65 results about "Copper fluoride" patented technology

The present invention relates to primary and secondary electrochemical energy storage systems, particularly to such systems as battery cells, which use materials that take up and release ions as a means of storing and supplying electrical energy.

The invention relates to brazing flux used for brazing, in particular to novel brazing flux used for stainless steel and aluminum brazing. The composition of the brazing flux comprises potassium fluoroaluminate+potassium hexafluoroaluminate (KA1F4+K3A1F6) eutecticum, zinc fluoride (ZnF2), copper fluoride (CuF2), and stannic fluoride (SnF4). The novel brazing flux is free of corrosion, and ingredient preparation is simple and convenient, so that production cost is low. Under high temperature, the madefaction and the spreadability of the brazing flux are favorable to the madefaction and the spreadability of brazing filler metal. Welded products are thin in welding joint, high in strength, free of cold solder joints, free of brazing filler metal stacking, and small in residue of brazing flux after welding. Moreover, the residue is easy to clean up. The novel brazing flux used for stainless steel and aluminum brazing is low in cost, simple in preparation, and high in practical value.

Brazing or soldering materials which effectively improve the wettability of the brazing alloy or solder without using flux and a method of manufacturing such materials are provided. A metallic base is placed on turntable inside a vacuum chamber. A copper target is affixed to a sputtering electrode above the metallic base. Air is removed from the vacuum chamber through a vacuum outlet to increase the vacuum therein to a specific pressure, and carbon tetrafluoride and argon are introduced from a gas inlet to control the sputter pressure. Thereafter, turntable is rotated while a high frequency voltage is applied between the target and the metallic base to form a halide layer, such as a layer of copper fluoride, on a surface of metallic base.

The invention provides an interface protection structure and a preparation method thereof and a battery comprising the interface protection structure. The interface protection structure comprises a metal fluoride and a binder. The metal fluoride is one or more of nickel fluoride, manganese fluoride, iron fluoride, titanium fluoride, copper fluoride, tin fluoride, and the like. The structure can form a protective layer containing lithium fluoride during the cycle process of lithium metal batteries to protect lithium metal electrodes. The interface protection structure is prepared by the following method: (1) providing a mixed slurry comprising a metal fluoride, a binder, a solvent and/or a carbon material; (2) coating one side of a diaphragm with the mixed slurry to obtain a diaphragm containing a first coating; and (3) baking the diaphragm containing the first coating to obtain the interface protection structure.

A non-corrosion solder for the HF induced pressure soldering between stainless steel and aluminum contains the eutecticevaporate of potassium tetrafluoroaluminate and potassium hexafluoroaluminate (42-97 Wt%), lithium fluoride (0.5-8.5), Zinc fluoride (0.5-4.5), silicon powder and/or potassium pluorosilicate (2-4.5), nickel fluoride (0-3), cesium fluoride or cesium fluoroaluminate (0-3), copper fluoride (0-0.3), tin fluoride (0-0.5) and cadmium fluoride (0-3.5).

The invention discloses a method for synthesizing a 3-hydroxy-3-arylindole-2-one derivative shown as a structural formula (I), which comprises the following steps of: fully reacting raw materials such as an isatin compound shown as a structural formula (II) and arylboric acid shown as a structural formula (III) in an inert organic solvent in the presence of a copper catalyst, a nitrogen-containing bidentate ligand and an alkaline compound, and separating and purifying reaction liquid after the reaction is finished to obtain the 3-hydroxy-3-arylindole-2-one derivative, wherein the copper catalyst is one or any combination of copper trifluoromethanesulfonate, copper acetylacetonate, copper acetate, cuprous iodide, copper bromide, copper fluoride and copper chloride. The method is high in implementation value and good in social benefit and economic benefit.

The present invention relates to a brazing flux for brazing metal, its composition includes (wt%) KAlF4+K3AlF6 cocrystal body 95.0-97.5, zinc fluoride 1.5-4.0, copper fluoride 0.2-0.5, tin fluoride 0.6-1.5 and cadmium fluoride 0.1-0.5. Said brazing flux is used for brazing stainless iron-aluminium.

