26results about How to "Synthesis fast" patented technology

The invention discloses polyrotaxane with controllable cyclodextrin coverage rate as well as a preparation method and application of the polyrotaxane, and belongs to the technical field of polyrotaxane materials. The preparation method comprises the following steps: dissolving alpha-cyclodextrin, 3-hydroxyadamantane-1-carboxylic acid and polyethylene glycol diamine in deionized water, refrigerating and assembling to form quasi-polyrotaxane, and blocking to obtain polyrotaxane; wherein the polyethylene glycol diamine is prepared from polyethylene glycol and N, N '-carbonyldiimidazole, and the cyclodextrin coverage rate of the polyrotaxane is directionally regulated and controlled by regulating and controlling the mass ratio of the alpha-cyclodextrin to the 3-hydroxyadamantane-1-carboxylic acid, the adding sequence of the 3-hydroxyadamantane-1-carboxylic acid and the refrigerating and assembling time. Based on the mechanism that 3-hydroxyadamantane-1-carboxylic acid and polyethylene glycol compete in a cyclodextrin cavity, polyrotaxane with a cyclodextrin coverage rate of 0.5-2.5% is synthesized, and a polymer based on the polyrotaxane has better ductility and mechanical properties.

According to the palladium adsorbent with the fluorescence indication function and the preparation method and application of the palladium adsorbent, an aldehyde compound is dispersed in a mixed solution of acid and water, a turbid liquid of a hydrazide compound and water is dropwise added into the obtained aldehyde compound turbid liquid, stirring reaction is conducted at the room temperature, and the palladium adsorbent with the fluorescence indication function is obtained. Different from a conventional two-step method in which an organic polymer needs to be synthesized firstly, the preparation method disclosed by the invention adopts a strategy of pre-activating an aldehyde monomer by using an acid catalyst, so that the nucleophilicity of an amino monomer is prevented from being reduced, the generation of a semi-amine aldehyde intermediate is accelerated, and the reaction efficiency is improved, so that Schiff base condensation can be rapidly synthesized in a water phase at room temperature, and precious metal catalysis is not needed; and batch production can be realized more easily. And the material has an optical indication performance while having an adsorption capacity on palladium, and can be recycled and reused after elution.

The invention belongs to the technical field of metal-organic framework functional materials, and particularly relates to a nickel-based metal-organic framework material, a plasmon nickel-based metal-organic framework composite material and a synthesis method and application of the nickel-based metal-organic framework material and the plasmon nickel-based metal-organic framework composite material. According to the invention, chloroauric acid is directly reduced into gold nanoparticles by using the reducibility of the nickel-based metal organic framework material, and the gold nanoparticles are loaded on the nickel-based metal organic framework material, so that uniform dispersion and firm loading of the gold nanoparticles on the nickel-based metal organic framework material are realized. The method has the advantages of simple synthesis method, convenience in operation and no need of additional reducing agent, is easy for large-scale preparation, and has better market application value and development prospect. The prepared plasmon nickel-based metal organic framework composite material is used as a photoelectrocatalytic reaction catalyst to be applied to photoelectrocatalytic reduction of nitrate to prepare ammonia, and the catalytic performance is excellent.

The application discloses a kind of wide temperature range stable copper cluster scintillator and its preparation method and application, the scintillator chemical general formula is Cu4X4 (dppyme) 2, by introducing methyl in pyridine ring 6 position structure space constraint, induce to form long-range ordered crystal packing phase, significantly enhance the lattice rigidity.This material has the microcosmic energy level structure of thermal activation delayed fluorescence (TADF) and self-trapped excitor (STE) light emitting mechanism synergism, in-190 ℃ to 150 ℃ extremely wide temperature range, excellent radiation luminescence stability is shown.The application is prepared by room temperature solution method, and process is simple.The flexible film constructed using the material improves the mechanical stability by polymer embedding process, and the spatial resolution reaches 27.8 lp / mm, which is suitable for X-ray detection and imaging in extreme environments such as deep space exploration, polar scientific research and high-temperature industrial detection.

