73 results about "Carbon based nanomaterials" patented technology

The present disclosure relates to a carbon-based nanomaterial composition that may be formed from a gas mixture and a sulfur powder. The gas mixture may include a carbon based gas, an oxygen gas, and a hydrogen gas. The carbon-based nanomaterial composition may include sulfur doped nanospheres.

The invention relates to a solid electrolyte film and a preparation method thereof. The method comprises the following steps: uniformly dispersing a carbon-based nano material and a conductive and proton material in a polyvinylidene fluoride (PVDF) solution, and preparing the double-ion conductor solid electrolyte film with a nano pore channel structure through an electrostatic spinning and template method. In the preparation process, the voltage, the flow speed and the receiving distance are controlled, and the uniformity and the conductivity of the pore channel structure are ensured. The obtained film achieves good balance between high ion mobility and mechanical strength, and is suitable for high-performance energy storage equipment, such as a solid-state battery. The electrolyte film shows excellent electrochemical performance and long cycle life.

The invention discloses a method for predicting a composite biological effect of a carbon nanomaterial. The method comprises the following steps: measuring the growth inhibition toxicity of different types of carbon-based nanomaterials to scenedesmus obliquus in the presence of singly; the growth inhibition toxicity is calculated by taking the effect multiple change generated by a treatment group compared with a control group as a toxicity index; based on the obtained growth inhibition toxicity data, constructing an SEML prediction model through a support vector machine regression algorithm or an artificial neural network regression algorithm; and predicting the composite biological effect of the carbon nanomaterial according to the SEML prediction model. According to the method, the effect multiple change FC is adopted as a toxicity index, biotoxicity evaluation is more accurate, meanwhile, the prediction model is directly constructed based on growth inhibition toxicity data, material characteristic parameters of the carbon-based nano material do not need to be measured, and the modeling process is more convenient.

The invention relates to the technical field of intelligent pavements, in particular to a material for an intelligent pavement, a self-sensing and self-repairing intelligent pavement and an implementation method of the self-sensing and self-repairing intelligent pavement. The material for the intelligent pavement comprises a mixture of a matrix binding material, a self-sensing unit and a self-repairing unit, the mass of the self-sensing unit is 0.3%-1.5% of the mass of the matrix binding material, and the self-sensing unit is selected from at least one of a carbon-based nano material and short carbon fibers; the self-repairing unit comprises a microcapsule repairing agent and a shape memory fiber. The three-in-one framework of the intelligent surface layer, the induction monitoring network and the intelligent control system can realize self-sensing of the health state of the road surface; when a crack occurs at the position of the microcapsule, the microcapsule shell can be passively broken to release a repairing agent to fill the crack, and meanwhile, after a damage sign is found through self-sensing, the shape memory fiber can be triggered to actively repair.

The invention discloses a multifunctional composite coating with high photothermal conversion efficiency and a preparation method thereof, and belongs to the technical field of functional coating materials. The problems that an existing carbon-based photo-thermal material is large in reflection loss, poor in mechanical durability and single in function are solved. The coating is formed by compounding a zinc oxide microflower framework or a zinc oxide microflower-micro-nano particle multilevel structure framework, a carbon-based nano material attached to the surface of the framework and a surface modifier. The preparation method of the coating comprises the following steps: synthesizing zinc oxide microflowers by a hydrothermal method; the preparation method comprises the following steps: jointly dispersing the graphene oxide, a carbon material and a micro-nano material in a solvent containing a surface modifier to form a coating solution, finally spraying, brushing or spin-coating the coating solution on a substrate, and curing to obtain the composite material. The coating integrates the functions of efficient photothermal conversion, stable super-hydrophobicity, long-acting corrosion prevention and active anti-icing / deicing, has excellent mechanical strength and wear resistance, and is low in raw material cost, simple in process and suitable for large-scale preparation.

