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Citation: Xinhong Peng, Xizhang Chu, Wei Liu, Shenghui Wang, Yi Zou, Xiaonan Wang. Bioelectricity-generating behavior of a chemically modified carbon black anode in microbial fuel cells[J]. Chinese Journal of Catalysis, ;2015, 36(8): 1326-1332. doi: 10.1016/S1872-2067(15)60880-4 shu

Bioelectricity-generating behavior of a chemically modified carbon black anode in microbial fuel cells

1.
Institute of Seawater Desalination and Multipurpose Utilization, State Oceanic Administration (SOA), Tianjin 300192, China

Corresponding author: Xinhong Peng,
Received Date: 12 January 2015
Available Online: 22 April 2015
Fund Project: 国家自然科学基金(51409052) (51409052)

The poor stability of the current output in microbial fuel cells (MFCs) inhibits its development and application on a large scale. In this work, a carbon black (CB) MFC anode was chemically activated using HNO₃ and KOH as pretreatment agents at low temperature, and further modification was made by Fe₃O₄ addition to the host CB matrix. The enhanced anodic capacitance contributes to a steady power output with neither overshoot nor undershoot below 1.1 F/cm². This resulted from the introduction of oxygen(nitrogen)-associated functionalities and the improvement of the surface wettability by the activation treatment. The chemical modification of a CB anode provides a feasible way to optimize power production and anodic capacitance in MFCs.
- Microbial fuel cell,
- Chemical activation,
- Magnetite addition,
- Anodic capacitance,
- Power behavior
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