99results about "Germanium compounds" patented technology

The invention discloses a novel nano-drug Res (at) LDH and a preparation method and application thereof.Germanium-doped LDH powder and resveratrol are combined to obtain a nanoscale particle mixed material Res (at) LDH, electron paramagnetic resonance (EPR) tests show that both the germanium-doped LDH and the traditional drug resveratrol show excellent reactive oxygen species (ROS) removal characteristics, and the Res (at) LDH can be used for preparing a novel nano-drug Res (at) LDH. The nano-drug Res (at) LDH formed by combining the two has remarkable synergistic ROS removal efficiency which can reach 90%. Meanwhile, in-vivo biological distribution experiments show that the novel nano-drug Res (at) LDH has excellent blood-brain barrier permeability, enhances accumulation in brain tissues, improves neurological dysfunction, reduces infarct volume, shows strong antioxidant activity, and inhibits release of pro-inflammatory cytokines.

The present invention can provide a method for preparing a sulfide-based solid electrolyte in a short time using a solvothermal synthesis method. In addition, the present invention may provide a sulfide-based solid electrolyte prepared by the method. In addition, the present invention may provide an electrode for an all-solid-state battery including the sulfide-based solid electrolyte.

The invention discloses a modified solid-state electrolyte and a preparation method and application thereof, and relates to the field of solid-state batteries, in 300 crystal face grain size distribution of the modified solid-state electrolyte, Kn90 = (Ln90-Ln10) / Ln50, and Kn90 is more than or equal to 0.5 and less than or equal to 1.7; wherein Ln10 is the corresponding grain size when the volume distribution cumulative percentage of the 300 crystal face sub-grain size Ln of the modified solid electrolyte reaches 10%, and Ln50 is the corresponding grain size when the volume distribution cumulative percentage of the 300 crystal face sub-grain size Ln of the modified solid electrolyte reaches 50%; ln90 is the corresponding grain size when the volume distribution cumulative percentage of the 300 crystal face sub-grain size Ln of the modified solid electrolyte reaches 90%. According to the invention, the modified solid electrolyte has excellent ionic conductivity, good air stability, interface stability to metal lithium and relatively high oxidation potential stability.

The invention belongs to the field of resource recovery, and discloses a preparation method of germanic acid, which comprises the following steps: step 1, mixing germanium-containing soot and alkali liquor to obtain slurry A, and carrying out solid-liquid separation after the slurry A reacts to obtain germanium-containing leachate and leaching residues; and step 2, continuously introducing CO2 into the germanium-containing leachate to obtain slurry B, and carrying out solid-liquid separation on the slurry B to obtain a precipitation material, namely germanic acid. According to the method, the carbon dioxide and the germanium-containing leachate are reacted, impurity cations are prevented from being introduced, the concentration of germanic acid is increased, the reaction can be carried out under the condition that the pH value is 6-7, the pH value of a reaction system does not need to be adjusted before the reaction, or the pH value range of the reaction system needing to be adjusted is greatly reduced, raw materials are saved, the process is simplified, and popularization and industrialization are facilitated.

Provided is a process for preparing composite particles for use as an electroactive material for a metal-ion battery, the process comprising the steps of: (a) providing porous particle frameworks comprising micropores and / or mesopores and optionally a polyvalent metal; (b) optionally impregnating the porous particle frameworks with a polyvalent metal; (c) depositing elemental silicon and / or elemental germanium in the pores of the porous particle frameworks; wherein either the porous particle frameworks in step (a) comprise the polyvalent metal, step (b) is performed, or both; thereby providing impregnated porous particle frameworks comprising the polyvalent metal and the silicon and / or germanium; and (d) contacting the impregnated porous particle frameworks with a monovalent metal while applying an electric potential effective to cause the formation of an intermetallic phase which comprises the polyvalent metal, silicon and / or germanium, and the monovalent metal; thereby providing the composite particles.

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.

A method for producing a sulfide solid electrolyte includes: supplying a sulfide solid electrolyte raw material to a tank of a heating furnace; and heating and melting the sulfide solid electrolyte raw material in a gas atmosphere containing a sulfur element. The method includes: obtaining a melt by the heating and melting; and setting a temperature on a bottom side of the melt to be higher than a temperature on a liquid surface side of the melt in the tank.

The invention discloses a long-afterglow luminescent nano material for optical temperature measurement and a preparation method thereof, and relates to the technical field of optical temperature measurement. The chemical formula of the long-afterglow luminescent nano material is Zn3Ga2Ge2O10: x% Cr < 3 + >: y% Sm < 3 + >, wherein x is equal to 0.1-1.2, and y is equal to 0-10 and is not equal to 0. The long-afterglow luminescent nano material is prepared by a citric acid sol-gel method, shows huge potential in the field of optical temperature measurement by virtue of excellent luminescent property, ultra-long afterglow time and high sensitivity, and can meet the temperature measurement requirements in various complex and extreme environments.

