14results about How to "Short synthesis time" patented technology

The invention relates to the technical field of electrolyte, in particular to a thioether cross-linked solid polymer electrolyte membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: taking N, N-dimethylformamide, respectively adding 3, 6-dioxa-1, 8-octane dithiol and triglycidyl isocyanurate, and uniformly stirring to obtain a mixed solution; adding bis (trifluoromethylsulfonyl) imide lithium into the mixed solution, putting magnetons on a magnetic stirrer, and completely dissolving the magnetons to obtain a precursor solution; and pouring a proper amount of the precursor solution into a polytetrafluoroethylene mold, spreading, and carrying out cross-linking polymerization in a blast oven to form the film. The three-dimensional thioether cross-linked network structure has a large number of weakly coordinated thioether groups, dissociation of lithium salt can be promoted, a large number of free Li < + > is generated, the number of Li < + > is increased, meanwhile, the crystallinity of a polymer is remarkably reduced, the ionic conductivity is improved, the mechanical stability of a film can be improved, and the service life of a battery is effectively prolonged.

The present application mainly relates to a kind of preparation of sulfur-rich amino acid protein CMd-copper nanoclusters and its detection mercury ion method, comprising: a) by prokaryotic expression obtains CMd protein, and the protein concentration of 5 mg / mL-25 mg / mL CMd protein solution is obtained by purification.b) CMd is reacted with reducing agent TCEP after opening protein disulfide bond.c) the protein solution after reduction is reacted with anhydrous copper sulfate, and preparation high fluorescence CMd-copper nanocluster.d) CMd-copper nanocluster is applied to detect heavy metal mercury ion.The application method can be synthesized under mild aqueous conditions by "one-step method" structure controllable, stable CMd-copper nanocluster, widens the raw material of copper nanocluster synthesized with protein as template, avoids the use of organic solvent and strong reducing agent, and reduces the cost and environmental burden brought by noble metal raw material, and also has higher selectivity to mercury ion.

The invention provides a preparation method of micro-powder-free cobalt hydroxide, belongs to the technical field of lithium ion battery material preparation, and solves the problems that the content of micro powder is high and the synthesis process is difficult to control when the cobalt hydroxide is prepared in the prior art. The method comprises the following operation steps: preparing a solution, carrying out a synthetic reaction, aging, washing, drying and the like, and synthesizing a crimson beta-type cobalt hydroxide product with a product index D0 greater than or equal to 3 microns and regular morphology by controlling the temperature of a synthetic raw material solution at-5 to + 5 DEG C and controlling proper synthesis conditions. The cobalt hydroxide prepared by the method is regular in microstructure, does not contain fine micro-powder particles, and can be used for preparing cobaltosic oxide required by high-voltage lithium cobalt oxide.

Embodiments of the present disclosure disclose a digital tourism-based synthetic video derivation method, an electronic device and a readable medium. A specific implementation of the method includes: in response to determining that the video detection result represents no abnormality, controlling a video processor to perform cutout processing on user action video stream data, and performing fusion processing on the obtained user cutout video stream data and a preselected virtual background to obtain synthetic video stream data; in response to detecting that the theme rendering video stream data meets a preset target condition, controlling a video derivation device to generate a short chain of the theme rendering video stream data, and performing video derivation of the generated video short chain through a preset application channel to obtain a digital tourism synthetic video. The implementation shortens the time of video synthesis, and improves the processing capability and video quality of the derived synthetic video.

The invention discloses a carbon dot corrosion inhibitor with excellent corrosion inhibition and tracing performance, a preparation method and application, and relates to the technical field of corrosion inhibition of metal materials. The technical problems that in the prior art, a carbon dot corrosion inhibitor is prone to aggregation and instability in a high-temperature and strong-acid environment, and application is single are solved. The method comprises the following steps: firstly, taking citric acid and propargyl-PEG2-amine as raw materials, and dissolving the raw materials in deionized water to obtain a mixed solution; the mixed solution is placed in a high-pressure reaction kettle to be subjected to a hydrothermal reaction, and citric acid carbon dots modified by propargyl-PEG2-amine are prepared; sequentially carrying out centrifugation, dialysis and freeze drying treatment on the citric acid carbon dots modified by the propargyl-PEG2-amine, so as to obtain the citric acid carbon dots modified by the propargyl-PEG2-amine. The prepared carbon dot corrosion inhibitor can be used as a corrosion inhibition material in a high-temperature-resistant strong-acid environment, and can also be used for in-situ monitoring of dichromate ions in industrial wastewater and in-situ monitoring of iron ions and ferrous ions in underground water, surface water and drinking water so as to judge whether the content of the iron ions and the ferrous ions exceeds the standard or not.