The invention discloses a copper fluoride (I) reagent as well as a preparation method and an application thereof. The copper fluoride (I) reagent is prepared through the following steps: stirring cuprous chloride and sodium tert-butoxide in a tetrahydrofuran solvent at room temperature to react, and adding a nitrogen ligand and triethylamine trihydrofluoride so as to obtain the copper fluoride (I) reagent which is stable in air. The triethylamine trihydrofluoride serves as a fluorine element source of the reagent, and the reagent can efficiently catalyze haloalkane to form hydrofluoroalkane. The high-purity and high-yield copper fluoride (I) reagent can be directly obtained through utilizing the industrial low-cost cuprous chloride, and has good reactivity with the hydrofluoroalkane containing a plurality of important functional groups; and a metal fluorinated reagent can be prepared without using toxic compounds and precious metals, the cost and operation requirements can be greatly lowered, and the copper fluoride (I) reagent has a good industrial application prospect.

The invention provides a hydroxy copper fluoride nanosheet and a preparation method thereof, and belongs to the technical field of nanomaterial preparation. The preparation method comprises the following steps: firstly, dissolving copper nitrate and hexamine in deionized water, stirring for 10 minutes, then adding NaF and continually stirring for 15 minutes; pouring a mixed solution into a polytetrafluoroethylene lining, and placing the polytetrafluoroethylene lining into a stainless steel high-pressure reaction kettle for sealing; preserving heat at the temperature of 90 to 115 DEG C for reacting for 2 to 18 hours; centrifugally cleaning a reaction product with deionized water after natural cooling, and drying to obtain a light-green powdery sample. The prepared nanosheet is prepared fromCuOHF with a monoclinic crystal structure, and the nanosheet is about 200 to 400nm in side length and about 20 to 30nm in thickness. The hydroxy copper fluoride nanosheet is prepared from nontoxic and cheap raw materials, and the method is simple, high in repeatability and low in cost; the prepared product has a potential application prospect on the aspects of short-wavelength light-emitting devices, ultraviolet detection, high-temperature and high-power electronic devices and the like.

The invention relates to the field of brazing materials, in particular to fluoride brazing flux for copper-aluminum dissimilar metal and a preparation method for the fluoride brazing flux. The fluoride brazing flux consists of cesium fluoride, aluminum trifluorid, potassium fluoride, copper difluoride and assistant. The preparation method comprises the following steps: mixing the cesium fluoride, the aluminum trifluorid, the potassium fluoride, the copper difluoride, zinc difluoride and lithium fluoride powder with zinc powder or ZnAl alloyed powder in proportion, adding a proper amount of deionized water and grinding in a mortar to form paste, and then, drying and grinding.

The invention discloses a preparation method of a polytetrafluoroethylene sheet for automobiles. The preparation method includes the steps that a carbon nanotube is subjected to acidification so that an acidified carbon nanotube can be obtained; acryloyl chloride reacts with the acidified carbon nanotube so that a modified carbon nanotube can be obtained; polytetrafluoroethylene micro powder is subjected to argon plasma treatment, and is added into a dimethylformamide solution of glycidyl methacrylate and the modified carbon nanotube, and after a reaction, modified polytetrafluoroethylene micro powder is obtained; samarium oxide, molybdenum disulfide, aluminum trioxide, calcium carbonate, silicon carbide, zirconium oxide, wollastonite, ferroferric oxide, copper sulfide and copper fluoride are added in acetone, hexadecyl trimethyl ammonium bromide, polyethylene glycol and a silane coupling agent are added, a stirring reaction is performed, and a modified filler is obtained; and aramid fibers, glass fibers, zinc dialkyl dithiophosphate and the modified filler are mixed uniformly, and after the modified polytetrafluoroethylene micro powder, polyacrylonitrile, epoxy resin, polyether ether ketone, polyformaldehyde and polyimide are added and stirred uniformly, the polytetrafluoroethylene sheet is obtained by means of cold pressing forming and sintering.

A composition for forming an electrode. The composition includes a metal fluoride, such as copper fluoride, and a matrix material. The matrix material adds capacity to the electrode. The copper fluoride compound is characterized by a first voltage range in which the copper fluoride compound is electrochemically active and the matrix material characterized by a second voltage range in which the matrix material is electrochemically active and substantially stable. A method for forming the composition is included.

