Bifunctional Au@Pt hybrid nanorods

Shaojun Guo; Liang Wang; Yuling Wang; Youxing Fang; Erkang Wang

doi:10.1016/j.jcis.2007.06.022

Bifunctional Au@Pt hybrid nanorods

Shaojun Guo, Liang Wang, Yuling Wang, Youxing Fang, Erkang Wang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

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 H₂PtCl₆. 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 O₂ 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.

Original language	English
Pages (from-to)	363-368
Number of pages	6
Journal	Journal of Colloid and Interface Science
Volume	315
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2007.06.022
Publication status	Published - 1 Nov 2007
Externally published	Yes

Keywords

Catalysis
Gold nanorod
Hybrid material
Platinum nanoparticle
SERS

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10.1016/j.jcis.2007.06.022

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title = "Bifunctional Au@Pt hybrid nanorods",

abstract = "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 H2PtCl6. 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 O2 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.",

keywords = "Catalysis, Gold nanorod, Hybrid material, Platinum nanoparticle, SERS",

author = "Shaojun Guo and Liang Wang and Yuling Wang and Youxing Fang and Erkang Wang",

year = "2007",

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doi = "10.1016/j.jcis.2007.06.022",

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journal = "Journal of Colloid and Interface Science",

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T1 - Bifunctional Au@Pt hybrid nanorods

AU - Guo, Shaojun

AU - Wang, Liang

AU - Wang, Yuling

AU - Fang, Youxing

AU - Wang, Erkang

PY - 2007/11/1

Y1 - 2007/11/1

N2 - 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 H2PtCl6. 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 O2 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.

AB - 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 H2PtCl6. 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 O2 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.

KW - Catalysis

KW - Gold nanorod

KW - Hybrid material

KW - Platinum nanoparticle

KW - SERS

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Bifunctional Au@Pt hybrid nanorods

Abstract

Keywords

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