The success of Plant-MFCs is strongly depending on their long-term performance. Hence, the prerequisite is a stable and long-term power production. However, the cell potential of plant-MFCs is often not stable of time. For example figure 1 demonstrates the diurnal courses of the cell potentials of two plant-MFCs planted with Glyceria maxima and Phalaris arundinacea. In both Plant-MFCs the cell potential fluctuates strongly from night to day. Especially in the case of Phalaris arundinacea the cell potential shows a diffuse diurnal pattern, whereas Glyceria maxima shows a clear pattern. There can be several reasons for this dynamic effect, e.g. changes in root exudation, oxygen release by roots, competition between different groups of bacteria, temperature effects, etc.
展开▼
