36results about How to "Suitable for medium-scale industrial production" patented technology

The invention discloses a preparation method of a tubular sandwich-structure CNT@Ni@Ni2(CO3)(OH)2 composite material. The preparation method comprises the steps of uniformly dispersing nickel chloride hexahydrate and functionalized multi-wall carbon nanotube in ethylene glycol, adding a reducing agent hydrazine for high-temperature back flow, centrifugally collecting a product, repeatedly washing the product, and performing vacuum drying to obtain core-shell structure CNT@Ni; and dissolving the core-shell structure CNT@Ni and the nickel chloride hexahydrate in deionized water, placing the core-shell structure CNT@Ni and the nickel chloride hexahydrate in a semi-permeable membrane, dissolving sodium carbonate in the deionized water, placing the sodium carbonate outside the semi-permeable membrane, centrifugally collecting a product after standing for a night, repeatedly washing the product, and performing vacuum drying to obtain the tubular sandwich-structure CNT@Ni@Ni2(CO3)(OH)2 composite material. On the basis of combining an oxygen-containing metal compound and a carbon material, a metal nickel monomer is added, thus, the conductivity of the whole material can be improved, meanwhile, the specific capacity of the composite material is also greatly improved, and the cycle lifetime of the composite material is also greatly prolonged. The composite material has the advantages of process simplicity, preparation condition universality, product morphology stability and high purity, the product is convenient and simple to process and is suitable for medium-scale industrial production.

The invention relates to a preparation method of an icosahedron crystalline nano nickel-cobalt alloy. According to the method, under an alkaline condition, nickel salt and cobalt salt are reduced by 1,2-propylene glycol at high temperature, so as to obtain the icosahedron crystalline nano nickel-cobalt alloy. Compared with the prior art, the method provided by the invention has the advantages that the regulation and control performance for alloy constituent contents of a product is good; simple inorganic salts are respectively used as reactants, so that the commonality is good; and raw materials can be obtained easily, a catalyst, a surfactant or a template is not needed, and the cost is low. The product prepared by the method has favorable catalytic performance, can be used as a high-performance electrochemical catalyst and is wider in development prospect and application space; and the method provided by the invention is simple in process, mild in preparation conditions, stable in product appearance, high in product purity, convenient and concise in product treatment and suitable for medium-scale industrial production.

The invention provides a control preparation method of ordered titanium dioxide nanomaterials, comprising the following steps: forming a mixed solution with acid and deionized water; dropping a titanium source into the above mixed solution, and stirring vigorously while the titanium source is rapidly hydrolyzed. Mix uniformly; carry out hydrothermal reaction on the uniformly mixed suspension; after the reaction, the precipitated product is washed with distilled water and absolute ethanol, and then dried to obtain ordered titanium dioxide nanorod clusters, nanoflowers or nanospheres. The preparation method does not require any surfactant, and titanium dioxide nanostructures with different shapes and crystal forms can be successfully prepared only in an acidic environment; and the method has the advantages of simple process and process, wide adjustable range of parameters, and repeatability. Strong, low cost and other advantages.

The invention relates to a synthesis method of a cable-type silver chloride-wrapped copper nanostructure: specifically: 1. Solution preparation. Prepare reaction substrate copper salt, reducing agent and structure directing agent mixed solution, surfactant solution, silver salt solution. 2. The synthesis method of copper nanowires. The mixed solution containing copper salt, reducing agent and structure directing agent is magnetically stirred for a certain period of time at room temperature, then transferred to an oil bath, kept at a specific temperature for a certain period of time, after the reaction is completed, cooled to room temperature, and the sample is centrifuged. Wash and collect the product. 3. Quantum dots of silver chloride. Add a certain concentration of silver salt solution dropwise into a specific and certain concentration of surfactant solution, and magnetically stir for a certain period of time to obtain a milky white solution. 4. The synthesis method of silver chloride loaded copper nanowires. Add copper nanowires into the milky white solution, and stir magnetically for a certain period of time. The invention has simple process, common preparation conditions, stable product appearance, high purity, simple product treatment, and is suitable for medium-scale industrial production.

The invention relates to a preparation method of a porous carbon ball-loaded M-Sn alloy nano particle composite material. The preparation method comprises the following steps: weighing porous carbon balls, and adding the porous carbon balls into a solvent for ultrasonic dispersion, adding tin salt for ultrasonic uniform mixing, stirring and heating for reaction; after reacting to reach a certain temperature, adding another salt (iron salt or cobalt salt or nickel salt) dissolved in advance and a reducing agent, and carrying out high-temperature returning reaction; and after the reaction is finished, carrying out centrifugal washing to collect a product so as to obtain the porous carbon ball-loaded M-Sn (M=Fe, Co and Ni) alloy nano particle composite material. The preparation method has the advantages of being simple, and universal in preparation conditions, the product is stable in shape and high in purity, the product treatment is convenient and easy, and the preparation method is suitable for industrial production with the medium scale.

The invention relates to a sea-urchin-like three-dimensional Fe3O4 / SnO2 nanorod array and a synthetic method and application thereof; specifically, common ferroferric oxide and tin tetrachloride are used as precursors, growing is carried out through simple two-step process, multifunctional sea-urchin-like three-dimensional Fe3O4 / SnO2 composite having adsorbing and photocatalysis functions is synthesized for the first time, and the morphology of a product is under control. Compared with the prior art, the sea-urchin-like three-dimensional Fe3O4 / SnO2 nanorod array and the synthetic method and application thereof have the advantages that the materials used herein are low in price and easy to obtain, the process is simple, preparation conditions are universal, the morphology of the products is stable, the purity is high, the products are simple to treat, and the nanorod array is suitable for medium-scale industrial production.

The invention relates to a preparation method of a porous carbon ball-supported MxOy nanoparticle composite material. The preparation method comprises the following steps of weighing porous carbon balls, adding the porous carbon balls into a solvent, carrying out ultrasonic dispersion, carrying out heating for a reaction, adding a proper amount of acetylacetone salt into the reaction product at a required temperature, carrying out a high-temperature backflow reaction process, then carrying out centrifugation and washing, and collecting the product which is the porous carbon ball-supported MxOy nanoparticle composite material, wherein M represents Mn, Fe or Co. The preparation method has simple processes and general preparation conditions. The porous carbon ball-supported MxOy nanoparticle composite material has stable product morphology and high purity and can be treated conveniently and simply. The preparation method is suitable for middle-scale industrial production.

The invention relates to a method for preparing microgel through enzymatic polymerization, which comprises the following steps: taking normal octane and acetylacetone, uniformly mixing, adding an emulsifier, fully mixing to prepare an oil phase, introducing argon to remove oxygen, taking a certain amount of N,N-dimethylacrylamide, successively adding N,N-methylene bisacrylamide and deionized water, performing ultrasonic mixing, after N,N-methylene bisacrylamide is completely dissolved, adding horseradish peroxidase and uniformly stirring to prepare a water phase solution; dropping the water phase solution in the oil phase, uniformly stirring to prepare an anti-phase emulsion; adding hydrogen peroxide in the anti-phase emulsion, continuously introducing argon for a polymerization; after polymerization is completed, adding excessive ethanol for demulsification, centrifuging, taking sediment at bottom, and washing to obtain the semi-clarity yellow-brown microgel. Compared with prior art, the preparation condition of the method is mild, the process is simple, the obtained microgel has the advantages of structured shape, smooth surface and narrow particle size distribution.