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37 results about "Cupric chloride dihydrate" patented technology

Copper(II) chloride is the chemical compound with the chemical formula CuCl2. This is a light brown solid, which slowly absorbs moisture to form a blue-green dihydrate. The copper(II) chlorides are some of the most common copper(II) compounds, after copper sulfate.

Preparation method for synthesizing super-long wurtzite structure Cu2ZnSnS4 nanorod in one step through solvothermal method

The invention discloses a preparation method for synthesizing a super-long wurtzite Cu2ZnSnS4 nanorod in one step through a solvothermal method. The preparation method is used for the technical field of photovoltaic cell materials. The method includes the steps that reactant precursors, namely, copper chloride dihydrate, zinc chloride, stannic chloride pentahydrate and L-cysteine, ethylene glycol, oleylamine, oxalic acid and hexadecyl trimethyl ammonium bromide are added to an autoclave, the reaction temperature is raised to a certain temperature, the thermostatic reaction is conducted for a period of time, then, a heating device is taken out, so that the reactants are cooled, methylbenzene and ethyl alcohol are added to the cooled reactants, and then nano particles are precipitated; then centrifugation is conducted for a certain time at a certain rotating speed, the upper-layer solution is poured out, the lower-layer precipitate is collected, centrifugation is repeated multiple times till the solution is clear, precipitate is collected, and finally the high-quality super-long wurtzite Cu2ZnSnS4 nanorod is obtained. The preparation method has the advantages that preparation is simple, the super-long wurtzite Cu2ZnSnS4 nanorod can be synthesized in one step, the synthesis temperature is low, the adopted precursor materials are low in cost, crystallinity is excellent, and the preparation method is suitable for batch synthesis.
Owner:SHANGHAI UNIV

Preparation method of CuS/ZnS/g-C3N4 ternary composite photocatalyst

The invention relates to the technical field of photocatalysts, in particular to a preparation method of a CuS / ZnS / g-C3N4 ternary composite photocatalyst. A CuS / ZnS / g-C3N4 ternary heterostructure is directly obtained by the preparation method of the CuS / ZnS / g-C3N4 ternary composite photocatalyst through a one-step calcination method. The preparation method comprises the following specific steps: first step: mixing a certain amount of copper chloride dehydrate, zinc chloride and trithiocyanuric acid to form a precursor mixture; and second step: uniformly grinding the mixture, putting the mixture into a tubular furnace for calcination, washing the obtained product with distilled water and anhydrous ethanol, and drying the product, thus obtaining the CuS / ZnS / g-C3N4 ternary composite photocatalyst. The steps are simple; in the photocatalytic reaction, the preparation method is relatively high in photo-induced electron and hole separation efficiency; the raw materials of the ternary composite photocatalyst are easy to obtain and low in cost; the reaction conditions are mild and cause no pollution to the environment; and the preparation method is favorable for industrial production.
Owner:常州科力尔环保科技有限公司

Lithium ion battery aluminum plastic film damage detecting method

The invention provides a lithium ion battery aluminum plastic film damage detecting method, which comprises the following steps: (1) detecting liquid preparation: copper chloride, ethyl alcohol, normal butanol, sodium dodecyl benzene sulfonate, polyacrylamide and water are mixed to be prepared into detecting liquid; (2) inspection: an aluminum plastic film to be inspected is put into the detecting liquid prepared in the first step and is soaked for a certain time; then, the change of the surface of the aluminum plastic film is observed; if reddish-brown copper is separated out of the surface of the aluminum plastic film, the condition that the aluminum plastic film is damaged is judged; if no any change occurs on the surface of the aluminum plastic film, the condition that the aluminum plastic film is not damaged is judged. The method has the advantages that the operation is flexible and simple; the cost is low; whether the aluminum plastic film is subjected to mechanical damage or not can be fast and accurately detected, so that the quality of a manufactured battery is ensured; the safety performance of the battery is improved.
Owner:DONGGUAN ZHUOYUE NEW MATERIAL TECH CO LTD

