镨和钕对硫酸溶液中铅阳极膜阻抗特性的影响
Journal of Fudan University(Natural Science)（2008）
Abstract
采用实时阻抗跟踪法、交流伏安法和电化学交流阻抗频谱法研究了稀土元素Pr和Nd添加对Pb在4.5mol.dm-3H2SO4中0.9 V(vs.Hg/Hg2SO4)下生长的阳极Pb(Ⅱ)膜阻抗特性的影响.结果表明,Pr和Nd均显著降低Pb(Ⅱ)阳极膜的阻抗,膜阻抗的降低很可能由于Pr3+和Nd3+的掺杂提高了Pb(Ⅱ)阳极膜电子电导率.
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Key words
Pb alloy,anodic Pb(Ⅱ) film,Pr,impedance property,Nd
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