کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7715850 | 1497458 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Scaling-up and characterization of ultralow-loading MEAs made-up by electrospray
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A scaling-up process has been successfully developed to elaborate 25 cm2 active area electrodes for proton exchange membrane fuel cell (PEMFC) with ultra-low platinum loading. By electrospraying catalytic inks (liquid suspensions containing catalytic nanoparticles) porous catalytic layers with 0.01 mgPt cmâ2 loading have been spread on conductive substrates (carbon paper) to prepare electrodes for Membrane Electrode Assemblies (MEAs) with Nafion® sheets as polymeric membranes. The performance of these MEAs in single cells has been assessed under different working conditions of pressure, temperature and humidity. The results show equivalent fuel cell performances when compared with the operation of 5 cm2 active area MEAs reported in previous works. In particular, the maximum catalyst utilization (power per gram of platinum in the MEA) delivered by these electrodes, under optimal conditions, reaches the interval 30-35 kW gPtâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 15, 27 April 2015, Pages 5384-5389
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 15, 27 April 2015, Pages 5384-5389
نویسندگان
B. Martinez-Vazquez, D.G. Sanchez, J.L. Castillo, K.A. Friedrich, P.L. Garcia-Ybarra,