18 results about "Solution synthesis" patented technology

The invention discloses a big language model credible reasoning system and method based on double-flow cognitive loss and solution synthesis, and aims to solve the problem of'compliance illusion 'caused by the fact that a big language model cannot process internal and external knowledge conflicts. The invention provides a double-flow cognitive engine, which is used for executing a'this-my 'flow of internal knowledge of a simulation model and a'super-my' flow strictly following an external document in parallel so as to generate two opposite cognitive state vectors. The system calculates a semantic conflict score between the two vectors in real time through a cognitive disorder detector. When the conflict is significant, the system activates and demodulates the synthesis module, and actively generates a text for solving the conflict; when there is no conflict, the output of the "super-my" stream is continued to ensure factuality. According to the method, cognitive conflicts are explicitly and actively solved, and a large language model is transformed into an inference engine with inherent critical thinking and high credibility.

The invention relates to a liquid-phase synthesis method of an oxychloride electrolyte material, and belongs to the technical field of electrolyte material synthesis. The method comprises the following steps: mixing reaction raw materials in a solvent, and reacting to obtain a solution; evaporating the solution to obtain solid particles; and carrying out heat treatment on the solid particles to obtain the oxychloride electrolyte material LixMOyClz, wherein the reaction raw materials comprise a lithium source and an M source, and the M source comprises chloride of M; the chloride of M is adopted as an M source and is matched with a lithium source to form a reaction raw material, the characteristic that most of metal chlorides are soluble in water is utilized, the reaction raw material is prepared into an aqueous solution to form a liquid-phase synthesis system, then solids separated out through evaporation are subjected to proper heat treatment, and the oxychloride electrolyte material is prepared. And the problems of high energy consumption, long time consumption and easy introduction of impurities in preparation of the oxyhalide electrolyte material by a solid phase method are improved.

The invention provides a high-entropy oxide material and a preparation method and application thereof, and relates to the technical field of supercapacitor materials. The high-entropy oxide material is prepared by taking nitrates corresponding to Cr, Fe, Co and Ni and ammonium paramolybdate as raw materials through a simple solution synthesis method, is of a spinel structure and has a space group of Fd-3m. According to the preparation method provided by the invention, the specific surface area of the material can be increased by utilizing the high-entropy effect of various metal elements by regulating and controlling the proportion and synthesis conditions of all the metal elements, and the prepared high-entropy oxide can still keep the structural stability and electrochemical activity under high temperature or extreme electrochemical conditions, is not easy to generate phase separation or degradation, and has a good application prospect. Therefore, the durability and the service life of the material are remarkably improved. The high-entropy oxide material prepared by the method shows excellent pseudocapacitance behavior in electrochemical energy storage, and provides an efficient and economical material choice for energy storage.

The invention belongs to the technical field of detection materials, and relates to a double-perovskite-based luminescent material, a preparation method thereof and application of the double-perovskite-based luminescent material in luminescent imaging or anti-counterfeiting. The molecular formula of the double-perovskite-based luminescent material is Cs2NaCrCl6: Tm < 3 + > / Yb < 3 + >, the molar doping concentration of Tm < 3 + > is 0.5-5%, and the molar doping concentration of Yb < 3 + > is 2-80%. The preparation method comprises the following steps: dissolving cesium chloride, sodium chloride, chromium chloride, thulium chloride and ytterbium chloride in water according to a stoichiometric ratio, uniformly mixing, carrying out a solution synthesis reaction, and evaporating to remove a solvent, thereby obtaining the product. The double-perovskite-based luminescent material provided by the invention can generate light with different colors, can realize multiple anti-counterfeiting, is simple in preparation process and low in cost, and is beneficial to realizing industrial large-scale production.

