609 results about "Dimethylamines" patented technology

The invention relates to a rabbit meat freshness detection method based on an electronic nose technology. The volatile gas release mode of the rabbit meat under different storage conditions including temperature, humidity and time is analyzed through experiments, and key putrefying gas including dimethylamine, hydrogen sulfide and aldehydes and the concentration change trend are recognized; a metal oxide semiconductor (MOS) or an electrochemical sensor matched with the gas is screened according to the identified main decay gas, and a sensitive material means comprising a tin oxide thin film doped with platinum is optimized; a response matrix of different sensors to target gas is established through experiments, and a multi-sensor signal fusion algorithm is optimized; a temperature and humidity sensor is introduced, and environmental noise correction is performed in combination with odor signals; adopting a convolutional neural network feature extraction method to extract nonlinear features associated with the rabbit meat decay stage; docking the extracted smell features with the dynamic distribution model, and unifying the quantization dimension through a feature standardization algorithm; and correcting the predicted corruption trend in real time in combination with a smell distribution dynamic model.

The invention discloses tris (dimethylamino) cyclopentadienyl hafnium and a preparation process thereof.The preparation process of the tris (dimethylamino) cyclopentadienyl hafnium comprises the following steps that S1, an n-hexane solution of n-butyllithium and dimethylamine are subjected to a reaction, and a lithium dimethylamino emulsion is obtained; s2, adding hafnium tetrachloride into the lithium dimethylamino emulsion for reaction, and separating to obtain a liquid-phase product; s3, the liquid-phase product is heated, a tetra (dimethylamino) hafnium concentrated solution is obtained, and the volume of the tetra (dimethylamino) hafnium concentrated solution is 20%-30% of the volume of the liquid-phase product; and S4, obtaining cyclopentadiene, adding the cyclopentadiene into the tetra (dimethylamino) hafnium concentrated solution to react, and filtering to obtain tris (dimethylamino) cyclopentadienyl hafnium. According to the preparation process of the tris (dimethylamino) cyclopentadienyl hafnium, complex solvent components are not needed, the preparation efficiency is improved, and the use amount of the solvent and the preparation cost are reduced.

The invention relates to a novel preparation method of tetra (dimethylamino) tin. The method comprises the following steps: in a nitrogen atmosphere, pumping an n-hexane solution of n-butyllithium and an n-hexane solution of dimethylamine into a pipeline through a propeller, mixing through a T-shaped joint, and reacting through a flow reactor 1 and a flow reactor 2 to obtain a lithium dimethylamide mixed solution; the method comprises the following steps: pumping a lithium dimethylamino mixed solution and a n-hexane solution of tin tetrachloride into a pipeline through a propeller, mixing through a T-shaped joint, and reacting through a flow reactor 3 and a flow reactor 4 to obtain a crude tetra (dimethylamino) tin product; and centrifuging and filtering the tetra (dimethylamino) tin crude product, adsorbing impurities by adopting a resin column, and carrying out reduced pressure distillation to remove the solvent, thereby obtaining the tetra (dimethylamino) tin. The adsorption resin column adopts modified macroporous adsorption resin, and is obtained by reacting, filtering and drying D190 macroporous styrene sulfydryl resin, dichloroethane, tetramethylguanidine, 5-allylpyrimidine-4, 6-diol and an ethylene boric anhydride pyridine complex.

The invention provides a non-noble metal heterogeneous catalyst as well as a preparation method and application thereof, and relates to the technical field of catalysts. The non-noble metal heterogeneous catalyst provided by the invention comprises an indium-zinc bimetallic oxide and an aluminum element doped in the indium-zinc bimetallic oxide. The non-noble metal heterogeneous catalyst (InZnAlOx catalyst) provided by the invention shows excellent catalytic activity and catalytic stability in preparation of N, N-dimethylformamide by reaction of carbon dioxide, hydrogen and dimethylamine. The result of the embodiment shows that compared with an InZnOx catalyst, when the InZnAlOx catalyst provided by the invention is used for preparing N, N-dimethylformamide through reaction of carbon dioxide, hydrogen and dimethylamine, the yield of N, N-dimethylformamide is high, and the InZnAlOx catalyst has excellent stability.

