Figure3. (A)CNF/RGO paper-based electrode preparation process. (B)SEM images of CNF/RGO electrodes.[65](C)The CNF/RGO/PPy paper based electrode with sandwich structure was prepared.(D)CNF/RGO/PPy electrode diagram. [66] (E)SEM images of CNF/RGO/PANi electrodes. (F)Comparison of electrochemical performance before and after loading PANi. [67] (G)Cellulose/RGO/Ag paper based supercapacitor picture and light bulb. [68]