کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1284700 | 973084 | 2011 | 7 صفحه PDF | دانلود رایگان |
We present a plate-frame microfluidic fuel cell architecture with porous flow-through electrodes. The architecture combines the advantages of recent microfluidic fuel cells with those of traditional plate-frame PEM fuel cells and enables vertical stacking with little dead volume. Peak current and power densities of 15.7 mA cm−2 and 5.8 mW cm−2 were observed. In addition to the new plate-frame architecture, microfabrication techniques have been used to create a new form of high performance electrode. Laser ablation of a polymer precursor followed by a pyrolysis process was used to create a thin, low-cost micro-porous electrode that provides for more rapid reactant transport. Here we show a 140% increase in power density compared to commercial carbon fiber paper.
► Microfluidic fuel cell with flow-through electrodes in a plate-frame configuration.
► Device demonstrated requires little overhead space and is readily expanded.
► Laser ablation of a polymer precursor used to create micro porous electrodes.
► 140% increase in power shown using microfabricated electrode.
Journal: Journal of Power Sources - Volume 196, Issue 22, 15 November 2011, Pages 9481–9487