| ZHENG Heng,SHAO Qian,LENG Shu-wei,GE Sheng-shong.Palladium-free Activation Electroless Nickel Plating on Cenosphere Surface[J],37(1):56-58 |
| Palladium-free Activation Electroless Nickel Plating on Cenosphere Surface |
| Received:October 25, 2007 Revised:February 10, 2008 |
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| DOI： |
| KeyWord:Cenospheres Palladium-free activation Electroless nickel plating |
| Author | Institution |
| ZHENG Heng |
School of Chemistry and Environment Engineering, Shandong University of Science and Technology, Qingda0 , China |
| SHAO Qian |
School of Chemistry and Environment Engineering, Shandong University of Science and Technology, Qingda0 , China |
| LENG Shu-wei |
School of Chemistry and Environment Engineering, Shandong University of Science and Technology, Qingda0 , China |
| GE Sheng-shong |
School of Chemistry and Environment Engineering, Shandong University of Science and Technology, Qingda0 , China |
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| Abstract: |
| In order to implement palladium-free activation electroless nickel plating on cenosphere surface, the technique for the cenosphere particles modified by electroless nickel plating activated by the methanol solution dissolving nickel-acetate and sodium-hypophosphite was investigated. The concentrations of nickel-acetate and sodium-hypophosphite were both 400g per liter methanol. Before electroless nickel plating, 20g cenosphere particles were soaked int0 1 liter activation solution for 20 minutes, heated and reacted for 30 minutes at 165 ℃ . The morphologies and the composition of original and modified cenosphere particles were characterized by environment scanning electron microscope and energy dispersive X ray spectroscopy, respectively. The results indicate that uniform and continuous Ni-P alloy coating is obtained on the cenosphere surfaces by this process. The technique can replace the palladium activation process to reduce not only the cost, but also the environment pollution. |
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