Abstract
This paper describes the influence of 20 kHz ultrasound upon the corrosion behaviour of zinc in NaOH electrolytes. A systematic study of the effects exerted by ultrasound on the electrochemical interface was first carried out, so as to determine the transmitted power and to characterize mass transfer at the electrode. Then attention was focused on the corrosion passivation mechanism of zinc in sonicated NaOH solutions (0.1 and 1 M). Investigations were carried out using electrochemical techniques to determine corrosion and passivation kinetics parameters. SEM analysis of the sonicated zinc surfaces provides complementary information on the oxide layer composition and structure.
| Original language | English |
|---|---|
| Pages (from-to) | 291-298 |
| Number of pages | 8 |
| Journal | Ultrasonics Sonochemistry |
| Volume | 8 |
| Issue number | 3 |
| Early online date | 8 Jun 2001 |
| DOIs | |
| Publication status | Published - Jul 2001 |
Keywords
- NaOH electrolyte
- Power ultrasound
- Sonoelectrochemistry
- Zinc corrosion
ASJC Scopus subject areas
- Environmental Chemistry
- Chemical Engineering (miscellaneous)
- Radiology Nuclear Medicine and imaging
- Acoustics and Ultrasonics
- Organic Chemistry
- Inorganic Chemistry
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