Resumen de: CN121225572A
本发明公开了一种生物质焦油基碳量子点及其制备方法与应用,包括:将生物质在惰性气体氛围下进行慢速热解,制得生物油;对生物油进行常压蒸馏,随后将提取得到的生物油残渣经干燥、研磨后加入过氧化氢进行超声处理,形成混合溶液;向混合溶液中加入去离子水,并搅拌形成均匀溶液,随后经离心、透析处理,即得。本发明以生物质焦油作为前驱体制备碳量子点,原料来源广泛、价格低廉且可再生,实现了资源的有效利用,符合绿色环保的理念,且充分利用了生物质焦油的碳含量高的特性,制备工艺操作简单,成本低,收率高,且制得的碳量子点可应用于水体中Fe2+离子的检测,具有优异的荧光性能、良好的稳定性,在水质检测中展现出巨大的应用潜力。
Resumen de: CN121227346A
本发明属于碳纳米材料领域,提出了一种利用煤矸石氧化解聚剥离制备含硅、铝等元素掺杂碳量子点材料的方法;包括煤矸石的筛选和配合、氧化解聚剥离、离心透析膜过滤以及改性、干燥等步骤,通过对原料以及各个步骤进行具体设置,荧光碳点的粒径或荧光性能通过选择性氧化解聚剥离条件而可以进行具体选择设置,使得本发明制备的多无机元素掺杂碳量子点材料的主体粒径保持在1.5~2.0nm范围内,结构稳定,光性能也符合要求,并可进一步改性,有望应用在光伏器材、生物成像、光催化降解有机污染物或传感等领域。
Resumen de: CN121225580A
本发明提供一种强、弱氧化石墨烯共存的高碳含量氧化石墨烯,所述氧化石墨烯中强氧化石墨烯含量在43‑76%之间,碳含量≥59.8%,导热系数在630‑735mm2/s之间。本发明还提供该氧化石墨烯的制备方法。本发明获得了强、弱氧化石墨烯共存的氧化石墨烯,在碳含量高的同时,制备得到的石墨烯导热膜具有良好的组装有序性及高导热系数,导热性能好。
Resumen de: CN121225573A
本发明公开了一种二维多孔碳材料及其制备方法和应用,属于电解水制氢技术领域。该二维多孔碳材料的制备方法为:将聚丙烯酰胺溶液、还原剂、含硫化合物和金属盐进行搅拌,形成凝胶状空间网络结构后,进行微波水热反应,得到前驱体;将前驱体用水溶性盐溶解后得到混合溶液,然后将混合溶液进行冷冻干燥,得到混合物;将混合物进行退火,退火结束后,水洗得到二维多孔碳材料。本发明制备得到的二维多孔碳材料具有优异的导电性和连续的电子传输路径,为电催化析氢反应提供充分的电极/电解液界面,提高硫化物的电催化效率。
Resumen de: CN121225556A
本申请公开了一种磷酸锰铁前驱体及其制备方法、磷酸锰铁锂和锂离子电池,涉及电池技术领域。该方法包括:将锰源、铁源、络合剂和氧化剂混合,调节pH至2.0~3.5,反应得到初始沉淀物;加磷源,调pH至4.5~6.0,反应得到锰铁磷酸盐共沉淀物;将共沉淀物和碳源进行溶剂热反应,得到溶剂热产物;产物依次分离、煅烧,得到表面具有碳包覆层的磷酸锰铁前驱体。本申请通过双重pH调控,锰铁共沉淀pH窗口从2.0~5.0缩窄至4.5~6.0,锰铁分布均匀性提高40%以上,提高锰铁元素均匀性;磷酸铁锰锂材料表面碳包覆层有效抑制锰溶出,增强材料结构稳定性;循环1000次后容量保持率从68%提升至88%。
Resumen de: CN121227347A
本发明属于碳点技术领域,提供了一种聚对苯二甲酸乙二醇酯基碳点及其制备方法和应用。本发明的制备方法包含将废聚对苯二甲酸乙二醇酯和乙醇胺进行反应。本发明制备的聚对苯二甲酸乙二醇酯基碳点呈现出近似球形结构,分散性良好,无明显团聚现象;在惰性气氛中具有较高的残炭率,表现出良好的热稳定性和炭化能力;聚对苯二甲酸乙二醇酯基碳点加入至聚酯中进行阻燃改性,在合适的添加量下能够显著提高聚酯的阻燃性能,同时不会使聚酯的力学性能出现大幅度下降。
Resumen de: CN121202117A
本发明涉及退役锂离子电池回收技术领域,且公开了一种基于退役锂电池负极石墨的碳量子点绿色合成方法。废旧电池经过放电、拆解得到负极片,以去离子水为介质将负极片上的石墨从铜箔上剥离。得到的废旧石墨经过焙烧、研磨除去有机物等杂质后以备制备碳量子点。经过预处理的负极石墨在氧化剂的氧化作用和水热反应的高温高压作用下,被切割分解成小尺寸的碳纳米片即碳量子点。得到的反应溶液经过离心过滤操作,随后取上清液通过微孔滤膜、并用透析袋透析,最后得到纯化以后的蓝色荧光碳量子点。本发明方法从废旧负极石墨中回收碳源制备碳量子点,对废旧负极石墨的高价值资源化利用具有重要意义。
Resumen de: WO2025261635A1
