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Method for preparing chemical iron-plated graphene through one-step activation method

An iron graphene and electroless plating technology, applied in liquid chemical plating, metal material coating process, coating, etc., can solve the problem that graphene is difficult to disperse uniformly, improve wettability, simplify process flow, reduce The effect of production costs

Active Publication Date: 2018-12-21
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the existing technical problems, the present invention provides a method for preparing electroless iron-coated graphene by a one-step activation method, which improves the wettability between graphene and the metal matrix, and solves the problem that graphene is difficult to disperse uniformly in the metal matrix. The problem

Method used

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  • Method for preparing chemical iron-plated graphene through one-step activation method
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  • Method for preparing chemical iron-plated graphene through one-step activation method

Examples

Experimental program
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Effect test

Embodiment 1

[0057] S1. Using the improved Hummers method: 1 g of natural graphite was placed in a beaker, mechanically stirred under an ice bath at 0° C., and 21 ml of concentrated sulfuric acid and 0.5 g of sodium nitrate were sequentially added to the beaker to obtain the first solution.

[0058]S2. Slowly add 3 g of potassium permanganate to the first solution under mechanical stirring to obtain a second solution. The temperature of the second solution is controlled at 20° C. and kept for 30 minutes.

[0059] S3. Raise the temperature of the second solution to 35°C and keep it for 60 minutes, then add 46ml of deionized water to the second solution, adjust the temperature of the second solution to not exceed 80°C, keep it for 15 minutes, then add 140ml of deionized water, 10ml volume fraction is 30% hydrogen peroxide, washed with 5% hydrochloric acid until the solution does not contain SO 4 2- ions, the solution was ultrasonically dispersed for 2 hours, filtered and washed twice, and t...

Embodiment 2

[0066] S1. Using the improved Hummers method: 1 g of natural graphite was placed in a beaker, mechanically stirred under an ice bath at 0° C., and 21 ml of concentrated sulfuric acid and 0.8 g of sodium nitrate were sequentially added to the beaker to obtain the first solution.

[0067] S2. Slowly add 4 g of potassium permanganate to the first solution under mechanical stirring to obtain a second solution. The temperature of the second solution is controlled at 20° C. and kept for 30 minutes.

[0068] S3. Raise the temperature of the second solution to 35°C and keep it for 60 minutes, then add 50ml of deionized water to the second solution, adjust the temperature of the second solution to not exceed 80°C, keep it for 15 minutes, then add 150ml of deionized water, 10ml volume fraction is 30% hydrogen peroxide, washed with 5% hydrochloric acid until the solution does not contain SO 4 2- ions, the solution was ultrasonically dispersed for 2 hours, filtered and washed twice, and ...

Embodiment 3

[0074] S1. Using the improved Hummers method: 1 g of natural graphite was placed in a beaker, mechanically stirred under an ice bath at 0° C., and 21 ml of concentrated sulfuric acid and 0.5 g of sodium nitrate were sequentially added to the beaker to obtain the first solution.

[0075] S2. Slowly add 3 g of potassium permanganate to the first solution under mechanical stirring to obtain a second solution. The temperature of the second solution is controlled at 20° C. and kept for 30 minutes.

[0076] S3. Raise the temperature of the second solution to 35°C and keep it for 60 minutes, then add 46ml of deionized water to the second solution, adjust the temperature of the second solution to not exceed 80°C, keep it for 15 minutes, then add 140ml of deionized water, 10ml volume fraction is 30% hydrogen peroxide, washed with 5% hydrochloric acid until the solution does not contain SO 4 2- ions, the solution was ultrasonically dispersed for 2 hours, filtered and washed twice, and ...

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Abstract

The invention belongs to the technical field of preparing metal matrix composite reinforcements and particularly relates to a method for preparing chemical iron-plated graphene through a one-step activation method. By means of the method for preparing the chemical iron-plated graphene through the one-step activation method, the oxidized graphene is put in activating liquid, homogenizing operationis conducted, filtering is conducted, filter liquid is reserved, washing is conducted, the graphene is washed to be neutral, and activated oxidized graphene is obtained; the activating liquid is a precious metal salt complex solution; and the activated oxidized graphene is subjected to ultrasonic dispersion, then a chemical iron plating solution is added, mixing is conduced, a reaction is carriedout, and the chemical iron-plated graphene is obtained. By means of the method, wettability between the graphene and a metal matrix is improved, and the problem that the graphene is hardly dispersed evenly in the metal matrix is solved. Meanwhile, a one-step activation technology is adopted, the technical process is simplified, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of preparing metal-matrix composite material reinforcements, and in particular relates to a method for preparing electroless iron-plated graphene by a one-step activation method. Background technique [0002] Compared with traditional matrix alloys, metal matrix composites have high specific strength, specific modulus, excellent high-temperature mechanical properties, wear resistance, and low thermal expansion coefficient. They have very broad applications in aviation, aerospace, automotive, electronics, and transportation industries. Application prospect. [0003] According to different reinforcements, metal matrix composites can be divided into fiber reinforced metal matrix composites, particle reinforced metal matrix composites and whisker reinforced metal matrix composites. [0004] Graphene is the strongest substance known to man, harder than diamond, 100 times stronger than the best steel in the world...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/52C23C18/18
Inventor 李斌川刘奎仁王春新韩庆陈建设曲晨池
Owner NORTHEASTERN UNIV
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