在甲磺酸中电沉积铅-锑(Pb-Sb)合金,循环伏安实验表明Pb-Sb共沉积的起始电位约为-0.924 V(vs.Hg-Hg2SO4,饱和K2 SO4),合金的共沉积受扩散控制. 采用X射线衍射、扫描电子显微镜和能谱分析研究了阴极电流密度对镀层结构的影响. 结果表明,随着阴极电流密度从5×10-3 A/cm2增大至2.0×10-2 A/cm2,镀层中Pb摩尔分数从33.6%增加到82.4 %;随后随着电流密度进一步增加,Pb含量减少;所得镀层为面心立方(Fm3m)的Pb-Sb固熔体. 运用电化学实验研究了该合金在硫酸介质中的电化学性能,证实Pb-Sb比纯Pb更适合作铅酸蓄电池的板栅材料.
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