THE MEMBRANE OF THE PD-SC COMPOSITION FOR THE PRODUCTION OF ULTRAPURE HYDROGEN

Palladium-based alloys are effective catalysts for the cathodic reaction of hydrogen evolution, therefore they can be used for hydrogen purification in industry. The purpose of the article was to identify the role of the chemical composition of Pd-Sc alloy in the processes of injection and extraction of atomic hydrogen. The composition and morphology of the surface were determined using energy dispersive X-ray spectroscopy and atomic force microscopy. Hydrogen permeability studies were carried out using cyclic voltammetry and two-stage cathode-anode chronoamperometry in deaerated solutions of 0.1 M H2SO4. It was found that with an increase in the time of hydrogenation, a decrease in cathode chronoamperograms occurs, which indicates an increase in the ionization speed of atomic hydrogen.