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. 2015 Sep 15;137(39):12627–12632. doi: 10.1021/jacs.5b07416

Figure 1.

Figure 1

(a) Cyclic voltammograms and (b) Nyquist plot of the impedance of a supercapacitor cell assembled with two electrodes based on 0.9 nm average pore size carbide-derived carbon (CDC), in an electrolyte composed of BMIM-PF6 dissolved in ACN. Electrode potentials are reported with respect to a Ag reference electrode. For the cyclic voltammograms the potential scan rate is 5 mV s–1, while for the impedance the potential is set to 0.4 V/Ag, and frequencies are sampled from 200 kHz to 10 mHz (inset: zoom of the high-frequency region).