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. 2019 Jul 8;4(7):11785–11790. doi: 10.1021/acsomega.9b00863

Figure 3.

Figure 3

(A) Cl– doping and undoping on PPy; (B) scanning electron microscopy image of a carbon cloth electrode coated with PPy by electrochemical polymerization; (C) cyclic voltammetry of the PPy electrode in a 0.6 M NaCl solution; (D) galvanostatic cycle of the PPy electrode in a 0.6 M NaCl solution; (E) cycling performance of the PPy electrode: showing the coulombic efficiency and discharge capacity over 50 cycles; and (F) PPy electrode potential changed with different NaCl concentrations (0.024, 0.3, 0.6, 1, and 2 M).