On a Promising Electrode Material for Microbial Biofuel Cells Based on Natural Polymers

A production technology for conductive materials with different morphologies is developed: flat (films) and porous (sponges) composites suitable for use as the anode of a biofuel cell. Chitosan is used as a polymer matrix, and carbon-black particles with an average size of aggregates of 17 μm act as a conductive component. The morphological, electrically conductive, and mechanical characteristics of the composites are studied. Based on the functional characteristics, the optimum concentration of the filler in the composite materials for their use as the electrode of a microbial biofuel cell is 5 wt %.