Provided is a method for preparing a sulfide-based solid electrolyte. The method for preparing a sulfide-based solid electrolyte may comprise the steps of: preparing a solid electrolyte including sulfide; and providing a precursor and a reactant containing oxygen on the solid electrolyte to form a protective film on the solid electrolyte through a reaction between the precursor and the reactant.

A main object of the present disclosure is to provide a sulfide solid electrolyte with excellent water resistance. The present disclosure achieves the object by providing a sulfide solid electrolyte including a LGPS type crystal phase, and containing Li, Ge, P, and S, wherein: when an X-ray photoelectron spectroscopy measurement is conducted to a surface of the sulfide solid electrolyte, a proportion of Ge2+ with respect to total amount of Ge is 20% or more.

The invention discloses an alkali washing tank and a process for producing high-purity germane by using the alkali washing tank, and relates to the technical field of alkali washing purification, the alkali washing tank comprises an alkali washing assembly, the alkali washing assembly comprises a tank body, a partition plate is fixed in the tank body, a one-way spray pipe is fixed on one side of the partition plate, a gas conveying sleeve is arranged in the tank body, and a gas conveying pipe and a gas collecting hood are embedded in the top of the tank body; the adjusting assembly is arranged at the top of the tank body and comprises a homogenizing part, the homogenizing part is located at the top of the tank body, and a conveying part is arranged on one side of the homogenizing part. The device has the beneficial effects that through the arrangement of the alkali washing assembly and the adjusting assembly, waste gas can flow into alkali liquor in a separated manner after an alkali washing reaction is carried out for a period of time; along with further alkali washing, alkali liquor is supplemented through the guide pipe, while the alkali liquor is supplemented, waste gas is still subjected to continuous purification reaction, the overall reaction rate is guaranteed, manual or electrical equipment intervention is not needed, and the actual use cost and the subsequent maintenance cost are effectively reduced.

To provide an oxide fluorescent material having a light emission peak wavelength in a wavelength range from red light to near-infrared light and having a wide full width at half maximum of the light emission spectrum, and a light emitting device using the same.SOLUTION: An oxide fluorescent material has a composition represented by the following formula (1). (Ga1-uM1u)2(Ge1-vM2v)wOx:Cry, M3z (1), where M1 represents at least one element selected from the group consisting of Al, Sc, and In; M2 represents at least one element selected from the group consisting of Si, Ti, Zr, Sn, and Hf, M3 represents at least one element selected from the group consisting of Ni, Eu, Fe, Mn, Nd, Tm, Ho, Er, and Yb; and u, v, w, x, y, and z satisfy 0≤u≤1.0, 0≤v≤0.5, 1.0≤w≤3.0, 5≤x≤9, 0.005≤y≤1.0, and 0≤z≤0.5, respectively.SELECTED DRAWING: Figure 4

The main objective of this disclosure is to provide a sulfide solid electrolyte with good water resistance. This disclosure addresses the aforementioned problem by providing a sulfide solid electrolyte containing Li, Ge, P, and S, and exhibiting an LGPS-type crystal phase. When X-ray photoelectron spectroscopy is performed on the surface of the aforementioned sulfide solid electrolyte, Ge... 2+ It accounts for more than 20% of the total amount of Ge.

The invention relates to inorganic compounds having a structure of argyrodite type which are derived from a process comprising a step of grinding alkali metal sulfide, alkali metal sulfate, phosphorus pentasulfide and an alkali metal halide. Also described are electrode materials, electrodes, electrolytes comprising said compounds, and the uses thereof in electrochemical cells, in particular in batteries known as all-solid-state batteries. Prolonged grinding of the precursors, followed by little or no annealing, gives compounds of formula M6-xPS5-x-yOyZ1i+x or M6-x2yPS5-x-yOyZi+x in which M is chosen from Li, Na and K, Z is a halogen atom chosen from F, Cl, Br and I, where x denotes the number of Z in excess of 1 or is equal to zero, and y is a number other than zero.

This solid electrolyte includes M1, M2, and X, wherein: M1 is an element that forms a monovalent cation, and includes at least one element selected from the group consisting of Li, Na, and K; M2 is at least one element that forms a trivalent cation; X is at least one element selected from the group consisting of F, Cl, Br, and I; and the axial angles α, β, and γ in the unit lattice of the crystal structure are 90°. As a result, a solid electrolyte having high ionic conductivity can be provided.

