The influence of the anodic polarization on the H diffusion flux iH through a steel membrane was studied in the C2H4(OH)2-H2O-H+ solutions containing 1mM thiourea or sodium hydroarsenate. The electrolyte composition was xM HCl-(1-x)M LiCl, where x was 0.01 to 0.99mol/l. The dependence of the H diffusion flux through the membrane on the anodic polarization value passes through a maximum regardless of the nature of the solvent, characteristics of the volume or surface solvation, nature of the rate-determining step of the H evolution reaction and presence or absence of hydrogenation stimulators. It was not related to the pH value. It was caused by the different dependence of two forms of Hads on the surface charge of the entrance membrane side.

Hydrogen Diffusion through the Steel Membrane in Conditions of its Anodic Polarization. M.V.Vigdorovich, V.I.Vigdorovich, L.E.Tsygankova: Journal of Electroanalytical Chemistry, 2006, 596[1], 1-6