An organic electroluminescent component comprises a conductive anode substrate, and a hole injection layer, a hole transmission layer, a luminescent layer, an electron transmission layer and a cathode which are sequentially laminated on an anode layer of the conductive anode substrate, wherein the hole injection layer comprises a first hole injection auxiliary layer laminated on the anode layer and a second hole injection auxiliary layer laminated on the first hole injection auxiliary layer; the first hole injection auxiliary layer is made of copper oxide, cuprous oxide, copper fluoride or cuprous fluoride; the second hole injection auxiliary layer is made of nickel oxide. The organic electroluminescent component uses two hole injection auxiliary layers, so that the hole injection efficiency is improved and further the luminescent efficiency of the organic electroluminescent component is improved. The invention further provides a manufacturing method of the organic electroluminescent component.

The invention discloses a copper fluoride based hydrotalcite-like catalyst, a method for preparing the same and application of the copper fluoride based hydrotalcite-like catalyst. The copper fluoride based hydrotalcite-like catalyst comprises Cu, ZnO, Al2O3 and fluoride. A molar ratio of Cu elements to Zn elements is 2, a ratio of a total molar number of the Cu elements and the Zn elements to a molar number of Al elements is 0.5-4, and a molar ratio of F elements to the Al elements is 0.29-2.57. The copper fluoride based hydrotalcite-like catalyst, the method and the application have the advantages that the copper fluoride based hydrotalcite-like catalyst is high in metal element dispersion degree and strongly alkaline site quantity and favorable for dissociating and adsorbing H2 and stably adsorbing CO2, and is stable in performance during CO2 hydrogenation reaction operation, and the methanol selectivity can be obviously enhanced while a high CO2 conversion rate is guaranteed; the method is simple and is easy to implement, and industrial up-scale can be facilitated.

The invention encompasses a semiconductor processing method of cleaning a surface of a copper-containing material by exposing the surface to an acidic mixture comprising Cl.sup.+, NO.sub.3.sup.+ and F.sup.+. The invention also includes a semiconductor processing method of forming an opening to a copper-containing substrate. Initially, a mass is formed over the copper-containing substrate. The mass comprises at least one of a silicon nitride and a silicon oxide. An opening is etched through the mass and to the copper-containing substrate. A surface of the copper-containing substrate defines a base of the opening, and is referred to as a base surface. The base surface of the copper-containing substrate is at least partially covered by at least one of a copper oxide, a silicon oxide or a copper fluoride. The base surface is cleaned with a cleaning solution comprising hydrochloric acid, nitric acid and hydrofluoric acid to remove at least some of the at least one of a copper oxide, a silicon oxide or a copper fluoride from over the base surface.

The invention provides copper brazing paste for brazing. The copper brazing paste for brazing is prepared from the mixed materials comprising, by weight, 60%-70% of copper-based powder brazing filler metal, 2%-6% of brazing flux, 10%-30% of compound solvent, 0.5%-1% of corrosion inhibitor, 1%-3% of thixotropic agent and 4%-8% of activating agent. The brazing flux is zinc fluoride and stannous fluoride or copper fluoride. The compound solvent is composed of tetrahydrofurfuryl alcohol, triethylene glycol and diethylene glycol monobutyl ether, wherein the volume ratio of the tetrahydrofurfuryl alcohol, the triethylene glycol and the diethylene glycol monobutyl ether is 40-50:10-20:30-50. The copper brazing paste for brazing reduces the dosage of a corrosive brazing flux and even eliminates the corrosive brazing flux and has excellent spreading rate and welding performance.

The invention provides a Bi<3+>,B<3+> doped copper fluoride positive electrode material gradiently coated by Bi2O3/BiF3-2xOx and used for a lithium battery, and a preparation method thereof. According to the method, Bi<3+>,B<3+> doped copper fluoride is prepared through solid-phase synthesis; then on the basis of the characteristic that BiF3 is prone to gradual oxidation into Bi2O3 at a high temperature, BiF3-2xOx (wherein 0<x<0.3) and a Bi2O3 layer successively coat Bi<3+>,B<3+> doped copper fluoride particles so as to improve surface electron conduction capability of Bi<3+>,B<3+> doped copper fluoride and to resist harmful effect of an organic electrolyte on particle surfaces; and comprehensive electrochemical performance of copper fluoride is greatly improved through Bi<3+>,B<3+> doping.

A method of fabricating a sputtering target, a sputtering target fabricated by the method, and an organic light-emitting display apparatus fabricated by using the sputtering target. The sputtering target may be used for forming a thin film encapsulation layer. The sputtering target includes tin oxide as a main component, and a copper fluoride compound as a dopant.

