کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7738543 | 1497984 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Organically functionalized titanium oxide/Nafion composite proton exchange membranes for fuel cells applications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Higher ion exchange capacity (IEC) and proton conductivity of the hybrid material (one order of magnitude higher for the functionalized filler) reflected in superior performance of Nafion/TiO2-RSO3H composite membranes compared to Nafion. The highest conductivity value was obtained for the composite membrane containing 10 wt. % TiO2-RSO3H (Ï = 0.08 S cmâ1 at 140 °C). The membranes were tested in a DMFC single cell. The presence of the filler resulted in a general enhancement in the cell response, in terms of both higher power density (PD) delivered and lower methanol crossover with respect to unfilled Nafion membrane. The DMFC containing N_10TiO2-RSO3H membrane showed the best performance at 110 °C with a PD of 64 mW cmâ2, corresponding to a PD improvement of about 40% with respect to that of Nafion membrane.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 248, 15 February 2014, Pages 1127-1132
Journal: Journal of Power Sources - Volume 248, 15 February 2014, Pages 1127-1132
نویسندگان
Dafne Cozzi, Catia de Bonis, Alessandra D'Epifanio, Barbara Mecheri, Ana C. Tavares, Silvia Licoccia,