High-precision synthesis and electrochemistry of Pt nanoparticles

Overview

Study correlates precise nanoparticle synthesis with catalytic activity. Contributed to this study by conducting electrochemical characterization on nanoparticles and validating synthesis techniques using catalyst performance testing.

Findings

• A seed-mediated synthesis separates nucleation from growth, giving precise control over Pt nanoparticle size.
• Monodisperse 3, 5 and 7 nm particles (size spread under 10%) allow the particle size effect to be studied on its own.
• Electrochemical and dissolution measurements show 5 nm particles strike the best balance between oxygen reduction activity and stability.