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

The invention provides a controlled preparation method of an ordered titanium dioxide nano-material. The method comprises the following steps: preparing a mixed solution from acid and deionized water; dripping a titanium source into the mixed solution, intensively stirring to hydrolyze the titanium source quickly, and uniformly mixing the titanium source and the mixed solution; performing a hydrothermal reaction on the uniformly mixed suspension; washing precipitate with distilled water and absolute ethanol after the reaction is finished; and drying to obtain an ordered titanium dioxide nano-rod cluster, nano-flower or nano-ball. According to the preparation method, no surfactant is needed, and titanium dioxide nano-structures with different shapes and different crystal forms can be successfully prepared in an acid environment; in addition, the preparation method has the advantages of simple process and flow, wide parameter adjustable range, strong repeatability, low cost and the like.

The invention relates to a method for preparing an alkali type copper molybdate microsphere having a surface nano-whisker structure. The method comprises the following steps of: (1), dropwise adding copper salt solution into molybdate solution, wherein the mol ratio of copper salt to molybdate is 1:1; (2), adjusting the pH of a mixed system obtained in the step (1) to 6, transferring the mixed system into a reaction kettle, stirring magnetically and ultrasonically so that the mixed system is uniformly dispersed, and keeping the temperature at 50-110 DEG C for 1-12h; and (3), cooling to room temperature by the end of the reaction, and centrifuging, washing, drying and collecting a sample so as to obtain the alkali type copper molybdate microsphere having the surface nano-whisker structure. Compared with the prior art, the method disclosed by the invention is simple in process, universal in preparation condition, steady in product morphology, high in purity and simple in product treatment, and is applied to medium-scale industrial production.

The invention brings forward a preparation method for a double-rare earth element lanthanum and gadolinium codoped titanium dioxide nanotube. The method is characterized by comprising the following steps: preparing a titanium dioxide nanotube by using a strong base-hydrothermal treatment combined method; preparing a mixed solution of lanthanum nitrate and gadolinium nitrate; adding the titanium dioxide nanotube into the solution prepared in step (2) during stirring; continuing stirring for a period of time; and carrying out pumping filtration and washing on an obtained product, drying the product in a drying box at a constant temperature of 80 DEG C for 10 h, grinding the product into powder and sintering the powder in a muffle furnace at a certain temperature so as to obtain the lanthanum and gadolinium codoped titanium dioxide nanotube composite. With the preparation method, a plurality of rare earth ions can be successfully loaded on the surface of and in the titanium dioxide nanotube, the rare earth ions have high dispersibility in the titanium dioxide nanotube, and the product has stable properties; the preparation method has easy and convenient process and flow and allows the product to maintain a tubular structure after sintering.

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 method for synthesizing an amorphous nickel-cobalt alloy nano-film loaded with platinum particles, which comprises the following steps: taking an artificial active pyroxylin membrane as a template; reducing a metal salt by a composite hydrogen compound at the normal temperature; and then obtaining the amorphous nickel-cobalt alloy nano-film loaded with the platinum particles. The method has very high regulation to an alloy component content of a product; a simple inorganic salt is adopted as a reactant respectively with very strong universality; the product prepared by the method has good electrochemical property, can be used as a high performance electrochemical catalyst and has wide development prospect and application space; and the method has the advantages of simple process, mild preparation conditions, stable appearance and high purity of the product, convenient and concise treatment of the product, and suitability for middle-scale industrial production.

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 provides a spongy C-SiC composite material and a preparation method thereof, and relates to the technical field of composite material preparation. The preparation method comprises the following steps: uniformly dispersing porous structure carbon spheres and tetraethoxysilane into a mixed solution of ethyl alcohol and deionized water in a certain proportion, adding ammonia water, reacting for several hours, centrifugally collecting a product, and carrying out vacuum drying after repeated washing to obtain a product C-SiO2; uniformly mixing the product C-SiO2 with magnesium powderin an appropriate mass proportion, transferring the mixture into a closed reactor and putting the closed reactor into a tubular furnace, controlling at a certain temperature rise rate, preserving thetemperature for a period of time, collecting the product after cooling, and carrying out vacuum drying after washing the product with certain concentrations of diluted hydrochloric acid and hydrofluoric acid in sequence to obtain the spongy C-SiC composite material. As an example but not restricted, through the scheme provided by the invention, the preparation method has the beneficial effects that the technology is simple, mild in preparation condition, convenient in product treatment, stable in product shape and high in purity, and is applicable for medium-scale industrial production.

