Lead-Silver Anode Degradation during Zinc Electrorecovery Process : Chloride Effect and Localized Damage
Joint Authors
Lashgari, Mohsen
Hosseini, Farzaneh
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-09
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Using mass-loss, potentiodynamic polarization, and electrochemical impedance measurements under anodic regime, the corrosion behaviour of lead-silver (0.55%) electrode in zinc electrowinning solution containing different concentration of chloride anions was studied.
The results revealed that the rate of corrosion does not monotonically increase with concentration.
Moreover, the maximum degradation occurs at the concentration where the anodic process (oxygen evolution) proceeds hardly.
According to polarization curves, the electrode exhibited obvious electrocatalytic activity (for anode reaction) by forming oxide layer.
To scrutinize the localized damage, occurring at the bottom of anode, we also took some scanning electron micrographs with energy dispersive X-ray analyses.
The investigations suggested a new mechanism, that is, a complicated migration phenomenon, resulting from an electrodissolution/sedimentation/deposition process.
American Psychological Association (APA)
Lashgari, Mohsen& Hosseini, Farzaneh. 2013. Lead-Silver Anode Degradation during Zinc Electrorecovery Process : Chloride Effect and Localized Damage. Journal of Chemistry،Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-479707
Modern Language Association (MLA)
Lashgari, Mohsen& Hosseini, Farzaneh. Lead-Silver Anode Degradation during Zinc Electrorecovery Process : Chloride Effect and Localized Damage. Journal of Chemistry No. 2013 (2013), pp.1-5.
https://search.emarefa.net/detail/BIM-479707
American Medical Association (AMA)
Lashgari, Mohsen& Hosseini, Farzaneh. Lead-Silver Anode Degradation during Zinc Electrorecovery Process : Chloride Effect and Localized Damage. Journal of Chemistry. 2013. Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-479707
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-479707