کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1287129 1498039 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Predictions of the optimum ternary alkali-carbonate electrolyte composition for MCFC by computational calculation
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Predictions of the optimum ternary alkali-carbonate electrolyte composition for MCFC by computational calculation
چکیده انگلیسی

Various kinds of phase diagrams for Li–Na–K ternary carbonate systems were plotted and the vapor pressures of chemical species such as alkali cations and oxygen molecule at various compositions and various temperatures were calculated by computational manipulation of thermodynamic databases. The liquidus temperature of (Li0.52Na0.48)2CO3–(Li0.62K0.32)2CO3, (Li0.62K0.32)2CO3–(Li0.44Na0.30K0.26)2CO3, and (Li0.44Na0.30K0.26)2CO3–(Li0.52Na0.48)2CO3 binary systems decrease with the increase of Li2CO3 content without any ternary intermediate compound. Total vapor pressure of alkali metal species governed by the summation of the vapor pressure of free Na and K and the vapor pressure of alkali metal species starts to decrease abruptly when the content of (Li0.52Na0.48)2CO3 is over 70 mol% in (Li0.52Na0.48)2CO3–(Li0.62K0.32)2CO3 system while over 50 mol% in (Li0.44Na0.30K0.26)2CO3–(Li0.52Na0.48)2CO3 system. On the contrary, the equilibrium vapor pressure of oxygen molecule abruptly increases at the same composition range.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 160, Issue 2, 6 October 2006, Pages 805–810
نویسندگان
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