کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7717601 | 1497476 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polarization curve of a PEM fuel cell with the account of a finite rate of oxygen adsorption on Pt surface
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Polarization curve of a PEM fuel cell with the account of a finite rate of oxygen adsorption on Pt surface Polarization curve of a PEM fuel cell with the account of a finite rate of oxygen adsorption on Pt surface](/preview/png/7717601.png)
چکیده انگلیسی
We report a model for performance of the cathode catalyst layer in PEM fuel cell; the model takes into account a finite rate of oxygen adsorption on Pt surface. An analytical polarization curve of the cathode catalyst layer is derived. The curve is fitted to recent experimental polarization curves; the equivalent current density of O2 adsorption on Pt surface is estimated to be 0.18Â AÂ cmPtâ2. We show that decrease in the cell performance due to finite rate of O2 adsorption at a small catalyst loading can be mitigated by making a gradient electrode with the catalyst loading growing toward the membrane.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 33, 11 November 2014, Pages 19018-19023
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 33, 11 November 2014, Pages 19018-19023
نویسندگان
A.A. Kulikovsky,