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Title: A phase-transfer identification of core-shell structures in Ag-Pt nanoparticles
Authors: Yang, J. 
Lee, J.Y. 
Chen, L.X. 
Too, H.-P.
Issue Date: 31-Mar-2005
Citation: Yang, J., Lee, J.Y., Chen, L.X., Too, H.-P. (2005-03-31). A phase-transfer identification of core-shell structures in Ag-Pt nanoparticles. Journal of Physical Chemistry B 109 (12) : 5468-5472. ScholarBank@NUS Repository.
Abstract: Ag-Pt nanoparticles with a confirmed core-shell structure could only be formed by the successive reduction method using Ag nanoparticles as the seeds. The core-shell structure could be conveniently inferred from the transferability of the particles from water to toluene. Independent measurements by UV-vis spectroscopy, transmission electron microscopy, energy-dispersive X-ray analysis, and X-ray photoelectron spectroscopy were used to validate the experimental results. The reverse order of synthesis using Pt nanoparticles as the seeds did not result in any core-shell product. Instead a physical mixture of Ag nanoparticles and the original Pt seeds was obtained under the same experimental conditions. © 2005 American Chemical Society.
Source Title: Journal of Physical Chemistry B
ISSN: 15206106
DOI: 10.1021/jp045994k
Appears in Collections:Staff Publications

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