Local structural characterization of Au/Pt bimetallic nanoparticles

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

Research output: Contribution to journalArticle

23 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 languageEnglish
Pages (from-to)484-488
Number of pages5
JournalChemical Physics Letters
Volume420
Issue number4-6
DOIs
Publication statusPublished - 2006 Mar 21

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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