Bifunctional Au@Pt hybrid nanorods.
The controlled synthesis of bifunctional Au@Pt hybrid nanorods has been realized through a simple wet chemical approach. Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and UV-vis-near infrared spectroscopy (UV-vis-NIR) were employed to characterize the obtained hybrid nanorods. TEM results indicate that the thickness of Pt nanoislands on the surfaces of gold nanorods can be easily tunable via controlling the molar ratio of Au nanorods to the H(2)PtCl(6). These Au@Pt hybrid nanorods have dual functions, which can be used not only for surface enhanced Raman spectroscopy (SERS), but also to exhibit good catalytic activity for O(2) reduction. It is expected that these hybrid nanorods can be used as new functional building blocks to assemble novel three-dimensional (3D) complex multicomponent nanostructures, which are believed to be useful for electrochemical nanodevices.
Guo, S; Wang, L; Wang, Y; Fang, Y; Wang, E
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