Improved performance of anode with iron/sulfur-modified graphite in microbial fuel cell

The paper reports the operation of a new-design microbial fuel cell using compost leachate as a substrate, oxygen/electrodeposited MnOx cathode and a new-anode concept with graphite modified by an iron/sulfur solid chemical catalyst which almost eliminates the starting delay time and gives very high current and power densities, I ~ 25 A m− 3 at Pmax ~ 12 W m− 3 or I ~ 3.8 A m− 2 at Pmax ~ 1.8 W m− 2.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A new-design microbial fuel cell using compost leachate as a substrate ► A new-design microbial fuel cell using oxygen/electrodeposited MnOx cathode ► A new-anode concept with graphite modified by iron/sulfur solid chemical catalyst ► The new-concept FePS-graphite anode eliminates the starting delay time. ► Very high current and power densities, I ~ 25 A m− 3 at Pmax ~ 12 W m− 3