113results about "Copper compounds" patented technology

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 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 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.

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

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.

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.

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.

The invention discloses a preparation method of a cesium-copper-iodine semiconductor for a photoelectric device, and belongs to the field of semiconductor halide perovskite luminescence, and the cesium-copper-iodine semiconductor prepared by the method is used as a core functional material for manufacturing devices such as an LED (Light Emitting Diode), an ultraviolet photoelectric detector and a scintillator. The preparation method comprises the following steps: dissolving cesium-copper-iodine in an organic solvent, dropwise adding hypophosphorous acid to obtain a mixed solution, transferring the mixed solution into a reaction kettle for reaction to obtain a cesium-copper-iodine mixed solution, extracting cesium-copper-iodine microcrystalline powder by using an anti-solvent process, centrifuging, drying and grinding to obtain the cesium-copper-iodine microcrystalline powder. And the all-inorganic cesium-copper-iodine microcrystalline powder with high quantum yield, high crystallinity and high stability is obtained. The hypophosphorous acid added in the preparation is used for inhibiting oxidation and improving the synthesis quality of the cesium-copper-iodine microcrystal particles, and the synthesis in the reaction kettle is used for enabling the cesium-copper-iodine reaction to be more sufficient, the crystal structure to be more complete and the phase to be purer, so that the high stability and the high quantum yield of the cesium-copper-iodine microcrystal powder are ensured.

The invention relates to a treatment method of copper-containing waste acidic etching liquid, in particular to a low-cost recovery treatment method of waste acidic etching liquid based on ammonia water alkali neutralization reaction, which adopts a conventional alkali neutralization method to recover and treat waste acidic etching liquid, and has the advantages of higher alkali consumption and higher treatment cost. In order to solve the problems, the invention provides the low-cost recovery treatment method for the waste acid etching liquid based on the ammonia water alkali neutralization reaction, the method starts from evaporation and concentration of the waste acid etching liquid to the steps of alkali neutralization reaction, filter pressing, micro-pressure reaction, deamination, final evaporation and crystallization and the like, and each link is elaborately designed; compared with the prior art, the method provided by the invention ensures the high efficiency and stability of the treatment process, the ammonia water is adopted as alkali for alkali neutralization, the cost is lower, the ammonia water used in the alkali neutralization reaction is effectively recycled through the deamination reaction, the total usage amount of the ammonia water in the treatment process is remarkably reduced, and the recovery treatment cost of the waste acidic etching liquid is further reduced.

A powder comprising a metal oxide, wherein the powder satisfies the following conditions (1) and (2): (1) has a peak top of particle size in a range of 0.1 to less than 5 μm and in a range of 5 to less than 50 μm in a frequency distribution curve based on a volume-based particle size distribution obtained by a laser diffraction method, (2) a difference between a tap density and an initial bulk density satisfies the following relationship: 0.88 g / cm 3 ≤ (tap density - initial bulk density) ≤ 0.94 g / cm 3 .

The application belongs to the field of novel multi-component photoelectric conversion materials, and particularly relates to a hexagonal Cu3GeS4 quantum dot, a preparation method and application thereof. The crystal form of the Cu3GeS4 quantum dot is hexagonal, and the micro-morphology is nanoscale spherical and / or polyhedral structure. The preparation method comprises the following steps: (1) dissolving germanium dioxide in a mercaptoacetic acid and ammonia water medium for standby; (2) dissolving a copper source in a high-boiling organic solvent and heating to a first temperature for constant temperature reaction for a period of time, then rapidly heating to a second temperature, injecting the germanium solution, and separating the solid product after the reaction is completed, thereby obtaining the product. The Cu3GeS4 quantum dot has high crystallinity, high monodispersity and uniform morphology size. The synthesis method has mild reaction conditions and simple process, realizes controllable preparation of the hexagonal Cu3GeS4 quantum dot with controllable size, uniform morphology, high crystallinity and monodispersity, and the nanomaterial can be potentially applied to the field of photoelectric conversion.

The present application relates to a non-noble metal composite oxide catalyst and its preparation method and use, the non-noble metal composite oxide catalyst is Ce x Cu y O2 catalyst, wherein, x+y=1, 0.05≤y≤0.55.The present application utilizes Cu element to promote the redox capacity of the non-noble metal catalyst, the NH3 conversion rate of the catalyst is all above 80% under the condition of 250 DEG C, the N2 selectivity is all above 87% under the condition of 200 DEG C, further preferably, the NH3 conversion rate is all above 95% under the condition of 250 DEG C, when the temperature is higher than 250 DEG C, the NH3 conversion rate is still all above 95%, and the non-noble metal composite oxide catalyst has high selectivity to N2 in the process of catalyzing NH3 conversion, meets the current market application demand.

Some aspects are generally related to electrocatalysts, for example, for use during electrocatalysis. In some embodiments, the electrocatalysts may be included in a system configured to perform electrocatalysis. For instance, a system may include an electrode that is associated with a first oligo- or polynucleotide and an electrocatalyst that is associated with a second oligo- or polynucleotide. According to some such embodiments, the first and second oligo- or polynucleotides may at least partially base pair and substantially tether the electrocatalyst to the electrode. In some cases, the electrocatalyst comprises nanoparticles comprising copper (Cu), which may be suitable to be configured in a system for the electrocatalytic reduction of carbon dioxide (CO2). Some aspects are related to electrocatalysts comprising copper nanoparticles having shapes and / or compositions that may desirably affect their electrocatalytic performance, for instance, the related faradaic efficiencies and / or product distributions obtained during electrocatalysis using the nanoparticles. Still other aspects are generally directed to related methods of making and / or using the electrocatalysts and / or systems.

