1071results about How to "Simple manufacturing method" patented technology

The invention belongs to the field of biochar adsorbing materials, and relates to a method for preparing modified biochar with aquatic plant waste and hematite. The method includes the following steps: (1) naturally drying aquatic plants prior to crushing to obtain aquatic plant powder; (2) crushing the hematite to obtain hematite powder; (3) weighing the hematite powder prior to putting the hematite powder into deionized water, and performing ultrasonic treatment to obtain suspension; (4) weighing the aquatic plant powder, soaking the aquatic plant powder in the suspension, and stirring and drying to obtain fully mixed aquatic plant and hematite mixture; (5) weighing the fully mixed aquatic plant and hematite mixture, putting the mixture in a batch-type atmosphere furnace, and feeding nitrogen into the furnace; performing temperature programming to the target temperature, and maintaining final-temperature pyrolysis; after the pyrolysis process is finished, obtaining the target product, namely the modified biochar. The modified biochar has strong adsorbability in nitrate and phosphate, high in stability and reusable.

The invention relates to the technical field of adsorption materials, and discloses a preparation method and application of a hydrogel adsorption material prepared by copolymerizing cellulose with acrylic acid and acrylamide. The method comprises the following steps: extracting cellulose from corn straws; placing cellulose in a sodium hydroxide / urea / water system, stirring and dissolving; the preparation method comprises the following steps: uniformly mixing acrylamide and acrylic acid in water to prepare a modified solution; sequentially adding the modified solution, N, N '-methylene bisacrylamide and potassium persulfate into the cellulose solution, and stirring and mixing; putting the mixed solution into a drying oven for gelation to obtain the cellulose co-polyacrylamide and acrylic acid hydrogel adsorption material. A large number of groups such as hydroxyl and carboxyl are introduced to the surface of the hydrogel adsorption material prepared by the method, the adsorption capacities of heavy metals such as lead, cadmium and copper reach 434.8 mg / g, 277.7 mg / g and 261.8 mg / g respectively, and heavy metal ions in a water body can be effectively and quickly removed.

The invention relates to the technical field of lithium ion batteries, and provides a lithium cobalt oxide composite material which comprises a core body and a coating layer coating the core body, the core body comprises O2-phase lithium cobalt oxide, and the O2-phase lithium cobalt oxide is doped with an element M; the coating layer comprises an oxide containing an N element; the M element comprises at least one of Al, Mg, W, Ti, La, Zr, Ni, Mn and Y; n comprises at least one of Al, Mg, Y, W, Nb, La, Zr, Ti and P. The lithium cobalt oxide composite material provided by the invention is used as a positive electrode material of a lithium ion battery, and the cycling stability of the lithium ion battery under high potential is improved.

The invention provides a redox imidazole covalent organic framework material as well as a preparation method and application thereof, belongs to the technical field of material preparation and photocatalytic preparation of hydrogen peroxide, and aims to solve the technical problem of low activity of a current covalent organic framework in preparation of hydrogen peroxide. The preparation method of the imidazole-connected redox type imidazole covalent organic framework material comprises the following steps: respectively reacting a reactant 2, 7-di-tert-butylpyrene-4, 5, 9, 10-tetraketone monomer with 4, 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ' The preparation method comprises the following steps: mixing 4, 4 '-(pyridine-2, 4, 6-triyl) tribenzaldehyde and a tri (4-formylphenyl) amine monomer, adding a solvent and a catalyst, uniformly stirring, and reacting to obtain the redox type imidazole covalent organic framework material after the reaction is finished. The application comprises the following steps: adding the covalent organic framework, oxygen and the sacrificial agent into water, and reacting under the irradiation of visible light. The preparation method is green, environment-friendly, simple and easy to implement, the prepared material has good thermal stability, and efficient visible light photocatalysis preparation of hydrogen peroxide can be achieved; meanwhile, the catalyst can be recycled and has good photocatalytic stability.