The invention discloses an Ag / CNTs / GO compound with a sandwich structure and a preparation method thereof. In the sandwich structure, the upper layer and the lower layer are graphene oxide thin layers, and the middle is a carbon nanotube layer with a hollow structure, wherein nano-silver particles are uniformly dispersed in graphene oxide and carbon nanotubes. The method provided by the invention has the advantages of simplicity and practicability, convenient operation, easy control, simplicity and environmental protection. Also, the prepared Ag / CNTs / GO compound with a sandwich structure strengthens the collaborative immobilization capacity of graphene and carbon nanotubes to nano-silver, so that the compound can have very good stability, and the dispersibility of nano-silver particles are improved. At the same time, the compound also shows a strong inhibitory effect on Gram positive bacteria (staphylococcus aureus) and Gram negative bacteria (Escherichia coli) and other strains.

The invention relates to a CuNi-Cu2O / NiAlOx nano composite material with a two-dimensional layered structure. The CuNi-Cu2O / NiAlOx nano composite material comprises CuNi, Cu2O and NiAlOx. The preparation method comprises the following steps of: (1) fully dissolving a copper salt, a nickel salt and an aluminum salt in deionized water, and synthesizing CuNiAl-LDH with a two-dimensional nanosheet structure through a hydrothermal synthesis method; (2) calcining the prepared CuNiAl-LDH to form a multi-metal oxide which is uniformly dispersed; and (3) carrying out high-temperature reduction on a prepared multi-metal oxide in an H2 atmosphere to obtain the CuNi-Cu2O / NiAlOx nano composite material. The nano composite material is applied to photocatalysis, and especially can be used for converting aromatic nitro compound pollutants into aromatic amino compounds. The photoreaction catalyst has excellent photocatalytic performance and is relatively stable. The process is simple, the preparation condition is universal, the product is stable in morphology and high in purity, product treatment is convenient and simple, and the method is suitable for medium-scale industrial production.

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 belongs to the field of photocatalytic degradation and thallus inactivation, and provides a preparation method of a copper mesh integrated Cu2O@FeO nano array. The preparation method comprises the following steps: taking a copper mesh and iron nitrate nonahydrate as raw materials, and obtaining a Cu(OH)2 nano array through in-situ growth; obtaining a Cu(OH)2@Fe(OH)3 nano array precursor through interaction between a hydrolysis mechanism of iron ions and the Cu(OH)2 nano array prepared on the copper mesh substrate in situ; and through an in-situ phase transformation process, successfully preparing the Cu2O@FeO nano array with a heterostructure on the copper mesh substrate in a reducing gas atmosphere. The invention further relates to the copper mesh integrated Cu2O@FeO nano array and application thereof, wherein the material has excellent photodegradation and thallus inactivation performance under visible light irradiation. The method has the advantages of simplicity, few operation steps, low cost, convenience and simplicity in product treatment and the like, and is suitable for medium-scale industrial production.

The invention relates to a method for preparing a manganese dioxide nano-material with high ammonia gas specific response. The method comprises the following steps: (1) preparation of solutions: preparing a potassium permanganate solution and a sodium sulfite solution; (2) synthesis of a rodlike manganese dioxide nano-composite material: putting the potassium permanganate solution and the sodium sulfite solution into a reaction kettle, adding polyvinylpyrrolidone into the reaction kettle to serve as a surfactant, carrying out mixing with ultrasonic sound till the obtained mixture is uniform, putting the reaction kettle into an oven, keeping the temperature at a specific value for a certain time, cooling to the room temperature after reaction is finished, centrifuging a sample, carrying out washing and drying, and collecting the product which is the manganese dioxide nano-material with high ammonia gas specific response. Compared with the prior art, the rodlike manganese dioxide nano-composite material is synthesized according to the hydrothermal method, so that the appearance of the product can be controlled. Moreover, the manganese dioxide nano-material has high NH3 specific response, thereby being capable of detecting gas existence under the condition that the gas concentration is very low.