An aspect of the present invention relates to a composite material comprising a foamed substrate having pores and having a three-dimensional structured surface with a void ratio of more than 0.4 and a coating on the three-dimensional structured surface, so that the composite material has a total hemispherical reflectivity of no more than 5% over the entire wavelength range from 400 nm to 2.5 µm and for any angle of incidence lower than 60°, preferably at an angle of incidence lower than 80°, more preferably an angle of incidence lower than 85°.
Resumen de: WO2025264569A1
A method of producing carbon nanotubes is provided in which a Ni-Cu alloy catalyst on a carbon nanotube support is exposed to a light hydrocarbon stream at a temperature ranging from 500-700°C. After exposure, a carbon nanotube product is recovered comprising support carbon nanotubes and accreted nanotubes. The exposure also produces hydrogen.
Resumen de: WO2025263170A1
The present invention addresses the problem of providing a solid-state carbon quantum dot which has a light emission wavelength in a low-wavelength region and which has high internal quantum efficiency. A solid-state carbon quantum dot that solves the above problem comprises a nitrogen atom and an aluminum atom, has an absorption peak in a range of 1290 cm-1 or more and 1310 cm-1 or less and/or a range of 1560 cm-1 or more and 1615 cm-1 or less in measurement by infrared spectroscopy, and has a maximum light emission wavelength of 300-450 nm.
Resumen de: CN121204685A
本申请涉及空间探测技术领域,具体而言,涉及一种基于模拟月壤的熔盐电解高效制氧系统及方法,所述系统包括电解槽、阴极、阳极以及直流稳压电源,其中:电解槽由镍基高温合金制成,槽体内部设置有电解质,槽口处采用密封机构进行密封;阴极设置在槽体内部的一侧,由泡沫镍构成;阳极设置在槽体内部的另一侧,由铁镍合金制成;阳极的外部设置有氧气收集罩;直流稳压电源设置在电解槽的外部,分别与阴极和阳极连接;密封机构上设置有氧气出口和进料口,氧气出口与氧气收集罩连通。本申请采用大比表面阴极,使更多分散到阴极的月壤颗粒能够同时接触熔盐电解质和阴极表面,大幅提升电解效率以及氧气产出率。
Resumen de: CN121202116A
本申请涉及微波吸收材料技术领域,公开了一种单宁酸纳米碳纤维微波吸收填料、微波吸收复合材料及其制备方法。所述单宁酸纳米碳纤维微波吸收填料的制备方法包括:将单宁酸溶于混合溶剂中,得到单宁酸溶液;向所述单宁酸溶液中加入氨水,搅拌反应,得到悬浊液;将所述悬浊液离心收集固相,洗涤、干燥,得到前驱体;将所述前驱体在氮气气氛中进行热处理,即得单宁酸纳米碳纤维吸波填料。本申请以小共轭单体单宁酸为原料,在碱性环境中单宁酸与空气中的氧气发生氧化还原反应生成具有更强的离域π电子结构的醌结构,进一步通过π‑π堆积以及氢键相互作用形成具有有序结构的单宁酸纳米纤维;进而得到具有良好微波吸收性能的单宁酸纳米碳纤维。
Resumen de: CN121202106A
本发明公开了一种高倍率硬碳材料制备方法,包括如下步骤:将前驱体材料与粘胶纤维副产物半纤维素碱溶液混合,进行水热反应,形成包覆、活化后的前驱体材料;将该包覆、活化后的前驱体材料进行碳化,得到碳前驱体,再经洗涤,干燥,粉碎,得到碳包覆的硬碳材料。本发明用以低成本解决倍率性能较低的技术问题。
Resumen de: CN121215781A