A method of fabricating a thin film transistor includes forming a gate electrode on a substrate, forming a semiconductor layer on the gate electrode, forming a source electrode on the semiconductor layer, forming a drain electrode on the semiconductor layer spaced apart from the source electrode, forming a copper layer pattern on the source electrode and the drain electrode, exposing the copper layer pattern on the source electrode and the drain electrode to a fluorine-containing process gas to form a copper fluoride layer pattern thereon, and patterning the semiconductor layer.

The invention provides a preparation method for alkali type copper fluoride, which is characterized in that copper powder, 1-Chloromethyl-4-fluoro-1 and 4 - dinitrogen mixed double loop (2.2.2) octane salt are mixed according to the molar ratio ranging from 1to 1 to 1to2, and then, under the action of a mixed solution of organic solution and water, carrying out reaction for 5 to 24 hours at a temperature of 20 DEG C to 100 DEG C, after that filtering and removing the white precipitate, so as to obtain the copper fluoride by concentrating the mother liquor. The synthetic method provided by the invention has the advantages that the raw material is low in cost and east to obtain, the operation is simple and safe, the synthetic step is short, and the depuration is simple.

The invention discloses a copper salt catalyzing system. The copper salt catalyzing system is used for catalyzing esterification reaction to prepare a methyl benzoate compound. The copper salt catalyzing system is composed of a copper salt, an oxidant and an alkali, wherein the mol ratio of the copper salt to the oxidant is 1: 15 to 40; the copper salt is selected from one or a mixture of more than one of 8-hydroxyquinoline copper, cupric acetate monohydrate, copper acetylacetonate, cuprous bromide, anhydrous cupric sulfate, copper fluoride dihydrate and pure copper; and the oxidant is one of tert-butyl hydroperoxide, di-tert-butyl oxide or dicumyl peroxide. The newly developed copper salt catalyzing system for benzyl alcohol esterification reaction greatly reduces the reaction cost, the raw materials are simple and easy to gain, the system is in a wide applicable scope of substrates, the yield is up to 99%, the reaction is carried out in the air atmosphere, the operation is simple, and the chemoselectivity is high; and the copper salt catalyzing system is environmentally friendly, has no three-waste discharge, meets green chemistry requirements, and is also beneficial for industrial application.

The invention relates to a continuous conductive liquid phase synthesized C/Cu/CuF2 composite copper fluoride lithium ion battery positive electrode material and a preparation method thereof. According to the method, side-reaction products such as various compound salts of copper fluoride in liquid phase reaction are prevented by designing a mixing mode of raw materials of copper sulfate pentahydrate and ammonium fluoride and an addition mode and addition rate of water; meanwhile, a high-conductivity continuous carbon film with a hole and gap structure is formed by the drying process under a low-temperature and high-vacuum condition and the subsequent thermal treatment process, and the electron conductivity of a composite material is substantially improved; and moreover, a certain amount of copper is reduced on surface of copper fluoride particles in an in-situ way, a homogeneous crystal core is provided for an electrode material during discharging, dynamics blocking formed by a new phase is reduced, and the capacity of the material, the cycle capacity stability and a potential of a discharge platform are improved.

The invention discloses an organic electroluminescent device. The organic electroluminescent device comprises a conductive anode substrate as well as a ,hole transport layer, a light-emitting layer, an electronic transmission layer and a cathode which are stacked on an anode layer of the conductive anode substrate in sequence, wherein the anode layer is made from indium tin oxide; materials of the hole transport layer comprise the organic hole transport material and a doping material doped in the organic hole transport material; the doping material is an oxide of copper or a fluoride of copper; the oxide of the copper is at least one of copper oxide and cuprous oxide; the fluoride of the copper is at least one of copper fluoride and cuprous fluoride; HOMO energy level of the organic hole transport layer is 5.0 eV-5.4 eV; a mass ratio of the doping material to the organic hole transport material is (5:100) to (30:100). The organic electroluminescent device is relatively high in light-emitting efficiency. The invention further provides a preparation method for the organic electroluminescent device.

Provided is a method of etching a silicon nitride film, which comprises subjecting the silicon nitride film located on copper to dry etching using a mixture of fluorocarbon gas and an inert gas as the reaction gas, the fluorocarbon gas containing CF₄ and CHF₃ supplied at flow rates in a ratio of 3:7 to 0:1 or contains CF₄ and CH₂F₂ supplied at flow rates in a ratio of 2.5:1 to 0:1, thereby suppressing the formation of copper fluoride.