196results about How to "Easy to prepare in large quantities" patented technology

The invention relates to a method for preparing an oxidized graphene / conductive polypyrrole nano wire composite material. The method comprises the following steps of: preparing oxidized graphene by using natural graphite according to a chemical oxidization method, uniformly dispersing the oxidized graphene into deionized water by adopting an ultrasonic method to obtain a stable oxidized graphene suspension; adding hexadecyl trimethyl ammonium bromide with the mole concentration being 0.025 to 0.038 mol / L into the oxidized graphene suspension, uniformly stirring and mixing, adding pyrrole into the suspension, and uniformly mixing and stirring; polymerizing pyrrole monomers on an oxidized graphene nano sheet in situ by taking the hexadecyl trimethyl ammonium bromide as a surface active agent and ammonium persulfate as an oxidant, and performing frequent washing, suction filtration and vacuum drying on a product to finally obtain the oxidized graphene / conductive polypyrrole nano wire composite material. According to the preparation method, the process is simple, and the cost is low; and the product is high in specific capacity and high stability. The method can be applied to fields such as lithium ion batteries, sensors, electronic devices and fuel batteries.

The invention discloses a production process of falling-apart-resistant silk stockings with human-body aesthetics, which sequentially comprises the five steps of yarn wrapping and winding, weaving, dyeing and shaping, wherein in the weaving step, according to an ergonomic principle, the silk stockings are woven in segments, and yarn is transmitted in each segment by adopting an individual automatic yarn feeder. According to the production process, the silk stockings are processed in segments by adopting a design conforming to ergonomics, so that an original single weaving mode is rid, the silk stockings further conform to the ergonomic characteristics of people, and therefore, the silk stockings further have comfort and aesthetic feeling when being worn by the people.

The invention belongs to the field of fluorescence detection materials, and particularly relates to a preparation method of a rare earth terbium-based metal organic framework material and study on the performance of selectively recognizing heavy chromate ions in water. By selecting rare earth terbium emitting green light as metal central ions and selecting p-terphenyl-3,3'',5,5''-tetramethyl acid as organic sensitized ligands, a rare earth porous metal organic framework compound is synthesized under the hydrothermal condition. The compound causes the most obvious fluorescence quenching phenomenon to Cr2O72- anions in different anion solutions, and thus the compound can serve as a novel fluorescence probe for detecting Cr2O72- anions.

The invention provides a dissimilar metal organic framework material of 2,2'-dipyridyl-3,3'-dicarboxylic acid and a preparation method thereof, belonging to the technical field of crystalline materials. The chemical molecular formula is [Dy(cpa)2(H2O)2].[Me2NH2], wherein Me2NH2 is dimethylamine cation, and cpa represents 5-(4-carboxylphenyl)pyridyl formic acid. Under sealed conditions, an organic ligand pyridine carboxylic acid and dysprosium nitrate are subjected to solvothermal reaction in an N,N-dimethylformamide-water mixed solution by regulating the pH value with nitric acid, thereby obtaining the crystal of the metal organic framework material. The silver-supported metal organic framework material has favorable catalytic properties in p-nitrophenol reduction.

The invention discloses a method for manufacturing an application substrate through photo-thermal effect, which comprises the following steps: performing light excitation on nanoparticles, and then converting light energy supplied by irradiation light rays into heat energy to further form a structure through the generated heat energy by which the application substrate with a specific surface structure is generated.

The invention discloses an oxygen-doped molybdenum disulfide thermoelectric material preparation method. The method comprises the following steps: a certain mass of MoS2 powder is firstly weighed and tiled on a corundum boat and is then put to a quartz tube of a horizontal tube furnace, a certain temperature rises, constant temperature is kept for a certain time in an air atmosphere, oxygen-doped molybdenum disulfide powder is obtained, and finally, a spark plasma sintering (SPS) technology is used for sintering a compact bulk thermoelectric material. The polycrystalline oxygen-doped molybdenum disulfide thermoelectric material obtained by the preparation method of the invention is obvious in preferred orientation, conductance and Seebeck coefficients are high, and the thermoelectric performance is good; besides, the oxygen-doped molybdenum disulfide can be applied to fields such as electrochemistry, photoelectrocatalysis and electronic devices.

