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A kind of preparation method of core-shell structure nanocomposite material

A nano-composite material and core-shell structure technology, which is applied in the field of preparation of nano-composite materials and core-shell structure nano-composite materials, can solve the problems of core-shell materials not having ferromagnetism, limited upgrading and transformation ability, and complicated preparation methods, etc. Achieve the effect of low cost, low equipment requirements and high preparation success rate

Active Publication Date: 2020-10-09
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0006] Aiming at the above-mentioned technical problems in the prior art, the present invention provides the preparation method of the core-shell nanocomposite material to solve the problem that the core-shell materials in the prior art do not possess ferromagnetism, have limited upgrading and conversion capabilities, and the preparation Methodologically cumbersome and complex technical issues

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  • A kind of preparation method of core-shell structure nanocomposite material
  • A kind of preparation method of core-shell structure nanocomposite material
  • A kind of preparation method of core-shell structure nanocomposite material

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Embodiment 1

[0023] The invention provides a method for preparing a core-shell nanocomposite material, comprising the following steps:

[0024] The first step is to take 0.05g of cobalt powder with a particle size of about 0.0008mol and 500nm, put it into a beaker filled with 20ml of absolute ethanol, and put it into an ultrasonic oscillator for 10 minutes to disperse the cobalt powder;

[0025] In the second step, take 10ml tetrabutyl titanate and put it into the previous 20ml absolute ethanol beaker;

[0026] The third step, add 0.3ml acetic acid in this 20ml absolute ethanol;

[0027] In the fourth step, dissolve 4ml of deionized water in 50ml of absolute ethanol;

[0028] The fifth step is to set the agitator at a speed of about 300 rpm and stir the mixed solution. The stirring rotor should be in the middle and bottom of the mixed solution to ensure sufficient and uniform stirring;

[0029] In the sixth step, add the mixed solution prepared in the fourth step to the mixed solution in...

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Abstract

The invention provides a method for preparing a nano-composite material with a core-shell structure. Take cobalt powder with a particle size of 500nm, put it into a container filled with absolute ethanol, put it into an ultrasonic oscillator to oscillate and disperse; measure titanic acid Tetrabutyl ester is put into above-mentioned dehydrated ethanol solution; Add acetic acid in above-mentioned dehydrated ethanol solution; Dissolve deionized water in deionized ethanol; Prepare dehydrated ethanol solution with every drop of 10-15 seconds speed, dropwise added to the mixture of acetic acid, while stirring. After the mixed solution forms an aerosol, put it in a drying oven to dry, and take it out to obtain the core-shell Co@TiO 2 Material. The invention adopts a new sol-gel method, the manufacturing process is simpler, the requirements for equipment are lower, the operation process is simplified, the cost is greatly reduced, the cost is lower, and the preparation success rate is higher.

Description

technical field [0001] The invention belongs to the field of materials science, and relates to a nanocomposite material, in particular to a preparation method of a core-shell nanocomposite material. Background technique [0002] In recent years, the preparation of core-shell nanocomposites (especially metal / oxide core-shell nanocomposites) [0003] It has aroused people's extensive research interest. Core-shell materials can be prepared by different coating techniques, and their performance is superior to ordinary materials in many aspects. Coating technology can tailor the surface properties of core particles, such as changing the surface charge, functional groups and reaction characteristics of the core, so as to improve the dispersion and stability of the core. At the same time, core-shell materials also have the characteristics of various types of composition, various shapes, and synergistic effects between components, and have been widely used in new energy fields such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/00B22F1/02B22F1/00
CPCH01F1/0054B22F1/07B22F1/054B22F1/16
Inventor 刘敦禹冯亮金晶程潜林黎明李焕龙李伟杭伊萱王子墨刘中毅吴渊默周健健郭裕丰张睿普李振壮刘晶涂艳武朱以周翟中媛张建超赵冰
Owner UNIV OF SHANGHAI FOR SCI & TECH
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