37results about How to "There will be no reunion" patented technology

The invention discloses a method for preparing a parallel-oriented FePt magnetic nano-composite film, which is characterized by comprising the following steps: 1, utilizing an amphiphilic block copolymer PS-P4VP to self-assemble into a reverse micelle in methylbenzene, and then adding metal salt, namely FeCl3 and H2PtCl6 into reverse micelle solution to form a metal salt supported reverse micelle; 2, utilizing a spin-coating method to obtain a reverse micelle array on a silicon substrate, and obtaining an FePt nano-particle array with good monodispersity through oxygen plasma etching and hydrogen plasma etching; 3, using a magnetic control sputtering method to cover an SiO2 protective layer on the FePt nano-particle array; and 4, performing high-temperature annealing on a sample under protective atmosphere to finish the production of the parallel-oriented FePt magnetic nano-composite film.

The invention discloses a rare-earth metal compound and a synthetic process thereof. The chemical general formula of the rare-earth metal compound is shown in the specification, wherein x is more than 0, and y is not less than 0; m and n are more than 0, and m+n is equal to 3(x+y); z is equal to x+y; and Re is any of rare-earth metal elements except for Eu. The rare-earth metal compound can serve as a red fluorescent material, and the rare-earth metal compound has good acid resistance properties, alkaline resistance properties and powder dispersibility compared with the red fluorescent material in the prior art.

The invention discloses a preparation method of a SnS2 sodium-ion battery anode material with a cubic structure. The preparation method comprises steps as follows: 1), sodium thiosulfate is dissolved in deionized water, a solution A is prepared, stannic chloride pentahydrate is dissolved in the equal amount of deionized water, and a solution B is prepared; 2), the solution B is dropwise added to the solution A, a solution C is obtained, hexadecyl trimethyl ammonium chloride is gradually added to the solution C, and a solution D is obtained; 3), the solution D is subjected to ultrasonic oscillation in an ultrasonic generator; 4), pH of the mixed solution D after ultrasonic oscillation treatment is regulated, and a solution E is prepared; 5), the solution E is subjected to a hydrothermal reaction; 6), after the reaction, a precursor is taken out, centrifugally washed with ionized water and anhydrous ethanol and then subjected to freeze drying, and the SnS2 sodium-ion battery anode material with the cubic structure is obtained. The preparation method is low in preparation cost, simple to operate and short in preparation cycle, and the prepared SnS2 sodium-ion battery anode material with the cubic structure has excellent charge-discharge rate performance.