A preparation method for a CZTS nano-particle material belongs to the technical field of materials. The method comprises the following steps: first, respectively preparing a reaction system A (dissolving copper salt, antimonic salt and elemental sulfur in ethylene diamine in an ultrasonic manner) and a reaction system B (a water solution of zinc salt and tin salt); then, mixing the system A and the system B in an ultrasonic manner, sealing and heating to 200 DEG C; keeping the the temperature for 7-24 hours for reaction; finally, taking black powder at the lower layer, and obtaining a target product through centrifugation and washing. According to the invention, a moderate amount of an antimony compound is added to allow copper ions and Sb ions to react with the sulfur so as to generate a mobile-phase copper-antimony-sulfur compound and to promote the growth of Cu2ZnSnS4; meanwhile, the crystal grain dimensions of the Cu2ZnSnS4 nano particles are more uniform. The prepared CZTS nano-particle is good in crystallinity, has no other impurity phase, and is more uniform in dimension distribution; the reaction time is greatly shortened under the action of the mobile phase; only sealing and heating equipment is required during the preparation process, so that the preparation steps are simple, and mass production is achieved.

The invention provides a preparation method and applications of a magnesium oxide-supported ruthenium catalyst for hydrogen preparation through ammonia decomposition. The catalyst adopts magnesium oxide as a carrier, adopts a metal ruthenium as an active component, wherein the ruthenium particles are uniformly dispersed on the surface of the magnesium oxide, and the ruthenium content accounts for0.5-10% of the total weight of the catalyst. According to the present invention, the magnesium oxide-supported ruthenium catalyst precursor is prepared by using the precipitation deposition method, the obtained product is washed and dried, and the dried product is reduced in the reducing atmosphere so as to prepare the magnesium oxide-supported ruthenium catalyst with highly-dispersed ruthenium; the preparation method is simple, and uses the low-cost magnesium oxide as the carrier; and the prepared magnesium oxide-supported ruthenium catalyst has advantages of good metal dispersibility, high catalytic activity, good stability and the like, and can be used for catalyzing the hydrogen preparation process using ammonia decomposition.

The invention relates to a fluorescent probe for detecting sarin and an analogue thereof. The fluorescent probe comprises a compound which is loaded on a substrate and has a structure shown as a formula I, wherein the formula I is shown in the description. The invention further provides a synthesis method and application of the fluorescent probe for detecting the sarin and the analogue thereof. According to the application provided by the invention, when a compound with the structure shown as the formula I in the fluorescent probe is in contact with the sarin or the DCP (Diethyl Chlorophosphate) in air, the fluorescence intensity and the emission wavelength are both changed, and gas-phase detection of the sarin and the DCP can be realized. The compound with the structure shown as the formula I can have one or more terpyridines; when the sarin or the DCP reacts with one certain pyridine in one certain terpyridine in a molecule, charge transferring from the fluorescent probe to the sarin or the DCP occurs; meanwhile, energy transferring from a polymer core to a peripheral radical occurs, and fluorescent quenching of the whole molecule is caused, so that the fluorescent probe has excellent sensing performance.

The invention discloses an asymmetric catalytic hydrogenation method of imine. Chiral amine is prepared through asymmetric hydrogenation of the imine through using a complex as a catalyst in the presence of an iodate or iodine under the co-action of an acid, wherein the complex is prepared through an in-situ reaction of {(R)-1-[(S)-2-di-phenyl-phosphino-ferrocene]}-propyl-di-(3,5-dimethyl-phenyl)phosphine and an iridium complex; and the proper molar ratio (s / c) of the raw material imine to the catalyst is 100-500000. The method has the advantages of easily available ligand, convenience of large-scale preparation, simple operation, and realization of continuous operation, is suitable for the large-scale preparation of the chiral amine, enables the e.e value of the chiral amine to be above 70%, completely satisfies requirements of a pesticide intermediate, is especially suitable for preparing chiral intermediates of a pesticide S-metolachlor, and has a very good industrial practicality.

