کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9803305 | 1516464 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of ball-milling time on the electrochemical performance of ball-milled LaMg11Ni + 200 wt% Ni composite
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effect of ball-milling time on the overall electrochemical properties of LaMg11Ni + 200 wt% Ni composite has been studied systematically. The results show that ball-milling time has a striking effect on the overall electrochemical properties. The maximum discharge capacity increases first and then decreases with the increase of ball-milling time from 60 to 120 h, and the cycling stability is just on the contrary. The high-rate dischargeability increases a little with increasing ball-milling time. Detailed studies on the ball-milling time effect on the polarization resistance (Rp), the exchange current density (I0) and limiting current density (IL) indicate that the diffusion of hydrogen in the bulk of LaMg11Ni + 200 wt% Ni composite electrodes is the rate-determining factor for the discharge process of the alloy electrode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 403, Issues 1â2, 10 November 2005, Pages 357-362
Journal: Journal of Alloys and Compounds - Volume 403, Issues 1â2, 10 November 2005, Pages 357-362
نویسندگان
Li Wang, Xinhua Wang, Lixin Chen, Changpin Chen, Qidong Wang,