INHIBITION OF LEAD ELECTROCRYSTALLIZATION BY ORGANIC ADDITIVES
INHIBITION OF LEAD ELECTROCRYSTALLIZATION BY ORGANIC ADDITIVES
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DOI：
10.1016/0013-4686(92)85119-6
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发表时间：
1992-09-01
影响因子：
6.6
通讯作者：
MAURIN, G
中科院分区：
文献类型：
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作者：
MURESAN, L;ONICIU, L;MAURIN, G
将木质素磺酸盐和七叶树提取物加入到氟硅酸铅电解液中，以改善阴极铅电沉积物的平整性。通过诱导强过电位，这些添加剂完全抑制了各种形式的枝晶生长。所得到的光滑层呈现具有特征形态的弱纤维纹理。提出了一种基于X射线衍射的新颖、简单的织构质量评价方法。这些整平器对圆盘电极的电势和旋转速率具有不同的依赖性。特别是，电解质搅拌往往会增加一种化合物的抑制效率，并降低它的其他。这两种添加剂的联合使用确保了良好的流平性，即使是非常厚的铅电镀层。
Lignin sulphonate and an extract of horse chestnut are added to a lead fluorosilicate electrolyte in order to improve the levelling of cathodic lead electrodeposits. By inducing a strong overpotential, these additives suppress totally the various forms of dendritic growth. The resulting smooth layers present weak fibre textures with characteristic morphologies. An original and simple method based on X-ray diffraction was developed in order to evaluate the texture quality. These levellers have different dependence on potential and rotation rate of the disk electrode. In particular, electrolyte agitation tends to increase the inhibition efficiency for one compound and to decrease it for the other. The conjoint use of the two additives ensures a good levelling, even for very thick lead electrodeposits.