The invention is suitable for the technical field of materials, and provides a binderless fiberboard and a preparation method thereof.The preparation method comprises the steps that wood fibers are subjected to oxidation treatment, and an intermediate is obtained; placing the intermediate in a metal ion solution for non-covalent bond coordination treatment, extruding the solution, and adding polyphenol into the fiber for chelation to obtain a chelated fiber; and assembling the chelate fibers into a plate blank, and carrying out hot pressing treatment to obtain the product. Metal ions and lignin hydroxyl are bonded and coordinated through an activation method, then the metal ions and polyphenol are chelated to form self-adhesion, meanwhile, the non-adhesive fiberboard formed by tightly interweaving and stacking the fibers can reach the national standard in mechanical strength and water absorption expansion rate, the preparation method is simple and easy to implement, raw materials are easy to obtain, and the production cost is low. The method is suitable for mass production; by means of the formed double-network structure, the binderless fiberboard is more compact, higher in stability and excellent in internal bonding strength, bending strength and other mechanical properties. Zero formaldehyde release of the fiberboard is achieved, and the cost is lower.

The invention relates to the technical field of three-dimensional animation production, and discloses a three-dimensional animation production method based on AI deduction real-time rendering output, which comprises the following steps: S1, motion capture: in a motion capture stage, in combination with an AI technology, carrying out real-time analysis and optimization on original motion capture data by using a deep learning algorithm, and through a human body posture estimation technology, carrying out real-time analysis and optimization on the original motion capture data; the motion of the human body can be more accurately captured, and facial expressions and emotion changes are captured in real time in combination with an emotion recognition algorithm, so that more real and vivid animation role performance is provided; by optimizing and simplifying the three-dimensional animation production method, the production difficulty is remarkably reduced, the time is shortened, the cost is reduced, and children 'animations generally require high-frequency animation updating and high-quality visual effect to attract and maintain the interest of small audiences. The AI technology is integrated for action capture and emotion recognition, so that expressions and actions of roles can be captured and optimized in real time, and the roles can be expressed more naturally and vividly.

The invention discloses a glucose response type insulin delivery system as well as a preparation method and application thereof, and belongs to the technical field of biological materials. The glucose response type insulin delivery system provided by the invention comprises a delivery carrier and a bioactive component encapsulated in the carrier, the delivery carrier is a metal polyphenol network formed by carrying out coordination reaction on epigallocatechin gallate and metal ions; the bioactive components comprise glucose oxidase, catalase and insulin. The glucose response type insulin delivery system provided by the invention can adjust the release of insulin according to the concentration of glucose in the surrounding environment, so that the blood glucose is maintained at a normal level.

The invention relates to a universal nano biological vesicle preparation method. The preparation method comprises the following steps: carrying out crude extraction on cells from bacteria, fungi, plants or animals to obtain a crude extracting solution; the crude extracting solution is placed in a low-temperature and high-pressure homogenizer to be subjected to low-temperature and high-pressure homogenizing treatment, then the nano vesicles are obtained, the low-temperature and high-pressure homogenizer comprises a high-pressure cavity, a homogenizing valve, a working cavity, a conveying system and a temperature control system, a slit is formed in the homogenizing valve, and the crude extracting solution located in the high-pressure cavity enters the working cavity through the slit of the homogenizing valve, the pressure intensity of the high-pressure cavity is 300-3000 bar, and the working temperature of the high-pressure homogenizer is 0-10 DEG C. The activation energy is reduced by controlling high-pressure and low-temperature environments, so that the original cell membrane structure is broken, the cell wall structure is destroyed, and phospholipid bimolecules are driven to aggregate and self-assemble to form the vesicles. For biological membranes derived from bacteria, fungi, plants and animals, the vesicles can be prepared by the preparation method disclosed by the invention, and the method has universality.

