1643 results about "Zinc salts" patented technology

The invention provides a method for enhancing interface bonding and corrosion resistance of a basalt fiber composite material, and belongs to the field of fiber surface modification chemical methods. The method is realized through the following steps: firstly, treating basalt fibers by utilizing an organic solvent through high-temperature reflux to prepare desized basalt fibers; then, the desized basalt fibers are immersed in a dopamine solution to be subjected to auto-polymerization, and basalt fibers with a polydopamine coating are prepared; sequentially immersing the basalt fiber coated with the polydopamine into a zinc salt solution and a 2-methylimidazole solution, so as to prepare a ZIF-8 modified basalt fiber; and finally, mixing the ZIF-8 modified basalt fiber with resin through electrostatic coating, and molding by adopting a segmented hot-pressing method to obtain the basalt fiber composite material. According to the method, a composite structure formed by the synergistic effect of a dopamine self-polymerization layer and ZIF-8 is introduced into the surface of the basalt fiber, so that the interface bonding force between the fiber and resin and the corrosion resistance of the composite material are greatly enhanced.

The invention relates to the technical field of adsorbents, and particularly discloses an aluminum oxide type adsorbent and a preparation method thereof.The preparation method comprises the following steps that lanthanum salt, cerium salt and a polyethylene glycol aqueous solution are mixed to be uniform, then the mixture is mixed with gamma-Al2O3 to be uniform, pH is adjusted, standing is conducted, solid-liquid separation is conducted, drying and roasting are conducted, and a double-doped carrier is obtained; dispersing the double-doped carrier in a mixed solution containing 2-methylimidazole, ferric salt and zinc salt, adjusting the pH value, carrying out heating reaction, solid-liquid separation and drying in an inert atmosphere, grinding to obtain powder, and carrying out molding treatment on the powder to obtain a composite carrier; uniformly mixing the Ag modified molecular sieve with silica sol, coating the surface of the composite carrier with the mixture, and drying to obtain an adsorbent precursor; dipping an adsorbent precursor in the dispersion liquid, and after dipping, solid-liquid separation and drying, reactivating to obtain the aluminum oxide type adsorbent; the prepared adsorbent can synergistically and efficiently remove multiple impurities and is excellent in corrosion resistance.

The invention relates to the technical field of lithium-sulfur batteries, and discloses a sulfonyl ZIF-8 metal organic framework material, a lithium-sulfur battery diaphragm and a preparation method of the lithium-sulfur battery diaphragm. The preparation method of the sulfonyl ZIF-8 metal organic framework material comprises the following steps: dissolving a metal precursor and a mixed ligand in an organic solvent, and carrying out a coordination reaction under the action of organic alkali; solid is collected, washed and dried, and the sulfonic group ZIF-8 metal organic framework material is obtained. The metal precursor is soluble zinc salt; the mixed ligand comprises 2-methylimidazole and an imidazole derivative containing a sulfonic acid group. The sulfo group ZIF-8 metal organic framework material is prepared through a ligand doping strategy and is used for functional modification of the lithium-sulfur battery diaphragm; the shuttle behavior of lithium polysulfide (LiPS) can be effectively inhibited through the electrostatic repulsion effect of sulfonic acid groups and the synergistic effect of high-polarity adsorption sites; and the migration of Li < + > and the conversion efficiency of LiPS are remarkably promoted by an efficient ion transmission network, so that the cycle performance of the lithium-sulfur battery is improved.

