Fig. 4: The proposed electron flow between the CH4-oxidizing and the CO2-reducing consortia.
From: Electrochemically coupled CH4 and CO2 consumption driven by microbial processes
a The bioelectrochemical system used for demonstrating the electron flow. b Electrical output of the bioelectrochemical system (BES) connecting CH4-oxidizing and CO2-reducing consortia, and corresponding controls that is without CH4/HCO3− (Biotic control) or without cells (Abiotic control). Data generated from n = 3 biologically independent samples for each group and error bars indicate standard deviation of the mean. c An image of scanning electron microscope of the biofilm attached on the anode. d An image of scanning electron microscope of the biofilm attached on the cathode; representative of 12 images. e The polarization curve of this bioelectrochemical system. Data generated from n = 3 biologically independent samples for each group and error bars indicate standard deviation of the mean.