The invention relates to the technical field of batteries, in particular to a silicon-carbon negative electrode material and a preparation method and application thereof. The silicon-carbon negative electrode material comprises a carbon substrate, nanometer silicon particles and doping elements, the nanometer silicon particles are uniformly embedded in the carbon substrate, the doping elements are doped in the carbon substrate, and the doping elements comprise fluorine elements and phosphorus elements. The silicon-carbon negative electrode material disclosed by the invention has good uniformity, the nano silicon particles are uniformly embedded in the spherical carbon matrix, and the carbon matrix can effectively relieve volume expansion of the silicon particles in a lithium intercalation / deintercalation process, so that the cycle performance of a battery is improved; and fluorine and phosphorus elements are doped in the carbon matrix, so that the electron / ion conductivity of the silicon-carbon negative electrode material can be improved, and the rate capability of the battery is improved.

The invention relates to a silicon-carbon composite material, a preparation method thereof and a lithium ion battery. The preparation method comprises the following steps: adding porous carbon into a fluidized bed, heating and introducing alkaline mixed gas to obtain amino porous carbon; transferring the amino porous carbon into fluidized bed equipment, vacuumizing, heating, and introducing hydroxyl silane gas for nano silicon deposition; after deposition, introducing ultraviolet light for polymerization and oxidation to obtain a modified silicon-carbon precursor material; transferring the modified silicon-carbon precursor material into a tubular furnace, introducing inert gas to discharge air in the tube, and performing first carbonization to obtain a silicon-carbon material; and adding the resin into an organic solvent, adding the fast ion conductor and the silicon carbon material to be uniformly dispersed, performing spray drying, and performing secondary carbonization to obtain the fast ion conductor coated silicon carbon composite material. The preparation method provided by the invention is simple and efficient, and the prepared silicon-carbon composite material can improve the fast charging performance and is suitable for a negative electrode material of a high-energy-density lithium ion battery.

The invention relates to the technical field of CO2 miscible-phase oil displacement, in particular to an ester gas-soluble surfactant for reducing CO2 miscible-phase pressure and a preparation method and application thereof.The ester gas-soluble surfactant is prepared from polyglycerol fatty acid ester and acetic anhydride, the ester gas-soluble surfactant contains unsaturated hydrocarbon chains with the carbon atom number being 8-18, and the unsaturated hydrocarbon chains are connected with the polyglycerol fatty acid ester. N is the polymerization degree of the polyglycerol fatty acid ester, n is any integer in the range of 2-22, and the ester gas-soluble surfactant has the solubility of 0.5 wt%-1.5 wt% in supercritical carbon dioxide. When the ester gas-soluble surfactant provided by the invention is used, other auxiliaries do not need to be added, and a good mixing reduction effect can be achieved aiming at different crude oils by adjusting the number of carbon dioxide-philic groups and the length of oleophylic unsaturated hydrocarbon chains.

The invention discloses a triazine biphenyl compound, a composition, a cured product as well as a preparation method and application of the triazine biphenyl compound, the composition and the cured product. The compound is phenolic resin with a triazine biphenyl structure obtained through condensation polymerization of p-cyanobiphenol; the phenolic resin respectively reacts with an epichlorohydrin compound and an acyl chloride compound to obtain epoxy resin and active ester with a triazine biphenyl structure, and the epoxy resin and the active ester can be self-cured or cured under the action of an imidazole accelerator; in the preparation process, triazine ring (containing nitrogen) is introduced as a node, trifunctional epoxy resin with a rigid aromatic structure as an arm and an active ester curing agent (the same skeleton) are prepared into a thermosetting cross-linked network by adopting a non-polar cross-linking scheme, and a three-dimensional network intrinsic microporous structure is formed through in-situ cross-linking regulation and control of a rigid long-arm branched unit. Further, the bottlenecks of low dielectric property, high temperature resistance, flame retardance and the like are broken through, and the cured material has the characteristics of excellent flame retardance, high temperature resistance and low dielectric property.

