92results about "Zinc compounds" patented technology

Provided is an all-solid-state lithium batteries (ASSLBs), Li-based cathode materials and structures incorporated therein and to methods of producing said materials, structures and batteries.

The application discloses a sea urchin-shaped antibacterial piezoelectric copper-zinc oxide and a preparation method and application thereof, and belongs to the field of biological medical materials. The preparation of the copper-zinc oxide comprises the following steps: (1) weighing Cu 2+ and Zn 2+ containing compound raw materials, dissolving the raw materials in deionized water, and preparing a mixed solution after dispersion; (2) adding the mixed solution obtained in the step (1) into deionized water containing DMSO, stirring and uniformly mixing, and preparing a solution containing Cu 2+ and Zn 2+ ; (3) adding an alkali source into the solution obtained in the step (2), heating and reacting, centrifugally collecting a precipitate, and obtaining the copper-zinc oxide after washing. The copper-zinc particles are subjected to thermal hydrolysis under the action of the organic solvent DMSO under an alkaline condition, and the copper-zinc oxide with a sea urchin-shaped structure is generated; and the oxide exhibits excellent piezoelectric antibacterial performance under stirring at room temperature.

The invention belongs to the technical field of new materials and electronic information, and particularly relates to a transition metal doped ZnIn2S4 gas sensor as well as a preparation method and application thereof. The gas sensor comprises a substrate and a transition metal doped ZnIn2S4 nano array growing on the surface of the substrate in situ, the nano array is composed of a plurality of two-dimensional nano sheet layers, the two-dimensional nano sheet layers are arranged in a staggered stacking mode and extend at an included angle of + / -5 degrees relative to the normal direction of the surface of the substrate, and the transition metal doped ZnIn2S4 nano array is arranged on the surface of the substrate. And a network assembly with a three-dimensional flower-shaped topological structure is formed through physical or chemical connection. The preparation method is simple, the energy band structure of the material is effectively regulated and controlled, the forbidden band width is reduced, on the other hand, the specific surface area of the material is remarkably increased, and the pore size distribution is optimized. And the prepared gas sensor shows excellent gas selectivity to triethylamine, is high in response value and high in recovery speed, and is expected to be applied to the fields of environmental monitoring and food safety.

Thermally conductive particles contain at least a fired product obtained by firing an aluminum raw material, a zinc raw material, and an additional raw material other than the aluminum raw material and the zinc raw material. A content of the zinc raw material is in a range from 25 parts by mass to 70 parts by mass with respect to 100 parts by mass of the aluminum raw material. The additional raw material contains at least one selected from the group consisting of a boron compound, a tungsten compound, a titanium compound, a bismuth compound, and a fluorine compound, and a content of the additional raw material is in a range from 0.05 parts by mass to 20 parts by mass with respect to 100 parts by mass of the aluminum raw material. The thermally conductive particles satisfy predetermined conditions.

A metal oxide composition, a light-emitting device produced by using the metal oxide composition, an electronic apparatus including the light-emitting device, and an electronic device including the light-emitting device are disclosed. The metal oxide composition includes a metal oxide nanoparticle, a metal halide, and a solvent, wherein an amount of an organic material on the surface of the metal oxide nanoparticle is in a range of about 12 wt% to about 21 wt% based on the weight (e.g., based on 100 wt%) of the metal oxide nanoparticle, and an amount of the metal halide is greater than 0 wt% but not more than about 7.0 wt% based on the weight (e.g., based on 100 wt%) of the metal oxide nanoparticle.

The invention relates to a ZnAl-LDH-based material as well as a preparation method and application thereof in sludge treatment. The ZnAl-LDH-based material is prepared from a divalent metal salt solution and a trivalent metal salt solution through a coprecipitation method, divalent metal comprises Zn and Cu, and trivalent metal is Al; the molar weight ratio of the divalent metal to the trivalent metal is (1-3): 1, and the ratio of the molar weight of Cu to the total molar weight of the divalent metal is (0-0.5): 1. The ZnAl-LDH-based material is used for promoting the organic sulfide in the sludge to be converted into sulfoxide sulfur and sulfone sulfur. Compared with the prior art, a series of ZnAl-LDH-based materials with proper specific surface areas and pore volume structures are prepared, and low-valence organic sulfides in municipal sludge can be promoted to be directionally converted into sulfoxide sulfur and sulfone sulfur; the method has a wide application prospect in the field of improving the high-added-value utilization of organic sulfide-containing wastes such as municipal sludge.

