Improved structures of stainless steel current collector increase power generation of microbial fuel cells by decreasing cathodic charge transfer impedance

Microbial fuel cell (MFC) is an innovative environmental and energy system that converts biomass energy in wastewater into electrical energy and purify wastewater by using microbial electrochemical reaction For the practical implementation of a MFC as a next generation wastewater treatment process, MFC performance should be enhanced far more than the current level [6, 7]. Significant advances have been made in improving MFC architecture, understanding the microbial community and their interaction and elucidating electrochemical reactions in last decades. However, in order to make MFC technology commercially feasible, a number of limitations need to be overcome. Among them, improving cathodic performance is one of the major challenges to the practical implementation For this reason, development of cathode technology with improved performance and low cost has been investigated a lot in the MFC field