The invention belongs to the technical field of biomedical materials, and particularly relates to a hydrogel wound dressing and a preparation method and application thereof. The hydrogel wound dressing disclosed by the invention can be matched with a sound-sensitive agent by utilizing the temperature-sensitive shrinkage performance of the temperature-sensitive compound monomer, and shows ultrasonic thermal response shrinkage performance, specifically, the hydrogel wound dressing can be rapidly heated and remarkably shrunk under the ultrasonic action to promote wound shrinkage, so that wound healing is accelerated. The obvious potential is embodied in the aspects of promoting the repair of the wound infected by the drug-resistant bacteria and the repair of the wound infected by the drug-resistant bacteria and diabetes mellitus. When the prepared hydrogel wound dressing is used, the contraction degree of the hydrogel wound dressing can be controlled by adjusting the ultrasonic time in the treatment process, and protection and treatment effects on drug-resistant bacteria wounds are achieved in a programmed mode. Meanwhile, the fixing structure of the hydrogel can anchor added drugs such as a sound-sensitive agent and the like, and the action time of the drugs is prolonged.

The invention provides a soybean composite growth-promoting microbial coating agent and a coating method thereof, bacterial strains with a soybean growth-promoting effect are selected and compounded into a mixed bacterial agent according to a certain variety and proportion, biochar is innovatively used for seed coating, and the composite coating agent comprises an adsorbent, a nutritional agent, a binder and the bacterial composition. According to the invention, strains with a plant growth promoting effect are selected and compounded into a mixed microbial inoculum according to a certain variety and proportion, and the biochar is innovatively used for seed coating, so that plant growth is promoted by using the coating agent, and the abiotic stress resistance is improved. The coating agent is efficient, low in toxicity, safe and reliable, the preparation method is simple and feasible, and the coating agent has important practical value.

The invention belongs to the technical field of energy and petrochemical engineering catalysts, and particularly discloses a preparation method and application of a copper-zinc-aluminum spinel solid solution catalyst. The Cu-Zn-Al spinel solid solution catalyst is prepared by ball-milling copper, zinc and aluminum precursors and then roasting at 800-1200 DEG C in the air atmosphere, and the preparation method is simple, does not need a large amount of solvent, is less in wastewater and avoids the influence of other impurity ions. The Cu-Zn-Al spinel solid solution catalyst prepared by the invention is used for methanol reforming hydrogen production reaction, the methanol conversion rate is as high as 95.5%, the H2 selectivity in the product is 74.8%, and the CO selectivity is 0.76%, so that the Cu-Zn-Al spinel solid solution catalyst has high activity, high selectivity and good reaction stability.

The invention relates to a bimetallic porphyrin / GO / TiO2 nanotube composite photocatalytic material and application thereof. The bimetallic porphyrin / GO / TiO2 nanotube composite photocatalytic material is prepared by the following preparation method: preparing Ni-CoTCPP; the preparation method comprises the following steps: preparing a bimetallic porphyrin solution, immersing TiO2NTs into the porphyrin solution, stirring, taking out a titanium foil, and drying at room temperature to prepare Ni-CoTCPP / TiO2NTs; and soaking the Ni-CoTCPP / TiO2NTs into the suspension of GO, stirring, taking out the titanium foil, and drying at room temperature to obtain the Ni-CoTCPP / GO / TiO2NTs. The bimetallic porphyrin / GO / TiO2NTs ternary composite material is constructed through the action of porphyrin in photosynthesis, various targets in the field of photocatalytic CO2 reduction are achieved, and selectivity of products can be controlled while photocatalytic activity is improved.

According to the anion exchange polymer, the anion exchange membrane, the method and the device provided by the invention, a cationic group with high alkali resistance is introduced into a polyaryl polymer structure, and meanwhile, a cationic side chain is introduced, so that the ionic conductivity and the alkali-resistant stability of the anion exchange polymer are synchronously improved; the anion exchange membrane prepared from the anion exchange polymer has the advantages of excellent ionic conductivity and alkali-resistant stability, can stably operate for a long time in a high pH value environment, and is not easy to degrade or reduce the performance. Therefore, the anion exchange membrane has remarkable advantages in electrochemical processes such as water electrolysis hydrogen production, so that the anion exchange membrane has a wide application prospect in electrochemical devices such as a water electrolysis reactor and the like.

