Preparation method of graphdiyne film and graphdiyne film

A technology of graphyne and film, which is applied in the field of graphyne, can solve the problems of restricting mass production, application field restrictions, and low yield of graphyne, and achieves the effects of easy industrial production, improving utilization rate, and shortening reaction time

Active Publication Date: 2020-06-26
QINGDAO UNIV OF SCI & TECH
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  • Description
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Problems solved by technology

[0005] However, the yield of graphyne synthesized by chemical methods is low and the production cost is high, which limits its

Method used

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  • Preparation method of graphdiyne film and graphdiyne film
  • Preparation method of graphdiyne film and graphdiyne film
  • Preparation method of graphdiyne film and graphdiyne film

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[0033] In view of this, in one aspect of the present invention, the present invention proposes a preparation method of a graphdiyne film. According to an embodiment of the present invention, the method includes: (1) mixing a catalyst with water to obtain a catalyst solution; (2) mixing a monomer with an organic solvent to obtain a monomer solution, and adding four Butyl ammonium fluoride, obtain hexa-alkynyl benzene solution; (3) mix described hexa-alkynyl benzene solution, described catalyst solution and water, mix under the effect of inert gas atmosphere and stirring to obtain mixed solution; (4 ) reacting the mixed solution, and separating the graphyne film from the reaction product; wherein, the monomer is a compound shown in formula (I),

[0034]

[0035] According to the method for preparing a graphyne film according to an embodiment of the present invention, first, a catalyst solution and a hexaynylbenzene solution are prepared respectively, wherein the catalyst solu...

Embodiment 1

[0062] (1) Dissolve 0.25 mg of copper acetate and 2.5 mL of pyridine in 2.5 mL of distilled water to form a catalyst solution, and blow nitrogen into the catalyst solution to remove oxygen;

[0063] (2) Dissolve 3.6 mg of monomer in 1 mL of dichloromethane to prepare a monomer solution with a concentration of 3.6 mg / mL, blow nitrogen into the monomer solution to remove oxygen; then add 36 μL TBAF solution (1mol / L tetrahydrofuran solution ), shaking reaction 1min, obtains the hexa-alkynylbenzene solution;

[0064] (3) Mix 1mL of hexaynylbenzene solution, 0.3mL of catalyst solution, and 8.7mL of distilled water. The ratio of the volume of hexaynylbenzene solution to the volume of catalyst solution and distilled water is 1:9. Under the protection of inert gas and stirring Mix it evenly to obtain a mixed solution;

[0065] (4) After the mixed solution was reacted for 3 days, the liquid was removed, and the product was cleaned, and the obtained solid was graphyne, and the yield of...

Embodiment 2

[0067] (1) Dissolve 0.25 mg of copper acetate and 2.5 mL of pyridine in 2.5 mL of distilled water to form a catalyst solution, and blow nitrogen into the catalyst solution to remove oxygen;

[0068] (2) Dissolve 3.6 mg of monomer in 1 mL of chloroform to prepare a monomer solution with a concentration of 3.6 mg / mL, blow nitrogen into the monomer solution to remove oxygen; then add 36 μL of TBAF solution (1mol / L tetrahydrofuran solution), shaking and reacting for 1min to obtain a hexaacetylenylbenzene solution;

[0069] (3) Mix 1mL of hexaynylbenzene solution, 0.3mL of catalyst solution, and 8.7mL of distilled water. The ratio of the volume of hexaynylbenzene solution to the volume of catalyst solution and distilled water is 1:9. Under the protection of inert gas and stirring Mix it evenly to obtain a mixed solution;

[0070] (4) After the mixed solution was reacted for 3 days, the liquid was removed, and the product was cleaned, and the obtained solid was graphyne, and the yi...

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Abstract

The invention discloses a preparation method of a graphdiyne film and the graphdiyne film prepared by the method. The method comprises the following steps: (1) mixing a catalyst with water to obtain acatalyst solution; (2) mixing a monomer with an organic solvent to obtain a monomer solution, and adding tetrabutylammonium fluoride into the monomer solution to obtain a hexaalkynyl benzene solution; (3) mixing the hexaalkynyl benzene solution, the catalyst solution and water, and uniformly mixing in an inert gas atmosphere under the action of stirring to obtain a mixed solution; and (4) reacting the mixed solution, and separating from the reaction product to obtain the graphdiyne film. Through the method, the graphdiyne film with high yield can be simply and efficiently obtained, and industrial production is easy.

Description

technical field [0001] The invention relates to the technical field of graphyne, in particular, the invention relates to a method for preparing a graphyne film, and a graphyne film prepared by the method. Background technique [0002] Graphdiyne is composed of sp and sp 2 A new type of all-carbon material composed of hybrid carbon atoms, graphyne is equivalent to the conjugation of benzene rings by alkyne bonds, and then forms an all-carbon polymer with a two-dimensional planar network structure. Therefore, graphyne has a large number of carbon chemical bonds, a large conjugated system and a wide interplanar spacing, and has good chemical stability. [0003] First-principle calculations show that graphyne has a natural band gap energy compared to graphene, which has a zero band gap energy. This directly existing bandgap enables graphyne to be directly and practically applied in the preparation of optoelectronic devices. The conductivity of the graphyne film is 2.52×10 -4...

Claims

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Application Information

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IPC IPC(8): C01B32/205
CPCC01B32/205
Inventor 李志波赵英杰王丹博阚晓楠
Owner QINGDAO UNIV OF SCI & TECH
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