期刊
CHEMICAL PHYSICS LETTERS
卷 610, 期 -, 页码 256-260出版社
ELSEVIER
DOI: 10.1016/j.cplett.2014.07.047
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资金
- German Academic Exchange Service (DAAD) [56267063]
- German Federal Environmental Foundation (DBU)
- German Federal Ministry of Education and Research (BMBF-NanoMatFutur) [FKZ 03X5523]
Over three decades after the first synthesis of stabilized Au-55-clusters many scientific questions about gold cluster properties are still unsolved and ligand-free colloidal clusters are difficult to fabricate. Here we present a novel route to produce ultra-small gold particles by using a green technique, the laser ablation and fragmentation in water, without using reductive or stabilizing agents at any step of the synthesis. For fabrication only a pulsed laser, a gold-target, pure water, sodium hydroxide and hydrogen peroxide are deployed. The particles are exemplarily hybridized to graphene supports showing that these carbon-free colloidal clusters might serve as versatile building blocks. (C) 2014 Elsevier B.V. All rights reserved.
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