37results about "Tin halides" patented technology

This invention discloses hollow CdS, CdSe or CdTe nanoring, which has hexagonal structure. The outer diagonal length is 200-260 nm, and the inner diagonal length is 50-70 nm. The hollow CdS or CdSe nanoring has a hexagonal phase, while the hollow CdTe nanoring has a cubic phase. The CdS, CdSe or CdTe nanoring can be used to fabricate biosensors or microelectronics. This invention also discloses a method for preparing hollow CdS, CdSe or CdTe nanoring.

The present invention relates to a perovskite type compound preparation method, which uses a four-step method, and specifically comprises CsSnX3(Cs2SnX6) synthesis, CsSnX3(Sn) synthesis, removal of tin from CsSnX3(Sn), and high purity CsSnX3 preparation. The invention further provides a CsSnX3 liquid preparation and sealing method. According to the present invention, a purpose of the present invention is to solve the problems of expensive raw materials, harsh process conditions, impure product and difficult separation of the current CsSnX3 preparation method; and the high quality product can be obtained without the high purity raw material and the harsh purification process, the process is simple, and the method is suitable for laboratory preparation, and is further suitable for industrial mass production.

This disclosure relates to a method for detecting at least one analyte in a tetrachloride sample comprising titanium, tin or silicon tetrachloride; comprising,(a) adding a mixture of water and acid, typically hydrochloric acid, to the sample under conditions effective for forming an aqueous solution of the sample;(b) introducing the aqueous solution of the sample into an inductively coupled mass spectrometer having a cell selected from the group of a reactive cell and a collision cell or both and producing an analyte ion comprising an interfering species;(c) contacting the analyte ion with a gas to produce a product which is substantially free from the interfering species; and(d) detecting and measuring at least one signal from the analyte in the solution. This disclosure further relates to a method for making an aqueous titanium, tin or silicon tetrachloride sample suitable for analysis in using inductively coupled plasma mass spectroscopy.

This invention pertains to particulate thermally reflective phase change material that includes an encapsulated phase change material coated with a thermally reflective layer.

The invention discloses a Te-doped A2SnCl6 perovskite material and a preparation method thereof. In the Te-doped A2SnCl6 perovskite material, A = Cs, Rb and K, a cesium-containing compound, a rubidium-containing compound, a potassium-containing compound, a tin-containing compound and a tellurium-containing compound are used as reaction reagents, and concentrated HCl is used as a solvent; the Te-doped A2SnCl6 perovskite material is prepared, and the influence of the temperature on the luminous efficiency of the A2SnCl6 perovskite material is explored. The Te-doped A2SnCl6 perovskite material prepared by adopting a solvothermal method is good in crystallization, high in quality, capable of being rapidly synthesized in quantity and simple and controllable in process, doping of different concentrations can be effectively realized by adjusting the feeding ratio of Te / Sn, and the Te-doped A2SnCl6 perovskite material has good repeatability..

The invention discloses a P type doped ZnSxSe1-x nano material and a preparation method thereof. A doping source of P type doping is selected from one or several of AgS, CuS, NH3 and PH3. According to the P type doped ZnSxSe1-x nano material and the preparation method thereof, a chemical vapor deposition method is adopted, the P type doped ZnSxSe1-x nano material is synthesized by utilizing a gas-liquid-solid growth mechanism, and the ZnSxSe1-x nano material with different components can be obtained by adjusting the proportion of raw materials of ZnSe and ZnS; and the electric conductivity ofthe nano material obtained by preparation can be adjusted by adjusting the doping quantity, so that the characteristics of controllable components and adjustable electric conductivity of the P type doped ZnSxSe1-x nano material are realized.

A method for preparing stannous fluoride by sing hydrofluoric acid. The method uses hydrofluoric acid and stannous oxide as raw materials, and includes the following steps: (1) first adding hydrofluoric acid into a reactor, staring to stir, then adding a tin granular package in the equivalent of 8-12 wt% of the theoretical amount of stannous oxide, then adding the theoretical amount of stannous oxide into hydrofluoric acid at a speed of 15-25g / min, after material addition, continuing the reaction for 15-30 min, and after the reaction, removing the tin granular package; and from the addition of stannous oxide to the end of the reaction, introducing nitrogen into hydrofluoric acid, wherein the flow is controlled that no liquid spills; and (2) heating to 75-95 DEG C, maintaining the temperature, stirring for concentrating, and conducting vacuum drying to obtain a finished product. The stannous fluoride prepared by the method provided by the invention has low cost, high product yield and high purity.

