Table of Contents
Crystals, Volume 10, Issue 5 (May 2020) – 83 articles
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Cover Story (view full-size image) Although gold nanoclusters represent the link species between atoms and nanoparticles and are the [...] Read more. Although gold nanoclusters represent the link species between atoms and nanoparticles and are the subject of current research, a high-resolution characterization is still missing. Here, we used the band forming experiment in analytical ultracentrifugation (AUC) to characterize the gold nanoclusters in the moment of their generation. The formation of different cluster species from the smallest, Au4, up to Au911 could be observed. Very stable clusters as Au55 appear in every experiment, and other cluster sizes appear more rarely. The extracted UV/Vis spectra could additionally be correlated to every cluster. These results present the characterization of the different nanocluster generations directly in the formation process of nanoparticles and therefore are a contribution to the understanding of their formation. View this paper