A preparation method of a two-dimensional FeNi3 / NiFe-MMOs heterostructure comprises the following steps: preparing a mixed solution from raw materials of nickel salt, iron salt, a precipitator urea and a proppant sodium citrate according to a certain concentration and proportion, transferring the mixed solution into a reaction kettle, and carrying out a hydrothermal reaction at a certain temperature program to prepare NiFe-LDH; calcining the NiFe-LDH according to a certain temperature program, and collecting a product after the reaction is finished, so as to obtain NiFe-LDH; and subjecting the NiFe-LDO to a reaction according to a certain temperature program, so as to partially separate a FeNi3 alloy phase out from the NiFe-LDO in situ according to the proportion of Fe to Ni being 1:3 and further to form the two-dimensional FeNi3 / NiFe-MMOs heterostructure material. The invention also discloses an application of the two-dimensional FeNi3 / NiFe-MMOs heterostructure material obtained by the preparation method as a catalyst, especially the application of the two-dimensional FeNi3 / NiFe-MMOs heterostructure material as the catalyst in conversion of p-nitrophenol into p-aminophenol. The method has the advantages of simple synthesis method, high catalytic activity of the obtained material, low cost and the like.

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 provides a preparation method of a zinc oxide / titanium dioxide composite material with a network structure. The method is characterized by comprising following steps: preparing a biological template; preparing a zinc-alcohol solution; preparing a butyl titanate-alcohol solution; taking out an egg-shell membrane dipped with normal saline, and dipping into the zinc-alcohol solution and the butyl titanate-alcohol solution separately for 4-12 h; putting the air dried egg-shell membrane into a muffle furnace for sintering at a sintering temperature of 550 DEG C to 700 DEG C with a temperature rising rate of 2 DEG C / min to 5 DEG C / min and a temperature maintaining time of 2-4 h; and cooling to room temperature to obtain the zinc oxide / titanium dioxide composite material with the network structure. According to the zinc oxide / titanium dioxide composite material with the network structure prepared by the simple biological template method, ZnO and TiO2 particles in the product has coupling and synergistic effects, thus enhancing and improving a gas-sensitive performance, a luminescence performance, photocatalysis, and other performances. In addition, interactions between the ZnO and the TiO2 can generate new physical phenomena and new functions can be utilized. The method has advantages of the easily available template, simple preparation technology and processes, low cost, strong repeatability, capability of synthesis in large scale, and the like.

The invention relates to a method for preparing a graphene carrying tin-nickel nano-alloy particle composite material. The method comprises the following steps of weighing graphite oxide, tin salt and nickel salt and putting the weighed graphite oxide, tin salt and nickel salt into a solvent, evenly mixing the solution through ultrasonic, then adding hydrazine hydrate into the mixed solution, evenly mixing the solution through ultrasonic again, heating the solution for reaction, and carrying out centrifugal separation, washing and product collection after the reaction is finished to obtain the graphene carrying tin-nickel nano-alloy particle composite material. The method for preparing the graphene carrying tin-nickel nano-alloy particle composite material is simple in technology, preparation conditions are general, morphological structures of the products are stable, purity is high, the products are convenient and easy to treat, and the method is suitable for middle-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 relates to a method for synthesizing a three-dimensional radial tin-nickel alloy-loaded platinum nanoparticle composite material, which is specifically as follows: in the first step, an ethylene glycol solution of Sn and Ni inorganic salts and hexadecylamine are added into a reaction kettle, and the mixture is heated at a certain pH. Under the conditions, hydrazine hydrate is used as the reducing agent for high-temperature reaction for a period of time to obtain a three-dimensional radial tin-nickel alloy, which is centrifuged, washed, and dried. In the second step, sodium lauryl sulfate is added to the aqueous solution of the three-dimensional radial tin-nickel alloy, and H is added under ultrasonic conditions. 2 PPML 6 , to NaBH 4 A reducing agent is used to react. After the reaction, the sample is centrifuged, washed, and dried. The final product obtained is a three-dimensional radial tin-nickel alloy loaded platinum nanoparticle composite material. The method of the invention is used to prepare three-dimensional nanocomposite materials with stable structure, which is beneficial to material exchange and has excellent catalytic activity. The method of the invention is simple to operate, easy to control and simple to process the product, and is suitable for medium-scale industrial production.

The invention relates to a method for synthesizing an amorphous nickel-cobalt alloy nano-film loaded with platinum particles, which comprises the following steps: taking an artificial active pyroxylin membrane as a template; reducing a metal salt by a composite hydrogen compound at the normal temperature; and then obtaining the amorphous nickel-cobalt alloy nano-film loaded with the platinum particles. The method has very high regulation to an alloy component content of a product; a simple inorganic salt is adopted as a reactant respectively with very strong universality; the product preparedby the method has good electrochemical property, can be used as a high performance electrochemical catalyst and has wide development prospect and application space; and the method has the advantages of simple process, mild preparation conditions, stable appearance and high purity of the product, convenient and concise treatment of the product, and suitability for middle-scale industrial production.

