707 results about "Copper nitrate" patented technology

The invention relates to a preparation method of an amino-functionalized metal organic framework material and application of the prepared material to separation of CO2 / N2 and CO2 / CH4. The preparation method comprises the following steps: dissolving adenine and copper nitrate trihydrate in N, N '-dimethylacetamide to obtain a first mixed solution; dissolving carboxylic acid and potassium carbonate in deionized water to obtain a second mixed solution; and adding the second mixed solution into the first mixed solution, carrying out stirring reaction, and carrying out vacuum drying on an obtained solid product to obtain the amino-functionalized metal organic framework material. The amino-functionalized metal organic framework material prepared by the invention has high CO2 adsorption selectivity and adsorption capacity, and also has good acid-resistant, alkali-resistant and water-resistant stability. The amino-functionalized metal organic framework material prepared by the preparation method disclosed by the invention is applied to industrial CO2 adsorption separation and has an excellent separation effect.

The invention discloses a copper-based nano-enzyme, a preparation method thereof and application of the copper-based nano-enzyme in organophosphorus pesticide detection, and belongs to the technical field of pesticide residue detection. The copper-based nano-enzyme has a netted-like structure, a high specific surface area and many active sites, the valence state of a copper element is zero-valence Cu, Cu < + > and Cu < 2 + >, the copper-based nano-enzyme has high peroxidase-like activity and laccase-like activity, the detection limit is low, and glyphosate can be sensitively detected; and glyphosate, glufosinate-ammonium and isazofos can be well distinguished from six organophosphorus pesticides with medium concentration, and the method has high selectivity. The nano enzyme provided by the invention is prepared from ammonium citrate and copper nitrate in an N, N-dimethylformamide (DMF) solution by using a solvothermal method; the preparation process of the nano enzyme is simple.

The invention discloses a preparation method and application of amino-modified single-benzene-ring copper-based MOFs (metal organic frameworks), and the method comprises the following steps: dropwise adding a copper nitrate monohydrate solution into a diamino terephthalic acid solution, fully stirring to react, and centrifugally washing and drying the product to obtain the amino-modified single-benzene-ring copper-based MOFs. The amino-modified single-benzene-ring copper-based MOFs are used for electrocatalytic reduction of carbon dioxide. The prepared amino-modified single-benzene-ring copper-based MOFs have unique morphology, active sites can be exposed on the inner surface and the outer surface, the accessibility of the active sites is improved, and meanwhile the reaction mass transfer capacity is enhanced.

The invention discloses a method for catalytically oxidizing lignin to depolymerize into an aviation oil intermediate by using a cellulose carbon aerogel supported copper nano-catalyst. Comprising the following steps: (1) dissolving cellulose powder into a mixed alkali solution of NaOH and urea, and stirring at low temperature to obtain a clear and transparent cellulose solution; and washing to be neutral to obtain well dispersed cellulose suspension. And (2) carrying out suction filtration molding, and freeze-drying for a period of time to obtain the cellulose aerogel. And (3) immersing in an ethanol solution of copper nitrate for ultrasonic treatment, and drying in a vacuum drying oven. And (4) carrying out high-temperature calcination in an N2 atmosphere to obtain a catalyst which is marked as Cu / CA. And (5) the catalyst can efficiently catalyze a Fenton-like reaction to oxidize a dimer model compound of lignin in acidic, neutral and alkaline environments to obtain products including benzoic acid, acetophenone, benzyl alcohol, phenol and the like, the required hydrogen peroxide concentration is low, and the catalyst has the advantages of simple process, high catalytic activity, low cost and the like, can be used for effectively degrading lignin to prepare aviation oil intermediates, and has wide application prospects. And repeated cyclic utilization is realized.

The invention discloses a low-smoke flame-retardant cable outer layer material, and a preparation method of key components and a high-entropy alloy nano material comprises the following steps: grinding cerous nitrate, ferric nitrate, manganous nitrate, sodium hexahydroxyplatinate and copper nitrate into particles according to a ratio of 2: 1: 1: 1: 1; then adding 10-20 times by mass of a 32% tannic acid solution and 5-8 times by mass of a 10% glutaraldehyde solution, carrying out an oil bath at 65-70 DEG C for a reaction for 4-8 h, then carrying out overnight vacuum freeze drying to obtain mixed powder, placing the mixed powder in a crucible of a muffle furnace, then calcining the mixed powder at 1000-1200 DEG C under the protection of nitrogen flow for 4-10 h, and finally cooling the calcined mixed powder to room temperature. And cooling. The prepared outer layer material for the cable overcomes the defects that a conventional cable easily releases a large amount of toxic smoke during combustion, is poor in flame retardant property and contains halogen to pollute the environment.