Agents for surface treatment which can impart excellent corrosion resistance to zinc or zinc alloy products at low cost. The agents for the surface treatment of zinc or zinc alloy products of this invention include at least one water-soluble compound which contains antimony, bismuth, tellurium or tin. Ideally, a nickel salt and / or a manganese salt is also included, and most desirably tannins and / or thioureas are also included. Ideally, the zinc or zinc alloy products which have been immersed and treated in an aqueous solution which contains these agents for surface treatment are immersed in an aqueous solution which includes a sealing treatment agent selected according to the colour of the zinc or zinc alloy product to seal pinholes.

A light valve containing ABX 3 perovskite particles (200) suspended in a liquid suspension (300) that can control light transmittance is provided. The preferable ABX 3 perovskite particles (200) are halide ABX 3 perovskite particles wherein A is at least one of Cs +, CH 3NH 3 +, and Rb +, B is at least one of Pb 2+, Ge 2+, and Sn 2+, and X is at least one of Cl-, Br-, and I-. Use of the light valve in the manufacture of a light control device and a method of controlling light transmittance by using the light valve are also provided.

The present invention provides a light valve containing ABX3 perovskite particles; more specifically is related to a light valve containing halide ABX3 perovskite particles that can control light transmittance. The preferable halide ABX3 perovskite particles in this invention consist of A being at least one of Cs+, CH3NH3+, and Rb+, B being at least one of Pb2+, Ge2+, and Sn2+, and X being at least one of Cl−, Br−, and I−. This kind of halide ABX3 perovskite particles were suspended in a liquid suspension to make a light valve with a light transmittance control, which discloses a completely new application for ABX3 perovskite materials.

Disclosed herein is a zero-dimensional hybrid organic-inorganic perovskite material of Formula (I) wherein A contains at least one aromatic or heteroaromatic ring, M is selected from Ge, Pb, Sn, Mn, Cu, Co, and Eu, and X is a halide or pseudohalide. Preferably, M is Sn, and the organic part is meta-xylenediammonium. Also disclosed herein is a method of preparing said materials and the use of saidmaterials for white light emitting devices.

The invention provides a method for preparing stannous fluoride from stannic oxide. The method comprises steps as follows: stannic oxide, a fluorinating agent and a reducing agent are taken as raw materials, toluene is taken as a water-carrying agent, after toluene which is 1-4 times the weight of stannic oxide is added, stannic oxide is added at a certain stirring speed, the materials are heatedto 80-85 DEG C, then the fluorinating agent and the reducing agent are slowly added, the reaction system is kept at the temperature of 80-85 DEG C after addition, backflow is controlled, toluene-waterazeotrope is removed out of the reaction system by an oil-water separator, the temperature is preserved for 5-7.5 h, the materials are filtered, cyclohexane is added for washing a filter cake, the washed filter cake is filtered, transferred into a drying device and dried under the conditions of temperature being 50-80 DEG C and pressure being 5-20 kPa, and stannous fluoride is obtained. The process of the preparation method is simple, by means of formation of the toluene-water azeotropic system, water is removed out of the reaction system, generated stannous fluoride and water are prevented from reacting and generating stannous oxyfluoride, and stannous fluoride with content higher than 99% and residual impurity quantity lower than 0.005% is obtained and is particularly suitable for beingused for fine chemical engineering.

The invention belongs to the technical field of alloy waste material recovery and utilization, and discloses a method for recovering anhydrous indium salt and anhydrous tin salt from indium tin oxide. The method comprises the following steps that S1, the indium tin oxide is dissolved by acid; indium and tin exist in the acid in an ion form; S2, the acid is removed through distillation; an indium salt hydrate and a tin salt hydrate are left; S3, a dehydrating agent is added into the hydrates in the S2; heating reflux is performed to obtain the anhydrous indium salt and the anhydrous tin salt; S4, the anhydrous indium salt and the anhydrous tin salt are separated. The method disclosed by the invention has the advantages that the product with extremely high purity can be obtained; all used reagents can be almost cyclically used; no pollution is generated on the environment; less energy and fewer reagents are consumed by the method; the method can be stably used for large-scale industrial practice; a large amount of energy can be saved; the operation is simple and convenient; the extremely high economic performance is realized.

