Fig. 5From: The enhancement of microbial fuel cell performance by anodic bacterial community adaptation and cathodic mixed nickel–copper oxides on a graphene electrocatalystLSV curves obtained from RDE measurements of ORR on a Pt/C and b NiO–CuO/G in O2-saturated 50 mM PBS at various rotation speeds at a scan rate of 10 mV s−1. Koutecky–Levich (K–L) plots of c Pt/C and d NiO–CuO/G at different cathodic potentialsBack to article page