RT info:eu-repo/semantics/article
T1 New developments in scanning microelectrochemical techniques: a highly sensitive route to evaluate degradation reactions and protection methods with chemical selectivity
A1 Souto, Ricardo Manuel
A1 Filotás, Dániel
A1 Fernández Pérez, Bibiana María
A1 Nagy, Lívia
A1 Nagy, Géza
A2 Química
A2 Grupo de Electroquímica y Corrosión
Instituto de Materiales y Nanotecnología
Departamento de Química
K1 Scanning electrochemical microscopy
K1 Corrosion
K1 ion-selective microelectrode tips
K1 Metal-coating systems
K1 pH distributions
K1 concentration distributions
AB The scanning electrochemical microscope (SECM) offers a highly sensitive route to evaluate degradation reactions and protection methods with chemical selectivity by using ion-selective microelectrodes as tips, thus operating SECM potentiometrically. Spatially resolved imaging of electrochemical reactivity related to each component of the investigated material can thus be effectively monitored selectively both in situ and in real time. The applicability of this method has been illustrated using two practical examples of galvanic corrosion processes, namely a model Zn-Cu pair, and a metal-coating system consisting in the exposure of cut edges of coil-coated galvanized steel to aqueous saline environment. In this contribution, localized pH and zinc(II) ion distributions originated around the corroding systems immersed in 1 mM NaCl solution are shown
YR 2018
FD 2018
LK http://riull.ull.es/xmlui/handle/915/18991
UL http://riull.ull.es/xmlui/handle/915/18991
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 31-dic-2024