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Resultados 62 resultados LastUpdate Última actualización 22/04/2019 [18:48:00] pdf PDF

Solicitudes publicadas en los últimos 60 días (excluida automoción) / Applications published in the last 60 days (Automotion publications excluded)

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SCALABLE BACK-GATED FUNCTIONALIZED GRAPHENE FIELD EFFECT TRANSISTORS FOR DETECTION OF DNA AND OTHER TARGET MOLECULES

NºPublicación: US2019113474A1 18/04/2019

Solicitante:

BAKER HUGHES A GE CO LLC [US]

WO_2017160724_PA

Resumen de: US2019113474A1

A method of fracturing a subterranean formation penetrated by a well comprises: combining an aqueous carrier with a superabsorbent polymer and a borated galactomannan to form a hydraulic fracturing composition; and pumping the hydraulic fracturing composition into the well.

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IMMOBILIZED PRODUCT AND METHOD FOR PRODUCING SAME

NºPublicación: US2019112193A1 18/04/2019

Solicitante:

STELLA CHEMIFA CORP [JP]

KR_20190002494_A

Resumen de: US2019112193A1

To provide a novel immobilized product in which a carbon material and/or a silicon material is/are immobilized on a base material surface by a chemical bond via a linking group, and a method for producing the same. The immobilized product is an immobilized product in which a carbon material is immobilizing on a surface of a base material, wherein the carbon material is chemically bonded on the surface of the base material via a linking group, and the linking group is at least one selected from the group consisting of a —NH group, a —NH—R1—NH group, a —SO group, a R2 group, a —O—R3—O group, and a R4 group (in which the R1 to R4 each independently represent at least one selected from the group consisting of a chain alkyl group, a cyclic alkyl group, a chain alkenyl group, a cyclic alkenyl group, a chain alkynyl group, etc.).

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NANOCARBON SEPARATION DEVICE, AND NANOCARBON SEPARATION METHOD

NºPublicación: WO2019073882A1 18/04/2019

Solicitante:

NEC CORP [JP]

Resumen de: WO2019073882A1

This nanocarbon separation device is provided with: a first porous structure for holding a solution including a surfactant; a second porous structure for holding a dispersion medium; a holding part which is provided between the first porous structure and the second porous structure, and holds a dispersion which includes nanocarbon and the surfactant, said dispersion having a lower surfactant content than the solution; a separation tank in which the first porous structure, the holding part, and the second porous structure are disposed and accommodated in that order; a first electrode which is provided to a lower part of the first porous structure; and a second electrode which is provided to an upper part of the second porous structure.

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NANOCARBON SEPARATION DEVICE, NANOCARBON SEPARATION METHOD

NºPublicación: WO2019073876A1 18/04/2019

Solicitante:

NEC CORP [JP]

Resumen de: WO2019073876A1

A nanocarbon separation device that is characterized by comprising: a porous structure that can hold a dispersion that includes nanocarbon; a first electrode that is arranged to contact at least a portion of an upper end of the porous structure; and a second electrode that is arranged to contact at least a portion of a lower end of the porous structure.

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METHOD FOR DOPING CARBON NANOTUBES

NºPublicación: EP3470368A1 17/04/2019

Solicitante:

COMMISSARIAT ENERGIE ATOMIQUE [FR]

Resumen de: EP3470368A1

La présente invention concerne un procédé utile pour préparer une couche de nanotubes de carbone, en particulier transparente, et de conductivité électrique améliorée et stabilisée, ledit procédé comprenant au moins les étapes consistant à : (i) disposer d'au moins une couche de nanotubes de carbone, en particulier transparente, possédant une résistance carrée, R ¡ini, (ii) doper au moins une zone de ladite couche de nanotubes de carbone pour former une zone de nanotubes de carbone dopée ayant une résistance carrée stabilisée, R ¡ , de valeur inférieure à R ¡ini. caractérisé en ce que l'étape (ii) est réalisée par pulvérisation, en surface d'au moins ladite zone de ladite couche de nanotubes de carbone (i), d'au moins un dopant choisi parmi les sels et complexes organométalliques de platine ou de palladium de degré d'oxydation +IV ou +II et en ce que de préférence la zone de nanotubes de carbone dopés possède en outre une valeur de transmittance supérieure à 80% sur l'ensemble du spectre du visible.

