Local structural characterization of Au/Pt bimetallic nanoparticles

H. M. Chen; H. C. Peng; R. S. Liu; S. F. Hu; L. Y. Jang

doi:10.1016/j.cplett.2005.12.086

Local structural characterization of Au/Pt bimetallic nanoparticles

H. M. Chen, H. C. Peng, R. S. Liu^*, S. F. Hu, L. Y. Jang

^*Corresponding author for this work

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

26 Citations (Scopus)

Abstract

In this study, we examined the amount-dependent change in morphology for a series of Au/Pt bimetallic nanoparticles synthesized using chemical reduction. The Au/Pt molar ratio was varied from 1/1 to 1/4 to synthesize Pt shell layers with different thicknesses. We have obtained that these bimetallic nanoparticles can form flower-like nanoparticles. Moreover, an extended X-ray absorption fine structure (EXAFS) analysis was used to demonstrate the structure of Au/Pt bimetallic nanoparticles. The EXAFS results confirmed the formation of a core-shell structure and inter-diffusion between Au and Pt atoms. The composition of the shell layer was found to be Pt-enriched Au/Pt alloy.

Original language	English
Pages (from-to)	484-488
Number of pages	5
Journal	Chemical Physics Letters
Volume	420
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2005.12.086
Publication status	Published - 2006 Mar 21
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2005.12.086

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@article{1ef48c6e9b3540ddba4b097bb732edaa,

title = "Local structural characterization of Au/Pt bimetallic nanoparticles",

abstract = "In this study, we examined the amount-dependent change in morphology for a series of Au/Pt bimetallic nanoparticles synthesized using chemical reduction. The Au/Pt molar ratio was varied from 1/1 to 1/4 to synthesize Pt shell layers with different thicknesses. We have obtained that these bimetallic nanoparticles can form flower-like nanoparticles. Moreover, an extended X-ray absorption fine structure (EXAFS) analysis was used to demonstrate the structure of Au/Pt bimetallic nanoparticles. The EXAFS results confirmed the formation of a core-shell structure and inter-diffusion between Au and Pt atoms. The composition of the shell layer was found to be Pt-enriched Au/Pt alloy.",

author = "Chen, {H. M.} and Peng, {H. C.} and Liu, {R. S.} and Hu, {S. F.} and Jang, {L. Y.}",

note = "Funding Information: We thank the National Science Council of Taiwan, for financially supporting this research under Contract No. NSC 94-2113-M-002-006.",

year = "2006",

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doi = "10.1016/j.cplett.2005.12.086",

language = "English",

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journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Local structural characterization of Au/Pt bimetallic nanoparticles

AU - Chen, H. M.

AU - Peng, H. C.

AU - Liu, R. S.

AU - Hu, S. F.

AU - Jang, L. Y.

N1 - Funding Information: We thank the National Science Council of Taiwan, for financially supporting this research under Contract No. NSC 94-2113-M-002-006.

PY - 2006/3/21

Y1 - 2006/3/21

N2 - In this study, we examined the amount-dependent change in morphology for a series of Au/Pt bimetallic nanoparticles synthesized using chemical reduction. The Au/Pt molar ratio was varied from 1/1 to 1/4 to synthesize Pt shell layers with different thicknesses. We have obtained that these bimetallic nanoparticles can form flower-like nanoparticles. Moreover, an extended X-ray absorption fine structure (EXAFS) analysis was used to demonstrate the structure of Au/Pt bimetallic nanoparticles. The EXAFS results confirmed the formation of a core-shell structure and inter-diffusion between Au and Pt atoms. The composition of the shell layer was found to be Pt-enriched Au/Pt alloy.

AB - In this study, we examined the amount-dependent change in morphology for a series of Au/Pt bimetallic nanoparticles synthesized using chemical reduction. The Au/Pt molar ratio was varied from 1/1 to 1/4 to synthesize Pt shell layers with different thicknesses. We have obtained that these bimetallic nanoparticles can form flower-like nanoparticles. Moreover, an extended X-ray absorption fine structure (EXAFS) analysis was used to demonstrate the structure of Au/Pt bimetallic nanoparticles. The EXAFS results confirmed the formation of a core-shell structure and inter-diffusion between Au and Pt atoms. The composition of the shell layer was found to be Pt-enriched Au/Pt alloy.

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U2 - 10.1016/j.cplett.2005.12.086

DO - 10.1016/j.cplett.2005.12.086

M3 - Article

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SN - 0009-2614

VL - 420

SP - 484

EP - 488

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Local structural characterization of Au/Pt bimetallic nanoparticles

Abstract

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