The invention provides a preparation method of a Fenton-like catalytic material for selectively removing phenolic pollutants, the Fenton-like catalytic material and application of the Fenton-like catalytic material, and belongs to the technical field of water treatment.The preparation method comprises the steps that light MgO is added into a copper nitrate solution to be stirred for a reaction, obtained precipitates are filtered, washed and dried, and copper hydroxide nanoparticles are obtained; dispersing the copper hydroxide nanoparticles in a cerium nitrate solution for hydrothermal reaction, and filtering, washing and drying the obtained precipitate to obtain a Ce (at) Cu (OH) 2-IE intermediate; and calcining the Ce (at) Cu (OH) 2-IE intermediate to obtain the Fenton-like catalytic material CC-IE. The prepared catalytic material can efficiently activate PMS to generate singlet oxygen, utilizes an oxidative polymerization mechanism to stably remove organic phenol pollutants in water, and has the advantages of high electron utilization rate, selective oxidation, non-free radical path degradation and high TOC removal rate.

The invention relates to a high-barrier antibacterial polylactic acid packaging material and a preparation method thereof, and belongs to the technical field of biodegradable packaging materials. The technical problems that a traditional polylactic acid material is insufficient in barrier property, poor in antibacterial performance and difficult to meet the packaging requirements of livestock and poultry meat, food and medicine are solved. A graphene oxide lamellar material is subjected to copper ion functionalization treatment and is bridged with tannic acid molecules through copper ions to form a nano filler, and then the filler is blended with a plasticized polylactic acid solution to prepare the membrane. The preparation method comprises the following steps: preparing a copper ion functionalized dispersion liquid from graphene oxide and copper nitrate, self-assembling the copper ion functionalized dispersion liquid and tannic acid under the condition that the pH is 8-10 to generate a nanofiller, uniformly dispersing the nanofiller, mixing the nanofiller with polylactic acid, polyethylene glycol and glycerol according to a specific mass ratio, coating to form a film, and controlling solvent volatilization conditions to obtain the high-performance packaging material. According to the method, the oxygen barrier property and the antibacterial activity of the material are remarkably improved through uniform dispersion of the nanofiller and reinforcement of a coordination network. The obtained material is suitable for packaging foods such as livestock and poultry meat.

The invention discloses a preparation method and application for directly growing CuCoO2 on foamed nickel, and the preparation method comprises the following steps: dissolving copper nitrate, cobalt nitrate and a mineralizer in a solvent, intensely stirring to form a suspension A, then transferring the suspension A into a high-pressure kettle, and carrying out vacuum drying to obtain CuCoO2; meanwhile, the foamed nickel is placed in a polytetrafluoroethylene flower basket and then placed in an autoclave to be heated for a hydrothermal reaction, and after the hydrothermal reaction is finished, the foamed nickel is cooled to the room temperature. According to the method, the CuCoO2 electrode with the foamed nickel substrate can be prepared in one step, compared with a method for preparing CuCoO2 powder and then transferring the CuCoO2 powder to an electrode plate, the needed time is short, operation is easy, the electrode material is uniform, and the method can be widely applied to related fields as an efficient photoelectric functional material electrode preparation method.

A method of forming a gas generant according to various implementations includes the steps of providing a mixture of copper nitrate and water and adding melamine and guanidine carbonate to the copper nitrate and water mixture at room temperature. Next, the melamine, guanidine carbonate, copper nitrate, and water mixture is mixed and heated to form a melamine nitrate, guanidine nitrate, basic copper nitrate, and water mixture. The heating and mixing step may be performed at a temperature in the range of 50° C. to 60° C. for at least 20 minutes. Then, the melamine nitrate, guanidine nitrate, basic copper nitrate, and water mixture is dried to form the gas generant comprising melamine nitrate, guanidine nitrate, and basic copper nitrate. The method may further comprise a step of adding an additional fuel, an additional oxidizer, or an additive. Also disclosed is a gas generant made by the method described above.