Copper (II) chloride chelate using 1-pyridyl-beta-carboline as ligand and synthetic method and application thereof

The invention discloses a copper (II) chloride chelate using 1-pyridyl-beta-carboline as a ligand and a synthetic method and application thereof. The structural formula of the copper (II) chloride chelate is shown as a formula (I). The preparation method of the chelate comprises the following steps that a compound shown in a formula (II) and copper chloride dihydrate are dissolved in a polar solvent to conduct a coordination reaction, and the copper (II) chloride chelate is obtained. The copper (II) chloride chelate performs an anti-tumor activity stronger than the anti-tumor activity of the ligand and cisplatin and has good potential medicinal value, and the copper (II) chloride chelate is expected to be used for preparing various anti-tumor medicines. Please see the structural formula (I) and the formula (II) in the specifications.
Owner:GUANGXI NORMAL UNIV

Water-system complex-formulation electrolyte and preparation method and application thereof

The invention relates to a water-system complex-formulation electrolyte and a preparation method and application thereof, and solves the technical problem of low energy density of a present super capacitor. Sodium sulfate serves as a basic electrolyte, and a complex prepared by combining cupric chloride dihydrate providing metal ions and a surfactant tetrabutyl ammonium bromide serves as an electrolyte addictive. The invention provides the preparation method and application of the electrolyte. The water-system complex-formulation electrolyte and preparation method and application thereof can be widely applied to the field of electrochemistry.
Owner:BEIJING UNIV OF CHEM TECH

Cupric chloride (II) chelate compounds by using 1-pyridyl-beta-carboline as ligand, and synthesis method and application thereof

The invention discloses cupric chloride (II) chelate compounds by using 1-pyridyl-beta-carboline as a ligand, and a synthesis method and application thereof. The structural formula of the cupric chloride (II) chelate compounds is disclosed as Formula (I). The preparation method comprises the following steps: taking compounds disclosed as Formula (II) and cupric chloride dihydrate, dissolving in a polar solvent, and carrying out coordination reaction. The cupric chloride (II) chelate compounds have higher antineoplastic activity than the ligand and cis-platinum, have favorable potential medicinal value, and are expected to prepare various antineoplastic drugs. The Formula (I) and Formula (II) are disclosed as the following structures.
Owner:GUANGXI NORMAL UNIV

Copper metal-organic framework material based on metal copper and preparation method and application thereof

The invention discloses a copper metal-organic framework material based on metal copper. The molecular formula of the copper metal-organic framework material is C18H11N4O10.5 Cu2; the preparation method comprises the following steps: S1, adding copper chloride dihydrate, benzimidazole diacid and sodium carbonate into an N, N-dimethylformamide solution; s2, cooling the solution obtained in the step S1 to room temperature, adjusting the pH value, heating to 80 DEG C, and cooling to room temperature; s3, filtering the solution to obtain a precipitate, cleaning the precipitate with an N, N-dimethylformamide solution, and grinding after high-temperature drying to obtain a copper metal-organic framework material; s4, sequentially soaking the metal organic framework material obtained in the step S3 in methanol and dichloromethane for three days respectively; s5, activating the metal organic framework material obtained in the step S4 under a vacuum condition; and removing the solvent to obtain the metal organic framework material. The technical problem that sterol molecules in tobaccos are difficult to effectively remove from cigarettes due to large and stable structures is solved, and the material has the advantages of large pore diameter, mild reaction conditions, high yield and high adsorption.
Owner:HENAN AGRICULTURAL UNIVERSITY

Preparation method and application of AlOOH nanosheet-based 0D/2D composite material

