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Insights into the Synthesis Mechanism of Ag29 Nanoclusters.

ABSTRACT: The current understanding of the synthesis mechanisms of noble metal clusters is limited, in particular for Ag clusters. Here, we present a detailed investigation into the synthesis process of atomically monodisperse Ag29 clusters, prepared via reduction of AgNO3 in the presence of dithiolate ligands. Using optical spectroscopy, mass spectrometry, and X-ray spectroscopy, it was determined that the synthesis involves a rapid nucleation and growth to species with up to a few hundred Ag atoms. From these larger species, Ag29 clusters are formed and their concentration increases steadily over time. Oxygen plays an important role in the etching of large particles to Ag29. No other stable Ag cluster species are observed at any point during the synthesis.

SUBMITTER: van der Linden M

PROVIDER: S-EPMC6369667 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Insights into the Synthesis Mechanism of Ag29 Nanoclusters.

van der Linden Marte M van Bunningen Arnoldus J AJ Delgado-Jaime Mario U MU Detlefs Blanka B Glatzel Pieter P Longo Alessandro A de Groot Frank M F FMF

The journal of physical chemistry. C, Nanomaterials and interfaces 20181119 49

The current understanding of the synthesis mechanisms of noble metal clusters is limited, in particular for Ag clusters. Here, we present a detailed investigation into the synthesis process of atomically monodisperse Ag29 clusters, prepared via reduction of AgNO3 in the presence of dithiolate ligands. Using optical spectroscopy, mass spectrometry, and X-ray spectroscopy, it was determined that the synthesis involves a rapid nucleation and growth to species with up to a few ...[more]

PMID: 30774744

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