The invention discloses a CCTO dielectric ceramic, and belongs to the technical field of dielectric ceramic synthesis. Calcium nitrate tetrahydrate, copper nitrate trihydrate, tetrabutyl titanate and niobium oxalate hydrate are used as raw materials, a precursor solution is prepared according to the molar ratio of calcium to copper to titanium to niobium being 1: 3: 4-x: x, the PH is adjusted, colloid obtained after aging is dried and ground, then high-temperature sintering is conducted in a muffle furnace, tabletting is conducted after the colloid is mixed with an adhesive, annealing is conducted, and finally the high-density, good-uniformity and high-temperature-resistant titanium-titanium alloy is obtained. And the single-doped CaCu3Ti (4-x) NbxO12 ceramic sample has the advantages of low dielectric loss and high dielectric constant.

The invention relates to a method and a system for efficiently removing lead from high-lead gold-loaded carbon desorption electrolysis gold mud. The method comprises the following steps: baking pretreatment; pyrogenic process smelting; performing gold-silver-copper-lead alloy sheet forming; separating gold, silver, copper and lead alloy: separating gold by nitric acid; removing lead from sponge gold; removing lead from silver nitrate; recycling copper nitrate and the like. The system comprises a trolley furnace and a rotary intermediate frequency furnace connected with the trolley furnace, and a discharging opening of the rotary intermediate frequency furnace is sequentially connected with a lifting intermediate frequency furnace, a water-quenching bead splashing barrel, a gold separation kettle, a first-stage separation reaction kettle and a second-stage separation reaction kettle. A liquid outlet of the secondary separation reaction kettle is sequentially connected with a silver nitrate transfer tank, a silver reaction kettle, a filter tank, a transfer tank, a copper nitrate storage tank and a copper nitrate reaction kettle. According to the method, the lead removal procedure is added after nitric acid separation of the gold-silver-copper-lead alloy and silver nitrate chlorination precipitation, lead impurities in sponge gold and sponge silver produced in the wet smelting process can be efficiently removed, the gold content and the silver content of gold ingot and silver ingot products obtained through smelting are both larger than 99.9%, and therefore it is guaranteed that the quality of the products reaches the standard.

The invention belongs to the technical field of chemical analysis and detection, and relates to a method for rapidly detecting sodium ions in cigarette paper by nano-enzyme laccase. According to the method, 2-aminoterephthalic acid, copper nitrate and cerous nitrate are taken as precursors, polyvinylpyrrolidone is taken as a stabilizer, and a solvothermal method is adopted to synthesize the copper-cerium-containing MOF-based nano-enzyme with laccase-like activity, namely Cu / Ce-BDC-NH2 nano-enzyme; cu / Ce-BDC-NH2 nano-enzyme oxidizes 2, 4-dichlorophenol and 4-aminoantipyrine to obtain a red product, the potassium pyroantimonate ligand is adsorbed on the surface of Cu / Ce-BDC-NH2 to inhibit catalytic action, so that laccase-like activity is reduced, Na < + > is introduced to react with potassium pyroantimonate to generate a stable complex, the activity of Cu / Ce-BDC-NH2 laccase is recovered, and the red color of a solution is deepened. The invention establishes a novel colorimetric rapid detection method for sodium ions.

The invention discloses a high-sulfur-tolerance SCR honeycomb denitration catalyst and a preparation method thereof, and belongs to the technical field of industrial catalysts.The preparation method comprises the steps that S1, anatase type TiO2 and NH4HCO3 are mixed for pulping, pre-drying and calcination are conducted after extrusion forming, and a green body is formed; s2, carrying out nitric acid treatment on the green body, dipping the green body in a mixed solution of copper nitrate hydrate and cerium nitrate hydrate, and carrying out vacuum dipping, microwave drying and two-stage calcination to obtain a desulfurization carrier; s3, depositing an ammonium metatungstate precursor on the surface of the desulfurization carrier through CVD, and calcining to form a WO3 transition layer; and S4, dipping the transition layer in an acid solution containing NH4VO3 and ammonium metatungstate, and calcining after ultrasonic treatment to obtain a finished product. According to the method, the pore structure of the carrier is optimized through chambering treatment, and the stability and denitration efficiency of the catalyst in high-sulfur flue gas are remarkably improved by combining a multistage sulfur-resistant mechanism that the desulfurization layer preferentially captures SO2, the WO3 transition layer obstructs sulfur penetration and the denitration layer is protected by active sites.