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.

A hydrogen evolution reaction catalyst comprises Ni2SeS and porous carbon spheres and is a alloy nanorods Ni2SeS modified porous carbon composite material. A preparation method of the hydrogen evolution reaction catalyst comprises the following steps: (1) preparing a NiSe2 / PCS composite material by a hydrothermal synthesis method; and (2) preparing the Ni2SeS / PCS composite material through a chemical vapor deposition method. The hydrogen evolution reaction catalyst is applied to electro-catalytic hydrogen evolution. According to the invention, nickel salt is used as a nickel source, selenium powder is used as a selenium source, and the binary metal sulfide-carbon-based composite material is successfully prepared by a hydrothermal method and vapor deposition combined method. The hydrogen evolution reaction catalyst has excellent electrochemical hydrogen evolution property. The method is simple in process, universal in preparation condition, stable in product morphology, high in purity, convenient and simple in product treatment and suitable for medium-scale industrial production.

The invention discloses a PtCo nano-alloy modified Co3O4-SiO2 flower-like multistage composite material and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a Co3O4-SiO2 composite material; and (2) preparing the PtCo / Co3O4-SiO2 composite material. The PtCo / Co3O4SiO2 composite material with the three-dimensional flower-shaped structure, prepared by the method, has very high CO catalytic oxidation activity and excellent high thermal stability, and PtCo nanoparticles do not have obvious agglomeration and sintering after the PtCo nanoparticles are circularly catalyzed for 20 times within the temperature range of 100-400 DEG C. The method is novel in process, universal in preparation condition, stable in product morphology, high in purity, convenient and simple in product treatment and suitable for medium-scale industrial production.

The invention discloses a sandwiched interlayer structure Ni(OH)2 / CNTs / Ni(OH)2 composite material preparing method. The method includes the following steps that polyvinyl pyrrolidone is dissolved in deionized water, and the polyvinyl pyrrolidone and the deionized water are stirred and evenly mixed; layered Ni(OH)2 materials are added in and dissolved in the solution, stirring is performed for the first time, products are collected in a centrifuging mode, vacuum drying is performed for the first time after washing is performed repeatedly, and then processed Ni(OH)2 can be obtained; the processed Ni(OH)2 and acidulated multi-wall carbon nanometer tubes are dissolved in deionized water, stirring is performed, after one night, products are collected in a centrifuging mode, vacuum drying is performed for the second time after washing is performed repeatedly, and sandwiched interlayer structure Ni(OH)2 / CNTs / Ni(OH)2 composite materials are obtained. According to the method, metal hydroxide is doped with carbon materials, and therefore not only can agglomeration of the metal hydroxide be prevented, but also the electrical conductivity and the specific capacity of the metal hydroxide can be greatly improved.

The invention relates to a sea urchin-like three-dimensional Fe 3 O 4 / SnO 2 Nanorod arrays and their synthesis methods and applications. Specifically, the present invention uses common ferric oxide and tin tetrachloride as precursors, and synthesizes for the first time a multifunctional nanorod array integrating adsorption and photocatalytic functions through a simple two-step growth method. Sea urchin-like three-dimensional Fe 3 0 4 / SnO 2 Composite materials and achieve control over product morphology. Compared with the existing technology, the present invention uses cheap and easily available materials, has a simple process, universal preparation conditions, stable product morphology, high purity, and simple product processing, and 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 belongs to the technical field of composite materials, and discloses a layered nickel / ferronickel double-metal oxide nano composite material and a preparation method thereof. The preparation method comprises the steps: adding a nickel salt, an iron salt and a precipitator into a reaction kettle for hydrothermal reaction, after the reaction is finished and the temperature is reduced, centrifugally collecting a product in the reaction kettle, and washing and drying to obtain the layered ferro-nickel double-metal hydroxide nano composite material; pouring the layered ferronickel double-metal hydroxide nano composite material into a magnetic boat, laying and transferring the layered ferronickel double-metal hydroxide nano composite material into a tubular furnace for calcining treatment to obtain a layered ferronickel double-metal oxide nano composite material; and pouring the layered ferronickel double-metal oxide nano composite material into the magnetic boat, laying, and transferring to the tubular furnace for calcining reduction treatment. The method can be applied to renewable energy sources, and is simple in process, universal in preparation condition, stable in product morphology, convenient and simple in product treatment, excellent in catalytic activity and 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.