Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1622865 | Journal of Alloys and Compounds | 2009 | 4 Pages |
Abstract
In order to improve the cycle stability of MgNi alloy, the composites MgNi-x wt%NiP (x = 5, 10, 15) were synthesized by ball milling the MgNi alloy with NiP alloy. The microstructure and electrochemical properties of the composites were investigated. Based on X-ray diffraction (XRD) patterns, the composites had better amorphous structures than pure-MgNi. Electrochemical studies showed that the cycle stability of the composite electrodes was improved due to the enhancement of the anti-corrosion property in the alkaline electrolyte. The MgNi-10 wt%NiP electrode performed the best. At the discharge current density Id 500 mA gâ1, the HRD increased from 37.2% to 54.4% (x = 10). Moreover, according to the electrochemical impedance spectroscopy (EIS), the charge-transfer resistance decreased, indicating that the electrochemical kinetics of the composite electrodes was improved.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yanhui Zhang, Lifang Jiao, Yijing Wang, Qinghong Wang, Li Liu, Yunyun Zhang, Huatang Yuan, Sichen Liu,