53results about How to "High single output" patented technology

The invention discloses a preparation method for a delafossite-structure AgCrO2 nanocrystalline material, in particular to a low-temperature hydro-thermal synthesis method for rapidly preparing a delafossite-structure AgCrO2 nanocrystalline material. The preparation method comprises the following steps: regulating a reaction precursor constituent, a reaction temperature and the filling rate parameter of reaction solution in a hydro-thermal reaction kettle, reacting at 190-230 DEG C for 36-60 hours, carrying out centrifugal cleaning treatment on the reaction product for multiple times, and drying at 60 DEG C in a vacuum drying oven for 24-48 hours, thereby finally obtaining the AgCrO2 nanocrystalline material with the size of 10-20 nm. The method is simple to operate, easy in control over process parameters, pollution-free, high in yield, and capable of being widely used in photoelectric function devices such as transparent conductive oxides.

The invention relates to the field of preparation of delafossite-structured crystal materials, particularly relates to preparation of a CuCoO2 crystal material at a low temperature by utilizing a hydrothermal process, and more particularly relates to a low-temperature preparation method of the delafossite-structured CuCoO2 crystal material. The method is characterized in that a low-temperature hydrothermal reaction is utilized, reaction precursor components, the reaction temperature and the filling coefficient of a filling liquid in a hydrothermal reactor are regulated, and after Co(NO3)<2>.6H2O and Cu(NO3)<2>.3H2O are reacted at 100-120 DEG C for 12-36 h, a reaction product is subjected to centrifugal cleaning treatment and drying to obtain the crystal material the particle size of which is 1-4 microns. The method when compared with other CuCoO2 crystal material preparing methods has advantages of an ultralow temperature, a high yield, a low cost and low pollution.

The invention discloses a Pt / C catalyst of a fuel cell. The Pt / C catalyst is characterized in that the mass fraction of Pt in the Pt / C catalyst is 60%, and the Pt / C catalyst comprises the following raw material components in parts by weight: 1-2 parts of a carbon black carrier, 100-200 parts of deionized water, 200-350 parts of a reducibility polyhydric alcoholic solution with 15-30g / L chloroplatinic acid hexahydrate, 30-100 parts of reducibility polyhydric alcohol, and 10-40 parts of 1M aqueous alkali. Compared with the prior art, the catalyst prepared by the preparation technology provided by the invention has the advantages that the electrochemical active area is large, the technology is simple, and the single-pass output is high.

The invention discloses a large-scale preparation method for a wurtzite Cu2ZnSnS4 nanocrystal, belonging to the field of photoelectric material new-energy technology. The method comprises the following steps: weighing a monovalent copper salt, a zinc salt and a tin salt, adding the monovalent copper salt, the zinc salt and the tin salt into a three-neck flask, adding oleylamine as a solvent and successively carrying out heating and cooling to room temperature; adding 1-dodecanethiol and carbon disulfide as sulfur sources, carrying out a reaction under heating and then carrying out cooling to room temperature; carrying out centrifugation and discarding supernatant; carrying out cleaning with a mixed solution of hexane, methanol and ethanol a plurality of times and collecting a precipitate; and drying the precipitate so as to obtain the wurtzite Cu2ZnSnS4 nanocrystal. The method provided by the invention is simple, great in output and high in yield and can produce plural grams of the wurtzite Cu2ZnSnS4 nanocrystal at a time; the output of the method at a time is one magnitude order higher than the output of conventional methods; and the prepared nanocrystal has an easily regulable atomic ratio, and an ideal wurtzite Cu2ZnSnS4 nanocrystal can be obtained by simply changing the ratio of a precursor.

The invention provides a low-temperature deep frying device and a method for deep frying food to be deep fried. The low-temperature deep frying device comprises a deep frying groove, a material inlet / outlet door, an oil inlet / outlet, a heating tube arranged in the deep drying groove, a vacuum device for making the interior of the deep frying groove reach a vacuum state, a deep frying main air cylinder for adjusting the deep frying position, a material inlet / outlet door air cylinder a for driving the material inlet / outlet door to descend or ascend, a material inlet / outlet door air cylinder b for driving the material inlet / outlet door to be opened or closed, an oil level meter for detecting the height of the oil level, a temperature gauge for detecting the oil temperature, and an electromagnetic valve used for receiving an oil temperature signal and controlling the deep frying main air cylinder, the material inlet / outlet door air cylinder a and the material inlet / outlet door air cylinder b, wherein the material inlet / outlet door and the oil inlet / outlet are communicated with the deep frying groove. According to the low-temperature deep frying device, the amount of oil injected into the deep frying groove and the temperature of the oil in the deep frying groove can be known through the oil level meter and the temperature gauge; through the deep frying main air cylinder, the position of a material inlet basket can be adjusted so that articles, to be deep fried, in the material inlet basket can make full contact with the oil.

