Figure 4

Time course of the produced current (A), the output voltage (B), and the electrode potentials (vs. SHE) (C) of the air–cathode MFC when the MFC was connected to the LVBM with 4-stage, 8-stage, and 20-stage multiplier circuits, respectively.

Time course of the produced current (A), the output voltage (B), and the electrode potentials (vs. SHE) (C) of the air–cathode MFC when the MFC was connected to the LVBM with 4-stage, 8-stage, and 20-stage multiplier circuits, respectively.