Atom transfer between precision nanoclusters and polydispersed nanoparticles: a facile route for monodisperse alloy nanoparticles and their superstructures

Abstract

Reactions between atomically precise noble metal nanoclusters (NCs) have been studied widely in the recent past, but such processes between NCs and plasmonic nanoparticles (NPs) have not been explored earlier....

Ambient microdroplet annealing of nanoparticles

“…Ligands usually form interdigitated structures in these types of assemblies. 33 The Ag(111) lattice spacing of 0.23 nm ( Fig. 2f ) and the TEM-energy dispersive spectroscopy (TEM-EDS) data (Fig.…”

“…Polydisperse Ag@PET NPs were synthesized by our previously described method with slight modifications. 33 Briefly, PET (0.58 μL) was added to pure methanol (30 mL) at 25 °C. Subsequently, AgNO 3 (50 mg) in Millipore water (0.5 mL) was added to the above solution.…”

Self‐Assembly of Precision Noble Metal Nanoclusters: Hierarchical Structural Complexity, Colloidal Superstructures, and Applications

“…demonstrated an atom transfer reaction between Au NCs and polydispersed Ag NPs as a facile route for monodisperse alloy NPs and their self‐assembled superstructures. [ 352 ] The authors used [Au 25 (PET) 18 ] − NCs and polydispersed Ag@PET NPs. A systematic analysis using time‐dependent electrospray ionization mass spectrometry (ESI‐MS) suggested an atom transfer reaction between the Au NCs and Ag NPs, through transient [Au 25− x Ag x (PET) n ] alloy NC intermediates.…”

The emergence of mass spectrometry for characterizing nanomaterials. Atomically precise nanoclusters and beyond

“…98,110 By recording mass spectra as a function of time, the evolution of the composition of a reacting mixture can even be monitored, which allows a better comprehension of the formation process, especially for alloyed nanoclusters. 108,[111][112][113][114] The Xie group and Pradeep group did impressive works using these approaches. 16,17 In particular, timedependent electrospray ionization mass spectrometry was found to be a powerful tool to follow the formation of MAuxAg28-…”