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A rapid preparation method of core-shell magnetic carbon microspheres

A carbon microsphere and core-shell type technology is applied in the field of rapid preparation of core-shell type magnetic carbon microspheres, which can solve the problems of weak magnetic properties and long preparation process of magnetic carbon microspheres, and achieve accurate and detailed data and advanced technology. Effect

Inactive Publication Date: 2017-01-25
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the preparation process of magnetic carbon microspheres is long, the magnetic properties are weak, and there are many disadvantages, which need to be further explored and studied

Method used

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  • A rapid preparation method of core-shell magnetic carbon microspheres
  • A rapid preparation method of core-shell magnetic carbon microspheres
  • A rapid preparation method of core-shell magnetic carbon microspheres

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Experimental program
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Embodiment Construction

[0069] The present invention will be further explained below in conjunction with the drawings:

[0070] figure 1 Shown is the state diagram of preparing core-shell carbon microspheres by hydrothermal synthesis. The position of each part must be correct, proportioning according to quantity, and operation in order.

[0071] The amount of chemical substances used in preparation is determined according to the preset range, in grams, milliliters, centimeters 3 It is the unit of measurement.

[0072] The preparation of core-shell carbon microspheres by hydrothermal synthesis is carried out in a reactor, and is completed in the process of heating in a heating furnace and hydrothermal synthesis;

[0073] The heating furnace is vertical. The lower part of the heating furnace 1 is the first electric control box 2, the upper part is the furnace cover 3, and the inner bottom of the heating furnace 1 is the first working table 9, and the reaction kettle is placed on the upper part of the first work...

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Abstract

The invention relates to a quick preparation method of core-shell magnetic carbon microspheres and aims to solve the problem that carbon microspheres easily aggregate. According to the method, glucose is used as a carbon source, ferrous gluconate is used as an iron source, cetyl trimethyl ammonium bromide is used as surfactant, the ferrous gluconate is generated into iron compound by hydrothermal synthesis, the glucose is generated into carbon microspheres covering iron cores, core-shell carbon microspheres are formed and made into Fe3O4 cored magnetic microspheres by high-temperature calcining. The method is advanced and quick, data are accurate and detailed, the particle size of the magnetic carbon microspheres is not greater than 600 nm, product purity is up to 98%, the product is ferromagnetic and is applicable to various industrial fields, and the method is ideal.

Description

Technical field [0001] The invention relates to a rapid preparation method of core-shell type magnetic carbon microspheres, belonging to the technical field of carbon material preparation and application. Background technique [0002] Carbon microspheres, CMSs for short, have unique structural features and excellent physical and chemical properties, such as good thermal stability, good chemical stability, and excellent electrical and thermal conductivity. [0003] The preparation methods of carbon microspheres mainly include chemical vapor deposition method, arc discharge method, template method, solid phase pyrolysis method, ion beam co-sputtering method and hydrothermal synthesis method; the hydrothermal synthesis method requires lower temperature and pressure, Relatively mild conditions, extensive carbon source sources, low preparation cost, high product purity, simple synthesis process, safe and non-toxic, green and environmentally friendly, it is a superior synthesis method; u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/02B01J13/02
Inventor 郭兴梅刘海星邱丽李万捷
Owner TAIYUAN UNIV OF TECH