25results about "Tin compounds" patented technology

The invention discloses a high-entropy perovskite hydroxide, a preparation method thereof and application of the high-entropy perovskite hydroxide in electro-catalysis of nitrate to synthesize ammonia, and belongs to the technical field of high-entropy perovskite hydroxides. The high-entropy perovskite hydroxide is ASn (OH) 6, and A is one or more of Zn, Mn, Co, Ni and Cu. The high-entropy perovskite hydroxide electrocatalyst which is simple in synthesis method, stable in structure and easy in raw material obtaining is obtained, the electrocatalyst can be applied to electrocatalysis of nitrate to synthesize ammonia, the highest NH3 Faraday efficiency is 98.16%, and the yield is 5.12 mg h <-1 > mgcat <-1 >. And a foundation is laid for developing other high-entropy perovskite compounds as electrocatalysts for electrocatalytic synthesis of nitrate.

This disclosure provides systems and methods for purifying precursor compounds. One method includes one or more of the following steps: mixing a crude product solution with a first solvent, wherein the crude product solution comprises a precursor compound and at least one impurity; wherein the boiling point of the first solvent is higher than the boiling point of the crude product solution; feeding at least the mixture of the crude product solution and the first solvent into an evaporator; and collecting a distillate comprising the precursor compound from the evaporator, wherein the purity of the precursor compound in the distillate is greater than 95%, as determined by [further steps]. 1 Determined by H NMR. Other methods and systems are presented in this paper.

This invention discloses a SnS / WS2@C composite electrode material, its preparation method, and its application, belonging to the field of tungsten disulfide nanomaterials technology. A precursor solution A is obtained by uniformly dispersing SnCl2·2H2O and CH3CSNH2 in anhydrous ethanol. After a solvothermal reaction, precursor solution A is cooled, centrifuged, washed, and freeze-dried to obtain powder B. Powder B, WCl6, and CH3CSNH2 are uniformly dispersed in anhydrous ethanol to obtain solution C. After a solvothermal reaction, solution C is cooled, centrifuged, washed, and freeze-dried to obtain powder D. Powder D is uniformly dispersed with glucose in deionized water to obtain precursor solution E. After a solvothermal reaction, precursor solution E is cooled, centrifuged, washed, and freeze-dried to obtain powder F. Powder F is calcined at high temperature to obtain the SnS / WS2@C composite electrode material. Performance testing of the prepared SnS / WS2@C composite electrode material revealed that it exhibits good electrochemical performance when used as a negative electrode in potassium-ion batteries.

The application discloses a method for quickly dissolving tin in sulfuric acid, comprising the following steps: S1, preparing two tin blocks, a sulfuric acid solution, a 4V direct current power supply, a wire, a corrosion-resistant reaction container, a heating device and protective articles; S2, checking the power supply and building the device; S3, connecting the two tin blocks with the positive and negative poles of the 4V direct current power supply respectively by the wire, and putting the tin blocks into the container containing the sulfuric acid solution to carry out an electric reaction; S4, after taking out the tin blocks, putting the tin block connected with the positive pole back into the sulfuric acid solution and heating to quickly dissolve the tin block; the tin blocks are pretreated by the 4V direct current, the surface of the positive tin block is electrochemically activated during the electric process, and then the tin block is heated at 60-90 DEG C; compared with a traditional direct heating dissolution mode, the dissolution time of the tin block pretreated by the electric process is obviously shortened, the complete dissolution time of the tin block treated by the electric process under the same condition is obviously lower than that of the untreated tin block, and the production efficiency can be effectively improved.

It provides materials suitable for semiconductor applications such as transistors and diodes. - Using large substrates such as glass to mass-produce highly reliable semiconductor devices. The present invention provides a semiconductor device that can perform the following: an oxide semiconductor film and a gate in contact with the oxide semiconductor film. The present invention provides a semiconductor device having a transistor with a good electronic state at the interface with an insulating film. By providing stable electrical characteristics to transistors using oxide semiconductor films as channels, reliability is improved. To manufacture high-performance semiconductor devices. [Solution] C-axis oriented and triangular or hexagonal when viewed from the direction of the surface or interface A semiconductor device using an oxide material containing crystals that have an atomic arrangement and are rotated around the c-axis.

