Single-Phase and Gram-Scale Routes toward Nearly Monodisperse Au and Other Noble Metal Nanocrystals

J. Am. Chem. Soc., 125 (47), 14280 -14281, 2003. 10.1021/ja038219b S0002-7863(03)08219-2
Web Release Date: November 4, 2003

Single-Phase and Gram-Scale Routes toward Nearly Monodisperse Au and Other Noble Metal Nanocrystals

Nikhil R. Jana and Xiaogang Peng*

Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701

xpeng@uark.edu

Received August 29, 2003

Abstract:

Single-phase approaches are introduced for the synthesis of nearly monodisperse Au and other noble metal nanocrystals. The new approaches possess all the advantages of the popular Brust method. With weak ligands or surfactants for the metal ions, the control of the size and size distribution of the nanocrystals in synthesis in the size range between 1 and 15 nm was achieved via maintaining balanced nucleation and growth by tuning the activities of the metal precursors and reducing reagents. Because only weak ligands are employed in the new synthetic schemes, surface modification and functionalization of the resulting nanocrystals can be readily carried out.

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