The invention discloses a manufacturing method of a high-reliability and high-thermal-conductivity diamond reinforced metal matrix composite material, and relates to a manufacturing method of a composite material. The method aims to solve the problems that an existing diamond reinforced metal matrix composite material is low in thermal conductivity, and the reliability is reduced. The method comprises the steps of carrying out cold pressing on diamond powder with a coating to obtain a diamond blank, carrying out spark plasma sintering under the vacuum or inert atmosphere protection to obtain a diamond preformed body, placing the diamond preformed body and a mold on the platform surface of a press, pouring a molten metal matrix to the top of the diamond preformed body in the mold, and carrying out pressure infiltration. According to the method, the coating on the diamond surface is sintered by spark plasma sintering to form a continuous heat conducting passage, so that the heat conducting property of the material is improved. The coating easily reacts with the diamond to generate carbide metal and is stable, so that the reliability of the manufactured composite material is improved. The method is suitable for manufacturing the diamond reinforced metal matrix composite material.

The invention discloses a low-temperature preparation method for a CuFeO2 crystal material of a delafossite structure, in particular to a low-temperature hydrothermal synthesis method for rapidly preparing the CuFeO2 nanocrystalline material of the delafossite structure. The method comprises the steps that parameters including reaction precursor components, the reaction temperature and the filling rate of a reaction solution in a hydrothermal reaction kettle are regulated and controlled through a low-temperature hydrothermal reaction, reactants including Cu(NO3)2 and FeCl2 react for 12 hours to 48 hours at the temperature ranging from 100 DEG C to 160 DEG C, and then, after a reaction product is processed through centrifugal cleaning and dried, the nanoscale CuFeO2 crystal material is obtained. The low-temperature preparation method for the CuFeO2 crystal material of the delafossite structure is easy to operate, the technological parameters are easy to control, no pollution is caused, the yield is high, and the method can be widely used for photoelectricity functional devices such as transparent conducting oxide.

The present invention adopts a working solution for preparing hydrogen peroxide by an anthraquinone method, including solute 2-ethylanthraquinone and a solvent system for dissolving 2-ethylanthraquinone, and the solvent system includes solvent heavy aromatic hydrocarbon, trioctyl phosphate , o-methylcyclohexyl acetate, the volume ratio of heavy aromatic hydrocarbons, trioctyl phosphate, and o-methylcyclohexyl acetate is 78:23:8. The working fluid designed by the present invention can increase o-methylcyclohexyl acetate to replace part of trioctyl phosphate, can effectively improve the solubility of anthraquinone in the working fluid solvent system, thereby improving oxidation efficiency and hydrogenation efficiency, and can effectively improve the production of hydrogen peroxide The single output of the process can effectively reduce the production cost.

The invention discloses a preparation method for morphology-controllable hematite for degrading environmental pollutants. The method comprises the following steps: 1) dropwise adding 1-6mol / L alkali liquor into a ferric salt solution with Fe<3+> concentration of 0.1-1mol / L till the solution is neutral; 2) adding reductive-form ascorbic acid into the obtained product at the mole ratio of reductive-form ascorbic acid to Fe<3+> of (0.5-2):100 and adjusting pH value till being neutral; 4) performing high-temperature ageing on the acquired product, cooling and then centrifugally separating solid precipitate. The invention provides the method for chemically precipitating and quickly compounding a large number of pure hematite spheroid with excellent crystalline degree, uniform size distribution, monodispersity and controllable morphology at one time in the presence of reducing agent ascorbic acid. The hematite has an excellent degrading performance for the environmental pollutants and especially has an excellent effect for degrading toxic organic wastewater, such as degradation rate for methylene blue reaching up to 96.50%.

The invention belongs to the technical field of plating of various films on glass, plastic and ceramic substrates, and particularly relates to a full automatic electronic beam deposition system. The full automatic electronic beam deposition system comprises a technological cavity, a loading cavity, a transmission cavity, a vacuum pumping system and a full automatic transmission mechanism, wherein the technological cavity, the loading cavity and the transmission cavity are sequentially communicated; the technological cavity, the loading cavity and the transmission cavity are all connected with the vacuum pumping system, and the full automatic transmission mechanism automatically takes sample substrates out of and put in the technological cavity and the loading cavity. The full automatic electronic deposition system has a high yield, reduces the air pumping time of the technological cavity after a sample loading plate is changed each time. The full automatic electronic deposition system simultaneously carries out the technological process of the technological cavity and the process of taking the sample loading plate out of and putting in the loading cavity; and except for a technological cavity door and a loading cavity door arranged inside a clean room, the other parts can be put in common environments, so that the cost is lowered.

