Studies on Incorporation of Mg in Zr-Based AB2 Metal Hydride Alloys
AbstractMg, the A-site atom in C14 (MgZn2), C15 (MgCu2), and C36 (MgNi2) Laves phase alloys, was added to the Zr-based AB2 metal hydride (MH) alloy during induction melting. Due to the high melting temperature of the host alloy (>1500 °C) and high volatility of Mg in the melt, the Mg content of the final ingot is limited to 0.8 at%. A new Mg-rich cubic phase was found in the Mg-containing alloys with a small phase abundance, which contributes to a significant increase in hydrogen storage capacities, the degree of disorder (DOD) in the hydride, the high-rate dischargeability (HRD), and the charge-transfer resistances at both room temperature (RT) and −40 °C. This phase also facilitates the activation process in measurement of electrochemical discharge capacity. Moreover, through a correlation study, the Ni content was found to be detrimental to the storage capacities, while Ti content was found to be more influential in HRD and charge-transfer resistance in this group of AB2 metal hydride (MH) alloys. View Full-Text
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Chang, S.; Young, K.-H.; Ouchi, T.; Meng, T.; Nei, J.; Wu, X. Studies on Incorporation of Mg in Zr-Based AB2 Metal Hydride Alloys. Batteries 2016, 2, 11.
Chang S, Young K-H, Ouchi T, Meng T, Nei J, Wu X. Studies on Incorporation of Mg in Zr-Based AB2 Metal Hydride Alloys. Batteries. 2016; 2(2):11.Chicago/Turabian Style
Chang, Shiuan; Young, Kwo-hsiung; Ouchi, Taiehi; Meng, Tiejun; Nei, Jean; Wu, Xin. 2016. "Studies on Incorporation of Mg in Zr-Based AB2 Metal Hydride Alloys." Batteries 2, no. 2: 11.
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