In this paper, a new efficient anodic modification method for microbial fuel cells (MFCs) was developed. Fe was deposited on graphite felt by thermo decomposition of Fe(CO)(5) and then oxidized to Fe(III) oxides. Fe(III) oxides were proved Fe2O3 and FeOOH. The unmodified and Fe modified graphite felts were utilized as anode in MFCs. Fe(III) oxides on anode promoted the power generation of MFCs. The maximum power density of 18W/m(3) and the internal resistance of 51 Omega were obtained by the MFC with Fe modified anode, which was significantly superior to the performance of the MFC with unmodified anode. The electrochemical activity and attached bacterial density of Fe modified graphite felts were significantly higher than those of the unmodified graphite felts. This new method for anodic preparation promoted power generation, replaced manual brushing and Nafion solution, and reduced the cost