The invention discloses a micro-nano scale wave structure in a macroscopic composite material and a preparation method thereof, and belongs to the technical field of functional composite materials. Atwo-dimensional nano-material dispersion solution is self-assembled to form a macroscopic structure including a thin film, gel and the like; a carbon-nitrogen compound is generated by utilizing thermal chemical reaction and the state of a two-dimensional composite material is regulated and controlled to form the micro-nano scale wave structure. The micro-nano scale wave structure disclosed by theinvention has the characteristics that a preparation technology is simple, the size and shape of the composite material are easy to regulate and control, the mechanical elasticity, an electronic structure or a surface state of the material is adjustable and the like; a foundation is laid for researches and application of an assembled macroscopic material to the fields including flexible conductors, micromechanical electronics and flexible energy storage devices, catalytic carriers and the like.

The invention provides a nitrogen-doped and carbon-coated magnetic nanoparticle composite microspheres and a preparation method thereof, and belongs to the technical field of materials with an electromagnetic function. According to the method, a glycerin metal complex and a nitrogenous organic compound are taken as main raw materials. A monodispersed glycerin metal complex precursor is prepared according to a self-template method at first; then the surface of the precursor is coated to form a shell by virtue of in-situ polymerization for nitrogenous organic monomers, and a carbon source and anitrogen source are introduced; and finally, calcining is carried out under an inert gas, and a core is subjected to thermal decomposition to form magnetic nanoparticles while the shell is carbonizedto form nitrogen-doped carbon. The nitrogen-doped and carbon-coated magnetic nanoparticle composite microspheres are green and environment-friendly, and efficient and time-saving in preparation process, and suitable for being prepared in a large scale; the electromagnetic parameters of the composite microspheres and the sizes of the magnetic nanoparticles can be regulated and controlled by changing the mass ratio of metal salt to the nitrogenous organic monomers, and an annealing temperature, so that impedance matching and attenuation characteristic are achieved; and the prepared composite microspheres are high in absorption intensity for electromagnetic wave, wide in effective absorption frequency band, easy to prepare in a large scale, and capable of meeting many use needs.

The invention discloses a method for preparing pathogenicity aeromonas hydrophila bacteria inactivating vaccine, which comprises the following steps: firstly, inoculating the pathogenicity aeromonas hydrophila bacteria separated from the brown paralichthys olivaceus with abdominal dropsy through PCR detecting to the common LB culture medium to be cultured so as to reach a certain density; secondly, inactivating the bacteria by using formaldehyde solution; thirdly, collecting the thalli by using centrifugal culture and then diluting the thalli by using physiological saline so as to get the pathogenicity aeromonas hydrophila bacteria inactivating vaccine. The preparing method is rapid, simple and convenient in operation, and easy in batch preparing; the gotten vaccine is a pure biological agent which does not has any toxic and side effect and does not cause pollution to the meat quality of the paralichthys olivaceus and the surrounding water. The immunity protecting rate reaches 80 percent by using the vaccine prepared by the method to inoculate brown paralichthys olivaceus so as to radically curb the spreading of the pathogeny. The invention provides new approach for preventing and curing the epidemic abdominal dropsy of brown paralichthys olivaceus.

