Our group has been interested in developing new analytical methods to probe single molecules and nanoparticles and understand their electrochemical response. In this talk, I will present our recent research on electrochemistry of single nanoparticle collision on an ultramicroelectrode (UME). I will first describe some of the tremendous potentials (and challenges) of studying individual nanoparticles in an electrochemical system and how UMEs are the best tools for this research. I will then focus on three related topics in this area: 1) the discovery of individual nanobubbles in single-particle collision, 2) the use of fast-scan cyclic voltammetry to obtain chemical resolution and study electron-transfer kinetics, and 3) the observation of current oscillations in the oxidation of single silver nanoparticles.
Bo Zhang, University of Washington
Electrochemistry of Single Nanoparticle Collision