This invention discloses a magnetic nano-adsorbent material, which is a magnetic composite nanosphere modified with silane on its surface. The magnetic nano-adsorbent material has a core-shell structure, and the silane modification includes hydrophilic and lipophilic groups. The hydrophilic and lipophilic groups modified with silane exhibit excellent synergistic effects in improving the adsorption rate of drugs, especially tetrahydrocannabinol (THC-COOH), NKET, and 6-AM, demonstrating a significant improvement in adsorption efficiency. This allows for efficient and selective enrichment and purification of multiple illicit drugs in water. Furthermore, the magnetic nano-adsorbent material of this invention possesses strong magnetism, allowing for rapid separation of the adsorbent material using a magnet, achieving rapid solid-liquid separation, and enabling material recycling and regeneration. This invention employs a sol-gel method to prepare the magnetic nano-adsorbent material, which has simple synthesis conditions, a short one-pot synthesis time, and results in magnetic nano-adsorbent materials with good monodispersity and uniform particle size.

The invention discloses a preparation method and low-temperature application of a Te-doped tungsten niobium oxide / molybdenum niobium oxide heterojunction, and belongs to the technical field of secondary batteries. The preparation method specifically comprises the following steps: carrying out high-energy ball milling and alloying on WO3, Nb2O5 and Te2O5 to obtain amorphous Te-doped tungsten niobium oxide; the preparation method comprises the following steps: carrying out high-energy ball milling and alloying on MoO3, Nb2O5 and Te2O5 to obtain amorphous Te doped molybdenum niobium oxide; uniformly mixing and compacting the amorphous Te doped tungsten niobium oxide and the amorphous Te doped molybdenum niobium oxide, and performing discharge plasma sintering in an inert atmosphere to obtain the ceramic crystal Te doped tungsten niobium oxide / molybdenum niobium oxide heterojunction material. The Te-doped tungsten niobium oxide / molybdenum niobium oxide two-phase heterojunction material designed by the invention is relatively short in synthesis time, the synthesis period is shortened, the size of crystal grains is convenient to regulate and control, the crystallinity of the material is very good, the diffusion rate of lithium ions is greatly promoted by a heterojunction interface, the electron conductivity is improved by cooperating with Te doping, and the performance of the Te-doped tungsten niobium oxide / molybdenum niobium oxide two-phase heterojunction material is improved. The material can be used as a lithium ion negative electrode material with fast charging characteristic and good low-temperature performance.

The invention provides ZSM-48 molecular sieve raw powder, a rapid synthesis method thereof and an n-dodecane hydroisomerization reaction catalyst. The rapid synthesis method comprises the following steps: uniformly mixing a first silicon source, a first inorganic alkali source, a first template agent and water to obtain first gel; performing dynamic crystallization on the first gel, and obtaining nano crystal buds after the crystallization is completed; uniformly mixing a second silicon source, an aluminum source, a second inorganic alkali source, a second template agent and water to obtain second gel; and adding nano crystal buds into the second gel to form third gel, carrying out static crystallization on the third gel, and filtering, washing and drying the obtained product to obtain ZSM-48 molecular sieve raw powder. According to the rapid synthesis method provided by the invention, the nanocrystalline buds are added into the ZSM-48 synthesis gel mother liquor, and the synthesis time of the ZSM-48 molecular sieve can be greatly shortened by utilizing the structure guidance quality and the induction effect of the nanocrystalline buds; the prepared molecular sieve is high in crystallinity, and the dosage of the organic template agent is low.

The application relates to the field of synthesis of selenide, and aims at the technical problems of complicated operation steps and slow reaction process in the implementation of the existing method, and provides an alkali metal selenide compound based on a direct preheating method, a preparation method and application thereof, which comprises the following steps: in a glove box in an inert gas atmosphere, heating alkali metal elements until the alkali metal elements are in a liquid state; mixing selenium elements with the liquid alkali metal elements and reacting for 1-3 seconds to form a molten state, after the molten substance is solidified, standing and cooling, and grinding to obtain an alkali metal selenide compound; the molar mass ratio of the selenium elements to the alkali metal elements is 1:0.5-2. x Se y The precursor compound can simplify a precursor synthesis process, reduce a synthesis condition threshold, reduce synthesis time cost and money cost, and improve precursor product synthesis efficiency.