本发明提供一种静电纺丝表面原位生长二维MOF的氧还原催化剂的制备方法,属于纳米材料的技术领域。首先,以聚丙烯腈PAN、聚甲基丙烯酸甲酯PMMA为原料,通过同轴静电纺丝技术制备中空的碳纳米管HCNFs;其次,在中空碳纳米管HCNFs表面原位生长的二维沸石咪唑骨架ZIF‑L;最后,对ZIF‑L@HCNF进行经过高温煅烧和酸处理,得到ZIF‑L@HCNF‑x复合材料,即得到氧还原催化剂。本发明通过将二维沸石咪唑骨架ZIF‑L生长在具有高长径比的电纺碳纤维HCNFs表面,利用碳纤维交织形成的网络结构,增大催化剂的表面积,解决ZIF‑L纳米片易堆叠的问题,提高催化剂的分散度,有效增大了催化剂与反应物的接触面积。
Resumen de: CN121202094A
本发明公开了一种快速合成磷酸焦磷酸铁钠电极材料、其制备方法与正极电极;涉及电池技术领域;其中制备方法包括S1:将钠源、铁源、磷源以及碳源混合后,加入预设体积的去离子水,搅拌直至原料完全溶解,得到浅黄色透明状溶液;S2:向上述浅黄色透明状溶液加入预设量的改性碳纳米管,置于超声环境下分散得到稳定的悬浮液;S3:开启喷雾干燥机从出料口收集得到黄绿色球形前驱体粉末;S4:将喷雾干燥得到的黄绿色球形前驱体粉末置于磁舟中,在纯氩气环境下300℃以2℃/min升温速率保温5h,得到黑色粉末;S5:将黑色粉末转移至焦耳热设备中,在预设条件下反应预设时间,得到最终黑色粉末状产物。通过创新工艺设计与材料改性,解决了传统制备技术中周期长、导电性差、振实密度低等核心问题。
Resumen de: CN121202109A
本发明公开了一种碳纳米管笼@碳泡沫电磁屏蔽复合材料及制备方法和应用,属于电池屏蔽材料技术领域。将三聚氰胺泡沫浸于镍盐和钴盐组成的混合溶液中,静置4‑24h,取出干燥得CoNi/三聚氰胺泡沫;将碳源置于坩埚下游,步骤(1)CoNi/三聚氰胺泡沫置于坩埚上游,盖上坩埚盖;在惰性气体气氛下,以 2‑10℃/min 的升温速率加热至 600‑1000℃,保温 5‑360 min,自然冷却至室温,得碳纳米管笼@碳泡沫电磁屏蔽复合材料;本发明将过渡金属盐与三聚氰胺泡沫、通过简单的浸泡+热解法制备成碳纳米管笼/泡沫炭复合材料,有望结合过渡金属、氮掺杂碳泡沫及新型碳纳米管笼三者的优势,实现优异的电磁波吸收性能,为解决电磁波污染问题提供新的途径。
Resumen de: CN120019025A
The present invention relates to a carbon nanotube dispersion and a method for preparing the same, the carbon nanotube dispersion comprising: carbon nanotubes; a first dispersant containing nitrogen atoms; a mixture of a second dispersant and a cation; and a solvent, in which the second dispersant contains at least one hydroxyl group and at least one carboxyl group in an aromatic ring, and the cation includes at least one selected from the group consisting of an alkali metal ion, an alkaline earth metal ion, an aluminum ion, a transition metal ion, an ammonium ion, and a sulfur # imgabs0 # ion.
Resumen de: US2025393181A1
Disclosed are electromagnetic interference (EMI) absorbers and compositions including carbon nanostructure (CNS) filler within a liquid crystal polymer (LCP) matrix. In exemplary embodiments, an electromagnetic interference (EMI) absorber comprises carbon nanostructure filler within a matrix. The matrix comprises liquid crystal polymer. And the EMI absorber includes at least about 0.1 weight percent but not more than about 5 weight percent of the carbon nanostructure filler within the matrix.