A high-strength PA6 composite material and a preparation method therefor, the PA6 composite material comprising, in parts by mass, 80-95 parts of caprolactam, 1-3 parts of benzoic acid and 10-30 parts of a modification additive. The benzoic acid is used for improving the tensile strength of the composite material, and the modification additive is used for enhancing the impact resistance of the composite material. Terephthalic acid and m-xylylenediamine undergo a reaction to generate m-xylylenediamine terephthalate, which is then subjected to a polycondensation reaction with caprolactam, so as to introduce same into the backbone of a PA6 molecule and modify the PA6 resin. The modified PA6 resin has remarkably improved tensile strength and impact resistance, so that the application range of the PA6 composite material can be greatly expanded.

A method for continuously producing m-xylylenediamine belongs to the technical field of organic synthesis and comprises the following steps: (1) mixing isophthalonitrile, toluene and liquid ammonia according to a mass ratio of 1: (3-5): (13-17) in a nitrogen atmosphere to form a reaction mixture; (2) heating the interior of a reaction bed containing a catalyst to 90-95 DEG C, continuously introducing hydrogen into the reaction bed, introducing the reaction mixture after the pressure intensity of the reaction bed is stable, and carrying out a catalytic hydrogenation reaction to generate a reaction product; and (3) carrying out gas-liquid separation on the reaction product, removing liquid ammonia from the liquid-phase product through an ammonia distillation process, and separating toluene and m-xylylenediamine through a rectification process to obtain m-xylylenediamine. According to the method, isophthalonitrile and hydrogen are used as raw materials, liquid ammonia and methylbenzene are used as reaction solvents, the raw materials and the reaction solvents are heated to 90-95 DEG C under the catalytic action of a catalyst for an exothermic reaction, m-xylylenediamine is generated through the reaction, and the reaction yield is larger than 99%.

The present invention relates to the field of the preparation of polyurethane elastic fibers, and relates to a preparation method for a bio-based polyurethane elastic fiber, comprising: preparing polyether polyol from sucrose, glycerol, dimethylamine and propylene oxide; adding a solvent, i.e., N,N-dimethylacetamide, and polyether polyol and polyisocyanate into a reaction tank, and adding p-Toluenesulfonyl semicarbazide and aluminum methylenebis(2,4-di-tert-butylphenoxy) phosphate to prepare a spinning solution; and subjecting the spinning solution to spinning and oil application by means of dry spinning technology to obtain the bio-based polyurethane elastic fiber. The present invention ensures that the properties of polyurethane elastic fibers do not deteriorate or are partially enhanced, while the cost and performance advantages are achieved.

The invention discloses a perovskite precursor solution, a perovskite solar cell and a preparation method of the perovskite solar cell. The perovskite precursor solution provided by the invention contains a perovskite precursor solute, a perovskite precursor solvent and an additive, the perovskite precursor solute contains lead halide, and further contains at least one of tin halide, formamidine halide, methylamine halide, cesium halide, dimethylamine halide and guanidine halide; the perovskite precursor solvent contains at least one of N, N-dimethyl formamide, dimethyl sulfoxide, N-methyl pyrrolidone, 2-methoxyethanol, valerolactone and acetonitrile, and the perovskite precursor solvent contains at least one of N, N-dimethyl formamide, dimethyl sulfoxide, N-methyl pyrrolidone, 2-methoxyethanol, valerolactone and acetonitrile; the additive contains an organic salt of trifluoromethyl acid. The opening voltage loss is reduced, the filling factor and the photoelectric conversion efficiency of the battery are improved, the precipitation of lead iodide is reduced in the crystallization annealing process, the volatilization of organic cations is inhibited, the non-uniform crystallization is improved, and the stability of the battery is improved.

The invention relates to the technical field of synthesis of metal organic complexes, in particular to a preparation method of a metal organic complex, and aims to solve the problems that the metal organic complex is tedious to prepare, low in yield, high in cost, incapable of meeting industrial production requirements and the like in the prior art. The preparation method of the metal organic complex comprises the following steps: carrying out Grignard reaction on a Grignard reagent and (dimethylamino) acetone to prepare a first product; wherein the Grignard reagent comprises R-MgX, R is selected from any one of C1-C2 alkyl groups, and X is selected from any one of chlorine, bromine and iodine; the general formula of the first product is as shown in the following formula (I): # imgabs0 # (I); carrying out a complexation reaction on the first product and a salt of a first metal M to prepare a metal organic complex; the general formula of the metal organic complex is as shown in the following formula (II): # imgabs1 # (II); m is selected from any one of copper and nickel.

