Open AccessAnalysis of the Influence of the Cathodic Polarization Value on the Amount of Hydrogen Sorption of Al-Sm with the Alloy of Electrochemical Measurements
Author(s) -
V. O. Lukyanova,
I. Yu. Gots
Publication year - 2020
Publication title -
èlektrohimičeskaâ ènergetika
Language(s) - English
Resource type - Journals
eISSN - 1680-9505
pISSN - 1608-4039
DOI - 10.18500/1608-4039-2020-20-4-206-213
Subject(s) - hydrogen , electrochemistry , adsorption , electrolyte , diffusion , polarization (electrochemistry) , alloy , sorption , cathodic protection , chemistry , analytical chemistry (journal) , reaction rate constant , inorganic chemistry , materials science , electrode , thermodynamics , kinetics , metallurgy , physics , organic chemistry , chromatography , quantum mechanics
The effect of cathodic polarization on the rate of hydrogen sorption from an aqueous organic electrolyte on an Al-Sm alloy using the potentiostatic and potentiodynamic methods were studied. The obtained data allowed us to calculate the diffusion-kinetic characteristics of this process, such as the interstitial constant, diffusion constant CН √ D, constant current iconst, diffusion coefficient D and adsorption of hydrogen atoms G. The number of nuclei decreases, but their mass and radius increase in the potential range from –2.0 V to –2.4 V. The adsorption of hydrogen on the surface increases; which confirms that predominance of the discharge of hydrogen atoms occurs at more negative potentials according to the recombination mechanism.