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Graphene quantum dot composite plating solution, preparation method and electroplating process

A technology of graphene quantum dots and composite plating solution, applied in electrolytic coatings, coatings, etc., can solve problems such as unstable mechanical properties of nickel-based materials, increase nucleation rate, reduce open circuit potential value, and improve corrosion resistance sexual effect

Pending Publication Date: 2022-04-12
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve technical problems such as unstable mechanical properties of nickel-based materials prepared by composite electrodeposition, and to provide a graphene quantum dot composite plating solution, preparation method and electroplating process

Method used

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  • Graphene quantum dot composite plating solution, preparation method and electroplating process
  • Graphene quantum dot composite plating solution, preparation method and electroplating process
  • Graphene quantum dot composite plating solution, preparation method and electroplating process

Examples

Experimental program
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Effect test

Embodiment 1

[0041] 1) Add graphene quantum dots to deionized water with a total preparation volume of 1 / 2, and magnetically stir for 50 minutes under dark and ultrasonic conditions to obtain a solution;

[0042] 2) Add nickel sulfate, nickel chloride, boric acid and organic additives (sodium lauryl sulfate) to deionized water of 1 / 2 of the total preparation amount, and magnetically stir for 20 minutes under ultrasonic conditions to obtain a mixed solution;

[0043] 3) the graphene quantum dot solution prepared in step 1) is mixed with the mixed solution prepared in step 2), and magnetically stirred for 50 min under dark and ultrasonic conditions, and TMN surfactant is added during the stirring process to obtain graphene quantum dots Composite solution, the concentration of each component in the composite solution is as follows

[0044]

[0045] The speed of magnetic stirring in step 1)-3) is selected 300r / min;

[0046] 4) The pretreated (i.e. derusted with dilute hydrochloric acid, sa...

Embodiment 2

[0048] The difference between embodiment 2 and embodiment 1 is that the addition of graphene quantum dots in the graphene quantum dot composite solution is different, and in step 3) the concentration of graphene quantum dots in the graphene quantum dot composite solution prepared is: 1.5g / L. All the other steps are the same as in Example 1.

Embodiment 3

[0050] The difference between embodiment 3 and embodiment 1 is that the addition of graphene quantum dots in the graphene quantum dot composite solution is different, and in step 3) the concentration of graphene quantum dots in the graphene quantum dot composite solution prepared is: 2.0g / L. All the other steps are the same as in Example 1.

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Abstract

The invention discloses a graphene quantum dot composite plating solution, a preparation method and an electroplating process. The composite plating solution comprises graphene quantum dots, nickel sulfate, nickel chloride, boric acid, an organic additive and a TMN surfactant. According to the preparation method, quasi-zero-dimensional material graphene quantum dots are introduced into a plating solution prepared by taking NiSO4 as main salt, and the Ni-GQDs composite coating is prepared on a copper substrate through a supercritical electro-deposition method; the graphene quantum is added into the plating layer, the disorder degree of metal crystal faces can be effectively improved, nucleation growing points are increased, continuous growth of crystals is inhibited, the structure is refined, the surface performance of the plating layer is improved, and then the corrosion resistance, hardness and abrasion resistance of the composite plating layer are comprehensively improved.

Description

technical field [0001] The invention belongs to the technical field of electrodeposition of inorganic nanocomposite materials, and in particular relates to a graphene quantum dot composite plating solution, a preparation method and an electroplating process. Background technique [0002] The electrodeposition technology uses the material to be plated as the cathode, and uses the metal ions in the plating solution to discharge and reduce the surface of the cathode to obtain a metal layer. Plating a specific metal on the base material, especially the coating of composite second-phase reinforced particles, can significantly improve the base material's corrosion resistance, wear resistance, high temperature oxidation resistance, electrical conductivity, light reflection and catalytic performance. Parts manufacturing, especially in improving the service performance of parts under extreme conditions, has significant advantages. [0003] Graphene quantum dots (GQDs) refer to an em...

Claims

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Application Information

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IPC IPC(8): C25D3/12C25D7/06C25D15/00
Inventor 雷卫宁李志贤李雅寒陈宁
Owner JIANGSU UNIV OF TECH
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