Please use this identifier to cite or link to this item:
|Title:||Size and composition tunable Ag-Au alloy nanoparticles by replacement reactions|
|Authors:||Zhang, Q. |
|Source:||Zhang, Q., Lee, J.Y., Yang, J., Boothroyd, C., Zhang, J. (2007-06-10). Size and composition tunable Ag-Au alloy nanoparticles by replacement reactions. Nanotechnology 18 (24) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0957-4484/18/24/245605|
|Abstract:||Ag-Au alloy nanoparticles with tunable size and composition were prepared by a replacement reaction between Ag nanoparticles and HAuCl4 at elevated temperatures. The formation of homogeneous alloy nanoparticles was confirmed by selected-area energy-dispersive x-ray spectroscopy (SAEDX), UV-visible absorption spectroscopy, high resolution transmission electron microscopy (HRTEM) and electron diffraction. This method leverages upon the rapid interdiffusion of Ag and Au atoms in the reduced dimension of a nanoparticle, elevated temperatures and the large number of vacancy defects created in the replacement reaction. This method of preparation has several notable advantages: (1) independent tuning of the size and composition of alloy nanoparticles; (2) production of alloy nanoparticles in high concentrations; (3) general utility in the synthesis of alloy nanoparticles that cannot be obtained by the co-reduction method. © IOP Publishing Ltd.|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 29, 2018
checked on Apr 20, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.