30results about How to "Realize large-scale production applications" patented technology

The invention belongs to the technical field of building materials and particularly relates to low-shrinkage, low-viscosity and ultrahigh strength concrete. Based on a single formula proportional dosage, the low-shrinkage, low-viscosity and ultrahigh strength concrete comprises the following components by weight: 250-300kg of cement, 120-180kg of microspheres, 90-120kg of mineral powder, 820-860kg of machine-made sand, 950-1000kg of gravels, 7-11kg of a water reducer and 115-125kg of water. The components are mixed with stirring for 1.5-2 minutes to obtain a concrete mixture. The concrete provided by the invention is less in binding material use, the total shrinkage percentage is less than (0.03-0.04per mill), the emptying time of an inverted slump cone is 5-10 seconds, the viscosity of mortar in same proportion is 20-28 Mp.s, the 28d compressive strength is 110-130MPa, and the 56d compressive strength is 120-135MPa. The concrete has the characteristics of being low in bonding material use, short in stirring time, excellent in working performance and low in comprehensive cost, and can be produced on a large scale and has a broad application prospect.

The invention belongs to the technical field of solar cells and specifically discloses a planar heterojunction perovskite solar cell and a preparation method thereof. The planar heterojunction perovskite solar cell comprises a transparent conductive electrode, an electron transmission layer, a perovskite luminous absorption layer, a cavity transmission layer and a method electrode in sequence from down to up. The electron transmission layer is a TiO2 compact layer. The perovskite luminous absorption layer is made of a chloride-ion-doped perovskite material. According to the invention, a TiO2 mesoporous layer in a conventional sensitized solar cell is rejected, and the device structure and the preparation technology are simplified; the chloride-ion-doped perovskite material is used as the luminous absorption material, the film forming ability of a film is improved, and the diffusion and separation of carriers are facilitated; aimed at the processing of the transparent conductive electrode and the TiO2 compact layer, an oxygen plasma processing technology is provided, and the film forming effect is improved; and aimed at the thickness control problem of the perovskite luminous absorption layer, a layer-by-layer spin coating technology is adopted, and the photoelectric performance of the luminous absorption layer and the integral cell is regulated and controlled.

The invention discloses a method for breeding aphidius gifuensis within a short cycle. The method comprises the steps of: host plant cultivation, pest species breeding, and aphidius gifuensis large-scale breeding. A breeding cycle of the whole process is 29-40 days. Each dish of brassica chinensis can breed more than 12000 of aphidius gifuensis, a parasitism rate of the aphidius gifuensis is 95%, a formation rate of stiff aphids is 60%, and stiff aphids of the aphidius gifuensis in each dish can be used for controlling 10-15 mu of aphid-damaged farmland. Brassica chinensis of a vegetable variety is adopted as a host plant with high strong adaptability and fast growth; and the brassica chinensis a host plant variety with a shortest cultivation cycle in current breeding technology of sphidius gifuensis, thereby reducing a breeding cycle of the aphidius gifuensis, and improving breeding efficiency of the aphidius gifuensis. The method adopts a flotation breeding method for cultivating the host plant, is simple in process step and solves the problems such as high breeding energy consumption, a tedious technical process, poor activity of the aphidius gifuensis, and irregular formation of the stiff aphids of the aphidius gifuensis, and can increases a utilization rate of the aphidius gifuensis for wide application in agriculture and forestry industry, thereby enabling the aphidius gifuensis to have better feasibility of production, promotion, and application.

The invention belongs to waste resource recycling and non-point source pollution control technology in the resource and environment technology field, and particularly relates to a preparation method and a usage of a mineral stabilize. The mineral stabilizer is prepared by mixing red mud which is generated by the residue extracted by bauxite from alumina industrial production and is used as the main raw material and fly ash (or phosphogypsum) in certain proportion. The mineral matter solid stability agent in a certain proportion is blended into dredged sediment, then the mixture is stirred and stockpiled for a while. By processing dredged sediment according to the method, release of phosphor and heavy metals in the dredged sediment can be controlled so as not to pollute the surrounding water. The technology of the invention solves the present problem that phosphor and the heavy metal release in the dredged sediment causes the secondary pollution in the sediment dredging engineering implementation process. The method is simple and easy to do, has high managing efficiency, low managing cost, and provides a effective solving approach with preventing and controlling phosphor and heavy metal release in dredged sediment.

