聚苯胺
阳极
材料科学
碳纤维
化学工程
微生物燃料电池
碳化
比表面积
复合材料
电极
化学
催化作用
聚合物
扫描电子显微镜
有机化学
复合数
物理化学
工程类
聚合
作者
Demin Jiang,Hao Xie,Huina Chen,Kai Cheng,Liang Li,Kun Xie,Yuqiao Wang
标识
DOI:10.1016/j.ijhydene.2022.08.117
摘要
The inefficient extracellular electron transfer (EET) is detrimental to power generation and waste degradation in microbial fuel cells (MFCs). Herein, we report a self-supporting anode for MFCs prepared by graphitization of steamed bread slices followed by in-situ polymerization to fabricate [email protected] macroporous carbon foam ([email protected]). The natural nitrogen-containing wheat flour was fermented and carbonized to form NMCF with a high specific surface area of 818.1 m2 g−1. After the NMCF surface modified by PANI, the enhanced hydrophilicity and conductivity of the [email protected] anode would facilitate microbial adhesion, biofilm formation, and electron transfer. The surface improvements enhance the EET process for high-performance MFCs, including a short startup time of 21.7 h, high maximum output power density of 1160 ± 17 mW m−2, and decolourisation efficiency of 88.6 ± 1.2% for 36 h. The chemical oxygen demand removal efficiency was about 84.6 ± 1.1% at end of the operating cycles. This work provides a good foundation for our future development of carbon-based electrode materials for energy conversion and storage devices.
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