The invention provides fuel coal water slurry and a preparation method thereof. The fuel coal water slurry comprises pulverized coal, water, an additive and a carbon-based nano material modifier, the additive comprises a dispersant and a stabilizer, the carbon-based nano material modifier has a tubular structure or a layered structure, and the average pipe diameter or interlayer spacing of the carbon-based nano material modifier is smaller than the average pore diameter of the pulverized coal. Compared with fuel coal water slurry not containing the carbon-based nano material modifier, the coal water slurry can reduce the combustion temperature, inhibit mineral substance pyrolysis and generation of nitrogen oxides and carbon monoxide, thereby reducing the heat loss of coal combustion. The carbon-based nano-material modifier has a tubular structure or a layered structure, and compared with other ranges, the average pipe diameter or interlayer spacing of the carbon-based nano-material modifier is limited to be smaller than the average pore diameter of the pulverized coal, so that water can leave a coal particle pore structure and enter the carbon-based nano-material modifier, the volatilization temperature of the water in the combustion process is reduced, and the combustion efficiency is improved. Therefore, the calorific value of the fuel coal water slurry is improved.

Device and method for detecting reactive luminescent nano- or micro-particles embedded in a composite comprising a polymeric matrix with carbon-black or sulphur-black particles, or embedded in a sulphur-dyed substrate or surface, comprising: an infrared or ultraviolet illuminator for illuminating the luminescent particles; a near-infrared photodiode sensor for capturing a near-infrared response of the illuminated luminescent particles; a dark chamber for placing over the substrate or surface, inside which the illuminator and photodiode sensor are mounted; a logarithm amplifier for amplifying and linearizing a response signal captured by the photodiode sensor; an electronic data processor configured for detecting the reactive luminescent particles, by carrying out the steps of: illuminating the substrate or surface with the illuminator; acquiring the amplified linearized signal captured by the photodiode sensor; detecting the presence of luminescent particles in the composite or substrate or surface from the linearized decay of the acquired signal.

The invention discloses an ABS (Acrylonitrile Butadiene Styrene) composite material as well as a preparation method and application thereof. The ABS composite material is prepared from the following components in parts by weight: 87 to 99 parts of ABS resin, 0.5 to 5 parts of lanthanide oxide, 0.5 to 5 parts of liquid crystal polymer, 0.1 to 0.5 part of carbon nano tube, nano zinc oxide, organic dye molecules and a carbon-based nano material, the mass ratio of the nano zinc oxide to the organic dye molecules to the carbon-based nano material is (2-4): (3-5): (2-4); the total dosage of the nano zinc oxide, the organic dye molecules and the carbon-based nano material is 3-7 parts. According to the ABS composite material provided by the invention, the time required by laser marking is shortened, the definition of laser marking is improved, and the carbonization or yellowing phenomenon caused by local overheating of the surface of the material is avoided.

The present invention provides a CDs-loaded MIL-53(Fe)-NO2-type oxide nanozyme and its preparation method and application, which belong to the technical field of carbon-based nanomaterials. The present invention uses MIL-53(Fe)-NO2 as a carrier matrix, and through a one-step microwave method, carbon dots rich in nitrogen and oxygen functional groups are loaded into MIL-53(Fe)-NO2 to obtain CDs@MIL-53(Fe)-NO2-type oxide nanozymes. The preparation process of the present invention is simple and fast, which solves the problem that the existing CDs@MOFs-type oxide nanozymes do not have oxidase-like activity in the absence of external stimulation. The obtained CDs@MIL-53(Fe)-NO2 has excellent oxidase activity in the absence of external stimulation, and can be applied to the fields of biosensing, pharmaceuticals, food, antibacterial, environmental protection, etc., and can be further applied to the fields of bioanalysis and food safety.

The application relates to a solid electrolyte thin film and a preparation method thereof. The method comprises uniformly dispersing carbon-based nanomaterial and proton-conducting material in a polyvinylidene fluoride (PVDF) solution, and preparing a double-ion-conductor solid electrolyte thin film with a nano-pore channel structure through electrospinning and a template method. During the preparation process, the voltage, flow rate and receiving distance are controlled to ensure the uniformity of the channel structure and the conductivity. The obtained thin film achieves a good balance between high ion mobility and mechanical strength, and is suitable for high-performance energy storage devices, such as solid-state batteries. The electrolyte thin film shows excellent electrochemical performance and long cycle life.