The invention discloses an AlGaN-based deep ultraviolet LED epitaxial wafer and a preparation method thereof. The AlGaN-based deep-ultraviolet LED epitaxial wafer comprises a silicon carbide substrate, an Ag layer deposited on the silicon carbide substrate, an AlN buffer layer grown on the Ag layer, an AlGaN buffer layer grown on the AlN buffer layer, a non-doped AlGaN layer grown on the AlGaN buffer layer, an n-type doped AlGaN layer grown on the non-doped AlGaN layer, an AlGaN multi-quantum well layer grown on the n-type doped AlGaN layer, an electron blocking layer grown on the AlGaN multi-quantum well layer, and a p-type doped GaN film grown on the electron blocking layer. According to the invention, a stripping process is not needed, the external quantum efficiency is greatly improved, dislocation formation can be reduced, the radiation recombination efficiency of carriers is improved, the deep ultraviolet LED with high thermal conductivity, high electric conductivity and high light-emitting performance can be obtained, the current distribution of the deep ultraviolet LED is more uniform, the light extraction efficiency is improved, and the heat dissipation capability is good; and the preparation process is simple and has repeatability.

The invention discloses a preparation method of a super heavy oil refined oil-soluble efficient electro-desalting demulsifying agent, which comprises the steps of synthesizing phenol amine resin; performing condensation reaction of the phenol amine resin with epoxy propane and ethylene oxide sequentially to obtain block polyether; synthesizing thermoplastic phenolic resin by use of phenol, hydrochloric acid and formaldehyde; finally, performing a phenolic resin graft modification reaction between the obtained thermoplastic phenolic resin and the block polyether to obtain a product of super heavy oil refined oil-soluble efficient electro-desalting demulsifying agent. By adopting the preparation method disclosed by the invention, the oil-soluble efficient electro-desalting demulsifying agent can be efficiently prepared, the production cost is reduced, and the utilization rate of raw materials is improved; the demulsifying agent produced by the method can remarkably increase the desalting and dehydration speed of super heavy oil, saves the limited time and can effectively compensate for the shortcomings of a super heavy oil treatment process of a processing device.

The invention relates to a preparation method of a carbide-loaded noble metal monatomic catalyst, and belongs to the technical field of electro-catalytic materials. The technical problems of high preparation cost and low metal utilization rate of a noble metal catalyst for an electrochemical hydrogen production reaction at present are solved. In the synthesis process of a metal organic framework precursor, noble metal ions are introduced to be complexed with heteropolyacid and embedded into an organic framework pore channel in a self-assembly mode, and the precursor is subjected to high-temperature heat treatment and acid etching to obtain the carbide-loaded noble metal monatomic catalyst. The result shows that the loaded noble metal is uniformly dispersed on the carbide nanoparticles in a monatomic form. The catalyst shows good activity in alkaline electrochemical hydrogen evolution reaction. The preparation process of the catalyst is simple and easy to implement, the utilization rate of precious metal is remarkably increased, the cost of the electrocatalyst is effectively reduced, and the catalyst has wide application prospects.

The invention relates to an anti-aging photoelectric displacement sensor, which comprises a semiconductor substrate, an Al ZnO-doped film on the surface of the semiconductor substrate and two indium point electrodes on the surface of the film. The anti-aging photoelectric displacement sensor on the basis of lateral photovoltaic effects can be obtained by depositing the Al ZnO-doped film on the Si substrate through ultrasonic cleaning to replace a metal film layer in a metal- oxide-semiconductor structure. The nonlinear rate of the sensor can be controlled to be 3.22%, and the position sensitivity can reach 41.85mV / mm. As the Al ZnO-doped target material is directly used, the manufacturing technology is simple, and large-scale preparation in actual production can be realized.

The invention discloses flexible early strength concrete and a preparation method thereof. The flexible early strength concrete is prepared from a cementing material, manufactured sand, gravels, cement, an initiator, an accelerant and white latex, wherein a ratio of the cementing material to aggregates is 1:6, a sand ratio is 45%, a cement content is 10%, and a white latex content is 2%-4%. The white latex in the flexible early strength concrete has advantages of great film forming property, high adhesion strength, high curing speed and the like, thereby being a novel high-performance admixture. By a large admixing amount, normal-temperature curing is realized while high cementing strength and high curing speed of the early strength concrete are realized. The flexible early strength concrete is low in elasticity modulus, high in toughness and high in compressive strength, keeps advantages of normal concrete in construction, fireproof safety, durability and the like and also integrates traveling comfort of flexible pavement materials. Low consumption of the cementing material and excellent mechanical properties are realized, 6-hour compressive strength is not lower than 30MPa, and 7d compressive strength is 45.1MPa. In addition, large-scale production can be realized, and the flexible early strength concrete has a promising application prospect.

