RT info:eu-repo/semantics/article
T1 Spatially resolved measurement of electrochemical activity and pH distributions in corrosion processes by scanning electrochemical microscopy using antimony microelectrode tips
A1 Souto, Ricardo Manuel
A1 Izquierdo Pérez, Javier
A1 Nagy, Lívia
A1 Varga, Ágnes
A1 Santana, Juan José
A1 Nagy, Géza
K1 Scanning electrochemical microscopy
K1 galvanic corrosion
K1 pH distribution
K1 antimony microelectrode
AB A new method for the spatially-resolved measurement of pH during corrosion processes with the scanning electrochemical microscope (SECM) is presented. Antimony tips are employed because the dual-function characteristics of this material allow the combined amperometric/potentiometric operation of the SECM. The applicability of this technique is illustrated by considering the galvanic corrosion of a model zinc-iron pair immersed in 0.1 M NaCl aqueous solution. Spatially resolved images of pH and oxygen concentration above the metal specimens could be obtained in the same experiment.
YR 2011
FD 2011
LK http://riull.ull.es/xmlui/handle/915/19139
UL http://riull.ull.es/xmlui/handle/915/19139
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 27-dic-2024