The present application relates to the technical field of water-based acrylic modified alkyd resin, especially to the field of IPC C08F283, further, to a triphenyl phosphite modified water-based alkyd resin and a preparation method thereof, wherein the raw materials include, by mass fraction, 20-30 parts of fatty acid, 10-20 parts of polyhydric alcohol, 12-20 parts of dibasic acid, 2-6 parts of benzoic acid, 0.02-0.08 parts of catalyst, 0.05-0.15 parts of triphenyl phosphite, 1.5-4.0 parts of dimethylbenzene, 18-25 parts of cosolvent, 2-5 parts of acrylic monomer, 0-15 parts of acrylic ester monomer, 0.3-1.0 parts of initiator and 3-6 parts of neutralizing agent.The present application uses triphenyl phosphite as an antioxidant, reduces the color number of the resin, improves the water resistance of the resin to a certain extent, improves the catalytic efficiency of the catalyst and shortens the synthesis time.

The present application belongs to the field of nanomaterial preparation and food detection, and provides a kind of conjugated rare earth doped peptide nanosphere ratio fluorescent sensing material and its preparation method and application.Soluble europium salt, dipeptide and photosensitizer are mixed in solvent, and self-assembled into rare earth doped peptide nanosphere under mechanical force, then mixed with fluorescent molecules to react to obtain the fluorescent sensing material.The fluorescent sensing material has double signal output, anti-interference and high sensitivity, and has the advantage of low cost compared with noble metal nanoprobes, and is suitable for constructing rapid detection system to meet the needs of food safety, environmental monitoring and clinical diagnosis.

The invention provides a synthesis system and a synthesis method of a molecular sieve membrane, the synthesis system comprises a reaction liquid storage tank, a long barrel type reaction kettle and a reaction liquid recovery tank, an outlet of the reaction liquid storage tank is connected with a feed port of the long barrel type reaction kettle, and a discharge port of the long barrel type reaction kettle is connected with the reaction liquid recovery tank; wherein the reaction liquid storage tank and the long barrel type reaction kettle are respectively provided with a temperature control device; a molecular sieve membrane support body is arranged in the long barrel type reaction kettle along the axial direction, and the ratio of the size of the molecular sieve membrane support body along the radial direction of the reaction kettle to the diameter of the reaction kettle is 1: (1.01-5). The preparation time of the molecular sieve membrane with the specific thickness is shortened, meanwhile, the defect that the molecular sieve membrane is uneven in thickness is overcome, and the molecular sieve membrane with the uniform thickness and the uniform compactness is prepared.

The invention discloses a rapid synthesis method of a ZSM-5 molecular sieve with a low silica-alumina ratio, and the method comprises the following steps: (1) uniformly mixing a silicon source, an aluminum source, sodium hydroxide, an organic structure directing agent and water to obtain a silica-alumina mixed sol solution; (2) adding a nano ZSM-5 seed crystal, and stirring until the materials are uniformly mixed; (3) transferring the mixture into a tubular reactor, crystallizing, and carrying out rapid reaction under the assistance of the nano ZSM-5 seed crystal by utilizing the advantages of rapid heat transfer and mass transfer of the tubular reactor; and (4) washing, drying and roasting the product obtained by crystallization to obtain the ZSM-5 with low silica-alumina ratio. According to the synthesis method disclosed by the invention, the ZSM-5 molecular sieve with the low silica-alumina ratio can be rapidly synthesized in an extremely short time, and the problems of relatively long synthesis time and the like of the ZSM-5 molecular sieve with the low silica-alumina ratio in the prior art can be solved.

This invention provides a method for synthesizing Silicalite-1 molecular sieves using n-butylamine as a template agent, relating to the field of molecular sieve technology. The invention involves mixing n-butylamine, water, a silicon source, Silicalite-1 molecular sieve seed crystals, and sodium hydroxide to obtain an initial gel mixture. The silicon source includes one or more of silica, silica sol, silica gel powder, and tetraethyl orthosilicate. The initial gel mixture is then subjected to hydrothermal crystallization to obtain Silicalite-1 molecular sieves. This invention uses n-butylamine as a template agent and employs a seed-assisted synthesis method for Silicalite-1 molecular sieves, which significantly reduces the amount of n-butylamine used and the synthesis time. Compared with existing technologies, the synthesis method provided by this invention features inexpensive raw materials, low organic template agent usage, high product crystallinity, short synthesis time, and high yield, overcoming the disadvantages of existing synthesis methods that require expensive and large amounts of template agents.