Resumen de: US20260193445A1
A product of additive manufacturing with a multimaterial silicone-based ink includes a printed three-dimensional (3D) structure including filaments in a predefined geometric arrangement. The filaments include a silicone-based matrix and a multimaterial filler. The printed 3D structure is configured to have a predefined electrical resistance characteristic, and the predefined electrical resistance characteristic is a function of the predefined geometric arrangement of the filaments.
Resumen de: US20260193798A1
0000 A method of forming a catalytic electrode that includes depositing particles of a metal-organic framework onto a conductive substrate to form a coated substrate, exposing the coated substrate to a laser having a wavelength (λ) of 5 μm to 10 μm and a power of 25 W to 35 W to form a carbonized product, and washing the carbonized product to obtain the catalytic electrode. The metal organic framework is at least one selected from the group consisting of a copper containing metal organic framework and a cobalt/nickel containing metal organic framework. The carbonized product includes a carbon-containing porous scaffold, and nanoparticles which are at least one selected from the group consisting of cobalt-nickel (Co—Ni) alloy nanoparticles and copper oxide (CuO) nanoparticles disposed on the carbon-containing porous scaffold.
Resumen de: WO2026147543A2
Recyclable carbon nanotube fibers and other structures, and more particularly to fully recyclable carbon nanotube structures from mixed-composition carbon nanotube materials. Solution-spun CNT structures can be fully and easily recycled. Continuous structures made out of different CNT composition materials can be mixed together in solution and reprocessed into a recycled fiber with the same morphology, structure, alignment, and properties of the virgin fiber obtained by mixing the raw CNTs.
Resumen de: US20260193636A1
0000 The present disclosure relates to compositions of immobilized enzymes on the surface of achromosomal and/or anucleate cells and uses thereof. In particular, the present disclosure provides genetically engineered minicells with enzymes self-assembled on their surface. The immobilized enzymes on the surface of achromosomal and/or anucleate minicells, has agricultural, industrial, and environmental applications due to their improved stability durability and, reusability. Also, provided are methods for producing and purifying enzyme-immobilized minicells.
Resumen de: EP4772869A1
A method for manufacturing oxidized MXene according to a preferred embodiment of the present disclosure may remove fluorine groups (F) on a surface of MXene and form OH functional groups through an oxidation process to effectively adsorb CO2 molecules and reversibly change electrical conductance according to gas concentration. In addition, a chemimemristor device based on the oxidized MXene (Mn+1Xn(OH)2) may simultaneously implement memristor and gas sensor functions in a single device, and maintain multiple levels of conductance depending on the concentration of adsorbed molecules, and implement, based thereon, reversible changes in conductance according to a concentration of CO2 and multi-level information processing through its characteristics of learning multi-level operations and molecular adsorption history to mimic the human sense of smell and synaptic plasticity of the brain.
Resumen de: US2025075298A1
Aspects of the present disclosure generally relate to processes for forming multimetallic alloys and carbon-supported multimetallic alloys. In an aspect, a process for forming carbon-supported PtNiCoRu nanoparticles is provided. The process includes forming a mixture comprising a platinum (Pt) metal source, a nickel (Ni) metal source, a cobalt (Co) metal source, a ruthenium (Ru) metal source, a carbon source, and a solvent. The process further includes heating the mixture at a temperature that is from about 80° C. to about 250° C. to form carbon-supported nanoparticles, the carbon-supported nanoparticles including a carbon support, and PtNiCoRu single phase alloy nanoparticles chemically bonded to the carbon support. Processes for forming carbon-supported PtNiCoRuFe nanoparticles are also provided. Processes for forming PtNiCoRu and PtNiCoRuFe alloy nanoparticles are also provided.
