Abstract
The electrochemical properties of a proton exchange membrane (PEM) stack electrolyzer (9 cells of 100 cm 2 geometrical area) were investigated at different temperatures. An amount of H 2 of ∼270 l h -1 was produced at 60 A (600 mA cm -2) and 70 °C under 876 W of applied electrical power. The corresponding specific energy consumed in the process was 3.24 Wh·l -1H 2. The Faradic and electrical efficiencies were determined. Overall stack efficiencies of 73% and 85%, at 60 A and 70 °C, with respect to the low and high heating value of hydrogen, respectively, were obtained. These results confirmed the successful scale-up of a previous lab-scale device.
Original language | English |
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Pages (from-to) | 1939-1946 |
Number of pages | 8 |
Journal | International Journal of Hydrogen Energy |
Volume | 37 |
Issue number | 2 |
DOIs | |
Publication status | Published - Jan 2012 |
Externally published | Yes |