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Method for synthesizing carbon nano tube flower through chemical vapor deposition

A chemical vapor deposition, carbon synthesis technology, applied in the chemical industry, nanotechnology, climate sustainability, etc., can solve the problems of poor mechanical properties and chemical stability, high energy consumption, poor wear resistance, etc. The effect of low requirements, low energy consumption and convenient operation

Active Publication Date: 2016-11-16
聚源材料科技(遵义)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a lightweight, corrosion-resistant metal, titanium has poor mechanical properties and chemical stability; although titanium alloys have high strength, they have poor wear resistance. CNTs are used to improve the strength and wear resistance of titanium and alloys. Has high practical value
Liang Hao et al. used ferrocene as a catalyst to synthesize carbon nanotubes at 900°C (Chemical Vapor Deposition Preparation of Carbon Nanotubes, Materials Technology and Equipment, Technology and Research, Issue 4, 2014, p4~6), but the The method needs to synthesize carbon nanotubes at 900°C, which requires high energy consumption

Method used

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  • Method for synthesizing carbon nano tube flower through chemical vapor deposition
  • Method for synthesizing carbon nano tube flower through chemical vapor deposition
  • Method for synthesizing carbon nano tube flower through chemical vapor deposition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) Use titanium foil (such as figure 1 (a) is the substrate, and the substrate is pretreated, specifically: ultrasonic cleaning with acetone, ethanol and water for 10 minutes respectively → chemical degreasing → clean water cleaning → etching → clean water cleaning → drying; where:

[0024] In the chemical degreasing operation: the composition of the chemical degreasing liquid is: sodium hydroxide 15g / L, sodium carbonate 25g / L, OP emulsifier 5mL / L and the remainder of water; the substrate after ultrasonic cleaning is placed at 60℃ Remove oil from the oil removal liquid for 15 minutes;

[0025] During the etching operation: the composition of the etching solution is calculated by volume percentage: 30% hydrochloric acid, 5% hydrofluoric acid and the balance of water; the substrate after degreasing treatment is etched in the etching solution for 2 minutes, Clean with clean water;

[0026] 2) Put the pretreated substrate in a nickel plating solution for chemical deposition for 8...

Embodiment 2

[0032] 1) Using titanium foil as the substrate, the substrate is pretreated, specifically: ultrasonic cleaning with acetone, ethanol and water for 10 minutes respectively → chemical degreasing → clean water cleaning → etching → clean water cleaning → drying; among them:

[0033] In the chemical degreasing operation: the composition of the chemical degreasing liquid is: sodium hydroxide 10g / L, sodium carbonate 30g / L, OP emulsifier 3mL / L and the remainder of water; the substrate after ultrasonic cleaning is placed at 50℃ Remove oil from the oil removal liquid for 10 minutes;

[0034] During the etching operation: the composition of the etching solution is calculated by volume percentage: 20% hydrochloric acid, 3% hydrofluoric acid and the balance of water; the substrate after the degreasing treatment is etched in the etching solution for 2 minutes. Clean with clean water;

[0035] 2) Put the pretreated substrate in a nickel plating solution for chemical deposition for 10 minutes, and ...

Embodiment 3

[0038] 1) Using copper foil as the substrate, the substrate is pretreated, specifically: ultrasonic cleaning with acetone, ethanol and water respectively for 10 minutes→chemical degreasing→cleaning with clean water→etching→cleaning with clean water→drying; where:

[0039] In the chemical degreasing operation: the composition of the chemical degreasing liquid is: sodium hydroxide 12g / L, sodium carbonate 20g / L, OP emulsifier 2mL / L and the remainder of water; the substrate after ultrasonic cleaning is placed at 50℃ Remove oil from the oil removal liquid for 10 minutes;

[0040] During the etching operation: the composition of the etching solution is calculated by volume percentage: 25% hydrochloric acid, 2% hydrofluoric acid and the balance of water; the substrate after degreasing treatment is etched in the etching solution for 1 min. Clean with clean water;

[0041] 2) Put the pretreated substrate in a nickel plating solution for chemical chemical deposition for 5 minutes, and then pl...

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Abstract

The invention discloses a method for synthesizing a carbon nano tube flower through chemical vapor deposition. The method comprises steps as follows: 1) a base material is selected and pretreated; 2) the pretreated base material is put in a nickel plating solution for chemical deposition, taken out and dried, and a nickel catalyst supported base material is obtained; 3) the nickel catalyst supported base material is put in a tube furnace, the protective atmosphere is introduced, the tube furnace is heated to 350-400 DEG C in the protective atmosphere, and the protective atmosphere is closed; hydrogen is introduced into the tube furnace, the tube furnace is heated to 500-550 DEG C under the hydrogen condition, carbon-source gas is introduced into the tube furnace, hydrogen is taken as carrier gas, the material is subjected to chemical vapor deposition at the temperature of 500-550 DEG C for 80-110 min, a reactant is cooled in the protective atmosphere, and the carbon nano tube flower is obtained. According to the method, requirements for equipment are low, energy consumption is low, and the sizes of the nickel catalyst and the carbon nano tube flower are controllable.

Description

Technical field [0001] The invention relates to the preparation of carbon nanotubes, in particular to a method for synthesizing carbon nanotube flowers by chemical vapor deposition. Background technique [0002] Carbon nanotubes (CNTs) have the characteristics of extremely high strength, good toughness, electrical conductivity, large specific surface area, and high specific surface energy. It can be used in many fields such as large-scale integrated circuits, superconducting wires, semiconductor devices, field emission, and microelectronics. The introduction of CNTs into the metal matrix to prepare carbon nanotube-reinforced metal matrix composites is one of the methods to obtain high-performance metal materials. [0003] Titanium and titanium alloys have many advantages such as low density, high strength, corrosion resistance, high temperature resistance, and low thermal expansion coefficient. Especially their high specific strength, are widely used in the fields of national defe...

Claims

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Application Information

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IPC IPC(8): C01B31/02B82Y40/00
CPCC01P2002/82C01P2004/03C01P2004/04Y02P20/10
Inventor 黄有国顾慈兵范海林陈肇开孙铭雪施清清王红强李庆余
Owner 聚源材料科技(遵义)有限公司