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NANOFIBER SHEET

NºPublicación: EP3468791A1 17/04/2019

Solicitante:

LINTEC OF AMERICA INC [US]

JP_2019053301_A

Resumen de: WO2017214474A1

A nanofiber sheet is described that is composed of a substrate and a layer of oriented nanofibers. Nanofibers of the sheet can be oriented in a common direction. In some orientations, light absorbent sheets can absorb over 99.9%, and in some cases over 99.95%, of the intensity of light incident upon the sheet. Methods for fabricating a light absorbent sheet are also described.

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种低细胞毒性中空多孔纳米炭及其制备方法

NºPublicación: CN109626356A 16/04/2019

Solicitante:

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Resumen de: CN109626356A

本发明提供了种低细胞毒性中空多孔纳米炭及其制备方法,属于纳米材料领域。本发明首先将生物质碳源溶液和软模板溶液混合进行水热反应,得到炭前驱体,再将所述炭前驱体进行煅烧,并在煅烧过程中对煅烧气氛和温度进行控制,得到低细胞毒性中空多孔纳米炭。本发明以生物质作为碳源,来源广泛、种类繁多、炭含量高、价格低廉、绿色环保、可再生、经济性好、符合可持续发展的要求;本发明的制备方法步骤简单、无需使用强酸或高毒性试剂、可操控性强、安全性高、可进行大规模工业化生产;本发明提供的低细胞毒性中空多孔纳米炭微孔结构发达,比表面积较大,毒性低。

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利用麦芽糖制备石墨烯量子点的方法

NºPublicación: CN109626363A 16/04/2019

Solicitante:

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Resumen de: CN109626363A

本发明公开了种采用麦芽糖制备石墨烯量子点的方法。以麦芽糖为碳源,去离子水为溶剂制备得到。具体制备方法为:(1)在带有搅拌装置的容器内加入定质量的去离子水,再加入定质量的麦芽糖,搅拌10‑30min使之完全溶解;(2)将上述得到的溶解液加入水热釜反应器,逐渐升温至150‑250℃,保持压力在10Mpa以内,进行水热反应,反应2‑15h后出料;(3)将第(2)步得到的黑褐色物料在离心机中以6000‑12000r/min的速度进行离心分离,底层为黑褐色沉淀,上层为淡黄色透明液体,该液体即为石墨烯量子点的水溶液。采用本方法所制备的石墨烯量子点粒径尺寸均匀,能较好地溶解在水中,并且具有良好的荧光性能,且制备过程简单,产物分离容易,并且绿色环保,对环境无任何污染。

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种氮掺杂中空石墨烯微球材料及其制备方法与应用

NºPublicación: CN109607515A 12/04/2019

Solicitante:

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Resumen de: CN109607515A

本发明公开了种氮掺杂中空石墨烯微球材料及其制备方法和应用;该制备方法包括以带正电荷聚苯乙烯微球为模板,通过静电相互作用将带负电荷的氧化石墨烯包覆在带正电荷聚苯乙烯微球表面形成核壳结构复合物,再加入三聚氰胺通过高温煅烧制备出了性能较好、结构可控的氮掺杂中空石墨烯微球材料;将石墨烯材料制成氮掺杂中空石墨烯微球结构可以增大它的比表面积,高的比表面积可以促使吸附/脱附过程中更多的活性点暴露在外面,可提高储能容量;中空结构也可以促进钠离子在活性物质中快速扩散,并且在充放电过程中为活性物质的体积膨胀收缩提供缓冲空间,提高钠离子电池的倍率性能。

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四氧化三钴负载于碳纳米片电极材料的制备方法及其产品和应用

NºPublicación: CN109616660A 12/04/2019

Solicitante:

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Resumen de: CN109616660A

本发明公开了种四氧化三钴负载于碳纳米片电极材料的制备方法及其产品和应用,通过步法的方式将四氧化三钴负载于纳米片的表面,同时碳的含量30%以上,首先将钴盐溶于硫酸钠饱和溶液中得A,将油酸钠溶于饱和的硫酸钠溶液中得B,将溶液A滴加到溶液B中,待溶液中的水分蒸发完后,将前驱体干燥。随后在氮气气氛下,煅烧即得到负载于碳纳米片的黑色的四氧化三钴纳米颗粒。产物稳定性高,性质稳定,不仅能具备四氧化三钴高的比容量,同时又具备了碳的高导电性以及缓解体积膨胀,使得材料具备优异的循环稳定性。该制备方法操作简单,原料成本低廉,反应温度低,并且电化学性质优异,可广泛应用于催化、传感及能量存储等领域。

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种通过热解分子筛制备的碳量子点及其在过氧化氢检测方面的应用

