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Aminated fluorinated graphene and preparation method thereof

A fluorinated graphene, amination technology, applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve the problem that fluorinated graphene is not easy to modify, limit the application of fluorinated graphene, limit modification and application, etc. problems, to achieve the effect of short cycle, low preparation cost and strong operability

Active Publication Date: 2019-03-29
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, fluorinated graphene is severely hydrophobic and can only be dispersed in organic solvents such as 2-methylpyrrolidone, which limits the application of fluorinated graphene.
Moreover, due to the chemical properties of fluorine, fluorinated graphene is not easy to be modified, which further limits its modification and application.

Method used

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  • Aminated fluorinated graphene and preparation method thereof
  • Aminated fluorinated graphene and preparation method thereof
  • Aminated fluorinated graphene and preparation method thereof

Examples

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preparation example Construction

[0029] The preparation method of the present invention will be further described in detail in conjunction with specific examples below. It should be understood that the following examples are only for illustrating and explaining the present invention, and should not be construed as limiting the protection scope of the present invention. All technologies realized based on the above contents of the present invention are covered within the scope of protection intended by the present invention.

[0030] The experimental methods used in the following examples are conventional methods unless otherwise specified; the reagents and materials used in the following examples can be obtained from commercial sources unless otherwise specified.

[0031] Instruments and Equipment

[0032] The electron micrographs of this application were completed by the Phenom G2Pro desktop scanning electron microscope of Phenom-world company in the Netherlands.

Embodiment 1

[0034] Weigh 100 mg of graphene fluoride and 500 mg of ammonium chloride, grind them thoroughly with a mortar, pour them into an alumina crucible, place them in a tube furnace, raise the temperature to 300°C, keep it for 2 hours, and cool down naturally.

[0035] The above product was collected, dispersed into a mixed solution of 2-methylpyrrolidone and distilled water at a volume ratio of 1:1, filtered with suction, and washed three times with 2-methylpyrrolidone and distilled water respectively. The sample after suction filtration and washing was freeze-dried for 6 hours to obtain aminated fluorinated graphene powder.

[0036] figure 1 It is the powder diffraction pattern of the aminated fluorinated graphene of Example 1 of the present invention. From figure 1 It can be seen from the figure that the aminated fluorinated graphene has three typical fluorinated graphene diffraction peaks, the interlayer spacing is about 0.37nm by calculation, and the number of layers is betwe...

Embodiment 2

[0041] Weigh 100 mg fluorinated graphene and 1000 mg ammonium carbonate, grind them thoroughly with a mortar, pour them into an alumina crucible, place them in a tube furnace, raise the temperature to 400 °C, keep it for 1 hour, and cool down naturally.

[0042] The above product was collected, dispersed into a mixed solution of nitrogen-nitrogen dimethylformamide and distilled water with a volume ratio of 1:2, filtered with suction, and washed three times with nitrogen-nitrogen dimethylformamide and distilled water respectively. The sample after suction filtration and washing was freeze-dried for 12 hours to obtain aminated fluorinated graphene powder.

[0043] Figure 5 is the atomic content of fluorinated graphene before and after amination treatment in Example 2 of the present invention. From Figure 5 It can be seen from the figure that the content of nitrogen in aminated fluorinated graphene is 12.93%. Compared with Example 1, it can be found that increasing the amount...

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Abstract

The invention provides aminated fluorinated graphene and a preparation method thereof. A synthesis method disclosed by the invention does not require expensive raw materials, a complicated technologyand the like. Equipment and a technological process are relatively simple, the experience operability is strong, the preparation cost is low, and the period is short; in addition, the purity of an obtained product is high, and good synthesis basis is provided for further application of the aminated fluorinated graphene. The aminated fluorinated graphene in dozen-gram scale can be prepared in one time.

Description

technical field [0001] The invention is applicable to the field of modification of functional materials, and in particular relates to an aminated fluorinated graphene and a preparation method thereof. Background technique [0002] Fluorinated graphene is made by adding a fluorine atom around every carbon atom in graphene. Fluorinated graphene still retains the two-dimensional planar structure of graphene, and fluorine atoms interact with carbon atoms in the form of covalent bonds or ionic bonds outside the plane. The fluorine-carbon bond endows it with outstanding interface and physical and chemical properties such as adjustable band gap, low surface energy, strong hydrophobicity, excellent mechanical properties and high stability, making it both the structure and structure of graphene and Teflon. Performance characteristics, known as "two-dimensional Teflon". These unique properties make it have broad application prospects in ultra-thin and highly stable coatings, superhy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/194
CPCC01B32/194
Inventor 王要兵吴茂祥吕江泉
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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