The invention discloses a composite electrode material for a zinc-bromine flow battery and a preparation method and application thereof, and the preparation method comprises the following steps: S1, uniformly stirring a copper salt, a zinc salt, a sodium salt and distilled water at room temperature, aging in air, and then filtering, washing and drying to obtain a zinc-copper composite salt; s2, adding a polymer into an organic solvent under a stirring condition, and stirring under a water bath condition to obtain a spinning solution; then adding zinc-copper composite salt, stirring and then carrying out ultrasonic dispersion to obtain a composite spinning solution; s3, preparing the composite spinning solution into a precursor nanofiber material by utilizing high-voltage electrostatic spinning; and S4, carrying out pre-oxidation and carbonization treatment on the precursor nanofiber material in an atmosphere furnace, and cleaning and drying the carbonized material to obtain the composite electrode material for the zinc-bromine flow battery. According to the invention, the problems of low surface activity of bromine electrode reaction on an electrode material, unstable electro-catalytic performance, bromine permeation and the like in the zinc-bromine flow battery can be solved.

The invention belongs to the technical field of pharmaceutical chemical processes, and particularly relates to a preparation method of a penem antibiotic intermediate 4-BMA, which comprises the following steps: adding Zn powder, chlorosilane, aliphatic tertiary amine, zinc salt and 4-AA in a formula (I) into THF (tetrahydrofuran), uniformly stirring, dropwise adding a THF solution of alpha-haloamide with an induction group in a formula (II) for reaction, filtering the reaction solution, removing the zinc powder, and drying to obtain the penem antibiotic intermediate 4-BMA. Extracting the filtrate to obtain a THF phase, washing with an aqueous solution of potassium oxalate, and recovering THF to obtain a formula (III); and carrying out oxidative hydrolysis, sulfur dioxide quenching, sulfur dioxide acid regulation crystallization and recrystallization on the formula (III) to obtain the intermediate 4-BMA. According to the preparation method disclosed by the invention, a zinc salt is used as a catalyst during preparation of the formula (III), potassium oxalate is used for removing residual Zn (II) in a THF phase, SO2 is used for quenching hydrogen peroxide and acid regulation and crystallization of 4-BMA, the oxygenolysis problem of 4-BMA is solved, and the preparation method has the characteristics of greenness, safety and high efficiency, is strong in product competitive advantage and is suitable for industrial production.

The invention discloses a high-concentration salt poly-zwitterionic gel electrolyte, a zinc ion battery and a preparation method. Belongs to the technical field of zinc ion batteries. The preparation method comprises the following steps: adding high-concentration zinc salt into a monomer mixed solution obtained by mixing an aqueous solution of an anionic monomer, an aqueous solution of a cationic monomer and an aqueous solution of an acrylamide monomer, and performing ultrasonic treatment to obtain a monomer-salt mixed solution; adding a free radical polymerization initiator, a cross-linking agent and a catalyst, and adjusting the pH value to 4.5-5.5 to obtain a pre-polymerization solution; and heating and polymerizing the pre-polymerized solution at 35-45 DEG C to obtain the high-concentration salt poly-zwitterionic gel electrolyte. The electrolyte provided by the invention can overcome the problem of liquid leakage, inhibit the growth of zinc dendrites and the occurrence of side reactions, solve the problem of reduction of ionic conductivity, and obtain a zinc ion battery with excellent conductivity and stability.

The invention relates to an aqueous zinc-iodine battery electrolyte containing a phenolic additive, and a preparation method and application thereof, and belongs to the technical field of aqueous zinc-iodine batteries. The invention aims to solve the technical problems of serious multi-iodide shuttling and negative electrode by-products of the existing aqueous zinc-iodine battery. The preparation method of the aqueous zinc-iodine battery electrolyte containing the phenolic additive comprises the following steps: dissolving zinc salt and the phenolic additive in deionized water, and fully stirring and mixing to obtain the aqueous zinc-iodine battery electrolyte containing the phenolic additive. The phenolic additive used in the application can accelerate conversion from I3-to I-, accelerate iodine conversion reaction kinetics and reduce generation of polyiodide, so that shuttling of the polyiodide is effectively inhibited, a phenolic additive monomer is adsorbed on the surface of a zinc negative electrode, contact between Zn < 2 + > and water molecules is reduced, and generation of zinc negative electrode by-products is inhibited; the zinc-iodine battery also has the advantages of being easy to manufacture and low in cost.

