780 results about "Material synthesis" patented technology

The invention discloses a material synthesis data extraction method and system based on a knowledge enhancement large model, and relates to the related field of artificial intelligence, and the method comprises the steps: retrieving literature data, and constructing a material synthesis knowledge text by executing data denoising and OCR text conversion; performing LoRA fine tuning on the basic large model, introducing a field instruction data set to perform fine tuning learning, and determining an extraction large model; performing semantic partitioning and vectorization on the material synthesis knowledge text, constructing a multi-level retrieval framework, performing retrieval enhancement in combination with a material science knowledge base, and determining an enhanced knowledge text; and constructing a data extraction prompt, combining the enhanced knowledge text with a material to synthesize a knowledge text, inputting the knowledge text into an extraction large model, and executing knowledge extraction processing. The problem that the accuracy of data extraction is insufficient in the prior art is solved, and the effect of improving the accuracy of data extraction is achieved. Meanwhile, manual work can be replaced to complete literature analysis extraction and domain knowledge association, and support is provided for material synthesis process recommendation.

The invention discloses a method for designing a new pollutant perfluorinated compound adsorption material based on a large language model. The method comprises the following steps: firstly, constructing a mixed retrieval enhancement generation framework fusing a structured knowledge graph and vectorized semantic retrieval; then constructing a field knowledge graph and semantic representation big language model oriented to the PFAS adsorption material by utilizing a big language model framework; generating an initial material design framework through a large language model, performing iterative adjustment on a material structure in combination with a machine learning model, and predicting and generating a performance-optimized PFAS adsorption material; and finally, based on knowledge graph reasoning and vector storage information, combining molecular structure information, and recommending an experiment path for PFAS adsorption material synthesis and verification. According to the method, the knowledge graph and the semantic model are constructed to realize automatic extraction and systematization of domain knowledge, an interpretable design rule is generated through data reasoning, an optimization code is automatically generated through combination of LLM and ML, an experiment path is recommended to accelerate material design iteration, the experiment period is shortened, and a reliable screening scheme is provided.

The invention discloses a mechanical arm trajectory planning method and device based on generative adversarial imitation learning, and relates to the technical field of mechanical arms. The method comprises the following steps: acquiring joint state data of the mechanical arm; inputting the mechanical arm joint state data into a trained improved generative adversarial imitation learning model to obtain a mechanical arm action, and circularly executing data acquisition-input of the improved generative adversarial imitation learning model to finally obtain a mechanical arm track; wherein in the improved generative adversarial imitation learning model, the reward function is a dynamic reward function, and parameters in the dynamic reward function are dynamically adjusted according to the task completion degree. According to the technical scheme, the learning efficiency can be improved. Compared with the prior art, the mechanical arm trajectory planning method has the advantages that the stability is obviously improved, expert trajectories can be better simulated, the success rate and accuracy of mechanical arm trajectory planning based on generative adversarial imitation learning are greatly improved, and a solid foundation is laid for practical application of mechanical arms in the fields of material synthesis and the like.

The invention discloses a reaction kettle device for synthesis of an iron phosphate material, and particularly relates to the technical field of synthesis of battery materials, and the device comprises a kettle body, a driving motor, a transmission disc and a turbo-type paddle. A sealing cover is arranged at the top of the kettle body, a driving motor is connected with a rotating shaft, an anchor blade is arranged below the rotating shaft, and the bottom realizes turbine blade lifting and sleeve guide limiting through transmission of a piston cavity and compressed gas; and a ratchet wheel on the outer wall of the rotating shaft is meshed with a pawl in the transmission disc in a one-way mode, and intermittent wall scraping is achieved. According to the device, dead angles are broken through synergistic stirring of the double blades, the mixing uniformity and the reaction rate are improved, materials adhering to the wall are efficiently removed through intermittent wall scraping, the stable reaction environment is guaranteed through multiple sealing, the structure is flexible to adjust, maintenance is convenient and fast, efficient and high-quality synthesis of the iron phosphate material can be achieved, and the device is suitable for industrial large-scale production.

