116 results about "Carbon Nanoparticles" patented technology

The invention relates to the technical field of semiconductor material preparation, and provides a TaC composite coating process based on a carbon nanostructure transition layer and a product thereof. The method comprises the following steps: a) pretreating the surface of a base material to form a groove, b) introducing a carbon source gas, carrying out first chemical vapor deposition under the action of a metal salt catalyst to grow carbon nanoparticles, and depositing the base material pretreated in the step a) to obtain a transition layer deposition base material, c) gasifying a tantalum source, mixing the gasified tantalum source with the carbon source gas, a reaction gas and a carrier gas, and carrying out second chemical vapor deposition to obtain the transition layer deposition base material. And second chemical vapor deposition is conducted, the transition layer deposition base material is filled with the fine grain particle layer, then deposition continues to be conducted on the surface of the transition layer deposition base material to form the coarse grain particle layer, and finally the TaC composite coating is obtained. According to the method, the compactness of the coating can be improved, the bonding strength of the coating and the base material is enhanced, the performance of the TaC composite coating is improved, the service life of the TaC composite coating is prolonged, and the reliability of the TaC composite coating is improved.

The invention relates to a material component adjustable and controllable additive manufacturing process based on laser powder bed melting, which comprises the following steps: S1, determining a component gradient path of a printing material from a workpiece matrix area to a strengthening area according to a preset workpiece three-dimensional model; s2, after matrix powder is laid layer by layer according to the component gradient path in the S1, a carbon nanoparticle solution is sprayed in a strengthening area; s3, carrying out L-PBF treatment in the matrix area by adopting a high scanning speed and a low power parameter, and carrying out L-PBF treatment in the strengthening area by adopting a low scanning speed and high power, so that the matrix powder and the carbon nanoparticles form metallurgical bonding; and S4, the steps S2 and S3 are repeated till forming, and a workpiece is obtained through aftertreatment. The method has the advantages of high component control precision, high material utilization rate and capability of realizing a complex functional gradient structure.

The application provides a biomass-based hard carbon composite negative electrode material with high capacity and high initial efficiency, and a preparation method and application thereof. The biomass-based hard carbon composite negative electrode material has high capacity and high initial efficiency, and also has excellent cycle performance. AlCl3 and SnCl4 are added into molten pitch, and AlCl3 and SnCl4 react with water in the pitch to generate nano Al2O3 particles and nano SnO2 particles, thereby obtaining modified pitch. After the modified pitch is prepared into a solution, the modified pitch can be filled into pores of a hard carbon precursor and form a coating layer on a surface of the hard carbon precursor in the process of impregnation of the hard carbon precursor. In a high-temperature carbonization process, the hard carbon precursor is converted into hard carbon, nano SnO2 is reduced into nano Sn particles by carbon, and pitch is converted into amorphous carbon. The nano Sn particles, the amorphous carbon and the nano Al2O3 particles are uniformly distributed in pores and on a surface of the hard carbon, and synchronous modification of the inside and the surface of the hard carbon is realized.

The invention discloses nano composite hydrogel modified silica gel as well as a preparation method and application thereof. The method comprises the following steps: (1) preparing carbon nanoparticles; (2) preparing a polyvinyl alcohol aqueous solution and a pre-polymerized solution of carbon nanoparticles and hydrogel; (3) preparation of nano-composite hydrogel modified silica gel: adding the pre-polymerized liquid and silica gel into the polyvinyl alcohol aqueous solution under stirring, adding an initiator, carrying out hot bath, carrying out condensation reflux in an inert atmosphere for reaction, and then adding a polyvinyl alcohol cross-linking agent and an HCl aqueous solution for reaction; and after the reaction is finished, centrifugally washing and drying to obtain the nano-composite hydrogel modified silica gel. The nano-composite hydrogel modified silica gel has excellent hydrophilicity, can be used as a hydrophilic mode liquid chromatography filler, and has great development space and application potential in the field of chromatographic separation and analysis.

