Method of preparing graphdiyne-based material and a substrate for use in such material preparation process

Patent metadata

Field	Value
Publication number	US-11407641-B2
Application number	US-202016895170-A
Country	US
Kind code	B2
Filing date	Jun 8, 2020
Priority date	Jun 8, 2020
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

Abstract

A method of preparing graphdiyne-based material and a substrate for use in such material preparation process. The method includes the steps of: disposing an alkynye-based monomer on a substrate; maintaining a planar structure of each of a plurality of molecules of the monomer on a surface of the substrate; and initiating polymerization of the monomer on the substrate to synthesize a two-dimensional crystalline layer of the graphdiyne-based material on the substrate.

First claim

The invention claimed is:

1. A method of preparing a graphdiyne-based material comprising the steps of:
disposing an alkynye-based monomer on a substrate;
maintaining a planar structure of each of a plurality of molecules of the monomer on a surface of the substrate; and
initiating polymerization of the monomer on the substrate to synthesize a two-dimensional crystalline layer of the graphdiyne-based material on the substrate.

2. The method of preparing a graphdiyne-based material according to claim 1 , wherein the substrate is arranged to reduce chemisorption between each of the plurality of molecules of the monomer and the surface of the substrate.

3. The method of preparing a graphdiyne-based material according to claim 2 , wherein the reduction of chemisorption causes an increase in monomer-substrate distance, thereby preventing configuration distortion of each of the plurality of molecules of the monomer.

4. The method of preparing a graphdiyne-based material according to claim 1 , wherein the alkynye-based monomer comprising a structure of Formula (I):

wherein R 1 -R 6 are independently selected from hydrogen, a trimethylsilyl group, or a halogen.

5. The method of preparing a graphdiyne-based material according to claim 1 , wherein the alkynye-based monomer including the structure of Formula (I), and wherein R 1 -R 3 are identical and being H, SiMe 3 , Cl, Br, or I; and wherein R 4 -R 6 are identical and being H, C≡CSiMe 3 , Cl, Br, or I.

6. The method of preparing a graphdiyne-based material according to claim 1 , wherein the alkynye-based monomer including the structure of Formula (I), and wherein R 1 -R 6 are identical and being H.

7. The method of preparing a graphdiyne-based material according to claim 1 , further comprising the step of disposing a polymerization catalyst on the substrate, prior to the step of disposing the alkynye-based monomer on the substrate.

8. The method of preparing a graphdiyne-based material according to claim 7 , wherein the step of disposing a polymerization catalyst including the step of dissolving the polymerization catalyst in a solvent mixture.

9. The method of preparing a graphdiyne-based material according to claim 7 , wherein the polymerization catalyst includes PdCl 2 (PPh 3 ) 2 and CuI.

10. The method of preparing a graphdiyne-based material according to claim 8 , wherein the solvent mixture includes tetrahydrofuran and trimethylamine at a volume ratio of 1:1.

11. The method of preparing a graphdiyne-based material according to claim 1 , wherein the substrate is a zinc-based material.

12. The method of preparing a graphdiyne-based material according to claim 11 , wherein the zinc-based material includes zinc plate and zinc powder.

Assignees

• Univ City Hong Kong

Inventors

• Zhi Chunyi
• Yang Qi
• Guo Ying
• Tang Zijie

Classifications

• C01B32/05 Primary

  Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30 · CPC title

• C01P2002/20

  Two-dimensional structures · CPC title

• B01J23/8953

  with zinc, cadmium or mercury · CPC title

• B01J21/18

  Carbon · CPC title

• B01J27/1856

  with platinum group metals · CPC title