The invention discloses a doped zirconium dioxide / copper oxide composite catalyst and a preparation method and application thereof.The preparation method comprises the steps that sodium hydroxide, basic zirconium carbonate and transition metal nitrate are added into deionized water to obtain a mixed solution, the mixed solution is subjected to a hydrothermal reaction and then diluted to obtain a reaction solution, H2O2 is added into the reaction solution, and the doped zirconium dioxide / copper oxide composite catalyst is obtained. Centrifuging and drying to obtain a reaction product; adding water into the reaction product to form a turbid liquid, adding a copper nitrate trihydrate solution into the turbid liquid, adding a sodium carbonate aqueous solution to adjust the pH value to 9-10, and then stirring, standing, carrying out suction filtration, drying and roasting to obtain the transition metal doped zirconium dioxide / copper oxide catalyst. The transition metal doped zirconium dioxide / copper oxide catalyst prepared by the preparation method has relatively high catalytic activity and relatively high stability in an acidic electrolyte.

The invention relates to the technical field of sewage purification treatment in environmental protection, and discloses a preparation method and application of a Cu / Cu2S / Ti3C2 composite material, and the preparation method comprises the following steps: preparing a copper nitrate solution by using an ethanol / water mixed solution, adding formic acid into the copper nitrate solution, dropwise adding ammonia water, carrying out hydrothermal reaction, cooling, filtering and separating, washing and drying to obtain Cu / Cu2O; dispersing the Cu / Cu2O in a mixed solution of ethanol / water, adding thiourea, carrying out hydrothermal reaction, cooling, centrifuging and drying to obtain Cu / Cu2S; the preparation method comprises the following steps: adding Cu / Cu2S into an ethanol / water mixed solution, uniformly stirring, adding the Ti3C2 nanosheet, and carrying out ultrasonic dispersion, hydrothermal reaction, cooling, filtration separation, washing and drying to obtain the Cu / Cu2S / Ti3C2 composite material. According to the method, multivalent iodine can be effectively removed, and the copper utilization rate is increased.

The invention discloses a spherical cerium dioxide loaded copper oxide nano-catalyst and a preparation method and application thereof, the preparation method comprises the following steps: dispersing spherical cerium dioxide in ethanol to obtain a dispersion liquid; adding a copper nitrate solution into the dispersion liquid, and stirring for a period of time to obtain a mixed solution; and drying the mixed solution by distillation, drying and roasting to obtain the spherical cerium dioxide loaded copper oxide nano-catalyst. The active component of the spherical cerium dioxide loaded copper oxide nano-catalyst adopts the loaded copper oxide nano-particles, has good catalytic activity and improves the reaction rate, in addition, the spherical cerium dioxide is adopted as the carrier, has excellent specific surface area and good structural stability, can improve the dispersity of the active component, and can improve the catalytic activity of the catalyst. And the catalyst has high chemical stability and thermal stability, can maintain good catalytic performance at high temperature and high pressure, and prolongs the service life of the catalyst.

The invention discloses a silver-based tin oxide electric contact material and a preparation method thereof, and relates to the technical field of electric contact materials. When the silver-based tin oxide electric contact material is prepared, firstly, a high-temperature solid-phase method is used for doping lithium and cerium to prepare doped tin oxide powder; stannic chloride and copper nitrate are prepared into a fiber membrane through electrostatic spinning, meanwhile, titanium dioxide is grown in situ through nano spraying, and doped stannic oxide fibers are prepared after calcination; the doped tin oxide powder, doped tin oxide fibers and silver powder are subjected to high-energy ball milling and powder mixing and then annealed, and silver-based tin oxide composite powder is obtained; the silver-based tin oxide composite powder is subjected to pre-pressing forming and then subjected to vacuum discharge plasma sintering, and the silver-based tin oxide electric contact material is prepared. The prepared silver-based tin oxide electric contact material has the advantages of being low in resistivity, high in fusion welding resistance, good in arc erosion resistance and easy to machine and shape.