The invention belongs to the technical field of stripping liquid, and particularly discloses water-based photoresist stripping liquid and a preparation method thereof. The water-based photoresist stripping liquid is prepared from the following raw materials in percentage by mass: 10 to 15 percent of quaternary ammonium salt compound, 15 to 25 percent of water-soluble organic solvent, 0.2 to 0.5 percent of alkanolamine substance, 0.03 to 0.05 percent of metal protective agent and the balance of deionized water, the quaternary ammonium salt compound is prepared by the following steps: reacting 6-heptene-1-alcohol with ethylene oxide to obtain a compound 1, carrying out amidation reaction on allyl glycidyl ether and dimethylamine to obtain a compound 2, and carrying out chlorination reaction on sodium 2-chloroethanesulfonate and the compound 2 to obtain a compound 3; and finally polymerizing the compound 1 and the compound 3 under the initiation action of azodiisobutyronitrile. All the components in the stripping liquid have a synergistic effect, so that the photoresist is effectively stripped, and the stripping liquid is free of residues, more efficient and good in corrosion-resistant effect.

The invention belongs to the technical field of polyether polyol preparation, and discloses a synthesis method of propylene glycol polyether. The synthesis method comprises the following steps: mixing propylene glycol, an organic boron catalyst and a cocatalyst, then introducing alkylene oxide at 10-80 DEG C for reaction, adding a solvent into a reaction system after the reaction is finished, and carrying out reduced pressure distillation, washing and drying to obtain propylene glycol polyether, the cocatalyst is selected from one or a combination of at least two of trimethylphosphine, triethylphosphine, triphenylphosphine, tris (dimethylamino) phosphine and tripyrrolidine phosphine. According to the invention, the organic boron catalyst and the cocatalyst phosphine salt are matched for use, and the cocatalyst is selected, so that the reaction can be carried out under a relatively wide temperature condition, and the propylene glycol polyether with controllable molecular weight and narrow distribution is prepared.

To provide a solventless siloxane composition which is solventless, excellent in temporal stability, and has a low refractive index of a cured film.SOLUTION: A solventless siloxane composition includes a siloxane compound having a structural unit derived from formula (1), and a terminal silanol group stopped by at least one selected from the group consisting of hexamethyldisilazane, chlorotrimethylsilane, trimethylsilyl acetate, N-(trimethylsilyl)diethyamine, N-trimethlysilyl acetoamide, and N-(trimethylsilyl)dimethylamine, where the refractive index of a cured film is 1.45 or lower. (In the formula (1), A1 is a univalent organic group having a radical-polymerizable double bond, A2 is an alkyl group or a siloxy group, and R1 is an alkyl group. Plural R1s may be the same or different. a is 0 or 1.)SELECTED DRAWING: None

The invention provides a synthesis method of tris (dimethylamino) cyclopentadienyl hafnium, which comprises the following steps: reacting hafnium tetrachloride with sodium dimethylamino at a first temperature under the protection of inert gas to form an intermediate; heating and settling, cooling to a second temperature, dropwise adding cyclopentadiene, and filtering, distilling and purifying to obtain a target product. According to the method, high yield and high purity are achieved by optimizing the raw material ratio and controlling the dropwise adding temperature and the use amount of cyclopentadiene. The byproduct sodium chloride is large in particle and easy to filter, the post-treatment process is remarkably simplified, and the process safety, controllability and industrial adaptability are improved.

The invention relates to the technical field of chemical synthesis, and discloses a preparation method of anhydrous N, N-dimethyl amino sulfuryl fluoride, which comprises the following steps: (1) introducing sulfuryl fluoride gas into a dimethylamine organic solution to carry out nucleophilic substitution reaction, and then adding triethylamine to obtain a mixed solution containing N, N-dimethyl amino sulfuryl fluoride; and (2) sequentially carrying out normal-pressure rectification and reduced-pressure rectification on the mixed solution containing the N, N-dimethyl amino sulfonyl fluoride to obtain the N, N-dimethyl amino sulfonyl fluoride. According to the method, water is not introduced in the whole process, the risk of water residue is avoided, and the prepared product is high in yield and purity.

