6 results about "Material synthesis" patented technology

The invention relates to a method for screening a metal organic framework catalytic material based on high-throughput calculation. Firstly, aiming at the MOFs series to-be-studied and a specific catalytic reaction system, a high-flux parallel calculation method is used to respectively calculate the adsorption energy, the Gibbs function variation and the activation energy series of performance parameters of a catalytic reaction system, and the best-performance MOFs material is selected; secondly, according to the high-flux calculation results, the optimal MOFs material is synthesized and subjected to performance verification by symptom, and further fed back to the corresponding database, and a high-throughput calculation mode is gradually optimized and improved. The method adopts a high-throughput parallel calculating method, which effectively shortens the calculation time. The theoretical calculation is used to guide the synthesis and preparation of the material, which makes the synthesis and preparation of materials have guiding properties, reduces the research and development costs, and shortens the development cycle. Through an interactive mode of real-time feedback of the experimental data to the theoretical calculation, the performance and accuracy of theoretical calculation can be continuously improved and optimized, and the method has good practical value.

The invention discloses an ultra-high pressure device based on a hinged-type hexahedral press and belongs to the technical field of ultra-hard material synthesis equipment. The ultra-high pressure device structurally comprises six press anvils (1) which are synchronously driven by a hexahedral press, a cubic synthesis block (3) and pressurization anvils (5) arranged between press anvil faces (2) and the plane of the synthesis block (3). The invention is characterized in that the ltra-high pressure device further comprises a cubic support frame (4) which is formed by assembly of four pressurization anvil holders (6), each pressurization anvil holder (6) is formed by three columns which are perpendicular to one another, and the pressurization anvils (5) can pass through the six planes of the cubic support frame (4) and move in the axial direction of the pressurization anvils (5) to apply a pressure to the synthesis block (3) or relieve the pressure of the synthesis block (3). The invention has the biggest advantage as follows: the six pressurization anvils (5) can be assembled on the cubic support frame (4) very easily and can be used directly without needing setting-up or alignment; the installation and set-up are rapid and accurate; and the time is saved.

The invention provides a cobalt iron oxide-cobalt phosphate electrocatalytic oxygen evolution composite material, and a preparation method and application thereof. The composite material is a composite material of a cobalt iron oxide nano-square block and a cobalt phosphate nano-array growing on foamed nickel in situ, the expression of the composite material is CoFeO-CoPi (NF), and the composite material belongs to the technical field of new energy nano-material synthesis. The cobalt phosphate nano-array growing on foamed nickel is taken as a template and a cobalt source, ferricyanide is introduced to form cobalt ferricyanide nano-square blocks on the cobalt phosphate nano-array, and the cobalt ferricyanide nano-square blocks on the cobalt phosphate nano-array are calcined at a high temperature in an air atmosphere to obtain the composite material of cobalt iron oxide and cobalt phosphate. The synthesis method simply and effectively compounds the cobalt phosphate and cobalt iron oxide,and enriches the compounding synthesis method of multi-metal oxide and oxysalt. The material shows excellent electro-catalytic oxygen evolution performance, has obvious morphology conversion after electro-catalytic oxygen evolution, and is suitable for the field of new energy development.

The invention discloses an inorganic-organic hybrid gallium oxalate photochromic material synthesis method, which comprises: carrying out a reaction on a mixture of a gallium-containing metal source,an organic ligand and DESs for 2-13 days at a temperature of 110-150 DEG C under a sealing condition, wherein the gallium-containing metal source is one selected from gallium oxide, gallium oxyhydroxide and a gallium salt, the DESs are choline chloride and oxalic acid, and a molar ratio of the gallium-containing metal source to the organic ligand to the choline chloride in the DESs is 0.5-1:1-2:5-20. According to the present invention, the synthesized inorganic-organic hybrid gallium oxalate photochromic material can be used for convenient and rapid visual detection of ultraviolet index.

The invention relates to a preparation method and application of a coal and oil co-refining catalyst, and belongs to the technical field of material synthesis and application. The method comprises the following steps: adding urea into a ferric salt solution mixed with auxiliary metal ions, and stirring and reacting at 70-100 DEG C for 6-10 hours to obtain slurry; and filtering, and drying the filter residue at 20-100 DEG C to obtain the catalyst. The auxiliary metal ions are more than one selected from cobalt, nickel, molybdenum, copper and aluminum. When coal and oilare co-refined, the catalyst and sulfur powder are added into a coal and oil mixed slurry, and vulcanized at 90-150 DEG C to obtain the vulcanized catalyst. According to the method, urea is used as a precipitant, after urea is dissolved, ammonia can be slowly and uniformly released in a solution by controlling the decomposition temperature of urea, and iron ions and auxiliary metal ions are uniformly and slowly co-precipitated into nanoparticles; meanwhile, excessive urea is added, so that the specific surface area and the pore volume of the catalyst can be improved in the later use process.