The invention provides a halide electrolyte material and a preparation method thereof, a positive plate, a secondary battery, a battery assembly and electric equipment. The halide electrolyte material is doped with a fluorine element and a zinc element. The halide electrolyte material provided by the invention has good ionic conductivity and air stability.

The solid electrolyte material of the present disclosure consists of Li, M1, M2, and X, wherein M1 is at least two selected from the group consisting of Ca, Mg, and Zn; M2 is at least one selected from the group consisting of Y, Gd, and Sm; and X is at least one selected from the group consisting of F, Cl, Br, and I.

The invention discloses a zinc thiophosphate material with a yolk double-shell structure as well as a preparation method and application thereof, and relates to the technical field of sodium ion batteries. The preparation method comprises the following steps: firstly, preparing a ZIF-8 precursor template through a zinc source and solvothermal reaction of 2-methylimidazole, and then sequentially carrying out coating, template etching, synchronous carbonization and vulcanization treatment and phosphorus vulcanization treatment on the ZIF-8 precursor template to finally obtain the ZnPS3 / NC-C material with the yolk double-shell structure and excellent electrochemical performance. Compared with a traditional transition metal thiophosphate preparation process, the method is safer in process, and the yolk double-shell morphology of the metal phosphorus sulfide can be accurately regulated and controlled. Compared with pure zinc thiophosphate prepared by a traditional process, the prepared ZnPS3 / NC-C material with the yolk double-shell structure has the characteristics of hollow and porous characteristics, high specific surface area and structural stability, and shows relatively high first charge-discharge efficiency and excellent cycle stability when being used as a sodium-ion battery negative electrode material.

The invention provides a quenching crystallization reaction system for preparing layered composite metal hydroxides and a corresponding preparation method, a high-pressure cooling distributor is additionally arranged between a reaction kettle and a collecting tank, and the high-pressure cooling distributor comprises a cavity and a quenching device which are communicated with each other; and a low-temperature cooling medium enters the cavity from the quenching device, is in direct contact with the high-temperature reaction slurry and rapidly cools the high-temperature reaction slurry, so that the layered composite metal hydroxide with the surface defect active site can be obtained. According to the invention, a cooling liquid system consistent with hydrotalcite reaction slurry is adopted, construction of defect active sites is realized for hydrotalcite through a quenching type cooling mode under the condition of not introducing impurities, the product performance can be effectively improved, the equipment requirement is low, the process is simple, the cost is effectively reduced, and the method is suitable for industrial production. And meanwhile, the impurity ion introduction problem caused by acid-base solvent etching and the like is also avoided, the process cleanliness is guaranteed, and the method is very suitable for industrial implementation.

To provide a coating liquid for film formation that can form a metal oxide film with excellent flatness even on uneven surfaces and reliable heat resistance by chemical vapor deposition. [Solution] A coating solution for forming metal oxide films by chemical vapor deposition, wherein the coating solution is a one-component coating solution containing a β-diketone complex, an inorganic metal salt, and a solvent, or a multi-component coating solution comprising coating solution A containing a β-diketone complex and a solvent, and coating solution B containing an inorganic metal salt and a solvent, wherein the β-diketone complex and the inorganic metal salt are composed of metal atoms of period 3 to 6 and group 2 to 14.

The invention relates to a preparation method of zinc-aluminum spinel and zinc-aluminum spinel with a hollow structure. According to the preparation method, metal zinc powder and aluminum powder serve as raw materials, absolute ethyl alcohol is added, ultrasonic mixing is conducted, then suspension liquid is subjected to solid-liquid separation, roasting is conducted in the air atmosphere, and finally the zinc-aluminum spinel of the hollow structure is obtained. The preparation method is simple, efficient and easy to operate, and the obtained product is uniform in particle size, has a complete hollow structure and can adapt to various application scenes.

The invention discloses a preparation method of modified hydrotalcite lubricating oil with high dispersion performance, and relates to the technical field of lubricating oil, the method comprises the following steps: dropwise adding an alkali solution into a salt solution to obtain a suspension; aging and separating the suspension to obtain a reaction product; the reaction product is washed, dried, ground and sieved, and the ZnMgAl LDH nanosheet is obtained; the preparation method comprises the following steps: modifying a ZnMgAl LDH nanosheet to obtain modified hydrotalcite; and adding the modified hydrotalcite into the base oil to prepare the modified hydrotalcite lubricating oil. The calcium-magnesium-aluminum hydrotalcite is subjected to surface modification through the dispersing agent, on one hand, the compatibility of the hydrotalcite and the lubricating oil base oil is enhanced through the long-chain alkane structure of oleic acid, and the dispersion problem caused by hydrophilicity of the hydrotalcite is solved; on the other hand, by means of a hexagonal layered crystal structure of hydrotalcite, a low-shear-force lubricating film is formed on a friction interface, so that the lubricating performance of the lubricating oil is synergistically improved; in addition, the modified hydrotalcite has good thermal stability at the temperature of about 230 DEG C or below, and is suitable for high-temperature use scenes of the lubricating oil.

