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Kodali M, Santoro C, Serov A, et al. Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts. Electrochim Acta. 2017;231:115-124doi: 10.1016/j.electacta.2017.02.033.
Kodali, M., Santoro, C., Serov, A., Kabir, S., Artyushkova, K., Matanovic, I., & Atanassov, P. (2017). Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts. Electrochimica acta, 231115-124. https://doi.org/10.1016/j.electacta.2017.02.033
Kodali, Mounika, et al. "Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts." Electrochimica acta vol. 231 (2017): 115-124. doi: https://doi.org/10.1016/j.electacta.2017.02.033
Kodali M, Santoro C, Serov A, Kabir S, Artyushkova K, Matanovic I, Atanassov P. Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts. Electrochim Acta. 2017 Mar 20;231:115-124. doi: 10.1016/j.electacta.2017.02.033. PMID: 28413228; PMCID: PMC5384433.
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Electrochim Acta. 2017 Mar 20;231:115-124. doi: 10.1016/j.electacta.2017.02.033.

Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts.

Electrochimica acta

Mounika Kodali, Carlo Santoro, Alexey Serov, Sadia Kabir, Kateryna Artyushkova, Ivana Matanovic, Plamen Atanassov

Affiliations

  1. Center Micro-Engineered Materials (CMEM), Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM, USA.
  2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.

PMID: 28413228 PMCID: PMC5384433 DOI: 10.1016/j.electacta.2017.02.033

Abstract

The oxygen reduction reaction (ORR) is one of the major factors that is limiting the overall performance output of microbial fuel cells (MFC). In this study, Platinum Group Metal-free (PGM-free) ORR catalysts based on Fe, Co, Ni, Mn and the same precursor (Aminoantipyrine, AAPyr) were synthesized using identical sacrificial support method (SSM). The catalysts were investigated for their electrochemical performance, and then integrated into an air-breathing cathode to be tested in "clean" environment and in a working microbial fuel cell (MFC). Their performances were also compared to activated carbon (AC) based cathode under similar conditions. Results showed that the addition of Mn, Fe, Co and Ni to AAPyr increased the performances compared to AC. Fe-AAPyr showed the highest open circuit potential (OCP) that was 0.307 ± 0.001 V (vs. Ag/AgCl) and the highest electrocatalytic activity at pH 7.5. On the contrary, AC had an OCP of 0.203 ± 0.002 V (vs. Ag/AgCl) and had the lowest electrochemical activity. In MFC, Fe-AAPyr also had the highest output of 251 ± 2.3 μWcm

Keywords: Fe-AAPyr; High Power Generation; Microbial Fuel Cells; Oxygen Reduction Reaction; PGM-free catalysts

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