The invention belongs to the field of preparation of graphene products, and particularly relates to preparation of modified graphene and graphene quantum dots and application of the modified graphene and the graphene quantum dots to fibers and films. As a novel carbon-based nano material, the graphene quantum dots have unique flexibility and ductility. The metal nanoparticles are utilized to modify the graphene, so that the mechanical property of the graphene is enhanced. And when the fiber and the film are applied to the fiber and the film, the flexibility of the fiber and the film is greatly improved, and meanwhile, the fiber and the film also have the biological functions of bacteria resistance, bacteriostasis, mildew prevention, mite removal, virus resistance, far infrared and the like.

The present disclosure relates to carbon-based nanomaterial compositions that can be formed from a gas mixture. The gas mixture has a molar ratio A mol / GM mol acetylene gas, a molar ratio of at least about 0.01 and not more than about 0.75 OG mol / GM mol oxygen gas, and a molar ratio H mol / GM mol The carbon-based nanomaterial composition has a carbon hybridization ratio P of at least about 0.0 and not more than about 5.0. sp3 / P sp2 (P sp3 is the percentage of carbon in the carbon-based nanomaterial composition that has sp3 hybridization, and P sp2 is the percentage of carbon in the carbon-based nanomaterial composition that has sp2 hybridization.

The invention discloses an immune microelectrode, an immune electrochemical sensor and a preparation method and application of the immune microelectrode and the immune electrochemical sensor. An immune microelectrode prepared by modifying a micron-level metal electrode wire with a carbon-based nano material and a plant hormone antibody is used as a working electrode, and the electrochemical sensor taking the working electrode as a substrate is used for detecting plant hormones in a plant tissue micro-area. A sensor based on the electrode shows good electrode stability in the process of detecting plant hormones in a plant tissue microcell, and the detection range is large. For other interfering substances such as auxin, salicylic acid and the like in a plant body, generated response signals are greatly different from the auxin and the salicylic acid or basically have no response signals, the electrode shows good specificity, and the method for rapidly detecting the plant hormones in the plant tissue microcell through the electrode is convenient and simple. On the basis of plant tissue micro-area detection, in-situ detection can be carried out on plants.

The invention discloses a nickel-based monatomic catalyst suitable for a glucose electrochemical sensor and preparation and application of the nickel-based monatomic catalyst. Bis (cyclopentadiene) nickel (II), melamine and a carbon-based nano material are mixed and ground uniformly, the mixture is dissolved in an organic solvent and magnetically stirred, and suspension passes through a rotary evaporator to obtain powder; and putting the obtained powder into a tubular furnace, calcining in non-reactive gas, acidizing and etching the obtained product by using an acid solution, and then centrifuging, washing and drying in vacuum to obtain the nickel-based monatomic catalyst. According to the nickel-based monatomic catalyst, nickel monatomic is attached to a carbon tube through the synergistic effect of nickel and nitrogen-doped carbon, the nickel-based monatomic catalyst has rich redox active sites, and reaction kinetics and electrocatalytic activity are enhanced. In glucose detection, the nickel-based monatomic catalyst material shows the sensitivity of 546.86 [mu] A / (mM.cm < 2 >), the detection limit of 0.24 [mu] M and the linear response range of 0.1-10 mM. The nickel-based monatomic catalyst provided by the invention has relatively high electrocatalytic activity, excellent selectivity, simple preparation method and low cost, and is suitable for large-scale production.

The invention relates to the field of chemistry, in particular to a novel passive anti-icing / deicing composite material and a preparation method thereof. The preparation method comprises the following steps: step 1, preparing an MOF-based porous carrier or a porous material / carbon-based nano composite material; step 2, loading a phase-change material, namely loading the phase-change material onto a porous carrier or a porous material / carbon-based nano material through vacuum impregnation to obtain a composite phase-change material; and 3, depositing a photo-thermal conversion material on the composite phase change material to prepare the photo-thermal conversion composite phase change material. According to the invention, the phase-change material is loaded on the porous carrier and is not easy to leak, and the photo-thermal conversion material and the carbon-based nano material are applied to the porous carrier, so that the novel passive anti-icing / deicing composite material is finally prepared. The material has the characteristics that the phase change material is not easy to leak and can be recycled, the photo-thermal conversion efficiency is high, the heat conductivity is good, the anti-icing / deicing effect is good, all-weather anti-icing / deicing is realized, and the material is green and environment-friendly.

