Corrosion of Titanium Electrode Used for Solar Saline Electroflotation

Madrid, Felipe M. Galleguillos; Arancibia-Bravo, Maria; Cisterna, Jonathan; Soliz, Alvaro; Salazar-Avalos, Sebastian; Guevara, Bastian; Sepulveda, Felipe; Caceres, Luis


The solar electroflotation (EF) processes using saline electrolytes are today one of the great challenges for the development of electrochemical devices, due to the corrosion problems that are generated during the operation by being in permanent contact with Cl- ions. This manuscript discloses the corrosion behavior of titanium electrodes using a superposition model based on mixed potential theory and the evaluation of the superficial performance of the Ti electrodes operated to 4 V/SHE solar electroflotation in contact with a solution of 0.5 M NaCl. Additionally provided is an electrochemical analysis of Ti electrodes regarding HER, ORR, OER, and CER that occur during the solar saline EF process. The non-linear superposition model by mixed potential theory gives electrochemical and corrosion parameters that complement the information published in scientific journals, the corrosion current density and corrosion potential in these conditions is 0.069 A/m(2) and -7.27 mV, respectively. The formation of TiO2 and TiOCl on the anode electrode was visualized, resulting in a reduction of its weight loss of the anode electrode.

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Título según WOS: ID WOS:000987346500001 Not found in local WOS DB
Título de la Revista: MATERIALS
Volumen: 16
Número: 9
Editorial: MDPI
Fecha de publicación: 2023


Notas: ISI