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Luk'yanova V. O., Gots I. Y. Analysis of the Influence of the Cathodic Polarization Value on the Amount of Hydrogen Sorption of Al-Sm with the Alloy of Electrochemical Measurements. Electrochemical Energetics, 2020, vol. 20, iss. 4, pp. 206-?. DOI: 10.18500/1608-4039-2020-20-4-206-213, EDN: NBFQSK

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Analysis of the Influence of the Cathodic Polarization Value on the Amount of Hydrogen Sorption of Al-Sm with the Alloy of Electrochemical Measurements

Luk'yanova Viktoriya Olegovna, The Saratov State Technical University of Gagarin Yu. A.
Gots Irina Yur'evna, The Saratov State Technical University of Gagarin Yu. A.

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 $C_{\text{Н}}\!\!\sqrt{D}$, 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.


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