The invention discloses a preparation method of a mesoporous Zn-ZSM-5 molecular sieve for preparing aromatic hydrocarbon from methanol, and belongs to the technical field of synthesis of inorganic materials. Aiming at the problems that a conventional mesoporous Zn / ZSM-5 molecular sieve catalyst Zn blocks orifices, the mesoporous structure is disordered, the molecular sieve solid yield is low, a molecular sieve framework is seriously damaged and the like, the preparation method comprises the following steps: uniformly mixing zinc gluconate with an aluminum source, a silicon source and a template agent, putting the mixture into a closed reaction container, carrying out hydrothermal crystallization, and sequentially washing, drying and roasting to obtain the mesoporous Zn / ZSM-5 molecular sieve catalyst. The sodium type molecular sieve is obtained; the preparation method comprises the following steps: carrying out multiple ion exchange on a sodium type molecular sieve by using an ammonium chloride solution, and sequentially carrying out suction filtration, washing, drying and roasting to obtain the mesoporous Zn-ZSM-5 molecular sieve. According to the preparation method of the methanol-to-aromatic hydrocarbon Zn / ZSM-5 molecular sieve provided by the invention, the obtained molecular sieve is used in the methanol-to-aromatic hydrocarbon process, and has the characteristics of high carbon deposition resistance, high aromatic hydrocarbon selectivity, low Zn wastage rate and the like.

The invention aims to serve the national strategic emerging industry, and discloses a deterministic material synthesis method and a deterministic material synthesis system for pre-nucleation chiral intervention (PNChI for short), which are suitable for one-dimensional or quasi-one-dimensional material systems (such as carbon nanotubes, biomacromolecules and the like) with formalized chiral tags. According to the method, before irreversible closed nucleation of a precursor is completed, deterministic authorization of a target chiral index (n, m) is realized in a controllable time window through at least one engineering intervention mechanism (such as physical field regulation, catalytic interface design, information coding guidance and the like) based on distinguishable physical properties, and consistency is kept in subsequent growth. The system comprises a programmable intervention unit and an intelligent sequence control module, and does not depend on a separation or screening step after nucleation. The single chiral index abundance in the obtained material is greater than or equal to 95%, preferably greater than or equal to 98%. The statistical limitation of traditional chiral control is broken through, a general synthesis normal form from'instruction input 'to'structure output' is constructed, and the method is suitable for high-consistency application scenes such as semiconductors, quantum devices, catalysts and biological recognition.

The invention discloses a full bio-based copolymer based on a citric acid bicyclic monomer, a preparation method and an application, and belongs to the technical field of material synthesis, citric acid-derived bicyclic OPD diol and OPBMC diester are synthesized through oxidation reduction and transesterification, and then 1, 4-butanediol is partially replaced with OPD or 2, 4-butanediol is partially replaced with OPBMC through melt phase polycondensation reaction. Two series of random copolyester PBxOyF copolymer and PBOmFn copolymer of the PBF are prepared by adding 2, 5-dimethyl furandicarboxylate into the PBF, and then adding the PBxOyF copolymer and the PBOmFn copolymer into the PBF. According to the full-bio-based copolymer based on the citric acid bicyclic monomer, the preparation method and the application, the citric acid bicyclic monomer obviously improves the glass transition temperature and shows good mechanical properties; therefore, the bicyclic monomer based on citric acid has huge potential in the aspect of synthesizing novel bio-based copolyester with expected thermodynamic properties, and is expected to further expand the application range of the 2.5 furandicarboxylic acid-based polyester.

The invention relates to the field of high polymer material synthesis, and discloses an ultrasonic-enhanced water-soluble nano polymer synthesis method, which comprises the following steps: synergistically regulating monomer dispersion and free radical activation processes by adopting low-frequency and high-frequency ultrasonic alternating action; the ultrasonic power and the action time sequence are dynamically adjusted based on the real-time temperature and PDI data, and molecular chain thermal fracture is inhibited; reaction parameters are globally optimized in combination with a genetic algorithm, so that the yield and the quality are synchronously improved; a functional monomer containing a sulfonic group and an amide group is selected, and an ultrasonic cavitation effect is utilized to directly realize in-situ embedding of a functional group into a polymer main chain. The technical bottlenecks that traditional single-frequency ultrasonic energy distribution is uneven and a post-modification process is complex are broken through, and the obtained nano polymer has the characteristics of high water solubility, narrow particle size distribution and customizable functionalization and is suitable for the fields of medical carriers, environment-friendly film materials and the like.

