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Electrolyte for metal nickel coating and application of electrolyte

A technology of electrolyte and metal nickel, which is applied in the field of electrochemistry, can solve the problems of uneven metal nickel plating and the inability to recycle the plating solution, and achieve the effects of easy stripping, broadening the electrochemical reaction mechanism, and saving use costs

Active Publication Date: 2021-08-20
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above technical problems, the application provides an electrolyte for metal nickel coating and its application, which is used to at least partially solve technical problems such as uneven metal nickel coating and inability to recycle the plating solution.

Method used

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  • Electrolyte for metal nickel coating and application of electrolyte
  • Electrolyte for metal nickel coating and application of electrolyte
  • Electrolyte for metal nickel coating and application of electrolyte

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Using 1mol / L Ni 2+ ions, 0.1mol / L borate ion and 1mol / L KCl electrolyte, with nickel-plated copper sheet as the substrate, copper sheet as the working electrode, assembled into a three-electrode system, and carried out constant current electroplating stripping experiments, the results are as follows figure 1 shown. Depend on figure 1 It can be seen that the copper sheet changed from the original yellow to black after electroplating, and the copper sheet returned to its original color after stripping, and the electroplating stripping was very uniform. Therefore, it can be inferred that the electrolyte solution in this embodiment has achieved good nickel electroplating stripping and has good reversibility through the obvious changes in surface color and morphology before and after electroplating stripping.

Embodiment 2

[0050] Using 2mol / L Ni 2+ ions, 0.3mol / L borate ions and 1mol / L NaCl electrolyte, with nickel-plated copper as the substrate and copper as the working electrode, assembled into a three-electrode system, and carried out constant current electroplating stripping experiments. The experimental results were consistent with figure 1 Similarly, the surface color and appearance of the copper sheet in this example have obvious changes before and after electroplating stripping, indicating that the electrolyte in this example achieves good nickel electroplating stripping and has good reversibility.

Embodiment 3

[0052] Using 4mol / L Ni 2+ ions, 0.4mol / L borate ions and 1mol / L LiCl electrolyte, nickel-plated copper as the substrate, copper as the working electrode, assembled into a three-electrode system, the constant current electroplating stripping experiment, the experimental results and figure 1Similarly, the surface color and appearance of the copper sheet in this example have obvious changes before and after electroplating stripping, indicating that the electrolyte in this example achieves good nickel electroplating stripping and has good reversibility.

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Abstract

The invention discloses an electrolyte for a metal nickel coating and application of the electrolyte. The electrolyte for the metal nickel coating comprises an aqueous solution of Ni<2+> ions, borate ion and an additive. The additive is used for promoting stripping of an electroplated layer.

Description

technical field [0001] The present application relates to the technical field of electrochemistry, in particular to an electrolytic solution for metal nickel plating and its application. Background technique [0002] Metal is one of the most common materials in human civilization and is closely related to various applications in all ages. Therefore, the production process of metals is also very mature. According to the different properties of metals, it is mainly divided into physical methods, chemical methods and electrochemical methods. Electroplating (or electrodeposition) is an electrochemical method with a long history to manufacture metal coatings on conductive substrates by applying an external power source. [0003] In recent years, the principle of electrodeposition has been widely used in various aspects, such as smart color-changing glass in life, metal protective coating in industry, metal negative electrode of secondary battery in energy storage, and so on. Ho...

Claims

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Application Information

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IPC IPC(8): C25D3/12C25D21/18
CPCC25D3/12C25D21/18
Inventor 陈维王明明
Owner UNIV OF SCI & TECH OF CHINA
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