156results about "Zinc compounds" patented technology

The invention belongs to the technical field of halide solid-state electrolyte, and relates to a high-conductivity and high-lithium-stability modified halide solid-state electrolyte material constructed by solid source plasma, and a preparation method and application of the high-conductivity and high-lithium-stability modified halide solid-state electrolyte material. According to the preparation method, a halide solid electrolyte is taken as a matrix, halogenated ammonium salt is taken as a solid source, and the halide solid electrolyte is subjected to synergistic doping modification of elements such as nitrogen, fluorine / chlorine / bromine and the like by utilizing a plasma technology, so that the modified halide solid electrolyte material is obtained. The modified halide solid electrolyte material shows excellent conductivity and lithium-lithium symmetrical battery performance, and has a wide market application prospect. Meanwhile, the preparation method provided by the invention is simple, rapid, efficient and convenient, is easy to control, and contributes to promoting the development and application of the high-performance halide solid electrolyte material.

Provided is a semiconductor nanoparticle complex in which a ligand is coordinated to a surface of a semiconductor nanoparticle. The semiconductor nanoparticle includes In and P, the ligand includes a mercapto fatty acid ester represented by the following general formula, and the mercapto fatty acid ester has an SP value of 9.30 or less. General formula: HS—R1—COOR2 (where R1 is a C1-11 hydrocarbon group and R2 is a C1-30 hydrocarbon group). The present invention can provide a semiconductor nanoparticle complex that keeps high fluorescence quantum yield before and after purification.

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.

A quantum dot, a quantum dot-polymer composite, and an electronic device including the same. The quantum dot includes a core including a first semiconductor nanocrystal; a first shell including a second semiconductor nanocrystal including a Group III-VI compound on the core; and a second shell including a third semiconductor nanocrystal having a composition different from that of the second semiconductor nanocrystal on the first shell; wherein one of the first semiconductor nanocrystal and the third semiconductor nanocrystal includes a Group III-V compound.

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.

Provided are a metal element-doped metal oxide dispersion liquid and a method for producing the same, the metal element-doped metal oxide dispersion liquid being excellent in dispersibility of the metal element-doped metal oxide particles, and it being possible to satisfy characteristics (flatness, defect amount, PL intensity of quantum dots when laminated as an ETL on a quantum dot layer, charge transport properties, etc.)　The metal element-doped metal oxide dispersion liquid includes metal element-doped metal oxide particles and a solvent as a dispersion medium, and has a metal cation content calculated from Li, Na, K, and Ca included in the solvent of 1 to 2700 ppm, the metal oxide particles being particles having zinc oxide as a main component, the metal element doped into the particles having zinc oxide as a main component including one or more elements selected from Al, Mg, Li, Ca, Ga, and In, and the doped metal element being included in a ratio of 2-20 mol% with respect to elemental zinc.

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.

The present application discloses a lithium-supplementing additive, a preparation method therefor, and an application thereof. The lithium-supplementing additive includes a core body and a functional encapsulation layer covering the core body. The core body includes a lithium-supplementing material, and the lithium-supplementing material is a lithium-containing material having a unidirectional capacity, in which lithium ions are deintercalated during a first charge and free from intercalation during a discharge. Based on the lithium-supplementing material having a unidirectional capacity included in the lithium-supplementing additive of the present application, and lithium ions can be effectively deintercalated during the first charge and prevented from being intercalated into the lithium-supplementing material again during the discharge, therefore, the lithium-supplementing effect of the lithium-supplementing additive provided by the present application is ensured, and the initial efficiency and the overall electrochemical performance of a battery containing the lithium-supplementing additive is improved.

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.

To coat a ZnO surface with a safe and stable oxide.SOLUTION: A coated particle of the present invention includes ZnO of which at least a part is covered with ZnMOx (M is a metal element capable of constituting a composite metal oxide together with Zn). The coated particle is obtained by hydrothermal treatment of ZnO in the presence of a hydroxide of a metal capable of constituting a composite metal oxide together with Zn. The coated particle is suitable for an ultraviolet shielding agent, a cosmetic containing the same, and a paint having an ultraviolet shielding function, a gas permeation suppression function, or the like.SELECTED DRAWING: Figure 5