A method of fabricating a halide perovskite having a general formula of ABX3, wherein A, B, and X are inorganic elements and X is a halide, the method including a vapor-liquid-solid process triggered by a catalyst formed from a noble metal; A nanowire of the halide perovskite and a photoelectronic device thereof.

Methods for producing metal sulfides generally include combining an alkali metal sulfide and a metal halide in an aprotic solvent to produce a mixture that includes an alkali metal halide and a metal sulfide. Additional methods include combining a first alkali metal sulfide, a second alkali metal sulfide, and a metal halide in an aprotic solvent to produce a mixture that includes a first alkali metal halide, a second alkali metal halide, and a metal sulfide. The methods may include adding a second solvent to cause an alkali metal halide to precipitate out of the mixture and improve the purity of the metal sulfide.

Methods for producing metal sulfides generally include combining an alkali metal sulfide and a metal halide in an aprotic solvent to produce a mixture that includes an alkali metal halide and a metal sulfide. Additional methods include combining a first alkali metal sulfide, a second alkali metal sulfide, and a metal halide in an aprotic solvent to produce a mixture that includes a first alkali metal halide, a second alkali metal halide, and a metal sulfide. The methods may include adding a second solvent to cause an alkali metal halide to precipitate out of the mixture and improve the purity of the metal sulfide.

Provided is a method for recovering tin from high-mud-content multi-metal tailings. The method comprises the steps of: 1) grinding high-mud-content multi-metal tailings; 2) performing impurity removal and flotation; 3) obtaining a mixed solution; and 4) performing tin recovery, involving: adding ammonia water to the mixed solution to adjust the pH value to 5.0, performing solid-liquid separation after the reaction has finished, and filtering same to obtain a filtrate containing zinc and lead, and a precipitate; and washing the precipitate with hot water to obtain a tin hydroxide product. The method reduces the interference of impurities on tin recovery, laying an excellent foundation for tin recovery; has good environmental protection advantages; and achieves efficient enrichment of tin.

The application relates to a method for enhancing the nonlinear optical performance of SnS2 nanosheets through electrostatic doping. First, SnS2 nanosheets are prepared on a fluorine-doped tin oxide (FTO) substrate by a chemical vapor deposition method, and then hydrogen ion intercalated SnS2-H + The electrostatic doping causes the band gap to shrink and a strong built-in electric field to be generated, so that the nonlinear optical performance of the material is enhanced. In addition, the saturated absorption response of the material enables the application to an optical neural network as a nonlinear activation function, and exhibits application potential in machine learning tasks. The SnS2-H + The application establishes a promising and convenient nonlinear optical material, and provides new insights for the design exploration and simple synthesis of high-performance nonlinear absorption materials.

This invention discloses a method for preparing Cu4SnS4-rich composite nanoflowers, comprising the following steps: 1) dissolving copper salt in an appropriate amount of ethanol to obtain a copper salt solution; 2) adding tin salt to the copper salt solution and stirring until completely dissolved; 3) dissolving thiourea in an appropriate amount of ethanol to obtain a thiourea solution; 4) mixing the solutions from step 2) and step 3) and stirring to form a gel; 5) sonicating and stirring the gel at a certain temperature to form a dispersed emulsion; 6) transferring the dispersed emulsion to a hydrothermal reactor for a solvothermal reaction; 7) centrifuging or filtering the reaction product and then drying it; 8) heat-treating the dried product in an inert atmosphere to obtain a high-content Cu4SnS4 composite nanoflower with a small amount of Cu. 7.2 The CTS material of S4. The CTS material prepared by this invention has significantly better long-cycle performance and capacity than existing Cu-Sn-S composite materials, and is suitable for further promotion and application.

This application relates to a molybdenum disulfide-carbon-tin disulfide heterostructure, its preparation method, and its application. The molybdenum disulfide-carbon-tin disulfide heterostructure has a nanoflower-like structure, comprising nanoflowers and nanospheres composited on the nanoflowers. The nanospheres are composed of MoS2 / C, and the nanoflowers are composed of SnS2. This composite material exhibits very high capacity and cycle stability, making it suitable for application as a negative electrode material in high-energy-density sodium-ion batteries.

