Cobalt Sulfides-MOF Modified Cathode and its Electrochemical Property in Marine Sediment Microbial Fuel Cell

Cathode modification of marine sediment microbial fuel cell(MSMFC) is an important way to increase its output power. As an effective catalyst for oxygen reduction reaction, cobalt sulfides-MOF can enhance cathode and cell electrochemical properties. Here is investigated the cobalt sulfides-MOF modified MSMFC cathode and the electrochemistry properties.Resultsindicate that cobalt sulfides-MOF modified cathode has good anti-polarization performance, highest reaction kinetic activity and highest output power. Its exchange current density reaches 11.11 mA/m², which is 2.14 times of that of the carbon felt cathode. Its highest output power reaches 8.27 mW/m², about five times of that of the plain carbon felt cathode.