کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760154 | 1498041 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Assessment of the performance of a PEMFC in the presence of CO
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Assessment of the performance of a PEMFC in the presence of CO Assessment of the performance of a PEMFC in the presence of CO](/preview/png/9760154.png)
چکیده انگلیسی
Carbon monoxide is a conventional contaminant in the fuel obtained from reforming processes with an important influence on the performance of a proton exchange membrane fuel cell (PEMFC). The studies of transient and continuous injection of CO presented here give information about poisoning and recovery processes, and recommend strategies for fuel cell operation. Pulsing study shows that up to 100Â ppm CO, has no significant effect on the performance. Constant current demand experiments show an oscillatory effect due to CO electro-oxidation at high over-potentials. In continuous poisoning process, kinetic and mass transfer affect the rate of CO removal. To recover the performance for continuous fuel cell operation, we propose cyclic feeding of hydrogen containing traces of CO (i.e. supplied by a reforming process) and pure hydrogen streams.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 151, 10 October 2005, Pages 69-73
Journal: Journal of Power Sources - Volume 151, 10 October 2005, Pages 69-73
نویسندگان
S. Jiménez, J. Soler, R.X. Valenzuela, L. Daza,