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.

The invention relates to an improved synthesis process of a cesium germanium bromide halogen perovskite material. The improved synthesis process comprises the following reaction steps: (1) constructing a condensation reflux device and a nitrogen pipeline; (2) weighing germanium dioxide, hydrobromic acid, concentrated hypophosphorous acid and absolute ethyl alcohol; (3) putting the three-neck flask into an oil bath pan, and connecting a condensation reflux device and a nitrogen gas path; (4) after germanium dioxide is completely dissolved, the solution in the flask is clarified; (5) injecting the cesium bromide solution into the three-neck flask in a nitrogen environment, heating, and reacting for a period of time; (6) cooling the solution to room temperature in a nitrogen environment, and collecting a yellow cesium germanium bromide crude product; and (8) refining the crude cesium germanium bromide to obtain refined cesium germanium bromide, wherein the impurity content is lower than 0.5%. According to the method, the cesium-germanium bromide solution and methylbenzene are used, so that the problem that divalent germanium ions and cesium bromide are not completely reacted is solved, and a good solution is provided for synthesizing a high-purity cesium-germanium bromide material.

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

The application belongs to the field of novel multi-component photoelectric conversion materials, and particularly relates to a hexagonal Cu3GeS4 quantum dot, a preparation method and application thereof. The crystal form of the Cu3GeS4 quantum dot is hexagonal, and the micro-morphology is nanoscale spherical and / or polyhedral structure. The preparation method comprises the following steps: (1) dissolving germanium dioxide in a mercaptoacetic acid and ammonia water medium for standby; (2) dissolving a copper source in a high-boiling organic solvent and heating to a first temperature for constant temperature reaction for a period of time, then rapidly heating to a second temperature, injecting the germanium solution, and separating the solid product after the reaction is completed, thereby obtaining the product. The Cu3GeS4 quantum dot has high crystallinity, high monodispersity and uniform morphology size. The synthesis method has mild reaction conditions and simple process, realizes controllable preparation of the hexagonal Cu3GeS4 quantum dot with controllable size, uniform morphology, high crystallinity and monodispersity, and the nanomaterial can be potentially applied to the field of photoelectric conversion.

Provided is a process for preparing composite particles for use as an electroactive material for a metal-ion battery, the process comprising the steps of: (a) providing porous particle frameworks comprising micropores and / or mesopores and optionally a polyvalent metal; (b) optionally impregnating the porous particle frameworks with a polyvalent metal; (c) depositing elemental silicon and / or elemental germanium in the pores of the porous particle frameworks; wherein either the porous particle frameworks in step (a) comprise the polyvalent metal, step (b) is performed, or both; thereby providing impregnated porous particle frameworks comprising the polyvalent metal and the silicon and / or germanium; and (d) contacting the impregnated porous particle frameworks with a monovalent metal while applying an electric potential effective to cause the formation of an intermetallic phase which comprises the polyvalent metal, silicon and / or germanium, and the monovalent metal; thereby providing the composite particles.

The present invention relates to a production method for a sulfide solid electrolyte by which a sulfide solid electrolyte starting material is supplied to a vat of a heating furnace, and the sulfide solid electrolyte starting material is melted by heat in an elemental sulfur-containing gas atmosphere, the method comprising attaining a molten liquid through the melting by heat, and raising the temperature towards the bottom of the molten liquid in the vat so as to be higher than the temperature on the liquid surface side of the molten liquid.

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.

To provide an oxide phosphor and a light emitting device using the same.SOLUTION: An oxide phosphor has a composition represented by the following formula (1): (Mg1-pM1p)q(Li1-rM2r)s(In1-tM3t)u(Ge1-vM4v)wOx:Cry,M5z (1) where M1 is selected from the group consisting of Ca, Sr, Ba, and Zn; M2 is selected from the group consisting of Na, K, Rb, and Cs; M3 is selected from the group consisting of Al, Ga, and Sc; M4 is selected from the group consisting of Si, Ti, Zr, Sn, and Hf; M5 is selected from the group consisting of Ni, Ce, Eu, Fe, Mn, Nd, Tm, Ho, Er, and Yb; and 0≤p≤1.0, 0.1≤q≤0.9, 0≤r≤1.0, 0.05≤s≤0.45, 0≤t≤0.5, 0.05≤u≤0.45, 0≤v≤1.0, 0.8≤w≤1.3, 2.6≤x≤3.6, 0.002≤y≤0.5, 0≤z≤0.3, and 0.9≤q+s+u≤1.2 are satisfied.SELECTED DRAWING: Figure 4

The present invention discloses a method for preparing zinc germanate hollow microspheres with controllable size. The method for preparing zinc germanate hollow microspheres with controllable size disclosed by the present invention includes the preparation of a solvothermal system, the preparation of a crystallization precursor solution, and the steps of crystallization and drying. The method of the present invention has simple process, mild reaction conditions, and the size of the prepared material is controllable. Compared with the zinc germanate prepared by the solid-phase synthesis method, the zinc germanate hollow microspheres prepared by the present invention exhibit more efficient catalytic activity and have high application prospects in the fields of semiconductors and photocatalysis.

