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A method for the preparation of graphene and carbon nanotube hybrids based on electroless copper-plated SIC particles

A technology of electroless copper plating and carbon nanotubes, which is applied in the direction of carbon nanotubes, graphene, carbon compounds, etc., can solve the problems of particle agglomeration, affecting the mechanical properties of composite materials, and the metal matrix is ​​easy to bond with carbon to produce intermediate metal compounds, etc. , to achieve the effect of solving the reunion phenomenon, suitable for large-scale production, and high cost performance

Inactive Publication Date: 2019-03-29
XIJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, researchers have begun to use smelting and powder metallurgy methods to try to develop new materials. Nanomaterials such as fullerene, carbon nanotubes, and graphene are added to the base material to form metal matrix composites. It is initially found that the mechanical properties have been improved. Problems such as particle agglomeration, high preparation temperature, and the easy bonding of molten metal matrix with carbon to produce intermediate metal compounds seriously affect the mechanical properties of composite materials.

Method used

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  • A method for the preparation of graphene and carbon nanotube hybrids based on electroless copper-plated SIC particles
  • A method for the preparation of graphene and carbon nanotube hybrids based on electroless copper-plated SIC particles
  • A method for the preparation of graphene and carbon nanotube hybrids based on electroless copper-plated SIC particles

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Alkaline pickling of SiC particles, followed by pouring of SnCl 2 solution was sensitized and then poured into PbCl 2 The solution is activated. Add 2.8 g of copper sulfate, 13.32 g of EDTA, 0.03 g of 2-2'bipyridine, 0.08 g of yellow blood salt, 24.065 g of sodium hydroxide, 0.8 g of activated SiC particles and 5.4 ml of formaldehyde in the container; Wash with water and an ultrasonic cleaner (53 Hz), and then dry to obtain electroless copper-plated SiC particles.

[0027] Put the electroless copper-plated SiC particles into the quartz tube of the chemical vapor deposition preparation system, then pump the pressure in the tube to below 1Pa, and then carry out the following four-stage growth procedure: (1) Introduce hydrogen into the equipment at 0.02 L / min, reduce copper, and use the RTA heating lamp to heat to 1000°C; (2) feed methane at 0.04 L / min as the growth source, and continuously feed hydrogen to prevent the graphene from growing too fast, and then increase th...

Embodiment 2

[0029] Raman spectrum analysis was performed on the electroless copper-plated SiC particles modified by the mixture of graphene and carbon nanotubes prepared in Example 1, and a circle with a diameter of 2 μm on the surface of the material was detected, and the laser wavelength was set to 532 nm. Raman spectra of graphene detected as figure 1 As shown, the characteristic peak of the curve is mainly the D peak (1360cm -1 ), G peak (1585cm -1 ) and 2D peak (2687cm -1 ). Electroless Copper Particle I D / I G The value is 0.61, I G / I 2D The value is 2.8, and it can be judged that the product contains multilayer graphene.

[0030] SEM photographs were taken of the electroless copper-plated SiC particles modified by the mixture of graphene and carbon nanotubes prepared in Example 1. figure 2 In order to use the SEM morphology of graphene generated by chemical vapor deposition, the enlarged shape of the material in the circle in the figure is as follows image 3 As shown, t...

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Abstract

The invention relates to a method for preparing a graphene and carbon nanotube mixture based on electroless copper-SiC particles. The graphene and carbon nanotube mixture is prepared through growing graphene on the surface of electroless copper-SiC by adopting a chemical vapor deposition technology. The method concretely comprises the following steps: 1, activating SiC particles; 2, preparing the electroless copper-SiC particles; and 3, growing the graphene and carbon nanotube mixture. The method for preparing the graphene and carbon nanotube mixture based on the electroless copper-SiC particles allows the graphene and carbon nanotube mixture to grow on the surfaces of the electroless copper-SiC particles in order to effectively solve the aggregation of a graphene reinforcement material in a parent material and improve the mechanical performances of the material. The preparation method has high cost performance, and is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of chemistry and chemical engineering, and in particular relates to a method for preparing a mixture of graphene and carbon nanotubes based on electroless copper-plated SiC particles. Background technique [0002] Graphene is made of carbon atoms with sp 2 The flat film of the hexagonal honeycomb lattice composed of orbital domains is about 0.35nm thick. It is the thinnest and hardest nanomaterial at present. The carbon atoms can be bent and deformed by applying force, and the carbon atoms do not need to be rearranged to adapt to the external force. , good toughness performance. It is also the basic unit that constitutes other carbon allotropes. It forms one-dimensional carbon nanotubes after curling, zero-dimensional fullerenes after folding, and three-dimensional graphite after stacking. [0003] Graphene has good mechanical properties, Young's modulus is as high as 1TPa (6 times that of steel), and its tensile st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/186C01B32/158
CPCC01B2202/36C01B2204/04C01P2002/82C01P2004/03
Inventor 刘守法
Owner XIJING UNIV