206results about "Copper compounds" patented technology

The invention provides a surface interface modified lithium-rich manganese-based positive electrode material and a lithium ion secondary battery. According to the invention, active oxygen substances such as O2, O2-, O-and oxygen polymer On-are absorbed and embedded into lattice gaps from the particle surface interface of the lithium-rich manganese-based positive electrode material under the driving of potential when the functional material is charged to a high voltage, and then the active oxygen is released when the functional material is discharged to a low potential, so that the active oxygen returns to the lithium-rich manganese-based positive electrode material again; and an active oxygen utilization reversible closed loop is formed. In the surface-interface modified lithium-rich manganese-based positive electrode material provided by the invention, the application of the surface functional material inhibits oxidation precipitation of lattice oxygen of the lithium-rich manganese-based positive electrode material in a high-voltage lithium removal state, and the positive electrode material can realize controllable oxygen reversible electrochemical deintercalation / intercalation at different potentials; and the cycling stability and the thermal stability of the material in a high-temperature and high-voltage environment are remarkably improved.

The invention belongs to the technical field of lithium ion batteries, and particularly discloses a metal organic framework packaged polyoxometallate coated ternary positive electrode material and a preparation method thereof. The preparation method of the ternary positive electrode material comprises the following steps: a) preparing metal A salt into a metal A salt solution; the preparation method comprises the following steps: preparing an ammonium molybdate compound into an ammonium molybdate compound solution, heating the ammonium molybdate compound solution to boiling, dropwise adding a metal A salt solution, and after dropwise adding, carrying out a constant-temperature reaction, filtering and recrystallizing to obtain Anderson type polyoxometallate; b) dissolving Anderson type polyoxometallate, a metal B salt and an organic ligand in water, and reacting at a certain temperature to obtain polyoxometallate packaged by a metal organic framework; and c) mixing a positive electrode material and the polyoxometallate packaged by the metal organic framework prepared in the step b) according to a ratio, and carrying out ball milling to obtain the ternary positive electrode material coated by the polyoxometallate packaged by the metal organic framework.

The invention relates to a textured KCu7S4 thermoelectric material and a preparation method thereof, and the method comprises the steps: sequentially adding a prepared KOH aqueous solution, CuCl2. 2H2O and Na2S. 9H2O into a high-pressure kettle, and fully stirring for dissolving; dropwise adding an N2H4.H2O aqueous solution into the mixed solution, fully stirring, sealing, transferring to a microwave chemical synthesis instrument, heating, keeping stirring, and reacting at a target temperature and self-generated pressure to generate a KCu7S4 nanowire preferentially growing along a [001] crystal orientation; and after the reaction is finished and natural cooling is carried out, a product is collected through centrifugation, full cleaning and vacuum drying are carried out, and then the KCu7S4 thermoelectric material with [001] preferred orientation in the direction perpendicular to the pressure direction is obtained through spark plasma sintering. According to the method, a surfactant and an organic solvent are not used, and macro, rapid, efficient and controllable preparation of the KCu7S4 nanowire is realized through a low-temperature, low-cost and low-energy-consumption microwave-assisted hydrothermal process.

The invention discloses a ferrate nanocage superstructure material and a preparation method and application thereof, the preparation method comprises the following steps: preparing a zinc-iron Prussian blue nanocube precursor material, then dispersing the precursor material in deionized water, and standing and aging for 24-120 hours at 15-45 DEG C to obtain a zinc-iron Prussian blue nanocage; the preparation method comprises the following steps of: dispersing in diluted hydrochloric acid, adding metal salt, uniformly stirring, standing and reacting for 6-48 hours at the temperature of 50-120 DEG C, filtering, washing, drying, and annealing for 1-5 hours at the temperature of 300-500 DEG C; according to the invention, the zinc-iron Prussian blue nanocube is used as a precursor, the zinc-iron Prussian blue nanocage is obtained through aging, and the ferrite nanocage superstructure material is prepared through ion exchange and has excellent gas-sensitive characteristic.

