Synthesis and characterization of gold atomic clusters by the two-phase method |
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| Authors: | M J Rodríguez-Vázquez C Vázquez-Vázquez J Rivas M A López-Quintela |
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| Institution: | 1. Laboratory of Magnetism and Nanotechnology, Institute of Technological Research, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
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| Abstract: | In this work we present a simple procedure for the production of gold atomic clusters by means of a modification of the Brust’s two-phase method, using tetrahexylammonium bromide as capping agent. The gold atomic clusters obtained have the following formula: Aun, with $3 \leq \textit{n} \leq 13$ , where n is the number of gold atoms per cluster. We report the formation of different species at different stages of the reduction reaction. Au clusters were characterized by TEM, MALDI-TOF mass spectrometry and UV-vis spectroscopy. Gold clusters are stable in solution after several years of preparation. |
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