
APPROVED Using aligned marine seaweeds as a feedstock to produce biochar for enhancing direct interspecies electron transfer (DIET) in microbial electrolysis cells (MECs) is feasible and represents a promising, yet underexplored, research direction. Current bioelectrochemical research indicates that biochars with appropriate conductivity and surface chemistry can facilitate DIET in systems like anaerobic digestion and microbial fuel cells (MFCs). Similar principles can, in principle, be extended to MECs. Below is a novel strategy for using marine...