Abstract

We developed a one-step synthesis method of glutathione-protected Au, Ag, Cu, Pd and Pt cluster powders. Average cluster sizes can be controlled by tuning the molar ratio of glutathione to metal salts as starting materials. In addition, size separation of the Cu clusters according to the number of constituent atoms was achieved, suggesting that there exist magic-number Cu clusters, as is the case for Au and Ag clusters.

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