The invention discloses an artificial marble with fragrance and a preparation method thereof, and the artificial marble with fragrance comprises the following raw materials by weight: 8%-10% of perfume waste residue, 0.25%-1% of an auxiliary agent, 39%-61% of a calcium carbonate filler, 10%-15% of a pigment, and 15%-20% of resin. The artificial marble with fragrance is prepared through the steps of spice waste residue treatment, crushing, raw material mixing, pressing, curing, cutting, surface grinding, polishing and the like. According to the present invention, with the use of the fragrant waste residue of the perfume, the influence of the waste residue on the environment is reduced, the cost is saved, the large-scale production application of the fragrant artificial marble is achieved, the fragrance can be well and uniformly distributed on the artificial stone, and the method is suitable for the place with the heavy odor, and is beneficial to the environment improvement.

A type of air filter paper and a preparation method therefor. The preparation method includes the following steps of: (1) preparing a piece of bottom-layer paper; (2) preparing a dispersion mixed solution of a carbon nanomaterial; and (3) arranging the bottom-layer paper on the former, and conveying the dispersion mixed solution of a carbon nanomaterial onto the former, wherein the dispersion mixed solution of a carbon nanomaterial is filtered and formed on the bottom-layer paper, and then carrying out sizing and drying to obtain the air filter paper.

The invention discloses an epoxy resin-organic bentonite-metal oxide composite material. The epoxy resin-organic bentonite-metal oxide composite material is formed by dispersing and compounding nano particles formed by mixing organic bentonite and ZnO-ZrO2 metal oxides in an epoxy resin matrix material; the preparation method of the composite material comprises the following steps of: uniformly dispersing nano particles of organic bentonite and ZnO-ZrO2 metal oxides into epoxy resin liquid by a mechanical mixing method; finally obtaining a novel epoxy resin-organic bentonite-ZnO-Zr2O2 metal oxide composite material by a series of stirring, adding and processing. In a preparation process, a leveling agent and a defoaming agent are not used, and therefore, preparation cost of the material is further lowered. An anti-corrosive coating material disclosed by the invention has good corrosion resistance and can be applied in marine engineering architectures and structural steel or a reinforcing steel bar in a relatively special industrial production condition; the preparation method of the composite material is simple in process, does not need a special device, and can realize large-scale production and application.

The invention discloses an ultraviolet LED epitaxial wafer, which comprises a glass substrate, and a metal layer, a polycrystalline AlN layer, a single crystal AlN layer, an undoped AlGaN layer, an n-type doped AlGaN layer, a multi-quantum well layer, an AlGaN electron blocking layer, a p-type doped AlGaN layer, and a p-type doped GaN layer sequentially growing on the glass substrate. The invention also discloses an ultraviolet LED epitaxial wafer preparation method. Based on the characteristics of each layer, an electroplating method, a magnetron sputtering method, a physical vapor depositionmethod and a molecular beam epitaxial growth technology are combined. The GaN material with less defects and high quality can grow, the substrate is easy to remove, heat conduction and electrical conductivity are good, and the light emitting performance is high. The production process is simple, the cost is low, the reproducibility is achieved, and large-scale production application can be realized.

The invention discloses a method for producing amylase by using transgenic maize. The method comprises the following steps of transferring an encoding gene of amylase into a maize genome under the action of a GT1 promoter to construct amylase-producing transgenic maize. According to the transgenic maize, high expression of amylase is realized in endosperm, and the activity of the produced amylaseis extremely high and reaches 8000 units per gram of seeds or above; the amylase produced by the transgenic maize does not need to be separated and concentrated, and can be directly applied to the production processes of feed production, food processing, textile industry and the like; and a maize bioreactor is used for producing amylase, the production cost is low, and the method is an environment-friendly production mode.