The invention discloses a preparation method of a grafted polymer brush copolymer, which comprises the following steps: S1, mixing a styrene monomer, N-4-vinyl phenyl-N, N-dimethylamine, toluene and AIBN, heating, and reacting to generate a first section of polymer; and S2, mixing the first-section polymer with an acrylate monomer and an imide compound, and continuously reacting under an illumination condition to obtain the polymer brush copolymer. AIBN can be decomposed at high temperature to generate free radicals, polystyrene monomers are initiated to polymerize, and a first-section polymer is formed. The imide compound and a nitrogen-containing initiation site form a charge transfer complex under an illumination condition. The charge transfer complex can be dissociated to generate free radicals formed by nitrogen-containing initiation sites, and then the free radicals formed by the nitrogen-containing initiation sites initiate polymerization of acrylate monomers to obtain a grafted polymer brush copolymer. The preparation method is simple in reaction condition, simple and convenient to operate and suitable for industrial large-scale production.

The invention discloses a catalyst for preparing monomethylamine under the condition of high temperature of methanol and liquid ammonia, which has high monomethylamine selectivity and higher stability, and can greatly improve the dimethylamine return proportion in the existing monomethylamine process and reduce the production energy consumption of monomethylamine.

The invention discloses a preparation method of electronic-grade penta (dimethylamino) tantalum, and belongs to the technical field of materials.According to the method, tantalum pentachloride and dimethylamine react in advance to form an intermediate, then a penta (dimethylamino) tantalum product is formed through a trialkylamine complexation reaction, finally purification is achieved in a low-temperature recrystallization mode, the product purity is high, and the product purity is high. And moreover, product decomposition caused by a traditional purification mode is avoided, and the yield of the product is relatively high.

The invention discloses a ternary block copolymerization low-temperature demulsifier, a preparation method and an application in oil-water separation, polyether and anhydride are dissolved in a solvent to obtain a mixed solution, and the mixed solution is subjected to a reaction at 70-90 DEG C for 1-3 h to obtain a polyether anhydride solution; the preparation method comprises the following steps: adding epoxy chloropropane, dimethylamine, polyethyleneimine and an end-capping reagent into a polyether anhydride solution, and reacting at 90-100 DEG C for 4-5 hours to obtain a binary block copolymerization demulsifier; and adding polysiloxane into the binary block copolymerization demulsifier, and reacting at 110-140 DEG C for 4-5 hours to obtain the ternary block copolymerization low-temperature demulsifier. When 50 ppm of the demulsifier is added at 40 DEG C, the demulsifier can quickly demulsify a high polymer heavy oil-water system and remove water. The demulsifier disclosed by the invention is simple in synthesis step and mild in condition, has a potential application prospect and is expected to be applied to large-scale production of oil fields.

The invention relates to a synthesis method of 3-methoxy-N, N-dimethyl propionamide, and belongs to the technical field of organic synthesis. Methyl 3-methoxy propionate, N, N-dimethyl formamide and water are used as raw materials, Lewis acid is used as a catalyst, mixing heating, heat preservation stirring reaction and rectification are performed, and the 3-methoxy-N, N-dimethyl propionamide is obtained. According to the method, the methyl 3-methoxypropionate is used as a raw material, the N, N-dimethylformamide is used as a function substitute reagent of dimethylamine gas, the lewis acid is used as a catalyst, the raw material is wide in source and easy to transport and store, and high yield can be obtained through simple combination of several types of lewis acid catalysts. The method is simple and efficient in technological process, low in cost, high in reaction yield and few in by-product, and has a high industrial application prospect.

The invention provides a K-Zn composite carbon-based catalyst, a preparation method thereof and application of the K-Zn composite carbon-based catalyst in synthesis of 1, 2-difluoroethylene, and belongs to the technical field of hydrofluoroolefin synthesis. The preparation method comprises the following steps: firstly synthesizing a zinc-based anionic metal organic framework material (Zn-MOFs), then performing ion exchange with sylvite, and performing activating treatment in HCl-containing gas to obtain the K-Zn composite carbon-based catalyst. According to the invention, Zn-MOFs is adopted as a catalyst precursor, dimethylamine cations in the structure of the Zn-MOFs are subjected to ion exchange with potassium ions, and activation treatment is carried out in HCl gas to obtain the high-performance surface chlorinated K-Zn composite carbon-based catalyst. According to the prepared K-Zn composite carbon-based catalyst, 1, 2-dichloroethylene and HF can be subjected to HF addition reaction and HCl removal reaction, the target product 1, 2-difluoroethylene can be prepared through one-step reaction, the technological process is greatly shortened, and the reaction efficiency is improved.

