137results about "Antimony compounds" patented technology

The invention belongs to the technical field of solid electrolytes, and relates to a selenium-doped sulfide solid electrolyte as well as a preparation method and application thereof. The general chemical formula of the sulfide solid electrolyte is Li < 6 + / -iP < 1-x > MxS < 5-y > SeyX, i is greater than or equal to 0 and less than 1, x is greater than 0 and less than 1, y is greater than 0 and less than 1, M is one or more of Zr, Ta, Nb, Mo, Bi, In and Y, and X is one or more of Cl, Br and F. According to the invention, the selenium element with larger ionic radius and lower electronegativity is introduced to replace the sulfur element, and Zr, Ta, Nb, Mo, Bi, In or Y elements are introduced, so that the doped sulfide solid electrolyte system has excellent stability to air, organic solvents and lithium while ensuring high ionic conductivity, and the assembled all-solid-state battery shows excellent cycle stability.

The invention discloses a preparation method of size-controllable monodisperse indium antimonide colloidal quantum dots, which comprises the following steps: (1) preparing a precursor solution containing an indium precursor and an antimony precursor, and heating the precursor solution at 50-300 DEG C for 1-20 minutes; (2) in an inert atmosphere, raising the temperature of a solvent to a reaction temperature, injecting a reducing agent, then injecting the heated precursor solution, maintaining the reaction temperature for 10s-30min, and then stopping the reaction to obtain monodisperse indium antimonide colloidal quantum dots; the reaction temperature is 250 to 300 DEG C; in the reaction system in the step (2), the concentration of the indium precursor and the concentration of the antimony precursor are independently 0.4-8 mmol / L; the size of the monodisperse indium antimonide colloidal quantum dot is regulated and controlled by regulating and controlling the concentration of a precursor in a reaction system, the injection mode of a precursor solution and the growth time. According to the preparation method disclosed by the invention, accurate regulation and control on the size of the indium antimonide colloidal quantum dot can be realized without the help of a complex size selective precipitation technology.

The invention discloses a hard carbon negative electrode composite material as well as a preparation method and application thereof, and relates to the technical field of sodium ion batteries. The hard carbon negative electrode composite material comprises an inner core and a shell coating at least part of the outer surface of the inner core, wherein the material of the inner core comprises graphite, and a metal oxide and a heteroatom which are doped in the graphite; the metal oxide at least comprises sodium oxide, and the metal oxide can react with sodium to form a sodium alloy material; the shell is made of amorphous carbon. The hard carbon negative electrode composite material disclosed by the invention has relatively high electronic conductivity and first charge-discharge efficiency, and also has relatively good low-temperature performance.

The invention discloses a preparation method and application of a metal sulfide adsorbent for adsorbing iodine and methyl iodide. The preparation method comprises the following steps: uniformly mixing an antimony source, a sulfur source, a deep eutectic solvent, polyamine and water to obtain a mixed solution; and transferring the mixed solution into a high-pressure reaction kettle, sealing, carrying out hydrothermal reaction at 110-220 DEG C for 2-9 days, cooling to room temperature to separate out crystals, and filtering, washing and drying to obtain the metal sulfide adsorbent. The invention also discloses application of the metal sulfide adsorbent in adsorption of iodine and methyl iodide. The metal sulfide adsorbent disclosed by the invention has a good adsorption effect on iodine and methyl iodide, and compared with an ethylenediamine-oriented metal sulfide adsorbent, the diethylenetriamine-oriented metal sulfide adsorbent has higher adsorption capacity on iodine and methyl iodide.

