کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7732001 1497944 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of new proton conducting glasses for fuel cells
ترجمه فارسی عنوان
بررسی عینک های جدید پروتون برای سلول های سوختی
کلمات کلیدی
عینک هدایت پروتون، سلول سوختی، هدایت پروتون تراکم قدرت، دمای انتقال شیشه،
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
The glasses in the series (35−x) BaO:65 P2O5:x (NH4)2SO4 are synthesized and characterized by Tg, CTE, density and electrical conductivity measurements. The decrease in density and Tg is observed with addition of (NH4)2SO4. The increase in CTE compliments the observed variation in Tg. The protonic conductivity increases with addition of (NH4)2SO4 up to 7.5 mol% and decreases beyond this composition. The increase in the ratio of O/P, which in turn, creates more non-bridging oxygens, enhances the conductivity. Further, sulfur is mainly incorporated in sulfophosphate glasses as isolated SO42− group which also results in increase in conductivity. The glass with maximum conductivity [7.5(NH4)2SO4:27.5BaO:65 P2O5] is used to fabricate a fuel cell. It gives the power density of 12.43 μW/cm2. The power density of the fuel cell in the present work at room temperature is higher than that reported in literature at 473 K. The fuel cell has a potential of giving higher power density at higher temperature of 423 K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 288, 15 August 2015, Pages 229-233
نویسندگان
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