“…In much of the aqueous flow battery research to date, commercial carbon materials in the form of felts, cloths and papers, have been the preferred electrodes due to their high electronic conductivity, high surface area, chemical and mechanical stability, and inhibition of water electrolysis. There exist a number of schemes for thermal 6 , chemical 7 and electrochemical pretreatments, and modifications such as laser perforation 8 , carbon nanotube decoration 9 and catalyst growth 10 to enhance the electrode surface area 11 , catalytic properties 12 , and wettability 13 . However, all of these electrode preparation and enhancement procedures start with carbon electrodes produced by relatively few vendors, and most analyses and cell designs assume these electrodes behave as ideal homogeneous, isotropic, biphasic porous materials.…”