36results 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.

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.

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.

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 solvothermal synthesis method for a FTO conductive material. The solvothermal synthesis method comprises the following steps: dissolving a tin salt in an alcohol solvent and then adding an oxidizing agent and fluoride to prepare solvothermal mother liquor; adding elemental tin, stannous oxide or stannous hydroxide to solvothermal mother liquor, carrying out thorough mixing, and transferring all the materials into a closed pressure vessel with high corrosion resistance; heating the closed pressure vessel and performing a solvothermal reaction at 110-290 DEG C for 0.5-96hours, wherein the reaction can be completed at a single temperature at a time or be completed in stages at different temperatures; and after the solvothermal reaction is completed, cooling the obtained material to room temperature, washing the material with water, and then drying the material at 50 to 220 DEG C to obtain the FTO conductive material.

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 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.

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.

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 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 relates to a refining method of stannous fluoride. The refining method comprises the following steps: mixing a stannous fluoride crude product, an antioxidant and an organic solvent to obtain a mixture; crystallizing the mixture, then filtering, collecting a solid, and drying to obtain a stannous fluoride refined product; wherein the mass of the antioxidant accounts for 1%-5% of themass of the stannous fluoride crude product. The method is simple in process, low in implementation cost, stable in product, high in purity, controllable in quality and easy to industrialize.