کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
195621 | 459818 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical impedance spectroscopy applied to polymer electrolyte fuel cells with a pseudo reference electrode arrangement
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The nature of the solid electrolyte and the low electrode–electrode gap in polymer electrolyte fuel cells (PEFCs) makes it difficult to introduce a reference electrode into the fuel cell in order to separate anodic and cathodic overpotential contributions. A suitable experimental setup should not disturb the current distribution in the fuel cell. In order to satisfy the boundary conditions, we introduced a pseudo reference electrode into the fuel cell. With this setup, we have measured the impedance of both electrodes separately with respect to the pseudo reference electrode at different current densities. A state-space model was used to study the hydrogen oxidation reaction in order to identify kinetic parameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issues 8–9, 20 January 2006, Pages 1622–1628
Journal: Electrochimica Acta - Volume 51, Issues 8–9, 20 January 2006, Pages 1622–1628
نویسندگان
H. Kuhn, B. Andreaus, A. Wokaun, G.G. Scherer,