The invention provides a La modified Ni / Al2O3 catalyst, a preparation method and application, and belongs to the field of energy and chemical industry. According to the catalyst, Al2O3 is used as a carrier, metal nickel is used as an active component, a rare earth element La is directly introduced through a coprecipitation method for modification, a precursor is obtained, and then the precursor is subjected to high-temperature calcination reduction to obtain the target catalyst. By introducing the rare earth element La, on one hand, the agglomeration of nickel can be reduced, the dispersity of active metal Ni is increased, and the particle size of nickel particles is controlled at a nanometer level, and on the other hand, the stability and cyclicity of the catalyst can be improved, the hydrogenation catalytic activity of the catalyst on organic liquid can be effectively improved, and the catalytic activity can be comparable with that of a noble metal catalyst Ru and the like.

The invention discloses a tin disulfide-black phosphorus composite material, a preparation method and an application thereof, belonging to the field of material preparation. A preparation method of tin disulfide-black phosphorus composite material, comprising the following steps: 1) dispersing black phosphorus nanosheets in absolute ethanol, and adding tin tetrachloride pentahydrate and cysteine ​​successively to obtain a precursor solution; 2) After the precursor is transferred to a polytetrafluoroethylene reactor, a solvothermal reaction is carried out, and the obtained reaction product is centrifugally cleaned and dried to obtain a tin disulfide-black phosphorus composite material. The tin disulfide-black phosphorus composite material prepared by the preparation method of the invention has uniform appearance and stable performance. Invented tin disulfide-black phosphorus composite material as a gas-sensing material in NO 2 Application in gas sensor, able to detect ppb level NO at room temperature 2 With obvious and fast response and good selectivity, it has great application prospects in the field of gas sensing.

The invention relates to a simple preparation method of honeycomb porous carbon with a high specific surface area. The preparation method comprises the following steps: mixing zinc acetate with glycerol for reaction to obtain an organic complex containing glycerol acetate and zinc glyceroxide; and calcining and cracking the organic complex precipitate containing glycerol acetate and glycerozinc athigh temperature to remove the soft template glycerol acetate, cleaning with dilute acid to remove zinc oxide, and collecting to obtain the honeycomb porous carbon. The method is novel in thought andsimple and convenient to operate, the preparation of the honeycomb porous carbon with the high specific surface area is controllably prepared by an in-situ dual-template strategy through a simple one-step method, and the obtained porous carbon is high in specific surface area and relatively uniform in pore structure.

The invention discloses a preparation method of an oil-soluble high-efficiency electric desalination demulsifier for ultra-heavy oil refining. The preparation method comprises the following steps: synthesizing phenolamine resin, and successively condensing the phenolamine resin with propylene oxide and ethylene oxide Reaction to obtain block polyether, then use phenol, hydrochloric acid and formaldehyde to synthesize thermoplastic phenolic resin, and finally carry out phenolic resin graft modification reaction on the obtained thermoplastic phenolic resin and block polyether to obtain ultra-heavy oil refining oil-soluble high-efficiency electric desalination Demulsifier products. The preparation method of the present invention can efficiently prepare an oil-soluble high-efficiency electric desalination demulsifier, reduce production costs, and improve the utilization rate of raw materials. The demulsifier produced by the method can greatly increase the desalination and dehydration speed of super heavy oil, save limited time, and can effectively Make up for the shortcomings of the processing device in the processing of super-heavy oil.

The invention relates to a carbon quantum dot / titanium dioxide composite photocatalytic material and its preparation method and application. The carbon quantum dot / titanium dioxide composite photocatalytic material includes titanium dioxide and carbon quantum dots grown in situ on the surface of the titanium dioxide. The mass ratio of the carbon quantum dots to titanium dioxide is (0.005-0.5): 1, preferably ( 0.005~0.2):1. Compared with the existing carbon quantum dot / titanium dioxide composite photocatalytic material, in the carbon quantum dot / titanium dioxide composite photocatalytic material in which carbon quantum dots are grown in situ in the present invention, the carbon quantum dots and titanium dioxide are combined with Ti-O-C bonds. The dots are not easy to fall off from the titanium dioxide surface, forming a carbon quantum dot / titanium dioxide two-phase heterostructure with a more stable structure and chemical properties.

