Spent Tea Leaves and Coffee Grounds as Potential Biocathode for Improved Microbial Electrosynthesis Performance

Figure 2

(a) Current density profiles illustrating the response current for control, STL, and SCG biocathode at an applied voltage of –0.8 V for MES cycle (a) 1, (b) 2, and (c) 3.

(a)

(b)

(c)