Fig. 2: Electrochemical characterizations of the MFFC system.
From: High power density redox-mediated Shewanella microbial flow fuel cells
a A photograph of a Shewanella MFFC setup. b The voltage and current output from the MFFC under the open circuit and constant resistor (500 Ω) loading conditions. c Instant polarization curves and power output of the MFFC obtained at the scan rate of 0.5 mA cm−2 s−1. d Polarization curves and power output of the MFFC, measured with external resistors at the beginning (< 30 min) and after 16 h of operation. The external resistors applied are 995, 675, 559, 470, 330, 219, 150, 100, 68, 47, 33, 22 and 10 Ω, respectively.