A superconductor having improved critical current density when exposed to high-energy neutron radiation and high magnetic fields, such as found in a compact nuclear fusion reactor, and a method of making the same are described. According to some aspects, the method includes, prior to deployment in the exposure environment, irradiating a polycrystalline superconductor with ions and / or neutrons at a cryogenic temperature to create "weak" magnetic flux pinning sites, such as point defects or small defect clusters. Irradiation temperature is chosen, for example as a function of the superconducting material, so that irradiation creates the beneficial flux pinning sites while avoiding detrimental widening of the boundaries of the crystalline grains caused by diffusion of the displaced atoms. Such a superconductor in a coated-conductor tape is expected to be beneficial when used as a toroidal field coil in a fusion reactor when cooled well below its critical temperature.

The present invention relates to a method for delithiating at least one lithium transition metal nitride, the method comprising the following steps: a) mixing at least one oxidizing agent with said lithium transition metal nitride, and b) recovering the material obtained at the end of step a).

To prevent yield drop of superconducting wire caused by surface abnormality formed in the middle of a production step of the superconducting wire.SOLUTION: A method of the present disclosure includes a step of acquiring surface images of a workpiece in the producing process of a superconducting wire, a step of predicting a current value distribution representing the distribution of critical current values of the superconducting wire, and a step of dividing the workpiece into at least one first portion and at least one second portion. At least one first portion is a portion predicted, in the current value distribution, to have a critical current value below a reference value at the position of that portion in the longitudinal direction. At least one second portion is a portion predicted, in the current value distribution, to have a critical current value equal to or above the reference value at the position of that portion in the longitudinal direction. The method further includes a step of cutting the workpiece so that at least one first portion is separated from the workpiece.SELECTED DRAWING: Figure 16

The present application relates to a nanocomposite preparation apparatus and a nanocomposite prepared using same, and a nanocomposite preparation apparatus of the present application can prepare a nanocomposite having excellent stability by reducing toxicity while maintaining antibacterial properties of conventional antibacterial metals.

The invention relates to the field of ion batteries, in particular to a metal compound soft and hard carbon composite material and a preparation method and application thereof. A polyphenol hydroxyl structure in a polyphenol substance generates a strong chelation effect and a multivalent effect, a complex formed by the polyphenol substance and metal ions shows excellent stability, after high-temperature calcination, the surface layer is coated with soft carbon and a hard carbon template to complete heteroatom doping, and an intermediate complex is fired into a target compound. A hard carbon-metal compound-soft carbon three-layer coating structure relieves volume expansion and provides good electrochemical performance, and soft carbon coating reduces contact between hard carbon and electrolyte and improves the first efficiency of the battery. Biomass waste is adopted to be suitable for acid treatment and purification, the consistency of hard carbon is greatly improved, a uniform cellulose hard carbon template is prepared, meanwhile, polyphenol substances and cellulose have strong non-power-supply interaction, combination of the polyphenol substances and the cellulose is firmer through a cross-linking agent, formation of a complex on the cellulose template is facilitated, and the structural stability is enhanced.

A method for reducing copper from Cu(II) to Cu(I) comprises the step of reacting an Fe(II) reducing agent with Cu(II) in basic conditions. The method may be carried out in basic solution, for example ammoniacal solution. The method has particularly utility in the context of solutions which have been produced by the selective leaching of copper over other metals from elemental copper-containing mixtures into basic lixiviants and, in particular, into ammoniacal lixiviants.

The invention discloses a CsCu3S2 semiconductor material, a CsCu3S2 / Ga2O3 heterojunction and application of the CsCu3S2 / Ga2O3 heterojunction in photoelectric detection, and the CsCu3S2 semiconductor material and the CsCu3S2 / Ga2O3 heterojunction comprises the following steps: weighing cuprous sulfide, thiourea and cesium hydroxide monohydrate, and adding the cuprous sulfide, the thiourea and the cesium hydroxide monohydrate into a polytetrafluoroethylene liner; adding ethidene diamine into the polytetrafluoroethylene liner, sealing the polytetrafluoroethylene liner, then loading the polytetrafluoroethylene liner into a reaction kettle, and pressurizing to form a closed self-pressure system; placing the reaction kettle in a drying oven for heating and heat preservation, and naturally cooling to room temperature; sequentially carrying out cleaning and centrifugal treatment on the cooled reaction product; and removing the centrifuged supernatant, and carrying out vacuum drying on the precipitate to obtain CsCu3S2 nano-particle powder. The CsCu3S2 nano-particles prepared by the method are high in purity, good in crystallinity, high in light absorption activity and uniform in morphology; meanwhile, a CsCu3S2 sheet is used as a light absorption layer to be combined with Ga2O3 to form a heterojunction, and the heterojunction is combined with a silver paste electrode to form the photoelectric detector with excellent self-power-supply characteristics.