.

BIFUCTIONAL ELECTROCATALYST, ITS PROCESS OF PREPARATION AND APPLICATION IN METAL AIR BATTERIES

Absstract of: WO2026047718A1

The present invention relates to a solid-state rechargeable zinc-air battery featuring a novel bifunctional electrocatalyst, a dual-crosslinked polyacrylic acid hydrogel electrolyte, and a stannate-based additive for in situ zinc anode modification. The cathode comprises a gas diffusion layer coated with ruthenium-ruthenium oxide core-shell nanoparticles supported on nitrogen-doped graphene, providing enhanced bifunctional catalytic activity and stability. The anode consists of zinc metal modified in situ by a stannate-based additive to form a solid electrolyte interphase layer, effectively suppressing dendrite formation. The electrolyte membrane is a polyacrylic acid hydrogel, covalently and ionically cross-linked, and soaked in an aqueous solution containing potassium hydroxide, zinc acetate, and a stannate-based additive, resulting in improved mechanical strength, ionic conductivity, and battery safety. The integrated system delivers high power density, specific capacity, and robust cycling stability, offering a significant advancement in the field of solid-state zinc-air batteries.

Carbon Nanotube Hybrid Materials and Methods of Producing the Hybrid Materials

Absstract of: US20260062300A1

Carbon nanotube (CNT) hybrid materials and methods of making such materials. A carbon nanotube (CNT) hybrid powder material includes a mesh of CNTs intimately interspersed with particles of a second material. In an example the material includes a blend that itself includes particles of a metal oxide supported catalyst and particles of a second material, and a mesh of CNTs is grown on the supported catalyst in the blend. The mesh of CNTs is effective to disperse the particles of the second material.

BIPOLAR PLATE FOR FUEL CELLS AND METHOD FOR MANUFACTURING SAME

Absstract of: EP4704195A1

The invention relates to electrically conductive composite materials based on thermoplastic polymers containing carbon nanotubes, and to methods for manufacturing the same. The invention further relates to electrically conductive thin plates for use as bipolar plates in fuel cells, including, proton exchange membrane fuel cells. The present invention proposes a method for producing thin electrically conductive plates, and further proposes a thin bipolar plate with a thickness of less than 1 mm for a high-temperature fuel cell, said plate having gas transport channels on the surface thereof and containing a composite material comprised of a thermoplastic polymer and single-walled and/or double-walled carbon nanotubes, wherein the composite material contains connected regions having a carbon nanotube concentration of more than 1 wt.%, and domains having a size of less than 200 µm and a local concentration of carbon nanotubes of less than 1 wt.%.

石墨烯基前体结构

Absstract of: US20260054990A1

A method of producing a graphene-based precursor includes providing graphene flakes based on one or more predetermined criteria, at least some of the graphene flakes having lattice defects, modifying the graphene flakes by decorating at least some of the graphene flakes with non-graphene carbon structures to form modified graphene flakes, and crumpling the modified graphene flakes to form graphitic carbon mesostructures.

正极活性材料、及其制备方法、二次电池、电池模块、电池包和用电装置

Absstract of: US2025286064A1

A positive electrode active material, a secondary battery, a battery module, a battery pack, and an electric device. The positive electrode active material is used as a positive electrode active material for a secondary battery, and comprises a carbon material compounded iron-based polyanionic compound and an aluminum-containing oxide, and the iron-based polyanionic compound has the following general formula: Na4Fe3−xMxAly(PO4)2P2O7/C, wherein M comprises a transition metal element, 0≤x≤0.5, and y is greater than 0 and less than 0.2. The positive electrode active material has relatively low residual alkali amount, and the battery has excellent cycle performance and rate capability.

石墨烯基前体结构

Absstract of: US20260054991A1

A method of increasing porosity of graphene-based precursors including wetting the graphene-based precursors with water, rapidly freezing the graphene-based precursors after the wetting step to cause expansion of a water volume within the graphene-based precursors to cause defects within the graphene-based precursors, and thawing and removing the water from the graphene-based precursors.

一种富本征缺陷碳材料及其制备方法与应用

Absstract of: CN121591199A

本发明公开了一种富本征缺陷碳材料及其制备方法与应用，属于催化剂技术领域，本发明采用的富勒烯或富勒烯衍生物碳笼具有π共轭结构，故分子间存在较强的π‑π相互作用力。本发明以富勒烯或富勒烯衍生物为原料，基于分子间作用力自组装，得到宏观的晶态材料，即富勒烯基凝聚态前驱体，将所述富勒烯基凝聚态前驱体先采用氧气等离子体进行预刻蚀处理，对富勒烯基凝聚态前驱体进行表面改性，再于ZnCl2熔融盐中进行低温预刻蚀处理和高温焙烧的两段式程序升温热处理，赋予富勒烯基凝聚态前驱体五元环拓扑缺陷、边界和曲率的碳本征缺陷，得到富本征缺陷碳材料，这些本征缺陷位点赋予该碳材料良好的电催化性能。

