厦门大学学报（自然科学版）2018，Vol.57Issue(3)：323-328,6.DOI:10.6043/j.issn.0438-0479.201708013
聚3,4-乙烯二氧噻吩在海洋微生物燃料电池阳极改性中的应用
Application of Poly 3,4-ethylenedioxythiophene in Anode Modification of Marine Microbial Fuel Cells
摘要
Abstract
In this study,poly (3,4-ethylenedioxythiophene)(PEDOT)was used to modify the graphite anode.The modified graphite anode was characterized with potentiostat,scanning electron microscope (SEM),energy disperse spectroscopy(EDS)and its effects on current generation of U-shaped microbial fuel cells (MFCs)were evaluated.The results showed that PEDOT was electrochemical-ly polymerized and covered mainly in a sheet-like form with 200 nm-size dots on the anode surface.Polarization tests of the MFCs showed that,compared with the unmodified anode,apparent internal resistance declined from 471 Ω to 390 Ω.Consequently,the cur-rent density at the plateau stage was enhanced greatly (by 2.33 times),i .e .,173.6 mA/m2 for PEDOT modified type vs.74.4 mA/m2 for the unmodified type.SEM analysis showed that there were more Shewanella sp.S2 cells adsorbed on the anode surface of the PEDOT modified type than that of the unmodified type.The overall results confirmed that it was mainly the charge interaction between PEDOT and exoelectrogens rather than the roughness improving marine MFC current production,because the roughness of both modified and unmodified anodes were much smaller than the size of S2 cells.关键词
聚3,4-乙烯二氧噻吩/微生物燃料电池/Shewanellasp.S2/海洋产电菌/导电聚合物Key words
poly (3,4-ethylenedioxythiophene)(PEDOT)/microbial fuel cell (MFC)/Shewanella sp.S2/marine exoelectrogens/conductive polymer分类
化学化工引用本文复制引用
陈占飞,郑智,宋宇宁,刘红豆,王珊,徐方成..聚3,4-乙烯二氧噻吩在海洋微生物燃料电池阳极改性中的应用[J].厦门大学学报（自然科学版）,2018,57(3):323-328,6.基金项目
国家自然科学基金(21273181) （21273181）
中国大洋重点项目(DY135-B-04,DY125-15-T-08) （DY135-B-04,DY125-15-T-08）
海洋地质国家重点实验室开放基金(MGK1207) （MGK1207）
清华大学环境模拟与污染控制国家重点实验室开放基金(11K08ESPCT) （11K08ESPCT）
