title: High catalytic activity and pollutants resistivity using Fe-AAPyr cathode catalyst for microbial fuel cell application.
abstract: For the first time, a new generation of innovative non-platinum group metal catalysts based on iron and aminoantipyrine as precursor (Fe-AAPyr) has been utilized in a membraneless single-chamber microbial fuel cell (SCMFC) running on wastewater. Fe-AAPyr was used as an oxygen reduction catalyst in a passive gas-diffusion cathode and implemented in SCMFC design. This catalyst demonstrated better performance than platinum (Pt) during screening in "clean" conditions (PBS), and no degradation in performance during the operation in wastewater. The maximum power density generated by the SCMFC with Fe-AAPyr was 167 ± 6 μW cm(-2) and remained stable over 16 days, while SCMFC with Pt decreased to 113 ± 4 μW cm(-2) by day 13, achieving similar values of an activated carbon based cathode. The presence of S(2-) and showed insignificant decrease of ORR activity for the Fe-AAPyr. The reported results clearly demonstrate that Fe-AAPyr can be utilized in MFCs under the harsh conditions of wastewater.
authors.affiliation: Department of Chemical &Biological Engineering, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Carlo
authors.initials: C
authors.lastname: Santoro
authors.affiliation: Department of Chemical &Biological Engineering, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Alexey
authors.initials: A
authors.lastname: Serov
authors.affiliation: Department of Chemical &Biological Engineering, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Claudia W
authors.initials: CW
authors.lastname: Narvaez Villarrubia
authors.affiliation: Department of Chemical &Biological Engineering, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Sarah
authors.initials: S
authors.lastname: Stariha
authors.affiliation: Department of Chemical &Biological Engineering, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Sofia
authors.initials: S
authors.lastname: Babanova
authors.affiliation: Department of Chemical &Biological Engineering, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Kateryna
authors.initials: K
authors.lastname: Artyushkova
authors.affiliation: Department of Civil Engineering, Center for Emerging Energy Technologies, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Schuler
authors.affiliation: Department of Chemical &Biological Engineering, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Plamen
authors.initials: P
authors.lastname: Atanassov