The invention provides near-infrared adjustable double-perovskite type mechanoluminescence fluorescent powder as well as a preparation method and application of the near-infrared adjustable double-perovskite type mechanoluminescence fluorescent powder. The expression general formula of the double perovskite type mechanoluminescence fluorescent powder is Sr2M1-xSbO6: xCr < 3 + >, wherein M is Al, Ga, Sc, In or Y; x is equal to 1%-7%. The preparation process of the fluorescent powder comprises the following steps: a, weighing strontium carbonate, an oxide of M, antimony pentoxide and chromium sesquioxide according to the element proportion in the chemical general formula Sr2M1-xSbO6: xCr < 3 + >; b, mixing the weighed raw materials, and uniformly grinding to obtain a mixture; and c, carrying out high-temperature calcination on the obtained mixture to obtain the near-infrared adjustable double perovskite type mechanoluminescence fluorescent powder. By regulating and controlling the components of the substrate, the emission main peak can be adjusted from 780nm to 946nm. The fluorescent powder provided by the invention can show a self-recovery near-infrared stress luminescence characteristic without pre-irradiation under continuous stress stimulation, is simple to prepare and convenient for industrial batch production, and has a wide application prospect.

The invention relates to a preparation method of antimony pentafluoride, which comprises the following steps: preheating raw material gas nitrogen trifluoride, placing nitrogen trifluoride and antimony powder in a tubular furnace reactor made of a specific material, carrying out gradient heating reaction at 300-400 DEG C under the condition that the antimony powder is distributed by adopting a multi-layer nickel plate tiled structure, carrying out reaction for 10-40 seconds, and carrying out solid filtration through a filter after the reaction is completed, so as to obtain the antimony pentafluoride. And carrying out cold trap collection to obtain an antimony pentafluoride product. The diameter of the reactor is made of a nickel material or Monel to prevent corrosion of antimony pentafluoride, the number of tiled layers of nickel plates is r / 5-r / 10, the contact area is increased, the reaction yield is increased, and the utilization rate of the raw material nitrogen trifluoride is increased.

The invention provides a preparation method of high-purity antimony trichloride and high-purity antimony, and belongs to the technical field of chemical production processes. The method provided by the invention comprises the following steps: carrying out chlorination reaction on antimony particles in top-blown chlorine-containing gas, side-blown chlorine-containing gas and bottom-blown chlorine-containing gas to obtain antimony trichloride gas; the top-blown chlorine-containing gas, the side-blown chlorine-containing gas and the bottom-blown chlorine-containing gas are mixed gas of chlorine and shielding gas; condensing and crystallizing part of the antimony trichloride gas in sequence to obtain high-purity antimony trichloride; the rest antimony trichloride gas is subjected to a reduction reaction in bottom blowing hydrogen-containing gas, and high-purity antimony is obtained; the hydrogen-containing gas is mixed gas of hydrogen and protective gas. According to the method, the uniformity and efficiency of the chlorination reaction can be effectively controlled in a top-side bottom-blowing multi-point gas inlet mode, high-purity antimony trichloride and high-purity antimony are obtained, the antimony trichloride preparation process is greatly simplified, and the method is suitable for industrial production.

The utility model discloses a continuous production device of antimony pentafluoride, which relates to the technical field of chemical equipment, and is characterized in that an antimony bin is connected with an antimony temporary storage tank, the lower part of the antimony temporary storage tank is connected with the top of a reactor, a fluorine gas input port is arranged at the lower part of the reactor to input fluorine gas for the reactor, and a guide cylinder is arranged in the reactor; the antimony temporary storage tank is connected with a nitrogen tank, nitrogen is input and then air replacement is carried out, fluorine and antimony particles input into the reactor by the antimony temporary storage tank react in the reactor to generate a reaction product, the reaction product is output to the product storage tank through a reaction product outlet formed in the middle of the reactor, and the reaction product is cooled by the condenser and then stored in the product storage tank. The space of the reactor is divided into a reaction zone, a gas-liquid separation zone and a liquid circulation zone by the guide cylinder, the guide cylinder is provided with a heat exchanger for controlling the reaction progress of the reactor, antimony particles are added into the reactor after being replaced by nitrogen, and the reaction system is low in impurity content, few in side reaction and high in product purity.

