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Preparation method of nitrogen-doped graphene

A nitrogen-doped graphene and nitrogen source technology is applied in the field of high-temperature pyrolysis of melamine and glucose monohydrate to prepare nitrogen-doped graphene, which can solve the problems of low nitrogen content, complicated operation process, toxic precursors, etc. The route is clean and environmentally friendly, the preparation process is simple, and the raw materials are simple and easy to obtain.

Inactive Publication Date: 2015-07-08
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the above reports, it can be seen that the operation process is complicated, the equipment requirements are high, the cost is high, the precursor is poisonous, the environment is polluted, and the nitrogen content is low.

Method used

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  • Preparation method of nitrogen-doped graphene
  • Preparation method of nitrogen-doped graphene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Melamine and glucose monohydrate were weighed according to the mass ratio of 20:1, and then ground for 30 minutes with an agate mortar; Raise the temperature in the furnace cavity to 450 degrees Celsius at a certain heating rate and keep it warm for 90 minutes, then raise the temperature in the furnace cavity to 800 degrees Celsius at the same heating rate and keep it warm for 60 minutes; after the reaction is over, when the temperature in the furnace cavity is naturally cooled When it reaches room temperature, the product is taken out, which is nitrogen-doped graphene.

Embodiment 2

[0020] Melamine and glucose monohydrate were weighed according to the mass ratio of 20:1, and then ground for 30 minutes with an agate mortar; First raise the temperature in the furnace cavity to 450 degrees Celsius at a certain heating rate and keep it warm for 90 minutes, then raise the temperature in the furnace cavity to 900 degrees Celsius at the same heating rate and keep it warm for 60 minutes; after the reaction, when the temperature in the furnace cavity When naturally cooled to room temperature, the product was taken out, which was nitrogen-doped graphene.

Embodiment 3

[0022] Melamine and glucose monohydrate were weighed according to the mass ratio of 5:1, and then ground for 30 minutes with an agate mortar; First raise the temperature in the furnace cavity to 450 degrees Celsius at a certain heating rate and keep it warm for 90 minutes, then raise the temperature in the furnace cavity to 1000 degrees Celsius at the same heating rate and keep it warm for 60 minutes; after the reaction is over, when the temperature in the furnace cavity When naturally cooled to room temperature, the product was taken out, which was nitrogen-doped graphene.

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Abstract

The invention discloses a preparation method of nitrogen-doped graphene. The preparation method is realized through the following process: weighing melamine and dextrose monohydrate according to a certain mass ratio, grinding for 30min in an agate mortar; placing the mixture in a horizontal quartz tube furnace heating area, introducing argon in a certain flow as protective gas, raising the temperature in a furnace chamber to 450 DEG C in a certain rising rate, and carrying out heat preservation for 90min, raising the temperature in the furnace chamber to a certain temperature in the same rising rate, and carrying out heat preservation for 60min; after the reaction is finished, taking out the product when the temperature in the furnace chamber naturally cools to the room temperature, wherein the product is the nitrogen-doped graphene. The preparation method disclosed by the invention has the characteristics of easily available raw material, low cost, simple preparation process, clean and environment-friendly synthesis path, no pollution, and high nitrogen doping amount; the preparation method has popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of semiconductor nanomaterials and their preparation, and relates to a method for preparing nitrogen-doped graphene from a mixture of high-temperature pyrolysis melamine and glucose monohydrate. Background technique [0002] Graphene is a carbon atom sp 2 The hexagonal honeycomb lattice planar film composed of hybrid orbitals is a two-dimensional material with a thickness of only one carbon atom. Graphene exhibits rich and novel properties: such as large specific surface area, outstanding thermal conductivity, excellent electrical conductivity, super mechanical strength, good thermal / chemical stability, peculiar electrical and magnetic properties, etc. These excellent properties make graphene show potential application prospects in the fields of nano-devices, batteries / supercapacitors, composite materials, and hydrogen storage materials. However, pure graphene has a zero bandgap, which limits its further ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04
Inventor 简基康王兴
Owner XINJIANG UNIVERSITY
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