Graphene oxide supported magnesium oxide as an efficient cathode catalyst for power generation and wastewater treatment in single chamber microbial fuel cells

2017 ◽  
Vol 328 ◽  
pp. 106-116 ◽  
Author(s):  
Meng Li ◽  
Shaoqi Zhou ◽  
Mingyi Xu
RSC Advances ◽  
2013 ◽  
Vol 3 (21) ◽  
pp. 7902 ◽  
Author(s):  
Santimoy Khilari ◽  
Soumya Pandit ◽  
M. M. Ghangrekar ◽  
Debabrata Das ◽  
Debabrata Pradhan

2021 ◽  
Vol 13 (14) ◽  
pp. 8057
Author(s):  
Mostafa Ghasemi ◽  
Mehdi Sedighi ◽  
Yie Hua Tan

In this paper, we reported the fabrication, characterization, and application of carbon nanotube (CNT)-platinum nanocomposite as a novel generation of cathode catalyst in microbial fuel cells (MFCs) for sustainable energy production and wastewater treatment. The efficiency of the carbon nanocomposites was compared by platinum (Pt), which is the most effective and common cathode catalyst. This nanocomposite is utilized to benefit from the catalytic properties of CNTs and reduce the amount of required Pt, as it is an expensive catalyst. The CNT/Pt nanocomposites were synthesized via a chemical reduction technique and the electrodes were characterized by field emission scanning electron microscopy, electronic dispersive X-Ray analysis, and transmission electron microscopy. The nanocomposites were applied as cathode catalysts in the MFC to obtain polarization curve and coulombic efficiency (CE) results. The catalytic properties of electrodes were tested by linear sweep voltammetry. The CNT/Pt at the concentration of 0.3 mg/cm2 had the highest performance in terms of CE (47.16%), internal resistance (551 Ω), COD removal (88.9%), and power generation (143 mW/m2). In contrast, for the electrode with 0.5 mg/L of Pt catalyst, CE, internal resistance, COD removal, and power generation were 19%, 810 Ω, 96%, and 84.1 mW/m2, respectively. So, it has been found that carbon nanocomposite cathode electrodes had better performance for sustainable clean energy production and COD removal by MFC.


2013 ◽  
Vol 38 (26) ◽  
pp. 11543-11551 ◽  
Author(s):  
C. Santoro ◽  
I. Ieropoulos ◽  
J. Greenman ◽  
P. Cristiani ◽  
T. Vadas ◽  
...  

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