The construction of rod-like polypyrrole network on hard magnetic porous textile anodes for microbial fuel cells with ultra-high output power density
The construction of rod-like polypyrrole network on hard magnetic porous textile anodes for microbial fuel cells with ultra-high output power density
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DOI：
10.1016/j.jpowsour.2018.11.090
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发表时间：
2019-02
影响因子：
9.2
通讯作者：
Fei Li;Dong Wang;Qiongzhen Liu;Boyu Wang;Weibing Zhong;Mufang Li;Ke Liu;Zhentan Lu;Haiqing Jiang;Qinghu Zhao;C. Xiong
中科院分区：
文献类型：
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作者：
Fei Li;Dong Wang;Qiongzhen Liu;Boyu Wang;Weibing Zhong;Mufang Li;Ke Liu;Zhentan Lu;Haiqing Jiang;Qinghu Zhao;C. Xiong
本研究试图通过引入磁性来促进柔性纺织品基阳极上微生物膜的形成，并提高活微生物的性能。通过将SrFe 12 O 19纳米粒子均匀分散在聚乙烯醇-乙烯共聚物（PVA-co-PE）纳米纤维中，并在柔性复合无纺布表面形成三维聚吡咯（PPy）网络，设计并制备了一种磁性导电微生物燃料电池阳极.配备有磁化阳极的双室MFC显示出3317 mW m-2的最大功率密度，其显著大于非磁化阳极的最大功率密度（2471 mW m-2）。本研究表明，提供固有磁场的硬磁阳极可以大大促进E的生物电化学反应速率。大肠杆菌，并降低MFC系统中的阳极电荷转移电阻。
This study attempts to prompt the formation of microorganism films on flexible textile-based anodes and enhances the performance of living microorganisms by introducing magnetic properties to the anodes. A magnetic and electrically conductive anode for a microbial fuel cell is designed and fabricated by encapsulating uniformly dispersed SrFe12O19nanoparticles into the poly(vinyl alcohol-co-ethylene) (PVA-co-PE) nanofibers and forming a three-dimensional (3D) polypyrrole (PPy) network on the surface of flexible composite nanofiber based fabric. A dual-chamber MFC equipped with the magnetized anode shows a maximum power density of 3317 mW m−2, which is significantly larger than that of the non-magnetized anode (2471 mW m−2). This study demonstrates that the hard-magnetic anode providing an inherent magnetic field can greatly promote bio-electrochemical reaction rates ofE. coli, and decrease the anode charge transfer resistance in a MFC system.