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Hydrogen diffusion through the steel membrane in conditions of its anodic polarization

“…media are: the hydrogen ions are completely present in the form of C 2 H 4 (OH) 2 H + and the HER is controlled by the recombination rds [14]. The membrane surface is solvated by the ethylene glycol molecules.…”

“…The activation energies of the H r surface diffusion (E m ) and the hydrogen absorption by the metal are the functions of the H-Fe bond energy. Before [14] it has been postulated, that H r atoms cause H 2 formation (according to the Tafel reaction or the Heyrovsky one) with following transition of the molecule hydrogen into the gas phase, and H s atoms are responsible for the hydrogen diffusion into the metal.…”

Size‐ and Shape‐Dependent Activity of Metal Nanoparticles as Hydrogen‐Evolution Catalysts: Mechanistic Insights into Photocatalytic Hydrogen Evolution

“…Formation of the FeÀH bond may also be the rate-determining step in the case of FeNPs, as reported for the electrocatalytic hydrogen evolution with bulk Fe. [56] However, the improvement of the catalytic reactivity of FeNPs is certainly required and the detailed mechanism for the catalytic hydrogen evolution with FeNPs has yet to be clarified.…”

Inhibition of Corrosion and Hydrogenation of Carbon Steel with a Number of Inhibitors in Weakly Acid Media Containing H2S and CO2

“…Apparently, the change of the nature of the limiting stage of RHE does not affect the solid-phase diffusion of hydrogen. Therefore, it may be suggested, with account taken of the fact that H s ads is responsible for the solid-phase diffusion [14], that the increase in i H ads in the presence of H 2 S and CO 2 is due to a shift of equilibrium (1) to the right [14]. By contrast, the adsorption of inhibitor onto the steel surface shifts equilibrium (1) to the left.…”