The invention discloses a preparation method and a preparation system of nano metal oxide powder. The preparation method comprises the following steps: adding a batch of metal blocks into a smelting furnace to form metal liquid after smelting, the metal liquid enters a plasma furnace through a connecting pipe, and when the metal liquid levels in the smelting furnace and the plasma furnace reach a set height; turning on a plasma gun arranged on the top of a plasma cover, the plasma gun gasifies the metal liquid in the plasma furnace into gaseous metal, air enters the plasma cover during the gasification process, the gaseous metal and the air undergo oxidation reaction to obtain metal oxide, the metal oxide enters a powder collector driven by the air and is quickly cooled to obtain nano metal oxide; while turning on the plasma gun, metal blocks are added into the smelting furnace through a feeder, and the adding speed of the metal blocks is controlled by the feeder to maintain the metal liquid level change in the smelting furnace and the plasma furnace within ±5 mm.

Described are luminescent components with excellent performance and stability. The luminescent components comprise a first element 1 including first luminescent crystals 11 from the class of perovskite crystals, embedded a first polymer P1 and a second element 2 comprising a second solid polymer composition, said second polymer composition optionally comprising second luminescent crystals 12 embedded in a second polymer P2. Polymers P1 and P2 differ and are further specified in the claims. Also described are methods for manufacturing such components and devices comprising such components.

The invention relates to a sulfur-antimony-lanthanum-barium compound, a sulfur-antimony-lanthanum-barium mid-far infrared birefringent optical crystal and a preparation method and application thereof, relates to a mid-far infrared birefringent crystal and a preparation method and application thereof, and aims to solve the problem of low birefringence of the existing mid-far infrared crystal, the sulfur-antimony-lanthanum-barium compound has the chemical formula of Ba2La2Sb4S10 (S2) and the molecular weight of 1424.22, is crystallized in a monoclinic system, and has the molecular weight of 294nm. The space group is P21 / c, and the cell parameters are as follows: a = 8.6373 (5), b = 14.7336 (9), c = 15.9161 (9), alpha = gamma = 90 degrees, and beta = 92.661 (2) degrees. Preparing a compound or a polycrystal material by using a high-temperature solution or a solid-phase method; a polycrystalline material is used for growing a single crystal, the birefringence of the single crystal is 0.53 at the position of 1064 nm, the single crystal has large birefringence within the range of 1-14 microns, and the single crystal is used in an optical isolator, a circulator, a beam shifter, an optical polarizer or an optical modulator.

The application relates to the field of inorganic materials, in particular to a kind of antimony trioxide and its preparation method and application, comprising: preparing PS-b-PVP copolymer template; PS-b-PVP copolymer template is immersed in treatment in antimony salt and ammonia water in turn; pyrolysis under inert gas protection, the antimony trioxide prepared in the application has unique nanotubular structure, effectively shortens the transmission path of lithium ion and electron, significantly inhibits the pulverization and structure collapse of electrode material in the charging and discharging process, thereby endowing it with high specific capacity and excellent cycle stability.

A solid electrolyte, a method of manufacturing the same, and a lithium battery including the solid electrolyte. The solid electrolyte may include a solid ion conductor represented by Formula 1:LiaBbAlmQnOcXd  Formula 1wherein, in Formula 1, Q is an element that has an ionic radius that differs from an ionic radius of Al by less than 30% and has +3 and +5 valence states, X is at least one of F, Cl, Br, or I, 3.5≤a≤4.5, 3≤b<5.2, 1≤m≤3, 0<n<2, 11≤c≤13, and 0<d≤1.5.