The invention discloses a dual-channel multi-pulse signal synthesis method, which belongs to the technical field of multi-pulse signal synthesis and comprises the following steps: acquiring a plurality of pulse signals and parameters thereof; the pulse signals are stored in a random type signal pool and a periodic type signal pool according to time domain characteristics in the parameters; synthesizing the pulse signals in the periodic signal pool into a periodic pulse sequence; synthesizing the pulse signals in the random signal pool into a random pulse sequence; synthesizing the periodic pulse sequence and the random pulse sequence into a dual-channel multi-pulse signal; according to the method, hardware resources used by the two channels are small, the two channels process signal sets with different properties, priorities do not need to be set for pulse signals to be synthesized, and when pulse overlapping occurs, the probability that each pulse can be reserved is not affected by the priorities; according to time domain feature classification, pulse synthesis is performed by taking a single pulse as a unit, so that the condition of large-scale pulse loss is avoided.

This invention provides an indene-based organic compound, its preparation method, and its applications, relating to the technical field of organic synthesis. The preparation method includes the following steps: mixing and reacting a benzyl alcohol-based compound, an alkyne, a catalyst, and an auxiliary agent in a solvent to obtain the indene-based organic compound; the catalyst includes at least one selected from ferric chloride, trifluoromethanesulfonic acid, boron trifluoride diethyl ether, and scandium trifluoromethanesulfonate; the auxiliary agent includes at least one selected from p-toluenesulfonyl isocyanate, chlorosulfonyl isocyanate, dibenzoylmethane, and aminosulfonic acid. The method of this invention not only features mild reaction conditions and high product selectivity, but also a broad substrate range, simple post-processing, and convenient operation, enabling efficient and rapid synthesis of the target product.

The invention provides a method for preparing a multi-heterojunction electrocatalyst by recycling a waste lithium ion battery electrode material, the multi-heterojunction electrocatalyst and application of the multi-heterojunction electrocatalyst. The invention provides an electrode material recycled from a waste lithium ion battery electrode. Carrying out ball milling on the recovered electrode material, adding a solvent and a nitrogen-containing polymer, and stirring to prepare a spinning solution; performing high-voltage electrostatic spinning on the obtained spinning solution to obtain a spinning film; and placing the spinning film in a heating container, and carrying out gradient heating treatment in an inert atmosphere to obtain the multi-heterojunction electrocatalyst. The method disclosed by the invention has the characteristics of simplicity in synthesis, convenience in operation, wide application range and the like, the preparation condition is mild, the method is simple and easy, special equipment is not needed, the cost is relatively low, and a road is paved for quickly and efficiently recycling the waste batteries.

The application belongs to the technical field of antioxidant drug development, and discloses a caffeic acid derivative, a preparation method and application thereof. The caffeic acid derivative is a compound shown in formula 2 or a pharmaceutically acceptable salt thereof, and a solvate of the compound shown in formula 2 or the pharmaceutically acceptable salt thereof. The caffeic acid derivative is a novel compound, and the compounds are designed and successfully synthesized for the first time, and the structures thereof are characterized. The preparation method of the caffeic acid derivative is simple, convenient to operate, and capable of rapidly synthesizing the compounds. Research finds that the caffeic acid derivative has good antioxidant activity, and has a good application prospect in the treatment of oxidative stress.

In a first aspect, the invention relates to a battery, typically a rechargeable secondary battery; in a second aspect, the invention relates to an improved electrolyte for such a solid-state battery, i.e. a medium that includes ions in said battery and conducts electricity by the movement of these ions rather than by electrons; in a third aspect, the invention relates to a method of producing such a solid crystalline electrolyte; and in a fourth aspect, the invention relates to a product obtained by said method. The invention provides an improved battery performance.

The present invention provides a continuous synthesis method of a high-entropy oxide with controllable crystal form, components and proportions, and belongs to the technical field of inorganic materials. The present invention adopts a subcritical water mixing process and a rapid annealing process, and the synthesis method is simple and easy to implement, and can realize the rapid synthesis of high-entropy oxides, greatly improving the synthesis efficiency of high-entropy oxides; the present invention can adopt a preparation method of continuous sampling + high-throughput processing, and can quickly realize the uninterrupted continuous production of different high-entropy oxides, which is conducive to industrial batch production; the present invention can be applied to the controllable synthesis of a variety of high-entropy oxides with different crystal forms, different element components, and different element proportions, and has a wide range of applicability, which is conducive to the testing and development of different high-entropy oxides.

