Change in electrogenic activity of the microbial fuel cell (MFC) with the function of biocathode microenvironment as terminal electron accepting condition: Influence on overpotentials and bio-electro kinetics

▸ Influence of terminal electron acceptor on the electrogenesis of BES was evaluated. ▸ Strong electron acceptor conditions facilitated stable and gradual proton reduction. ▸ Aerobic metabolism at cathode showed higher electrogenesis for longer periods. ▸ Electron transfer resistances were reduced with aerobic metabolism at cathode. ▸ Biocathode application helps in effective utilization of reducing equivalents.