The application belongs to the technical field of novel inorganic two-dimensional material preparation, and particularly relates to a method for efficiently and controllably preparing antimony oxide ene in pure water by using a liquid-phase ultrasonic exfoliation method. The method uses high-purity antimony particles as raw materials, and uses a simple liquid-phase exfoliation method to exfoliate the antimony powder to obtain few-layer antimony oxide ene. The preparation method is green, environmentally friendly, simple and easy to operate, can greatly reduce the preparation cost, and the prepared antimony oxide ene has the characteristics of high quality, good dispersity, high yield and high oxidation degree, so as to overcome the technical defects of the prior art method, such as relatively poor quality of the antimony oxide ene sample and environmental pollution in the preparation method.

Provided are a novel magnesium composite oxide or calcium composite oxide, and a method for producing same.　The production method is for producing a composite oxide containing magnesium or calcium, and includes: a heating step for heating a precursor compound at a temperature of 500ºC or lower in the presence of a salt that contains magnesium or calcium; and a washing step for washing with a washing liquid that includes water after the heating step. A combination of the precursor compound and the composite oxide is any of (A) to (E).

The preparation method of the antimony trioxide with the porous structure comprises the following steps: adding an antimony trioxide matrix into a montmorillonite loading agent which is 5-8 times of the total amount of the antimony trioxide matrix, stirring, carrying out suction filtration, and drying to obtain the antimony trioxide with the porous structure. An antimony trioxide matrix is constructed by adopting a double emulsion template method, meanwhile, montmorillonite is pretreated, interlayer water is damaged by preheating at 210-230 DEG C, then the temperature is increased to 350 DEG C, heat preservation is performed for 1 h, an interlayer structure is stripped through thermal expansion, the specific surface area is increased, more active sites are exposed, and the specific surface area is increased. And dopamine / carbon nanotube composite modification: dopamine hydrochloride is subjected to self-polymerization under a weakly alkaline condition to form a polydopamine (PDA) coating layer.

The present invention describes a solid-state material having ionic conductivity for lithium ions, a method for preparing said solid-state material, a method for using said solid-state material as a solid electrolyte for an electrochemical cell, a solid-state structure selected from the group consisting of a cathode, an anode, a separator for an electrochemical cell comprising the solid-state material, and an electrochemical cell comprising such a solid-state structure.

The application provides a preparation method of a sulfur-selenium antimony solar cell with a uniform absorption layer component gradient. The optimization scheme for improving the longitudinal component distribution uniformity of the Sb2(S,Se)3 thin film and the band matching of the Sb2(S,Se)3 device by using a low-cost triethanolamine complexing agent solves the problems of the non-ideal longitudinal component gradient of the absorption layer caused by the too fast reaction precipitation in the hydrothermal reaction system. 2+ Sb 3+ reaction precipitation.

A synthesis method of active antimony sulfide for gaseous radioactive iodine adsorption comprises the following steps: S1, mixing inorganic compound powder A, macrocyclic polyamine B and sulfur powder, putting the mixture into a container, and adding deionized water to obtain a mixture; s2, carrying out ultrasonic treatment on the mixture treated in the step S1, putting the mixture into a drying oven, and reacting for a certain time; and S3, after the reaction is finished, cooling to room temperature, filtering a product, and respectively washing with deionized water, a reagent G and a reagent F to obtain the three-dimensional framework active inorganic antimony sulfide. Through solvothermal reaction, the organic amine structure guiding effect is combined with ultrasonic vibration, the accumulation mode of the anion layer is directly influenced, then layered or open-frame crystals are formed, finally, a three-dimensional metal frame structure is formed, and the iodine adsorption saturation capacity is high.

The invention relates to the field of inorganic materials, in particular to a preparation method and application of antimony trioxide, an emulsifier, a water phase and mineral oil are mixed to obtain W / O emulsion, after the W / O emulsion is irradiated by ultraviolet light, an alcohol phase containing an organic antimony precursor is added, after stirring reaction, standing, centrifugation, sediment collection, washing and calcination are performed, and the antimony trioxide is obtained. The antimony trioxide prepared by the method provided by the invention has a special hollow porous microstructure structure, and is a very potential pseudocapacitor electrode material.