This disclosure relates to a method for detecting at least one analyte in a tetrachloride sample comprising titanium, tin or silicon tetrachloride; comprising,(a) adding a mixture of water and acid, typically hydrochloric acid, to the sample under conditions effective for forming an aqueous solution of the sample;(b) introducing the aqueous solution of the sample into an inductively coupled mass spectrometer having a cell selected from the group of a reactive cell and a collision cell or both and producing an analyte ion comprising an interfering species;(c) contacting the analyte ion with a gas to produce a product which is substantially free from the interfering species; and(d) detecting and measuring at least one signal from the analyte in the solution. This disclosure further relates to a method for making an aqueous titanium, tin or silicon tetrachloride sample suitable for analysis in using inductively coupled plasma mass spectroscopy.

This invention discloses a solution based synthesis of cesium tin tri-iodide (CsSnI3). More specifically, the CsSnI3 is fabricated in an organic Perovskite precursor solvent. CsSnI3 are ideally suited for a wide range of applications such as light emitting and photovoltaic devices.

The present invention is directed to an organic polymerizable composition for producing a molded polymeric article. The composition includes a mold release agent of ionic fluoride and / or ionic fluoride precursor present in an amount sufficient to effect at least partial demolding of the polymeric article from a mold. Molded articles also are provided.

To provide a complex which contains a tin ion (Sn<2+>) or a bismuth ion (Bi<3+>) with a high purity and is suitable for the production of a lead-free perovskite compound. A complex which is represented by general formula (1A):SnX<n>.(m)L. (In the formula, X represents at least one halogen atom; L represents a polar solvent molecule; n represents a number of 1.5-2.5; and m represents a number of 0.3-1.9.)

According to the embodiments of the present invention, a gel is provided. The gel has a composition including clay nanoparticles and a halide perovskite material of the general formula AMX3, where A may be an organic or inorganic ion, M may be a metal cation or element, and X may be a halogen anion or element, such as methylammonium lead iodide (CH3NH3Pbl2). According to further embodiments of thepresent invention, a method of forming a gel, a photovoltaic device and a method of forming a photovoltaic device are also provided.

A process for recovering a metal chloride or mixed metal chloride from a solid waste material comprising recoverable metal containing constituents produced by lead, copper or zinc smelting and refining processes, said process comprising the steps of: (i) heating the solid waste material; (ii) treating the heated material of step (i) with a gaseous chloride to form a gaseous metal chloride containing product; and (iii) treating the gaseous metal chloride containing product of step (ii) to recover the metal chloride or mixed metal chloride. The metal chloride may be further treated to extract the metal itself.

The invention relates to a preparation method of stannous fluoride. The preparation method comprises the following steps: mixing a hydrofluoric acid aqueous solution and stannous sulfate to obtain a hydrofluoric acid solution of stannous sulfate; and adding barium fluoride into the hydrofluoric acid solution of stannous sulfate, reacting to obtain a hydrofluoric acid solution of stannous fluoride,filtering, concentrating an obtained filtrate, and drying to obtain stannous fluoride. According to the method, a brand-new reaction route is adopted, the prepared stannous fluoride product is high in yield and purity, the production cost is low, and the technological process is simple.

The invention discloses a preparation method of stannous fluoride.The method comprises the steps that a material containing tin dioxide, a material containing calcium fluoride and sodium carboxymethylcellulose are ground, smashed, mixed and then placed in a CO-CO2 mixed atmosphere to be calcined at the temperature of 500 DEG C-1,000 DEG C, and stannous fluoride is recycled from calcination flue gas.Compared with an existing stannous fluoride preparation technology, the method has the advantages that operation is easy, convenience and environmental protection are achieved, the cost is low, and prepared stannous fluoride is high in purity and low in impurity content.

