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Method for covering silver nano-film on copper material

A technology of silver nanosheets and silver salts, which is applied in metal material coating technology, liquid chemical plating, coating, etc., can solve the problems of uncontrollable silver morphology, etc., and achieve easy mass production, stable enhancement effect, anti-corrosion Strong oxidizing power

Active Publication Date: 2010-07-21
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing methods can only cover a layer of silver on the copper surface, but cannot control the morphology of this layer of silver.

Method used

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  • Method for covering silver nano-film on copper material
  • Method for covering silver nano-film on copper material
  • Method for covering silver nano-film on copper material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of the copper material covered with silver nanosheets, the steps are as follows:

[0020] 1) Weigh 2 mmol of silver nitrate and 1 mmol of 2-nitrobenzoic acid, dissolve in 70 milliliters of water and 30 milliliters of ethanol mixed solution;

[0021] 2) Soak 2 grams of copper foil into the above solution, let it stand for 5 minutes to react;

[0022] 3) Washing the copper material covered with silver nanosheets obtained in step 2) with water or ethanol.

Embodiment 2

[0023] Embodiment 2: The preparation method of copper material covered with silver nanosheets, the steps are the same as in Example 1, the difference is that silver acetate is used instead of silver nitrate.

Embodiment 3

[0024] Embodiment 3: The preparation method of the copper material covered with silver nanosheets, the steps are the same as in Example 1, the difference is that silver perchlorate is used instead of silver nitrate.

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PUM

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Abstract

The invention relates to a method for growing a silver nano-film on copper material, which belongs to the field of inorganic nano-material preparation. The method uses the replacement reaction between elemental copper and silver ions, takes nitrobenzoic acid as a control agent, and covers a layer of silver nano-film on the surface of the copper material. The method has the advantages of reasonable design, simple operation, easily controllable reaction, good repeatability and easy large-scale production. The silver nano-film has the advantages of uniform size, high distribution density, and very high conductivity and inoxidability. The method can be used in SERS, electronics industry and other fields.

Description

technical field [0001] The invention relates to a method for covering silver nanosheets on a copper material, belonging to the technical field of inorganic nanomaterial preparation. Background technique [0002] As conductive materials, silver and copper materials are widely used in the fields of conduction and electromagnetic shielding in various industries such as electronics, electromechanical, communications, printing, aerospace, and military industry. At the same time, it can shield electromagnetic waves, so that the product is not interfered by electromagnetic waves, and can also protect the human body from damage caused by electromagnetic radiation, as well as the conductive treatment of insulators. Silver has the best electrical conductivity among all metals, and silver nanomaterials are also the metal with the best surface-enhanced Raman scattering effect. Silver is stable and not easily oxidized. However, its high price and shortage of resources can only be used i...

Claims

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Application Information

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IPC IPC(8): C23C18/42
Inventor 占金华来永超
Owner SHANDONG UNIV
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