Abstract:
Microbial Fuel Cells (MFCs) offer a revolutionary approach to sustainable energy generation by
utilizing microbes to convert organic materials into electrical energy. An intriguing interaction
between electrochemistry and microbial metabolism is at the core of an MFC. Organic substrates are
oxidized by microbes in the anodic chamber, which releases protons and electrons. After that, these
electrons are moved to the anode surface, where they produce an electrical current that may be
obtained externally. The electrochemical circuit is completed when the protons move from the cathode
through a proton exchange membrane and mix with oxygen and electrons to generate water.
Improving MFC performance through the incorporation of Metal-Organic Framework (MOF)
materials is a promising approach. MOFs are materials with huge surface areas and tunable chemical
functionalities that are very porous and have unusualstructural features. Our goal isto use MOF layers'
catalytic properties to increase the efficiency of MFCs by depositing them on the anode surface and
accelerating the kinetics of electron transfer. Additionally, the composite of Cu-MOF and Polyaniline
(PANI) gives this study a new perspective since PANI can increase the electrode surface's redox
activity and conductivity.
According to our experimental findings, adding MOF coatings to graphite felt (GF) anodes in MFCs
significantly increases power density. When Cu-MOF coatings were added, the MFC’s power density
with coated GF electrodes increased significantly to 86 mW/m². Moreover, when Cu-MOF/PANI
coatings were added, the MFC’s power density increased to 86 mW/m² , as compared to 33 mW/m2
of MFC with uncoated GF electrode, demonstrating the significant performance improvements that
may be achieved with this innovative electrode modification technique. These results highlight the
encouraging potential of MOF-based materials in raising MFC output and efficiency, opening the door
for a broader use of them in applications involving the production of sustainable energy
