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. 2019 Aug 2;4(8):13209–13217. doi: 10.1021/acsomega.9b01359

Figure 5.

Figure 5

(a) Calculated quantum capacitance (CQ) as a function of local electrode potential (Φ) and (b) surface charge vs potential drop Φ between −0.6 and 0.6 eV for the triple-S-doped graphene with model-d and with different S concentrations, including 4.2, 6, 9.4, and 16.7%. The results are obtained with the supercells including 6 × 6, 5 × 5, 4 × 4, and 3 × 3.