The invention belongs to the field of electrothermal films, and particularly relates to an electric heating film and a preparation method thereof. The electric heating film provided by the invention comprises a release layer, a hot melt adhesive layer, a carbon-based nano material heating layer and a flexible insulating layer which are sequentially stacked, the carbon-based nano material heating layer contains a polymer matrix and a carbon-based nano material dispersed in the polymer matrix, and the carbon-based nano material comprises a carbon nano tube and a graphene microchip; a flexible electrode is arranged between the hot melt adhesive layer and the carbon-based nanometer material heating layer, and the flexible electrode and the carbon-based nanometer material heating layer form ohmic contact. According to the invention, the film layer structure and the components of each layer of the electrothermal film are optimally designed, so that the electrothermal film has good flexibility, infrared radiance and electricity-heat conversion efficiency; and the electrothermal film is integrated with the adhesive layer, so that the electrothermal film can be adhered and fixed after the release layer is torn off during use, an auxiliary fixing piece does not need to be additionally arranged, and the electrothermal film is more convenient to use.

The invention belongs to the technical field of heat storage materials, and particularly relates to a mixed nano fused salt material suitable for a high-temperature working condition as well as a preparation method and application of the mixed nano fused salt material. The mixed nano molten salt material is prepared by taking ternary carbonate composed of lithium carbonate, sodium carbonate and potassium carbonate as a matrix and introducing at least one kind of nano particles or a composite system of multiple kinds of nano particles, and the nano particles are selected from metal oxides, metal carbides, metal nitrides or carbon-based nano materials. The microstructure and interface characteristics of the ternary carbonate fused salt are regulated and controlled through the high specific surface area and the interface synergistic effect of the nano-particles, so that the specific heat capacity, the heat-conducting property and the photo-thermal conversion capacity of the ternary carbonate fused salt are remarkably improved, and the high-temperature cycling stability of the ternary carbonate fused salt is improved. According to the mixed nano fused salt material, on the premise that the original working temperature interval is basically unchanged, synergistic enhancement of multiple thermophysical properties is achieved, and the mixed nano fused salt material has excellent heat absorption and storage performance and long-term operation stability. The preparation method is simple in process and high in repeatability, and the obtained mixed nano fused salt material is suitable for integrated application of high-temperature heat storage and heat absorption in a concentrating solar power generation system and has a good engineering application prospect.

The invention relates to a sunscreen fiber, a preparation method thereof and a radiation refrigeration fabric. The sunscreen fiber comprises a core layer and a skin layer coating the surface of the core layer, wherein the core layer comprises a carbon-based nano material, the skin layer comprises radiation refrigeration particles, the absorptivity of the carbon-based nano material to sunlight at the wave band of 0.3-2.5 microns is a, the mass fraction of the carbon-based nano material in the core layer is m1, the atmospheric window emissivity of the radiation refrigeration particles at the wave band of 8-13 microns is b, and the sunlight reflectivity of the radiation refrigeration particles at the wave band of 0.3-2.5 microns is c, the mass fraction of the radiation refrigeration particles in the skin layer is m2, and a, b, c, m1 and m2 meet the following condition that c is larger than or equal to 88%. The sunscreen fiber has excellent sunlight total spectrum reflection performance and shading performance, and the radiation refrigeration fabric prepared from the sunscreen fiber as a raw material has extremely low sunlight transmittance, so that a better radiation refrigeration effect can be achieved.

The invention provides a preparation method of a carbon-based nano material for improving salt tolerance of wheat, which comprises the following steps: ultrasonically and uniformly mixing a sulfur-containing biomass carbon source material, a strong oxidant and an alkaline solution in deionized water to obtain a mixed solution, carrying out hydrothermal reaction on the mixed solution, and cooling to room temperature after the reaction to obtain a reaction solution; and sequentially filtering and dialyzing the reaction liquid to obtain the carbon-based nano material D-CDs. The invention also provides application of the carbon-based nano material prepared by the preparation method, the carbon-based nano material is applied to pre-seed soaking of wheat before sowing, and the stress resistance of the wheat under a high-salt growth condition is improved. The preparation process of the carbon-based nano material is simple and easy to control, the raw material cost is low, the carbon-based nano material is biologically friendly, and an effective solution is provided for relieving germination of wheat in a high-salt environment.

