Molecular metal nanoparticles with pseudo-plasma absorption band.

ABSTRACT: Metal nanoparticles include molecular nanoclusters and metallic nanocrystals. Investigating the critical transition sizes from nanoclusters to nanocrystals is appealing. However, achieving precise size control near the critical size region remains challenging, especially for not-so-noble metal nanoparticles (Ag, Cu etc.). Herein, we introduced an active metal anti-galvanic doping strategy to resolve both stability and multi-dispersity issues and demonstrated the gram-scale synthesis (2.40 g of crystals, more than 200 times the existing crystal output record for over 100-metal-atom nanoparticles) of a 1796-atom Ag-Zn nanoparticle. Furthermore, we successfully de-alloyed the Ag-Zn nanoparticles with the remaining structure essentially unchanged via a ligand-exchange method, obtaining 1.03 g

SUBMITTER: Fang L 

PROVIDER: S-EPMC12906343 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature