Hierarchically Three-Dimensional Nanofiber Based Textile with High Conductivity and Biocompatibility As a Microbial Fuel Cell Anode.
Microbial fuel cells (MFCs) encompass complex bioelectrocatalytic reactions that converting chemical energy of organic compounds to electrical energy. Improving the anode configuration is thought to be a critical step for enhancing MFCs performance. In present study, a hierarchically structured textile polypyrrole/poly(vinyl alcohol-co-polyethylene) nanofibers/poly(ethylene terephthalate) (referred to PPy/NFs/PET) is shown to be excellent anode for MFCs. This hierarchical PPy/NFs/PET anode affords an open porous and three-dimensional interconnecting conductive scaffold with larger surface roughness, facilitating microbial colonization and electron transfer from exoelectrogens to the anode. The mediator-less MFC equipped with PPy/NFs/PET anode achieves a remarkable maximum power density of 2420 mW m(-2) with Escherichia coli as the microbial catalyst at the current density of 5500 mA m(-2), which is approximately 17 times higher compared to a reference anode PPy/PET (144 mW m(-2)). Considering the low cost, low weight, facile fabrication, and good winding, this PPy/NFs/PET textile anode promises a great potential for high-performance and cost-effective MFCs in a large scale.
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.
Yifei
Y
Tao
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.
Qiongzhen
Q
Liu
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.
Jiahui
J
Chen
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.
Bo
B
Wang
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.
Yuedan
Y
Wang
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.
Ke
K
Liu
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.
Mufang
M
Li
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.
Haiqing
H
Jiang
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.
Zhentan
Z
Lu
College of Materials Science and Engineering, Wuhan Textile University , Wuhan 430200, China.|College of Chemistry, Chemical Engineering and Biotechnology, Donghua University , Shanghai 201620, China.
Dong
D
Wang
D001674:Bioelectric Energy Sources; D004560:Electricity; D004566:Electrodes; D057139:Nanofibers; D013784:Textiles