The invention belongs to the technical field of solid waste recycling and porous carbon material synthesis, and particularly relates to abandoned wind turbine blade-based porous carbon as well as a preparation method and application thereof. The method comprises the following steps: carbonizing waste wind turbine blade powder in first protective gas, etching, mixing the obtained primary porous carbon material with an activator, and carrying out pyrolysis activation in second protective gas to obtain the waste wind turbine blade-based porous carbon. According to the method, the waste wind turbine blade is converted into the graded porous carbon material with micropores, mesopores and macropores, the diffusion performance of gas in the pore channels is greatly improved through the synergistic effect of the graded porous structure, the performance advantages of high capacity, fast mass transfer and high adaptability are shown, a way is provided for high-value recycling of the waste blade, and the method is suitable for industrial production. And a low-cost material is provided for the fields of energy storage and conversion, environmental governance, catalysis, adsorption and separation and the like, and the material has remarkable economic and environmental benefits and a wide commercial prospect.

The invention discloses a preparation method and application of an artificially synthesized carbon-based functional biofilm repair material, and relates to the technical field of material synthesis and modification. The method comprises the following steps: inoculating a synthetic functional flora into an inorganic salt culture medium according to the inoculum size of 1.9-2.1% in volume fraction, culturing, centrifuging, collecting thalli, and adjusting OD600 to 0.09-0.11 by using the inorganic salt culture medium under a sterile condition to obtain a compound bacterial solution; mixing the composite bacteria solution, the biological membrane culture solution and the carbon-based material, then carrying out shake culture at 29-31 DEG C, then replacing nutrients, continuing shake culture at 29-31 DEG C, removing an upper-layer turbid liquid, and cleaning with a PBS (Phosphate Buffer Solution) to obtain the artificially synthesized carbon-based functional biological membrane repair material. The invention can obtain the preparation method and the application of the artificially synthesized carbon-based functional biological membrane repair material.

The invention provides an MOFs synthesis automation simulation method and system based on a large language model, and belongs to the field of artificial intelligence and nanometer material synthesis. The method comprises the following steps: preparing MOFs samples under different synthesis conditions, carrying out structural characterization and performance testing, and generating and storing a synthesis condition-structure-performance data set; a user puts forward a sample synthesis requirement, an LLM generation general task is divided into data field analysis, data correlation analysis, feature engineering processing, machine learning model construction, machine learning model optimization, machine learning model prediction and analysis subtasks, and subtask planning is generated and fed back; after the user confirms, the LLM reads a related MOFs sample data set according to the disassembled subtasks; and according to the subtask planning, calling a code interpreter tool, performing programming and execution of the subtasks, integrating results of all the subtasks, generating a report and outputting an MOFs sample synthesis scheme. According to the invention, the research and development period of MOFs is shortened, and the cost is reduced.

The invention discloses a simple preparation method of a barium-based metal organic framework (Ba-H2Sip) and proton conduction application of the barium-based metal organic framework (Ba-H2Sip), belongs to the field of functional material synthesis and energy application, and is characterized in that functional differentiation design of a 5-sulfoisophthalic acid ligand: a sulfonic group forms a two-dimensional layered structure by chelating Ba < 2 + >; the carboxyl groups are differentiated into'anchoring carboxyl groups' for constructing a three-dimensional supramolecular skeleton and'proton supply carboxyl groups' for providing a proton source, and the design is reported for the first time in Ba-based MOFs; according to the present invention, the large-scale preparation can be achieved by stirring the low-cost raw material in 1 mol / L hydrochloric acid at the room temperature, the yield exceeds 70%, the product can resist 8 M acid and pH = 13 alkali liquid, the conductivity at 90 DEG C / 90% humidity can achieve 1.39 * 10 <-2 > Scm <-1 >, the high-temperature process is not required, the raw material is low in cost and easy to obtain, and the feasible scheme is provided for the high-efficiency proton conductor industrialization.

