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Two-dimensional metal organic alkyne nanosheet as well as preparation method and application thereof

A metal-organic, alkyne nanotechnology, applied in nanotechnology, nanotechnology, nano-optics, etc., can solve the problems of uncontrollable thickness and uneven structure of two-dimensional nanosheets, achieving simple method, controllable thickness, and easy availability of raw materials. Effect

Pending Publication Date: 2021-03-16
THE HONG KONG POLYTECHNIC UNIV SHENZHEN RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a two-dimensional metal-organic alkyne nanosheet and its preparation method and application, aiming to solve the problems of uneven structure and uncontrollable thickness of two-dimensional nanosheets in the prior art

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  • Two-dimensional metal organic alkyne nanosheet as well as preparation method and application thereof
  • Two-dimensional metal organic alkyne nanosheet as well as preparation method and application thereof
  • Two-dimensional metal organic alkyne nanosheet as well as preparation method and application thereof

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preparation example Construction

[0049] In one embodiment of the present invention, the preparation method of the two-dimensional metal organic alkyne nanosheets comprises the following steps:

[0050] S11. providing a substrate, placing the substrate in the container;

[0051] S12. Dissolving the organic alkyne ligand in the first organic solution to obtain the first mixture; dissolving the metal compound in deionized solution to obtain the second mixture, measuring the same volume of the first mixture and the second mixture The second mixture is put into the container, and then the catalyst is added to obtain the third mixture; the third mixture is left to react and then cleaned to obtain two-dimensional metal organic alkyne nanosheets grown on the surface of the base material.

[0052] Specifically, in the above step S11, a substrate is provided, and the substrate is placed in a container; the specific operation steps are as described in the above step S01, and will not be repeated here.

[0053] Specific...

Embodiment 1

[0071] Prepare a two-dimensional metal-organic alkyne nanosheet, the organic alkyne ligand is selected from tris(4-ethynylphenyl)amine, the metal compound is selected from mercuric chloride, and the catalyst is selected from triethylamine; the preparation of the two-dimensional metal-organic alkyne nanosheet method, comprising the steps of:

[0072] Provide a quartz plate to be placed in the container;

[0073] Dissolve 3.0mg of the tris(4-ethynylphenyl)amine in 5ml of hexane to obtain the first mixture; dissolve 6.0mg of mercuric chloride in 10mL of deionized to obtain the second mixture, measure the same volume of the first mixture A mixture and the second mixture are added to the container, and a drop of triethylamine is added to obtain the third mixture;

[0074] The third mixture is left to stand for 2 to 200 hours, and then cleaned, and the two-phase interface generates light yellow two-dimensional mercury-organic alkyne nanosheets, and two-dimensional metal-organic alk...

Embodiment 2

[0077] Prepare a two-dimensional metal-organic alkyne nanosheet, the organic alkyne ligand is selected from 1,3,5-triethynylbenzene, the metal compound is selected from mercuric chloride, and the catalyst is selected from triethylamine; the preparation of the two-dimensional metal-organic alkyne nanosheet method, comprising the steps of:

[0078] Provide a quartz plate to be placed in the container;

[0079] Dissolve 1.4mg of the 1,3,5-triethynylbenzene in 10ml of hexane to obtain the first mixture; dissolve 5.5mg of mercuric chloride in 10mL of deionized water to obtain the second mixture, measure the same volume of the first A mixture and the second mixture are added to the container, and a drop of triethylamine is added to obtain the third mixture;

[0080] The third mixture is left to stand for 2 to 200 hours, and then cleaned, and the two-phase interface generates transparent two-dimensional mercury-organic alkyne nanosheets to obtain two-dimensional metal-organic alkyne...

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Abstract

The invention provides a two-dimensional metal organic alkyne nanosheet, and the structural general formula of the two-dimensional metal organic alkyne nanosheet is shown in the specification, and inthe formula, R is an organic alkyne ligand at least containing three alkynyl groups and one benzene ring, M is a metal ligand containing divalent or higher metal ions, 3<=m<=6, and n>=3. Alkynyl in the organic alkyne ligand can react with the metal ligand to be in bonding connection, a stable cross-linked net structure is formed, and then the regularly repeated planar two-dimensional metal organicalkyne nanosheet with the cross-linked structure is formed. Due to the fact that the added organic alkyne ligand is single in structure and fixed to a specific metal ligand bonding reaction site, thethickness of a formed net-shaped structure is controllable, and therefore the prepared planar two-dimensional metal organic alkyne nanosheet is controllable in thickness, stable in performance and beneficial to follow-up use.

Description

technical field [0001] The invention relates to the field of nonlinear optical materials, in particular to a two-dimensional metal organic alkyne nanosheet and its preparation method and application. Background technique [0002] In the past ten years, two-dimensional nanomaterials represented by graphene have become the focus of researchers. In terms of optics, due to the characteristics of wide absorption wavelength, short response time, and low optical loss, two-dimensional nanomaterials and bulk materials show excellent saturable absorption properties, and have broad application prospects in the field of laser modulation. At the same time, with the continuous development of short-pulse laser technology in recent years, the passive Q-switching and mode-locking technology of all-solid-state lasers based on saturable absorbers has gradually become an important means for studying the microcosm, information communication and fine processing of materials. . [0003] The perf...

Claims

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Application Information

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IPC IPC(8): C08G83/00H01S3/11H01S5/06B82Y20/00B82Y30/00B82Y40/00
CPCC08G83/008H01S3/11H01S5/06B82Y20/00B82Y30/00B82Y40/00
Inventor 黄维扬许林利张红阳
Owner THE HONG KONG POLYTECHNIC UNIV SHENZHEN RES INST
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