The invention provides a preparation method of a foamed nickel-loaded amorphous phosphorus doped nickel molybdate bifunctional electrocatalytic electrode and an application thereof, and belongs to thetechnical field of hydrogen energy and fuel cells. The preparation method comprises the following steps: soaking foamed nickel into an HCl solution, removing metal oxide on the surface, soaking the pickled foamed nickel into a phosphomolybdic acid aqueous solution, carrying out a spontaneous oxidation-reduction reaction, taking out, washing with deionized water, and drying for later use, therebyobtaining the foamed nickel-loaded amorphous phosphorus-doped nickel molybdate nanostructure. The foamed nickel is etched by using the phosphomolybdic acid aqueous solution, and can be directly used after drying, the material can be used as a bifunctional electrode material for urea electrooxidation and water and electricity reduction; a urea electrooxidation reaction with low oxidation potentialis used for replacing an electrocatalytic oxygen evolution reaction, a two-electrode urea auxiliary electrolysis hydrogen production system based on a bifunctional electrocatalyst is constructed in analkaline solution, low-cost, low-energy-consumption and stable electrochemical hydrogen production is achieved, and the method is suitable for large-scale industrial electrochemical hydrogen production application.

Encapsulation structure for organic electroluminescence device (OELD) includes following parts and structures: base plate and OELD on the base plate; encapsulation cover plate above the base plate in use for covering the OELD; multiple partition walls are setup at glue spreading region; A sealing glue regions are formed between two adjacent partition walls naturally. Agglutination glue is accommodated inside sealing glue regions. Thus, encapsulation cover plate through agglutination glue is agglutinated on the base plate. The invention raises superior rate and manufacturing efficiency and quality of product, as well as reduces glue flooding so as to be in favor of mass manufacture of the product.

The production process of non-inflation tyre includes: preparing one inner tyre frame; setting the inner frame inside mold and rotating injection or jetting formation to produce outer rubber layer with at least one perfusion hole; perfusing inner tyre material via the perfusion hole; foaming the inner tyre material for the close combination among the inner tyre frame, the inner tyre material and the outer rubber layer. The non-inflation tyre includes one inner tyre frame; one outer rubber layer with at least one perfusion hole and formed through rotating injection or jetting formation; and one inner tyre layer of foamed material combined closely.

A rapid separation method of purified R-phycoerythrin and R-phycocyanin, which pertains to separation and purification of red algae technical field. The invention uses red algae as raw material, extracts R-phycoerythrin and R-phycocyanin by freeze dissolving and intensified swelling with low ions, carries out primary purification after precipitation with ammonia sulfate, then absorb and enrich R-phycoerythrin and R-phycocyanin by anion exchange chromatography, and further elutes highly purified R-phycoerythrin and R-phycocyanin from anion exchange chromatography step by step. The method eliminates conventional complex separation and purification step which uses multiple chromatography combining molecular sieve chromatography with hydroxyapatite chromatography, solves the problem of extensive and rapid preparation. The method is easy in operation, time and energy saving, with little requirements to apparatus, and high in yield.

The invention discloses a preparation method for graphene. According to the method, the graphene is obtained by reduction and oxidization by adopting a food antioxidant. The preparation method is green, safe, mild and simple in the preparation process; and the obtained grapheme is high in quality and benefits mass preparation. The graphene prepared by the method has potential application value in aspects of separation, enriching, a composite material based on the grapheme and the like.

The invention discloses a preparation method of a field-induced nonlinear conducting composite material, a prepared composite material and an application thereof and relates to the field of nonlinearconducting composite materials. The preparation method comprises the following steps: taking KH560, ethanol and deionized water to obtain a solution A; adding GO into the solution A to react for 3-5 hours at 75-85 DEG C to obtain a suspension B; adding alkali into the suspension B till the pH is 10, adding hydrazine hydrate to be dispersed, heating the mixture to 85-95 DEG C to react for 5-7 hoursto obtain a suspension C, washing, suction filtering and drying the filter cake to obtain RKGO powder; mixing the RKGO powder, epoxy resin E-51 and acetone to obtain a suspension D, carrying out a reaction at 75-85 DEG C till the acetone is volatilized fully and cooled to 45-50 DEG C, adding a 2-ethyl-4-methylimidazole liquid to react, and extracting bubbles to be cured to obtain a composite material, wherein the RKGO filling mass fraction in the composite material is 0.75-1.50%. The preparation method is simple, low in cost, short in reaction time and easy to prepare massively. The preparedcomposite material is light in weight, good in uniformity and high in conducting nonlinear coefficient, and can be used in the fields of overvoltage protection, lightning stroke and surge protection,static prevention and self-adaptive electromagnetic pulse protection.

