Fig. 3. Histograms showing the distributions of the peak currents, durations and charges of AgNPs with a size of 10 nm (a), 20 nm (b), 40 nm (c), 60 nm (d), and 80 nm (e). The red bar and the green bar are denoted I and II, corresponding to the current patterns of PI and PII, respectively (PI and PII are defined in the legend in Fig. 2). Inset: blue-filled part 1 of current traces. Black curves show Gaussian fits. The data were obtained from the chronoamperometry curves from a large population of oxidation events of individual AgNPs (more than 1000 events).