The invention relates to the technical field of preparation of m-xylylenediamine, in particular to a process for producing m-xylylenediamine. Comprising the following steps: adding solid isophthalonitrile into a material dissolving unit, then introducing a solvent, stirring, and after the isophthalonitrile is completely dissolved, heating to obtain an isophthalonitrile solution; the method comprises the following steps: introducing an isophthalonitrile solution into a reaction unit, and carrying out hydrogenation reaction on the isophthalonitrile solution and hydrogen in a bed layer of a catalyst to obtain a crude product m-xylylenediamine; introducing the crude product m-xylylenediamine into a material receiving unit, separating gas from liquid, and rectifying and purifying the liquid to obtain m-xylylenediamine; the conversion rate of isophthalonitrile reaches 100%, the selectivity of m-xylylenediamine is 98% or above, and the catalyst is simple in preparation method and stable in performance.

The invention discloses a dimethylamine modified tetranuclear hetero-metal cluster compound as well as a preparation method and application thereof, belongs to the field of electrocatalytic oxygen evolution, and relates to a compound as well as a preparation method and application thereof. The invention aims to solve the problem of hydrogen energy shortage. The molecular formula of the dimethylamine modified tetranuclear hetero-metal cluster compound is [(CH3) 2NH2] [Ni (H2O) 6] [{NaNiSbW (OH) 4 (H2O) 6} {SbW8O30}]. 2H2O, and the molecular weight of the dimethylamine modified tetranuclear hetero-metal cluster compound is 2861.62. The method is used for alkaline electro-catalysis oxygen production. The preparation method comprises the following steps: preparing a Na9 [SbW9O33] precursor; the preparation method comprises the following steps: dissolving a Na9 [SbW9O33] precursor in deionized water, adding nickel nitrate, stirring, adding terephthalic acid, stirring, dropwise adding a NaOH solution, reacting for 2 hours, cooling, filtering, adding dimethylamine hydrochloride, evaporating and crystallizing at room temperature, and obtaining a hexagonal yellow crystal after three days. The overpotential of the dimethylamine modified tetranuclear hetero-metal cluster compound disclosed by the invention can reach 39.7 mV. The slope of Tafel is 19.75 mV / dec. And the slope of the fitted straight line is 4.51 mF / cm < 2 >. And the electrochemical transfer resistance is 1.9 ohm.

The present application discloses a polymer, a leveler and a preparation method thereof, an electroplating solution and an electroplating method, and belongs to the field of electroplating technology. The polymer includes a plurality of repeating units, and the repeating units include: a binary epoxy compound residue group and a nitrogen-containing group; the binary epoxy compound residue group is a residue formed after the epoxy bond of the binary epoxy compound is ring-opened; the nitrogen-containing group includes: an alkyl group, a dimethylamine group and a nitrogen-containing heterocyclic group connected to both ends of the alkyl group, respectively, and the dimethylamine group is also connected to the binary epoxy compound residue group through a single bond. The polymer is conducive to obtaining a highly coplanar coating at a high current density, and is particularly suitable for use as a leveler in an electroplating solution.

The invention discloses a method for preparing 1, 3-cyclohexanedimethylamine through one-step hydrogenation of isophthalonitrile. The invention aims to develop a strategy for synthesizing 1, 3-cyclohexanedimethylamine by using a novel, simple and efficient heterogeneous metal cobalt catalyst to catalyze and reduce 1, 3-isophthalonitrile. The reaction system is composed of 1, 3-isophthalonitrile, a heterogeneous cobalt catalyst, a solvent and hydrogen; the reaction temperature is 80-160 DEG C, the reaction pressure is 1-10 MPa, the molar ratio of hydrogen to isophthalonitrile is 10-200, and the weight ratio of isophthalonitrile to catalyst to solvent is 1: 0.3: 9. Isophthalonitrile can be converted into 1, 3-cyclohexanedimethylamine with high activity and high selectivity in a fixed bed reactor under the action of a catalyst. The catalyst has the advantages of simple preparation, good cycling stability, high yield and the like. The process aims to improve the yield and the product purity of the 1, 3-cyclohexanedimethylamine, reduce the energy consumption in the production process of the 1, 3-cyclohexanedimethylamine, and realize the breakthrough of the production technology of the 1, 3-cyclohexanedimethylamine.