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 hydrotalcite for improving thermal stability and initial whiteness of PVC (polyvinyl chloride) and a preparation method of the hydrotalcite. The chemical composition of the hydrotalcite comprises M < 2 + > xM < 3 + > y (OH) 2x + 3y-x / 2 (CO3) x / 4. MH2O, wherein M < 2 + > is a divalent metal ion or a mixture of divalent metal ions and is selected from one or two of Mg < 2 + >, Ca < 2 + >, Ni < 2 + >, Zn < 2 + >, Mn < 2 + >, Cu < 2 + >, Co < 2 + >, Pd < 2 + > and Fe < 2 + >; m < 3 + > is a trivalent metal ion and is selected from one of Al < 3 + >, Ga < 3 + > and In < 3 + >; x and y are positive numbers, and the molar ratio of x to y satisfies x / y = 2.0-3.0; m is the content of crystal water, and m is 3.5-4.0. By regulating and controlling the specific surface area to be less than 20 m < 2 > / g, D50 to be less than 0.150 mu m and the grain size to be greater than or equal to 800 and combining a surface modification process, the compatibility and dispersity of the hydrotalcite and PVC are improved. The preparation method comprises the steps of raw material mixing and sanding, hydro-thermal synthesis, solid-liquid separation and washing, surface modification, drying and post-treatment, the hydrotalcite capable of improving PVC thermal stability and initial whiteness is obtained, the hydrotalcite can be uniformly dispersed in a PVC matrix, thermal decomposition is inhibited by absorbing HCl, the static aging time is prolonged, and meanwhile light scattering is reduced.

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.

A cadmium free quantum dot or a population thereof or a device including the same, wherein the cadmium free quantum dot includes a core (or a semiconductor nanocrystal particle) including a first semiconductor including a Group IIB-VI compound and a shell (or a coating) disposed on the core (or the semiconductor nanocrystal particle) including a Group IIB-V compound and exhibits a quantum efficiency of about 60% or higher.

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.

This reaction device (10) comprises: a micromixer (15) which includes a first supply port (Inlet 1), a second supply port (Inlet 2), and a discharge port (Outlet); a first supply unit (11) which supplies a first solution that contains a precursor of metal oxide nanoparticles which contain a first metal element, a precursor of metal oxide nanoparticles which contain a second metal element that is different from the first metal element, and a first solvent to the first supply port (Inlet 1) at a first flow rate; a second supply unit (12) which supplies a second solution that contains a reactant and a second solvent to the second supply port (Inlet 2) at a second flow rate; a microchannel (16) in which one end serves as a supply end and the other end serves as a discharge end, and a fluid discharged from the discharge port (Outlet) is supplied from the supply end; and a microreactor (17) which controls at least some of the reaction conditions for the microchannel (16).

A method of manufacturing an quantum dot light emitting device, a quantum dot light emitting device, and an electronic device, the method including: forming an anode, forming a quantum dot light emitting layer on the anode, forming an electron auxiliary layer including alkaline-earth metal containing oxide nanoparticles on the quantum dot emitting layer, and forming a cathode on the electron auxiliary layer, wherein the forming of the electron auxiliary layer includes: preparing a precursor dispersion including an alkaline-earth metal precursor, preparing a basic reducing agent solution containing a basic reducing agent, and adding the basic reducing agent solution into the precursor dispersion dropwise at a controlled rate to grow alkaline-earth metal containing oxide nanoparticles, dispersing the alkaline-earth metal containing oxide nanoparticles in a dispersion medium to prepare an alkaline-earth metal containing oxide nanoparticle dispersion, and coating the alkaline-earth metal containing oxide nanoparticle dispersion on the quantum dot light emitting layer.

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 invention provides a method for preparing zinc-aluminum-magnesium carbonate type hydrotalcite from aluminum ash, and belongs to the field of aluminum ash resource utilization. The method comprises the following steps: desalting aluminum ash to obtain desalted aluminum ash; the method comprises the following steps: dispersing desalted aluminum ash in an alkali solution, and after reaction gas overflows, carrying out microwave activation to obtain reaction slurry; leaching the reaction slurry at high temperature to obtain a sodium aluminate leaching solution; dropwise adding the sodium carbonate solution into the zinc and magnesium salt aqueous solution, and adjusting the pH value of the reaction system to 6-8 to obtain a first mixed solution containing zinc and magnesium carbonate precipitates; dropwise adding the leaching solution into the first mixed solution, and maintaining the pH value of a reaction system to 8.5-9 at the same time, so as to obtain a second mixed solution containing a zinc-aluminum-magnesium carbonate type hydrotalcite precursor; carrying out hydrothermal reaction on the second mixed solution to obtain a third mixed solution containing zinc-aluminum-magnesium carbonate type hydrotalcite; and the leaching efficiency of aluminum in the aluminum ash is improved while the zinc-aluminum-magnesium ternary carbonate type hydrotalcite with excellent product quality is prepared.

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.