Synthesis of well-defined pentagonally prismatic silver nanoparticles: role of bromide in (100) stabilization and facet preservation

Abstract

We have demonstrated the effect of bromide for exclusive (100) stabilization that enabled the preparation of pentagonal prisms (AgPPNPs), a newly developed nanoscale shape. High-quality precursors and exact amount of bromide were necessary requirements for the precise length and faceting control. Bromide excess resulted in AgPPNP rounding, highlighting a delicate balance in faceting control and shape preservation.