The invention discloses an anticorrosive coating composition based on a nano hybrid and a preparation method of the anticorrosive coating composition, and relates to the technical field of powder coatings. Comprising the following components in parts by weight: 60-70 parts of fluorosilicone modified epoxy resin, 8-10 parts of an aminoethylated acrylic polymer, 4-8 parts of a functionalized nano hybrid, 4-6 parts of a curing agent, 0.3-1.2 parts of an accelerant, 1-2 parts of benzoin, 2-4 parts of a functional aid, 10-15 parts of a micron-sized filler and 1-2 parts of a coupling agent. The curing agent is prepared by compounding dicyandiamide, bicyclo [2.2. 1] heptane dimethylamine and 3, 5-diamino-1, 2, 4-triazole according to a mass ratio of (3 to 5): 1: (0.8 to 1.2). The coating composition is high in adhesive force and excellent in impact resistance and corrosion resistance.

The invention belongs to the field of functional epoxy resin industrial coiled materials, and particularly relates to a degradable and recyclable epoxy coiled material as well as a preparation method and a recycling method thereof. The invention provides an epoxy coiled material prepared by taking degradable epoxy resin as a matrix. The main components of the degradable epoxy resin comprise one or more of bisphenol A diglycidyl ether, neopentyl glycol diglycidyl ether, pentaerythritol tetraglycidyl ether, trimethylolpropane triglycidyl ether and glycerol triglycidyl ether; in addition, glutaric anhydride which helps to cure the resin and 2, 4, 6-tri (dimethylaminomethyl) phenol which helps to promote a curing reaction are compounded. According to the epoxy coiled material, degradable epoxy resin is used as an epoxy resin coating to be coated layer by layer by adopting a three-coating two-coating process method, and reinforced fibers are doped to obtain the high-strength epoxy coiled material with a multi-layer structure. The obtained epoxy coiled material is high in universality, simple in synthesis step and high in practicability and has the characteristics of being degradable and recyclable.

The invention relates to the technical field of soldering flux processing, in particular to a high-humidity type halogen-free soldering flux and a preparation method. The high-humidity type halogen-free scaling powder is prepared from, by weight, 20%-30% of a film-forming agent, 4%-8% of an active agent, 5%-10% of palm wax, 0.5%-1% of a corrosion inhibitor, 2%-5% of a thixotropic agent, 0.2%-0.6% of dimethylamine hydrochloride, 1%-2% of chlorinated rare earth salt, 5%-10% of a modifier and the balance solvent, and the modifier is obtained by mixing castor oil, octadecanamide and glycerin. The wettability of the halogen-free soldering flux prepared through the compound formula in the welding process is greatly improved, a molten pool is more stable, and welding defects are reduced. Meanwhile, due to the introduction of the modifier, especially the mixture of castor oil, octadecanamide and glycerol, the thermal stability of the scaling powder is improved, the risk that a traditional active agent is decomposed at high temperature is reduced, release of harmful gas and formation of residues are reduced, and the welding quality is guaranteed.

The invention discloses a B, N, Fe and O multi-element co-doped porous carbon-based material as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving a water-soluble carbohydrate and a water-soluble ferric salt in deionized water according to a certain ratio, adding dimethylamino borane and the like as a boron-nitrogen source, uniformly mixing under the ultrasonic action, and drying to form a carbon precursor compound; and placing the dried carbon precursor compound in a vacuum furnace for high-temperature carbonization to obtain the B, N, Fe and O multi-element co-doped porous carbon-based material. Iron salt, dimethylaminoborane and the like are respectively used as multi-element doping sources and pore-forming is carried out on the carbon matrix at the same time, so that a hierarchical pore structure is obtained. The multi-element co-doped porous carbon-based material with a hierarchical pore structure is constructed by adopting a simple method, abundant electrochemical active sites can be provided by doping multiple heteroatoms, and the electrochemical performance of a carbon matrix is improved. The material can be applied to supercapacitor electrodes and sodium ion battery materials.

The invention discloses a method for synthesizing N, N-dimethylformamide through electrochemical catalytic conversion of dimethylamine. The synthesis method provided by the invention comprises the following steps: by taking dimethylamine as a single substrate, carrying out in-situ electrochemical oxidation reaction to obtain N, N-dimethylformamide; a working electrode used in the in-situ electrochemical oxidation reaction is a composite electrode loaded with a co-oxide Cr2WO6 crystal. According to the synthesis method provided by the invention, only dimethylamine is used as a substrate, and the substrate is few in variety and low in concentration, so that the raw material cost is greatly reduced, and the damage of the high-concentration substrate to a catalyst and reaction equipment is reduced; in addition, the method is high in Faraday efficiency, has important practical application value for efficient resource utilization of dimethylamine, and has far-reaching significance in the aspect of carbon neutralization at present.