The present disclosure relates to a carbon-based nanomaterial composition that may be formed from a gas mixture. The gas mixture may include acetylene gas at a molar ratio AGmol / GMmol of at least about 0.55 and not greater than about 0.99, oxygen gas at a molar ratio OGmol / GMmol of at least about 0.01 and not greater than about 0.75, and hydrogen gas at a molar ratio HGmol / GMmol of at least about 0.05 and not greater than about 0.90. The carbon-based nanomaterial composition may have a carbon hybridization ratio Psp3 / Psp2 of at least about 0.0 and not greater than about 5.0, where Psp3 is the percent of carbon within the carbon-based nanomaterial composition having a sp3 hybridization and Psp2 is the percent of carbon within the carbon-based nanomaterial composition having a sp2 hybridization.

This invention provides biomass carbon / metal oxide nanoparticles and their preparation method, as well as carbon-based nanomaterial emulsifiers and their applications. The preparation method of the biomass carbon / metal oxide nanoparticles includes: sequentially drying, carbonizing, and pulverizing biomass loaded with metal oxide precursors. The biomass carbon / metal oxide nanoparticles of this invention have strong emulsifying properties, low raw material costs, require no surface modification, have a simple preparation process, are highly practical, and are easy to promote and use. The carbon-based nanomaterial emulsifier containing biomass carbon / metal oxide nanoparticles can enhance the emulsifying ability of nanocomposite oil displacement systems, achieve efficient oil washing and emulsification diffusion, and solve the problem of poor emulsification and oil displacement effect in composite oil displacement systems under alkali-free conditions. This is of great significance for the efficient development of medium- and low-permeability reservoirs.

The present disclosure relates to a carbon-based nanomaterial composition that may be formed from a gas mixture. The gas mixture may include acetylene gas at a molar ratio AGmol / GMmol of at least about 0.55 and not greater than about 0.99, oxygen gas at a molar ratio OGmol / GMmol of at least about 0.01 and not greater than about 0.75, and hydrogen gas at a molar ratio HGmol / GMmol of at least about 0.05 and not greater than about 0.90. The carbon-based nanomaterial composition may have a carbon hybridization ratio Psp3 / Psp2 of at least about 0.0 and not greater than about 5.0, where Psp3 is the percent of carbon within the carbon-based nanomaterial composition having a sp3 hybridization and Psp2 is the percent of carbon within the carbon-based nanomaterial composition having a sp2 hybridization.

The present disclosure relates to a carbon-based nanomaterial composition and methods of forming the same The carbon-based nanomaterial may be formed from a gas mixture and a boron powder. The gas mixture may include a carbon-based gas, an oxygen gas, and a hydrogen gas. The carbon-based nanomaterial composition may include boron doped nanospheres.

Described herein are carbon-based nanomaterial compositions that may be formed from a gas mixture and a silicon dioxide powder. The gas mixture may include a carbon-based gas, an oxygen gas, and a hydrogen gas and the resultant carbon-based nanomaterial compositions include silicon dioxide doped nanospheres.

The application discloses a Enteromorpha-based high-dispersed iron atom modified carbon-based nanomaterial and a preparation method and application thereof, and belongs to the field of biological comprehensive utilization and marine environmental pollution treatment. The Enteromorpha biomass is high-temperature calcined in an inert atmosphere at >700 DEG C, the obtained material is mixed with graphite-type carbon nitride, the mixed material is uniformly mixed, and the Enteromorpha-based high-dispersed iron atom modified carbon-based nanomaterial is obtained by heat treatment at 300-500 DEG C for 1-3 hours. The preparation method is simple and efficient, saves time and effort, is environment-friendly and energy-saving, solves the problems of low utilization rate of Enteromorpha and environmental pollution, greatly expands the application range of the graphite-type carbon nitride material g-C3N4, improves the degradation efficiency of herbicides, and for atrazine, the degradation efficiency can reach nearly 80% in 10 minutes, and the degradation rate is 0.13112 min ‑1 , which is 4.39 times of the degradation rate of g-C3N4.