The application discloses a double-metal oxide composite catalyst and a preparation method and application thereof. The composite catalyst is prepared by taking a zinc source as a main precursor and taking a hydroxide of any one of Al, Sr, Ba, Ru, Ni and Ca as a secondary precursor. In the preparation, the two substances are uniformly mixed by adopting a physical ball-milling mixing method, and then the mixture is placed into a muffle furnace for sufficient calcination. The double-metal oxide composite catalyst is prepared by adopting the method. The double-metal oxide composite catalyst is applied to a reaction of preparing fluorine-containing olefins (HFOs) by removing HCl from hydrochlorofluoroalkanes (HCFCs) in a gas phase. The double-metal oxide composite catalyst has extremely high selectivity and stability. The catalytic selectivity is as high as 99%, and the catalytic conversion rate is higher than 85%. The double-metal oxide composite catalyst has the advantages of high conversion rate, high selectivity, good stability, low cost, simple operation and easy industrialization.

The invention belongs to the technical field of batteries, and discloses a preparation method of a zinc-nickel secondary battery negative electrode active material. The preparation method comprises the following steps: adding ZnO into a KOH solution of saturated ZnO, uniformly mixing, adding Ca (OH) 2, reacting, and aging to obtain the negative active material of the zinc-nickel secondary battery. A hydrothermal coprecipitation method is adopted, used raw materials comprise calcium hydroxide, zinc oxide, potassium hydroxide and the like, and a calcium zincate crystal generated in the preparation process has a quadrilateral crystal form. The crystal form of calcium zincate can be effectively stabilized by controlling hydrothermal coprecipitation conditions. The solubility of the zinc oxide in an alkaline solution is low and is far lower than that of zinc oxide. And due to the characteristic, the concentration of zincate radicals in the electrolyte is remarkably reduced, so that the growth of negative electrode dendritic crystals is effectively inhibited, and the cycling stability and the service life of the zinc-nickel battery are further improved.

Disclosed are a pure-phase polyanionic sulfate sodium ion battery positive electrode material and a preparation method therefor. The chemical general formula of the pure-phase polyanionic sulfate sodium ion battery positive electrode material is NaxMyAzSO4, wherein M is one or two or more of Mn, Fe, Co, Ni, Cu, and / or Zn, A is one or two or more of Li, K, and / or Na, and the value ranges of variables are: 0.75≤x≤0.85, 0.52≤y≤0.58, 0<z≤0.1, and x+2y+z=2. The pure-phase polyanionic sulfate sodium ion battery positive electrode material has the characteristics of good structural stability, excellent rate performance, good cycle performance, simple preparation method, and low cost.

The invention belongs to the technical field of environment-friendly fire extinguishing materials, and particularly relates to fire extinguishing powder based on seed crystal induced struvite and a preparation method of the fire extinguishing powder. The method comprises the following steps: by taking nitrogen and phosphorus-rich supernate in a sewage treatment plant as a raw material, firstly removing heavy metal ions in sewage through a cation selective permeable membrane, then adjusting the pH value of the supernate and the ratio of nitrogen to phosphorus, introducing seed crystal to induce struvite (MAP) to crystallize and precipitate, and filtering and drying to obtain seed crystal induced synthesized MAP particles; a horizontal planetary ball mill is further adopted, MAP and a modifier are evenly mixed and ground, and the MAP fire extinguishing powder with the good fire extinguishing performance is prepared. The layered double hydroxide (LDH) is creatively adopted as a seed crystal inducer, the pyrolysis starting temperature of the layered double hydroxide (LDH) can be remarkably increased, meanwhile, the thermal decomposition dynamic process is optimized, and therefore the thermal stability and the fire extinguishing efficiency of the layered double hydroxide (LDH) serving as the dry powder fire extinguishing agent are greatly improved.

