杨佘维, 黄志华, 孙健. 石墨烯-钴-聚吡咯复合电极改善藻菌微生物燃料电池性能的研究[J]. 华南师范大学学报(自然科学版), 2018, 50(3): 19-23. doi: 10.6054/j.jscnun.2018057
引用本文: 杨佘维, 黄志华, 孙健. 石墨烯-钴-聚吡咯复合电极改善藻菌微生物燃料电池性能的研究[J]. 华南师范大学学报(自然科学版), 2018, 50(3): 19-23. doi: 10.6054/j.jscnun.2018057
YANG S W, HUANG Z H, SUN J. Increased Electricity Generation Performance of Photo Microbial Fuel Cell by Grapheme-Polypyrrole-Cobalt Composite Electrode[J]. Journal of South China Normal University (Natural Science Edition), 2018, 50(3): 19-23. doi: 10.6054/j.jscnun.2018057
Citation: YANG S W, HUANG Z H, SUN J. Increased Electricity Generation Performance of Photo Microbial Fuel Cell by Grapheme-Polypyrrole-Cobalt Composite Electrode[J]. Journal of South China Normal University (Natural Science Edition), 2018, 50(3): 19-23. doi: 10.6054/j.jscnun.2018057

石墨烯-钴-聚吡咯复合电极改善藻菌微生物燃料电池性能的研究

Increased Electricity Generation Performance of Photo Microbial Fuel Cell by Grapheme-Polypyrrole-Cobalt Composite Electrode

  • 摘要: 通过恒电位法一步将氧化石墨烯、过渡金属Co和聚吡咯(PPy)三者共固定于碳毡电极表面,制备了复合膜电极,采用循环伏安法、交流阻抗对复合电极进行了电化学测试,并将其用作微生物燃料电池(MFC)的阳极和阴极,考察了其对MFC产电性能的改善作用. 结果表明:碳毡电极表面经修饰后,在三者协同作用下碳毡电极的电容显著增大. 这种修饰有效增加了电极比表面积和导电性能,减小了电荷传递阻抗,提高了电极的电子传递效率. 同时,该电极具有良好的生物相容性及稳定性,使藻菌MFC产电功率增大了3.1倍,且内阻减小了76%.

     

    Abstract: A grapheme-polypyrrole-cobalt composite electrode was prepared one-step constant potential method. The electrochemical performance of the composite electrode was characterized by cyclic voltammetry and AC impedance technique. The composite electrode was used as the anode and the cathode of the photo microbial fuel cell (PMFC) and the performance of MFC was investigated. The results showed that the modification of GO/PPy/Co greatly increased the capacitance,reduced the charge transfer impedance and improved the electron transfer efficiency of the carbon felt electrode. Also the electrode has good biocompatibility and stability. As the result,the PMFC produced a 3.1 times high power output with a coinstantaneous 76% reduction in internal resistance as compared the PMFC with bare carbon felt electrode.

     

/

返回文章
返回