The invention refers to a manufacturing method of a porous carbon material, comprising the steps of: dissolving a surface active agent and a carbon source material in a solvent to form an organic template precursor solution; manufacturing a silicate aqueous solution; pouring the organic template precursor solution in the silicate aqueous solution to separate out an intermediate product which includes a surface active agent, a carbon source material and a silicon oxide template; heating the intermediate product to carbonize the intermediate product; and removing the silicon oxide template to form a porous carbon material. The invention also refers to a manufacturing method of the porous carbon material.

The invention discloses a preparation method for a covalent triazine framework compound and MoS2 compound hydrogen evolution catalyst and application of the hydrogen evolution catalyst. According to the covalent triazine framework compound and MoS2 compound hydrogen evolution catalyst, anhydrous zinc chloride and terephthalonitrile are taken as raw materials, a covalent triazine framework compoundis obtained, then covalent triazine framework compound powder, ammonium carbonate and thiourea react, and finally, the covalent triazine framework compound and auxiliary MoS2 compound hydrogen evolution catalyst is obtained. The preparation method is simple in operation, convenient, low in cost and capable of being widely applied to an industrial electro-catalysis hydrogen evolution reaction andprovides convenience for large-scale preparation.

The invention discloses a supermolecule heterojunction organic photocatalyst and a preparation method and an application method thereof. The photocatalyst is a BiOCl / PDI photocatalyst. Sheet shape BiOCl is prepared by a hydrothermal method; and perylene diimide (PDI) is synthesized by an organic synthesis method. BiOCl and PDI are taken as the raw materials to synthesize the BiOCl / PDI photocatalyst, or BiOCl and acidified PDI are taken as the raw materials to synthesize the BiOCl / PDI photocatalyst. The invention also provides an application method of using the photocatalyst to degrade organicmicro-pollutant wastewater. The preparation technology of the prepared BiOCl / PDI supermolecule photocatalyst is simple; the output is large; organic micro-pollutants in water can be efficiently degraded under a photocatalytic condition and a neutral condition without adding any oxidant; and the photocatalytic effect on cation type pollutants is better.

The invention discloses a novel carbon fiber with a spiral structure and a preparation method of the novel carbon fiber. The carbon fiber comprises a straight carbon fiber and a spiral carbon fiber, wherein the spiral carbon fiber is grown on the surface of the straight carbon fiber. The preparation method of the novel carbon fiber comprises the following steps of: (1) preparing an aqueous solution, wherein the total molar concentration of metal ions of the aqueous solution is 0.05-0.25 mol / L; (2) impregnating the carbon fiber in the aqueous solution prepared in the step (1); (3) calcinating the carbon fiber treated in the step (2) for 1-2 hours in a nitrogen or inert atmosphere at the temperature of 350-450 DEG C, and then introducing in hydrogen into the nitrogen or inert atmosphere to carry out reduction on the carbon fiber for 0.5-2 hours at the temperature of 450-550 DEG C; and (4) heating the carbon fiber treated in the step (3) to 620-750 DEG C, and feeding acetylene gas into the nitrogen or inert atmosphere to carry out reaction for 45-120 min at the pressure of 2-110 KPa, thereby obtaining a combination with a spiral carbon fiber grown on the surface of a straight carbon fiber. The carbon fiber with the spiral structure disclosed by the invention not only can improve the mechanical properties of a composite material, but also can endow the composite material with special functions. The method disclosed by the invention is advantageous to the large-scale preparation of spiral carbon fibers; and the method is simple in preparation process, easy to control, and low in cost.