Resumen de: EP4772475A1
The present disclosure provides a precursor of a positive electrode active material. A particle of the precursor includes a core and a shell covering the core. Each of the core and the shell is made of nickel cobalt manganese oxide or nickel cobalt manganese hydroxide. The core is doped with a fluxing agent, and the fluxing agent is selected from one or more of an oxide, a carbonic acid compound, and a hydroxide of a first metal element, and the first metal element at least is one of Sr, Li, Mg, Ni, Co, and Zr. The shell is doped with a reaction inhibitor. The reaction inhibitor is selected from one or more of lithium compounds, an oxide, a carbonic acid compound, a hydroxide, and other compounds of a second metal element, and the second metal element at least is one of Ta, W, Al, Mn, Mo, and La. A fluxing agent is disposed in the core of the particle of the precursor, and the reaction inhibitor is disposed in the shell, so that subsequent crystallization of the precursor develops from inside to outside. The present disclosure further provides a positive electrode active material and a preparation method therefor, a positive electrode comprising the positive electrode active material, a lithium-ion battery, and a preparation method for the precursor.
Resumen de: EP4773237A1
The present application relates to the field of lithium battery technologies, and in particular, to a lithium-supplementing additive, and a method for preparing the same, a positive electrode material, a positive electrode plate, and a battery. The lithium-supplementing additive includes a lithium-containing compound, and the lithium-containing compound is selected from the group consisting of compounds represented by the following chemical formula (I): aLiFeαMnβM1-α-βO2-γXγ·(1-a)Li2FeδMnεN1-δ-εO3-ηXη, where M and N are each independently selected from a group consisting of Zr, Co, Sr, Al, Ni, W, Ti, Cu, Mg, Zn, Ca, Ba, Sc, Ga, Y, La, In, Ce, Ge, Hf, Sn, Nb, Ta, V, and Sb, and X is fluorine (F); 0.4 ≤ a ≤ 0.9, 0 < α ≤ 1, 0 ≤ β ≤ 1, 0 < (α+β) ≤ 1, 0 ≤ γ ≤ 0.1, 0 < δ ≤ 1, 0 ≤ ε ≤ 1, 0 < (δ+ε) ≤ 1, and 0 ≤ η ≤ 0.1. The lithium-supplementing additive provided in the present application can achieve stable and uniform lithium supplementation and enhance cycling stability.
Resumen de: CN122343972A
本发明提供了一种基于MBene纳米片改性的石墨烯复合气凝胶及其制备方法和应用,属于导电功能复合材料技术领域。本发明将MBene纳米片分散液、氧化石墨烯分散液和十二烷基硫酸钠溶液分散,得到混合分散液;将所述混合分散液与抗坏血酸混合进行热还原反应,得到部分还原水凝胶;将所述部分还原水凝胶依次进行冰冻和解冻,得到完全还原水凝胶;将所述完全还原水凝胶干燥,得到所述石墨烯复合气凝胶。本发明通过在石墨烯气凝胶三维多孔骨架中引入MBene纳米片,克服现有石墨烯气凝胶在微动检测传感器中存在的导电性不足、响应灵敏度有限以及循环稳定性差等问题,从而实现对微小位移及低应力刺激的高灵敏度检测。
Resumen de: WO2024253450A1
The present application relates to a method for manufacturing a densified carbon structure-based film, the method comprising: a step for providing a carbon structure-based film; and a carbon structure-based film densification step for obtaining a densified carbon structure-based film by immersing the carbon structure-based film in a polar solvent and then in an acidic aqueous solution, or obtaining a densified carbon structure-based film by immersing the carbon structure-based film in an acidic aqueous solution and then in a polar solvent.
