海泥电池Fe_3O_4/PANI复合阳极制备及电化学性能

由FeCl2、FeCl3、樟脑磺酸及苯胺合成Fe3O4/PANI,将Fe3O4/PANI粉末与碳粉按1∶1混合均匀,同聚四氟乙烯乳液调和后,压涂在石磨电极表面,制成Fe3O4/PANI复合阳极并测试其电化学性能。结果表明,改性后阳极表面细菌附着数量提高2倍多,有利于细菌附着。复合阳极抗极化性能明显提高,动力学活性明显增强,电流密度增加,最大功率密度提高到300 mW/m2。该复合阳极可望用于海泥电池的应用开发研究。

Preparation and electrochemical performance of Fe_3O_4/PANI composite anode for marine sediment microbial fuel cell

Fe3O4/PANI composite anode was prepared by pressed the complex（Fe3O4/PANI ∶carbon=1 ∶1） into the graphite electrode and the Fe3O4/PANI was prepared from FeCl2,FeCl3,camphor sulfonic acid and aniline.Its electrochemical performance was also investigated.The results indicated that the amount of attached bacteria on the surface of anode after modification increased more than twofold,therefore the surface modification was beneficial to increase bioadhesion.The composite anode has a higher polarization behavior than the plain,and its kinetic activity is also enhanced greatly compared with the plain anode.The current density increases,and the maximum power density increases to 300 mW/m2.The composite anode material could be utilized in developing marine sediment microbial fuel cell with higher power output.