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Method for preventing metal corrosion through graphene depending on crystal surface

A technology of metal corrosion and graphene, which is applied in the field of crystal plane-dependent graphene protection against metal corrosion, can solve problems such as corrosion, and achieve the effects of cost reduction, low cost, and simple process

Active Publication Date: 2018-02-27
PEKING UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Previously, it was found that although the graphene protective layer can protect copper from corrosion at high temperature for a short period of time, it will accelerate corrosion in the long run due to the effect of electrochemical corrosion.

Method used

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  • Method for preventing metal corrosion through graphene depending on crystal surface
  • Method for preventing metal corrosion through graphene depending on crystal surface
  • Method for preventing metal corrosion through graphene depending on crystal surface

Examples

Experimental program
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Embodiment 1

[0017] Embodiment one: a kind of method that the graphene protection metal corrosion of crystal face depends on, comprises the steps:

[0018] (1), graphene is grown on the surface of copper foil by atmospheric pressure chemical vapor deposition;

[0019] (2) Place the copper foil sample covered with graphene in the atmosphere for natural oxidation for 1 month to 2 years;

[0020] (3) After the sample is naturally oxidized, observe directly with an optical microscope, and you can see the protective effect of graphene on copper foil.

[0021] Among them, graphene is grown on the metal foil by chemical vapor deposition, or covered on the surface of the metal foil by transfer. The metal foil includes copper foil, nickel foil, etc., preferably copper foil. The specific copper crystal planes are Cu(111), Cu(311) and all crystal planes that are better matched to the graphene lattice.

[0022] The above-prepared foil covered with the Cu(111) crystal plane of graphene was placed in...

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Abstract

The invention provides a method for preventing metal corrosion through graphene depending on a crystal surface. According to the method, the surface of a metal foil piece is covered with the graphenethrough a chemical vapor deposition method and the like; and by means of the complete impenetrability of the graphene and the interaction effects between the graphene and a metal substrate, metal under natural oxidization, hot water steam fumigation and seawater environment is protected, and the metal is protected against corrosion. The method solves the oxidizing corrosion problem of the metal; and by means of a very simple method, protection of the graphene on the metal is achieved.

Description

technical field [0001] The invention relates to a method for protecting metal corrosion by crystal plane-dependent graphene. Background technique [0002] Copper is a widely cited non-ferrous metal material. It has good electrical conductivity, thermal conductivity, ductility, and low melting point. It is easy to smelt and facilitate large-scale and low-cost industrial production and processing. Therefore, it is widely used in the electrical industry. , light industry, machinery manufacturing, construction industry, defense industry, etc. In the application of copper, a serious problem is the oxygen-containing corrosion of copper: when copper is exposed to the air for a long time, the oxygen and water vapor in the air will react with copper to form copper oxide, which greatly affects the corrosion of copper. The quality of the product even directly affects the normal function of the copper product. At present, in order to avoid oxygen-containing corrosion of copper, people...

Claims

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Application Information

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IPC IPC(8): C23F15/00
CPCC23F15/00
Inventor 徐小志俞大鹏王恩哥刘开辉
Owner PEKING UNIV
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