Effect of surface conditioning on zinc nucleation using aluminium cathodes
| ISSN: |
1572-8838
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Chemistry and Pharmacology
Electrical Engineering, Measurement and Control Technology
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| Notes: |
Abstract The effect of the aluminium cathode microstructure on zinc nucleation has been investigated through surface examination by SEM and cyclic voltammetry. Zinc nucleation is strongly affected by the surface preparation and impurities present in the aluminium. For chemically pure aluminium, the oxide film on the surface plays an important role during zinc nucleation and crystal growth. Thickening the barrier oxide film inhibits nucleation while a reverse effect can be obtained by thinning or removing the oxide film. In the case of a dilute aluminium with iron alloy, following anodization, the Al−Fe intermetallic phases provide conductive paths through the oxide film resulting in zinc nucleation.
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| Type of Medium: |
Electronic Resource
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| URL: |