Au@Pd Core−Shell Nanoparticles through Digestive Ripening
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- 作者：Deepa Jose ; Balaji R. Jagirdar
- 刊名：Journal of Physical Chemistry C
- 出版年：2008
- 出版时间：July 10, 2008
- 年：2008
- 卷：112
- 期：27
- 页码：10089 - 10094
- 全文大小：1480K
- 年卷期：v.112,no.27(July 10, 2008)
- ISSN：1932-7455
文摘
Colloids of gold and palladium nanoparticles have been prepared by the Solvated Metal Atom Dispersion (SMAD) method. Digestive ripening, a process involving mixing of the as-prepared gold and palladium colloids consisting of polydisperse nanoparticles and refluxing the mixture in the presence of a surfactant resulted in highly monodisperse Au@Pd core−shell nanoparticles with an average diameter of 6.6 
0.5 nm. The synthesis has been successfully carried out reproducibly on gram scale. The core−shell structure was established by using UV−visible spectroscopy, high-resolution electron microscopy, energy filtered electron microscopy, energy dispersive X-ray analysis, high angle annular dark field imaging, and powder X-ray diffraction methods.
0.5 nm. The synthesis has been successfully carried out reproducibly on gram scale. The core−shell structure was established by using UV−visible spectroscopy, high-resolution electron microscopy, energy filtered electron microscopy, energy dispersive X-ray analysis, high angle annular dark field imaging, and powder X-ray diffraction methods.