Effects of deposition conditions on the morphology of zinc deposits from alkaline zincate solutions
Effects of deposition conditions on the morphology of zinc deposits from alkaline zincate solutions
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DOI：
10.1149/1.2186037
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发表时间：
2006-01-01
影响因子：
3.9
通讯作者：
Zhang, GX
中科院分区：
文献类型：
--
作者：
Wang, RY;Kirk, DW;Zhang, GX
在广泛的条件下，系统地研究了碱性锌酸盐溶液中锌矿床的形态。锌矿形态分为重海绵状、树枝状、块状、层状和丝状苔藓。枝状、层状、苔藓状沉积物的形成受单因素控制，定义为ⅰ型；重海绵状、块状沉积物的形成受多因素控制，定义为ⅱ型。在I型中，枝晶的形成和生长都受扩散控制，而层状和苔藓的形成则受激活控制。根据沉积条件的影响，构建了形貌图。这些图表明控制因素不是独立的，对于特定的矿床形态不存在普遍的临界过电位。(c) 2006电化学学会。
The morphology of zinc deposits from alkaline zincate solutions was systematically investigated over a wide range of conditions. Zinc deposit morphology was categorized as heavy spongy, dendritic, boulder, layerlike, and filamentous mossy. The formation of dendritic, layerlike, and mossy deposits is under single-factor control, and these morphologies are defined as type I. The formation of heavy spongy and boulder deposits is under multiple-factor control, and they are defined as type II. Within type I, dendrite initiation and growth are both under diffusion control, while layer and mossy formation is under activation control. Based on the effects of deposition conditions, morphology diagrams were constructed. These diagrams demonstrate that the control factors are not independent, and no universal critical overpotential for a specific deposit morphology exists. (c) 2006 The Electrochemical Society.