Practical increases in power output from soil-based microbial fuel cells under dynamic temperature variations
Literature Information
Publication Date
2020-12-18
DOI
10.1039/D0SE01406K
Impact Factor
6.367
Authors
Lingling Gong, Mehran Abbaszadeh Amirdehi, Amine Miled
View Original
Abstract
Soil-based microbial fuel cells (MFCs) are excellent candidates to meet the need for continuous energy sources in low-power and remote sensing applications and to perform useful functions such as soil remediation. Under constant thermal conditions, soil-based MFC performance is known to correlate positively with temperature due to increased bacterial metabolism. Rather than inhibit MFC operation, we show in this work that dynamic thermal conditions can actually strongly improve performance. By varying the temperature cycling times and temperature setpoints in experiments, the average power outputs were increased by 300 to 400%, and current densities were increased by 200%. The same methodology was applied to liquid MFCs but did not show the same intense response.
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