The invention discloses nanoscale Ti3O prepared from titanium metal powder, a preparation method of the nanoscale Ti3O and application of the nanoscale Ti3O to preparation of an acidic oxygen evolution electrocatalyst, and belongs to the technical field of metal powder processing. According to the method, the nano titanium metal powder is used as a raw material and is controllably and selectively oxidized into the nano-scale Ti3O under the conditions of proper atmosphere, reaction temperature and reaction time, and the prepared nano-scale Ti3O has good conductivity and high specific surface area. The preparation method has the characteristics of simple process, low equipment and operation requirements, high product purity, high consistency and easiness in batch preparation, and the prepared nanoscale Ti3O can be used as a carrier of various noble metals, so that the acidic oxygen evolution electrocatalyst M (at) Ti3O with the noble metal core-shell structure is prepared, M is Pt, Ir, Rh or Ru, and the preparation method is simple and easy to implement. The prepared electrocatalyst has excellent acidic oxygen evolution reaction activity and stability, and has great application potential in a proton exchange membrane water electrolyser.

The invention discloses double-network conductive hydrogel and a preparation method and application thereof, polyvinyl alcohol, acrylic acid and ferric sulfate are used as main raw materials, and polyvinyl alcohol / polyacrylic acid-iron ion double-network hydrogel, namely PVA / PAA-Fe < 3 + > hydrogel, is prepared through free radical polymerization and a direct soaking method by using redox reaction between tannic acid and Fe < 3 + >. The PVA / PAA-Fe < 3 + > hydrogel prepared by the embodiment of the invention is relatively good in strength, toughness and conductivity, has no obvious difference in conductivity in a tensile deformation mode, and has potential application in the field of stretchable conductors.

The invention discloses a method for synthesizing oligopeptide 1, which belongs to the technical field of polypeptide synthesis, and comprises the following steps: synthesizing H-Gly-His-OH, synthesizing Boc-Gly-His(Boc)-OH, synthesizing Boc-Gly-His(Boc)-Lys(Boc)-OH, synthesizing H-Gly-His-Lys-OH, and obtaining oligopeptide 1. The invention has the beneficial effects that each step of the method is simple and fast to synthesize, and high-quality products can be obtained. Through four-step reaction, dipeptide can be quickly synthesized, two protections are applied in one step, all protections are removed in one step, and the final product can be recrystallized to obtain a qualified product, with a short production cycle and low production cost.

The invention provides a halide electrolyte, a preparation method thereof and an electrochemical device, and particularly relates to the technical field of solid-state batteries. The chemical formula of the halide electrolyte is Li < 2 + n > Zr < 1-n > MnCl < 6-x-y > Br < x > I < y >, wherein n is more than 0 and less than or equal to 0.6; 0 < = x < = 6, 0 < = y < = 6, and x + y < = 6; m is a doping element and is selected from one or more of V, Cr, Mn, Fe, Co and Ni, and the preparation method of the halide electrolyte comprises the following steps: uniformly mixing raw materials according to the stoichiometric ratio of the chemical formula of the halide electrolyte, dispersing the raw materials in a solvent, and carrying out wet grinding treatment to obtain wet grinding slurry; carrying out drying treatment on the wet grinding slurry to obtain a halide precursor; and carrying out microwave sintering on the halide precursor to obtain the halide electrolyte. The preparation method can effectively improve the performance and production efficiency of the electrolyte, and can greatly reduce the synthesis cost of the halide electrolyte.

The application belongs to the technical field of hydrogen storage materials, and specifically discloses a rapid preparation method of magnesium borohydride. First, magnesium hydride and rare earth borate (yttrium borate, lanthanum borate, etc.) are uniformly mixed and then subjected to solid-phase ball milling treatment to obtain a solid-phase ball milling product, namely, magnesium borohydride; then, the solid-phase ball milling product is uniformly mixed in a solvent, and high-purity magnesium borohydride can be obtained after purification. The raw material, rare earth borate, used in the application can be synthesized by a simple hydrothermal method, and the process is simple and low in cost. The yield of nearly 50% can be achieved in only 2 hours, which has the industrial production potential of rapidly synthesizing magnesium borohydride and can ensure the high purity of the prepared magnesium borohydride.