The embodiment of the application relates to an oxygen reduction catalyst for constructing a local alkaline-like microenvironment and a preparation method and application thereof, and belongs to the technical field of material synthesis. The preparation method of the oxygen reduction catalyst for constructing a local alkaline-like microenvironment comprises the following steps: (1) loading Fe on a core MOF material to obtain a core Fe / MOF material, and then constructing metal atoms M with water activation capacity in-situ on a shell MOF material by an epitaxial growth method to obtain a core-shell Fe / MOF@M / MOF precursor material, and Fe and M are limited in the core and the shell respectively; (2) performing in-situ carbon conversion on the Fe / MOF@M / MOF precursor material by pyrolysis to obtain a FeNC@MNC oxygen reduction catalyst for constructing a local alkaline-like microenvironment in natural seawater. The catalyst with water activation capacity provided in the embodiment overcomes the challenges of low ion conductivity and chloride adsorption in natural seawater, enhances the stability and activity of the catalyst in seawater, and realizes efficient and stable oxygen reduction.

The present invention relates to a bimetallic layered hydroxide / phytic acid synergistic flame-retardant nylon 6 composite material and its preparation method and application, belonging to the technical field of flame retardant material synthesis. The composite material is prepared from nylon 6, bimetallic layered hydroxide and phytic acid. Wherein, the phosphate functional group in the phytic acid can chelate with the metal ion in the bimetallic layered hydroxide, thereby forming a novel flame retardant. When combustion occurs, the layered structure and thermal decomposition products such as metal oxides, metal phosphates, and carbon-containing aromatic network structure substances in the flame retardant help to suppress the release of smoke and toxic gases, and the release of metal ions and phosphorus-containing free radicals helps to suppress the spread of fire. Compared with pure nylon 6, the peak heat release rate and total heat release rate of the composite material are greatly reduced, the limiting oxygen index is greatly increased, and the vertical combustion test reaches V-0 level. At the same time, the raw material sources in the preparation method of the composite material are abundant, the operation is simple, and it is suitable for scaled-up production.

The invention discloses a preparation method of a cobalt-based nano-foam hybrid catalyst and application of the cobalt-based nano-foam hybrid catalyst in electrocatalytic synthesis of urea, and the preparation method comprises the following steps: dissolving glucose, urea, cobalt nitrate and other metal salts in deionized water, and stirring to form a uniform solution; heating the solution to form porous foam; and putting the porous foam into a tubular furnace, heating in an air atmosphere, cooling to room temperature, and carrying out heat treatment in argon-hydrogen mixed gas to form the cobalt-based nano-foam hybrid catalyst. According to the preparation method of the cobalt-based nano-foam hybrid catalyst, the material synthesis method is simple and convenient, CoCr < 1% > has the optimal Faraday efficiency and yield under-0.3 V (RHE), 23% of urea Faraday efficiency and 60 mmoL g <-1 > cat h <-1 > urea yield are achieved under the condition that CO2 is saturated in 0.2 M KHCO3 and 20 mM KNO2 electrolyte, the current density reaches 16 mA cm <-2 >, and compared with the same type of catalysts, the cobalt-based nano-foam hybrid catalyst has the advantages that the cobalt-based nano-foam hybrid catalyst has the advantages that the cobalt-based nano-foam hybrid catalyst is low in cost and good in performance. The device has the advantages of potential correction and lower energy consumption.

This invention provides a method and application for the comprehensive utilization of chlor-alkali salt mud solid waste to prepare a composite de-icing agent, belonging to the field of comprehensive utilization of solid waste resources and composite material synthesis technology. The invention first prepares a slurry by mixing chlor-alkali salt mud with water. Then, under the action of an acidification aid and an ionic liquid, organic and inorganic acids are added in a single step, followed by precipitation of the composite de-icing agent in an alcohol precipitation solution. The method of this invention achieves a salt mud utilization rate of 86.55-88.85% and an effective component extraction rate of 96.70-99.27%, especially for Ca... 2+ Na + K + Mg 2+ Al 3+ The extraction rates reached 95-99.99%, 99.9%, 99.9%, 85.5-95.0%, and 80.5-90.0%, respectively, and also improved the extraction efficiency of Ca in the solution. 2+ Na + K + Mg 2+ Al 3+ The precipitation rates reached 95.5-99.5%, 75.5-80.5%, 72.5-75.5%, 95.5-99.5%, and 71.5-75.5%, respectively, and the product yield reached 90.80-95.08%. It has broad prospects for snow melting and ice removal in low-temperature environments of -15℃ to -20℃.

