Fig. 3: Effect of nanobubble size on the onset potential of OER. | Nature Communications

Fig. 3: Effect of nanobubble size on the onset potential of OER.

From: Macroscopic bubble generation promoted by nanobubble seeds as a traceless anti-fluctuation strategy for water splitting

Fig. 3

a Time-dependent variation of oxygen NB diameter and number density within 10 h. b OER polarization curves of the Pt/Au electrodes (1 × 1 cm2) with different size NBs’ adsorption (colored) and without NBs’ adsorption (black) (with 100% iR correction and Rs = 3.72 ± 0.183 Ω. The non-iR corrected voltammograms are provided in Supplementary Fig. S30). c The OER overpotential at 0.4 mA/cm2 is statistically derived from (b) and the corresponding calculated supersaturation ratio S of the adsorbed NBs with different sizes. d Schematic illustration of the difference in the transformation from NBs to MBs with small (left) and big (right) nuclei. Source data for (a–c) are provided as a Source Data file.

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