期刊
BIOCHEMICAL ENGINEERING JOURNAL
卷 73, 期 -, 页码 49-52出版社
ELSEVIER
DOI: 10.1016/j.bej.2013.01.011
关键词
Goretex fabric; Diffusion layer; Microbial fuel cell; Carbon mesh
资金
- King Abdullah University of Science and Technology (KAUST) [KUS-I1-003-13]
- China Scholarship Council (CSC)
A scalable and pre-manufactured cloth material (Goretex (R) fabric) was used as a diffusion layer (DL) material as a replacement for a liquid-applied polytetrafluoroethylene (PTFE) DL. Cathodes with the Goretex fabric heat-bonded to the air-side of carbon cloth cathode (CC-Goretex) produced a maximum power density of 1330 +/- 30 mW/m(2), similar to that using a PTFE DL (1390 +/- 70 mW/m(2), CC-PTFE). This method was also successfully used to produce cathodes made of inexpensive carbon mesh, which resulted in only slightly less power (1180 +/- 10 mW/m(2)) (CM-Goretex). Coulombic efficiencies were a function of current density, with the highest value for CC-PTFE cathodes (63%), similar to CC-Goretex cathodes (61%), and slightly larger than that obtained for the CM-Goretex cathodes (54%). These results show that a commercially available fabric can easily be used as the DL in an MFC, achieving performance similar to that obtained with a more labor-intensive process based on liquid-applied DLs using PTFE. (C) 2013 Elsevier B.V. All rights reserved.
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