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Research Letters in Materials Science
Volume 2008, Article ID 619032, 4 pages
Research Letter

Synthesis of Ag or Pt Nanoparticles by Hydrolysis of Either Ag2Na or PtNa

Department of Mechanical, Automotive and Materials Engineering, University of Windsor, Windsor, ON, Canada N9B 3P4

Received 13 February 2008; Accepted 19 March 2008

Academic Editor: Yadong Yin

Copyright © 2008 Huabin Wang and Derek O. Northwood. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Ag and Pt nanoparticles have successfully been synthesized by hydrolysis of either Ag2Na or PtNa at room temperature. The oxidation of sodium in the Pt-Na pellets was much faster than that in the Ag-Na pellets since Pt is a catalyst for H2O formation reaction from hydrogen and oxygen at room temperature. The hydrolysis byproduct, NaOH, has a high solubility and easily is removed. This method offers a simple method of preparing transition metal nanoparticles. The Ag and Pt nanoparticles prepared by this method were crystalline in nature, and spherical in shape with a mean size of around 10 nm.