Microbial fuel cell based on Ni-tetra sulfonated phthalocyanine cathode and graphene modified bioanode

A Microbial Fuel Cell (MFC) has been constructed using stainless steel modified with reduced graphene oxide (rGO) by layer by layer (LbL) original method as the bioanode and carbon felt modified with polyNi(II)tetrasulfophthalocyanine (poly-NiTSPc) as the cathode. In this work, an easy method is reported to fabricate a MFC with long time life using compost garden leachate as source of micro-organisms for the electroactive biofilm. rGO permitted to obtain stable power density over a period of 40 days (24.8 mW/m2 in presence of pure O2). The cathode presented in this paper allows to obtain a power density 7.5 times higher than using a Pt cathode.