posted on 2024-03-14, 19:38authored byMichelle L. Personick, Abdoulie A. Jallow, Gabriel C. Halford, Lane A. Baker
Electrodeposition
of nanoparticles is investigated with a multichannel
potentiostat in electrochemical and chemical arrays. De novo deposition and shape control of palladium nanoparticles are explored
in arrays with a two-stage strategy. Initial conditions for electrodeposition
of materials are discovered in a first stage and then used in a second
stage to logically expand chemical and electrochemical parameters.
Shape control is analyzed primarily with scanning electron microscopy.
Using this approach, optimized conditions for the electrodeposition
of cubic palladium nanoparticles were identified from a set of previously
untested electrodeposition conditions. The parameters discovered through
the array format were then successfully extrapolated to a traditional
bulk three-electrode electrochemical cell. Electrochemical arrays
were also used to explore electrodeposition parameters reported in
previous bulk studies, further demonstrating the correspondence between
the array and bulk systems. These results broadly highlight opportunities
for electrochemical arrays, both for discovery and for further investigations
of electrodeposition in nanomaterials synthesis.