In Situ Electrochemical Characterization of a Microbial Fuel Cell Biocathode Running on Wastewater

The electrochemical features of microbial fuel cells’ biocathodes, running on wastewater, were evaluated by cyclic voltammetry. Ex situ and in assays performed the redox processes associated with presence microorganisms and/or biofilms attained. Different controls using sterile media (abiotic cathode cell) membranes covering electrodes to evaluate source electrochemistry response (surface vs. biotic electrolyte). bacteria presence, particular when are allowed develop, was related enhanced active an improved catalytic activity, namely for oxygen reduction, compared results attained abiotic cell cathode. main composition also is agreement other reported studies. current study aims contributing establishment advantages biocathodes rather than abiotic, whose conditions frequently harder control contribute a better understanding bioelectrochemical occurring chambers electrode surfaces.