The invention belongs to the technical field of lithium ion batteries, and discloses a multi-layer composite solid electrolyte and a preparation method and application thereof, the preparation method comprises the following steps: mixing a lithium salt A, a polymer and a solvent to obtain slurry A, and drying the slurry A to obtain a negative electrode side solid electrolyte; mixing a lithium salt B, a polymer, MOF and a solvent to obtain slurry B, coating a negative electrode side solid electrolyte membrane with the slurry B, and drying to obtain an intermediate product; and mixing a lithium salt C, a polymer and a solvent to obtain slurry C, coating the intermediate product with the slurry C, and drying to obtain the multi-layer composite solid electrolyte, the lithium salt A is prepared by mixing any one of LiBOB and LiDFOB with LIFSI; and the lithium salt C is prepared by mixing any one of LiDFP and LiNO3 with LIFSI. The prepared multi-layer composite solid electrolyte can improve the cycling stability and the voltage window of the battery.

The invention relates to the technical field of biology, and particularly provides preparation and application of a dsMpC002-coated ZIF-8 nano complex. According to the invention, a green peach aphid effector dsMpC002 is taken as a target, a ZIF-8 delivery system of the green peach aphid effector dsMpC002 with a stable superexcellent target is constructed, and a dsMpC002-ZIF-8 nano-composite is prepared and obtained. By observing and analyzing the MpC002 gene expression quantity, the death rate and the single female farrowing quantity of the green peach aphid after the pepper variety DYJ sprayed with the dsMpC002-coated ZIF-8 nano-complex with different concentrations is fed, the control effect of the dsMpC002-coated ZIF-8 nano-complex on the green peach aphid is determined. And a new target technology and a new idea are provided for innovating an aphid control method.

The invention provides a preparation method of an MXene (at) BN heterostructure heat-conducting filler and an epoxy composite material thereof, boron nitride and MXene nanosheets are respectively modified by cation and anion modifiers, and the heterostructure filler is constructed by electrostatic self-assembly. When the filler is applied to epoxy resin, the prepared MXene-coated BN / epoxy composite material shows excellent heat conductivity and electrical insulating property. The method provided by the invention is simple and efficient in preparation process, is suitable for large-scale industrial production, can realize the balance of high thermal conductivity and excellent electrical insulation property under low filler load, and provides an innovative efficient heat dissipation solution for the field of electronic packaging.

The invention discloses low-dielectric fluorine-containing silane modified polyimide and an application thereof. The structural formula of the low-dielectric fluorine-containing silane modified polyimide is # imgabs0 #; r1 is a fluorine-containing silane group; r2 is an aromatic anhydride group; aR is an aromatic group; and Ar'and Ar ''are one of phenoxy benzene groups or fluorine-containing biphenyl groups. The preparation method comprises the following steps: dissolving a hydroxyfluorene diamine compound, ether-containing polyamine and fluorine-containing polyamine in a polar organic solvent in an inert atmosphere, and then adding dianhydride and an end-capping reagent for condensation polymerization to obtain polyamide acid; the preparation method comprises the following steps: mixing polyamide acid, a water-carrying agent and fluorine-containing silane, and carrying out imidization reaction to obtain the low-dielectric fluorine-containing silane modified polyimide. The fluorine-containing silane polyimide prepared by the invention has a large-volume fluorenyl structure, flexible ether bonds, a silane structure and fluorine atoms with relatively high electronegativity, so that the prepared fluorine-containing silane polyimide has relatively low dielectric properties, and the processability of the polyimide and the solubility of the polyimide in various organic solvents are also improved.

The invention relates to the technical field of batteries, in particular to a positive electrode material and a preparation method and application thereof. The positive electrode material comprises a core layer and a shell layer coating the surface of the core layer, the core layer comprises a high-nickel multi-metal oxide and a doping element Q, and the Q comprises at least one of Al, B, Nb, La, Sr, Sb and Mo; the shell layer comprises a nickel-containing multi-metal oxide and a doping element M, the element M comprises the element Q and a doping element D, and the doping element D is selected from at least one of B, Sb, Nb, W, Zr, Ta and Mo; the element Q is different from the element D; the element Q is uniformly distributed in the core layer and the shell layer; the doping element D is distributed in a radial concentration decreasing manner from the surface to the interior of the shell layer, and the interior of the positive electrode material is of a radial structure. The positive electrode material provided by the invention has low 003 crystal face grain size and high microstrain, can realize structure optimization and core-shell concentration difference maintenance at the same time, and improves the electrochemical performance of the positive electrode material.

