کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7731935 | 1497946 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of cationic contaminants on polymer electrolyte fuel cell performance
ترجمه فارسی عنوان
اثر آلاینده های کاتیونی بر عملکرد سلول های سوخت الکترولیت پلیمر
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کلمات کلیدی
سلول سوختی الکترولیت پلیمر، ناخالصی سوخت، آلودگی کاتیونی، تنزل، تسکین دهنده، بهبود،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
The effect of cationic contaminants on polymer electrolyte fuel cell (PEFC) performance is investigated via in-situ injection of dilute cationic salt solutions. Four foreign cations (K+, Ba2+, Ca2+, Al3+) are chosen as contaminants in this study due to their prevalence and chemical structure (e.g. valence), however contaminants that have already received extensive coverage in the literature like sodium and iron are excluded. It is found that the cells with Ba(ClO4)2 and Ca(ClO4)2 injection exhibit little cell performance change during the current hold test, and the cells with Al(ClO4)3 and KClO4 injection show larger cell performance changes, i.e. decreasing cell voltage and increasing cell resistance. These cells with in-situ contaminant injection have a tendency to recover a portion of the lost performance after the recovery test when switched back to supersaturated air. The degradation in cell performance with the presence of cationic contaminants is mainly due, in addition to the membrane resistance increase associated with replacing protons on the sulfonate groups, to the increase in mass transport resistance and decrease in electrochemical surface area.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 286, 15 July 2015, Pages 18-24
Journal: Journal of Power Sources - Volume 286, 15 July 2015, Pages 18-24
نویسندگان
Jing Qi, Xiaofeng Wang, M. Ozan Ozdemir, Md. Aman Uddin, Leonard Bonville, Ugur Pasaogullari, Trent Molter,