Resumen de: CN122343969A
本发明涉及一种槐米碳点及其制备方法和应用,所述槐米碳点的制备方法为将槐米粉碎、过筛后与乙二胺、纯化水混匀,超声处理后获得混合物,将该混合物进行加热处理,反应结束后冷却至室温,再经离心、过滤、透析以及冷冻干燥后得到槐米碳点。本发明通过传统中药材槐米作为碳源,采用一步水热法工艺制备槐米碳点,具有易于合成、良好水溶性、较高生物安全性等特点,与槐米水提液相比,槐米碳点具有显著的抗菌特性,对大肠杆菌、金黄色葡萄球菌和耐甲氧西林金黄色葡萄球菌的抗菌效果佳,尤其是对耐甲氧西林金黄色葡萄球菌的抗菌效果,且本发明制备获得的槐米碳点还具有抗氧化性以及可改善溃疡性结肠炎的功能。
Resumen de: CN122348189A
本发明涉及锂电池电极材料技术领域,具体涉及一种流化床元素掺杂硅碳负极材料及其制备方法、锂电池;制备方法包括:将硼锂化合物置于加热容器内,通入惰性载气,加热使其呈气态形式,载气连接流化床反应器气路,气态的硼锂化合物通入已提前投入多孔碳的流化床内,进行硼锂元素共掺杂;然后再通入硅烷混合气,气相裂解沉积硅,形成硼锂元素共掺杂硅碳材料,或者硅烷混合气的加入时机与气态硼锂化合物的加入时机相同;最后通入碳源,进行CVD碳包覆;本发明制备得到的碳包覆硼锂元素共掺杂硅碳材料能够提高离子扩散速率和电子电导率,显著提升电池动力学和首效。
Resumen de: CN122320888A
本发明公开了一种多孔碳包覆过氧化钙纳米颗粒及其制备方法和应用,属于纳米材料制备技术领域。本发明设计了一种实心核壳结构:以过氧化钙为核心,以氮掺杂多孔碳为壳层。制备时先在纳米碳酸钙模板表面包覆聚多巴胺,碳化形成氮掺杂多孔碳壳及内部氧化钙;再于无水乙醇‑冰水浴‑碱性温和条件下,使过氧化氢渗入碳壳内部,将氧化钙原位转化为过氧化钙,确保形成实心核壳结构。该结构中,氮掺杂碳壳兼具物理屏障与纳米酶双重角色:既能控制H2O2缓释以降低毒性,又能催化H2O2产生高毒性羟基自由基(·OH),实现“缓释‑催化”协同与化学动力治疗的自增强。本发明材料在抗菌、抗肿瘤及环境修复领域应用前景广阔。
Resumen de: CN122324857A
本发明公开了一种高性能水系锌离子电池层状钒酸铵正极材料的双功能纳米改性方法,旨在解决钒酸铵(NVO)作为水系锌离子电池正极时存在的层状结构易坍塌、本征电导率低、钒溶出严重等问题。该方法通过四甲基铵离子(TMA+)支柱效应和氧化石墨烯(GO)导电杂化的双功能纳米工程策略,先将NVO层间部分NH4+替换为TMA+作为分子柱,得到TMA+插层改性的TNVO。再将TNVO与GO复合,构建连续二维导电网络,制得TNVO@GO纳米复合正极材料。本发明改性后的材料层间间距扩大,晶格应变显著缓解,电导率大幅提升,同时有效抑制钒溶出,从而显著提高了水系锌离子电池钒基材料的电化学性能。
Resumen de: CN122322497A
本发明涉及电磁波吸收材料的技术领域,公开了一种具有褶皱结构的石墨烯电磁波吸收材料及制备方法,包括:制备氧化石墨烯悬浮液;制备可溶性磁性金属盐溶液;将氧化石墨烯悬浮液加入到细菌纤维素分散液中,得到BC‑GO复合悬浮液;在BC‑GO复合悬浮液中滴加可溶性磁性金属盐溶液,得到BC‑GO/M复合悬浮液;在BC‑GO/M复合悬浮液中加入可与羟基反应形成醚键的交联剂,离心,洗涤,分散于去离子水,得到BC/GO/M复合悬浮液;冻干;碳化,得到具有褶皱结构的C/rGO/M复合纳米片。本发明制备的C/rGO/M复合纳米片,具有多级褶皱结构,带来多重反射与散射,延长电磁波传播路径,增强对电磁波的屏蔽和衰减能力。