The invention belongs to the field of medicines and daily chemicals and particularly relates to a novel polypeptide PAP1 and an application thereof. The novel polypeptide PAP1 has the structure shown in the formula I. The novel polypeptide can promote proliferation of embryo fibroblasts of mice and migration of immortalized human epidermal cells at relatively low concentration, has low toxic and side effects, has good application prospects and can be used for preparation of medicines for treating wounds, scalds and ulcers or cosmetics and daily chemicals for improving skin beauty.

The invention provides a phosphaphenanthrene compound and a preparation method and application thereof. The compound is a compound shown in the formula I or a stereisomer, a geometrical isomer, a tautomer, a hydrate, a solvate, ester and pharmacologically acceptable salt of the compound shown in the formula I, wherein R, X and Y are as defined as in the instruction book. The compound has the goodsynergistic flame retardation effect, can be served as a fire retardant, is suitable for flame retardation in high polymer materials, and is particularly suitable for preparing the high polymer materials such as epoxy resin with the flame retardation property. The formula I is shown in the description.

The invention provides a new method for synthesizing paricalcitol, comprising the following steps of: a. reacting a compound II with alkali, then adding a compound I, carrying out a Julia reaction to generate a compound III; b. reacting the compound III with a fluorine-containing reagent to remove the protecting group so as to obtain a compound IV; c. removing the protecting group of the compound IV under acidic condition to obtain the product of paricalcitol. The method for synthesizing paricalcitol disclosed the invention has the advantages of low cost and high yield, and is simple in operation and easy in industrial production.

The invention relates to the field of medicines and daily chemicals, in particular to a periplaneta americana new polypeptide for promoting tissue repair and application of the periplaneta americana new polypeptide, the structure of the periplaneta americana new polypeptide is shown as a formula I, and the periplaneta americana new polypeptide is named as a tissue repair factor PA1. The new polypeptide can promote proliferation of mouse embryo fibroblasts and migration of human immortalized epidermal cells even at a low concentration, has low toxic and side effects and has a good application prospect, so that the polypeptide can be used for preparing medicines for treating wounds, scalds and ulcers or cosmetics and daily chemical products for improving skin beauty.

The invention discloses a preparation method of cellular three-dimensional graphene. The preparation method comprises the following steps: performing ultrasonic dispersion and mixing of graphene oxide and phthalocyanine compound to obtain a graphene oxide / phthalocyanine composite precursor; and sintering the graphene oxide / phthalocyanine composite precursor by a temperature programmed sintering method through a solid-phase cracking process under inert gas protection for cracking and self-assembly of the raw materials to finally obtain a cellular three-dimensional graphene material. The preparation method disclosed by the invention has the advantages of simple process, high product purity and industrialization promotion; and the prepared composite material can be applied to the fields such as new energy, radiating materials and catalysts.

The invention discloses an artificial simulation hydrogenase of an aromatic ether dendritic polymer. The artificial simulation hydrogenase has the following two molecular structures of a molecular structure (I) and a molecular structure (II), wherein X is the aromatic ether dendritic polymer and has a structural formula shown in the description, R1, R2, R3 and R4 are carbonyl, isocyano, triphenylphosphino, trimethylphosphino, triethylphosphino, tributylphosphino or tripyzzolephosphino. Compared with natural hydrogenase, the artificial simulation hydrogenase of the aromatic ether dendritic polymer disclosed by the invention has good stability and is convenient to store; the artificial simulation hydrogenase is firstly used as a proton reduction catalyst for hydrogen production by water decomposed under catalysis of visible light; during hydrogen production, the catalyst has a stable property and a rather high hydrogen production catalytic activity; so far, the artificial simulation hydrogenase is an artificially synthesized artificial simulation hydrogenase with a highest catalytic activity.

The invention relates to linoleic acid modified glucan and a preparation method of a polymeric liposome. Glucan reacts with linoleic acid to form an amphiphilic high-molecular linoleic acid modified glucan. Then the linoleic acid modified glucan is dissolved in dichloromethane, and prepared into high-molecular liposome according to a reverse evaporation method.