The invention discloses a nano-carbon supported ruthenium cluster nano-catalyst as well as a preparation method and application thereof. According to the present invention, the synthesis process of the catalyst is simple and easy to perform, the reaction process is controllable, the nanocarbon with characteristics of rich defects and large specific surface area is adopted as the carrier, the ruthenium cluster is loaded on the surface of the nanocarbon, and the nanometer catalyst with characteristics of high specific surface area and high atom utilization rate is synthesized. The catalyst can catalyze persulfate (PDS) to generate products with strong oxidation activity, namely sulfate free radicals (SO4.-), hydroxyl free radicals (. OH) and singlet oxygen (1O2), so that effective inactivation of bacteria is realized. In the invention, the reaction of activating the persulfate to disinfect by the catalyst is carried out at room temperature under neutral conditions, and in a mild reaction environment, the nanocarbon-loaded ruthenium cluster nanocatalyst shows good capability of catalyzing the persulfate to inactivate bacteria, and has huge potential in practical application of water disinfection.

The invention discloses a natural polysaccharide assisted MXene porous membrane electrode and a preparation method thereof, and relates to the technical field of electrodes. According to the technical scheme, hydrochloric acid and lithium fluoride are used for carrying out etching and intercalation on an MAX raw material, and MXene dispersion liquid is obtained; mixing the MXene dispersion liquid with a metal ion solution to obtain a metal ion doped MXene solution; mixing the metal ion doped MXene solution with a natural polysaccharide dispersion liquid to obtain a natural polysaccharide modified MXene dispersion liquid; mixing the natural polysaccharide modified MXene dispersion liquid with a template substance, performing vacuum filtration, and performing vacuum drying to obtain a flexible MXene film; and carrying out template substance removal treatment on the flexible MXene film to obtain the natural polysaccharide-assisted MXene porous film electrode. According to the invention, the stacking problem of the MXene material is solved, and the electrochemical performance of the natural polysaccharide-assisted MXene porous membrane electrode is obviously improved.

The invention relates to a hard carbon material and a preparation method thereof, a negative pole piece and a battery. The preparation method of the hard carbon material comprises the following steps: carrying out pre-oxidation treatment on a plastic precursor to obtain pre-oxidized plastic; adding the obtained pre-oxidized plastic into a mixed solution of deionized water and alcohol, then adding 2, 6-dipicolinic acid, and carrying out a cross-linking reaction to obtain a plastic-based resin carbon precursor; and carbonizing the obtained plastic-based resin carbon precursor at high temperature to obtain the hard carbon material. The hard carbon material prepared by using the preparation process of the hard carbon material provided by the invention is stable in structure, and shows good sodium storage capacity and excellent rate and cycle performance.

The invention discloses a tetravalent platinum autophagy inducer with a structure of a general formula I as well as a preparation method and application of the tetravalent platinum autophagy inducer. The compound disclosed by the invention has an induction effect on cell autophagy, and can be used for degrading immunosuppressive protein tenascin-C (Tenascinin-C) through autophagy so as to improve a tumor immunosuppressive microenvironment. The tetravalent platinum complex induces tumor cells to generate autophagic death through unique structural characteristics, promotes immune killer cells to infiltrate a tumor immune microenvironment, can be used for preparing novel chemical immunotherapy drugs with multiple anti-tumor mechanisms, and has broad application prospects. The problems that the traditional treatment effect is poor and a small molecule immunotherapeutic agent is lacked are solved. # imgabs0 #

