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. 2023 Jan 26;6(1):49. doi: 10.1007/s42114-023-00630-7

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Fig. 1 — a CVs of different electrodes in a solution containing 1.0 M KCl and 0.2 M K₃[Fe(CN)₆] as a redox probe at scan rate of 100 mVs⁻¹. Zn(Ac)₂⋅2H₂O, graphene, and S precursors have a mass ratio of 6:1:1, 4:1:1, 2:1:1, and 6:2:1, respectively. b CV curves of different electrodes in a solution containing 1.0 M KCl and 0.2 M K₃[Fe(CN)₆]