The invention relates to a preparation method of a wurtzite CMTS nano-crystal and belongs to the new energy source technical field of photovoltaic materials and devices. The preparation method comprises the following steps: adding a copper source, a manganese source, a tin source and sodium dodecyl benzoate into an organic solvent and dissolving; then raising the temperature to 100 to 120 DEG C ata constant speed to obtain a precursor solution; sequentially adding n-dodecyl mercaptan and carbon disulfide into the precursor solution and uniformly mixing; raising the temperature to 140 to 180 DEG C at a constant speed and reacting for 15 to 60min; then raising the temperature to 250 to 300 DEG C at a constant speed and reacting for 30 to 60min to obtain a reaction system; cooling to room temperature; centrifuging to separate a solid and liquid; washing the solid for 3 to 5 times by adopting an organic washing solution and drying to obtain the wurtzite Cu2MnSnS4 nano-crystal. The wurtzite Cu2MnSnS4 nano-crystal prepared by the invention has the advantages of great production and high yield; the atom ratio of the nano-crystal is easy to regulate and control and the average grain diameter of the wurtzite Cu2MnSnS4 nano-crystal is a nano-grade.

The invention discloses a preparation method of 1*1-type manganese oxide octahedral molecular sieve (pyrolusite, beta-MnO2) nano-rods, and especially relates to a preparation method which is used for synthesizing single-phase 1*1-type manganese oxide octahedral molecular sieve nano-rods having good crystallinity under the conditions of non-pressurized heating reflux so that a large amount of the 1*1-type manganese oxide octahedral molecular sieve nano-rods are synthesized by one step. The preparation method provided by the invention is characterized in that a mixed solution containing one or more salts of single divalent manganese, permanganates and strong acids undergoes a reflux reaction to produce the 1*1-type manganese oxide octahedral molecular sieve nano-rods under the control of a concentration, a temperature and time. The preparation method allows mild reaction conditions, can be operated simply, can be controlled easily, has low energy consumption, produces low pollution and has a high single yield. The 1*1-type manganese oxide octahedral molecular sieve nano-rods obtained by the preparation method can be used for catalysts, magnetic materials and chemical power source materials.

The invention discloses a Pt / C catalyst for a fuel cell. The mass fraction of Pt in the Pt / C catalyst is 60%. -200 parts, 200-350 parts of reducing polyol solution of 15-30g / L chloroplatinic acid hexahydrate, 30-100 parts of reducing polyol, 10-40 parts of 1M alkali solution. Compared with the prior art of the same kind, the catalyst prepared by the invention has large electrochemical active area, simple process and high single output.

The invention provides a method for silk-screening monochrome gradient effect patterns. The method includes arranging mesh plates of areas where gradient effect patterns are silk-screened into patternholes that are gradually changed from large to small or from small to large, wherein mesh yarn in the mesh plates are selected from silk screens of 90 T - 120 T; arranging UV light curing adhesive layers including the pattern holes on the double surfaces of the mesh yarn; silk-screening a gradient effect pattern ink layer formed by monochrome on a printed object, the angle of a scraper during silk-screening being 60-70 DEG, the speed of printing being 10-15 times / min, and the thickness of the ink layer of the silk-screening being more than 15 microns; covering the ink layer with underpaintingink after the gradient effect pattern ink layer is fixed, wherein the thickness of the covered underpainting ink layer is more than 3 microns; and obtaining a target product after the underpainting ink layer is fixed. The method can be realized by using existing common silkscreen equipment, so that the method is convenient in operation, simple in printing and plate making, low in cost and strongin adaptability, and can realize monochrome gradient silkscreen effects.

The invention discloses a bottom dropping method of a three-ton smelting furnace. The method comprises the following steps of: A, proportioning; B, building the furnace, (1) before bedding of the furnace, examining whether induction coil cement falls, repairing the fallen part and necessarily drying after repair, (2) ramming a furnace bottom, (3) ramming a furnace body and (4) ramming a furnace collar; and C, roasting the furnace, wherein the furnace roasting time is 10-18 hours. The smelting furnace produced by the invention is solid and stable and has high resistance and superior integral quality, the erosion to the furnace wall by slag is reduced, the capacity of the charge is large, one-time yield is high, and the production difficulty and the production cost are reduced.

