A family of Fe-N-C oxygen reduction electrocatalysts for microbial fuel cell (MFC) application: Relationships between surface chemistry and performances

Applied Catalysis. B, Environmental
Carlo SantoroPlamen Atanassov

Abstract

Different iron-based cathode catalysts have been studied for oxygen reduction reaction (ORR) in neutral media and then applied into microbial fuel cells (MFC). The catalysts have been synthesized using sacrificial support method (SSM) using eight different organic precursors named Niclosamide, Ricobendazole, Guanosine, Succinylsulfathiazole, Sulfacetamide, Quinine, Sulfadiazine and Pyrazinamide. Linear Sweep Voltammetry (LSV) curves were obtained for the catalysts using a O2 saturated in 0.1 M potassium phosphate buffer and 0.1 M KCl solution and a Rotating Ring Disk Electrode (RRDE) setup in order to study the ORR characteristics. Additionally, we analyze the peroxide yield obtained for each catalyst which helps us determine the reaction kinetics. Those catalysts have been mixed with activated carbon (AC), carbon black (CB) and PTFE and pressed on a metallic mesh forming a pellet-like gas diffusion electrode (GDE). Results showed that Fe-Ricobendazole, Fe-Niclosamide and Fe-Pyrazinamide had the highest cathode polarization curves and highest power densities output that was above 200 μWcm-2. Fe-Ricobendazole, Fe-Niclosamide, Fe-Pyrazinamide, Fe-Guanosine Fe-Succinylsulfathiazole and Fe-Sulfacetamide outperformed compared to Pt ...Continue Reading

References

Mar 18, 2003·Chemical Communications : Chem Comm·Nicolas ManoAdam Heller
Jul 9, 2004·Journal of the American Chemical Society·Valentine SoukharevAdam Heller
Nov 7, 2009·Bioresource Technology·Deepak PantKarolien Vanbroekhoven
Aug 23, 2011·Bioresource Technology·Jincheng WeiXia Huang
May 24, 2013·Environmental Science & Technology·David B WatsonScott C Brooks
Jan 16, 2014·Environmental Science & Technology·Xiaoyuan ZhangBruce E Logan
Feb 24, 2015·Biosensors & Bioelectronics·Ermete Antolini
Nov 30, 2015·Biosensors & Bioelectronics·Carlo SantoroPlamen Atanassov

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Citations

Feb 21, 2018·Scientific Reports·Carlo SantoroPlamen Atanassov
Feb 6, 2020·International Journal of Environmental Research and Public Health·Chao LiShihua Zhou
Feb 19, 2019·Journal of Power Sources·Carlo SantoroPlamen Atanassov
Oct 22, 2018·Water Research·Ruggero RossiBruce E Logan

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Methods Mentioned

BETA
X-ray
PCA

Software Mentioned

CASAXPS
SSM

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