The invention relates to the technical field of ORR catalyst preparation, in particular to an iron-nitrogen-carbon catalyst and a preparation method and application thereof. The invention provides a preparation method of an iron-nitrogen-carbon catalyst, which is characterized by comprising the following steps: dispersing zinc salt and ferrite in methanol to obtain a mixed solution A; the preparation method comprises the following steps: dispersing 2-methylimidazole and 1, 4-terephthalonitrile in methanol under a heating condition to obtain a mixed solution B; stirring and mixing the mixed solution A and the mixed solution B to obtain precursor powder, and calcining the precursor powder in an inert atmosphere to obtain the iron-nitrogen-carbon catalyst with the hierarchical porous structure. The invention provides a novel preparation method for preparing the iron-nitrogen-carbon catalyst with the hierarchical pore structure, and the iron-nitrogen-carbon catalyst with the hierarchical pore structure is prepared by introducing a 1, 4-terephthalonitrile molecular template.

The invention provides a method for preparing ultra-small molecular zinc hyaluronate, and relates to the field of hyaluronate. The method comprises the following steps: carrying out enzymolysis on macromolecular sodium hyaluronate by using leech hyaluronidase to obtain ultra-small molecular sodium hyaluronate; the method comprises the following steps: adsorbing ultra-small molecular sodium hyaluronate by using anion exchange resin, eluting by using a zinc salt solution, and reacting the obtained eluent to obtain ultra-small molecular zinc hyaluronate; the average molecular weight of the ultra-small molecular sodium hyaluronate is 600 Da to 1000 Da. The whole process is simple, the obtained ultra-small molecular zinc hyaluronate is high in zinc content, free of sodium ion residues and high in preparation yield, an organic solvent is not needed in the whole production process, and the method is suitable for industrial production.

The invention discloses a high-modulus leather / eutectic gel composite electrolyte and a preparation method and application thereof, and belongs to the technical field of energy storage. The preparation method comprises the following steps: 1) preparing a eutectic gel solution containing polyvinyl alcohol, zinc salt, small molecular polyol and water; 2) carrying out vacuum impregnation to obtain leather fibers containing a eutectic gel solution; and (3) obtaining the leather / eutectic gel composite electrolyte with the imitated reinforcing steel bar-concrete structure through freeze-thaw circulation.The composite electrolyte effectively solves the problem that an existing gel electrolyte is low in modulus and difficult to effectively deal with extreme mechanical deformation, and the cycle life of the water-based zinc ion battery is remarkably prolonged.

The invention belongs to the technical field of functional materials, and provides MOF-5 and preparation and application thereof, and a polymer self-lubricating composite material and preparation and application thereof. The preparation method comprises the following steps: mixing zinc salt, terephthalic acid, an end-capping reagent (polyvinyl pyrrolidone or polyvinyl alcohol), a weak base (triethylamine or sodium acetate) and a solvent, and carrying out ultrasonic treatment. The end-capping reagent and the weak base are added, so that the microstructure of the MOF-5 is lamellar, and the specificity of the crystal face is exposed, and when the MOF-5 is used as a functional filler to be applied to the self-lubricating polymer, the tribological performance can be improved. The MOF-5 mainly provides a reinforcing effect similar to that of crushed carbon fibers, and in the frictional wear process of the polymer self-lubricating composite material and a metal pair, the MOF-5 mainly serves as a bearing phase to bear main loads and makes contact with the metal pair to form a uniform and continuous transfer film on the surface of the metal pair, so that the metal pair is protected against abrasion. The tribological property of the polymer self-lubricating composite material is improved.