The invention discloses a method for comprehensively recycling high and low boiling residues and waste acid in the production process of high-purity antimony, and relates to the field of non-ferrous metal metallurgy. The method comprises the following steps: mixing high and low boiling residues produced in the preparation process of high-purity antimony with waste acid produced by cleaning equipment, spraying the mixed solution into a roasting tower through compressed air for roasting, and enabling roasted flue gas to sequentially pass through a settling chamber, a bag collector and a two-stage water spraying absorption tower to respectively produce antimony white and hydrochloric acid, the produced antimony white can be directly sold or used as an antimony smelting raw material, and the byproduct hydrochloric acid can be used as an acid for wet smelting or can be further concentrated into 35-38% concentrated hydrochloric acid. The method can realize gradient recycling of antimony and chlorine elements in the high and low boiling residues and the waste acid, has the characteristics of high resource utilization level and no generation of a large amount of wastewater, and has good economic value and environmental protection benefit.

To provide metal oxide fine particles capable of forming a metal oxide film having excellent heat shielding properties and visible light transmittance, and a metal oxide fine particle dispersion.SOLUTION: In a transmission spectrum measured when a dispersion liquid dispersed at a concentration of 0.7 mass% in a dispersion medium is placed in a 1 mm cell, a slope k1 obtained by linear approximation using the least squares method in a wavelength range from 290 nm to 330 nm is within a range of 0.90 or more and 1.60 or less. In a transmission spectrum measured when a dispersion liquid dispersed at a concentration of 0.7 mass% in a dispersion medium is placed in a 1 mm cell, a slope k2 obtained by linear approximation using the least squares method in a wavelength range from 310 nm to 330 nm is within a range of 0.95 or more and 2.30 or less.SELECTED DRAWING: None

To provide a lithium compound for a solid electrolyte that excels in ion conductivity, charging / discharging stability and thermodynamic stability.SOLUTION: A solid ion conductor comprises a compound crystal whose formula consists of at least one selected from the group consisting of Na5-2xAl1-xVxS4, Na5-2xAl1-xTaxS4 and Na5-2xIn1-xSbxS4, 0.375≤x≤0.625.SELECTED DRAWING: Figure 1

Provided are: a proton-conducting solid electrolyte which is capable of exhibiting high proton conductivity and stability in a low-temperature and medium-temperature range; an electrolyte layer which uses the proton-conducting solid electrolyte; and a battery. As an example, a proton-conducting solid electrolyte, an electrolyte layer, and a battery are represented by the general formula Ba1-alphaSc1-xMoxO3-[delta] Hy (where alpha is-0.2-0.2, x is 0.1-0.3, y is 0-1-3x, and [delta] is 0-1 / 2-3x / 2), or are represented by the general formula BaSc1-xMoxO3-[delta] Hy (where x is 0.15-0.25, y is 0-1-3x, and [delta] is 0-1 / 2-3x / 2), etc.

Provided are a novel magnesium composite oxide or calcium composite oxide, and a method for producing same.　The production method is for producing a composite oxide containing magnesium or calcium, and includes: a heating step for heating a precursor compound at a temperature of 500ºC or lower in the presence of a salt that contains magnesium or calcium; and a washing step for washing with a washing liquid that includes water after the heating step. A combination of the precursor compound and the composite oxide is any of (A) to (E).

The application provides an N-type thermoelectric material formed based on TiNiSb and Fe element, and the chemical formula is TiNiFe x Sb, and the value range of x in the chemical formula is 0.4<=x<=0.5. The application provides a preparation method of TiNiFe x Sb material, so that the prepared sample has good stability. TiNiFe x Sb is a non-toxic and environment-friendly material, and the raw material cost is low. Compared with a TiNiSb matrix, the thermal conductivity is significantly reduced, and the electrical performance is obviously improved, so the sample has excellent thermoelectric performance in the whole temperature range. Since the sample is an alloy sample, a stable preparation scheme is the key of the application. Therefore, a method combining high-energy ball milling and high-temperature annealing is adopted. The final test of the sample of the application includes judging whether the sample is a pure phase without impurities by using XRD, testing the electrical conductivity and the Seebeck coefficient by using ZEM, testing the thermal conductivity by using LFA-457, and finally obtaining the thermoelectric performance of the sample.

