RT info:eu-repo/semantics/article
T1 In situ, real-time imaging of redox active species on Al/Cu galvanic couple and corrosion inhibition with 2-mercaptobenzimidazole and octylphosphonic acid
A1 Souto, Ricardo Manuel
A1 Kozlica, Dˇzevad K.
A1 Hernández-Concepción, Brenda
A1 Izquierdo Pérez, Javier
A1 Miloˇsev, Ingrid
A2 Química
A2 Electroquímica y Corrosión
Instituto de Materiales y Nanotecnología
Proyecto de investigación PID2021-127445NB-I00
AB In situ localized electrochemical activity in the Al/Cu galvanic pair at the corrosion potential in an aggressivechloride electrolyte was investigated, along with the effect of the organic inhibitors 2-mercaptobenzimidazole(MBI) and octylphosphonic acid (OPA) on arresting the corresponding corrosion processes. Scanning electrochemical microscopy (SECM) and the scanning vibrating electrode technique (SVET) were used to discern localanodic and cathodic sites at the surface. The electrochemical activity in the galvanic pair was greatly reducedwhen the copper surface was covered with an MBI-containing film. SECM was successfully applied to visualizespatially resolved differences in local electrochemical activity related to the inhibitor action.
YR 2023
FD 2023
LK http://riull.ull.es/xmlui/handle/915/34568
UL http://riull.ull.es/xmlui/handle/915/34568
LA en
NO Corrosion Science, 217 (2023) 111114, 18 pp. https://doi.org/10.1016/j.corsci.2023.111114
DS Repositorio institucional de la Universidad de La Laguna
RD 24-nov-2024