TY  - JOUR
T1  - Comparative Study of Three Cathodic Electron Acceptors on the Performance of Medatiorless Microbial Fuel Cell
AU - Rodriguez-Martinez, J. AU - Martinez-Amador, S.Y. AU - Rodriguez-Garza, M.M. AU - Garza-Rodriguez, I.M. de la AU - Sosa-Santillan, G.J. AU - Garza-Garcia, Y. AU - Rios-Gonzalez, L.J. AU - Guerrero-Rangel, N. AU - Rodriguez-de la Garza, J.A. 
JO  - International Journal of Electrical and Power Engineering
VL  - 4
IS  - 1
SP  - 27
EP  - 31
PY  - 2010
DA  - 2001/08/19
SN  - 1990-7958
DO  - ijepe.2010.27.31
UR  - https://makhillpublications.co/view-article.php?doi=ijepe.2010.27.31
KW  - power density
KW  -Cathodic electron acceptor
KW  -microbial fuel cell
KW  -electrical energy
KW  -potassium permanganate
KW  -voltage
AB  - Microbial Fuel Cells (MFC) are capable of converting the chemical energy stored in the chemical compounds in a biomass to electrical energy with the aid of microorganisms. A better understanding of the relationship between the microbiological and electrical aspects of fuels cells is needed prior to successful MFC application. MFC constructed employing low-cost materials (salt bridge, graphite electrodes) without addition of any toxic mediators and using glucose (3 g L<SUP>-1</SUP>) as substrate and three different electron acceptors potassium permanganate (KMnO<SUB>4</SUB>), potassium ferricyanide (K<SUB>3</SUB>[Fe(CN)<SUB>6</SUB>]) and potassium dichromate (K<SUB>2</SUB>Cr<SUB>2</SUB>O<SUB>7</SUB>) in the cathode chamber without pH adjustment was assessed in the present study. The results showed that MFC performance with KMnO<SUB>4</SUB> was superior than K<SUB>3</SUB>[Fe(CN)<SUB>6</SUB>] and K<SUB>2</SUB>Cr<SUB>2</SUB>O<SUB>7</SUB>. Maximum voltage generation (OCV) and power density for KMnO<SUB>4</SUB> were 1.04 V and 7.29 mW m<SUP>-2</SUP>. Performance of MFC with K<SUB>3</SUB>[Fe(CN)<SUB>6</SUB>] and K<SUB>2</SUB>Cr<SUB>2</SUB>O<SUB>7</SUB> was much lower with a OCV and power density of 0.71 V; 0.92 mW m<SUP>-2</SUP> and 0.56 V; 0.79 mW m<SUP>-2</SUP>, respectively. Demonstrating that KMnO<SUB>4 </SUB>can be used as an effective cathodic electron acceptor to enhance power output on MFC.
ER  -