The invention discloses a Cu-doped Bi2O2CO3 nanosheet catalyst as well as a preparation method and application thereof, and belongs to the technical field of electrocatalytic carbon dioxide reduction. The preparation method comprises the following steps: 1) uniformly stirring and mixing water, acetic acid and ammonia water in a reaction container to form a mixed solution I, weighing copper nitrate and bismuth nitrate, adding the weighed copper nitrate and bismuth nitrate into the mixed solution I, and stirring to form a mixed solution II; and 2) transferring the mixed solution II into a reaction kettle, putting the reaction kettle into a drying oven for hydrothermal reaction, and after the hydrothermal reaction, naturally cooling, centrifuging, washing, drying and grinding to obtain Cu-doped Bi2O2CO3 nanosheet catalyst powder. The catalyst is obtained through a one-step hydrothermal method and has excellent selectivity and good stability on reduction of carbon dioxide into formic acid through electro-catalysis, the performance is excellent, the preparation method is simple, the cost of raw materials is low, the yield is high, and large-scale production is easy.

The invention discloses a preparation method and application of a copper-doped Ni-MOF catalyst, and the preparation method comprises the following steps: adding copper nitrate, nickel nitrate and terephthalic acid into a solvent composed of N, N-dimethylformamide, absolute ethyl alcohol and deionized water, and carrying out uniform ultrasonic treatment to prepare a mixed solution; transferring the mixed solution into a high-pressure reaction kettle with a polytetrafluoroethylene lining, and heating for reaction; after the reaction is finished, cooling to room temperature, taking out the reaction kettle, and centrifuging, washing and drying reactants to obtain the catalyst. According to the preparation method of the copper-doped Ni-MOF catalyst, the conduction effect of electrons in the reaction process can be enhanced, and the electrochemical ammoxidation reaction rate can be increased.

The invention relates to the technical field of thermite, in particular to a thermite system of an ultralow condensed phase combustion product and a preparation method of the thermite system. The preparation method of the aluminothermic system comprises the following steps: S1, synthesizing nanoscale BiF3 particles; s2, immersing a mixed oxidizing agent into a copper nitrate solution, dropwise adding ammonia water into a system, reacting for a period of time, standing and aging the reaction system, performing centrifugal separation, washing, and performing vacuum freeze drying to obtain BiF3-coated TACN core-shell structure particles; and S3, adding the acid-activated nano aluminum powder and the BiF3-coated TACN core-shell structure particles into an n-hexane medium, carrying out ultrasonic treatment, and drying to obtain thermite powder. Through the high reaction interface of the nano-scale bismuth-based fluoride and the activation strategy of the high-energy gas production compound on the interface, the output of ultralow condensed phase combustion products and the efficient release of system energy are realized.

The invention discloses a zeolite / silver / copper ternary inorganic nano antibacterial and antiviral material as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a mixed solution of a template agent and an anchoring agent, loading a metal precursor, adding a silicon source, performing hydrothermal crystallization and performing post-treatment. According to the zeolite / silver / copper ternary inorganic nano antibacterial and antiviral material disclosed by the invention, Ag-Cu bimetallic nanoparticles are formed by introducing copper nitrate and silver together, so that the catalytic activity, selectivity and stability of the zeolite / silver / copper ternary inorganic nano antibacterial and antiviral material are remarkably enhanced, and the dosage of noble metal silver can be reduced.

The present invention discloses a preparation method and application of a cuprous oxide-boron nitride flower S-type heterojunction composite photocatalyst. The preparation process is as follows: boron nitride flower and copper nitrate are dispersed in water, copper nitrate is chemically reduced by hydrazine hydrate on the surface of the boron nitride flower, cuprous oxide is grown in situ, and then freeze-dried to obtain a cuprous oxide-boron nitride flower S-type heterojunction composite photocatalyst. The present invention successfully constructs a boron nitride flower and cuprous oxide heterojunction, utilizes a catalytic interface formed by the composite of the two catalysts, regulates a multivalent Cu(I) / Cu(II) site, promotes the directional transmission and accumulation of photogenerated carriers to the Cu(I) / Cu(II) site, and finally realizes the ability of photocatalytic CO2 ethanolization. The present invention is easy to operate and repetitively stable.