The utility model relates to the technical field of reaction bottle liners, in particular to a reaction bottle liner for a laboratory, which comprises a reaction bottle, a liner, a plurality of anti-slip bumps, a plurality of anti-slip strips, a plurality of connecting strips, a plurality of bonding strips, a sealing ring, an oil filling pipe and a plug body, the reaction bottle is a 2000ml cylindrical bottle body, during reaction, the lining is placed on the inner wall of the reaction bottle and attached to the inner wall, after the lining is installed, the stirring rod is installed, the reaction bottle cap is covered, the clamp is clamped, the mercurial thermometer and the condensation pipe are fixed through the rubber plug, the motor is started for heating reaction, after solution synthesis is finished, the cover is opened, the lining is taken out by wearing the heat insulation glove, and the reaction bottle is sealed. Materials in the lining are poured into a packaging bag, and the lining can be reused after being placed and cooled and adhered substances are torn off, so that the reaction bottle does not need to be cleaned after being used, the lining can be taken out and the adhered substances are torn off, the reaction bottle can be continuously used, and the cleaning process is reduced.

The application provides a high-entropy oxide material and a preparation method and application thereof, and relates to the technical field of supercapacitor materials.The high-entropy oxide material is prepared from nitrate of Cr, Fe, Co and Ni and ammonium paramolybdate as raw materials through a simple solution synthesis method, and has a spinel structure and a space group of Fd-3m.The preparation method can utilize the high-entropy effect of multiple metal elements, increase the specific surface area of the material, and make the prepared high-entropy oxide maintain the structural stability and electrochemical activity under high temperature or extreme electrochemical conditions, and is not prone to phase separation or degradation, thereby significantly improving the durability and service life of the material.The high-entropy oxide material prepared by the above method exhibits excellent pseudo-capacitance behavior in electrochemical energy storage, and provides an efficient and economical material selection for energy storage.

The invention discloses a few-seed-crystal strategy for extendable solution synthesis of a large-area single crystal film. The uniformity of the single crystal film processed by a large-scale solution in form and crystal structure is proved from multi-scale characterization. The synthesized single crystal film shows excellent electrical performance indexes: the Hall effect mobility at room temperature is as high as 21 cm < 2 > V <-1 > s <-1 >, and the trap state density is as low as 6.6 * 10 < 8 > cm <-3 >.

The present invention discloses the application of a phytic acid-graphene oxide quantum dot composite as an aqueous monomer in the preparation of a polyamide nanofiltration membrane. The preparation method of the phytic acid-graphene oxide quantum dot composite includes: preparing an aqueous solution of graphene oxide by a modified Hummers method, then subjecting it to ultrasonic treatment at 450-550 W and performing a heating reaction to obtain a graphene oxide quantum dot solution, and further preparing the phytic acid-graphene oxide quantum dot composite by a solution synthesis method using the graphene oxide quantum dot solution and phytic acid as raw materials. By adding the phytic acid-graphene oxide quantum dot composite to the aqueous monomer, the present invention prepares a phytic acid-graphene oxide quantum dot composite-doped polyamide nanofiltration membrane through interfacial polymerization. Under the test conditions of room temperature and 0.6 MPa, it has a high rejection rate (above 97%) for a 0.2 wt% magnesium sulfate solution, and the pure water flux is 70-80 LHM.

The invention discloses a preparation method of a homogenized polyamide acid solution and a used reaction device, and belongs to the technical field of polyamide acid solution synthesis. The preparation method comprises the following steps: dissolving diamine in a reaction kettle by using a polar aprotic solvent, and adding dianhydride into the reaction kettle to carry out condensation polymerization, compared with the prior art, in the step of adding dianhydride into a reaction kettle for polycondensation reaction, non-reaction gas is continuously introduced into a polymerization reaction system in the kettle. By adopting the method disclosed by the invention, the polyamide acid solution with high molecular weight and narrow molecular weight distribution can be obtained in a relatively short time.

The present invention provides a radioactive drug solution synthesis apparatus and a method for cleaning replacement modules that can suppress the retention of residual substances in the line. [Solution] The radioactive drug solution synthesis apparatus 10 introduces cleaning solution into one container and overflows the cleaning solution from the other container to introduce it into the suction line. This allows the suction line to be cleaned with the cleaning solution. Here, target water does not actually pass through the vacuum lines L2 and L9, but rather volatile vapor adheres to them. There was a need to easily clean such residues. In response to this, the vacuum lines L2 and L9 can be cleaned with a simple operation of overflowing cleaning solution from one container, without adding any mechanisms.

