INFLUENCE OF THE NATURE OF AN ELECTROLYTE AND PRELIMINARY ANODIC POLARIZATION ON THE HYDROGEN FLOW-THROUGH AN IRON MEMBRANE

The influence of preliminary anodic polarization (AP) and chemical nat ure of the electrolyte on the penetration of hydrogen through an iron membrane was studied by the Devanathan-Stachursky method for anodic an d cathodic potentials in acid sulfate electrolytes. Hydrogen absorptio n can be activated in both potential areas due to preliminary anodic f ormation of the surface with increased reductive activity relative to hydroxonium ions and water. Complexing reagents in slightly acid elect rolytes are capable of activating hydrogen penetration by dissolving i ron oxihydroxides, formed on the membrane surface during AP, as well a s by participating their protonated forms in anodic dissolution forms adsorbed hydroxonium ions.