The invention belongs to the technical field of preparation of nano materials, and discloses a preparation method of an AlOOH nanosheet-based 0D / 2D composite material, and the method comprises the following steps: preparing a sea urchin-like copper oxide-boehmite (CuO / AlOOH) nano composite material by using a hydrothermal method; using copper chloride dihydrate and aluminum chloride hexahydrate asraw materials, urea as a precipitator and deionized water as a solvent for perform a constant-temperature reaction at a specific temperature, and preparing a uniformly dispersed urchin-shaped CuO / AlOOH nano material through centrifugal separation, sample washing and drying. The prepared 0D / 2D nano composite material efficiently catalyzes sodium borohydride to reduce p-nitrophenol through two processes of adsorption and hydrogenation. The method is simple in preparation process, short in period and low in cost, can be used for large-scale industrial production, and has good economic benefitsand environmental benefits.
Owner:FUZHOU UNIV

Foamed nickel substrate loaded copper cobaltate nanowire array material and preparation method thereof

The invention relates to a foamed nickel substrate loaded copper cobaltate nanowire array material and a preparation method thereof. According to the technical scheme, the preparation method comprisesthe following steps of: dissolving copper chloride dihydrate, cobalt chloride hexahydrate and urea in deionized water, and stirring to obtain a mixed solution, transferring the mixed solution into ahigh-pressure reaction kettle, immersing the pretreated foamed nickel into the mixed solution, carrying out hydrothermal reaction for 10-12 hours, cooling, washing and drying to obtain a precursor, and putting the precursor into a tubular atmosphere furnace, heating to 400-450 DEG C in an air atmosphere, keeping the temperature, and cooling to obtain the foamed nickel substrate loaded copper cobaltate nanowire array material. The copper cobaltate nanowires of the prepared product are combined with foamed nickel of a three-dimensional hole structure to form a three-dimensional structure in which foamed nickel holes and closely-arranged nanowires are nested. The method has the characteristics of simple process, convenience in operation and environmental friendliness. The prepared foamed nickel substrate loaded copper cobaltate nanowire array material is regular in morphology, high in specific capacity, good in rate capability and excellent in cycle performance.
Owner:WUHAN UNIV OF SCI & TECH

Nano-copper and preparation method thereof

The invention discloses nano-copper and a preparation method thereof. The preparation process adopts copper chloride dihydrate as the precursor of copper, green ascorbic acids as a reducing agent andpolyvinyl pyrrolidone as a protective agent, a mixed system of glycerol and deionized water serves as solvents in the whole reaction process, and nano-copper particles can be prepared simply and efficiently. Compared with the preparation of nano-copper by a polyol method, because the mixed solvent of the glycerol and the deionized water plays a role in shortening the reaction time, nano-copper with smaller particle sizes can be prepared in a shorter time. The production cost is reduced, the viscosity of a reaction system is reduced, and cleaning of by-products is facilitated. According to thepreparation method, raw materials are easily obtained, the process is simple, the energy consumption is low, agglomeration is less, and the preparation method is easy to implement. The nano-copper particles prepared by the method are small, dispersed well and agglomerated less.
Owner:SHAANXI UNIV OF SCI & TECH

Method for preparing high-purity copper chloride dehydrate by regulating and controlling copper-containing sludge through SiO2

The invention belongs to the technical field of solid waste treatment, and discloses a method for preparing high-purity copper chloride dehydrate by regulating and controlling copper-containing sludgethrough SiO2. The method comprises the following steps: drying, grinding and sieving the copper-containing sludge, adding SiO2 and hydrochloric acid according to a certain ratio and uniformly stirring; and roasting the obtained mixture in a flowing air atmosphere at the temperature of 700-1200 DEG C and condensing the volatilized product to obtain CuCl2. 2H2O. With application of the method, 95-97% of copper in the copper-containing sludge can be recovered and the purity of the prepared product is about 95%. The method is simple in process, small in secondary pollution and high in product application value; the method is a breakthrough in the technical field of heavy metal waste residue recycling, solves the problems of complex process, high cost, high secondary pollution and the like ofthe copper extraction technology of the copper-containing sludge, provides a new thought for preparation of copper chloride dehydrate and heavy metal recovery of other heavy metal waste residues and is remarkable in environmental and economic benefits.
Owner:SOUTH CHINA UNIV OF TECH