The invention belongs to the technical field of electrochemical energy storage, and particularly relates to a low-temperature aqueous electrolyte for anchoring I < + > ions based on a double-coordination structure and a low-temperature four-electron aqueous zinc-iodine battery. The low-temperature aqueous electrolyte is a mixed solution of a zinc salt, an electrolyte additive and water, and the low-temperature aqueous electrolyte comprises 2-5 mol / L of the zinc salt and 0.3-0.6 mol / L of the electrolyte additive; the zinc salt is zinc perchlorate or zinc tetrafluoroborate. The low-temperature four-electron aqueous zinc-iodine battery comprises the low-temperature aqueous electrolyte. Compared with the prior art, the invention at least has the following beneficial effects: (1) the corrosion risk caused by chloride ion concentration is reduced; (2) efficient four-electron iodine positive electrode reaction is realized; and (3) obtaining the low-temperature four-electron aqueous zinc-iodine battery.

The present invention relates to a crop nutrition and fortifying composition comprising: i. Elemental sulfur; ii. One or more water insoluble or water soluble magnesium salts or derivatives or mixtures thereof; iii. One or more water-insoluble or water-soluble potash fertilizers or salts or derivatives or mixtures thereof; iv. One or more water insoluble or water soluble iron salts or derivatives or mixtures thereof; v. One or more water insoluble or water soluble zinc salts or derivatives or mixtures thereof; vi. One or more water-insoluble or water-soluble boron salts or derivatives or mixtures thereof; vii. At least one trace element selected from the group consisting of water-insoluble or water-soluble vanadium salts or derivatives or mixtures thereof and water-insoluble or water-soluble selenium salts or derivatives or mixtures thereof; and viii. One or more excipients wherein the composition comprises microparticles having a size in the range of 0.1 to 50 microns, and wherein the total content of the water-soluble salts, derivatives or mixtures in the composition does not exceed 80% of the total weight of the composition. The invention also relates to a method for preparing the crop nutrition and fortifying composition and a method for treating a plant, a seed, a crop, plant propagation material, a locus, parts thereof or soil with the crop nutrition and fortifying composition.

The invention provides an asphalt-based hard carbon negative electrode material as well as a preparation method and application thereof, belongs to the technical field of battery materials, and is used for solving the technical problems that a template is non-uniformly distributed in a carbon source and the size is difficult to control in hard carbon preparation. The preparation method of the asphalt-based hard carbon negative electrode material comprises the following steps: mixing asphalt and organic zinc salt, and then carrying out heat treatment to obtain high-softening-point asphalt; and pre-oxidizing and carbonizing the high-softening-point asphalt to obtain the asphalt-based hard carbon negative electrode material. Organic zinc salt and asphalt form a metal template in situ at a high temperature, the metal template can be uniformly distributed in the asphalt, meanwhile, the particle size of the template is controlled through process change, and the prepared asphalt-based hard carbon negative electrode material has high reversible specific capacity, high initial coulombic efficiency and good rate capability.

The invention discloses a preparation method and application of a bio-based zinc adenine salt environment-friendly PVC heat stabilizer, and belongs to the field of fine chemical synthesis and plastic additive application. The nitrogen-containing organic metal heat stabilizer adenine zinc complex is prepared by taking adenine and zinc acetate as main raw materials through a one-step method. The method is simple and environment-friendly in preparation process, easily available in raw materials and suitable for industrial production. The prepared heat stabilizer zinc adenine is used as a heat stabilizer, can effectively absorb hydrogen chloride generated by PVC thermal decomposition, and can replace allyl chlorine atoms, so that the heat stability of a PVC product is improved, PVC has more excellent heat stability, and the heat stabilizer is expected to replace a traditional commercially available heat stabilizer.

