@article{Abazović_Savić_Novaković_Čomor_Mojović_2021, place={Belgrade, Serbia}, title={Electrochemical oxidation of 2,4,6-trichlorophenol on iron-doped nanozirconia ceramic: Scientific paper}, volume={86}, url={https://www.shd-pub.org.rs/index.php/JSCS/article/view/9773}, DOI={10.2298/JSC200804078A}, abstractNote={<p>Solvothermaly synthesized zirconium oxide nanopowders, pure and doped with various amounts of iron ions (1–20 %), were used as modifiers of glassy carbon electrodes. The modified electrodes were tested in the reaction of electrochemical oxidation of 2,4,6-trichlorophenol (TCP) in order to inves­tigate the influence of doping on electrochemical performance of zirconia mat­rix. The techniques of cyclic voltammetry and electrochemical impedance spectroscopy were employed. Cyclic voltammetry showed that electro­oxid­ation of TCP proceeded through the oxidation of hydroxyl group. Possible pathway included the formation of quinones and the formation of polyphenol film on the electrode surface, leading to the electrode fouling. Iron doping enhanced the activity of zirconia matrix towards TCP electrooxidation. Elec­trochemical impedance spectroscopy showed the importance of iron content in zirconia matrix for the preferable pathway of TCP electrooxidation. The quin­one formation pathway was favoured by low iron doped zirconia (doped with 1% of iron), while polyphenol film formation on the electrode surface was more pronounced at samples with higher iron ion content (for doping with 10 and 20 % of iron). The sample with 5 % of added iron ions, showed inter­medi­ate behaviour, where the formed polyphenol film showed slight degradation.</p>}, number={5}, journal={Journal of the Serbian Chemical Society}, author={Abazović, Nadica and Savić, Tatjana and Novaković, Tatjana and Čomor, Mirjana and Mojović, Zorica}, year={2021}, month={Jun.}, pages={495–505} }