Provided herein are solid materials that are ionically conductive and electrochemically stable. Embodiments of the solid materials are argyrodite-type compositions that have high ionic conductivity. The compositions include small amounts of thiophilic metals, whose binary sulfides do not react with water to hydrogen sulfide (H2S). As such, H2S release is minimized or eliminated. Also provided are methods of fabricating the materials and batteries and battery components containing the materials.

The invention provides a method for recycling all components of a waste lithium iron phosphate battery based on light driving, and belongs to the technical field of waste battery recycling. The method comprises the following steps: discharging and disassembling the waste lithium iron phosphate battery to obtain a lithium iron phosphate-copper foil positive electrode, a carbon-aluminum foil negative electrode, a diaphragm and a battery shell; the method comprises the following steps: mixing and crushing a lithium iron phosphate-copper foil positive electrode and a carbon-aluminum foil negative electrode, performing high-temperature pyrolysis on mixed powder of the positive electrode and the negative electrode of the waste lithium iron phosphate battery in inert gas, and removing a binder; and putting the remaining powder into mixed organic acid, and sequentially carrying out organic acid coordination precipitation of copper, light-driven reduction precipitation of iron, coordination precipitation of aluminum hydroxide and high-alkali heating concentration on the obtained acid leaching solution to prepare lithium phosphate. According to the method, gradient low-energy-consumption recovery of all components in the positive and negative electrode powder of the waste lithium iron phosphate battery is realized, and the industrial problem that iron and phosphorus cannot be effectively recovered and utilized in a high-valued manner and can only be piled up in an iron-phosphorus slag form is solved.

Provided herein are solid materials that are ionically conductive and electrochemically stable. Embodiments of the solid materials are argyrodite-type compositions that have high ionic conductivity. The compositions include small amounts of thiophilic metals, whose binary sulfides do not react with water to hydrogen sulfide (H2S). As such, H2S release is minimized or eliminated. Also provided are methods of fabricating the materials and batteries and battery components containing the materials.

This invention discloses a method for fabricating high-temperature superconducting wires made of yttrium barium copper oxide (YBCO) by 3D printing, which can be divided into four steps: first, preparing a nanoscale superconducting powder precursor; second, formulating a printing paste with appropriate viscosity and support properties; then, using CAD 3D modeling, exporting model data in STL format, slicing using specialized software; and twisting the print head to achieve one-step fabrication of stranded wires with low current loss. Finally, the printed stranded wires are formed into practical superconducting stranded wire cables through processes such as deplasticization, phase formation, oxygen replenishment, and packaging. This invention makes it possible for the first time to apply advanced direct-write 3D printing technology to high-temperature superconducting wires. Fabricating micro-nanoscale superconducting core wires by 3D printing enables a core thinning process and enables integrated design of materials and structures. This invention simplifies the fabrication process of high-temperature superconducting wires, improving the current-carrying performance and production efficiency of high-temperature superconducting wires and reducing production costs.

The invention relates to the technical field of etching waste liquid treatment, and provides a nickel-containing etching waste liquid treatment method which comprises the following steps: 1, neutralizing and extracting copper; step 2, nickel deposition; step 3, evaporative crystallization; wherein the step I specifically comprises the following steps: slowly adding sodium bicarbonate into the nickel-containing waste liquid, stirring to adjust the pH value of the waste liquid to weak acidity, preferentially forming a basic cupric carbonate Cu2 (OH) 2CO3 precipitate when Cu < 2 + > is within the pH value range, and stably remaining Ni < 2 + > in the solution, and carrying out operations such as filtering separation and the like; and the step 2 specifically comprises the treatment of adding sodium hydroxide into the nickel-containing filtrate from which most of copper is removed to adjust the pH value to be neutral and the like. According to the technical scheme, the problems that according to an existing nickel-containing etching waste liquid treatment method, the harmless treatment effect is achieved in a chemical precipitation mode, the main purpose is to stabilize solid nickel, although the emission requirement is met, the waste liquid still contains copper, soluble salt and other components, and huge resource waste is caused by direct emission are solved.

