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. 2019 Jun 27;9(7):923. doi: 10.3390/nano9070923

Figure 2.

Figure 2

(a,b) The representative Bode plots of the graphene electrode and the fitting curve based on the Randles circuit; (c,d) the extracted Q0 and α based on the Randles circuit. Note in (b): Rs represents the series resistance, including the access resistance and electrolyte resistance; CPE is the constant phase element; Zf is the faradaic impedance, and Zw is the Warburg impedance.

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