Scientists from the Department of Chemistry, Juraj Nikolić, Tea Juračić, Tin Klačić, Danijel Namjesnik, and Tajana Begović, in collaboration with Jozefina Katić from the Faculty of Chemical Engineering and Technology at the University of Zagreb, have published a scientific paper titled "Surface properties and corrosion protection study of poly(N-ethyl-4-vinylpyridine) polyelectrolyte-based coating on the electrochemically formed Ti|TiO2 surface" in the prestigious Journal of Materials Chemistry C (IF = 5.7).
The paper examines the effect of poly(N-ethyl-4-vinylpyridine) (PE4VP) polycation adsorption as a corrosion protection layer on the surface of titanium and titanium dioxide. In the first part of the research, the adsorption of PE4VP from solutions of different ionic strengths onto titanium with an electrochemically prepared titanium dioxide layer was studied to determine the conditions under which PE4VP best covers the sample surface. After successfully preparing the protective layer, corrosion tests were conducted on samples with and without the PE4VP protective layer using electrochemical impedance spectroscopy to determine its effectiveness. It was shown that adding the PE4VP protective layer to the electrochemically prepared TiO2 sample increases corrosion protection effectiveness by 71.5% compared to the sample that isn't coated with PE4VP.
This research represents a step forward in applying polyelectrolyte adsorption on metal surfaces to protect them from external influences.
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