The invention provides a visible-light-induced photocatalyst, and a preparation method and application thereof. The invention first provides a carbon-modified zeolitic material. The carbon-modified zeolitic material comprises carbon existing in the form of being doped into a zeolitic framework and / or attached to interiors of pores, wherein the content of carbon is 0.01%-90% based on 100% of the total weight of the zeolitic material. According to the preparation method, an organic template agent in parent zeolite can be converted into carbon by regulating and controlling calcining conditions inthe preparation process of zeolite, so the carbon is doped into the framework of the zeolite and / or attached into zeolite holes, and thus, the energy band gap width of the zeolite is effectively reduced, and the zeolite is converted into a visible-light-induced photocatalyst from a non-visible-light-induced material. The carbon-modified visible-light-induced zeolite photocatalyst provided by theinvention is safe to use, free of biotoxicity and excellent in photocatalytic performance, has the potential of large-scale production and application, and can be widely applied to the fields of air purification, water pollution prevention and control, sterilization and disinfection, deodorization and the like.

The invention relates to a method for preparing a porous carbon material from humin and a porous carbon material thereof.The method comprises the following steps that 1, humin and potassium ferrate / potassium permanganate are added into a mixed solution of water and ethyl alcohol, stirring is conducted for 12 h at the room temperature, the mixture is put into a drying oven to be dried, and a black solid is obtained; (2) putting the black solid into a tubular furnace under the protection of inert gas, and sufficiently calcining the black solid; and 3) cooling, taking out a black solid, and repeatedly washing with deionized water and an acid solution to obtain the biomass porous carbon material. The method has the advantages that the low-added-value by-product humin is converted into the porous biomass carbon material with utilization value, the preparation process has the characteristic of environmental friendliness, and the preparation method is simple, convenient, easy to operate and high in preparation efficiency. The prepared carbon material is high in specific surface area, large in pore volume and regular in structure, has a certain number of oxygen-containing groups on the surface, and has certain potential in the aspects of adsorption, chemical energy storage, efficient chemical process implementation and the like.

The invention relates to a photocatalytic reduction waste gas integrated circulating treatment device and a use method thereof. The photocatalytic reduction waste gas integrated circulating treatment device comprises a gas fractionator, a sublimation chamber, a pressure chamber, a liquid phase reaction chamber and a waste gas recovery device, wherein an outlet of the gas fractionator is connected with the sublimation chamber, the sublimation chamber is connected with the pressure chamber, the pressure chamber is connected with the liquid phase reaction chamber, the liquid phase reaction chamber is connected with the waste gas recovery device, the waste gas recovery device is connected with a gas inlet of the gas fractionator, and the gas fractionator is further provided with a waste gas inlet. Carbon dioxide and nitrogen oxide can be efficiently separated from industrial waste gas, carbon dioxide and nitric acid existing in a solution can be fully reacted in the liquid-phase reaction chamber to generate methanol, nitrogen, oxygen and other products, internal circulation of carbon dioxide can be achieved in the device, and the nitrogen oxide can be efficiently separated from the industrial waste gas. Other gas products generated by the photocatalytic reduction reaction are separated, so that the recycling rate of carbon dioxide in the industrial waste gas is increased.

The invention discloses a tin disulfide-black phosphorus composite material as well as a preparation method and an application thereof, which belong to the field of material preparation. The preparation method of the tin disulfide-black phosphorus composite material comprises the following steps: 1) dispersing black phosphorus nanosheets into absolute ethyl alcohol, and sequentially adding tin tetrachloride pentahydrate and cysteine to obtain a precursor solution; and 2) transferring the precursor to a polytetrafluoroethylene reaction kettle, carrying out a solvothermal reaction, and carryingout centrifugal cleaning and drying on the obtained reaction product to obtain the tin disulfide-black phosphorus composite material. The tin disulfide-black phosphorus composite material prepared bythe preparation method disclosed by the invention is uniform in morphology and stable in performance. The tin sulfide-black phosphorus composite material is applied to an NO2 gas sensor as a gas sensitive material, has obvious and rapid response and good selectivity to ppb-grade NO2 at room temperature, and has a great application prospect in the field of gas sensing.

The invention discloses a high-power LED and a preparation method thereof, and relates to the field of semiconductor illumination, the high-power LED comprises a silicon carbide substrate, one side of the silicon carbide substrate is provided with an AlN buffer layer, one side of the AlN buffer layer is provided with an InGaN buffer layer, one side of the InGaN buffer layer is provided with a non-doped InGaN layer, an n-type doped InGaN layer, an InGaN / GaN multi-quantum well layer, an In component gradient zigzag electron barrier layer and a p-type doped GaN film. The GaN-based blue light LED is prepared by taking silicon carbide as the substrate of the LED, the In component gradually-changed zigzag electron blocking layer is adopted, the electron and hole concentration of the LED adopting the zigzag electron blocking layer is higher than that of an LED adopting a conventional single-component electron blocking layer, and the carrier concentration distribution is relatively uniform; and the leakage of electrons can be effectively reduced, and the injection of holes is increased, so that the recombination rate of current carriers is improved, and the optical performance of the LED is improved.