The application belongs to the technical field of anti-inflammatory drug development, and discloses an indometacin derivative containing 2-amino-1,3,4-thiadiazole and preparation and application thereof. The derivative is a compound with the structure shown in formula 2 or a pharmaceutically acceptable salt thereof. The application first designs and successfully synthesizes a novel indometacin derivative containing 2-amino-1,3,4-thiadiazole, and the structure is characterized. The preparation method of the indometacin derivative containing 2-amino-1,3,4-thiadiazole is simple, convenient to operate, and can quickly synthesize the compounds. Research shows that the indometacin derivative containing 2-amino-1,3,4-thiadiazole has good anti-inflammatory activity and good application prospect in inflammatory diseases.

The invention discloses a method for high-selectivity dechlorination electro-catalytic synthesis of ester compounds, according to the method, an electrochemical method is utilized, ORR (oxygen reduction reaction) is coupled with a dechlorination cascade chemical reaction, high-selectivity dechlorination is carried out on trichloromethyl compounds to synthesize the ester compounds, the method is mild in preparation condition and can be carried out at normal temperature and normal pressure, and the method is suitable for industrial production. And the method has the advantages of high selectivity, high yield and the like.

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.

The invention discloses a method for preparing an efficient and stable charcoal-based nano-catalyst based on Joule heating and a regeneration method of the efficient and stable charcoal-based nano-catalyst, and relates to a preparation method and a regeneration method of a charcoal-based nano-catalyst. The invention aims to solve the problems that an existing metal nano-catalyst cannot stably nucleate in charcoal cell walls and a charcoal-based nano-catalyst cannot have efficient catalytic activity and stability at the same time. The method comprises the following steps: 1, preparing a transition metal salt solution; 2, carbonizing and activating; 3, acid etching; 4, surface dispensing; and 5, Joule heating treatment. The regeneration method comprises the following steps: carrying out carbon thermal shock treatment on the passivated efficient and stable charcoal-based nano-catalyst. The method is used for preparing the efficient and stable charcoal-based nano catalyst based on Joule heating and regenerating the efficient and stable charcoal-based nano catalyst.

The application belongs to the technical field of anti-inflammatory and antioxidant drug development, and discloses a resveratrol imine derivative, a preparation method and application thereof. The resveratrol imine derivative is a compound with the structure shown in formula 2 or a pharmaceutically acceptable salt thereof, and a solvate of the compound with the structure shown in formula 2 or the pharmaceutically acceptable salt thereof. The resveratrol derivative is a novel compound, and the compounds are designed and successfully synthesized for the first time, and the structures thereof are characterized. The preparation method of the resveratrol derivative is simple, convenient to operate, and capable of rapidly synthesizing the compounds.

The invention relates to a synchronous phase angle synthesis method, a synchronous compensator control method, a synchronous phase angle synthesis system, synchronous compensator control equipment and a medium. According to the synchronous phase angle synthesis method, the synchronous phase angle can be rapidly synthesized through the electrical parameters of the converter, the control transfer function and the controlled oscillator, and amplitude networking control can be achieved. According to the synchronous compensator control method, the synchronous phase angle can be rapidly synthesized through the synchronous phase angle synthesis method, so that the virtual potential control algorithm accurately outputs the reference current according to the amplitude of the virtual potential, the synchronous phase angle and the power grid alternating current voltage, the response speed of a current converter in the synchronous compensator can be improved, and the service life of the current converter is prolonged. And the active power of the current converter in the synchronous compensator can be quickly controlled through the reference current, so that the stability of the synchronous compensator can be improved.

The invention discloses a multi-channel nonlinear phase signal synthesis method and system. The method comprises the following steps: controlling a plurality of channels to collect data according to a frequency sequence; the one-out-of-two switch is controlled to be switched to a calibration signal source, and a signal is sent to multiple channels at the same time; the accurate frequency offset of each channel is obtained, and the frequency position in a baseband after one path of signal is synthesized is calculated; obtaining the accurate time difference of each channel and the amplitude difference value of each channel; calculating a mixing cos and sin phase value table according to the frequency position of each channel in the synthetic baseband, writing the phase value table into a memory, and controlling an alternative switch to be switched to an antenna to access a real signal; and performing operation processing on each channel according to the deviation value obtained by preprocessing, and merging the processed data of each channel into a signal. According to the scheme, high-precision control of time or frequency is realized without depending on complex hardware design, and rapid synthesis of multiple paths of signals can be realized at low cost through a digital algorithm mode.