Resumen de: CN122326225A
本发明提供了一种白光石墨烯量子点的高效制备方法,包括:取1,3,6‑三硝基芘加入聚四氟乙烯反应釜中,并加入二甲基亚砜溶剂DMSO,超声分散后进行溶剂热反应,待反应釜冷却至室温后,将溶液旋转蒸发干,最后得到黑色的具有白色荧光的石墨烯量子点粉末。本发明成功解决了“高效制备”与“高性能白光发射”难以兼顾的核心难题,产品综合性能优异。
Resumen de: CN122324811A
本发明公开了一种MXene的制备方法及其制备纳米片或MXene‑石墨烯复合薄膜的应用。本发明将盐酸溶液、氟化氢溶液和水混合,加入MAX粉末,进行搅拌刻蚀;离心收集沉淀,洗涤沉淀,得到多层MXene沉淀;将多层MXene沉淀进行真空冷冻干燥,得到多层MXene粉末,加入到插层溶液中,依次经过搅拌、离心后得到淤泥状沉淀;在淤泥状沉淀中加水进行离心,离心后,在淤泥状沉淀中加水进行超声处理,离心收集上层分散液,然后以相同体积的水进行反复离心淤泥状沉淀收集上层分散液,并与第一次收集的上层分散液混合,得到MXene分散液。本发明通过构建大体积溶剂化团簇,同时实现单层MXene的高效剥离与原位抗氧化保护。
Resumen de: CN122324797A
本发明属于纳米材料技术领域,具体涉及一种窄管径分布寡壁碳纳米管的合成方法,旨在解决现有合成过程中管径分布过宽及结构缺陷多的问题。该方法包括:首先通过超声空化与剪切搅拌制备高分散型复合金属催化剂前驱体;随后在还原性气氛下进行阶梯式升温,诱导活性金属原位重构为预定粒径的催化剂颗粒;接着通入碳源气体与生长抑制气体的混合流场进行定向生长;并通过调节腔室总压力及利用载体限域效应实现管径分布的结构锁定;最后通过图像处理对产物层数与管径进行统计评估。本发明通过上述全流程的动力学精准调控,能够实现极窄的管径分布与高度均一的石墨层数,有效抑制非晶碳沉积,显著提升了产物的结晶度与分散特性,为高性能储能及柔性导电领域提供了优质材料。
Resumen de: CN122324799A
本发明公开了一种梯度化碳材料及其制备方法与应用,属于电池电极材料技术领域。所述梯度化碳材料包括多孔石墨化内核,以及包覆多孔石墨化内核的碳壳;梯度化碳材料中石墨化碳含量从核到壳逐渐减少,无定形碳含量从壳到核逐渐减少,孔径从核到壳梯度变化。本发明通过具有相应空间构型的前驱体经一步碳化处理,构建了“多孔石墨化内核‑碳壳”的径向梯度结构,实现了石墨化程度、无定形碳含量及孔径大小从核到壳的协同渐变,从而在离子传输动力学、结构稳定性及电化学性能上产生了显著的协同增强效果。
Resumen de: CN122321158A
本发明公开一种具有光控三酶活性的镧系金属掺杂碳点及其制备方法与在制备糖尿病慢性伤口药物中的应用。该碳点粒径1~3nm,兼具光照类氧化酶、避光类过氧化物酶及全程类磷酸酶活性,利用伤口天然光照梯度实现表层杀菌、深层抗氧化与免疫修复的空间自治治疗。通过类磷酸酶活性驱动巨噬细胞M1向M2极化,从根源逆转慢性炎症,可高效杀灭耐药菌、清除活性氧、促进胶原沉积与表皮再生,显著加速糖尿病慢性伤口愈合。本发明材料生物相容性好、制备简便,可制成凝胶、敷料等剂型,不依赖抗生素,为糖尿病慢性伤口提供新型高效修复方案。
Resumen de: CN122326221A