The invention discloses a catalyst for preparing trichlorosilane and a catalytic preparation method of trichlorosilane. The catalyst is prepared from the following components in percentage by mass: weighed copper nitrate, zinc nitrate, aluminum nitrate, lanthanum nitrate and the balance of a carrier, the preparation method comprises the following specific steps: S1, filling a catalyst; S2, purifying raw material gas; S3, reacting; and S4, separating and purifying a product, namely discharging a reacted gas product from an outlet of a reactor, and condensing through a condenser. In the prepared catalyst, the activity and selectivity of the catalyst are remarkably improved through the synergistic effect of the copper-zinc-aluminum composite oxide and the rare earth element lanthanum, the electronic structure and the surface acid-base property of the catalyst can be adjusted through doping of lanthanum, the reaction of silicon powder and hydrogen chloride is promoted, meanwhile, side reactions are inhibited, and the service life of the catalyst is prolonged. And the yield of trichlorosilane is improved.

The invention belongs to the technical field of iron ion detection, and particularly relates to a rapid detection method for ferric ions in water, which comprises the following steps: a fluorescent probe preparation step: taking trihydrate of copper nitrate and tryptamine, adding into a centrifuge tube in sequence, adding ultrapure water, performing ultrasonic dissolution, transferring into a high-pressure reaction kettle, and performing hydrothermal reaction to obtain a fluorescent probe; cooling to room temperature, centrifuging the obtained yellow green solution in a centrifugal machine, and filtering the supernate through a microfiltration membrane to obtain a copper-doped carbon quantum dot CuCDs stock solution, namely the fluorescent probe; analyzing and determining Fe < 3 + >: taking the diluent of the prepared CuCDs solution, adding the diluent into a centrifugal tube containing a Fe < 3 + > standard solution, uniformly mixing, carrying out fluorescent quantitative analysis and detection, and exploring the change rule of the fluorescence intensity ratio of CuCDs; according to the rapid detection method for Fe < 3 + > provided by the invention, the synthesized CuCDs have high sensitivity, can realize on-site rapid detection of Fe < 3 + > in a water medium, and shows a wide application prospect in the field of environmental monitoring.

The invention discloses a carbon microsphere coated CuTCPP efficient nano lubricating additive with a core-shell structure as well as a preparation method and application thereof, and relates to the technical field of nano materials. The method comprises the following steps: by taking glucose as a raw material and oxalic acid as a catalyst, carrying out hydrothermal reaction to prepare nano carbon microspheres; dissolving copper nitrate trihydrate in N, N-dimethylformamide, adding the nano carbon microspheres, and stirring in a water bath to obtain a suspension A; dissolving meso-tetra (4-carboxyphenyl) porphin in N, N-dimethylformamide to obtain a solution B, and uniformly dispersing the solution B in the suspension A to obtain a suspension C; and pouring the suspension C into a polytetrafluoroethylene reaction kettle, and carrying out hydrothermal reaction to obtain the carbon microsphere coated CuTCPP efficient nano lubricating additive. The prepared carbon microsphere coated CuTCPP composite nano lubricating additive has the advantages of being good in lubricating effect and simple in preparation process, and compared with base oil, the average friction coefficient is reduced by 57.5%, and the wear rate is reduced by 46.6%.

The invention relates to the technical field of polymer waste treatment, and discloses a composite curing agent for curing chlorine and sulfur in polymer waste microwave thermal conversion and a preparation method and application thereof, and the method comprises the following steps: dissolving calcium nitrate and aluminum nitrate in deionized water to form an active component I solution; dissolving at least one of zinc nitrate, copper nitrate, ferric nitrate, manganese nitrate and cerium nitrate as an active component II in the active component I solution, adding citric acid into the formed mixed solution to form gel, and drying to obtain an active matter; and mixing the active matter, silicon carbide and bentonite, ball-milling, extruding and granulating, and calcining to obtain the composite curing agent. The composite curing agent disclosed by the invention can efficiently recover pyrolytic carbon, pyrolytic oil and pyrolytic gas while effectively and synergistically curing chlorine and sulfur pollution elements in situ; the curing rate of the chlorine / sulfur element can reach 80%, the recovery rate of the composite curing agent can reach 98%, and meanwhile, the raw material cost is low, and the problems of secondary pollution and equipment corrosion are avoided.

