| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8020334 | Materials Letters | 2014 | 4 Pages |
Abstract
The Au@Rh core-shell nanoparticles (NPs) with Rh depositing on the spherical Au NPs were synthesized for the first time using successive reduction method. Au NPs were prepared by reducing HAuCl4 with l-ascorbic acid as the reducing agent and cetyltrimethylammonium bromide (CTAB) as the capping agent. Au@Rh NPs were then obtained by reducing RhCl3 in the presence of the pre-synthesized Au NPs. The morphology of the Au@Rh NPs is dendritic. Au@Rh NPs with molar ratios Au:Rh of 5:1, 2:1, 1:1 and 1:2 show that the Rh shell is polycrystalline and the growth of Rh on the Au NPs is heterogeneous nucleation.
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Authors
Jiao Jiao, Xiaojun Liu, Hong He,