Publisher : Korean Society of Environmental Engineering
DOI : 10.4491/eer.2013.18.3.145
Title & Authors
Optimal Metal Dose of Alternative Cathode Catalyst Considering Organic Substances in Single Chamber Microbial Fuel Cells Nam, Joo-Youn; Moon, Chungman; Jeong, Emma; Lee, Won-Tae; Shin, Hang-Sik; Kim, Hyun-Woo;
Optimal preparation guidelines of a cathode catalyst layer by non-precious metal catalysts were evaluated based on electrochemical performance in single-chamber microbial fuel cells (MFCs). Experiments for catalyst loading rate revealed that iron(II) phthalocyanine (FePc) can be a promising alternative, comparable to platinum (Pt) and cobalt tetramethoxyphenylporphyrin (CoTMPP), including effects of substrate concentration. Results showed that using an optimal FePc loading of was equivalent to a Pt loading of on the basis of maximum power density. Given higher loading rates or substrate concentrations, FePc proved to be a better alternative for Pt than CoTMPP. Under the optimal loading rate, it was further revealed that 40 wt% of FePc to carbon support allowed for the best power generation. These results suggest that proper control of the non-precious metal catalyst layer and substrate concentration are highly interrelated, and reveal how those combinations promote the economic power generation of single-chamber MFCs.
Alternative catalyst;Cobalt tetramethoxyphenylporphyrin;Iron(II) phthalocyanine;Microbial fuel cells;Optimization;
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