The present invention relates to single-crystal spherical carbon nanoparticles that are single-crystals, are spherical, and have an average particle diameter of 1 nm to 30 nm. The single-crystal spherical carbon nanoparticles of the present invention can generate fluorescence with a high fluorescence quantum efficiency when excited by a light in wide wavelength range from ultraviolet light to visible light, and have fluorescence quantum efficiency of 10% or more compared to conventionally known carbon nanoparticles. The single-crystal spherical carbon nanoparticles can be used for drug delivery, because they do not have toxicities to living organisms that compound semiconductors made of cadmium, selenium, tellurium, and the like have. Furthermore, since the single-crystal spherical carbon nanoparticles are spherical, they can be densely packed as electrode materials for solar cells and secondary ion batteries, and can be used for negative electrode for lithium ion batteries or electrode material for solar cells.

An electroluminescent device includes a first electrode and a second electrode, which are spaced apart from each other (e.g., facing each other), and an emission layer disposed between the first electrode and the second electrode. The emission layer is configured to emit first light having a predetermined peak emission wavelength, and includes a semiconductor nanoparticle and a carbon nanoparticle. The carbon nanoparticle has a dimension of greater than or equal to about 2 nm and less than or equal to about 50 nm.

To provide a structure having a dense carbon film. [Solution] A structure comprising a conductive substrate and a carbon film on the surface of the conductive substrate, wherein the carbon film includes an aggregate of carbon nanoparticles, and the carbon nanoparticles are made of amorphous carbon.

The invention belongs to the field of electrochemical detection, and particularly relates to an integrated monolithic electrode adhered by a functional membrane, a preparation method and application of the integrated monolithic electrode in metal ion detection. The integrated monolithic electrode is characterized in that a working electrode, an auxiliary electrode and a reference electrode are integrated on a chip, the working electrode is the integrated monolithic electrode bonded by the functional membrane, the surface of a matrix electrode is modified, and the surface of the matrix electrode is coated with a coating; the modification material is one or more of carbon nanoflowers with a porous cage-shaped structure, metal nanoparticles and an enhanced electron conduction film. According to the invention, a working electrode in an integrated monolithic electrode is used as a substrate electrode, and the surface of the working electrode is cooperated with carbon nanoparticles and gold nanoparticles with porous cage structures through a functional film, so that a sensing system with excellent interface characteristics is constructed, and the sensor has the advantages of high sensitivity and high stability.

The present disclosure relates to a negative electrode for a lithium secondary battery and a lithium secondary battery including same. According to an embodiment of the present disclosure for solving technical problems, the negative electrode for a lithium secondary battery includes a negative electrode current collector and a composite layer disposed directly on the negative electrode current collector, and the composite layer may include a polymer, carbon nanoparticles, and insulating particles.

The invention relates to the technical field of nano-particle preparation, and discloses preparation and application of a hollow porous yolk shell structure silicon-carbon nano-composite material. According to the hollow porous yolk shell structure silicon-carbon nano-particle provided by the invention, a silicon nano-sphere is used as a core, and a hollow layer between a carbon shell layer and the core is based on a carbon-coated porous channel; the volume change of the silicon nanoparticles in the charging and discharging process is fully released, and the mechanism stability of the electrode material is kept; meanwhile, the hollow structure and the porous structure are beneficial to de-intercalation migration of lithium ions in the silicon nanoparticles, and the rate capability is increased; in addition, the carbon coating layer can avoid direct contact between the silicon nanoparticles and an electrolyte, so that the electronic and ionic conductivity of the material is ensured, and the first coulombic efficiency is improved. When the carbon-silicon composite material prepared by the method is used as a negative electrode, the battery capacity is relatively high, and the rate capability is relatively long.

A method of preparing an enhanced oil recovery composition is described. The method includes carbonizing a waste plastic material to provide carbon microparticles, functionalizing the carbon microparticles with a SO3-containing gas such that the carbon microparticles have a hydrophilic surface, and grinding the carbon microparticles to provide carbon nanoparticles. The carbon nanoparticles have a hydrophilic surface and a hydrophobic surface. A method of enhanced oil recovery is also described.

The invention relates to the technical field of rock slice detection, and particularly discloses a rock slice positioning detection method combining multiple in-situ test instruments, which comprises the following steps: preparing a sample, slicing a rock sample to be detected, and transversely cutting the original sample into two parts to form a transverse section I and a transverse section II which completely correspond to each other in position and size, the parallelism error of the two sections is less than or equal to 50 microns, and the area difference is less than or equal to 1 Instrument calibration: designing a general sample table, and calibrating a plurality of in-situ test instruments by matching an SEM (scanning electron microscope), an AFM (atomic force microscope), a Raman spectrometer and micro-area X-ray fluorescence equipment; platinum and carbon nano-particle marks (the precision is smaller than 100 nm) deposited through electron beam induction are fixed to the edge of the thin sheet through an atomic-scale combination technology, compared with traditional micron-scale marks (the error is larger than 1 micron), the positioning precision is improved by 10 times or above, and nano-scale view fields of TEM and SEM instruments can be accurately matched.