The invention relates to the technical field of organic photoelectric materials, and particularly discloses a non-condensed ring small molecule acceptor material based on a quinonoid structure as well as a preparation method and application of the non-condensed ring small molecule acceptor material. According to the invention, easily available 1, 4-diacetyl piperazine-2, 5-diketone is used as a center, an alkyl chain and Ar are used for modification, EG is used as an end group, the non-condensed ring A-D-A '-D-A type structure acceptor material based on a quinone structure is constructed, and the general formula is shown in the specification. Wherein the PCE of the acceptor material which is modified by bithiophene and takes 2-(3-ethyl-4-oxothiazolidine-2-subunit) malononitrile as a terminal group reaches 15%. The non-condensed ring small molecule acceptor material based on the quinonoid structure is simple in synthesis process, and an effective strategy is provided for solving the problem of the overall performance of an organic solar cell.

The invention provides a synthesis method of adsorption resin for removing immune globulin, and relates to a high polymer material synthesis technology, polyethylene glycol (PEG) or sulfobetaine (SBMA) is grafted through RAFT polymerization, the thickness of a grafting layer is 50-150nm, the nonspecific adsorption capacity of albumin is less than 5ng / cm < 2 >, photosensitive groups (such as phenyl azide) and ultraviolet light (254nm) are introduced to trigger crosslinking, and the coating shedding rate is less than 0.5% / time. According to the present invention, the cyclic stability is improved by 2 times, the Protein A directional capture antibody is grafted on the surface of the acrylic resin grafted with the polyethylene glycol or sulfobetaine, the IgG adsorption capacity achieves 150 mg / g, the specificity is more than 95%, the polyethylene glycol (PEG) is grafted on the surface of the magnetic particle by using ATRP / RAFT controllable polymerization, the organic solvent use amount is reduced by more than 80%, and the product adsorption capacity achieves 150 mg / g.

The invention relates to the technical field of synthesis of electrochemical materials, in particular to an electrocatalyst of magnesium-doped copper oxide nanospheres and a preparation method and application of the electrocatalyst, and the electrocatalyst is prepared through a one-step hydrothermal method and is of a nanosphere structure with a uniform microstructure. According to the catalyst, in a wide voltage range from-1.277 V vs.RHE to-1.677 V vs.RHE, relatively high Faraday efficiency of electrochemical reduction of carbon dioxide into C2 + chemicals is realized. In addition, the technology is green and environment-friendly, the raw materials used in the technology are cheap, the preparation process is simple, the energy consumption is low, a new thought is provided for preparation of the electrocatalyst for generating high-added-value products, and the method has a good application prospect.

The invention relates to silicon powder as well as a preparation method and application thereof. In an ultraviolet Raman spectrum of the silicon powder, no characteristic peak exists near 240 cm <-1 >; or, in the ultraviolet Raman spectrum of the silicon powder, in a characteristic region with the vibration frequency not larger than 600 cm <-1 >, at least one characteristic peak not larger than 240 cm <-1 > exists, and the sum of the peak areas of the characteristic peaks not larger than 240 cm <-1 > accounts for more than or equal to 20% of the total area of the characteristic peaks in the characteristic region with the vibration frequency not larger than 600 cm <-1 >. The silicon powder disclosed by the invention can be applied to synthesis of a silicon-containing crystalline state material, and has the characteristics of good uniformity, easiness in activation and crystallization, low dependence on an organic template agent, shortening of a crystallization induction period and the like.

The present invention discloses a method, system and storage medium for assisting material synthesis using a multimodal large model. The method establishes a corresponding relationship between the embedding of material raw materials and processing processes and the embedding of material performance by constructing a multimodal large model of material raw materials and processing-performance. In the application stage, the method can realize three reasoning functions: reasoning about material performance based on material raw materials and processing processes, inferring the required material formula based on target performance, and judging the credibility of a given formula. The method and system provided by the present invention significantly improve the efficiency of material formula development while ensuring the reliability of the formula. The present invention is applicable to the formula development of various materials such as rubber, plastic, and coatings, and has important practical value.

