纳米Al_2O_3颗粒对镍电结晶过程的影响

doi:10.61558/2993-074X.1986

电化学（中英文） ›› 2009, Vol. 15 ›› Issue (2): 228-232. doi: 10.61558/2993-074X.1986

纳米Al_2O_3颗粒对镍电结晶过程的影响

谭澄宇;胡炜;崔航;刘宇;

中南大学材料科学与工程教育部重点实验室;

收稿日期:2009-05-28 修回日期:2009-05-28 出版日期:2009-05-28 发布日期:2009-05-28

Influence of Nano-Al_2O_3 Particles in Nickel Electro-crystallization Process

TAN Cheng-yu,HU Wei,CUI Hang,LIU Yu

(Key Laboratory of Ministry of Education for Material Science and Engineering,Central-South University,Changsha 410083,China

Received:2009-05-28 Revised:2009-05-28 Published:2009-05-28 Online:2009-05-28

摘要/Abstract

摘要： 借助循环伏安(CV)和计时安培(CA)研究了在不同电位下,纳米Al2O3微粒对镍由硫酸盐混合溶液在铜基底上电结晶沉积的影响.结果表明,Ni-Al2O3镀液体系电沉积的起始电位约为-740 mV.随着阶跃电位负移,Ni-Al2O3镀液体系电沉积成核时间tm逐渐缩短.与纯Ni镀液体系电沉积的tm相比,在-740~-830mV较低阶跃电位下,Ni-Al2O3镀液体系电沉积的成核时间tm明显缩短,表明Al2O3微粒有助于镍的电结晶成核.在-890 mV阶跃电位下,Ni-Al2O3镀液体系电沉积初始阶段的成核过程满足Scharifker-Hills三维瞬时成核模型.

关键词: Ni-Al2O3膜, 电结晶形核, I~t曲线

Abstract: The influence of nano-Al2O3 particles in nickel electro-deposition on copper matrix from acid sulphate solution was studied under various potentials by using cyclic voltammetry(CV) and chronoamperometry(CA).The results show that the beginning potential of electro-deposition was about-740 mV(vs.SCE) for Ni-Al2O3 solution system.With the step-potential moving to the negative direction,the nucleation time of electro-deposition for Ni-Al2O3 solution system was shortened gradually.Compared with that of pure Ni deposition system,the nucleation time tm,corresponding to the peak current of Ni-Al2O3 deposition system was apparently shortened under the lower step-potential:-740~-830 mV,which indicates that Al2O3 particles promote the nucleation process of nickel electro crystallization.Under the step-potential of-890 mV(vs.SCE),the electro-deposition nucleation of Ni-Al2O3 solution system in the initial stage meets the instantaneous Scharifker-Hill model with three-dimensional.

Key words: Ni-nanoAl2O3 coating, electro-crystallization nucleation, I～t curve

中图分类号:

TB383.1

谭澄宇, 胡炜, 崔航, 刘宇, . 纳米Al_2O_3颗粒对镍电结晶过程的影响[J]. 电化学（中英文）, 2009, 15(2): 228-232.

TAN Cheng-yu, HU Wei, CUI Hang, LIU Yu. Influence of Nano-Al_2O_3 Particles in Nickel Electro-crystallization Process[J]. Journal of Electrochemistry, 2009, 15(2): 228-232.

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https://electrochem.xmu.edu.cn/CN/Y2009/V15/I2/228

参考文献

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纳米Al_2O_3颗粒对镍电结晶过程的影响

Influence of Nano-Al_2O_3 Particles in Nickel Electro-crystallization Process

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