Journal
APPLIED ENERGY
Volume 102, Issue -, Pages 1050-1056Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2012.06.003
Keywords
Carbon nanotube; Platinum; Nanocomposite electrode; Microbial fuel cell
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Funding
- Arus Perdana grant from Institute of fuel cell of National University of Malaysia [UKM-AP-TK-05-2009]
- King Abdullah Institute for Nanotechnology of King Saud University
- KN Toosi University of Technology of Tehran
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Microbial fuel cells (MFCs) hold great promise as an alternative for direct biochemical energy extraction from both biomass and wastewater. However, the commercialization and scaling-up of MFCs is not completely feasible, due to the high price of platinum (Pt) as a cathode catalyst. In this paper, we studied the use of a carbon nanotube (CNT) composite catalyst, to reduce the amount of Pt (without decline of efficiency) for moving towards the commercialization of MFCs. CNT/Pt composite electrodes would increase MFC power output by 8.7-32.2%; with respect to the pristine Pt as a catalyst for the cathode at a chemical oxygen demand (COD) substrate of 100 mg/l and 2000 mg/l, respectively. Moreover, the amount of Pt in the CNT/Pt electrode could be reduced by up to 25% of the amount necessary for a conventional Pt/carbon electrode. (c) 2012 Elsevier Ltd. All rights reserved.
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