کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1274311 | 1497638 | 2009 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Crystallographic and electrochemical characteristics of Ti45Zr35Ni13Pd7 melt-spun alloys Crystallographic and electrochemical characteristics of Ti45Zr35Ni13Pd7 melt-spun alloys](/preview/png/1274311.png)
Ti45Zr35Ni13Pd7 alloys are prepared by melt spinning at different cooling rates (v). The phase structure and electrochemical hydrogen storage performance are investigated. When v is 10 m/s, the alloy consists of icosahedral quasicrystalline phase (I-phase), C14 Laves phase and a little amorphous phase. When v increases to 20 or 30 m/s, a mixed structure of I-phase and amorphous phase is formed. Maximum discharge capacity of alloy electrode decreases from 156 mAh/g (v = 10 m/s) to 139 mAh/g (v = 30 m/s) with increasing v. High-rate dischargeability at the discharge current density of 240 mA/g decreases monotonically from 61.2% (v = 10 m/s) to 56.8% (v = 30 m/s). Cycling retention rate S20 increases from 62.2% (v = 10 m/s) to 66.1% (v = 30 m/s) with increasing v, which is ascribed to the increase in amorphous phase.
Journal: International Journal of Hydrogen Energy - Volume 34, Issue 4, February 2009, Pages 1890–1895