Roberta Duarte Coteiro's research while affiliated with University of São Paulo and other places
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Publications (3)
The electrochemical degradation of 4-chlorophenol and its main by-products was investigated in acid medium using binary oxides electrodes of nominal composition Ti/Ru0.3Ti0.7O2 and Ti/Ru0.3Sn0.7O2 prepared by thermal decomposition through two different routes: inorganic precursors dissolved in isopropanol and polymeric precursors (PPM). The aim of...
Anodes containing ruthenium, titanium, and tin oxides supported on metallic Ti were prepared by thermal decomposition of precursor salts in order to investigate the effect that changing the solvent (from HCl/H2O to isopropanol) would have on the real composition of the mixed oxide electrodes. The precursor solutions and their mixtures were analyzed...
Citations
... The oxide electrodes, with the nominal composition Ti/ Ru 0.3 Ti 0.7 O 2 and Ti/Pt 0.3 Sn 0.7 O 2 , were prepared by a standard method, fixing the geometric area at 2 cm 2 and the oxide thickness at 2 mm. [8][9][10] For the electrochemical analyses, the oxide anodes were fixed in a glass tube, which was inserted into an electrochemical cell and platinum foil was used as the counter electrode. For photoelectro-oxidation process, the cell with the oxide electrode was placed in a closed light chamber and exposed to artificial UV radiation. ...
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... V vs. Ag/AgCl. The general analysis of the voltammetric behavior indicates that there is a typical prominent peak of the Ru(III)/Ru(IV) redox transition[45][46][47] for all anodes. The voltammetric charge recorded in the potential range from 0.0 to 1.2 V (where the OER does not occur) was used to estimate the electrochemically active surface area[48]. ...
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