Abstract

PAN-based carbon fiber was used to prepare brush anode, and its electrochemical performance was investigated in a tubular microbial fuel cells. Experimental results showed that electricity production can be enhanced by using brush anode, with maximum current (up to 25 mA) much higher than that of reported microbial fuel cells using other types of carbon materials. Heat treatment is demonstrated to be an effective method to further increase the performance of the brush anode, not only reducing the start-up time of the microbial fuel cells, but also increasing the duration of electricity production and polarization properties.

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