The invention relates to a non-noble metal composite oxide catalyst and a preparation method and application thereof, the non-noble metal composite oxide catalyst is a CexCuyO2 catalyst, x + y = 1, and y is more than or equal to 0.05 and less than or equal to 0.55. The Cu element is utilized to promote the redox capacity of the non-noble metal catalyst, the NH3 conversion rate of the catalyst under the condition of 250 DEG C is 80% or above, the N2 selectivity of the catalyst under the condition of 200 DEG C is 87% or above, more preferably, the NH3 conversion rate under the condition of 250 DEG C is 95% or above, and when the temperature is higher than 250 DEG C, the NH3 conversion rate is still 95% or above; and the non-noble metal composite oxide catalyst has high selectivity on N2 in the process of catalyzing NH3 conversion, and meets the current market application requirements.

The invention relates to a lead-free perovskite composite material, a preparation method thereof and application of the lead-free perovskite composite material in a resistive random access memory, and belongs to the technical field of preparation of the resistive random access memory. The lead-free perovskite composite material comprises a doped Sb element, the chemical formula of the lead-free perovskite composite material is Cs3Cu2I5: Sb, the molar ratio of Sb to Cu is (0.1-1): 1, the perovskite Cs3Cu2I5 is doped and modified through the element Sb, the content of iodine vacancy (VI) in cesium-iodine-copper perovskite can be reduced, the stability of conductive filaments can be improved, and therefore the resistance change performance of the resistive random access memory is improved.

A compound represented by the Formula 1 and having an argyrodite-type crystal structure:LiaM1xM2wPSyM3z  Formula 1wherein M1 is at least one element of Group 2 or Group 11 of the periodic table, M2 is at least one metal element other than Li of Group 1 of the periodic table, M3 is at least one element of Group 17 of the periodic table, and wherein 4≤a≤8, 0<x<0.5, 0≤w<0.5, 3≤y≤7, and 0≤z≤2.

Treatment of multiple sclerosis with copper nanoclusters (CuNCs).

To provide a composite having excellent structural stability which comprises a middle layer (stabilization layer) that suppresses a problem such as chemical reaction and element diffusion, which could occur between two materials in the case where two portions including inorganic materials having constitutions different from each other bond, between the two materials, and a method for manufacturing the composite.SOLUTION: A structure 1 of the present invention comprises: a first material part 10 including a first inorganic material; a second material part 12 including a second inorganic material having a different constitution from the first inorganic material; and a stabilization layer 14 arranged between the first material part 10 and the second material part 12, where the stabilization layer 14 includes a compound expressed by M12M2O4 (in the formula, M1 and M2 are elements different from each other, M1 is at least one selected from Al, Fe and Ga, and M2 is at least one selected from Cu, Mg, Zn, Fe, Mn and Co ).SELECTED DRAWING: Figure 1

To provide a solid ion conductor compound, a solid electrolyte including the solid ion conductor compound, an electrochemical cell including the solid ion conductor compound and a method of preparing the solid ion conductor compound.SOLUTION: There are provided: a solid ion conductor compound represented by Chemical Formula 1 and having an argyrodite-type crystal structure; a solid electrolyte including the solid ion conductor compound; an electrochemical cell including the solid ion conductor compound; and a method of preparing the solid ion conductor compound. [Chemical Formula 1] LixM1vPSyM2wM3z In the Chemical Formula 1, M1 is at least one metal element selected from Group 1 to Group 15 of the periodic table, except Li, M2 is SOn, M3 is at least one element selected from Group 17 of the periodic table, and 4≤x≤8, 0≤v<1, 3≤y≤7, 0<w<2, 0≤z≤2 and 1.5≤n≤5.SELECTED DRAWING: Figure 1A

An electrode active material precursor, a preparation method thereof, an electrode active material, and a battery, the electrode active material precursor comprising carbon-complexed oxide particles, the oxide satisfying formula (1): M a O b (1) wherein M elements are selected from one or more of transition metal elements with a relative atomic mass less than 65, and can be selected from one or more of Ni, Co, Fe, Mn, Zn, Mg, Ca, Cu, Sn, Mo, Ru, Ir, V, Nb, Cr, a>0, b>0, and the powder resistivity of the carbon-complexed oxide particles is less than 100 Ω·cm.