Porous Cu7S4/Cu (OH)2 composite nanofiber material and preparation method thereof

The invention belongs to the technical field of inorganic nano material preparation, and particularly relates to a porous Cu7S4 / Cu (OH)2 composite nanofiber material and a preparation method thereof.The preparation method includes: adopting a water solution of copper chloride dihydrate and thiourea in ethylene glycol to generate [Cu(tu)] Cl.1 / 2H2O at normal temperature and at pressure; converting[Cu(tu)] Cl.1 / 2H2O in a strong alkali solution into the porous Cu7S4 / Cu(OH)2 composite nanofiber material. The composite nanofiber material is of a nanofiber structure composed of Cu7S4 and Cu(OH)2 nano crystals in uniform distribution, a ratio of Cu7S4 to Cu(OH)2 is 1:2-2:1, and fiber diameter is 75-85nm; the composite nanofiber material has mesopores, pore size distribution is 2-25nm, pore sizeof 70-85% of the mesopores is 5-7nm, pore volume exceeds 0.2cm3 / g, and surface specific area exceeds 100m2 / g. the composite nanofiber material is suitable for the field of solar cells, secondary cells, supercapacitors, LEDs, air-sensitive sensors, photoelectric conversion switches, thermocouples, optical coupling, light filters, fluorescent materials and superconductors.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Preparation method and application of copper-indium composite catalyst

The invention discloses a preparation method and application of a copper-indium composite catalyst, and belongs to the technical field of material preparation and electro-catalysis. The composite cuprous oxide and indium hydroxide electrocatalyst is prepared by taking cupric chloride dihydrate CuCl2. 2H2O, anhydrous indium chloride InCl3, stronger ammonia water, sodium hydroxide and hydrazine solution N2H4 as raw materials, feeding in batches, co-precipitating under a normal temperature condition, introducing an In-based material into a pure cuprous oxide Cu2O material, and developing the high-performance composite cuprous oxide and indium hydroxide electrocatalyst for electrocatalytic reduction of carbon dioxide for the first time. The prepared electrocatalyst has the advantages of being large in specific surface area and good in electrocatalytic performance. The preparation process is simple and convenient, the energy consumption is low, the cost is low, and the application potential is great.
Owner:FUZHOU UNIV

Copper-doped lattice strain quantum dots and preparation method thereof

The invention discloses copper-doped lattice strain quantum dots and a preparation method thereof. The preparation method comprises the following steps: (1) dissolving cadmium chloride or cadmium acetate, zinc acetate or zinc chloride, cupric chloride dihydrate and glutathione in a mole ratio of 1:(1.5-4):(0.025-0.05):(5-10) in water to obtain a mixed solution, wherein the concentration of the cadmium chloride or cadmium acetate is 0.2-0.6 mmol / l; and (2) regulating the pH value of the mixed solution obtained in the step (1) to 10.5-11.5, heating the mixed solution at 93-98 DEG C to react for 30-120 minutes, and cooling to room temperature, thereby obtaining the copper-doped lattice strain quantum dots. A metal bath heating process is utilized to prepare the small-particle-size quantum dots which are adjustable from the visible light region to the near-infrared region; and thus, the method is simple and convenient, and has the advantages of mild reaction conditions, short time, favorable reproducibility, favorable monodispersity and the like.
Owner:SHENZHEN INST OF ADVANCED TECH

Hollow copper sulfide nano-drug carrier, and preparation method and application thereof