NºPublicación: CN109607512A 12/04/2019

Solicitante:

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Resumen de: CN109607512A

种通过热解分子筛制备的碳量子点及其在过氧化氢检测方面的应用,属于碳基纳米材料技术领域。本发明借助分子筛的空间限域作用,经过水热合成和后处理得到的具有紫外光激发、尺寸较小且均(约为2.5nm)、具有良好稳定性和光致发光性质的碳量子点材料及其作为荧光探针在过氧化氢检测方面的应用。其主要制备过程为:以铝源、镁源、磷酸及有机模板剂为原料,利用水热合成制备分子筛晶体产物,经过热解、层析等操作提纯以得到水溶性的碳点产物;所制备的碳点呈现激发不依赖的蓝色荧光(发射峰位约为420nm),且能够对过氧化氢实现高灵敏度响应,其猝灭常数和检测限分别为7.3×10M和3.16μM。

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基于单壁碳纳米管悬空结构的柔性传感器及其制作方法

NºPublicación: CN109607469A 12/04/2019

Solicitante:

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Resumen de: CN109607469A

本发明提供基于单壁碳纳米管悬空结构的柔性传感器及其制作方法,利用硅微加工技术,在柔性基底上设置电极对;然后通过交流耦合介电电泳的方法,使单壁碳纳米管在悬浮液中的电场力作用下定向沉积在柔性基底上的电极对间;接着配比饱和的Au电镀液,实施区域选择性电沉积Au技术,实现Au电极上的定域沉积Au压覆单壁碳纳米管。本发明实现了单根或单束单壁碳纳米管的维定向排布,提高器件的灵敏性和稳定性,易于工业化生产。

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GIANT MAGNETORESISTANCE-BASED BIOSENSORS

NºPublicación: WO2019068204A1 11/04/2019

Solicitante:

ZHANG JIN [CA]

Resumen de: WO2019068204A1

Disclosed is a system for detecting one or more target analytes which includes a resistor structure comprised of a substrate, a graphene-based nanocomposite material located on a surface of the substrate with the graphene-based nanocomposite material exhibiting one or more magnetoresistance properties. A surface of the nanocomposite material includes molecular sensing elements bound thereto which exhibit an affinity for binding with the target analytes. Electrodes are connected to the resistor structure connectable to a power source and a device for measuring a resistance across the resistor structure for sensing a giant magnetoresistance (GMR) value of the resistor structure. Included are magnetic colloidal nanoparticles exhibiting preselected magnetic properties with an outer surface of the magnetic colloidal nanoparticles being modified to allow interaction with the surface of the resistor structure resulting in a change in the GMR value of the resistor structure. The resistor structure is configured to be operably connected to a magnetic field generating device configured to apply a magnetic field to the graphene-based nanocomposite wherein the field has a magnitude in a range from greater than 0 to about 5 Tesla. A presence of target analytes in a vicinity of the surface of the resistor structure induces the interaction to occur by binding of the target analytes to the molecular sensing elements bound thereto causing a change in GMR value of the resistor structure.

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LITHIUM ION-BASED INTERNAL HYBRID ELECTROCHEMICAL ENERGY STORAGE CELL

NºPublicación: US2019108948A1 11/04/2019

Solicitante:

NANOTEK INSTRUMENTS INC [US]

Resumen de: US2019108948A1

Provided is an internal hybrid electrochemical cell comprising: (A) a pseudocapacitance cathode comprising a cathode active material that contains a conductive carbon material and a porphyrin compound, wherein the porphyrin compound is bonded to or supported by the carbon material to form a redox pair for pseudocapacitance, wherein the carbon material is selected from activated carbon, activated carbon black, expanded graphite flakes, exfoliated graphite worms, carbon nanotube, carbon nanofiber, carbon fiber, a combination thereof; (B) a battery-like anode comprising lithium metal, lithium metal alloy, or a prelithiated anode active material (e.g. prelithiated Si, SiO, Sn, SnO2, etc.), and (C) a lithium-containing electrolyte in physical contact with the anode and the cathode; wherein the cathode active material has a specific surface area no less than 100 m2/g which is in direct physical contact with the electrolyte.

