Novel graphite sheet used as an anodic material for high-performance microbial fuel cells

• Novel graphite sheet can enhance the charge transfer capability of the bacteria to the anode.
• Microbial fuel cell with novel graphite sheet anode delivers a power density of 2249 mW/m2.
• Novel graphite sheet is promising in the application of microbial fuel cells.

Novel graphite sheet (GTS) has been used as anodic catalyst in microbial fuel cell (MFC) base on Escherichia coli (ATCC 25922) and characterized by cyclic voltammogram (CV) and polarization curve. Findings from these measurements revealed that GTS showed an excellent electrochemical performance. The two-chambered MFC operated with the GTS anode delivered a maximum power density of 2249 mW/m2. Scanning electron microscopy (SEM) results indicate that the high power output could be attributed to the high biocompatibility of the GTS. These results demonstrate that the GTS is promising in the application of microbial fuel cells.