| Autor: |
Chladil, Ladislav, Cech, Ondrej, Vanysek, Petr |
| Zdroj: |
ECS Transactions; December 2016, Vol. 74 Issue: 1 p137-146, 10p |
| Abstrakt: |
Electrochemical deposition of Zn under DC and various frequencies of pulse deposition modes were studied in electrolytes with reduced zinc solubility - 6 M KOH + 1.8 M KF + 1.8 M K2CO3 saturated by zinc oxide. Current density was set up to the level of the mossy deposit creation under DC condition in common 6 M KOH. Morphology of deposit was visualized by scanning electron microscopy and distribution of particle size was calculated. Moreover XRD measurements were performed for monitoring of structure changes and investigation of preferable particle orientation. The results show that the pulse deposition significantly influences the morphology of the deposit along wide range of pulse frequencies 0.5 - 500 Hz. On one hand the pulse deposition significantly inhibits dendrite formation and thus increases the maximum allowed deposition current, but on the other hand it also influences the size and position of the deposited zinc particles. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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