The invention relates to the field of preparation of silybum marianum phospholipid complexes, in particular to a preparation device and a preparation method of a silybum marianum phospholipid complex. According to the preparation device of the silybum marianum phospholipid complex, the detachable central rotating shaft rotating pipeline and the settling cylinder are arranged in the decompression chamber and the fixed cover correspondingly, raw materials are continuously pumped into the settling cylinder, precipitated precipitates are sequentially collected into a collecting hopper structure of the settling cylinder, the precipitates are collected in the stirring process, and the stirring efficiency is improved. And precipitates collected in the settling cylinder are directly poured out in a quick dismounting manner, so that subsequent normal-temperature reduced-pressure concentration treatment work can be carried out in the reduced-pressure chamber, and three treatment work of multi-batch solution synthesis, precipitation separation and normal-temperature reduced-pressure concentration can be carried out in the reduced-pressure chamber. The technical defect that the treatment efficiency and the preparation effect of the silybum marianum phospholipid complex can be affected when a solution is transferred back and forth in various treatment devices to prepare the silybum marianum phospholipid complex is overcome.

The present invention discloses the application of a phytic acid-nitrogen-doped carbon quantum dot composite as an aqueous monomer in the preparation of a polyamide nanofiltration membrane. The preparation method of the phytic acid-nitrogen-doped carbon quantum dot composite includes: preparing nitrogen-doped carbon quantum dots by a hydrothermal reaction method, and then preparing a phytic acid-nitrogen-doped carbon quantum dot composite from the nitrogen-doped carbon quantum dots and phytic acid as raw materials by a solution synthesis method. By adding the phytic acid-doped carbon quantum dot composite to the aqueous monomer, a phytic acid-doped carbon quantum dot composite-doped polyamide nanofiltration membrane is prepared by interfacial polymerization. Under the test conditions of room temperature and 0.6 MPa, it has a high rejection rate (above 98%) for a 0.2 wt% magnesium sulfate solution, and the pure water flux is 65-75 LHM.

The invention discloses a preparation method of a WO3 hollow sphere, an egg-shaped WO3-TiO2 heterojunction and a sea urchin-shaped WO3-ZnO heterojunction, and an application of the WO3 hollow sphere, the egg-shaped WO3-TiO2 heterojunction and the sea urchin-shaped WO3-ZnO heterojunction in an ultraviolet detector. The WO3 hollow sphere disclosed by the invention is composed of a large number of nano-particles and shows rough surface characteristics and a hollow spherical nano-structure with a hollow interior; the'egg '-shaped WO3-TiO2 heterojunction shows that a layer of thin TiO2 shell layer wraps the outer part of the WO3 hollow sphere, and the whole body is in an'egg'-shaped form; the'sea urchin '-shaped WO3-ZnO heterojunction takes a WO3 hollow sphere as a core, ZnO nanorods are densely and approximately vertically grown on the surface of the sphere, and the whole'sea urchin'-shaped microstructure is presented. The preparation method comprises the following steps: synthesizing a WO3 hollow sphere by adopting a hydrothermal method, further respectively preparing an egg-shaped WO3-TiO2 heterojunction composite material and a sea urchin-shaped WO3-ZnO heterojunction composite material through solution synthesis, and constructing an ultraviolet detector by taking the obtained material as a detection material, and the detector can detect ultraviolet light without additionally applying bias voltage. The WO3 hollow sphere, the egg-shaped WO3-TiO2 heterojunction with a unique microstructure and the sea urchin-shaped WO3-ZnO heterojunction with a unique microstructure are synthesized by utilizing a simple solution method, the ultraviolet detector with a self-energy-supply characteristic is further prepared, and the ultraviolet detector is suitable for the field of photoelectric detection. The preparation process is easy to operate, low in cost, free of environmental pollution and suitable for large-scale production, and has wide application prospects and remarkable practical value.

