Metal dissolution reaction is the elementary reaction in corrosion and metal anode batteries. The kinetics of this reaction is highly dependent on the local surface structure of the metal. In this talk, I will use Ag as a model system and discuss the colocalized electrochemical mapping to study the anodic dissolution reaction. The dissolution reaction kinetics at local sites are directly measured by scanning electrochemical cell microscopy (SECCM). The nanoscale electrochemical map is correlated with the local defect density measured by geometrically necessary dislocation via colocalized characterization via electron backscatter diffraction (EBSD). Moreover, direct colocalized measurement at the grain boundaries showed that the dissolution kinetics is correlated with the grain boundary energy.

Probing the anodic dissolution of silver at local defect sites from nanoscale correlative electrochemical mapping

Fall 2022 abstracts, posters, and presentations will launch in mid-September.

ACS Fall 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.