本发明涉及发光材料技术领域,具体为一种室温固态磷光稳定的双基质碳纳米点制备方法及其应用,该制备方法选用糊精、3‑氨丙基三乙氧基硅烷以及硼酸作为原料,通过同时引入硅基质和硼基质形成的双基质体系将具有优异稳定性的硅基质和独特电子调控能力的硼元素进行结合,通过水热法合成具有室温固态磷光稳定的双基质碳纳米点,所得双基质碳纳米点经过水中浸泡‑烘干工艺循环 3 次后,磷光强度下降幅度仅为6%~7%,该方法合成的碳纳米点在防伪和信息加密领域具有广阔的应用前景。
Resumen de: CN122326223A
本发明涉及纳米材料及离子检测领域,具体涉及一种高量子产率的氮硫共掺杂碳量子点及其制备方法和应用。该高荧光量子产率氮硫共掺杂碳量子点的制备方法包括以下步骤:S1、将柠檬酸、L‑半胱氨酸溶于去离子水中,超声搅拌至溶液澄清;S2、将步骤S1所得溶液转移至反应釜中,水热反应4~10 h;S3、将步骤S2的反应产物冷却至室温,离心收集上清液,经抽滤、透析,收集透析袋内溶液,得到所述氮硫共掺碳量子点。本发明制备的碳量子点具备高量子产率的特性,Fe3+可使其产生显著的荧光猝灭效果。该碳量子点对Fe3+展现出高选择性、优异的抗干扰能力以及高灵敏度,在金属离子检测领域具有重要的实际应用价值。
Resumen de: CN122324855A
一种多壁碳纳米管生长硫化铋纳米针/海胆硫化铋多维复合材料的制备方法和应用,它属于半导体功能材料技术领域。本发明的目的是要解决现有硫化铋材料用作气体敏感材料仍存在需工作温度高、灵敏度低、电阻值大和电导率低的问题。方法:一、制备水热反应溶液;二、水热反应;三、产物收集处理。多壁碳纳米管生长硫化铋纳米针/海胆硫化铋多维复合材料作为H2S室温敏感材料使用。本发明通过将多壁碳纳米管生长硫化铋纳米针/海胆硫化铋多维复合材料印制在环形电极上获得H2S传感器,在室温下对H2S展现出优异的敏感特性,测量范围为10ppb~5ppm,可实现痕量H2S检测,可广泛应用于H2S存储、食物安全、化工等领域痕量H2S检测。
Resumen de: CN122326222A
本申请公开了一种碳量子点的制备方法,包括以下步骤:将吲哚‑3‑羧酸、2‑氨基‑3‑碘吡啶和聚乙烯亚胺加入无水乙醇中超声溶解形成混合溶液,转移至聚四氟乙烯内衬的高压反应釜中进行溶剂热反应,反应完成后自然冷却至室温,离心获得上清液,将上清液转移至透析袋中用无水乙醇透析去除未反应的小分子,收集透析后的溶液经旋转蒸发除去无水乙醇得到浓缩物,对浓缩物进行处理,得到碳量子点,本申请采用一步溶剂热合成法,工艺简单,无需后续功能化修饰步骤。
Nº publicación: CN122324796A 03/07/2026
Solicitante:
云南师范大学
Resumen de: CN122324796A
本申请涉及碳点领域,具体提供了一种玫瑰花基碳点的制备方法及玫瑰花基碳点的应用。玫瑰花基碳点的制备方法包括如下步骤:步骤1,对玫瑰花进行预处理,得到玫瑰花瓣粉末;步骤2,对玫瑰花瓣粉末进行热解处理;步骤3,向热解产物中加入乙醇,进行超声溶解;步骤4,将超声产物进行离心,然后取上清液进行过滤,得到碳点溶液;步骤5,冷冻干燥碳点溶液得到碳点粉末。制备得到的碳点用于双模式荧光探针。本申请利用玫瑰花多组分及N、O共存特性,不同组分热解速率差异导致碳核与官能团形成空间错位分布。不均匀结构使表面态呈离散能级,抑制能量快速转移,避免单一发光通道主导,从而实现碳核与表面态共同发光,形成稳定双发光中心。