Abstract
Titanium electrodes covered with ruthenium and antimony oxides with different compositions (Ti/(RuO2)0.5–(Sb2O5)0.5 and Ti/(RuO2)0.8–(Sb2O5)0.2) were synthesized by using the ionic liquid (IL) and Pechini methods. These electrodes were characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and electrochemical techniques, showing that the electrodes prepared by the IL method (green chemistry route) presented grains, a noncracked morphology, rutile structure, and significant electroactive area. The electrocatalytic nature of both electrodes was evaluated by electrochemical degradation of a persistent organic compound (atrazine herbicide) by applying 10 and 20 mA cm–2, and compared, for the first time, with a nonactive electrode with higher oxidation power (boron-doped diamond (BDD)). Results clearly showed that electrodes obtained by the IL method achieved higher degradation efficiencies. Compared with BDD anode, the Ti/(RuO2)0.8–(Sb2O5)0.2 electrode showed a...
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