The invention discloses a hollow copper sulfide nano-drug carrier, and a preparation method and application thereof. According to a technical scheme in the invention, copper chloride dihydrate, polyvinylpyrrolidone, sodium hydroxide, ascorbic acid and sodium sulfide are used as raw materials, and black solid hollow copper sulfide nanoparticles are prepared; and the prepared hollow copper sulphide nanoparticles are complexed with a tumor chemotherapeutic drug, namely a tetravalent platinum drug, and modified amino functionalized polyethylene glycol terminal methyl ether under the coordination action of a copper element and a nitrogen element to obtain the hollow copper sulfide nano-drug carrier. The preparation method has the characteristics of simplicity in operation, high safety, mild reaction conditions, controllable reaction process and low cost; and the prepared hollow copper sulfide nano-drug carrier is good in hydrophilicity, small in size, favorable for in-vivo circulation and low in reagent toxicity in a preparation process.
Owner:WUHAN UNIV OF SCI & TECH

CuCo-BDC ultrathin nanosheet, preparation method and application thereof

The invention discloses a CuCo-BDC ultrathin nanosheet, a preparation method and application thereof. The preparation method comprises the following steps: dissolving copper chloride dihydrate, cobalt chloride hexahydrate and terephthalic acid in a mixed solution of N, N-dimethylformamide, ethanol and deionized water in an ultrasonic manner; and stirring the solution obtained in the previous step, adding triethylamine in a stirring state, then putting the solution into an ultrasonic machine for ultrasonic treatment, then centrifuging, cleaning the product obtained after centrifuging with ethanol multiple times, and drying to obtain Cu / Co-BDC powder, namely the CuCo-BDC ultrathin nanosheet. According to the invention, the Cu / Co-BDC ultrathin nanosheet with the optimal performance is obtained by regulating and controlling the proportion of metal elements, and then the Cu / Co-BDC ultrathin nanosheet is directly used as a lithium ion battery negative electrode material, wherein the average discharge potential of the material is improved by doping Cu<2+> ions, the Cu<2+> ions and Co<2+> form a bimetal organic framework, and the electrochemical lithium storage performance of the material is further improved through the coordination effect of bimetal ions.
Owner:HEFEI UNIV OF TECH

Corrosion-resistant antibacterial antistatic coating and preparation method thereof

The invention discloses a corrosion-resistant antibacterial antistatic coating and a preparation method thereof. The coating is prepared from the following raw materials in parts by weight: 100 parts of hydroxyl acrylate emulsion, 1-5 parts of a nano composite material and 15-30 parts of a hydrophilic modified curing agent, wherein the nano composite material is a ternary nano composite material polyaniline / copper / zirconium oxide, the polyaniline / copper / zirconium oxide is prepared by taking copper chloride dehydrate as an oxidizing agent and adopting an in-situ polymerization method, and the mass ratio of aniline to copper chloride dehydrate to zirconium oxide is 1: 5: (0.1-0.3). After the coating prepared by adopting the technical scheme is applied to the surface of a base material, the following effects are achieved: firstly, the coating has a good antibacterial effect; secondly, a good antistatic effect can be achieved; thirdly, a good corrosion-resistant effect is achieved; and fourthly, the paint has good paint film performance.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

Preparation method of electronic-grade copper chloride dehydrate

The invention relates to the technical field of preparation of copper chloride, in particular to a preparation method of electronic-grade copper chloride dehydrate, which is characterized by comprising the following steps: dissolving copper salt in a first hydrochloric acid solution to obtain a copper salt solution; wherein the copper salt solution is subjected to solid-liquid separation twice to obtain a filtrate, the two times of solid-liquid separation are not sequential and comprise adhesion separation and coprecipitation separation, the adhesion separation is solid-liquid separation after waste PCB powder is added and continuously stirred, and the coprecipitation separation is solid-liquid separation after a tin chloride compound is added and continuously stirred; and adding second hydrochloric acid into the filtrate to adjust the pH value, evaporating and concentrating to obtain a supersaturated solution, adding copper chloride seed crystal, cooling and crystallizing, and centrifugally separating to obtain an electronic-grade copper chloride dehydrate product. The preparation process disclosed by the invention is simple to operate, low in cost, small in environmental pollution and suitable for industrialization.
Owner:DONGJIANG ENVIRONMENTAL

Organic-metal framework catalyst for catalytic degradation of antibiotics and preparation method of organic-metal framework catalyst

