Abstract
Potentiostatic oxidation potentiodynamic or galvanostatic reduction methods have been used to study the cathodic reduction behaviour of various products anodically formed on the second stage of copper oxidation in concentrated NaOH solutions. Seven cathodic current peaks and the corresponding cathodic potential plateaus are observed on the potentiodynamic E/i curves and the galvanostatic E/t curves, respectively. In the negative potential scan, there are three couples of voltammetric peaks which have been attributed to the formation and reduction of CuO, Cu(OH) 2 and Cu(Ⅱ) ion, respectively. The complicated mechanism for the electro formation of the three Cu(Ⅱ) species are discussed.
Keywords
Copper anodic oxide, Cathodic reduction, Alkaline media
Publication Date
1997-08-28
Online Available Date
1997-08-28
Revised Date
1997-08-28
Received Date
1997-08-28
Recommended Citation
Jianbo He, Hanhe Chen, Jianxin Lin.
Investigation on Electro reduction Behaviour of Copper Anodic Products in Concentrated NaOH Solutions Ⅱ. Electro reduction of Cu(Ⅱ) Products[J]. Journal of Electrochemistry,
1997
,
3(3): Article 11.
DOI: 10.61558/2993-074X.3129
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol3/iss3/11
References
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