The purpose of this invention is to synthesize a carbon dot-based nanozyme and its cascade detection application. Using ascorbic acid and 1,3,5-pyromellitic acid as raw materials, ethylenediamine as a nitrogen dopant, and ferric chloride as a metal source, a one-step microwave synthesis method is employed in a microwave reactor (glass material). This method solves the problem of high energy consumption caused by the need for high temperature, high pressure, or long reaction time in existing technologies. Characterization and analysis of its morphology, structure, and properties revealed that the prepared iron-nitrogen co-doped carbon dot-based nanozyme consists of two-dimensional spherical carbon nanoparticles with excellent Fe-N... x The active site exhibits POD-like enzyme activity, with catalytic activity exceeding that of most reported nanozymes. Furthermore, this invention synergistically utilizes its peroxidase-like catalytic activity and photodynamic effect to significantly enhance reactive oxygen species (ROS) generation, achieving highly sensitive detection of organophosphorus pesticides and significantly reducing their detection limits. This synergistic strategy provides a new approach for expanding the application of nanomaterials in chemical analysis and sensing.

The invention provides liquid compositions comprising conductive carbon particles and / or carbon nanoparticles, a thickening agent, and a solvent. The carbon nanoparticles are preferably a mixture of graphite nanoplatelets and carbon nanotubes and the thickening agent is preferably a cellulose derivative. The liquid compositions can be used as ink to print highly conductive films that adhere to paper substrates.

The present invention belongs to the field related to phase change materials, and specifically relates to a high thermal conductivity and high phase change enthalpy carbon nanocomposite phase change microcapsule and its preparation method. The present invention uses flaky graphene oxide as a dispersant to form a water-in-oil Pickering emulsion with graphene oxide as the interface, and adds an initiator to the aqueous phase to polymerize the aniline monomer and the cross-linking monomer in the oil phase at the interface of the Pickering emulsion to form a network polymer layer to fix the capsule thermal conductive particle shell. The microcapsule shell is composed of thermal conductive polymer cross-linked polyaniline and thermal conductive particle graphene oxide. The diameter of the thermal conductive carbon nanoparticles first dispersed in the alkane phase change material is equivalent to the diameter of the capsule, and a thermal conductive path supporting the skeleton structure is formed in the confined space inside the microcapsule, thereby improving the thermal conductivity of the microcapsule. It has the characteristics of high thermal conductivity and high phase change heat storage capacity, and can be applied to renewable energy storage, new energy vehicle thermal management, industrial waste heat utilization, aerospace engineering and other fields.

The application provides a kind of carbon nanoparticles-based tidal power generation device, and relates to the technical field of tidal power generation, comprising: floating foundation platform and power generation unit, the floating foundation platform includes base, buoyancy bucket, support rod, power generation unit slot and rotation control system;The base is hollow cuboid, the base is internally provided with rotation control system, the rotation control system is connected with several support rods, a plurality of power generation unit slots are provided on each support rod, the base is connected with buoyancy bucket on both sides through clamping groove, and the base rear side is provided with locking mechanism;The power generation unit is arranged in the power generation unit slot, and the power generation units on each support rod are connected in series with the power generation units on another row in series or parallel connection after being connected in series with each other.The application has the characteristics of low cost and simple preparation, and the formed tidal power generation device can realize stable power output.

The application discloses a composite material based on interface-enhanced glass hollow microspheres and a preparation method thereof, wherein the composite material comprises a resin matrix and composite glass hollow microspheres doped in the resin matrix, and the density of the composite material is 0.2-1.0 g / cm ‑3 . The composite glass hollow microspheres are composed of glass hollow microspheres and carbon nanoparticles modified on the surfaces of the glass hollow microspheres. In the composite material, the glass hollow microspheres modified with the carbon nanoparticles optimize the hollow surface structure of the microspheres, improve the wettability with the polymer resin matrix, repair the defects on the surfaces of the microspheres, and enhance the strength of the microspheres. In addition, the carbon nanoparticles in the composite glass hollow microspheres play a reinforcing role at the interfaces of the microspheres. The above factors together make the composite material have more excellent mechanical properties and stability.