The application relates to the technical field of lithium ion batteries, and discloses a germanium-doped lithium-rich manganese-based positive electrode material, a preparation method thereof and a battery, steps of which are as follows: a Ni 0.25 Mn 0.75 CO3 precursor is prepared by adopting a carbonated co-precipitation method of a continuous stirring reaction kettle; the above Ni 0.25 Mn 0.75 CO3 precursor is fully ground and uniformly mixed with Li in a lithium source and a germanium source according to a certain proportion; the mixture is placed in a high-temperature calcining furnace to perform calcining under an air atmosphere, and a germanium-doped lithium-rich manganese-based positive electrode material modified by germanium ions is prepared after annealing; the germanium-doped lithium-rich positive electrode material is realized by adopting a one-step sintering method, and nanometer-scale fast-ion conductor lithium germanate coating is realized; germanium ions are introduced in a crystal lattice to induce Ni 2+ oxidation, cation order of the material is improved, the nanometer-scale fast-ion conductor lithium germanate coating can effectively isolate interface side reactions of the electrode material, lithium ion transmission is accelerated, the structural stability of the battery material is improved, and the cycle performance of the battery is improved.

The present invention relates to the technical field of all-solid-state sulfide electrolyte materials. Specifically, the present invention relates to a monoclinic sulfide electrolyte and its preparation method and application. The chemical formula of the novel monoclinic sulfide electrolyte is LiM1M2S 4， where M1 is a rare earth element, including scandium (Sc), yttrium (Y), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu); M2 is a Group IVA element, including silicon (Si), germanium (Ge), tin (Sn); and it is made from Li2S3, M1 elemental substance (powder), M2 elemental substance (powder), and sulfur (S) elemental substance (powder) through mixing, ball milling, and sintering. The monoclinic sulfide electrolyte of the present invention has good compatibility with lithium metal, can effectively inhibit lithium dendrites, and realizes a high-performance all-solid-state lithium metal battery.

The invention discloses a utilization method of coal-derived dust, belongs to the technical field of solid waste utilization, and aims to solve the problems of environmental pollution and germanium resource waste in coal-derived dust easily caused by solid waste stacking of coal-derived dust in the prior art. The utilization method comprises the following steps: collecting coal derived dust; the coal-derived dust is subjected to a primary fluidization reduction reaction, coal-derived dust subjected to primary fluidization reduction and flue gas subjected to primary fluidization reduction are obtained, and the flue gas subjected to primary fluidization reduction contains germanium monoxide; the coal derived dust subjected to primary fluidization reduction is subjected to a secondary fluidization reduction reaction, tailings obtained after the secondary fluidization reduction reaction and flue gas obtained after the secondary fluidization reduction reaction are obtained, and the flue gas obtained after the secondary fluidization reduction reaction contains germanium monoxide; and collecting the flue gas after the primary fluidization reduction reaction and the flue gas after the secondary fluidization reduction reaction to realize enrichment of germanium in the coal-derived dust and complete utilization of the coal-derived dust. The method can be used for utilizing the coal derived dust.

The invention relates to the field of inorganic materials, and discloses an electronic compound and a preparation method thereof. The general chemical formula I of the electron compound is [Mb (DO4) n] a < + > (ae <->), in the compound, high-concentration electrons are introduced into the compound, all interstitial oxygen ions are replaced by the electrons, the compound can be regarded as an electron compound (including silicate and germanate electron compounds), [Mb (DO4) n] a < + > is positive ions, and the electrons are negative ions. The preparation method comprises the following steps: S1, carrying out ball milling on an oxide raw material and a simple substance raw material according to a stoichiometric ratio of an electronic compound; and S2, performing high-temperature roasting in an inert atmosphere to obtain an electron compound of which interstitial oxygen ions are all substituted by electrons. The electron compound with all interstitial oxygen ions substituted by electrons is synthesized in one step by combining a mechanochemical method and a high-temperature solid-phase reaction, and the electron compound is good in stability and excellent in performance and has important significance on research of basic leading edge and practical application.