The invention discloses an IRMOF-1-NH2 / SBS composite modifier as well as a preparation method and application thereof, and belongs to the technical field of asphalt processing. The composite modifier is prepared from the following raw materials in percentage by mass: 28 percent to 35 percent of IRMOF-1-NH2, 53 percent to 61 percent of SBS (Styrene Butadiene Styrene), 0.2 percent to 0.4 percent of an accelerant and 10.6 percent to 14.6 percent of a compatilizer; the preparation method of the IRMOF-1-NH2 comprises the following steps: S1, adding soluble zinc salt and 2-aminoterephthalic acid into a solvent, carrying out ultrasonic treatment, reacting at 120-150 DEG C for 12-24 hours, and separating and washing to obtain a solid product; and S2, heating the solid product obtained in the step S1 at the temperature of 100-150 DEG C for 10-20 hours to obtain the IRMOF-1-NH2 crystal. The compound modifier disclosed by the invention can be used for efficiently storing aromatics, so that the effect of inhibiting the aromatics from being gelatinized is achieved, and the anti-aging performance of asphalt is remarkably improved.

The invention relates to the technical field of coating preparation, and discloses a high-adhesion quick-drying inorganic zinc silicate shop primer and a preparation method thereof.The high-adhesion quick-drying inorganic zinc silicate shop primer is prepared from modified zinc powder, modified graphite powder, a sodium silicate solution, alpha-phase nanometer AlO, a quick-drying agent, an adhesion promoter, heat-resistant filler, a dispersing agent, a defoaming agent and a diluting solvent; the quick-drying agent is prepared by compounding zinc naphthenate, EDTA and titanium isopropylate according to the mass ratio of 1: (0.2-0.3): (0.4-0.6), the quick-drying agent accelerates the reaction by catalyzing hydrolysis of silicate through zinc salt, chelating of EDTA and metal ions, titanium isopropylate provides titanium ions to synergistically form a film and improve the quick-drying efficiency, the adhesion promoter is prepared by compounding KH-560 and E-44 epoxy resin according to the mass ratio of 3: 1, and the adhesion promoter is prepared by compounding epoxy resin and epoxy resin. The adhesion promoter enhances interface mechanical occlusion and adhesion through silane bonding base materials and epoxy resin, other raw materials are matched with the adhesion promoter to accelerate the drying speed of the primer, and a coating coated with the primer is not prone to stripping and peeling. The application has the effects of improving the adhesive force and drying speed of the inorganic zinc silicate shop primer.

The invention provides a calcium-zinc stabilizer which comprises calcium salt, zinc salt and nanoparticles, and the content of the nanoparticles is 10-40wt%. The calcium-zinc stabilizer provided by the invention is applied to a composite material containing a PVC (Polyvinyl Chloride) base material, especially to other polymer base materials with poorer compatibility with the PVC base material; by adding the calcium-zinc stabilizer into the PVC base material, the mechanical strength performance of the prepared composite material, such as a PVC / PLA composite material, can be remarkably improved.

The invention relates to the technical field of new energy materials, in particular to a metal oxide heterojunction catalyst and a preparation method and application thereof in hydrogen peroxide production. The preparation method comprises the following steps: taking soluble zinc salt and urea as raw materials, carrying out hydrothermal reaction to obtain zinc oxide, then taking soluble nickel salt and zinc oxide as raw materials, carrying out coprecipitation reaction under the action of ammonium bicarbonate, and calcining in air to obtain the metal oxide heterojunction catalyst. The preparation steps are simple and convenient, the product is prepared in the air atmosphere, in the obtained metal oxide heterojunction catalyst, the surfaces of the zinc oxide microspheres are uniformly coated with the nickel oxide nanosheets, the specific surface area is large, the number of active sites is large, the nickel oxide nanosheets and the zinc oxide microspheres form a heterojunction structure, and the metal oxide heterojunction catalyst has good catalytic activity. The defects of a catalyst for producing hydrogen peroxide through electro-catalysis water oxidation and a preparation method in the prior art are overcome.