The invention discloses a method for extracting and separating valuable metals from high leaching slag produced by wet zinc smelting, which is characterized in that it comprises two steps: (1) decomposing and enriching high leaching slag; (2) floating Among them, (1) Decomposition and enrichment of high leaching slag: Under strong alkaline conditions, the valuable metal elements released after decomposition of jarosite and silicate in high leaching slag are converted into easy flotation forms (2) flotation: the silver, iron and lead in the high leaching slag after the step (1) decomposition-transformation are passed through flotation technology to select silver concentrate, iron concentrate and lead concentrate respectively . The advantages of the present invention are: 1. The precious metal silver and the valuable metals lead and iron are effectively separated and enriched; 2. Solve a series of environmental impact problems caused by slag stacking treatment; 3. Extend the industrial chain and improve the The level of comprehensive utilization of resources; 4. The process of the present invention has strong practical operability and can realize large-scale production and application.

The invention provides a liquid lens, a use method of the liquid lens and a preparation method of the liquid lens. The liquid lens at least comprises a substrate layer, a first bendable conductive film layer, a second bendable conductive film layer and a conductive liquid; the substrate layer made of a light-transmitting material; the first bendable conductive film layer is arranged on the surfaceof the substrate layer; a distance is formed between the second bendable conductive film layer and the first bendable conductive film layer; the conductive liquid is located between the first bendable conductive film layer and the second bendable conductive film layer; one of the first bendable conductive film layer and the second bendable conductive film layer is insulated from the conductive liquid, and the other one of the first bendable conductive film layer and the second bendable conductive film layer is electrically connected with the conductive liquid; the first bendable conductive film layer and the second bendable conductive film layer have the advantages of being easy to bend and process, and therefore the zooming range of the liquid lens can be enlarged.

The invention discloses a method for breeding aphidius gifuensis within a short cycle. The method comprises the steps of: host plant cultivation, pest species breeding, and aphidius gifuensis large-scale breeding. A breeding cycle of the whole process is 29-40 days. Each dish of brassica chinensis can breed more than 12000 of aphidius gifuensis, a parasitism rate of the aphidius gifuensis is 95%, a formation rate of stiff aphids is 60%, and stiff aphids of the aphidius gifuensis in each dish can be used for controlling 10-15 mu of aphid-damaged farmland. Brassica chinensis of a vegetable variety is adopted as a host plant with high strong adaptability and fast growth; and the brassica chinensis a host plant variety with a shortest cultivation cycle in current breeding technology of sphidius gifuensis, thereby reducing a breeding cycle of the aphidius gifuensis, and improving breeding efficiency of the aphidius gifuensis. The method adopts a flotation breeding method for cultivating the host plant, is simple in process step and solves the problems such as high breeding energy consumption, a tedious technical process, poor activity of the aphidius gifuensis, and irregular formation of the stiff aphids of the aphidius gifuensis, and can increases a utilization rate of the aphidius gifuensis for wide application in agriculture and forestry industry, thereby enabling the aphidius gifuensis to have better feasibility of production, promotion, and application.

The invention discloses a pure-phase spinel Co3O4 multistage nanosheet, a soft template preparation method thereof and application thereof in a supercapacitor, which belong to the field of nano energy storage structure material preparation technology and electrochemical application. Sodium dodecyl sulfate which is common in life is adopted as a soft template, a nanoflower precursor with uniform morphology is obtained through oil bath heating, Co3O4 with a multistage nanosheet structure is obtained after proper annealing, Co3O4 is mixed with PTFE and then loaded on foamed nickel, and the supercapacitor anode with good performance can be obtained. The specific capacitance value of the supercapacitor obtained by using the anode is 342.8 C.g<-1> (the current density is 1A.g<-1>), the rate capability is 58.8% (the current density is increased by 16 times), the production cost is reduced, and the anode has a good industrial application prospect. Besides, when the pure-phase spinel Co3O4 multistage nanosheet is used for manufacturing an electrode material of the supercapacitor, carbon powder does not need to be added, so that the manufacturing cost is reduced, the contribution of carbon to the capacitor is eliminated, and the performance result of the supercapacitor is more reliable.