Resumen de: US2025388471A1
There is provided a carbon material dispersion wherein even when it contains a high concentration of a carbon material, the dispersibility of the carbon material is excellent and the dispersibility is retained stably over a long period of time. The carbon material dispersion contains: at least one carbon material selected from the group consisting of carbon black, carbon fibers, carbon nanotubes, graphite, and graphene; water; and a polymeric dispersant, wherein the polymeric dispersant is a polymer having carboxy groups at least part of which are neutralized with an alkali, the polymer having 50 to 80% by mass of a constituent unit (1) derived from (meth)acrylonitrile and 20 to 50% by mass of a constituent unit (2) derived from (meth)acrylic acid, provided that the total amount of the constituent unit (1) and the constituent unit (2) is 100% by mass, and the polymer has a number average molecular weight of 10,000 to 50,000.
Resumen de: US2025388473A1
Methods for synthesizing and processing graphene quantum dots are disclosed. In use, a first mixture is created comprising carbon, wherein the carbon is obtained from a reactor. Next, a second mixture is created comprising the first mixture and toluene. The second mixture is sonicated. Additionally, the sonicated second mixture is filtered to produce a filtrate, wherein the filtrate includes graphene quantum dots. It is recognized that reactor-derived carbonaceous materials may often be simply discarded and considered waste. Thus, the ability to extract quantum dots from such waste provides a pioneering new approach to bringing value to that which has often been overlooked or thrown out.
Resumen de: US2025389048A1
The present application is related to a method of producing single-crystal spherical carbon nanoparticles that are single-crystals and spherical. The single-crystal spherical carbon nanoparticles produced by the production method of the present invention can generate fluorescence with high fluorescence quantum efficiency when excited by a light in a wide wavelength range from ultraviolet light to visible light, and have a fluorescence quantum efficiency of 10% or more compared to conventionally known carbon nanoparticles. In addition, The single-crystal spherical carbon nanoparticles produced by the production method of the present invention can be used for drug delivery, because they do not have toxicities to living organisms that compound semiconductors made of cadmium, selenium, tellurium, etc. have. Furthermore, since the single-crystal spherical carbon nanoparticles produced by the production method of the present invention are spherical, they can be densely packed as electrode materials for solar cells and secondary ion batteries, and can be used for a negative electrode for lithium batteries or an electrode material for solar cells.
Resumen de: US2025388807A1
A display device according to an aspect of the disclosure includes a light-emitting element comprising a nanoparticle function layer comprising at least one nanoparticle and a fluorine-containing component, in which the number of fluorine atoms constituting the fluorine-containing component is equal to or greater than the number of carbon atoms constituting the fluorine-containing component.
Resumen de: CN120882489A
A catalyst, a catalyst precursor, and carbon nanotubes grown using the catalyst. The catalyst comprises a support comprising alumina and a cobalt species on the surface of the support, wherein cobalt is the sole active catalyst species for the growth of carbon nanotubes. The carrier surface does not contain iron.
Resumen de: CN121180976A
本申请公开一种竹粉碳点制备方法及竹粉碳点,本申请的制作方法依次包括清洗、烘干及粉碎竹料;制备包括乙二胺、蒸馏水和硅烷偶联剂KH‑792的混合液;将混合液转移至高压反应釜内,真空高温反应一段时间;分别处理反应后的溶液和固定,离心过滤溶液的纯化后的滤液,蒸馏水洗涤固体得洗涤液;旋蒸处理纯化后的滤液和洗涤液获得干燥的固体碳点。本申请中的竹粉碳点由上述制备方法制备。本申请利用硅烷偶联剂KH‑792钝化竹粉中的缺陷、能级调控、抑制团聚,成功将竹粉制碳点的荧光效率提高到67.88%,扩展了碳点的应用。
Nº publicación: CN121182486A 23/12/2025
Solicitante:
安徽大学金寨润元生物科技有限公司
Resumen de: CN121182486A
本发明公开一种具有席夫碱结构的黄精衍生碳点及其制备方法与应用,该黄精衍生碳点包含席夫碱结构、羟基及羧基官能团;且该黄精衍生碳点微观形貌为球形,粒度分布均匀,粒径范围为1.5~3.6 nm,晶格间距为0.20~0.21 nm。本发明水溶性良好,在330 nm激发下发射波长为407 nm,绝对荧光量子产率为16.2%;对Fe3+等金属离子展现出高特异性识别能力,检测限低至1μM,且在10~100μM浓度范围内荧光强度与离子浓度呈良好线性关系;具有良好的自由基清除能力,在100μg/mL的浓度下对DPPH和ABTS自由基的清除效果均达到80%以上;具有一定的广谱抗菌效果。