The invention relates to an organic-metal framework catalyst for catalytic degradation of antibiotics and a preparation method of the organic-metal framework catalyst. The preparation method of the organic-metal framework catalyst comprises the following steps: (1) mixing an ethylene glycol solution of copper chloride dihydrate and an N,N-dimethylformamide solution of terephthalic acid, carrying out stirring for 1-2 hours, and performing crystallizing to obtain a precipitate produced by a reaction; and (2) washing the precipitate, and drying the precipitate to obtain the organic-metal framework catalyst. According to the organic-metal framework catalyst for catalytic degradation of antibiotics and the preparation method of the organic-metal framework catalyst in the invention, organic pollutants are subjected to photocatalytic degradation by utilizing the organic-metal framework catalyst, so effective removal of organic pollutants can be realized; and the catalyst has the advantages ofconvenient operation, low cost, simple treatment process, good removal effect and high repeated utilization rate, realizes effective and rapid degradation of the organic pollutants and has good application prospects in actual treatment of antibiotic wastewater.
Owner:WUHAN TEXTILE UNIV

Ni-Cu LDH electrocatalyst with nanoflower structure, preparation method and application thereof

The invention relates to the technical field of catalysts, and discloses a Ni-Cu LDH electrocatalyst for nitrate radical reduction and a preparation method thereof. The Ni-Cu LDH electrocatalyst is prepared from the following raw materials: zinc nitrate hexahydrate, urea, triethylene glycol and copper chloride dihydrate. According to the invention, the Ni-Cu LDH electrocatalyst is of a nanoflower structure and is used for nitrate radical reduction; the Ni-Cu LDH electrocatalyst prepared by the method has a sheet structure, is high in BET and high in catalytic efficiency, and shows excellent structure and electrochemical durability; and the synthesis method has the advantages of simple process, low energy consumption, mild conditions and good product morphology, and is suitable for large-scale production and application.
Owner:HANGZHOU NORMAL UNIVERSITY

A photocatalyst cu 3 vs 4 preparation method

The invention discloses a photocatalyst Cu 3 VS 4 The preparation method includes the following process: copper chloride dihydrate (CuCl 2 ·2H 2 O), ammonium metavanadate (NH 4 VO 3 ) and thiourea (CH 4 N 2 S) Mix and grind evenly, transfer the powder to a hydrothermal reaction kettle for high-temperature reaction; after the reaction is naturally cooled, wash the product in the kettle with distilled water, stir and let stand, separate the solid, and dry it at about 60°C to prepare A kind of photocatalyst Cu 3 VS 4 , the method is simple to operate, energy-saving, and the product has catalytic performance.
Owner:HENAN ACAD OF AGRI SCI +2

A TiO2 and CuO composite porous material for a supercapacitor and a preparation method thereof

The invention provides a TiO2 and CuO composite porous material for a supercapacitor and a preparation method thereof, belonging to the technical field of electrode materials. The composite porous material has an ordered porous structure, and as the electrode material of the supercapacitor, can effectively reduce the expansion and contraction generated in the charging and discharging process, andkeep the structure stable. The preparation method of the composite porous material comprises the following steps: placing a slide in an ethanol solution of polystyrene microspheres, evaporating ethanol to form a polystyrene film by self-assembly; P123 is stirred and dissolved in ethanol, isopropyl titanate and hydrochloric acid are added, titanium tetrachloride is added dropwise, and cupric chloride dihydrate is added to obtain composite precursor solution of titanium dioxide and cupric oxide; The glass slide loaded with polystyrene film was inserted into the composite precursor solution obliquely, and the ethanol was evaporated to induce the self-assembly of the composite precursor on the polystyrene film. TiO2 and CuO composite porous materials were obtained by calcination in muffle furnace.
Owner:CRRC QINGDAO SIFANG ROLLING STOCK RES INST

A kind of aqueous compound electrolyte and its preparation method and application