To propose a sodium composite metal sulfate material with improved ionic conductivity and a method for producing a sodium composite metal sulfate material with improved ionic conductivity.SOLUTION: The sodium composite metal sulfate material comprises a solid solution which is a sodium composite metal sulfate in which a part of Zn in Na6Zn(SO4)4 is substituted with a trivalent or higher metal M. The method for producing a sodium composite metal sulfate material comprises a stirring step of adding, to a solvent, compound I containing sodium, compound II containing zinc, and compound III containing metal M (wherein at least one of compound I, compound II, and compound III is a sulfate) and stirring, and a drying step of evaporating and drying a stirred product obtained by the stirring step to dryness.SELECTED DRAWING: None

The application belongs to the field of new materials and electronic information technology, and particularly relates to a transition metal doped ZnIn2S4 gas sensor and a preparation method and application thereof. The gas sensor comprises a substrate and a transition metal doped ZnIn2S4 nanoarray in situ grown on the surface of the substrate, the nanoarray is composed of a plurality of two-dimensional nanosheet layers, the two-dimensional nanosheet layers are arranged in an interlaced stacking mode and extend at an angle of ±5° relative to the normal direction of the substrate surface, and the two-dimensional nanosheet layers are combined into a network assembly with a three-dimensional flower-like topological structure through physical or chemical connection. The preparation method is simple, the energy band structure of the material is effectively controlled and the band gap is reduced, on the other hand, the specific surface area of the material is significantly increased and the pore size distribution is optimized. The gas sensor prepared by the method has excellent gas selectivity to triethylamine, high response value and fast recovery speed, and is expected to be applied to the fields of environmental monitoring and food safety.

This invention relates to the field of electrochemical energy storage materials technology, specifically to a modified zinc oxide for aqueous zinc-ion batteries, its preparation method, and its application. The molecular formula of the modified zinc oxide for aqueous zinc-ion batteries is (ZnO). x [In a Bi β R c Al₂O₄·zH₂O, where a:β:x:c = 0.1–0.3: 0.05–0.2: 0.8–1.2: 0.01–0.1, z = 0.3–0.7; the matrix framework of this material is spinel-type zinc aluminate ZnAl₂O₄ with a ZnO shell, and the matrix framework has channels and is doped with In. 3+ Bi 3+ and rare earth R 3+ The rare earth element R is selected from at least one of La, Ce, or Y. The modified zinc oxide material of the present invention solves the problems of dendrite growth, side reactions, and low cycle life in zinc-ion batteries by designing a spinel matrix framework within the zinc oxide shell and co-doping with multiple elements.

The invention belongs to the technical field of catalyst preparation, and discloses a method for preparing a copper-zinc-based catalyst by a complexing recrystallization method, which comprises the following steps: step 1, dissolving a copper-containing solid and a zinc-containing solid in an ammonia-containing solution, and heating and stirring in a closed environment to obtain a complex solution containing copper ammonia and zinc ammonia complexes; the solvent component of the ammonia-containing solution is any one or a mixture of more of water, methanol and ethanol; step 2, cooling the complex solution added with the auxiliary agent so as to separate out a precipitate from the complex solution; 3, filtering the precipitate, and washing the obtained filter cake with a solvent; and carrying out drying, roasting and compression molding on the filter cake to obtain the catalyst. According to the method, long-time heating is not needed, the heating temperature is limited, precipitation is obtained in a cooling crystallization mode subsequently, no extra energy needs to be consumed basically, meanwhile, pollution of products and by-products is small, and environmental protection is facilitated.

The present invention provides a novel method for producing an ion-exchanged hydrotalcite, the method including no complicated steps, needing no massive equipment, and enabling a hydrotalcite to be ion-exchanged while inhibiting the formation of a by-product, etc. This method for producing an ion-exchanged hydrotalcite (3) is characterized by comprising a first step, in which a powdery or pasty hydrotalcite (1) is mixed and reacted with an aqueous solution of an acid (2) so that the resultant mixture has a water content in the range of 10-60 mass%, and a second step, in which a reaction product obtained in the first step is dried and pulverized without via a cleaning step.

The present invention patent application relates to a dressing (1) pertaining to the technical field of medical-use materials; said dressing (1) comprises a textile material body (2) and a medicinally functional element (3) incorporated into the textile material body (2), consisting of copper and / or gold (AuNPs) and / or zinc and / or zinc oxide and / or titanium dioxide and / or silver nanoparticles.

The application discloses a sodium-ion layered positive electrode material, a preparation method and a positive electrode sheet. + , H + , F ‑ of a lithium-ion battery core recovery liquid; a sodium source and the lithium-ion battery core recovery liquid are prepared into a solution; (2) a sodium-ion layered positive electrode material is mixed into the solution to prepare a mixed slurry; (3) the mixed slurry is subjected to suction filtration and drying to obtain a precursor powder; and (4) the precursor powder is sintered to obtain the sodium-ion layered positive electrode material. The application overcomes the defects of poor cycle performance and unstable surface of the sodium-ion layered positive electrode material.

