Fig. 1. (a) A schematic representation of aqueous nanodroplets (AnDs) landing on a TEM grid electrode and subsequent gold nanoparticle synthesis. (b) A single event current trace of the nanoparticle synthesis reaction monitored in situ by chronoamperometry (at −0.4 V vs. Ag/AgNO3). (c) A TEM micrograph displaying an AnD-synthesized gold nanoparticle. (d) A schematic illustration of selective electrodeposition of 1st-row transition metal shells on gold seeds. (e) Chronoamperogram corresponding to the shell deposition process. (f) A TEM micrograph of Au–Ni nanoparticles.
