کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1275821 | 1497463 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The reversible hydrogen storage performances of Mg50Co50 and Mg50Co45Pd5 alloys with body-centered cubic phase in electrochemical system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The Mg50Co50 and Mg50Pd5Co45 alloys with nano-crystalline body-centered cubic (BCC) structure were confirmed by means of XRD and TEM/SAED analyses. They are available in the anode of Ni-MH battery system, which can be reversibly charged and discharged with maximum capacity of 458 mAh gâ1. They exhibit greatly enhanced reversible hydrogen storage, differing from their tough dehydrogenation performances in solid-gas system [Y. Zhang et al., Journal of Alloys and Compounds 393 (2005) 147-153]. This phenomenon can be ascribed to the structural stability of Mg50Co50-based binary and ternary BCC alloys in the electrochemical reactions, and also the electro-catalysis activity. Introducing Pd into Mg50Co50 alloy lifts not only the initial discharge capacity, but also the high-rate discharge-ability. The exchange current density and hydrogen diffusion mobility can also be improved by the Pd additive in the ternary electrode alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 10, 16 March 2015, Pages 3944-3952
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 10, 16 March 2015, Pages 3944-3952
نویسندگان
Yao Zhang, Leyu Zhan, Yunfeng Zhu, Xiangyang Zhuang, Xinli Guo, Jian Chen, Zengmei Wang, Liquan Li, Yi Qu,