The invention provides a distributed seismic data segmentation and extraction device, method and application, and belongs to the field of seismic exploration. The method comprises the following steps: acquiring original seismic data by adopting a plurality of distributed seismic prospecting instruments, and storing the original seismic data by taking time as a label; the data processing center issues a single-shot segmentation extraction command to the plurality of distributed seismic detectors through the narrowband Internet, and the plurality of distributed seismic detectors segment and extract seismic data according to the single-shot segmentation extraction command; when a segmentation and extraction ending command is received, the plurality of distributed seismic detectors transmit the segmented and extracted seismic data to a data processing center through a 5G network; and the data processing center synthesizes and stores a shot gather file. According to the invention, while the integrity of the seismic data is ensured, the transmission of invalid seismic data is effectively reduced, and the processing demand of a data processing center is reduced, so that the seismic data processing efficiency is greatly improved.

This invention relates to the field of biochromatography, specifically to an in-situ synthetic membrane protein affinity biochromatographic column, its preparation method, and its applications. The method employs cell-free protein expression and covalent immobilization affinity chromatography techniques to construct a novel in-situ synthetic membrane protein biochromatographic column. This invention enables, for the first time, the unidirectional insertion of a single membrane protein with a natural quaternary structure onto a stationary phase bound to liposomes. This invention eliminates the need for cell culture or recombinant protein preparation; it allows for the rapid synthesis of single, high-purity membrane proteins with stable and controllable content; and the membrane protein maintains its natural transmembrane structure and consistent orientation on the stationary phase. Flexible cDNA construction provides possibilities for drug binding site analysis. This invention can be applied to the screening of lead compounds targeting membrane proteins and the determination of equilibrium dissociation constants, providing a practical method for the rapid preparation of membrane protein immobilized affinity biochromatography or other biological solid-phase materials.

The invention belongs to the technical field of organic synthesis, and particularly relates to a synthesis method of 2 '-deoxy-2'-fluoro Arabic adenosine and an intermediate thereof, which specifically comprises the following steps: in an organic solvent, carrying out reaction on hydroxyl in an alkali activated compound 1 # imgabs0 # and a perfluorobutanesulfonyl fluoride reagent to obtain 2 '-deoxy-2'-fluoro Arabic adenosine; the 2 '-deoxy-2'-fluoro Arabinadenosine intermediate and an acetic acid solution of hydrobromic acid are subjected to a nucleophilic substitution reaction to obtain a product, the product and a compound 6 # imgabs 1 # are subjected to a nucleophilic substitution reaction, and the obtained product is subjected to deprotection in an alkali solution to obtain the 2 '-deoxy-2'-fluoro Arabinadenosine compound. The method is simple, efficient, green, environment-friendly, high in yield, simple and convenient to purify, free of column chromatography and suitable for industrial production, and the synthesized 2 '-deoxy-2'-fluoroArabic adenosine can be applied to drug intermediates.

The invention relates to the field of ion sieve adsorbent materials, and discloses a lithium extraction ion sieve adsorbent and a preparation method and application thereof. The method comprises the following steps: in the presence of an organic solvent, dropwise adding acryloyl chloride into a mixed solution I containing spiropyrane and triethylamine to carry out a mixed reaction I to obtain polyspiropyrane; relative to 1g of the mixed solution I; dropwise adding the mixed solution I containing the poly-spiropyrane into a metal salt solution, and carrying out a mixed reaction I to obtain the lithium ion sieve adsorbent; the mixed solution I also contains a ligand for synthesizing MOFs (Metal-Organic Frameworks); the metal salt solution contains at least two of ferric salt, zircon salt and zinc salt. The lithium ion sieve adsorbent prepared by the preparation method provided by the invention can be used for reversibly adsorbing and desorbing adsorbed ions, can be used for efficiently extracting Li < + > from saline water, and also has relatively high selectivity on Na < + >, Mg < 2 + > and Ca < 2 + >; and the lithium ion sieve adsorbent is relatively good in cycle performance.