کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1627730 1516459 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and electrochemical properties of La1 − xCaxNi3.2Co0.3Al0.3 hydrogen storage electrode alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Microstructure and electrochemical properties of La1 − xCaxNi3.2Co0.3Al0.3 hydrogen storage electrode alloys
چکیده انگلیسی
A new low cobalt hydrogen storage electrode alloys La1 − xCaxNi3.2Co0.3Al0.3 (0 ≤ x ≤ 0.4) was developed. The microstructure and electrochemical properties were investigated and the results showed that the prepared alloys were basically composed of LaNi5 as matrix phase and LaNi3 as second phase (x ≤ 0.1). The second phase LaNi3 is substituted by a new phase Al(NiCo)3 gradually with increasing Ca content, and cycle stability is improved correspondingly. The highest discharge capacity can reach to 295 mAh g−1 (x = 0.2) and it can remain 82.5% (x = 0.2) after 300 charge/discharge cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 414, Issues 1–2, 13 April 2006, Pages 253-258
نویسندگان
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