The invention relates to an oxsalazine-loaded hollow mesoporous prussian blue / polydopamine nano-enzyme as well as a preparation method and application thereof, and belongs to the technical field of material synthesis and molecular biology. Osalazine is loaded in hollow mesoporous Prussian blue (HMPB), and the surface of the hollow mesoporous Prussian blue is coated with a polydopamine layer. The composition is used for promoting IBD treatment. The drug loading system has good peroxidase activity, can quickly release drugs in an inflammatory environment for a long time, plays effective anti-inflammatory and anti-oxidation roles in IBD treatment, and has good biological safety.

The invention belongs to the technical field of material synthesis and energy, and particularly discloses a sodium-ion battery positive electrode layered material simultaneously doped and coated with metal elements, and a preparation method and application of the sodium-ion battery positive electrode layered material. The chemical formula of the material is NaxNiaMbMn1-a-bO2 / yMO, wherein M is one or more of copper, iron, magnesium, zirconium, zinc, aluminum, molybdenum and cobalt. According to the material prepared by the method, the M element exists in a P2 phase structure and also exists on the surface of the material in an oxide form. The method is low in process cost, simple in step and easy to operate, the reaction process of oxidizing the metal powder and doping the metal powder into the material is controlled according to the principle that the metal powder is doped and coated with the metal oxide in one step and activated carbon reacts with oxygen in one step to generate carbon monoxide, and redundant carbon is removed through the oxygen atmosphere; the prepared material not only can expand a sodium ion diffusion channel, but also can improve the rate capability and the cycling stability of the material.

A method for preparing a sodium iron sulfate cathode material for a sodium-ion battery without calcination, which relates to a method for preparing a sodium iron sulfate cathode material. It aims to solve the problems of complex synthesis process, low production efficiency and high production cost of the existing sodium iron sulfate cathode material. Preparation method: Mix a sodium source, an iron source and a carbon-coated material, or add a flux thereto to obtain a mixture, and then perform high-energy ball milling on the mixture to obtain the sodium iron sulfate cathode material. The initial discharge specific capacity at a rate of 0.1C is 79.2-88.3 mAh / g, the initial Coulombic efficiency is 87.7%-89.4%, and the median discharge voltage is 3.7-3.8V. The method of the present invention is convenient and efficient, has low energy consumption, is suitable for batch material synthesis, and can be used in the field of sodium-ion batteries.

The invention discloses a continuous synthesis device and method for pseudo-boehmite, and belongs to the field of chemical material synthesis. The device comprises a raw material storage tank, a rotary liquid membrane reactor, a stirring tank, a tubular reactor, a vibration motor and a heating device. Three raw materials stored in different raw material storage tanks are conveyed into a liquid membrane reactor through a pump in a parallel flow mode, slurry generated after reaction flows into a stirring tank by means of gravity and then is conveyed into a tubular reactor which is placed in a heating device and preheated to a set temperature through a pump, and the tubular reactor and a vibration motor are fixed to the same vibration platform. The vibration motor is arranged outside the heating device, and vibration waves generated during operation of the vibration motor are conducted to the tubular reactor through the vibration platform. The slurry is aged in the tubular reactor and enters a product collecting tank after flowing out. The obtained pseudo-boehmite is uniform in particle size distribution, the particle size fluctuation range is small in the continuous synthesis period, energy consumption is reduced through continuous preparation, and efficiency is improved.

The invention belongs to the technical field of synthesis of organic room-temperature phosphorescent materials, and particularly relates to a doped red organic room-temperature phosphorescent material based on a red phosphorescent emitter and a preparation method of the doped red organic room-temperature phosphorescent material. The structure of the red phosphorescent emitter is shown as a formula I. The red phosphorescent emitter is novel in molecular structure, easy to prepare and stable in property. The invention also provides a red organic room-temperature phosphorescent material which has the characteristics of ultra-long service life and high brightness. Experimental data show that the longest red phosphorescence life of the material can reach 794 ms, and meanwhile, the phosphorescence quantum yield of the material is as high as 12.3%.

