微生物燃料电池
阳极
碳纤维
材料科学
功率密度
纳米技术
化学工程
电子转移
纳米-
碳化
制作
纳米颗粒
化学
电极
复合材料
扫描电子显微镜
有机化学
物理化学
病理
物理
功率(物理)
医学
量子力学
复合数
替代医学
工程类
作者
Mei hua,Yingyu Lin,Xin Li,Wenguang Zhang,Zhuoyue Chen,Yuxian Yang,Guanjie Li,Yikeng Lu,Weishan Li
标识
DOI:10.1016/j.electacta.2021.139618
摘要
Microbial fuel cells (MFCs) are attractive because they can harvest energy from sewage, but challenge remains in achieving valuable power density. To address this issue, we develop a novel binder-free anode, Nano-Fe3[email protected]@CC, by assembling 2D Zn-Fe-MOF arrays on the fibers of carbon cloth and subsequently carbonizing MOF. This fabrication results in a unique configuration that nano-Fe3C particles are highly dispersed on N-doped carbon arrays vertically standing on carbon fibers. The standing 2D arrays not only benefit bacterial adhesion but also guarantee nano-Fe3C particles with abundant sites for the charge transfer between bacteria and anode. Consequently, a superior power density (1606 ± 52 mW m − 2) is harvested when the resultant Nano-Fe3[email protected]@CC is evaluated as the anode in MFCs based on a mixed bacterium culture. The facile fabrication of Nano-Fe3[email protected]@CC paves a promising path for the application of MFCs in large scale.
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