کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1623190 | 1516412 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructures and electrochemical performances of La0.75Mg0.25Ni3.5Mx (M = Ni, Co; x = 0-0.6) hydrogen storage alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microstructures and electrochemical performances of La0.75Mg0.25Ni3.5Mx (M = Ni, Co; x = 0-0.6) hydrogen storage alloys Microstructures and electrochemical performances of La0.75Mg0.25Ni3.5Mx (M = Ni, Co; x = 0-0.6) hydrogen storage alloys](/preview/png/1623190.png)
چکیده انگلیسی
The cycle stability of the alloy (M = Co) monotonously increases with rising M content, but it first decreases slightly then increases for the alloy (M = Ni). The discharge potential of the alloy (M = Ni) drops with growing M content (x > 0.2), but the result is contrary for the alloy (M = Co). The substitution of Co for Ni significantly ameliorates the electrochemical performances. For a fixed M content (x = 0.2), the Co substitution enhances the discharge capacity from 365.7 to 401.8 mAh/g, the capacity retention ratio (S100) from 50.32 to 53.26% after 100 charging-discharging cycles and the HRD from 88.65 to 90.69%, respectively. It significantly enhances the discharge potential of the alloy and improves the activation performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 465, Issues 1â2, 6 October 2008, Pages 422-428
Journal: Journal of Alloys and Compounds - Volume 465, Issues 1â2, 6 October 2008, Pages 422-428
نویسندگان
Yang-huan Zhang, Xiao-ping Dong, Bao-wei Li, Hui-ping Ren, Zhong-wang Wu, Xin-lin Wang,