The invention provides a cobalt tungstate and bismuth vanadate photocatalytic material as well as a preparation method and application thereof, and belongs to the technical field of material synthesis and photocatalytic application. In the presence of monoclinic-phase decahedron BiVO4, CoWO4 nanoparticles grow in situ on an electron-rich (010) crystal face of the CoWO4 nanoparticles through a hydrothermal reaction, and the cobalt tungstate and bismuth vanadate photocatalytic material is obtained. According to the cobalt tungstate and bismuth vanadate photocatalytic material, a simple hydrothermal method is adopted, in the synthesis process, a CoWO4 precursor is guided by electrostatic interaction, preferentially adsorbed and subjected to nucleation growth on the (010) crystal face of BiVO4, a compact chemical bonding interface is constructed through selective growth, the charge migration distance is effectively shortened, and the photocatalytic performance of the material is improved. The interface charge transfer resistance is reduced to the greatest extent, and the formed binary photocatalyst has excellent effects on photocatalytic hydrogen evolution and tetracycline degradation.

The invention relates to the technical field of electro-catalytic material synthesis, in particular to a preparation method of a nano TiO2 (at) AC (at) GPs electro-catalytic anode material, which comprises the following steps: firstly, depositing an amorphous carbon layer AC on the surface of graphite flake GPs by adopting a chemical vapor deposition method to obtain an AC (at) GPs composite material; cTAB is dissolved in a methanol / deionized water mixed solution and stirred evenly to obtain a solution A, a titanium sulfate solution is added into the solution A to obtain a precursor solution B, the precursor solution B and the AC (at) GPs composite material are mixed and then subjected to a hydrothermal reaction, after the reaction, a sample is washed, dried and roasted, and the nano TiO2 (at) AC (at) GPs electrocatalytic anode material is obtained. The preparation process is simple and efficient, the obtained nano TiO2 (at) AC (at) GPs electro-catalytic anode material has excellent electro-catalytic activity and cycling stability, the problems that a traditional graphite anode material is poor in electro-catalytic performance and the like are solved, and the nano TiO2 (at) AC (at) GPs electro-catalytic anode material has wide industrial application prospects.

The invention provides an O3-O2 mixed crystal type layered oxide lithium cobalt oxide positive electrode material as well as a preparation method and application thereof. The positive electrode material is obtained by carrying out Li-Na ion replacement on an O3-P2 mixed crystal type lithium cobalt oxide sodium precursor with a high (Na + Li) / Co atomic ratio, washing and drying, the O3-P2 mixed crystal type sodium lithium cobalt oxide precursor is composed of O3 type lithium cobalt oxide and P2 type sodium cobalt oxide, and the atomic ratio of (Na + Li) / Co is 0.9-1.1. Compared with O3-O2 mixed crystal form lithium cobalt oxide converted from near-pure-phase O2 type lithium cobalt oxide, the material synthesis method provided by the invention has the advantages that most of O3 crystal form parts come from O3-P2 mixed crystal form sodium lithium cobalt oxide, and the material is subjected to high-temperature sintering, so that the crystal structure is more complete, the structure is more stable, and the material has better cycle performance.

The invention discloses a high-performance polyaryletherketone fine synthesis method which structurally comprises the following steps: S1, raw material preparation: mixing a bisphenol monomer, aromatic dihalide, a salt-forming agent and a solvent according to a molar ratio of 1: (0.95-1.05), the amount of the salt-forming agent is 5-10% of the total material mass, and the solvent is phenol or toluene; s2, salt forming reaction: under the protection of nitrogen, heating the mixture to 130-150 DEG C, and stirring for 1-2 hours; s3, prepolymerization: raising the temperature to 180-220 DEG C, and reacting for 2-4 hours to generate a prepolymer; s4, main polymerization: continuously raising the temperature to 260-300 DEG C, and reacting for 1-3 hours to generate polyaryletherketone resin; and S5, post-treatment: cooling the product to room temperature, crushing, washing with deionized water and ethanol in sequence, and carrying out vacuum drying to obtain the target product. The invention belongs to the field of high polymer material synthesis, and particularly relates to a fine synthesis method of high-performance polyaryletherketone.