47results about "Sulfide/polysulfide preparation" patented technology

The invention relates to the field of nano materials and photonic crystal materials, in particular to nano particles, preparation of the nano particles and application of the nano particles in self-assembly of three-dimensional non-close-packed photonic crystals. The nanoparticles can be self-assembled into a three-dimensional non-close-packed photonic crystal in a concentration range of 1 wt%-60 wt%. According to the invention, the problem that the self-assembly of the three-dimensional non-close-packed colloid photonic crystal is difficult to realize at low concentration at present is solved. By adjusting the mass fraction of the particles in a solution, the three-dimensional non-close-packed colloidal photonic crystal with rich colors can be formed through self-assembly, and the three-dimensional non-close-packed colloidal photonic crystal has wide application prospects in the fields of sensing, display and the like.

Provided is a production method for semiconductor nanoparticles that can exhibit band edge emission at a short peak emission wavelength. The production method for semiconductor nanoparticles involves obtaining a first mixture that includes a Ag salt, an In salt, a compound that includes Ga and S, and an organic solvent and performing a heat treatment on the first mixture at a temperature of 125°C–300°C to obtain first semiconductor nanoparticles.

Provided is a method for producing a sulfide solid electrolyte, the method comprising mixing a starting material-containing substance containing a lithium atom, a phosphorus atom, a sulfur atom and a halogen atom in an organic solvent to produce a mixture and subjecting the mixture to irradiation with microwaves. Thus, a method for producing a sulfide solid electrolyte is provided, in which a heating temperature is decreased by employing a liquid phase method to suppress the granulation by heating and therefore a sulfide solid electrolyte that keeps the particle diameters thereof can be efficiently produced.

The present application relates to the technical fields of wastewater purification and energy storage material, and discloses an energy storage carbon material, a preparation method and application thereof.The method comprises the following steps: carbonizing biomass waste enriched with metal ions to obtain an energy storage carbon material.The energy storage carbon material can be used to prepare a secondary metal / ion battery.The energy storage carbon material prepared by the present application can promote the uniform deposition of metal in the charging and discharging process, avoid the safety problems caused by dendrite growth, and at the same time, the metal ions in industrial wastewater can be used to prepare high-value-added secondary battery energy storage materials by means of a simple and low-cost method of biosorption.

This invention discloses a superhydrophobic unsaturated transition metal chalcogenide compound, its synthesis method, and its applications. The invention involves heating chalcogenide powder to above its melting temperature to form a molten chalcogenide. This molten chalcogenide is then mixed with a reducing agent to undergo a disproportionation reaction. A strongly acidic solution containing transition metal cations is then added for aging, yielding a transition metal chalcogenide compound with a uniform porous structure, numerous surface defect sites, and a superhydrophobic surface. This transition metal chalcogenide compound exhibits good water resistance and high selective adsorption performance for nonpolar atoms and molecules, making it suitable for the removal of heavy metals or oxides from high-humidity flue gas. Furthermore, its unique porous structure and numerous catalytically active sites demonstrate good adsorption, capture, and catalytic conversion activity for oxidizing gases, making it suitable as an electroreduction catalyst.

Disclosed is a method for producing a sulfide solid electrolyte powder, the method comprising: a step of obtaining a starting material mixture by mixing staring materials; a step of synthesizing at least one of a sulfide powder or a sulfide precursor powder from the starting material mixture; a step of obtaining a sulfide solid electrolyte powder by heating the above-described powder in a heating area; a step of transferring the sulfide solid electrolyte powder to a cooling area; and a step of cooling the sulfide solid electrolyte powder in the cooling area, while flowing an inert gas therethrough. With this method for producing a sulfide solid electrolyte powder, the heating area and the cooling area are separated from each other.

The solid electrolyte has: first crystallites formed on primary particles and having a first crystal structure; a second crystallite formed in the same primary particle as the first crystallite and having a second crystal structure different from the first crystal structure; and an amorphous phase, the first crystallites and the second crystallites each contain lithium, the first crystal structure is a hexagonal crystal, the second crystal structure is an orthorhombic crystal, and both the crystallite size of the first crystallites and the crystallite size of the second crystallites are 50 nm or less.

The present invention relates to a method of preparing a sulfide electrolyte. According to one aspect of the present invention, a method of preparing a sulfide electrolyte of the present invention includes: a moisture control step of controlling the moisture content in a solvent; a step of preparing a precursor solution by stirring a precursor and the solvent with the controlled moisture content; and a powder synthesis step of synthesizing electrolyte powder using the precursor solution.

Provided is a method of producing semiconductor nanoparticles exhibiting band-edge emission with a short emission peak wavelength. The method of producing semiconductor nanoparticles comprises: obtaining a first mixture that contains a Ag salt, an In salt, a compound containing Ga and S, and an organic solvent; and performing a heat treatment of the first mixture at a temperature in a range of 125° C. or higher and 300° C. or lower to obtain first semiconductor nanoparticles.