What is provided are a proton-conducting solid electrolyte which can exhibit high proton conductivity and stability in a low-temperature range and a medium-temperature range, an electrolyte layer formed of the proton-conducting solid electrolyte, and a battery. As an example, a proton-conducting solid electrolyte represented by a general formula: Ba1-αSc1-xMoxO3-δHy, in which α is −0.2 to 0.2, x is 0.1 to 0.3, y is 0 to 1-3x, and δ is 0 to ½-3x / 2, a proton-conducting solid electrolyte represented by a general formula: BaSc1-xMoxO3-δHy, in which x is 0.15 to 0.25, y is 0 to 1-3x, and δ is 0 to ½-3x / 2, or the like; an electrolyte layer, and a battery are provided.

The invention provides a solid-state electrolyte, a solid-state battery and a preparation method of the solid-state electrolyte, and belongs to the technical field of secondary batteries, the solid-state electrolyte comprises Li < 4 + / -x-y > Ay (M1aM2bM3c) S < 4-delta > X delta, 0 < = x < = 1.5, 0 < = y < = 1.5, and y < = 4 + / -x; 0.4 < = a < = 0.8, 0.1 < = b < = 0.4, 0.1 < = c < = 0.3, a + b + c = 1, and 0 < = delta < = 1; a comprises at least one of Na and K; m1 comprises at least one of Ge, Sn, Si, P, As and B; m2 comprises at least one of Sb, Nb, Ta, V, Mo, W, Ti, Zr, Hf and Re; m3 comprises at least one of Al, Ga, In, Bi, Pb, Mg, Ca, Zn, Cd, Y, Sc, La, Ba, Sr, Ce and Sm; and X comprises at least one of O, Se and Te. The solid electrolyte has good glassy state forming ability, thermal stability and mechanical structure stability, can maintain self structure and performance stability in processing and using processes, and ensures long-term stable exertion of battery cycle and rate performance.

The present invention relates to a filler and to the use thereof in obtaining compounds of at least a fluoropolymer and / or the PEEK polymer (polyether ether ketone). The present invention further relates to a composition comprising said filler and at least one fluoropolymer and / or the PEEK polymer. The present invention further relates to a semi-finished or finished product consisting at least in part of the composition comprising said filler and at least one fluoropolymer and / or the PEEK polymer.

The utility model is applicable to the field of metal metallurgy, and provides oxidation-strengthened sodium pyroantimonate wet smelting equipment, which comprises a bottom frame, a reaction box and a top cover, the upper end of the bottom frame is fixedly connected with the reaction box, the upper end of the reaction box is hinged with the top cover, the top cover is provided with a liquid inlet pipe, the liquid inlet pipe is used for injecting an oxidizing agent into the reaction box, and the liquid inlet pipe is connected with the reaction box. A dispersing assembly is arranged in the reaction box in a matched mode, the dispersing assembly is used for dispersing an oxidizing agent injected from the liquid inlet pipe, stirring equipment is arranged at the bottom end in the reaction box in a matched mode, the outer wall of the reaction box is wrapped with a waterproof shell, and a cavity between the reaction box and the waterproof shell is filled with a cooling agent; a temperature control assembly is connected to the waterproof shell in a matched mode and used for controlling the temperature of a cooling agent in the waterproof shell. The reaction kettle has the advantages that an oxidizing agent and raw materials are quickly and uniformly mixed, the reaction efficiency is improved, and the temperature of reactants is effectively controlled.