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Simple and easy method for directly growing carbon nano tube array on metal and application

A carbon nanotube array, direct technology, applied in the direction of single crystal growth, single crystal growth, crystal growth, etc., can solve the problems of difficult growth, dangerous carbon nanotube carrier gas, high solvent toxicity, etc., to improve safety and efficiency. Reliability, improve condensation heat transfer efficiency, strong bonding effect

Active Publication Date: 2017-11-28
NORTHEAST GASOLINEEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to solve the low structural strength of existing carbon nanotubes and silicon substrates, it is difficult to grow carbon nanotubes on metal substrates and the risk of carrier gas used to grow carbon nanotubes on the alloy surface, the solvent is highly toxic, and is not suitable for industrialization To solve the problem of generalization, and to provide a simple method and application of directly growing carbon nanotube arrays on metal

Method used

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  • Simple and easy method for directly growing carbon nano tube array on metal and application
  • Simple and easy method for directly growing carbon nano tube array on metal and application
  • Simple and easy method for directly growing carbon nano tube array on metal and application

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specific Embodiment approach 1

[0030] Specific Embodiment 1: This embodiment is a simple method for directly growing carbon nanotube arrays on metal, which is specifically completed according to the following steps:

[0031] 1. Etching treatment:

[0032] First, immerse the metal substrate in acid and etch for 3-5 minutes, then take out the metal substrate, use organic solvent as the cleaning agent, and ultrasonically clean it for 5-10 minutes at an ultrasonic power of 80W-100W, and then use deionized water as the cleaning agent. Ultrasonic cleaning at an ultrasonic power of 80W to 100W for 5min to 10min, and then drying with nitrogen to obtain an etched metal substrate; place the etched metal substrate in a quartz boat, and then put the quartz boat into a tube furnace the reaction zone;

[0033] 2. Add 1000mL min to the tube furnace -1 ~1500mL·min -1 The gas flow rate of the nitrogen gas is passed through for 10min to 20min, and then the flow rate of the nitrogen gas is adjusted to 100mL·min -1 ~500mL·...

specific Embodiment approach 2

[0046] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the acid described in the step one is that the mass fraction is 35%~37% hydrochloric acid, the mass fraction is 65%~70% nitric acid and the mass fraction is One of 50% to 60% sulfuric acid or a mixture of several of them. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0047] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the metal substrate described in step 1 is stainless steel. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a simple and easy method for directly growing a carbon nano tube array on metal and application, and relates to a method of modification on the surface of the metal and application. The invention aims at solving the problems that an existing carbon nano tube is low in structural strength with a silicon substrate, the carbon nano tube is quite difficultly grown on a metal substrate, a carrier gas used for growing the carbon nano tube on the surface of an alloy is dangerous, a solvent is high in toxicity and the industrialized popularization is unsuitable. The method comprises the following steps of I, carrying out etching treatment, II, introducing nitrogen, and starting a tube furnace; III, injecting mixed liquor of ferrocene and cyclohexane, and reacting for 30min to 120min; IV, closing the tube furnace, and naturally cooling to room temperature under the protection of the nitrogen, so that the metal substrate is obtained, wherein the carbon nano tube array is grown on the surface of the metal substrate. The carbon nano tube array prepared by the simple and easy method has the shear bond strength, which reaches 0.95MPa, with the metal substrate. The invention can be used for obtaining the simple and easy method for directly growing the carbon nano tube array on the metal.

Description

technical field [0001] The invention relates to a method and application of metal surface modification. Background technique [0002] In recent years, the wide application value of superhydrophobic surfaces in self-cleaning, metal protection, microfluidic control, anti-frosting and other fields has attracted the attention of many researchers. Generally, superhydrophobic surfaces are generated by the combination of certain roughness and low surface free energy. These low surface energy materials are generally organic compounds containing silicon or fluorine, which will seriously deteriorate the thermal and electrical conductivity of the surface. Since Iijima discovered carbon nanotubes in 1991, they have attracted much attention due to their unique structure, excellent performance and broad application prospects. Among them, carbon nanotubes have been applied to the field of superhydrophobic coatings due to their special thermal and hydrophobic properties. Molecular dynami...

Claims

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Application Information

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IPC IPC(8): C30B29/60C30B29/02C30B25/18C30B25/02
CPCC30B25/02C30B25/186C30B29/02C30B29/602
Inventor 赵海谦王忠华高杏存武传燕刘立君刘晓燕
Owner NORTHEAST GASOLINEEUM UNIV
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