Catalytic Effect of Cl^- on Electrodeposition of Binary Zinc Alloys With Iron group Metals

Authors

Ren-he YIN, Shanghai Univ., Shanghai 200436, ChinaFollow
Zheng-hua FANG, Shanghai Univ., Shanghai 200436, China
Wei-min CAO, Shanghai Univ., Shanghai 200436, China
A.ZAKARIA A.ZAKARIA, Shanghai Univ., Shanghai 200436, China
Rong-ming ZHOU, Shanghai Univ., Shanghai 200436, China

Corresponding Author

Ren-he YIN(yinrenhe@hotmail.com)

Abstract

Zinc iron group metal alloys were deposited under coulostatic (10C⋅cm^-2 ) at 40 ℃ chloride baths. The deposited alloys were quantitatively analyzed by Atomic Absorption Spectrometry. The current efficiency, percent content and partial polarization curves were obtained by the results. The morphology of the deposits was observed by means of Scanning Electron Microscopy(SEM). We observe that the electrodeposition of zinc iron group metal alloys is one of the best known examples of anomalous codeposition. We found the catalytic effect of Cl^- on the electrodeposition behavior of iron group metal. Overpotential of iron group metal droped abruptly at high Cl^- concentration, while transition current density of Zn increased gradually.

Keywords

Zinc-iron-group metal alloys, Anomalous codeposition, Catalytic effect, Transition current density

DOI Link

https://doi.org/10.61558/2993-074X.3243

Publication Date

2001-02-28

Online Available Date

2001-02-28

Revised Date

2000-08-14

Received Date

2000-06-02

Recommended Citation

Ren-he YIN, Zheng-hua FANG, Wei-min CAO, A.ZAKARIA A.ZAKARIA, Rong-ming ZHOU. Catalytic Effect of Cl^- on Electrodeposition of Binary Zinc Alloys With Iron group Metals[J]. Journal of Electrochemistry, 2001 , 7(1): 85-89.
DOI: 10.61558/2993-074X.3243
Available at: https://jelectrochem.xmu.edu.cn/journal/vol7/iss1/23