TY - JOUR
T1 - Ammonia treatment of carbon cloth anodes to enhance power generation of microbial fuel cells
AU - Cheng, Shaoan
AU - Logan, Bruce E.
N1 - Funding Information:
The authors thank Dr. Weifang Chen and Adam Redding for help with surface charge measurements and ammonium gas treatment. This research was supported by National Science Foundation Grant BES-0401885.
PY - 2007/3
Y1 - 2007/3
N2 - Changes in microbial fuel cell (MFC) architecture, materials, and solution chemistry can be used to increase power generation by microbial fuel cells (MFCs). It is shown here that using a phosphate buffer to increase solution conductivity, and ammonia gas treatment of a carbon cloth anode substantially increased the surface charge of the electrode (from 0.38 to 3.99 meq m-2), and improved MFC performance. Power increased to 1640 mW m-2 (96 W m-3) using a phosphate buffer, and further to 1970 mW m-2 (115 W m-3) using an ammonia-treated electrode. The combined effects of these two treatments boosted power production by 48% compared to previous results using this air-cathode MFC. In addition, the start up time of an MFC was reduced by 50%.
AB - Changes in microbial fuel cell (MFC) architecture, materials, and solution chemistry can be used to increase power generation by microbial fuel cells (MFCs). It is shown here that using a phosphate buffer to increase solution conductivity, and ammonia gas treatment of a carbon cloth anode substantially increased the surface charge of the electrode (from 0.38 to 3.99 meq m-2), and improved MFC performance. Power increased to 1640 mW m-2 (96 W m-3) using a phosphate buffer, and further to 1970 mW m-2 (115 W m-3) using an ammonia-treated electrode. The combined effects of these two treatments boosted power production by 48% compared to previous results using this air-cathode MFC. In addition, the start up time of an MFC was reduced by 50%.
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U2 - 10.1016/j.elecom.2006.10.023
DO - 10.1016/j.elecom.2006.10.023
M3 - Article
AN - SCOPUS:33847607418
SN - 1388-2481
VL - 9
SP - 492
EP - 496
JO - Electrochemistry Communications
JF - Electrochemistry Communications
IS - 3
ER -