The invention discloses a pharmaceutical composition for promoting aTreg cell differentiation and application thereof, and relates to the field of biological medicine, and the pharmaceutical composition comprises zinc salt, a basic cell culture medium, fetal calf serum, antibiotic, L-glutamine and a pH buffer agent. According to the application, the basic cell culture medium is used for providing basic nutrition required by cell growth for lymphocytes, the fetal calf serum is used for providing growth factors, hormones, adhesion proteins and nutrient substances required by cell growth for the lymphocytes, and the antibiotics are used for preventing bacterial infection; l-glutamine provides key amino acid for cell energy metabolism and participates in synthesis of protein and nucleic acid, zinc salt provides zinc ions, and under the comprehensive action, the proportion of Treg cells and aTreg cells differentiated from lymphocytes in peripheral blood mononuclear cells is increased.

The invention belongs to the technical field of hot melt adhesives, and discloses a polyurethane hot melt adhesive as well as a preparation method and application thereof. The polyurethane hot melt adhesive is prepared from the following raw materials: polyester polyol, polyether polyol, fluorine-containing dihydric alcohol, isocyanate, a chain extender, a catalyst and a modified montmorillonite antibacterial filler, the preparation method of the modified montmorillonite antibacterial filler comprises the following steps: modifying montmorillonite through sulfur-containing amino acid, increasing the interlayer spacing of the montmorillonite through an intercalator, entering the interlayer spacing of the montmorillonite through a metal organic framework synthesized by imidazole or an imidazole derivative and zinc salt, and carrying out surface modification to obtain the modified montmorillonite antibacterial filler. A silver-ammonia solution is treated by a reducing agent, so that the nano-silver is loaded on the montmorillonite and in the surface, the skeleton and the pores of the MOFs material. The polyurethane hot melt adhesive disclosed by the invention not only has high peel strength, but also has excellent waterproofness and lasting antibacterial property.

The invention relates to a composite hydroxypropyl methylcellulose skeleton sustained-release material and a preparation method thereof, and belongs to the technical field of drug sustained release. The sustained-release material is prepared from 70 to 90 parts of hydroxypropyl methylcellulose (HPMC), 10 to 20 parts of sodium alginate, 8 to 15 parts of chitosan, 0.1 to 0.2 part of Omega-3 fatty acid, 0.05 to 0.06 part of vitamin D, 2.5 to 5 parts of soluble calcium salt-zinc salt composite cross-linking agent, 0.5 to 1.5 parts of hydrolyzable cross-linking agent, 3 to 10 parts of enzyme sensitive auxiliary material, 1 to 5 parts of pore-foaming agent and 2 to 8 parts of hydrophobic blocking agent. The preparation method comprises the steps of raw material pretreatment and dry mixing, active component dispersion liquid preparation, wet granulation and primary cross-linking, secondary cross-linking and drying, vacuum drying and size stabilization, curing and packaging and the like. The sustained-release material provided by the invention has the advantages of controllable drug release rate, good mechanical strength and biodegradability, is suitable for sustained-release delivery of Omega-3 fatty acid, vitamin D and other active components, and can improve the bioavailability and stability of drugs.

The invention relates to the technical field of water-based energy storage batteries, in particular to a two-phase electrolyte for a water-based zinc ion battery and a preparation method of the two-phase electrolyte, and the two-phase electrolyte comprises soluble zinc salt, water and quaternary ammonium nitrate; the soluble zinc salt comprises one of zinc trifluoromethanesulfonate, zinc bis (trifluoromethylsulfonyl) imide, zinc acetate, zinc sulfate and zinc chloride, and the molar concentration of the soluble zinc salt is 1-5 mol / L; the quaternary ammonium nitrate is one or more than two of tetramethylammonium nitrate, tetraethyl ammonium nitrate, tetrabutyl ammonium nitrate, hexadecyl trimethyl ammonium nitrate and octadecyl trimethyl ammonium nitrate, and the molar concentration of the quaternary ammonium nitrate is 1-3 mol / L. The preparation method is simple, convenient and efficient, the reversibility of the zinc anode is optimized, the method is crucial for promoting the design of a practical water-based zinc ion battery, and the application of the zinc-based battery in the field of energy storage is further accelerated.

