Fig. 2: Time series of hydrogen gas bubble evolution during chronoamperometric measurements on platinum mesh electrodes in the presence and absence of a magnetic field in g0 and µg.
From: Magnetically induced convection enhances water electrolysis in microgravity
a, Without a magnetic field, hydrogen gas bubbles coalesce and form a froth layer on a polycrystalline platinum mesh electrode in microgravity. b, The magnet at the bottom of the platinum electrode attracts hydrogen gas bubbles through magnetic polarization of the electrolyte and induces a convective flow through MHD stirring. c, For comparison, terrestrial HER experiments were carried out with the same electrode. d, Enhanced convection and gas bubble removal occurred in the presence of a magnetic field due to the magnetic forces. In all cases, the potential was set to −0.6 V versus NHE; 1 M HClO4 (aq.) with the addition of 1% (v/v) isopropanol was used as the electrolyte. All video recordings are available as Supplementary Video 2.
