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Preparation method of hetero-atom-doped graphyne

A technology of graphyne and doping elements, which is applied in the field of preparation of doped nanomaterials, to achieve the effects of easy control of the reaction process, change of chemical properties, and easy promotion and use

Inactive Publication Date: 2016-06-08
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the limitations of preparation methods and experimental conditions, the synthesis of graphyne was not first proposed by the Institute of Chemistry, Chinese Academy of Sciences until 2010, and the doping of graphyne is rarely reported.
Although there are many technical solutions for doping graphene and carbon nanotubes, the structure of graphyne (sp and sp 2 ) are different from graphene and carbon nanotubes (sp 2 ), so the doping of graphyne is a meaningful and challenging subject

Method used

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  • Preparation method of hetero-atom-doped graphyne

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Effect test

Embodiment 1

[0018] Dry 100mg of graphyne powder and place it in a porcelain boat, then place the porcelain boat in the middle of a clean quartz tube, put the quartz tube into a temperature-programmed tube furnace, and make the middle of the quartz tube in the temperature-programmed tube furnace Vacuumize the central area of ​​the center area, feed nitrogen, start the temperature program, rise to 500 ° C, feed ammonia in the nitrogen as a nitrogen source, and the doping reaction begins. After 6 hours of reaction, stop feeding ammonia, and the program is terminated. Continue cooling to room temperature with nitrogen gas.

Embodiment 2

[0020] Dry the graphdiyne film grown on the copper substrate, place it in a porcelain boat, then place the porcelain boat in the middle of a clean quartz tube, put the quartz tube into a temperature-programmed tube furnace, so that the middle of the quartz tube is at In the central area of ​​the temperature-programmed tube furnace, vacuumize, feed nitrogen, start the temperature program, rise to 500°C, feed ammonia in the nitrogen as the nitrogen source, and the doping reaction begins. After 6 hours of reaction, stop feeding ammonia gas, the program was terminated, and nitrogen gas was continued to cool to room temperature.

Embodiment 3

[0022] Dry 100mg of graphyne powder and place it in a porcelain boat, then place the porcelain boat in the middle of a clean quartz tube, put the quartz tube into a temperature-programmed tube furnace, and make the middle of the quartz tube in the temperature-programmed tube furnace Vacuumize the central area, feed nitrogen, start the temperature program, rise to 600 ° C, feed ammonia in the nitrogen as a nitrogen source, and the doping reaction begins. After 6 hours of reaction, stop feeding ammonia, and the program is terminated. Continue cooling to room temperature with nitrogen gas.

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Abstract

The invention discloses a preparation method of hetero-atom-doped graphyne, and belongs to the field of preparation of a doped nanometer material. The defect of single structure and performance of a graphyne material in the prior art can be overcome. The method comprises the following steps: drying a graphyne sample, putting the graphyne sample in a temperature programmed tubular furnace, beginning temperature programming, adding a simple substance or compound containing a doped element, and performing a reaction in a temperature range of 500-1500 DEG C to obtain the doped graphyne with the doped element substituted or added. The preparation method is simple in process and convenient to operate, and the doped graphyne can be obtained with no need of complex equipment. The preparation method is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of preparation of doped nanometer materials, in particular to a preparation method of heteroatom-doped graphyne. Background technique [0002] Graphdiyne is composed of sp and sp 2 A new type of carbon allotrope formed by hybridization, which is an all-carbon polymer with a two-dimensional planar network structure formed by conjugating benzene rings through alkyne bonds. The structure of graphyne is equivalent to separating the benzene rings of graphene, and then reconnecting them into a network structure through alkyne bonds. Therefore, graphyne has abundant carbon chemical bonds, large conjugated system, wide interplanar spacing, excellent chemical stability, and is reputed to be the most stable one among the synthetic alkyne bond-containing carbon allotropes. . Due to its special electronic structure and excellent semiconductor performance similar to silicon, it is expected to be widely used in the fields of ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02
CPCC01P2002/72C01P2002/82C01P2004/03C01P2004/04
Inventor 黄长水杜惠平何建江张明佳吕青李玉良
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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