The invention belongs to the technical field of composite materials, and particularly relates to a carbon fiber composite material for preventing low-temperature medium leakage and a preparation method and application thereof. The carbon fiber composite material comprises carbon fibers, a resin matrix, modified nano-hydroxyapatite and an anti-seepage film, the mass percentage content of the carbon fiber is 45-69%, the mass percentage content of the resin matrix is 26-37%, the mass percentage content of the impermeable film is 2-10%, and the balance is modified nano-hydroxyapatite; the modified nano-hydroxyapatite, the impermeable film and other raw materials are added into the formula of the carbon fiber composite material, and the impermeable performance of the carbon fiber composite material in a low-temperature medium is comprehensively improved through the modified nano-hydroxyapatite and the impermeable film. Experimental results show that the thickness of the carbon fiber composite material is smaller than 3 mm, and the leakage rate under 3 MPa is smaller than 10 <-5 > Pa.m < 3 > / s.

The invention belongs to the technical field of lithium ion batteries, and discloses a polycarbonate copolymer solid electrolyte with a sulfur-containing main chain and a preparation method thereof. The polycarbonate copolymer with the sulfur-containing main chain is obtained by catalyzing polymerization of carbon dioxide, epoxide and episulfide by using a cheap, easily available, simple and efficient nonmetal Lewis acid and an organic amine / organic ammonium salt / organic phosphorus bi-component catalytic system, and the copolymer has excellent mechanical properties, thermal stability and chemical stability. Uniformly mixing the copolymer, a lithium salt and a plasticizer in a solvent to obtain an electrolyte solution; and preparing a membrane from the electrolyte solution on a porous support material, and carrying out vacuum drying to obtain the solid electrolyte. The room-temperature ionic conductivity of the solid electrolyte is 3.4 * 10 <-7 >-7.2 * 10 <-4 > S / cm, and the solid electrolyte has an electrochemical oxidation window of 4.5 V-5. 5V. The solid electrolyte shows excellent cycle performance and interface stability when being used for the lithium ion battery, and can effectively inhibit the growth of negative electrode lithium dendrites.

The invention discloses a preparation method of visible-light-cured fibroin / sericin protein hydrogel, silk fibers containing different amounts of sericin are obtained by adjusting the concentration of a degumming reagent and the degumming time, the silk fibers are directly dissolved to prepare a fibroin / sericin protein composite aqueous solution by a one-step method, extra extraction of sericin or addition of sericin protein powder is not needed, and the preparation method is simple and convenient. The cost is reduced while the preparation process is greatly shortened; environment-friendly and nontoxic riboflavin (vitamin B2) is used as a photoinitiator, and crosslinking can be initiated under visible light without using ultraviolet light; the visible light curing fibroin / sericin hydrogel makes full use of respective performance advantages of silk fibroin and sericin in silk fibers, is safe in components, free of additional chemical cross-linking agents, good in light transmission, good in biocompatibility, high in elasticity, especially suitable for the field of biomedical materials, short in preparation process, short in time consumption and high in efficiency.

The invention relates to the field of MOF-based flexible thermoelectric materials, and discloses n-type MOF-based high-performance thermoelectric foam with ductility and a preparation method and application thereof, and the method comprises the following steps: dissolving 1, 3, 5-trimesic acid and copper acetate in a mixed solution of N, N-dimethylformamide, ethanol and deionized water to prepare a precursor solution; soaking foamed nickel in the precursor solution for hydrothermal reaction, then taking out, cleaning and drying to obtain a foamed nickel material with nickel-copper MOF uniformly grown on the surface; and soaking the foamed nickel material in a mixed solution of polyaniline and DMF (Dimethyl Formamide) so as to graft a conductive polymer on the surface and pore channels of the nickel-copper MOF, thereby obtaining the high-performance thermoelectric foam with ductility. The n-type MOF-based thermoelectric foam prepared by the invention has excellent ductility and thermoelectric performance, and also has the characteristics of metal plasticity, efficient thermoelectric performance and sensitivity to temperature change. The excellent thermoelectric performance and wide application scene of the material are far better than those of the currently reported n-type MOF-based thermoelectric material.