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
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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,