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|Title:||Phase transfer identification of core-shell structures in Ag-Au bimetallic nanoparticles|
|Authors:||Yang, J. |
|Source:||Yang, J., Lee, J.Y., Chen, L.X., Too, H.-P. (2005). Phase transfer identification of core-shell structures in Ag-Au bimetallic nanoparticles. Journal of Nanoscience and Nanotechnology 5 (7) : 1095-1100. ScholarBank@NUS Repository.|
|Abstract:||The difference between the transfer of poly(vinylpyrrolidone)-protected Au and Ag nanoparticles from an aqueous solution to toluene was used to develop a simple experimental procedure that can positively identify the formation of bimetallic Ag-Au nanoparticles with the core-shell structure. The method was validated by UV-visible spectroscopy, EDX, and TEM measurements. Using this technique, we have found that core-shell nanoparticles of Ag-Au were formed by the seed-mediated growth method using Ag nanoparticles as the seeds. The reversed order of using Au nanoparticles as the seeds, on the contrary, could only produce a physical mixture of Ag-Au core-shell nanoparticles and isolated Ag nanoparticles. Copyright © 2005 American Scientific Publishers All rights reserved.|
|Source Title:||Journal of Nanoscience and Nanotechnology|
|Appears in Collections:||Staff Publications|
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