Nitrogen-doped graphene nanobelt and preparation method thereof

A nitrogen-doped graphene and nanobelt technology, applied in graphene, nanocarbon, nanotechnology and other directions, can solve the problems of difficulty in size control and low yield, and achieve a simple preparation process, lower reaction temperature, and easily controllable conditions. Effect

Active Publication Date: 2014-06-04
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Description
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Problems solved by technology

However, due to the difficulty of size control and low yield in the...

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  • Nitrogen-doped graphene nanobelt and preparation method thereof
  • Nitrogen-doped graphene nanobelt and preparation method thereof
  • Nitrogen-doped graphene nanobelt and preparation method thereof

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[0024] The preparation process of the nitrogen-doped graphene nanobelt of the present invention is roughly divided into the following steps: 1. Etching the substrate: putting the substrate into a dilute acid solution with a concentration of 0.01 to 1mol / L and etching it for 0.5 to 10 minutes, Clean with deionized water, ethanol, acetone after etching.

[0025] The purpose of this step is to: produce defects on the etched surface of the metal substrate by etching the metal substrate, effectively improve the surface structure of the metal substrate, and enable carbon nanowalls to grow on the surface of the metal substrate.

[0026] Wherein, the preferred time for etching the metal substrate is 60-180 seconds, and the preferred acid solution concentration for etching the metal substrate is 0.1-0.5 mol / L. The above optimal etching conditions can achieve a good etching effect and improve the growth efficiency of the carbon nanowall.

[0027] 2. Preparation of carbon nanowall: Put ...

Embodiment 1

[0039] Example 1: 1. Etching the substrate: put the nickel foil into a dilute hydrochloric acid solution with a concentration of 1 mol / L and etch for 0.5 minutes, and clean it with deionized water, ethanol, and acetone after etching.

[0040] 2. Preparation of carbon nanowall: Put the cleaned nickel foil into the reaction chamber and remove the air in the reaction chamber, heat the nickel foil to 900°C, and then turn on the ultraviolet light source equipment to irradiate the ultraviolet light on the nickel foil On the surface, carbonaceous material methane (flow rate of 200sccm) and protective gas nitrogen are introduced, and the volume ratio of methane to nitrogen is 2:1, and kept for 100 minutes.

[0041] After the reaction is completed, stop feeding the carbon-containing substances, stop heating the nickel foil and turn off the light source equipment, stop feeding the protective gas after the reaction chamber is cooled to room temperature, and obtain a carbon nanometer wall ...

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Abstract

The invention relates to a nitrogen-doped graphene nanobelt and a preparation method thereof. The preparation method comprises the following steps: preparing a carbon oxide nano wall slurry; and preparing the nitrogen-doped graphene nanobelt. In the nitrogen-doped graphene nanobelt preparation process, a technique of mixing the nitrogen source and carbon oxide nano wall by a liquid phase is utilized, so that the nitrogen-doped graphene nanobelt has the advantages of better doping effect and favorable uniformity; and the ionic liquid used as the solvent can effectively prevent the graphene nanobelt from reaggregation, so that the preparation process can be completed through simple separation and drying.

Description

technical field [0001] The invention relates to the field of chemical material synthesis, in particular to a nitrogen-doped graphene nanobelt and a preparation method thereof. Background technique [0002] Types of carbon materials include zero-dimensional fullerenes (C 60 etc.), one-dimensional carbon nanotubes, carbon nanofibers, etc., two-dimensional graphene, three-dimensional graphite, diamond, etc. Carbon nanowalls (abbreviated as CNW) are carbon nanostructures with a two-dimensional diffusion structure. Leenes, carbon nanotubes, graphene, etc. have completely different characteristics and can be used as raw materials for preparing other carbon materials. [0003] Graphene nanoribbons not only have the performance of graphene, but also have some special properties, such as its large aspect ratio, which can be as high as thousands of times, and can replace copper wires in integrated circuits to further improve integration. Its structure is modified to prepare switchi...

Claims

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Application Information

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IPC IPC(8): C01B31/04B82Y30/00C01B32/184
CPCY02P20/54
Inventor 周明杰袁新生王要兵钟辉
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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