The invention relates to a water-system complex-formulation electrolyte and a preparation method and application thereof, and solves the technical problem of low energy density of a present super capacitor. Sodium sulfate serves as a basic electrolyte, and a complex prepared by combining cupric chloride dihydrate providing metal ions and a surfactant tetrabutyl ammonium bromide serves as an electrolyte addictive. The invention provides the preparation method and application of the electrolyte. The water-system complex-formulation electrolyte and preparation method and application thereof can be widely applied to the field of electrochemistry.
Owner:BEIJING UNIV OF CHEM TECH

Dehydration Sensitive Time Indicating Device

The invention relates to a dehydration sensitive time indicating device. A dehydration-sensitive time indicating device, characterized in that it comprises: a base layer; a first base material layer, which forms a first storage body capable of blocking gas with the base layer; a dry adsorption layer, which is stored in the first storage body In the body, the dry adsorption layer contains a dry adsorption material that can absorb moisture; the second base material layer forms a second container that can block gas with the first base material layer, and the second base material layer is transparent material; and an indicating functional layer, accommodated in the second container, the indicating layer contains a dehydration discoloration material, and the dehydration discoloration material is selected from copper sulfate pentahydrate, cobalt chloride hexahydrate, trichloride hexahydrate At least one of iron and copper chloride dihydrate; the dehydration sensitive time indicating device also includes at least one of a barrier layer and an adhesive layer, and the barrier layer can be attached to the second substrate layer or On the surface of the base layer, the adhesive layer is stacked on the surface of the base layer away from the first substrate layer. The above dehydration sensitive time indicating device can avoid pollution to the external environment.
Owner:SHENZHEN NINE STARS PRINTING & PACKAGING GRP

Preparation method of copper-antimony monatomic alloy catalyst and application of copper-antimony monatomic alloy catalyst in reduction of carbon dioxide

The invention provides a preparation method of a copper-antimony monatomic alloy catalyst and carbon dioxide reduction application, and belongs to the technical field of metal nano catalysts.The preparation method comprises the steps that a mixed solution A in which antimony chloride and citric acid are dispersed and a solution B in which copper chloride dihydrate is dispersed are prepared and jointly mixed with hydrochloric acid and deionized water, and a mixed solution C is obtained; and after standing in an ice bath, pouring a sodium borohydride aqueous solution for standing reaction, and after multiple times of centrifugation, washing, drying and grinding, obtaining the copper nanoparticles loaded with antimony atoms with different concentrations and mutually isolated antimony atoms. By loading mutually isolated antimony atoms on the copper nanoparticles and adjusting the electronic state of the copper atoms, the copper nanoparticles lose the ability of carbon-carbon coupling to generate multi-carbon products, have extremely high selectivity and activity for converting carbon dioxide into carbon monoxide, and provide an effective way for industrial-grade efficient conversion of carbon dioxide.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Preparation method of copper nanowires uniform in shape

The invention discloses a preparation method of copper nanowires uniform in shape. The copper nanowires are characterized in that the copper nanowires are in the appearance of brick-red powder after being dried, and are in a uniform wire-shaped structure according to the shape, the average particle size is 35 nm, and the average length is 20 microns. The preparation method includes the specific steps that firstly, cupric chloride dihydrate and acetylacetone nickel with the molar ratio of 2: 1 are dissolved in a moderate amount of oleylamine, and are placed in a reaction kettle inner container made from polytetrafluoroethylene, a moderate amount of nitrogen or argon is introduced to remove air, then a reaction kettle is placed in a drying box, reactants are made to fully react under a certain temperature condition, after a reaction ends, the reactants are made to be naturally cooled to a certain temperature, and by means of repeated centrifuging, supersonic washing treatment and vacuum drying, brick-red copper nanowire samples small in particle size and uniform in shape can be obtained. The preparation method is simple in process, a reaction solvent can be cyclically utilized, the reaction process is environment-friendly, and the obtained copper nanowires can be stored in n-hexane at room temperature for a long time.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY
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