A complex has a structure of formula (1A): SnXn·(m)L, wherein X is at least one type of halogen atoms, L is a polar solvent molecule, n is a value from 1.5 to 2.5, and m is a value from 0.3 to 1.9. A perovskite compound has a structure of formula (2A): RSnXj, wherein Sn has an oxidation number from 1.5 to 2.5, R is at least one type of a monovalent cation, X is at least one type of halogen atoms, and j is a value from 2.5 to 3.5, and the perovskite compound is free of tin oxide; or a perovskite compound has a structure of formula (2B): R2M2BiX1, wherein R is at least one type of a monovalent cation, X is at least one type of halogen atoms; M2 is a monovalent metal, and i is a value from 5.0 to 7.0.

The present invention relates to an apparatus and a method for decreasing perfluorinated compounds (PFCs) and generating tin fluoride and, more specifically, to an apparatus and a method for decreasing PFCs and generating tin fluoride, the apparatus and the method having the purpose of efficiently decreasing PFCs, which are global warming gases, and simultaneously generating tin fluoride which isa high-value material. The present invention provides the apparatus for decreasing PFC and generating tin fluoride, comprising: a reaction part having liquid tin (Sn) accommodated therein; and a material injection part for injecting PFCs into the reaction part, wherein the PFCs and the liquid tin react so as to generate tin fluoride (SnF2) in the reaction part.

The invention belongs to the technical field of alloy waste material recovery and utilization, and discloses a method for recovering anhydrous indium salt and anhydrous tin salt from indium tin oxide. The method comprises the following steps that S1, the indium tin oxide is dissolved by acid; indium and tin exist in the acid in an ion form; S2, the acid is removed through distillation; an indium salt hydrate and a tin salt hydrate are left; S3, a dehydrating agent is added into the hydrates in the S2; heating reflux is performed to obtain the anhydrous indium salt and the anhydrous tin salt; S4, the anhydrous indium salt and the anhydrous tin salt are separated. The method disclosed by the invention has the advantages that the product with extremely high purity can be obtained; all used reagents can be almost cyclically used; no pollution is generated on the environment; less energy and fewer reagents are consumed by the method; the method can be stably used for large-scale industrial practice; a large amount of energy can be saved; the operation is simple and convenient; the extremely high economic performance is realized.

The present invention relates to a preparation method of stannous fluoride. The preparation method comprises the following steps: mixing an aqueous hydrofluoric acid solution and stannous sulfate to obtain a hydrofluoric acid solution of stannous sulfate; adding barium fluoride to the hydrofluoric acid solution of stannous sulfate, and reacting to obtain a fluoride solution The stannous hydrofluoric acid solution is filtered, and the filtrate is concentrated and dried to obtain stannous fluoride. The above method adopts a brand-new reaction route, and the prepared stannous fluoride product has high yield and purity, low production cost and simple technological process.

The invention provides a method for preparing stannous fluoride from tin dioxide. The method is to use tin dioxide, a fluorinating agent and a reducing agent as raw materials, use toluene as a water-carrying agent, and first add tin dioxide by weight 1- After 4 times of toluene, add tin dioxide at a certain stirring speed, heat the material to 80-85°C and then slowly add fluorinating agent and reducing agent. After the addition, keep the reaction system at 80-85°C, control reflux and separate oil and water The toluene-water azeotrope is removed from the reaction system, kept warm for 5-7.5 hours, filtered the material, added cyclohexane to wash the filter cake, filtered the washed filter cake and transferred to the drying equipment, at 50-80 ° C, 5 Dry under the condition of ‑20kPa to obtain stannous fluoride. The preparation method of the present invention has a simple process. By forming a toluene-water azeotropic system, water is removed from the reaction system to avoid the reaction of the generated stannous fluoride and water to form stannous oxyfluoride, and the obtained content is greater than 99%, and the amount of residual impurities is The stannous fluoride less than 0.005% is especially suitable for use in fine chemicals.

The present invention relates to a kind of preparation method of perovskite type compound, adopts four-step method, comprises the synthesis of CsSnX3 (Cs2SnX6), the synthesis of CsSnX3 (Sn), the removal of tin in CsSnX3 (Sn), the preparation of high-purity CsSnX3, in addition A preparation and sealing method of a cesium trihalide tin cesium CsSnX3 liquid is also proposed. The invention solves the problems of expensive raw materials, harsh process conditions, impure products and difficult separation in the current preparation method of trihalide tin cesium CsSnX3, and can obtain high-quality products without using high-purity raw materials and harsh purification processes. And the process is simple, not only suitable for laboratory preparation, but also suitable for industrial batch production.