Method for preparing graphene through molten inorganic salt reaction bed

An inorganic salt and reaction bed technology, applied in the field of graphene material preparation, can solve the problems of high cost, poor compatibility, poor dispersion and the like, and achieve the effect of simple method and environmentally friendly process

Active Publication Date: 2015-03-25
北京晟岱克科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, there is an urgent need to develop a method that uses new raw materials, is simple and easy to implement, has no special requirements for equipment, has low cost, high efficiency, zero pollution, zero emissions, is easy to promote and use, and can solve the problems existing in the existing graphene preparation technology. High cost, low efficiency, poor quality, poor dispersion, poor compatibility, etc., and a method for obtaining graphene materials with a high degree of planar orientation

Method used

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  • Method for preparing graphene through molten inorganic salt reaction bed
  • Method for preparing graphene through molten inorganic salt reaction bed

Examples

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Effect test

Embodiment 1

[0037] 30.0 g of commercially available copper phthalocyanine (CuPc) was used as a raw material without any purification treatment, and mixed evenly with sodium chloride, and the mass ratio of raw material to salt was 1:99. In a quartz tube furnace, under the protection of high-purity argon, the flow rate of argon is controlled at 50cm 3 min -1 , 20.7 grams of final metallic graphene-like materials were obtained by cracking under the following heating scheme. That is, the temperature is raised to 300 degrees at a slow heating rate of 5 degrees per minute, and 300 degrees is stable for 1 hour; the temperature is raised to 350 degrees at 5 degrees per minute, and 350 degrees is stable for 1 hour; hour; be heated up to 500 degrees at 3 degrees per minute, and stabilize at 500 degrees for 4 hours; be heated at 2 degrees per minute to 800 degrees, be stable at 800 degrees for 8 hours, and finally cool down to room temperature naturally, and the product is washed with water to remo...

Embodiment 2

[0039] 30.0 g of commercially available copper phthalocyanine (CuPc) was used as a raw material without any purification treatment, and mixed evenly with potassium chloride, and the mass ratio of raw material to salt was 1:99. In a quartz tube furnace, under the protection of high-purity argon, the flow rate of argon is controlled at 50cm 3 min -1 , 20.7 grams of final metallic graphene-like materials were obtained by cracking under the following heating scheme. That is, the temperature is raised to 300 degrees at a slow heating rate of 5 degrees per minute, and 300 degrees is stable for 1 hour; the temperature is raised to 350 degrees at 5 degrees per minute, and 350 degrees is stable for 1 hour; hour; be heated up to 500 degrees at 3 degrees per minute, and stabilize at 500 degrees for 4 hours; be heated at 2 degrees per minute to 800 degrees, be stable at 800 degrees for 8 hours, and finally cool down to room temperature naturally, and the product is washed with water to r...

Embodiment 3

[0041] 30.0 g of commercially available copper phthalocyanine (CuPc) was used as a raw material without any purification treatment, and mixed evenly with sodium chloride, and the mass ratio of raw material to salt was 10:90. In a quartz tube furnace, under the protection of high-purity argon, the flow rate of argon is controlled at 50cm 3 min -1 , 20.7 grams of final metallic graphene-like materials were obtained by cracking under the following heating scheme. That is, the temperature is raised to 300 degrees at a slow heating rate of 5 degrees per minute, and 300 degrees is stable for 1 hour; the temperature is raised to 350 degrees at 5 degrees per minute, and 350 degrees is stable for 1 hour; hour; be heated up to 500 degrees at 3 degrees per minute, and stabilize at 500 degrees for 4 hours; be heated at 2 degrees per minute to 800 degrees, be stable at 800 degrees for 8 hours, and finally cool down to room temperature naturally, and the product is washed with water to rem...

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Abstract

The invention discloses a method for preparing graphene through a molten inorganic salt reaction bed. The method comprises the following steps: with a phthalocyanine matter as a reaction raw material, uniformly mixing an inorganic salt with the phthalocyanine matter in the inorganic salt reaction bed, cracking and separating out to a highly plane oriented graphene material in an atmosphere furnace under a protective gas by adopting a program heating method. The method disclosed by the invention can be used for cracking under a non-hydrogen environment to obtain the graphene material, the method is simple, the process is environment-friendly, industrialized production can be achieved, and the obtained graphene has highly plane orientation property.

Description

technical field [0001] The invention relates to the field of preparation of new materials, in particular to a method for preparing graphene materials. Background technique [0002] In 2004, Geim et al. used adhesive tape to repeatedly peel off graphene on natural graphite. Graphene has caused an unprecedented sensation in the scientific community because of its unique single-layer flake hexagonal honeycomb lattice structure. Its unique excellent performance and huge potential The application value has attracted widespread attention all over the world. In terms of chemical bonding, the carbon atoms constituting the two-dimensional structure of graphene are represented by sp 2 This method of hybridization allows carbon atoms to form stable C-C bonds with three adjacent carbon atoms through σ bonds, endowing graphene with extremely high mechanical properties. At the same time, the π electrons provided by a large number of carbon atoms perpendicular to the graphene plane are d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04
Inventor 孙旭阳王沿辰董国秀
Owner 北京晟岱克科技有限公司
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