The invention discloses a phenyl ether bimetal organic framework antifouling material, a preparation method and application, and belongs to the technical field of marine antifouling materials. The preparation method comprises the following steps: 1) dissolving a carboxyl-containing phenyl ether organic ligand, a zinc salt and a lanthanide metal salt in a polar organic solvent, and carrying out a coordination reaction in a closed reaction container, so that zinc and lanthanide metal ions and carboxyl form coordinate bonds, and bridging the metal ions to form tetra-metal clusters; washing and drying crystals obtained after the reaction to obtain the phenyl ether-based bimetal organic framework; and 2) grinding the phenyl ether-based bimetal organic framework, uniformly dispersing the ground phenyl ether-based bimetal organic framework into the waterborne polyurethane resin, and fully mixing to obtain the phenyl ether-based bimetal organic framework antifouling material. The invention also provides an application of the antifouling material in marine antifouling and anticorrosion. The prepared antifouling material is low in synthesis cost and difficulty and stable in property, and has a remarkable inhibition effect on biological sedimentation of diatom, barnacle and the like.

The invention provides an Auricularia auricula polysaccharide, its application and preparation method thereof, which belong to the technical field of improving polysaccharide. After being degreased, the Auricularia auricula is subjected to preliminary enzymolysis under the effect of helicase, is further subjected to deep enzymolysis under the effect of complex enzyme through synergetic ultrasound-assisted degradation and extraction with H2O2, and is subjected to mixed fermentation by Lactobacillus bulgaricus, Streptococcus thermophilus and Bifidobacterium longum, the obtained fermented Auricularia auricula polysaccharide is subjected to a phosphorylation reaction under the effect of a phosphorylation reagent, and after further deproteinization and decolorization, the obtained fermented Auricularia auricula polysaccharide is chelated with zinc salt to obtain a polysaccharide-zinc compound, and the amount of the extracted Auricularia auricula polysaccharide is improved. The finished product of the invention has the effects of reducing blood sugar and blood fat, regulating total cholesterol and effectively improving HDL cholesterol.

The invention discloses a corrosion and scale inhibitor suitable for high-salinity water quality and a preparation method and application thereof.The corrosion and scale inhibitor comprises nano SiO2 at NH2, organic phosphonate, zinc salt, polycarboxylic acid and nano SiO2, a corrosion inhibition component is composed of the nano SiO2 at NH2, the organic phosphonate and the zinc salt according to the mass ratio of (0.8-1.2): 0.5: (0.3-0.4), a scale inhibition component is composed of the polycarboxylic acid and the nano SiO2 according to the total solid content mass ratio of 3: 1, and the scale inhibition component is composed of the nano SiO2 at NH2, the organic phosphonate and the zinc salt. The polycarboxylic acid grafting rate in the scale inhibition component is greater than or equal to 80%, and the corrosion inhibition component and the scale inhibition component are compounded according to the ratio of 1: 1 to prepare a finished product agent; the preparation method comprises the following steps: preparing the corrosion inhibition component, adjusting the pH value to 3-4, preparing the scale inhibition component, and compounding the corrosion inhibition component and the scale inhibition component to prepare the finished product agent. According to the invention, nano SiO2 and NH2 are added to prepare a corrosion inhibition component, nano SiO2 is added to prepare a scale inhibition component, and the components are strictly mixed step by step, so that the components form a chemical and physical multi-synergistic corrosion and scale inhibition effect, and the finished agent has the characteristics of corrosion inhibition rate, CaCO3 resistance rate higher than 95%, MgSiO3 resistance rate higher than 80%, high-salt environment tolerance, high high-temperature stability, low biotoxicity and the like.