In one embodiment, the present application discloses a compound that is a selective neuroactive agent for the treatment of diseases of the central nervous system (CNS). In one aspect, the neuroactive agent is a composition comprising polymorph SP. The present invention relates to Cu II -diacetyl-bis(N 4 -methyl-thiosemicarbazone)(diacetyl-bis(N 4 -Methyl-thiosemicarbazonato)-Cu II , Cu II (atsm), copper ATSM, and CuATSM, the latter term being used herein), as a pharmaceutical, particularly for the treatment of conditions that can be prevented, alleviated, or ameliorated by delivery of the metal.

The invention discloses a method for constructing nano coral perovskite by using a transient temperature field applied to high value-added carbon reduction, and relates to a method for preparing perovskite by using the transient temperature field. The invention aims to solve the problems of insufficient active sites, poor product selectivity, serious hydrogen evolution reaction and to-be-improved target product Faraday efficiency of the existing copper-based catalytic material. The method comprises the following steps: 1, preparing a precursor by a chemical bath impregnation method; and 2, preparing the La2CuO4 nano coral perovskite catalytic electrode based on a transient temperature field. The method is used for constructing the nano coral perovskite in the transient temperature field applied to high value-added carbon reduction.

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 relates to a metal oxide sheet with spherical convex particles and oxygen vacancies enriched on the surface, a preparation method and application. According to the sheet preparation method, metal oxide sheet xerogel is obtained through a heating bubbling method, and spherical convex particles and oxygen defects are enriched on the surface of the metal oxide sheet xerogel in combination with a staged annealing oxidation process. The diameter of the spherical convex particles on the surface of the thin sheet is 50-100 nm, the thickness of the thin sheet is 100-500 nm, the length and width size range of the thin sheet is not limited, and the thin sheet is suitable for various size specifications. The surface of the thin sheet is enriched with spherical convex particles and oxygen defects, so that adsorption sites with relatively high surface area / volume and high density can be provided, the surface electronic structure is improved, the electron transmission rate is accelerated, the sensing performance is enhanced, and the sensing stability is improved. The thin sheet has a wide application prospect in the fields of gas sensing, colorimetric sensing, fluorescence sensing, stress sensing, chemical sensing, photoelectric sensing and biological sensing.

The invention provides a nitrogen-defect g-C3N4 / CsCu2I3 composite material as well as a preparation method and application thereof, and belongs to the technical field of preparation of nano heterogeneous materials. A preparation method of a nitrogen-defect g-C3N4 / CsCu2I3 composite material comprises the following steps: dissolving cesium iodide and cuprous iodide in anhydrous acetonitrile, and carrying out a stirring reaction at 50-70 DEG C for 4-6 h to obtain a CsCu2I3 precursor solution; adding g-C3N4 into the CsCu2I3 precursor solution, and reacting for 10-14 hours at the temperature of 50-70 DEG C to obtain a crystallization solution; and dropwise adding diethyl ether into the crystallization solution, carrying out anti-solvent crystallization, aging, washing and drying to obtain the nitrogen-defect g-C3N4 / CsCu2I3 composite material. The nitrogen-containing defect rod-like g-C3N4 / CsCu2I3 binary nano heterojunction with good gas sensitive performance is prepared by the method disclosed by the invention.