The present disclosure relates to carbon-based nanomaterial compositions that can be formed from a gas mixture. The gas mixture has a molar ratio AG of at least about 0.25 and no greater than about 0.99. mol / GM mol acetylene gas, a molar ratio of at least about 0.01 and not more than about 0.50 OG mol / GM mol of oxygen gas, a molar ratio of H mol / GM mol of hydrogen gas, and a molar ratio MG of at least about 0.25 and not more than about 0.99. mol / GM mol The carbon-based nanomaterial composition may include methane gas having a carbon hybridization ratio P of at least about 0.0 and not more than about 5.0. sp3 / P sp2 P sp3 is the percentage of carbon in the carbon-based nanomaterial composition that has sp3 hybridization, and P sp2 is the percentage of carbon in the carbon-based nanomaterial composition that has sp2 hybridization.

The invention relates to the technical field of environmental engineering, and particularly discloses a method and device for sealing and storing high-alkalinity residues for capturing carbon dioxide, and the method comprises the following steps: S1, capturing carbon dioxide: capturing carbon dioxide from air by adopting an efficient adsorbent, the adsorbent is selected from one or more combinations of a carbon-based nano material (such as a carbon nano tube and graphene), a molecular sieve, a metal organic framework material (MOFs), a porous organic polymer (POPs) and an electrified adsorbent; s2, pretreatment of high-alkalinity residues: screening the residues with high-alkalinity characteristics as a basic material of concrete, and carrying out necessary pretreatment on the high-alkalinity residues; according to the invention, the high-efficiency adsorbent is utilized to capture carbon dioxide from air, and the carbon dioxide and high-alkalinity residues are mixed and reacted to prepare the concrete, so that long-term storage of carbon dioxide is realized, greenhouse gas emission is effectively reduced, and the cured concrete has excellent mechanical properties and durability, and has relatively high economic value and social benefit.

The invention relates to a fuel-free low-temperature oxygen candle oxygen-producing flux core which is prepared by uniformly dry-mixing 96-98 wt% of a chlorate oxygen-producing source, 1-2.5 wt% of a catalyst, 0.1-1 wt% of a chlorine inhibitor and 0.1-0.5 wt% of a high-thermal-conductivity carbon-based nano material as raw materials and pressing the raw materials, and the density of the oxygen-producing flux core is 1.9-2.5 g / cm < 3 >. The oxygen-producing flux core adopts a fuel-free formula, can realize continuous and stable combustion in a low-temperature environment of-50 DEG C until oxygen release is finished, and is high in safety, high in reliability, low in heat production, stable in oxygen release and free of chlorine in released gas.

The application discloses a warm-keeping fabric with passive radiation and photoelectric heating and a preparation method thereof. The warm-keeping fabric is knitted by a composite fabric fiber structure, and the composite fabric fiber structure comprises a fabric base, an adhesive adsorbed on the surface of the fabric base, a porous metal hydroxide layer with the functions of heat insulation and passive radiation warm-keeping, and a carbon nanomaterial layer with the functions of passive radiation and photoelectric heating, wherein the porous metal hydroxide layer is located between the carbon nanomaterial layer and the adhesive. The method comprises the following steps: fabric base pretreatment, hydrothermal treatment of the fabric base containing the adhesive, and surface treatment of the fabric base containing the porous metal hydroxide layer and the adhesive. The application realizes firm combination of the metal hydroxide and the carbon-based nanomaterial with the fabric, and the metal hydroxide and the carbon-based nanomaterial are uniformly and densely distributed on the surface of each fiber without damaging the fiber itself and the porous structure of the fabric, so that the warm-keeping performance of the fabric is improved.

The application relates to a preparation method of a material for regulating the electromagnetic wave absorption frequency of single atoms, and belongs to the electromagnetic wave absorption field. The scheme comprises the following steps: step I: synthesizing a metal organic framework M-PCN-222 by adopting a solvothermal method; step II: pyrolyzing the M-PCN-222 obtained in step I into a single atom loaded carbon-based microrod composite material; and step III: compounding the single atom loaded carbon-based microrod composite material M-N-C / ZrO2 obtained in step II with a high polymer polymer PVDF, and preparing a composite material by adopting an ultrasonic method. The scheme has the advantages of simple operation and large-scale production potential. The obtained composite wave absorbing material can not only maintain the advantages of light weight and corrosion resistance of carbon-based nanomaterials, but also overcome the shortcomings of high density, easy aggregation and narrow absorption frequency band of single ferromagnetic materials by means of uniform distribution of single atoms.