Fig. 2: Flow structure within H2 bubble residing atop a carpet of microbubbles. | Nature Communications

Fig. 2: Flow structure within H2 bubble residing atop a carpet of microbubbles.

From: Electrolyte droplet spraying in H2 bubbles during water electrolysis under normal and microgravity conditions

Fig. 2

The dynamics of H2 bubble presented in terms of (a) electric current at  −3 (top) and  −7 V (bottom), supplemented with shadowgraphs throughout its evolution at  −3 V. The rightmost image zooms into the middle part of the bubble at t/T = 0.8, shown by the red rectangle. b, c Snapshots highlighting the streaklines of the droplets over Δ t = 25 ms. d, e The streamlines of the averaged drop velocity field. Before velocity calculations, optical distortions (aberration) caused by the curvature of the bubble are analytically corrected (see Methods and Supplementary Note 2). The measurements in (b–d) and (c–e) performed in 0.1 mol L−1 H2SO4 at  −3 and  −7 V vs. Ag/AgCl, respectively. For further details, we refer to Supplementary Movies 2 to 4. Source data are provided as a Source Data file.

Back to article page