The invention discloses a layered nanosheet Cu4 (OH) 6FCl electrode material and a preparation method and application thereof.According to the layered nanosheet Cu4 (OH) 6FCl electrode material and the preparation method and application thereof, a simple and convenient ion co-deposition method is adopted, NH4F and CuCl2. 2H2O which can be easily obtained are used as precursors to be subjected to a standing reaction to synthesize a three-dimensional Cu4 (OH) 6FCl nanosheet, the 3D porous structure can ensure that redox active sites of the Cu4 (OH) 6FCl electrode material are completely exposed, and the Cu4 (OH) 6FCl electrode material can be used for preparing the three-dimensional Cu4 (OH) 6FCl nanosheet. Ion diffusion kinetics are enhanced, and effective charge storage is increased. Compared with traditional transition metal halides (CuF2 and CuCl2), the cathode of the lithium metal battery based on Cu4 (OH) 6FCl shows excellent high reversible capacity and excellent cycling stability. Meanwhile, the simple and convenient synthesis method used in the invention effectively avoids the use of toxic reagents which are harmful to the environment, saves the cost and is suitable for large-scale production. The method conforms to the development concept of environmental protection, and unification of economic benefits, social benefits and environmental benefits is comprehensively achieved.

The present invention relates to a method for producing a solid material according to the following general formula (I): Li 6‑x‑2y Cu x PS 5‑y X(I), wherein X is selected from the group consisting of: F, Cl, I and Br; 0.005≤x≤5; and 0≤y≤0.5; the method comprises at least introducing at least lithium sulfide, phosphorus sulfide, a halogen compound and a copper compound, optionally in one or more solvents. The present invention also relates to the solid material and its use as a solid electrolyte, especially for electrochemical devices.

A raw material solution according to the present invention comprises, as solutes, a C1-4 rare earth element carboxylate, a C1-4 barium carboxylate, and a C1-4 copper carboxylate, and comprises, as solvents, water, two or more types of C1-4 alcohols, a C1-4 carboxylic acid, and a basic organic solvent. A method for manufacturing an oxide superconducting material according to the present invention comprises: a step for preparing the raw material solution; a step for forming a coating film from the raw material solution; a step for heating the coating film to form a temporary calcined film; and a step for heating the temporary calcined film to form an oxide superconducting material.

This invention discloses a magnetolite-type oxide, its preparation method, and its application. The preparation method includes the following steps: S1, dissolving rare earth nitrates, transition metal nitrates, and Al(NO3)3 in deionized water to obtain a mixed nitrate solution; S2, adding citric acid monohydrate to the mixed nitrate solution, heating and stirring, and evaporating to obtain a transparent gel; S3, drying the gel to obtain a loose and porous dry gel; S4, subjecting the dry gel to a first high-temperature treatment in air at 650–950°C to obtain a precursor; S5, grinding and crushing the precursor, mixing it evenly with the dissolved salt, and then subjecting it to a second high-temperature treatment in air at 1500–2000°C to obtain the magnetolite-type oxide. The preparation method of this invention is low-cost, simple, easy to implement, and widely applicable. When the magnetolite-type oxide is applied to lithium-sulfur batteries, it helps to improve battery performance.

The present invention provides an easy and scalable process for producing a compound of formula (I): N(2y / z)[Mx(GO3)y](I), wherein [Mx(GO3)y] is an anion, wherein Mx is an Atomic Quantum Cluster (AQC) consisting of x number of zero valent metal atoms; wherein G is Si or Ti; and y is an integer selected from 1, 2, 3, 4, 5 and 6; and wherein the compound of formula (I) has no net charge. In addition, the present invention is directed to a composition comprising the compound of formula (I), a process for producing the compound of formula (I); the uses of the compound of formula (I) and the compound of formula (I) for use as a medicament, its second medical uses, a pharmaceutical composition, kit-of-parts and an apoptotic agent comprising said compound of formula (I).

The proton conductor of the present disclosure contains a compound represented by the chemical formula BaaZr (1-x-y) Yb < x > Cu < y > O (3-delta). Wherein in the chemical formula, 0.95 < = a < = 1.05, 0.1 < = x < = 0.4, 0.01 < y < 0.20, and 0 < delta < = 0.65 are satisfied. The electrolyte membrane (10) of the present disclosure includes the proton conductor of the present disclosure.

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.