The subject matter of the invention provides a viable solvent treatment method for manufacturing surface-modified alkali metal sulfides or alkali metal thiophosphates, especially surface-modified lithium thiophosphates, e.g. Li6PS5Cl (mLi6PS5Cl). Utilizing nonpolar organic solvents to reduce the concentration of additives with Lewis-basic activity, the surface of, for example Li6PS5Cl, is modified to improve the ionic conductivity of electrolytes of type Li6PS5Cl or other lithium thiophosphates.

This solid electrolyte has: a first crystallite which is formed into a primary particle and has a first crystal structure; a second crystallite which is formed into the same primary particle as the first crystallite and has a second crystal structure that is different from the first crystal structure; and an amorphous phase. The first crystallite and the second crystallite each contain lithium, the first crystal structure is a hexagonal crystal structure, the second crystal structure is an orthorhombic crystal structure, and the crystallite size of the first crystallite and the crystallite size of the second crystallite are both 50 nm or less.

The present invention provides a hydrogen sulfide-based solid electrolyte compound for an all-solid-state battery represented by formula 1, a method for preparing the compound, and an all-solid-state battery using the compound.

The subject matter of the invention provides a viable solvent treatment method for manufacturing surface-modified alkali metal sulfides or alkali metal thiophosphates, especially surface-modified lithium thiophosphates, e.g. Li6PS5Cl (mLi6PS5Cl). Utilizing nonpolar organic solvents to reduce the concentration of additives with Lewis-basic activity, the surface of, for example Li6PS5Cl, is modified to improve the ionic conductivity of electrolytes of type Li6PS5Cl or other lithium thiophosphates.

This layered material nanosheet production method comprises a detachment step for detaching, in a layer form, layered material particles by irradiating the layered material particles with microwaves while cooling the layered material particles.

The invention provides a method for sintering battery powder needing atmosphere protection, which comprises the following steps of: firstly, in an atmosphere protection environment, filling the battery powder into a customized sintering crucible, and sealing; then the sealed sintering crucible is moved out of the atmosphere protection environment and placed in a high-temperature sintering furnace for high-temperature sintering; and finally, the sintered crucible is moved to the atmosphere protection environment again, after cooling, the sintered crucible is opened, and the sintered battery powder is refined and subpackaged. The sintering crucible capable of containing the battery powder is designed, the process of filling the battery powder into the sintering crucible is carried out under atmosphere protection, and the sintering crucible is moved out of the atmosphere protection environment after filling is finished; then the sintering crucible is placed in a high-temperature sintering furnace for high-temperature sintering, in the process, the sintering crucible is in a sealed state, external air can be prevented from entering the sintering crucible, and therefore the high-temperature sintering furnace does not need to be in an atmosphere protection environment, and the complexity of equipment and the production cost are reduced.

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.

The invention relates to a two-dimensional transition metal dichalcogenide nano-roll as well as a preparation method and application thereof. The method comprises the following steps: providing a metal substrate, and forming a two-dimensional transition metal disulfide strip on the surface of the metal substrate; forming an organic protective layer on the surface of the two-dimensional transition metal disulfide strip, removing the metal substrate, and transferring the two-dimensional transition metal disulfide strip with the organic protective layer to a target substrate; and soaking the two-dimensional transition metal dichalcogenide strip with the organic protective layer in a high-polarity organic solution, then taking out the two-dimensional transition metal dichalcogenide strip, and quickly drying the two-dimensional transition metal dichalcogenide strip by blowing, so that the two-dimensional transition metal dichalcogenide strip is curled to obtain the two-dimensional transition metal dichalcogenide nano roll. The invention also provides an application of the nano roll in a nonlinear optical device. The method is simple, convenient, high in universality, simple and convenient in technological operation, short in flow and easy to popularize.

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.

According to the two-dimensional material wet transfer device and the two-dimensional material wet transfer method, in the operation process, the porous filter plate is located at the third position and can stably bear the two-dimensional material after etching and cleaning, so that the two-dimensional material is kept in a tiled state; when the cleaning liquid is released for the last time, the substrate bearing plate is located at the second position and is in an inclined state, the two-dimensional material stably descends to the surface of the target substrate along with the liquid level through slow rotation and liquid discharging control, and liquid between the two-dimensional material and the target substrate can be effectively discharged through the inclined angle design; the integrity and flatness of the two-dimensional material are guaranteed to the maximum extent, the two-dimensional material is effectively prevented from being wrinkled or damaged, and the complete two-dimensional thin film material is obtained.

