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Citation: ZHANG Li-Li, XUAN Tian-Peng, YU Yao, MIN Wen-Jin. The Promotion of Ce³⁺ in the Activation Solution to Electroless Plating of Ag on Cu Powers[J]. Chinese Journal of Applied Chemistry, ;2010, 27(4): 441-444. doi: 10.3724/SP.J.1095.2010.90344 shu

The Promotion of Ce³⁺ in the Activation Solution to Electroless Plating of Ag on Cu Powers

College of Material Science and Engineering, Hefei University of Technology, Hefei 230009

Received Date: 12 May 2009
Revised Date: 6 July 2009

A trace amount of rare earth metal cation,e.g. Ce³⁺ was added to the activation solutions to enhance the electroless plating of Ag on Cu powder.Polarization curves of activation solutions,micromorphology and the clad ratio of silver on copper powder surface were studied through electrochemistry and scanning electron microscopy.The results show that the Ce³⁺ added to the Pd²⁺ activation solutions with an appropriate amount enables the decrease of polarizability,the increase of static potential and plating potential.Therefore,the reaction of activation solution became easier.A suitable amount of rare earth element can increase the deposition speed of silver on copper powder surface.With the further increase of rare earth element content,the particle size of silver plating on copper powder tend to dcrease and the coatings became clease gradually.The optimal addition value of Ce³⁺ is 0.32 g/L.
- rare earth,
- silver plating copper powder,
- activation
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The Promotion of Ce3+ in the Activation Solution to Electroless Plating of Ag on Cu Powers

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通讯作者: 陈斌, bchen63@163.com

The Promotion of Ce³⁺ in the Activation Solution to Electroless Plating of Ag on Cu Powers