The invention belongs to the technical field of redox flow batteries, and particularly discloses a high-performance hierarchical pore carbon felt electrode for a flow battery and a preparation method of the high-performance hierarchical pore carbon felt electrode for the flow battery. Zinc salt or bismuth salt is dissolved in a solvent, and a precursor solution is obtained through stirring and ultrasonic treatment; dipping the pre-oxidized felt into the precursor solution, performing ultrasonic treatment, taking out and drying; and carbonizing the dried carbon felt at a high temperature in a protective atmosphere, treating with nitric acid, cleaning with deionized water, and drying to obtain the hierarchical porous carbon felt electrode with high activity and high specific surface area. The prepared high-performance hierarchical pore carbon felt electrode has a multi-scale pore structure and rich active sites, the specific surface area, the conductivity and the catalytic activity are remarkably improved, meanwhile, the hydrophilicity is optimized, and the electrolyte wettability is enhanced. The method is short in technological process, high in efficiency, low in cost and suitable for large-scale production and industrial application of the high-performance carbon felt electrode.

The invention provides a novel metal organic framework material reinforced carbon dioxide trapping solvent and a preparation method thereof, and relates to the field of gas adsorbents. Comprising the following steps: S1, dissolving nickel salt, cobalt salt and zinc salt in water to obtain a metal salt solution; s2, uniformly mixing 2, 5-dihydroxyterephthalic acid and N, N-dimethylformamide, then adding 1-methylimidazole and ethanol, and uniformly mixing to obtain a ligand solution; s3, mixing the metal salt solution with the ligand solution, adding the mixture into a microwave reactor for reaction, filtering and drying to obtain an organic framework material; and S4, dispersing the organic framework material in deionized water, then adding an organic amine aqueous solution and a silane coupling agent, uniformly stirring, then adding an imidazolium ionic liquid, and carrying out ultrasonic oscillation to obtain the composite material. The carbon dioxide trapping solvent takes a metal organic framework material as a carrier, and the metal organic framework material is functionally modified and is matched with imidazole ionic liquid, so that the adsorption efficiency and the stability of the trapping solvent can be improved.

The present invention relates to the technical field of ORR catalyst preparation, and in particular to an iron-nitrogen-carbon catalyst and its preparation method and application. The present invention provides a method for preparing an iron-nitrogen-carbon catalyst, characterized in that it comprises: dispersing a zinc salt and a ferrous salt in methanol to obtain a mixed solution A; under heating conditions, dispersing 2-methylimidazole and 1,4-terephthalonitrile in methanol to obtain a mixed solution B; stirring and mixing the mixed solution A and the mixed solution B to obtain a precursor powder, and calcining the precursor powder under an inert atmosphere to obtain an iron-nitrogen-carbon catalyst with a hierarchical porous structure. The present invention provides a new preparation method for preparing an iron-nitrogen-carbon catalyst with a hierarchical pore structure, which prepares the iron-nitrogen-carbon catalyst with a hierarchical pore structure by introducing a 1,4-terephthalonitrile molecular template.

The invention discloses a boron-containing copper-based three-dimensional metal organic framework material as well as a preparation method and application thereof, and belongs to the technical field of fine chemical engineering. The preparation method comprises the following steps: preparing Zn-based MBON from zinc salt, boric acid and imidazole through a hydrothermal method, and then completely replacing the zinc component with copper to obtain Cu-based MBON, namely the boron-containing copper-based three-dimensional metal organic framework material. The specific surface area of the material is large, and a three-dimensional nano flower-shaped unique structure is formed. The prepared material is used as a catalyst for furfural electro-hydrogenation and carbon dioxide reduction reaction, the diffusion efficiency of reactants (such as furfural and CO2) can be enhanced, rapid desorption of products (such as furfuryl alcohol and ethylene) can be promoted through the surface capillary action, meanwhile, generation of by-products caused by excessive reaction is inhibited, and the selectivity of target products is improved.