Design of Iron(II) Phthalocyanine-Derived Oxygen Reduction Electrocatalysts for High-Power-Density Microbial Fuel Cells

作者：Santoro Carlo; Gokhale Rohan; Mecheri Barbara; D' Epifanio Alessandra; Licoccia Silvia; Serov Alexey; Artyushkova Kateryna; Atanassov Plamen

来源：Chemsuschem, 2017, 10(16): 3243-3251.

DOI：10.1002/cssc.201700851

Iron(II) phthalocyanine (FePc) deposited onto two different carbonaceous supports was synthesized through an unconventional pyrolysis-free method. The obtained materials were studied in the oxygen reduction reaction (ORR) in neutral media through incorporation in an air-breathing cathode structure and tested in an operating microbial fuel cell (MFC) configuration. Rotating ring disk electrode (RRDE) analysis revealed high performances of the Fe-based catalysts compared with that of activated carbon (AC). The FePc supported on Black-Pearl carbon black [Fe-BP(N)] exhibits the highest performance in terms of its more positive onset potential, positive shift of the half-wave potential, and higher limiting current as well as the highest power density in the operating MFC of (243 +/- 7) mu W cm(-2), which was 33% higher than that of FePc supported on nitrogen-doped carbon nanotubes (Fe-CNT(N); 182 +/- 5 mu W cm(-2)). The power density generated by Fe-BP(N) was 92% higher than that of the MFC utilizing AC; therefore, the utilization of platinum group metal-free catalysts can boost the performances of MFCs significantly.

• 出版日期2017-8-24