کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
180805 459389 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Polarization curve of partially degraded catalyst layer
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Polarization curve of partially degraded catalyst layer
چکیده انگلیسی

A model of a partially degraded catalyst layer (CL) in a fuel cell is reported. The degradation is modeled as a lowering of the exchange current density in a sub-layer at the membrane/CL interface. Degradation of 30 to 40% of the CL thickness may dramatically increase the polarization voltage. At a large current density, the voltage loss in such a two-layer system is close to the loss in a fully degraded CL. Estimates of this effect for a PEMFC cathode and a DMFC anode are performed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 12, Issue 12, December 2010, Pages 1780–1783
نویسندگان
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