The invention relates to an electrode layer (3, 4) for a PEM fuel cell (100), comprising a plurality of first electrode regions (30a) and a plurality of second electrode regions (30b). The first electrode regions (30a) have first carbon nanoparticles (31a), first catalyst elements (32a), and a first ionomer (33a), and the second electrode regions (30b) have second carbon nanoparticles (31b), second catalyst elements (32b), and a second ionomer (33b). The electrode layer (3, 4) defines an imaginary plane xy, and the electrode regions (30a, 30b) extend in the thickness direction z of the electrode layer (3, 4). The first electrode regions (30a) and the second electrode regions (30b) are situated next to one another so as to be mixed on the plane xy. The first electrode regions (30a) and the second electrode regions (30b) differ with respect to at least one of the components, i.e. the carbon nanoparticles (31a, 31b), the catalyst elements (32a, 32b), or the ionomers (33a, 33b).

A method of preparing an enhanced oil recovery composition is provided. The method includes carbonizing (200) a waste carbon material (202) to provide carbon microparticles (208) having a hydrophobic surface (404), functionalizing (300) the carbon microparticles (208) with an alkaline solution (302) such that the carbon microparticles (208) have a hydrophilic surface (306), and grinding (400) the carbon microparticles (208) to provide carbon nanoparticles (406). The carbon nanoparticles (406) have a hydrophilic surface (306) and a hydrophobic surface (404). The method may further include mixing the carbon nanoparticles with an aqueous based fluid to provide an enhanced oil recovery fluid.

The present disclosure provides a protective enclosure for electronic systems integrating two key components: a preconfigurable polymer matrix and a tunable metamaterial. The polymer matrix forms a lightweight, structurally robust foundation with excellent mechanical properties and design flexibility, configurable for specific application requirements. Integrated within this matrix is a highly adaptable metamaterial system, precisely tunable to interact with electromagnetic energy in customized ways. By adjusting its permittivity and permeability, the metamaterial can selectively repel or absorb specific frequencies of electromagnetic radiation, allowing targeted shielding against harmful interference while permitting desired communication signals to pass through. This integration overcomes limitations of traditional electromagnetic shielding approaches, offering enhanced design flexibility and customization for various electronic applications. The use of carbon nanoparticles enables fine-grained control over the metamaterial's electromagnetic properties, creating protective enclosures that effectively manage electromagnetic energy while remaining lightweight and mechanically robust.

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.

The application discloses a preparation method of high-strength and high-ductility titanium-based composite material with a composition gradient, and comprises the following steps: 1, material selection: selecting a plurality of Mo equivalent different beta type titanium alloy powder as a matrix material, and selecting carbon nanoparticles as a precursor material of a reinforcing body; 2, powder mixing: placing the plurality of Mo equivalent different beta type titanium alloy powder and the carbon nanoparticles in a ball mill and ball milling and uniformly mixing; 3, forming: performing plasma sintering forming on the mixed powder; 4, heat treatment: performing solid solution treatment on a titanium-based composite material blank to obtain the high-strength and high-ductility titanium-based composite material with the composition gradient. The application utilizes a powder metallurgy method to sinter the plurality of Mo equivalent different beta type titanium alloy powder and the carbon nanoparticles into a bulk alloy, so that the sintered bulk alloy has the composition gradient, and the prepared titanium-based composite material with the composition gradient has excellent mechanical properties and is a high-strength and high-elongation composite material.

A self-supporting dehumidifying porous material is comprised of a backbone polymeric matrix optionally with graphitic nanomaterials dispersed throughout. The backbone polymeric matrix can be a reversible hydrogel. The macroporous material can be used as a dehumidifying material for reducing energy consumption in air conditioning / climate control units. Common graphitic nanomaterials are electrically conductive, such as conductive carbon nanoparticles, carbon nanotubes, or graphitic nanofibers.