The utility model relates to nano-selenium solution synthesis equipment, which comprises a stirring bin, the liquid conveying device is provided with a conveying pipeline and a temporary storage box connected with the conveying pipeline, the temporary storage box comprises an outer box body, a metering container and an automatic switch assembly, the metering container and the automatic switch assembly are arranged in the outer box body, materials are conveyed into the metering container through the conveying pipeline, and the materials overflow into the outer box body after being filled with the materials. The automatic switch assembly is used for controlling accurate quantity of materials in the metering container to enter the stirring bin; the solid conveying device is provided with a weighing part, and the weighing part is used for weighing solid materials and then feeding the solid materials into the stirring bin; liquid materials are metered through the metering container, and solid materials are weighed through the weighing part, so that the materials entering the stirring bin are accurately controlled, and the feeding precision and the feeding efficiency are improved.

The invention relates to the technical field of luminescent materials, in particular to a preparation method of a copper-based metal halide composite material paper X-ray scintillator, which adopts a simplest and direct solution synthesis method, is simple and convenient to operate, does not involve complex processes and high-energy equipment, has strong repeatability and can be quickly produced on a large scale. The defects of high temperature, high pressure and the like of traditional fluorescent powder preparation are avoided; the flexible scintillator film can be rapidly obtained according to the size of a paper base through a prime coat method; the scintillator is rich in raw material source, low in production cost, high in commercial use value and capable of being applied to the fields of X-ray flat panel detectors, CT detectors and the like, and in this way, the technical problem that in the prior art, a scintillator is limited in the aspect of X-ray imaging due to low spatial resolution and material toxicity of the scintillator in the prior art is solved.

The application belongs to the technical field of detection materials, and relates to a double-perovskite-based luminescent material, a preparation method thereof and application of the double-perovskite-based luminescent material in luminescent imaging or anti-counterfeiting. 3+ / Yb 3+ The molar doping concentration of Tm 3+ is 0.5-5%, and the molar doping concentration of Yb 3+ is 2%-80%. The preparation method is as follows: cesium chloride, sodium chloride, chromium chloride, thulium chloride and ytterbium chloride are dissolved in water according to the stoichiometric ratio, uniformly mixed and subjected to a solution synthesis reaction, and then the solvent is evaporated to obtain the double-perovskite-based luminescent material. The double-perovskite-based luminescent material provided by the application can generate light of different colors, can realize multiple anti-counterfeiting, and has the advantages of simple preparation process, low cost and being conducive to industrialized mass production.

The present invention discloses a zero-dimensional hybrid indium-based halide material and a preparation method and application thereof, belonging to the technical field. The technical scheme is as follows: the molecular formula of the zero-dimensional hybrid indium-based halide material is [DADPA]InX6·H2O, wherein DADPA is 3,3'-diaminodipropylamine, and X is Br or Cl. The present invention focuses on exploring efficient 0D hybrid indium halide materials with excellent scintillation performance. Through a simple low-temperature solution synthesis method, two 0D hybrid indium halides [DADPA]InX6·H2O with novel structures and photoquantum yields close to 100% are prepared as high-quality luminophores with yellow-orange luminescence.

The invention relates to the technical field of synthesis of chalcogenide compounds, in particular to a solution synthesis method of chalcogenide molybdenum amorphous powder. The method comprises the following steps: mixing a chalcogenide simple substance, a reducing agent and water to carry out reduction reaction, and reducing the chalcogenide simple substance into-2-valent ions to obtain a solution containing chalcogenide anions; mixing the solution containing the chalcogenide anions with a + 6-valent molybdenum source, and carrying out precipitation reaction to form amorphous chalcogenide molybdenum; the + hexavalent molybdenum source comprises ammonium molybdate or molybdenum acetylacetonate; the chemical formula of the amorphous molybdenum chalcogenide is MoX3, and X is S, Se or Te. Ammonium molybdate or molybdenum acetylacetonate is used as the molybdenum source, the sulfur group elementary substance is used as the sulfur source, the amorphous chalcogenide molybdenum is prepared through the solution synthesis method, the method has the advantages that the method is simple, raw materials are easy to obtain, cost is low, expensive equipment is not needed, expandability is good and the like, and the synthesized amorphous chalcogenide molybdenum is high in purity, uniform in particle size, uniform in element distribution and good in quality.