Abstract
The corrosion behavior of Mg-base hydrogen storage alloys has been investigated by potentiodynamic polarization and EIS. The results showed that the corrosion current density (i_(corr) ) and the electrochemical polarized resistance of Mg_(2-x)Ce_xNi alloys decreased with x increase, while i_(corr) of Mg_(2-x)La_xNi alloys increased and the electrochemical polarized resistance of Mg_(2-x)La_xNi alloys increased first, then decreased with x increase. SEM results showed that the surface of Mg_(1.85)Ce_(0.15)Ni alloy was relatively even while the surface of Mg_(2-x)La_xNi alloy had remarkedly cracks. The different behavior between Ce and La may be relevant to the structure of Ce, La oxides.
Keywords
Mg-based hydrogen storage alloy, Potentiodynamic polarization, EIS
Publication Date
2005-02-28
Online Available Date
2005-02-28
Revised Date
2005-02-28
Received Date
2005-02-28
Recommended Citation
Hai-chang ZHANG, Hua-bin YANG, Jun-hong WANG, Zuo-xiang ZHOU.
Corrosion Behavior of Mg_(2-x)La_xNi and Mg_(2-x)Ce_xNi Hydrogen Storage Alloy[J]. Journal of Electrochemistry,
2005
,
11(1): 12-15.
DOI: 10.61558/2993-074X.1606
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol11/iss1/3
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons