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POLYMER COMPOSITES WITH HIGHLY TUNABLE THERMAL AND MECHANICAL PROPERTIES AND METHODS OF MANUFACTURE

NºPublicación: US2019106613A1 11/04/2019

Solicitante:

TEXAS A & M UNIV SYS [US]

WO_2017177198_PA

Resumen de: US2019106613A1

A method of forming an polymer composites is disclosed herein that includes infiltrating CNT sponges with a polymer or metal to form a composite. The method uses a relatively easy, scalable, and low-cost synthesis process that makes the composites attractive as TIM. CNTs in the sponge structure are covalently bonded, resulting in a low Young's modulus while at the same time maintaining a good thermal conductivity. This strategy makes it possible to obtain both high deformability and high thermal conductivity, which are difficult to have simultaneously due to their adverse correlation.

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CONDUCTIVE ARTICLES PRODUCED FROM A COMPOSITE MATERIAL AND PROCESS TO PRODUCE SUCH ARTICLES

NºPublicación: WO2019068825A1 11/04/2019

Solicitante:

TOTAL RES & TECHNOLOGY FELUY [BE]

Resumen de: WO2019068825A1

The invention relates to a conductive article made from a composite material comprising: - from 50 to 99 wt% of a first polyethylene resin as based on the total weight of said composite material, wherein the first polyethylene resin has a melt index MI2 of at most 0.45 g/10 min as determined according to ISO 1133 (190 °C - 2.16 kg), and a density ranging from 0.920 g/cm3 to 0.980 g/cm3 as determined according to ISO 1183 at a temperature of 23 °C; and - from 0.2 to 10 wt% of carbon particles as based on the total weight of said composite material as determined according to ISO 11358 selected from nanographene, carbon nanotubes or any combination thereof; wherein the composite material further comprises from 0.10 to 0.48 wt% of polyethylene glycol as based on the total weight of the composite material, and in that said polyethylene glycol is selected to have a weight average molecular weight Mw of at most 20,000 g/mol. The invention also relates to a process to produce such conductive article as well as to the use of polyethylene glycol such a conductive article.

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CARBON FIBRE COMPRISING CARBON NANOTUBES

NºPublicación: EP3466876A1 10/04/2019

Solicitante:

CAMBRIDGE ENTPR LTD [GB]

US_2018305211_A1

Resumen de: EP3466876A1

The present invention relates to carbon fibre comprising carbon nanotubes which typically exhibit armchair chirality and have metallic properties. The carbon nanotubes produced have a conductivity of at least 0.7 x 10 6 Sm -1 in at least one direction. The invention has particular application to the manufacture of components such as electrical conductors. Suitable electrical conductors include wires (eg for electrical motors) and cables (eg for transmitting electrical power).

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COMPOSITE MATERIAL FOR ELECTROCHEMICAL STORAGE

NºPublicación: EP3467910A1 10/04/2019

Solicitante:

ENEVATE CORP [US]

JP_2019054010_A

Resumen de: EP3467910A1

Composite materials and methods of forming composite materials are provided. The composite materials described herein can be utilized as an electrode material for a battery. In certain embodiments, the composite material includes greater than 0 % and less than about 90 % by weight silicon particles, and greater than 0 % and less than about 90 % by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases can be a substantially continuous phase. The method of forming a composite material can include providing a mixture that includes a precursor and silicon particles, and pyrolysing the precursor to convert the precursor into one or more types of carbon phases to form the composite material.

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石墨烯量子点及其应用和微波辅助下制备石墨烯量子点的方法

NºPublicación: CN109592671A 09/04/2019

Solicitante:

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Resumen de: CN109592671A

本发明公开了种石墨烯量子点及其应用和微波辅助下制备石墨烯量子点的方法,采用自下而上的制备方法从小分子1,3,6‑三硝基芘为前驱物,在碱性条件下,快速合成石墨烯量子点。本发明石墨烯量子点能作为荧光探针应用于生物细胞成像和暖白光LEDs,本发明制备石墨烯量子点的方法制备周期短,甚至在3分钟内即可制备好荧光稳定的石墨烯量子点。本发明合成方法简单,周期短,重复性高。所得石墨烯量子点均匀、稳定、荧光强,量子产率高,在暖白光LED和生物探针领域有很重要的应用价值。

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种具备光激发活性氧产生性能的碳纳米点及其制备方法

NºPublicación: CN109592664A 09/04/2019

Solicitante:

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Resumen de: CN109592664A

本发明公开种具备光激发活性氧产生性能的碳纳米点及其制备方法,具备光激发产生活性氧特性的硅掺杂碳纳米点的制备方法,属于碳纳米材料(碳点)的制备技术领域,本发明利用多巴胺和3‑氨基丙基三乙氧基硅烷的混合溶液在60℃的温度下制备碳点水溶液,通过透析纯化得到硅掺杂的碳纳米点。本发明首先发现在中温条件下可合成均、荧光强度高且具备光激发活性氧产生特性的碳纳米点,在生物成像、传感中有着重要的应用前景。所述合成方法简单、成本低、在普通实验室均可以完成制备。

