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Method for preparing nano platinum-coated gold particles film composite material

A composite material, gold particle technology, applied in metal material coating process, sputtering plating, ion implantation plating and other directions, can solve the problems of Au particle pollution, difficult particle fixation, complex technology, etc., to achieve low cost, Easy to operate, simple effect

Active Publication Date: 2015-08-05
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although people can prepare submicron and nanoscale gold films and gold particles by various methods in the laboratory, the prepared gold particles are basically free-state monodisperse particles or many particles are aggregated together, so it is difficult to These particles are fixed on the substrate or film surface
Although pure gold particles can be grown on the surface of the substrate or thin film by the template method, this method is technically complex, and it is easy to pollute the Au particles during the process of removing the template, so it is not suitable for industrial development.
[0008] In summary, it can be seen that it is difficult to grow Au particles that are well-bonded with the film on the surface of the film in the prior art, that is to say, it is difficult to prepare a gold film / gold particle composite structure, which means that it is difficult to prepare high-performance nano-particles. Platinum thin film coated gold particle film composite material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of nano-platinum-coated gold particle film composite material, comprising the following steps:

[0032] (1), polyimide substrate cleaning

[0033] Put the flexible polyimide matrix into a beaker filled with absolute ethanol, put the beaker into an ultrasonic cleaner for ultrasonic cleaning for 10 minutes, and then put the cleaned polyimide into a beaker filled with deionized water. Ultrasonic cleaning in the beaker for 5 minutes, drying the cleaned polyimide substrate with nitrogen, and then fixing the polyimide substrate on the substrate stage of the magnetron sputtering coating machine;

[0034] (2), target preparation and coating machine substrate stage heating

[0035] Place the Au target with a purity of 99.99at% and the Mo target with a purity of 99.99at% respectively on the target position of the coating machine. After placing the target and the polyimide substrate, close the vacuum chamber of the coating machine and turn on the mechanical pum...

Embodiment 2

[0041] A preparation method of nano-platinum-coated gold particle film composite material, comprising the following steps:

[0042] (1), polyimide substrate cleaning

[0043] Put the flexible polyimide matrix into a beaker filled with absolute ethanol, put the beaker into an ultrasonic cleaner for ultrasonic cleaning for 10 minutes, and then put the cleaned polyimide into a beaker filled with deionized water. Ultrasonic cleaning in the beaker for 10 minutes, drying the cleaned polyimide substrate with nitrogen, and then fixing the polyimide substrate on the substrate stage of the magnetron sputtering coating machine;

[0044] (2), target preparation and coating machine substrate stage heating

[0045] Place the Au target with a purity of 99.99at% and the Mo target with a purity of 99.99at% respectively on the target position of the coating machine. After placing the target material and the polyimide substrate, close the vacuum chamber of the coating machine, and turn on the ...

Embodiment 3

[0051] A preparation method of nano-platinum-coated gold particle film composite material, comprising the following steps:

[0052] (1), polyimide substrate cleaning

[0053] Put the flexible polyimide matrix into a beaker filled with absolute ethanol, put the beaker into an ultrasonic cleaner for ultrasonic cleaning for 15 minutes, and then put the cleaned polyimide into a beaker filled with deionized water. Ultrasonic cleaning in the beaker for 15 minutes, drying the cleaned polyimide substrate with nitrogen, and then fixing the polyimide substrate on the substrate stage of the magnetron sputtering coating machine;

[0054] (2), target preparation and coating machine substrate stage heating

[0055] Place the Au target with a purity of 99.99at% and the Mo target with a purity of 99.99at% respectively on the target position of the coating machine. After placing the target material and the polyimide substrate, close the vacuum chamber of the coating machine, and turn on the...

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Abstract

The invention relates to a method for preparing a nano platinum-coated gold particles film composite material, which comprises the following steps: preparing a gold-molybdenum alloy film on surface of a polyimide matrix, keeping a certain temperature for the matrix so that gold atoms can be promoted to grow for obtaining the gold particles on the surface of the alloy film, and then depositing the platinum film on the surface of the prepared gold particles film to obtain the product. The method employs a magnetron sputtering double target co-deposition technique to prepare the gold-molybdenum alloy film and a matrix in-situ heating technology , the nanogold film / gold particles composite material can be prepared without a template, the nano platinum-coated gold particles film composite material with large comparison area and high performance is sputtered and deposited on the surface of the nanogold film / gold particles composite material, compared with a pure platinum film, the specific surface area of the nano platinum-coated gold particles film is increased by more than 20%.

Description

technical field [0001] The invention relates to the field of preparation of micro- and nano-scale materials, in particular to a preparation method of a nano-platinum-coated gold particle film composite material. Background technique [0002] With the development of micro-nano science and technology, the excellent properties and broad application prospects of micro- and nano-scale films and particles have gradually been recognized by researchers and have aroused great interest from material scientists, physicists and chemists around the world. When the size reaches the nanometer level, the particles will show obvious quantum size effect, small size effect, surface effect and macroscopic quantum tunneling effect, and have broad application prospects in the fields of catalysis, light filtering, light absorption, medicine, magnetic media and new materials. . [0003] Due to good comprehensive performance and cost advantages, pure gold (Au) and its alloy materials have been ...

Claims

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Application Information

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IPC IPC(8): C23C14/35C23C14/20
Inventor 孙浩亮何孟杰陈艳芳朱宏喜谢敬佩魏明
Owner HENAN UNIV OF SCI & TECH
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