The invention relates to a solid material obtainable by melt quenching a mixture of lithium sulfide, boron sulfide, boron oxide and a lithium halide to form a glassy solid suitable for use as a lithium ion conductive electrolyte. These sulfide-based lithium ion conductive solid electrolytes exhibit high ionic conductivity.

The invention provides an inorganic nano core-shell structure material and preparation and application thereof in tumor treatment, and belongs to the technical field of inorganic biological functional materials.The preparation method comprises the following steps that a ruthenium precursor and a copper precursor are added into a solvent to be evenly mixed to obtain a reaction solution, and the reaction solution is heated to the temperature T1 and then vacuumized to remove impurities; and heating the reaction solution to a reaction temperature T2 in an inert atmosphere, carrying out heat preservation, cooling after the reaction is finished, precipitating a product, separating and washing. The method is easy to control, the prepared nanometer material is good in dispersity, uniformity and repeatability, the nanometer material can be combined with oxygen in cells under ultrasonic radiation to generate ROS, and the nanometer material can have photo-thermal performance under near-infrared light irradiation, so that the effect of treating tumors through synergism of sonodynamic force and photo-thermal is achieved, and the nanometer material has good application prospects. Good application prospects are realized.

The present invention relates to a sulfide-based solid electrolyte containing lithium (Li), phosphorus (P), sulfur (S) and a halogen element, having an argyrodite-based crystal structure, at least a portion of which is doped with one or more first doping elements selected from the Group 13 elements and one or more second doping elements selected from the Group 14 elements.

Provided is a method for producing a sulfide solid electrolyte having an argyrodite crystal structure in the liquid phase, the method allowing an efficient use of a raw material-containing substance to increase the production efficiency and facilitating production of a sulfide solid electrolyte with high quality. The method for producing a sulfide solid electrolyte having an argyrodite crystal structure comprises mixing a raw material-containing substance with a first solvent to obtain a mixture, mixing said mixture with a second solvent to obtain a solution containing a solid electrolyte precursor, heating the solid electrolyte precursor while supplying hydrogen sulfide to obtain a heated solid electrolyte precursor and burning the heated solid electrolyte precursor.

The present invention relates to solid materials which are obtainable by melt-quenching mixtures of lithium sulphide, boron sulphide, boron oxide and lithium halides, thereby forming a glassy solid which is suitable for use as a lithium-ion conducting electrolyte. These sulphide based lithium-ion conducting solid electrolytes exhibit a high ionic conductivity.

The present addresses the problem of providing a new method for producing a metal and / or metalloid-containing sulfide. The problem is solved by a method for producing a metal and / or metalloid-containing sulfide characterized by using as a reaction medium and sulfur source a melt that can be obtained by heating a first sodium polysulfide represented by Na2Sx (in the formula, 1 < x ≤ 5) and synthesizing a sulfide containing a metal and / or metalloid (where the metal is neither an alkali metal nor an alkaline earth metal) under normal pressure.

Provided is a method for producing a sulfide solid electrolyte having an argyrodite-type crystal structure in a liquid phase, the method having a production efficiency enhanced by efficiently using a raw material-containing substance and enabling easy production of a high-quality sulfide solid electrolyte, the method including mixing a raw material-containing substance and a first solvent to prepare a mixture, mixing the mixture and a second solvent to prepare a solution containing a solid electrolyte precursor, subjecting the solid electrolyte precursor to a heat treatment while supplying hydrogen sulfide to produce a heated solid electrolyte precursor, and firing the heated solid electrolyte precursor.

The present invention relates to a method for preparing a sulfide electrolyte, and according to one aspect of the present invention, the method for preparing a sulfide electrolyte comprises: a moisture control step for controlling the moisture content in a solvent; a step for preparing a precursor solution by stirring the precursor and the solvent in which the moisture content is controlled; and a powder synthesis step of synthesizing an electrolyte powder using the precursor solution.

A solid electrolyte includes: a first crystallite formed in a primary particle and having a first crystal structure; a second crystallite formed in the same primary particle as for the first crystallite and having a second crystal structure that is a crystal structure different from the first crystal structure; and an amorphous phase, the first crystallite and the second crystallite each contain lithium, the first crystal structure is a hexagonal crystal, the second crystal structure is an orthorhombic crystal, and the crystallite size of the first crystallite and the crystallite size of the second crystallite are both 50 nm or less.

The present invention provides a sulfurous acid-based solid electrolyte compound for an all-solid-state battery represented by Formula 1, a method for preparing the same, and an all-solid-state battery using the same.

The present invention relates to a sulfide electrolyte preparation method. According to one aspect of the present invention, the sulfide electrolyte preparation method of the present invention comprises: a water control step for controlling water content in a solvent; a step for producing a precursor solution by stirring a precursor with the water content-controlled solvent; and a powder synthesis step for synthesizing an electrolyte powder using the precursor solution.