The present invention provides a double metal layered hydroxide represented by the formula [M(II) 1‑x M(III) x (OH)2] x+ (A n‑ ) x / n ·mH2O, wherein M(II) contains a divalent cation selected from at least one of Mg, Zn, Ca, Ni, Co, Cu, Fe, Mn, and Sr, M(III) contains a trivalent cation selected from at least one of Al, Fe, Cr, Co, In, Ga, and V, A n‑ contains an anion selected from at least one of CO3 2‑ , OH ‑ , F ‑ , Cl ‑ , SO4 2‑ , NO3 ‑ , PO4 3‑ , B(OH) ‑ , VO4 3‑ , MnO4 ‑ , ClO4 ‑ , a carboxylate, a sulfonate, a sulfinic acid, and a thiocarboxylate, x is 0 < x < 1, n is the valence of A, and m is a number of 0 or more, and the double metal layered hydroxide has an average particle diameter D50 of 0.3 to 1.0 μm, a BET specific surface area of 8 to 25 m 2 / g, and a crystallite size of a D003 plane of 340 to 400 angstroms.

This invention belongs to the field of zinc oxide synthesis technology, specifically relating to a highly dispersible modified zinc oxide composite material and its preparation method. The preparation method of this invention is as follows: CO2 is passed into a Ca(OH)2 aqueous solution to carry out a first carbonation reaction, obtaining a calcium carbonate slurry; the calcium carbonate slurry and a zinc ion solution are first mixed to obtain a mixture; the mixture is second mixed with carbonate ions, and the zinc ions and carbonate ions undergo an in-situ carbonation reaction on the surface of the calcium carbonate particles to obtain a zinc carbonate composite material; the zinc carbonate composite material is calcined to obtain a zinc oxide composite material; the zinc oxide composite material, a coupling agent, and water are third mixed to carry out a coupling reaction, obtaining a modified zinc oxide composite material. The preparation method of this invention can achieve in-situ growth of zinc carbonate on the surface of calcium carbonate, followed by calcination to decompose the zinc carbonate into zinc oxide, obtaining highly dispersible zinc oxide, which is then modified with a coupling agent to obtain highly dispersible modified zinc oxide.

The present disclosure relates to a method that includes treating a layer of ZnTe with a metal halide, where the layer has a first grain size between 25 nm and 250 nm before the treating and the layer has a second grain size after the treating that is larger than the first grain size. In some embodiments of the present disclosure, the ZnTe may include at least one of Zn1-wCdwTe, ZnTe1-xSex, Zn1-yCdyTe1-zSez, or a combination thereof and each of w, x, y, and z are independently between 0 and 0.9, inclusively.

Provided is a metal oxide nanoparticle composition including metal oxide nanoparticles, a polymer including a moiety represented by Formula 1, and a solvent, wherein an amount of the polymer is about 0.1 wt % to about 1 wt % of the weight of the metal oxide nanoparticles, wherein, in Formula 1, R1 is a functional group including two or more electron donor atoms, and n is an integer from 100 to 500:

The present invention relates to a method for preparing zinc phosphate with a controlled grain size.

This invention discloses an interlayer confined heteroatom-doped carbon material, its preparation method, and its applications. Utilizing the tunable size of LDH crystals, the interlayer confined nanoscale of the carbon material can be precisely controlled by adjusting the synthesis pH. The controllable structure directly enhances reaction kinetics, making the reduction efficiency of Fe³⁺ by the CNS material more than 2.5 times that of traditional carbon materials, while simultaneously significantly improving antibiotic degradation capabilities. The interlayer confined space functions as both a rapid mass transfer channel and a nano-enrichment device, greatly increasing the reactant transport rate and local concentration. Combined with heteroatom doping, it significantly enhances the adsorption and electron transfer capabilities for Fe³⁺, effectively suppressing iron ion hydrolysis and iron sludge formation, simultaneously addressing the three major drawbacks of traditional Fenton processes and bulk carbon-based materials: low utilization of active sites, slow mass transfer, and low iron recycling efficiency. The process is simple and controllable, uses economical raw materials, and the resulting solid material is easy to recycle, making it suitable for the efficient treatment of recalcitrant organic pollutants in rural sewage, industrial wastewater, and other scenarios, demonstrating strong practicality.