The invention relates to a preparation method of a wurtzite CMTS nano-crystal and belongs to the new energy source technical field of photovoltaic materials and devices. The preparation method comprises the following steps: adding a copper source, a manganese source, a tin source and sodium dodecyl benzoate into an organic solvent and dissolving; then raising the temperature to 100 to 120 DEG C ata constant speed to obtain a precursor solution; sequentially adding n-dodecyl mercaptan and carbon disulfide into the precursor solution and uniformly mixing; raising the temperature to 140 to 180 DEG C at a constant speed and reacting for 15 to 60min; then raising the temperature to 250 to 300 DEG C at a constant speed and reacting for 30 to 60min to obtain a reaction system; cooling to room temperature; centrifuging to separate a solid and liquid; washing the solid for 3 to 5 times by adopting an organic washing solution and drying to obtain the wurtzite Cu2MnSnS4 nano-crystal. The wurtzite Cu2MnSnS4 nano-crystal prepared by the invention has the advantages of great production and high yield; the atom ratio of the nano-crystal is easy to regulate and control and the average grain diameter of the wurtzite Cu2MnSnS4 nano-crystal is a nano-grade.

The invention provides a preparation method of a graphene oxide-Brianite composite, comprising the following steps: reacting zinc sulfate heptahydrate and urea in water for the first time, adding graphene oxide dispersion liquid, and reacting again to obtain graphite oxide ene-brianite complex. This application provides a preparation method of graphene oxide-Brianite composite. The preparation raw materials of this preparation method are all non-hazardous chemicals, the preparation process is safer, and the preparation time is short. Generally, it can be completed in 7-8 hours. And the yield of graphene oxide-brianite prepared in one time is high.

The invention discloses a preparation method for a delafossite-structure AgCrO2 nanocrystalline material, in particular to a low-temperature hydro-thermal synthesis method for rapidly preparing a delafossite-structure AgCrO2 nanocrystalline material. The preparation method comprises the following steps: regulating a reaction precursor constituent, a reaction temperature and the filling rate parameter of reaction solution in a hydro-thermal reaction kettle, reacting at 190-230 DEG C for 36-60 hours, carrying out centrifugal cleaning treatment on the reaction product for multiple times, and drying at 60 DEG C in a vacuum drying oven for 24-48 hours, thereby finally obtaining the AgCrO2 nanocrystalline material with the size of 10-20 nm. The method is simple to operate, easy in control over process parameters, pollution-free, high in yield, and capable of being widely used in photoelectric function devices such as transparent conductive oxides.

The invention discloses a p-type delafossite structure CuScO 2 Crystal material and its preparation method and application, the method comprises: step 1, preparation of reaction precursor: with Cu 2+ Source reactants and Sc 3+ The source reactant is used as the raw material, deionized water is used as the reaction liquid, and the reducing agent and mineralizing agent are added and stirred until completely dissolved to prepare the reaction precursor; step 2, the reaction precursor is subjected to hydrothermal treatment at 210-240°C After reacting for 12 to 48 hours, the reaction product was centrifuged to obtain a precipitate, and the precipitate was dried to obtain the p-type delafossite structure CuScO 2 crystal material. The present invention utilizes the single reaction of hydrothermal method to prepare gram-level CuScO 2 Crystal material, no need to adjust the pH value of the precursor reactant; and the present invention explores CuScO for the first time 2 As a catalyst material in electrolytic water oxygen evolution, it shows good electrolytic water oxygen evolution activity and stability under alkaline conditions.

The invention belongs to the technical field of metal purification, and relates to a furnace pipe device and a method for preparing ultra-high purity aluminum. The furnace pipe device is characterized by sequentially comprising a furnace pipe outer frame, a thin-wall seal sleeve and a graphite crucible from outside to inside, wherein a hinge furnace lid is arranged at the upper part of the furnace pipe; a water inlet hole, a water outlet hole, an observation hole, an air exhaust hole, an air inlet hole, an exhaust vent, a temperature measuring hole and a pressure measuring hole are formed in the furnace lid; a rubber seal strip is arranged between the furnace lid and the furnace pipe outer frame; and the furnace lid is connected and fastened with the furnace pipe through buckles and bolts. The furnace pipe device disclosed by the invention is capable of melting aluminum one time; the crystal is 65Kg; the height of a crystal aluminum ingot can reach 90cm; the single production can be increased by 2.5 times in comparison with that of a conventional high-purity aluminum production technology; an argon protection environment is only kept in the furnace pipe; the furnace pipe device has no environmental requirements on heating and electromagnetic stirring devices, and is strong in continuous working ability; compared with a conventional production technology, the furnace pipe device and the method have the advantages that the power consumption is reduced by 2 / 3; and the energy consumption cost is saved by 3 / 5.