一种原位生长于纳米纤维的碳纳米管及其制备方法和应用

Absstract of: CN121591202A

本申请是关于一种原位生长于纳米纤维的碳纳米管及其制备方法和应用，其制备方法的步骤为：将基体材料、分散助剂和过渡金属催化剂与连续相混合均匀，制得静电纺丝液；以静电纺丝液的质量为100%计，基体材料的含量为8%~15%，分散助剂的含量为0.05%~1%，过渡金属催化剂的含量为1%~10%；将静电纺丝液装填进静电纺丝设备的注射器中，进行静电纺丝，获得纳米纤维催化前驱体；将纳米纤维催化前驱体在保护气体氛围下升温至380~450℃；接着通入还原气体，将过渡金属催化剂还原；之后升温至650~750℃，然后通入碳源气体，制得原位生长于纳米纤维的碳纳米管。本申请提供的原位生长制备碳纳米管的方法高效快速、基底适应性高、与基底结合力强。

一种单壁碳纳米管的纯化方法、高纯单壁碳纳米管及其应用

Absstract of: WO2026040289A1

The present disclosure relates to the technical field of the removal of impurities from carbon nanotubes and in particular to a method for purifying a single-walled carbon nanotube, a high-purity single-walled carbon nanotube, and a use thereof. The present disclosure provides a high-purity single-walled carbon nanotube. In a test in which the high-purity single-walled carbon nanotube is digested at 200°C and a mass ratio of the high-purity single-walled carbon nanotube to the mixed acid of 1:100 for 30 min in a mixed acid which is prepared from perchloric acid, concentrated sulfuric acid and concentrated nitric acid in a volume ratio of 1:3:3, the measured mass content of metals in the high-purity single-walled carbon nanotube is less than or equal to 0.5%. The rapid oxidative weight loss temperature in a thermogravimetric differential curve obtained by testing the high-purity single-walled carbon nanotube in an air atmosphere at a heating rate of 10°C/min is 740-800°C. The high-purity single-walled carbon nanotube of the present disclosure has fewer metal impurities and carbon impurities, high conductivity, and good electrical conductivity, thereby facilitating improving the electrochemical performance of a battery prepared using the high-purity single-walled carbon nanotube.

石墨烯基前体结构

Absstract of: US20260058167A1

A method of improving catalyst accessibility of a carbon precursor includes exposing a graphene-based multi-layer precursor structure to a plurality of electrocatalyst clusters by applying voltage to accelerate the clusters towards the graphene-based multi-layer precursor structure to generate both mechanical defects in the graphene-based multi-layer precursor structure's surface and a near-uniform size population of deposited electrocatalyst at a near-uniform depth in the graphene-based multi-layer precursor structure.

用于耐用的空气阴极的封装过渡金属氧化物纳米棒

Absstract of: WO2025012300A1

It relates to a material comprising a plurality of nanorods encapsulated within open-ended hollow carbon nanostructures, wherein the plurality of nanorods is composed of either a) a transition metal oxide of the formula AzM'2 yMn1 -xO2 (A), or alternatively, b) a transition metal oxide of the formula M''3m/nM2-mO3 (B), as defined herein, wherein the transition metal oxide of the formula (A) or formula (B) is in an amount from 20 to 60% by weight with respect to the total material weight; and the volume of the nanorods encapsulated within hollow carbon nanostructures is equal to or less than 50% with respect of the total cavity volume of the hollow carbon nanostructures, in particular, wherein the hollow carbon nanostructures are tubular and their internal average diameter is at least 2 times the average thickness of the nanorods. It also relates to a process for preparing this material, to a precursor material RtM'''3-tO4 (C) as defined herein from which the material is obtained, and to the use of the material as electrocatalyst in different applications.

CARBON NANOCOILS DERIVED FROM ALMOND SKIN A MANUFACTURING METHOD AND USE OF THE SAME

Absstract of: KR20260027578A

본 발명은 아몬드 껍질을 질소 및 수소 분위기 하에서 순차적으로 열분해하는 탄소 나노코일의 제조 방법, 이에 따라 제조된 탄소 나노코일 및 이를 포함하는 도파민 검출용 센서에 관한 것으로, 상기 탄소 나노코일은 바이오매스 기반으로 친환경적이며 생체적합성이 있고, 대량 생산이 가능하면서 종래 금속 또는 금속 산화물 기반 센서보다 우수한 검출능을 나타내어 생물학적 샘플을 포함한 다양한 시료 중에 포함된 도파민의 선택도 높은 검출이 가능하다.

カーボンナノチューブ分散液及びこの製造方法

Nº publicación: JP2026507343A 02/03/2026

Applicant:

エルジー・ケム・リミテッド

Absstract of: CN120303212A

The present invention relates to a carbon nanotube dispersion containing carbon nanotubes, a first dispersant containing a nitrogen atom, a second dispersant containing a compound represented by Formula 1, and a solvent, and a method for preparing the same. The content of the compound represented by Formula 1 is as defined in the specification.