کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1278262 | 1497643 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ti–Ni alloys as MH electrodes in Ni–MH accumulators
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In hydrogen solid–gas reaction at 300 K and 1 bar, the hydrogen content for Ti3.87Ni1.73Fe0.7Ox (0.2≤ × ≤0.8) alloys was in range 1.93–0.05 (Cwt.H,%), and discharge capacity of 360–235 A h/kg was achieved accordingly. The ΔHH2ΔHH2 and ΔSH2ΔSH2 values of −32.29 kJ mol−1 and −111.04 J mol−1 K−1, respectively, for Ti3.87Ni1.73Fe0.7O0.5 alloy were obtained using experimental PCT relations, where hysteresis effect was only slightly visible. The half-cell potentials (vs. Hg/HgO) of metal hydride (MH) electrodes based on Ti3.87Ni1.73Fe0.7Ox (0.2≤ ×≤ 0.8) alloys were calculated.Ti3.87Ni1.73Fe0.7Ox (0.2≤ × ≤0.5) alloys might meet the requirements of general criteria for MH electrode, but only with the exception of good corrosion resistance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 33, Issue 23, December 2008, Pages 7177–7184
Journal: International Journal of Hydrogen Energy - Volume 33, Issue 23, December 2008, Pages 7177–7184
نویسندگان
I. Saldan, R. Burtovyy, H.-W. Becker, V. Ader, Ch. Wöll,