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种同时检测鸟嘌呤和腺嘌呤的电化学传感器及其制备方法

NºPublicación: CN109596686A 09/04/2019

Solicitante:

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Resumen de: CN109596686A

本发明属电化学电极材料制备技术领域,提供种同时检测鸟嘌呤和腺嘌呤的电化学传感器,基于铜@镍/氮、硼掺杂还原氧化石墨烯的电化学传感器,同时检测鸟嘌呤和腺嘌呤。基于铜@镍/氮、硼掺杂还原氧化石墨烯复合材料,并用其修饰玻碳电极表面制备而成,高的灵敏度和选择性,电极修饰过程更加简便,有良好的稳定性和重现性。基于铜@镍/氮、硼掺杂还原氧化石墨烯的复合材料,水热法制备氮、硼掺杂还原氧化石墨烯N,B‑rGO,制备铜@镍/氮、硼掺杂还原氧化石墨烯Cu@Ni/N,B‑rGO;制备电极。提高了电极的灵敏度且使电极修饰过程更简单。电化学传感器用于构建同时检测腺苷中鸟嘌呤和腺嘌呤的传感体系,显著提高电极的选择性。

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种微球组装多孔碳材料及其制备方法和用途

NºPublicación: CN109592663A 09/04/2019

Solicitante:

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Resumen de: CN109592663A

本发明涉及种微球组装多孔碳材料及其制备方法和用途,所述的微球组装多孔碳材料包括直径为0.3~2μm的碳微球,以及连接所述碳微球的碳质连接体,所述碳质连接体将多个所述碳微球组装成粒径为10~200μm的不规则块体。该材料是由酚、醛和海藻酸钠反应后经过碳化活化过程形成,具有高强度和高振实密度的优势,用于制作超级电容器的电极,表现出较高的质量比电容和体积比电容。

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种氧化石墨烯上生长碳纳米片矩阵衍生碳纳米复合材料的制备方法

NºPublicación: CN109592676A 09/04/2019

Solicitante:

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Resumen de: CN109592676A

本发明涉及种氧化石墨烯上生长碳纳米片矩阵衍生碳纳米复合材料的制备方法。该方法包括:由氧化石墨烯、三聚氯氰和哌嗪通过溶液回流法得到具有矩阵结构的纳米复合材料前驱体,然后碳化。该方法设计简单,前驱体制备容易,步碳化制备得到具有矩阵结构的碳纳米复合材料,解决了传统碳材料结构单,易于团聚的问题。

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种改性氧化石墨烯、改性氧化石墨烯负载金纳米颗粒及其制备方法

NºPublicación: CN109590482A 09/04/2019

Solicitante:

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Resumen de: CN109590482A

种改性氧化石墨烯,所述改性氧化石墨烯是通过二硫苏糖醇修饰氧化石墨烯得到。同时发明还公开了改性氧化石墨烯的制备方法及利用所述的改性氧化石墨烯制备改性氧化石墨烯负载金纳米颗粒及其制备方法,本发明合成的改性氧化石墨烯负载金纳米颗粒,通过二硫苏糖醇(DTT)改性氧化石墨烯使其分散性更好,不易团聚,与修饰有双键的金纳米颗粒在紫外光照射下键合,使得金纳米颗粒可以很好的附着在改性氧化石墨烯上。

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种石墨烯复合气凝胶吸波材料及其制备方法和应用

Nº publicación: CN109573988A 05/04/2019

Solicitante:

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Resumen de: CN109573988A

本发明涉及种石墨烯复合气凝胶吸波材料及其制备方法和应用,由氧化石墨烯、改性剂和FeO@C纳米颗粒组成,具有三维网络结构。制备方法包括:(1)溶剂热法制得FeO;(2)FeO与聚合物单体搅拌反应得到包覆聚合物的FeO;(3)于惰性气氛下炭化处理,得到FeO@C;与改性剂超声分散于氧化石墨烯的乙醇分散液中,步醇热法即得。该材料无体积收缩,吸收强度高,有效吸收带宽,在K波段表现出优异的吸波性能,在通讯设备的电磁屏蔽、电磁安全防护领域具有广阔的应用潜力和市场前景。

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