کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
190891 | 459709 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of liquid water constraints in micro polymer electrolyte fuel cells without gas diffusion layers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Identification of liquid water constraints in micro polymer electrolyte fuel cells without gas diffusion layers Identification of liquid water constraints in micro polymer electrolyte fuel cells without gas diffusion layers](/preview/png/190891.png)
چکیده انگلیسی
A simplified, miniaturized polymer electrolyte fuel cell without gas diffusion layers was investigated under operation by neutron radiography. By visualizing liquid water, it was possible to identify limiting effects, which are directly related to the simplified construction principle. Depending on the operation conditions, undesired water accumulation either in particular micro-channels or on the cathode catalyst layer as well as drying of the anode catalyst layer was observed. As a consequence, the design of a fuel cell without gas diffusion layers must take into account these limitations visualized by neutron radiography.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 55, Issue 8, 1 March 2010, Pages 2932–2938
Journal: Electrochimica Acta - Volume 55, Issue 8, 1 March 2010, Pages 2932–2938
نویسندگان
Bernhard C. Seyfang, Pierre Boillat, Franziska Simmen, Stefan Hartmann, Gabriel Frei, Thomas Lippert, Günther G. Scherer, Alexander Wokaun,