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Method for chemical synthesis of graphene

A chemical synthesis and graphene technology, applied in the chemical industry, can solve problems such as difficult to synthesize high-quality graphene in large quantities, and achieve the effect of simple operation, strong implementability, and broadened application range

Active Publication Date: 2010-07-28
INNER MONGOLIA RISING NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the π-π interaction of graphene, it is easy to aggregate, so this method is also difficult to synthesize high-quality graphene in large quantities.

Method used

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  • Method for chemical synthesis of graphene
  • Method for chemical synthesis of graphene

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Experimental program
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Embodiment Construction

[0029] In order to better understand the content of the present invention, the content of the present invention will be further described below in conjunction with specific examples, but the protection content of the present invention is not limited to the following examples.

[0030] The raw materials used in the examples of the present invention can be purchased from the market.

[0031] Implementation route:

[0032] (1)Graphite oxide

[0033] Add 1g of graphite and 70mL of concentrated sulfuric acid to a 250mL round-bottomed flask under ice bath conditions, and slowly add 7g of KMnO 4 (keep the reaction temperature of the system below 20°C), then raise the temperature to 30-50°C, and stir for 2h. Add distilled water 300mL under ice-cooling after the reaction finishes (at this moment, a large amount of heat will be released), add dropwise H 2 o 2 until no bubbles are produced. After centrifugation, the product was washed with dilute hydrochloric acid (1mol / L) until the...

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Abstract

The invention discloses a method for chemical synthesis of grapheme, which is composed of three steps: oxidizing, scattering and reducing. Graphite and acrylic acid serve as raw materials, benzoyl peroxide serves as initiator, in situ polymerization of the acrylic acid in solution is used for realizing stripping so as to obtain the grapheme. The method is simple and easy to operate, protects environment and has no pollution, raw material is cheap and easy to obtain, and yield is 64%, so that the method can prepare a great quantity of the grapheme. The method provides a simple and convenient path for synthesizing nanocomposite.

Description

technical field [0001] The invention belongs to the technical field of chemical industry. In particular, it relates to a chemical synthesis method of graphene. Background technique [0002] In 2004, Geim et al. used graphite as a raw material to obtain a series of new materials called two-dimensional atomic crystals - "Graphene" through micromechanical force exfoliation. Its discovery overturned the cognition that "thermodynamic fluctuations do not allow two-dimensional crystals to exist freely at a finite temperature" and shocked the entire physical world. The special properties of graphene determine that it has great economic value and broad market application prospects. However, although single-layer graphene can be obtained by simply exfoliating by micromechanical force, it is time-consuming, labor-intensive, and inefficient, and industrial production cannot be realized. Here, how to obtain graphene with high efficiency and high yield has become a hot topic of current...

Claims

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Application Information

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IPC IPC(8): C01B31/04
Inventor 李振徐秀娟秦金贵
Owner INNER MONGOLIA RISING NEW ENERGY
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