Corrosion Behavior of Mg_(1.85)Mm_(0.15)Ni Hydrogen Storage Alloy Modified by Electroless Cu in CH_3OH·H_2O Solutions

Authors

Hua-bin YANG, College of Chemistry Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071,China);
Hai-chang ZHANG, College of Chemistry Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071,China);
Hua SUN, College of Chemistry Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071,China);
Xiao-dan WANG, College of Chemistry Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071,China);
Zuo-xiang ZHOU, College of Chemistry Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071,China);

Corresponding Author

Hua_bin YANG

Abstract

The corrosion behavior of the Mg1.85Mm0.15Ni (Mm:Ce_rich mischmetal) alloy modified by electroless Cu coating in different CH3OH_H2O solutions has been investigated by potentiodynamic polarization and electrochemical impedance spectroscopy. These results showed that the corrosion behavior was improved after electroless Cu. The potentiodynamic polarization and electrochemical impedance spectroscopy results showed that the alloy electrode had more promising anti_corrosion behavior after coated in a 40%CH3OH_H2O solution. The values of corrosion current density and electrode reaction resistance were 5.6 mA·cm-2(11.7 mA·cm-2 for uncoated alloy electrode) and 22.25 Ω·cm2 (1.99 Ω·cm2 for the uncoated alloy electrode), respectively.

DOI Link

https://doi.org/10.61558/2993-074X.1505

Publication Date

2003-05-28

Online Available Date

2003-05-28

Revised Date

2003-05-28

Received Date

2003-05-28

Recommended Citation

Hua-bin YANG, Hai-chang ZHANG, Hua SUN, Xiao-dan WANG, Zuo-xiang ZHOU. Corrosion Behavior of Mg_(1.85)Mm_(0.15)Ni Hydrogen Storage Alloy Modified by Electroless Cu in CH_3OH·H_2O Solutions[J]. Journal of Electrochemistry, 2003 , 9(2): 196-202.
DOI: 10.61558/2993-074X.1505
Available at: https://jelectrochem.xmu.edu.cn/journal/vol9/iss2/12