The invention discloses a NiCu-based alloy catalyst for preparing high-value products through natural gas decarbonization and application of the NiCu-based alloy catalyst, and belongs to the technical field of natural gas high-value catalytic conversion. The preparation method of the NiCu-based alloy catalyst comprises the following steps: (1) adding nickel nitrate hexahydrate and urea into hot water, adding ethylene glycol, carrying out a stirring reaction at 120-150 DEG C, and calcining the obtained intermediate to obtain a nickel oxide precursor; (2) adding a copper nitrate aqueous solution and ammonia water into the nickel oxide precursor, so that copper ions are anchored on the surface of nickel oxide, drying and calcining to obtain a Ni-Cu alloy oxide precursor; and (3) adding the Ni-Cu alloy oxide precursor, bismuth trioxide and metallic tin into deionized water, adding a complexing agent, carrying out ultrasonic treatment, and carrying out H2 reduction calcination on the obtained precipitate to obtain the Ni < x > Cu < y > Bi < z > Snm alloy. The NiCu-based alloy catalyst is used in a natural gas decarburization high-value product preparation reaction, and the natural gas decarburization reaction is sufficient, and long-term efficient conversion and stable operation are achieved by combining the synergistic effect of ultrasonic waves and an alternating magnetic field.

The invention discloses a high-impact polyphenylsulfone composite material and a preparation method thereof, and relates to the technical field of polymer materials. When preparing the high-impact polyphenylsulfone composite material, the present invention reacts 3-mercapto-1,3-propylene glycol and 4-mercaptophenyl boric acid to obtain bis-mercapto borate; reacts 3-mercapto-1-propylamine and 2-pyridine formaldehyde and then reacts with copper acetate to obtain a pyridine Schiff base copper complex; 4,4'-difluorodiphenyl sulfone, decafluorodiphenyl sulfone, biphenyl diphenol, 2,2'-diallyl bisphenol A are polycondensed to obtain functionalized polyphenylsulfone; nano-montmorillonite is sequentially reacted with copper nitrate and allyl triethoxysilane to obtain modified montmorillonite; functionalized polyphenylsulfone, modified montmorillonite, bis-mercapto borate, and pyridine Schiff base copper complex are mixed and then injection molded to obtain a high-impact polyphenylsulfone composite material. The high-impact polyphenylsulfone composite material prepared by the present invention has excellent self-repairing, impact resistance, antibacterial and hydrophobic properties.

The present invention discloses a nano copper-based catalyst, its preparation method, and its application in the electrocatalytic reduction of carbon dioxide and carbon monoxide. Copper chloride (or copper nitrate, copper acetate) is dissolved in ultrapure water, and a sodium borohydride solution is added dropwise. Stir at room temperature for 5-60 min, filter, and dry to obtain a nano copper catalyst. Further, through a displacement reaction, nano copper-palladium and copper-silver catalysts are obtained. The present invention is applied to the electrocatalytic reduction of carbon monoxide. In a membrane electrode assembly (MEA) electrolyzer, the Faraday efficiency of multi-carbon products (C2+) reaches up to 95%, the partial current density reaches up to 3 A cm-2, and the overall electrolyzer energy efficiency reaches up to 39%. It can stably electrolyze for 30 hours at 1 A cm-2. This nano copper catalyst is applied to the electrocatalytic reduction of carbon dioxide. In an MEA electrolyzer, the Faraday efficiency of C2+ reaches up to 66%, and the partial current density reaches up to 331 mA cm-2.

The invention provides a preparation method of an ErBCO superconducting target, and belongs to the technical field of oxide target materials.The preparation method comprises the steps that firstly, erbium nitrate, barium nitrate, copper nitrate, high-purity water, a dispersing agent and a binding agent are sequentially mixed, and then mixed powder is obtained through segmented ball milling and spray granulation; then the ErBCO superconducting target material is prepared through the method that the mixed powder is sequentially subjected to calcination, cold sintering and drying treatment, the effect of reducing the cost while the performance such as the density of the target material is improved is achieved through the cold sintering process, and the ErBCO superconducting target material has the advantages that the ceramic sintering temperature is remarkably reduced, and the sintering time is remarkably shortened.