This invention provides a CsSnI3 for perovskite solar cells and its preparation, as well as a perovskite solar cell and its preparation method. The preparation method includes: firstly, mixing SnI2 with tri-n-octylphosphine (TOP) to obtain a SnI2-TOP precursor; then, under a protective atmosphere, secondly mixing the obtained SnI2-TOP precursor, Sn powder, and a Cs-containing active solution to obtain CsSnI3 for perovskite solar cells. In the preparation method of CsSnI3 for perovskite solar cells provided by this invention, by mixing SnI2 with tri-n-octylphosphine (TOP) to obtain the SnI2-TOP precursor, and adding Sn powder during the preparation of CsSnI3 from the SnI2-TOP precursor and the Cs-containing active solution, the content of tetravalent Sn can be minimized, thereby ensuring that the final prepared CsSnI3 for perovskite solar cells has higher carrier lifetime and photoluminescence quantum yield.

Provided is an ITO film 1a in which the work function of a first surface 11 is different from the work function of a second surface 12.

Provided is a photosintering composition including cuprous oxide particles containing at least one additive element selected from the group consisting of tin, manganese, vanadium, cerium and silver, and a solvent. It is preferable that the cuprous oxide particle contain 1 ppm to 30,000 ppm of tin as the additive element. It is also preferable that the photosintering composition contain 3% by mass to 80% by mass of the cuprous oxide particles and 20% by mass to 97% by mass of the solvent.

This invention discloses a class of rare-earth tin-based pyrochlore metal oxides, their preparation methods, and applications, belonging to the field of electrocatalyst technology. Addressing the limitations of traditional tin-based catalysts in the intrinsic activity, low current density, and low selectivity of the electrocatalytic reduction of carbon dioxide to formate, this invention provides a class of rare-earth tin-based pyrochlore metal oxides with the general structural formula A₂B₂O₇, where A is selected from a rare-earth metal ion and B is selected from Sn ions. This invention anchors the Sn active component into the rare-earth pyrochlore lattice via a one-step hydrothermal method, utilizing the A-O-Sn electronic synergistic effect between rare-earth elements and Sn to achieve precise control of the electronic structure and coordination environment of the Sn site, optimizing the key intermediate *OCHO, thereby significantly improving selectivity and split current. The preparation method of the rare-earth tin-based pyrochlore metal oxides in this invention is simple to operate, easy to mass-produce, exhibits excellent CO₂ electroreduction performance, and has good prospects for industrial application.

This method for manufacturing a sulfide solid electrolyte material is characterized by including a starting material mixing step S01 for mixing starting materials, which respectively contain elements that constitute the sulfide solid electrolyte material, so as to obtain a mixed starting material and a generation step S02 for heating the mixed starting material so as to generate the sulfide solid electrolyte material, wherein, in the generation step S02, the heating atmosphere contains a sulfur gas with a controlled partial pressure.

This invention provides a method for producing a high-quality sulfide solid electrolyte material with sufficient ionic conductivity by suppressing the evaporation of sulfur during heat treatment without using hydrogen sulfide gas. [Solution] A method for producing a sulfide solid electrolyte material, comprising: a raw material mixing step S01 of mixing raw materials containing each element constituting the sulfide solid electrolyte material to obtain a mixed raw material; and a production step S02 of heating the mixed raw material to produce the sulfide solid electrolyte material, wherein the production step S02 is characterized in that the heating atmosphere contains sulfur gas with controlled partial pressure.

Methods of flash-within-flash (FWF) Joule heating and the systems thereof. The FWF Joule heating process subjects outer feedstock in an outer vessel to a flash Joule heating process, whereby the flash Joule heating process upon the outer feedstock results in the conversion of inner feedstock within an inner vessel (which inner vessel is within the outer vessel) to a converted material.

Methods for purifying metal sulfides include combining an alkali metal sulfide and composites that include a metal sulfide in an aprotic solvent, filtering undissolved solids from the mixture, and adding a secondary sulfide to the solution to precipitate the highly pure metal sulfide. The purified metal sulfides may be used in the production of solid-state electrochemical cells.