The present disclosure provides a protective enclosure for electronic systems integrating two key components: a preconfigurable polymer matrix and a tunable metamaterial. The polymer matrix forms a lightweight, structurally robust foundation with excellent mechanical properties and design flexibility, configurable for specific application requirements. Integrated within this matrix is a highly adaptable metamaterial system, precisely tunable to interact with electromagnetic energy in customized ways. By adjusting its permittivity and permeability, the metamaterial can selectively repel or absorb specific frequencies of electromagnetic radiation, allowing targeted shielding against harmful interference while permitting desired communication signals to pass through. This integration overcomes limitations of traditional electromagnetic shielding approaches, offering enhanced design flexibility and customization for various electronic applications. The use of carbon nanoparticles enables fine-grained control over the metamaterial's electromagnetic properties, creating protective enclosures that effectively manage electromagnetic energy while remaining lightweight and mechanically robust.

The invention relates to a bituminous composition comprising at least one bitumen base and at least one electrically conductive filler, preferably selected from carbon nanoparticles. The invention also relates to the uses of said bituminous composition in the fields of road and airport infrastructure, and / or waterproofing membranes, as well as for surface de-icing and the thermal preconditioning of electric vehicle batteries.

The invention provides a preparation method of a light-absorbing composite material with a micro-nano porous pyramid structure, which comprises the following steps: preparing a metal flat plate of which the surface part is full of pyramids as a template, coating a carbon nano polymer mixed prepolymer on the template, putting the coated template into a pressurizing container, curing, and demolding, thereby obtaining the light-absorbing composite material with the micro-nano porous pyramid structure. The light absorption composite material with the micro-nano porous light absorption structure on the surface is obtained. The surface of the obtained material has a smooth and fine micro-nano porous pyramid structure with good matching degree with a template. When being used as a light-absorbing material, the material has high light-absorbing efficiency. And during a BRDF test, the composite material always keeps a relatively low BRDF value.

A working electrode includes an outer layer including carbonized date palm frond carbon nanoparticles having a particle size of less than 100 nanometers (nm), single-wall carbon nanotubes (SWCNTs), and a polyvinylidene fluoride binder. The working electrode further includes a graphite substrate on which the outer layer is disposed. The ID / IG ratio of the electrode measured in the Raman spectrum is 2.0 or greater.

The invention discloses a carbon nano molecular probe as well as a preparation method and application thereof, and belongs to the technical field of chemical biology. The carbon nano-molecular probe comprises carbon nano-particles, wherein the surfaces of the carbon nano-particles are connected with polypeptide, and the nitrogen end of the polypeptide is connected with fluorescent molecules. The nano-scale passive diffusion and fluorescence quenching properties of the carbon nano-particles are utilized, a polypeptide sequence which can be subjected to specific enzyme digestion and is labeled by specific fluorescence can be connected to the surfaces of the carbon nano-particles, molecular imaging is performed in immune cells, the biochemical environment and the curing state in the immune cells are monitored in real time, and cellular level immune drug screening is performed. The important application value is realized.

A method of preparing an enhanced oil recovery composition is described. The method includes carbonizing a waste plastic material to provide carbon microparticles, functionalizing the carbon microparticles with a SO3-containing gas such that the carbon microparticles have a hydrophilic surface (205), and grinding the carbon microparticles to provide carbon nanoparticles (106). The carbon nanoparticles (106) have a hydrophilic surface (205) and a hydrophobic surface (207). A method of enhanced oil recovery is also described.

The invention relates to a preparation method of a composite bipolar plate for a zinc-bromine flow battery, and belongs to the technical field of preparation of composite bipolar plates for flow batteries. Titanium carbide is used as a main conductive filler, and titanium carbide in a stacked state is dispersed into a single-layer structure under the action of high-frequency pressure generated by cavitation of a mixed solution of tetrahydrofuran and deionized water. Based on strong interface interaction among titanium carbide, carbon nano particles and fluorine-containing polymer, uniform dispersion of titanium carbide, carbon nano particles and fluorine-containing polymer in a polymer matrix is realized. A polymer layer on the surface of the bipolar plate is swelled by adopting a cosolvent and supercritical carbon dioxide, and the swelled polymer layer is taken out and a carbon material in the bipolar plate is exposed in a subsequent supercritical carbon dioxide high-speed jet cleaning process, so that the interface contact resistance is reduced, and the performance of the bipolar plate is improved.