6 results about "Prepared Material" patented technology

The invention relates to a method for preparing the cathode material used in a ferrous phosphate lithium battery by adopting low-valent oxyacid of phosphorus; the technical proposal is as follows: lithium salt, ferrous salt, phosphate, and hypophosphorous acid or hypophosphite are blended according to the mol ratio that Li: Fe: PO4<3->: H3PO2 or AH2PO2 or E(H2PO2)2 is equal to x: y (1-z): k. Carbon-containing compound or carbon powder and wet milling liquid are added, ball milling is carried out for 3-12 hours, and the mixture is dried in atmospheric pressure or vacuum at 48-100 DEG C. The dried powder is prepared into the lithium iron phosphate containing controllable Fe2P by two-stage sintering process or temperature programmed two-stage sintering process. When the molecular formula of hypophosphite, one ingredient of the reaction composite, is AH2PO2 or E(H2PO2)2, A is Li<+>, Na <+>, K<+>, Ag<+> or NH<+>, E is Ca<2+>, Sr<2+>, Ba <2+>, Ga <2+>, Ge<2+>, Sn<2+>, Sc<2+>, Mn<2+>, Fe<2+>, Co<2+>, Ni<2+>, Cu<2+>, Zn<2+> or Mo<2+>. The method of the invention has low cost of raw materials, broad source of raw materials, simple preparation and short time consumed; the prepared materials have even composition, excellent discharge performance and good discharge cycling performance in heavy current.

The invention discloses a room-temperature preparation method of a metal-organic framework material preferentially adsorbing ethane. The preparation method comprises the following steps: dispersing zinc oxide and copper tetrafluoroborate hexahydrate in water and ethanol; dispersing quinoline-5-carboxylic acid in N,N-dimethylformamide; mixing the former solutions, and stirring an obtained mixed solution at room temperature; filtering the stirred solution to obtain a solid product, purifying, drying and performing vacuum activation to obtain the metal-organic framework material preferentially adsorbing the ethane. By the room-temperature preparation method, the metal-organic framework material with good alkane selectivity is prepared at room temperature, the synthesizing energy consumption of the material is reduced, and the prepared material has good adsorptive separation performance for ethylene-ethane gas at normal temperature and pressure. The material can preferentially adsorb the ethane from the ethylene-ethane mixed gas; in addition, the material has good water vapor stability, and still has a good crystal structure after 40-day direct exposure to air.

The invention belongs to the technical field of novel functional material design and preparation and provides a preparation method and application of a MnO2/Cu-Al-BTC ternary metal-organic framework material. The preparation method is characterized in that a Cu-Al precursor material excellent in physical and chemical properties is synthesized by using a microwave-assisted heating-impregnation combined method is as the synthesizing method, selecting the mixed liquid of benzoic acid and acetic acid as the stabilizer and using di-mu-hydroxo-bis[(N,N,N',N'-tetramethylethylenediamine)copper(II)] chloride and aluminum 9-octadecenylacetoacetate-diisopropoxide as the metal salt, and then FMES and OP-6 are selected as the molecule inducer to induce MnO2 to enter the framework structure of the Cu-Alprecursor material to prepare a MnO2/Cu-Al-BTC catalyst with ternary metal active sites. The denitrification efficiency of the prepared material reaches 90-96%, and the structural stability of the material can be kept until the temperature reaches 340 DEG C.

The invention discloses a porous carbon material prepared by using self-modification of pseudomonas putida and a preparation method and application thereof. Self accumulation PHA of the pseudomonas putida (Pseudomonas putida KT2440, preservation serial number of ATCC No.47054) is regulated and controlled by changing ingredients of a culture medium, and carbonization is carried out by directly adopting thallus collected by centrifugation to prepare the graded porous carbon material without any excitation steps. The germ self-modification derived porous carbon material has a large number of mesopore structures. The porous carbon material is used as an electrode material of a super capacitor, when electric current density is 0.5 A/g, the specific volume of the porous carbon material reaches 298 F/g; and when the electric current density increases by 20 A/g, the specific volume of the porous carbon material maintains by 234 F/g, and good electric capacity and excellent rate performance aredisplayed. The preparation method has the advantages of novelty, simple operation, low manufacturing cost and the like, the prepared material has the characteristics of graded bore diameter, large specific surface area, good electrical conductivity and excellent electrochemical performance, and is an electrode material for the ideal super capacitor or batteries.

The invention discloses a preparation and extraction device for biological collagen, and relates to the technical field of collagen preparation. The preparation and extraction device for the biological collagen comprises a barrel, a feeding port is formed in the side wall of the barrel, a feeding pipe is fixedly connected to the feeding port, a feeding end is arranged at the top of the feeding pipe, a fan is fixedly connected to the inner wall of the feeding pipe, a feeding assembly and an operation fan are arranged in the feeding pipe, and the operation fan is arranged in the feeding assembly. The fan blows the prepared materials to flow to accelerate the conveying efficiency of the prepared materials, the feeding ring horizontally slides to push the prepared materials to flow through magnetic force generated by the first magnetic block and the second magnetic block intermittently passing through the notch of the fixed rod, and the prepared materials are prevented from being blocked in the feeding pipe.